`),
- o[n].container &&
- (t += `
`),
- o[n].rows)
- ) {
- t += "
";
- for (const e of o[n].rows) {
- t += '
';
- for (const i of e)
- (t += '${
- i.label ? i.label : ''
- }`);
- t += '
';
- }
- (t += '
'),
- o[n].container && (t += ""),
- o[n].backdrop && (t += "");
- }
- o[n] = t;
- }
- (i +=
- "
"),
- (i += ni(t, a, e));
- const s = 'function' == typeof o[n] ? o[n]() : o[n];
- (i += li(t, s)), (i += '
');
- }
- }
- const l = document.createElement('div');
- (l.className = 'ML__keyboard'),
- e
- ? l.classList.add(e)
- : t.config.virtualKeyboardTheme
- ? l.classList.add(t.config.virtualKeyboardTheme)
- : /android|cros/i.test(navigator.userAgent) &&
- l.classList.add('material'),
- (l.innerHTML = i),
- ri(
- t,
- l.querySelectorAll(
- '.keycap, .action, .fnbutton, .bigfnbutton'
- )
- );
- const c = l.getElementsByClassName('layer-switch');
- for (let e = 0; e < c.length; ++e)
- c[e].classList.contains('shift')
- ? t._attachButtonHandlers(c[e], {
- pressed: ['shiftKeyboardLayer', 'shift'],
- default: [
- 'switchKeyboardLayer',
- c[e].getAttribute('data-layer'),
- ],
- pressAndHoldEnd: 'unshiftKeyboardLayer',
- })
- : t._attachButtonHandlers(c[e], {
- default: [
- 'switchKeyboardLayer',
- c[e].getAttribute('data-layer'),
- ],
- });
- const h = l.getElementsByClassName('keyboard-layer');
- return (
- Array.from(h).forEach(t => {
- t.addEventListener('mousedown', t => {
- t.preventDefault(), t.stopPropagation();
- }),
- t.addEventListener('touchstart', t => {
- t.preventDefault(), t.stopPropagation();
- });
- }),
- h[0].classList.add('is-visible'),
- window.addEventListener('mouseup', function() {
- t.hideAlternateKeys_(), t.unshiftKeyboardLayer_();
- }),
- window.addEventListener('blur', function() {
- t.hideAlternateKeys_(), t.unshiftKeyboardLayer_();
- }),
- window.addEventListener('touchend', function() {
- t.hideAlternateKeys_(), t.unshiftKeyboardLayer_();
- }),
- window.addEventListener('touchcancel', function() {
- t.hideAlternateKeys_(), t.unshiftKeyboardLayer_();
- }),
- l
- );
- },
- makeKeycap: ri,
- };
- const hi = {
- '−': '-',
- '-': '-',
- '\\alpha': 'alpha',
- '\\beta': 'beta',
- '\\gamma': 'gamma',
- '\\delta': 'delta',
- '\\epsilon': 'epsilon',
- '\\varepsilon': 'varepsilon',
- '\\zeta': 'zeta',
- '\\eta': 'eta',
- '\\theta': 'theta',
- '\\vartheta': 'vartheta',
- '\\iota': 'iota',
- '\\kappa': 'kappa',
- '\\lambda': 'lambda',
- '\\mu': 'mu',
- '\\nu': 'nu',
- '\\xi': 'xi',
- '\\pi': 'pi',
- '\\rho': 'rho',
- '\\sigma': 'sigma',
- '\\tau': 'tau',
- '\\upsilon': 'upsilon',
- '\\phi': 'phi',
- '\\varphi': 'varphi',
- '\\chi': 'chi',
- '\\psi': 'psi',
- '\\omega': 'omega',
- '\\Gamma': 'Gamma',
- '\\Delta': 'Delta',
- '\\Theta': 'Theta',
- '\\Lambda': 'Lambda',
- '\\Xi': 'Xi',
- '\\Pi': 'Pi',
- '\\Sigma': 'Sigma',
- '\\Phi': 'Phi',
- '\\Psi': 'Psi',
- '\\Omega': 'Omega',
- },
- di = {
- '\\pm': '+-',
- '\\times': 'xx',
- '\\colon': ':',
- '\\vert': '|',
- '\\Vert': '||',
- '\\mid': '|',
- '\\lbrace': '{',
- '\\rbrace': '}',
- '\\langle': '(:',
- '\\rangle': ':)',
- },
- pi = {
- '\\pm': '±',
- '\\times': '×',
- '\\colon': ':',
- '\\vert': '|',
- '\\Vert': '∥',
- '\\mid': '∣',
- '\\lbrace': '{',
- '\\rbrace': '}',
- '\\langle': '⟨',
- '\\rangle': '⟩',
- '\\lfloor': '⌊',
- '\\rfloor': '⌋',
- '\\lceil': '⌈',
- '\\rceil': '⌉',
- '\\vec': '⃗',
- '\\acute': '´',
- '\\grave': '`',
- '\\dot': '˙',
- '\\ddot': '¨',
- '\\tilde': '~',
- '\\bar': '¯',
- '\\breve': '˘',
- '\\check': 'ˇ',
- '\\hat': '^',
- };
- function mi(t) {
- return t
- .replace(/"/g, '"')
- .replace(/'/g, ''')
- .replace(//g, '>');
- }
- function ui(t, e) {
- return t && e.generateID ? ' extid="' + t + '"' : '';
- }
- function fi(t, e, i) {
- let s = !1;
- e = e || t.atoms.length;
- let a = '',
- o = '',
- n = -1,
- r = -1;
- const l = t.atoms[t.index];
- if (
- (t.index < e &&
- ('mord' === l.type || 'textord' === l.type) &&
- '0123456789,.'.indexOf(l.body) < 0 &&
- ((o = l.toMathML(i)),
- l.superscript && (n = t.index),
- l.subscript && (r = t.index),
- (t.index += 1)),
- o.length > 0)
- ) {
- if (
- ((s = !0),
- gi(t) && ((n = t.index), (t.index += 1)),
- yi(t) && ((r = t.index), (t.index += 1)),
- n >= 0 && r >= 0)
- )
- (a = '
' + o),
- (a += Si(t.atoms[r].subscript, 0, 0, i).mathML),
- (a += Si(t.atoms[n].superscript, 0, 0, i).mathML),
- (a += '');
- else if (n >= 0) {
- if (((a = '
' + o), gi(t))) {
- const e = Si(t.atoms[n].superscript, 0, 0, i).mathML,
- s = Si(t.atoms[n + 1].superscript, 0, 0, i).mathML;
- a +=
- ('′' !== e && '′' !== e) ||
- ('′' !== s && '′' !== s)
- ? '′' === e ||
- '′' === e
- ? '′'
- : e
- : '″';
- } else a += Si(t.atoms[n].superscript, 0, 0, i).mathML;
- a += '';
- } else
- r >= 0
- ? ((a = '
' + o),
- (a += Si(t.atoms[r].subscript, 0, 0, i).mathML),
- (a += ''))
- : (a = o);
- ('mi' !== t.lastType &&
- 'mn' !== t.lastType &&
- 'mtext' !== t.lastType &&
- 'fence' !== t.lastType) ||
- /^
(.*)<\/mo>$/.test(a) ||
- (a = '' + a),
- o.endsWith('>f') || o.endsWith('>g')
- ? ((a += ' '),
- (t.lastType = 'applyfunction'))
- : (t.lastType = /^(.*)<\/mo>$/.test(a)
- ? 'mo'
- : 'mi'),
- (t.mathML += a);
- }
- return s;
- }
- function gi(t) {
- return (
- t.index < t.atoms.length &&
- t.atoms[t.index].superscript &&
- 'msubsup' === t.atoms[t.index].type
- );
- }
- function yi(t) {
- return (
- t.index < t.atoms.length &&
- t.atoms[t.index].subscript &&
- 'msubsup' === t.atoms[t.index].type
- );
- }
- function bi(t, e, i) {
- let s = !1,
- a = '',
- o = e.atoms[e.index - 1];
- return (
- !!o &&
- (o.superscript ||
- o.subscript ||
- ((gi(e) || yi(e)) &&
- ((o = e.atoms[e.index]), (e.index += 1))),
- !!o &&
- (o.superscript && o.subscript
- ? ((a = '' + t),
- (a += Si(o.subscript, 0, 0, i).mathML),
- (a += Si(o.superscript, 0, 0, i).mathML),
- (a += ''))
- : o.superscript
- ? ((a = '' + t),
- (a += Si(o.superscript, 0, 0, i).mathML),
- (a += ''))
- : o.subscript &&
- ((a = '' + t),
- (a += Si(o.subscript, 0, 0, i).mathML),
- (a += '')),
- a.length > 0 &&
- ((s = !0), (e.mathML += a), (e.lastType = '')),
- s))
- );
- }
- function xi(t, e, i) {
- let s = !1;
- e = e || t.atoms.length;
- const a = t.index;
- let o = '';
- for (; t.index < e && 'text' === t.atoms[t.index].mode; )
- (o += t.atoms[t.index].body ? t.atoms[t.index].body : ' '),
- (t.index += 1);
- return (
- o.length > 0 &&
- ((s = !0),
- (o =
- '' + o + ''),
- (t.mathML += o),
- (t.lastType = 'mtext')),
- s
- );
- }
- function ki(t, e, i) {
- let s = !1;
- e = e || t.atoms.length;
- const a = t.index;
- let o = '',
- n = (function(t) {
- let e = -1,
- i = t.index,
- s = !1,
- a = !1;
- for (; i < t.atoms.length && !s && !a; )
- (s =
- 'mord' !== t.atoms[i].type ||
- '0123456789,.'.indexOf(t.atoms[i].body) < 0),
- (a = !s && t.atoms[i].superscript),
- i++;
- return a && (e = i - 1), e;
- })(t);
- for (
- n >= 0 && n < e && (e = n);
- t.index < e &&
- 'mord' === t.atoms[t.index].type &&
- '0123456789,.'.indexOf(t.atoms[t.index].body) >= 0;
-
- )
- (o += t.atoms[t.index].body), (t.index += 1);
- return (
- o.length > 0 &&
- ((s = !0),
- (o = '' + o + ''),
- n < 0 && gi(t) && ((n = t.index), (t.index += 1)),
- n >= 0 &&
- ((o = '' + o),
- (o += Si(t.atoms[n].superscript, 0, 0, i).mathML),
- (o += '')),
- (t.mathML += o),
- (t.lastType = 'mn')),
- s
- );
- }
- function vi(t, e, i) {
- let s = !1;
- e = e || t.atoms.length;
- let a = '',
- o = '';
- if (t.index < e && 'mopen' === t.atoms[t.index].type) {
- let n = !1,
- r = 0;
- const l = t.index;
- let c = -1,
- h = l + 1;
- for (; h < e && !n; )
- 'mopen' === t.atoms[h].type
- ? (r += 1)
- : 'mclose' === t.atoms[h].type && (r -= 1),
- -1 === r && ((n = !0), (c = h)),
- (h += 1);
- n &&
- ((a = ''),
- (a += Ai(t.atoms[l], i)),
- (a += Si(t.atoms, l + 1, c, i).mathML),
- (a += Ai(t.atoms[c], i)),
- (a += ''),
- ('mi' !== t.lastType &&
- 'mn' !== t.lastType &&
- 'mfrac' !== t.lastType &&
- 'fence' !== t.lastType) ||
- (a = '' + a),
- (t.index = c + 1),
- bi(a, t, i) && ((s = !0), (t.lastType = ''), (a = '')),
- (o = 'fence'));
- }
- return (
- a.length > 0 && ((s = !0), (t.mathML += a), (t.lastType = o)), s
- );
- }
- function wi(t, e, i) {
- let s = !1;
- e = e || t.atoms.length;
- let a = '',
- o = '';
- const n = t.atoms[t.index];
- if (t.index < e && ('mbin' === n.type || 'mrel' === n.type))
- (a += t.atoms[t.index].toMathML(i)), (t.index += 1), (o = 'mo');
- else if (t.index < e && 'mop' === n.type) {
- if ('limits' === n.limits && (n.superscript || n.subscript)) {
- const t = Ai(n, i);
- n.superscript && n.subscript
- ? ((a +=
- ('nolimits' !== n.limits
- ? ''
- : '') + t),
- (a += Si(n.subscript, 0, 0, i).mathML),
- (a += Si(n.superscript, 0, 0, i).mathML),
- (a +=
- 'nolimits' !== n.limits
- ? ''
- : ''))
- : n.superscript
- ? ((a +=
- ('nolimits' !== n.limits ? '' : '') +
- t),
- (a += Si(n.superscript, 0, 0, i).mathML),
- (a +=
- 'nolimits' !== n.limits ? '' : ''))
- : ((a +=
- ('nolimits' !== n.limits
- ? ''
- : '') + t),
- (a += Si(n.subscript, 0, 0, i).mathML),
- (a +=
- 'nolimits' !== n.limits
- ? ''
- : '')),
- (o = 'mo');
- } else {
- const e = t.atoms[t.index],
- n = 0 === e.latex.indexOf('\\operatorname'),
- r = n
- ? '' +
- Mi(e.body) +
- ''
- : Ai(e, i);
- (a += r),
- (t.index += 1),
- bi(a, t, i) && ((s = !0), (t.lastType = ''), (a = '')),
- (t.index -= 1),
- n || /^(.*)<\/mo>$/.test(r)
- ? (o = n ? 'mi' : 'mo')
- : ((a += ''),
- (o = 'applyfunction'));
- }
- ('mi' !== t.lastType && 'mn' !== t.lastType) ||
- /^(.*)<\/mo>$/.test(a) ||
- (a = '' + a),
- (t.index += 1);
- }
- return (
- a.length > 0 && ((s = !0), (t.mathML += a), (t.lastType = o)), s
- );
- }
- function Si(t, e, i, s) {
- const a = { atoms: t, index: e || 0, mathML: '', lastType: '' };
- if (
- ((i = i || (t ? t.length : 0)),
- 'number' == typeof t || 'boolean' == typeof t)
- )
- a.mathML = t.toString();
- else if ('string' == typeof t) a.mathML = t;
- else if (t && 'function' == typeof t.toMathML)
- a.mathML = t.toMathML(s);
- else if (Array.isArray(t)) {
- let t = 0;
- for (; a.index < i; )
- if (
- xi(a, i, s) ||
- ki(a, i, s) ||
- fi(a, i, s) ||
- wi(a, i, s) ||
- vi(a, i, s)
- )
- t += 1;
- else if (a.index < i) {
- let e = a.atoms[a.index].toMathML(s);
- 'mn' === a.lastType &&
- e.length > 0 &&
- 'genfrac' === a.atoms[a.index].type &&
- (e = '' + e),
- 'genfrac' === a.atoms[a.index].type
- ? (a.lastType = 'mfrac')
- : (a.lastType = ''),
- e.length > 0 && ((a.mathML += e), (t += 1)),
- (a.index += 1);
- }
- t > 1 && (a.mathML = '' + a.mathML + '');
- }
- return a;
- }
- function Ai(t, e) {
- let i = '';
- const s = Mi(t.body);
- return s && (i = '' + s + ''), i;
- }
- function Mi(t) {
- if (!t) return '';
- if ('string' == typeof t) return mi(t);
- if (!Array.isArray(t) && 'string' == typeof t.body)
- return mi(t.body);
- let e = '';
- for (const i of t) 'string' == typeof i.body && (e += i.body);
- return mi(e);
- }
- (te.MathAtom.prototype.toMathML = function(t) {
- const e = {
- '\\exponentialE': 'ⅇ',
- '\\imaginaryI': 'ⅈ',
- '\\differentialD': 'ⅆ',
- '\\capitalDifferentialD': 'ⅅ',
- '\\alpha': 'α',
- '\\pi': 'π',
- '\\infty': '∞',
- '\\forall': '∀',
- '\\nexists': '∄',
- '\\exists': '∃',
- '\\hbar': 'ℏ',
- '\\cdotp': '⋅',
- '\\ldots': '…',
- '\\cdots': '⋯',
- '\\ddots': '⋱',
- '\\vdots': '⋮',
- '\\ldotp': '.',
- },
- i = {
- '\\!': -3 / 18,
- '\\ ': 6 / 18,
- '\\,': 3 / 18,
- '\\:': 4 / 18,
- '\\;': 5 / 18,
- '\\enspace': 0.5,
- '\\quad': 1,
- '\\qquad': 2,
- '\\enskip': 0.5,
- };
- let s,
- a,
- o,
- n,
- r,
- l,
- c = '',
- h = '',
- d =
- {
- cal: 'script',
- frak: 'fraktur',
- bb: 'double-struck',
- scr: 'script',
- cmtt: 'monospace',
- cmss: 'sans-serif',
- }[this.fontFamily || this.font] || '';
- d && (d = ' mathvariant="' + d + '"');
- const p = this.latex ? this.latex.trim() : null;
- if ('text' === this.mode)
- c = '' + this.body + '';
- else
- switch (this.type) {
- case 'first':
- break;
- case 'group':
- case 'root':
- c = Si(this.body, 0, 0, t).mathML;
- break;
- case 'array':
- if (
- (((this.lFence && '.' !== this.lFence) ||
- (this.rFence && '.' !== this.rFence)) &&
- ((c += ''),
- this.lFence &&
- '.' !== this.lFence &&
- (c +=
- '' +
- (pi[this.lFence] || this.lFence) +
- '')),
- (c += '' +
- Si(this.array[a][s], 0, 0, t).mathML +
- '';
- c += '';
- }
- (c += ''),
- ((this.lFence && '.' !== this.lFence) ||
- (this.rFence && '.' !== this.rFence)) &&
- (this.rFence &&
- '.' !== this.rFence &&
- (c +=
- '' +
- (pi[this.lFence] || this.rFence) +
- ''),
- (c += ''));
- break;
- case 'genfrac':
- (this.leftDelim || this.rightDelim) && (c += ''),
- this.leftDelim &&
- '.' !== this.leftDelim &&
- (c +=
- '' +
- (pi[this.leftDelim] || this.leftDelim) +
- ''),
- this.hasBarLine
- ? ((c += ''),
- (c +=
- Si(this.numer, 0, 0, t).mathML ||
- ' '),
- (c +=
- Si(this.denom, 0, 0, t).mathML ||
- ' '),
- (c += ''))
- : ((c += ''),
- (c +=
- '' +
- Si(this.numer, 0, 0, t).mathML +
- ''),
- (c +=
- '' +
- Si(this.denom, 0, 0, t).mathML +
- ''),
- (c += '')),
- this.rightDelim &&
- '.' !== this.rightDelim &&
- (c +=
- '' +
- (pi[this.rightDelim] || this.rightDelim) +
- ''),
- (this.leftDelim || this.rightDelim) &&
- (c += '');
- break;
- case 'surd':
- this.index
- ? ((c += ''),
- (c += Si(this.body, 0, 0, t).mathML),
- (c += Si(this.index, 0, 0, t).mathML),
- (c += ''))
- : ((c += ''),
- (c += Si(this.body, 0, 0, t).mathML),
- (c += ''));
- break;
- case 'leftright':
- (c = ''),
- this.leftDelim &&
- '.' !== this.leftDelim &&
- (c +=
- '' +
- (pi[this.leftDelim] || this.leftDelim) +
- ''),
- this.body && (c += Si(this.body, 0, 0, t).mathML),
- this.rightDelim &&
- '.' !== this.rightDelim &&
- (c +=
- '
' +
- (pi[this.rightDelim] || this.rightDelim) +
- ''),
- (c += '');
- break;
- case 'sizeddelim':
- case 'delim':
- c +=
- '' +
- (pi[this.delim] || this.delim) +
- '';
- break;
- case 'accent':
- (c += ''),
- (c += Si(this.body, 0, 0, t).mathML),
- (c += '' + (pi[p] || this.accent) + ''),
- (c += '');
- break;
- case 'line':
- case 'overlap':
- break;
- case 'overunder':
- (r = this.overscript),
- (n = this.underscript),
- r && n
- ? (l = this.body)
- : r
- ? ((l = this.body),
- this.body[0] && this.body[0].underscript
- ? ((n = this.body[0].underscript),
- (l = this.body[0].body))
- : this.body[0] &&
- 'first' === this.body[0].type &&
- this.body[1] &&
- this.body[1].underscript &&
- ((n = this.body[1].underscript),
- (l = this.body[1].body)))
- : n &&
- ((l = this.body),
- this.body[0] && this.body[0].overscript
- ? ((r = this.body[0].overscript),
- (l = this.body[0].body))
- : this.body[0] &&
- 'first' === this.body[0].type &&
- this.body[1] &&
- this.body[1].overscript &&
- ((r = this.body[1].overscript),
- (l = this.body[1].body))),
- r && n
- ? ((c +=
- '' +
- Si(l, 0, 0, t).mathML),
- (c += Si(n, 0, 0, t).mathML),
- (c += Si(r, 0, 0, t).mathML),
- (c += ''))
- : r
- ? ((c +=
- '' +
- Si(l, 0, 0, t).mathML),
- (c += Si(r, 0, 0, t).mathML),
- (c += ''))
- : n &&
- ((c +=
- '' +
- Si(l, 0, 0, t).mathML),
- (c += Si(n, 0, 0, t).mathML),
- (c += ''));
- break;
- case 'placeholder':
- case 'mord': {
- c =
- e[p] ||
- p ||
- ('string' == typeof this.body ? this.body : '');
- const i = p
- ? p.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/)
- : null;
- i
- ? (c = '&#x' + i[1] + ';')
- : c.length > 0 &&
- '\\' === c.charAt(0) &&
- (c =
- 'string' == typeof this.body &&
- this.body.charCodeAt(0) > 255
- ? '&#x' +
- (
- '000000' +
- this.body.charCodeAt(0).toString(16)
- ).substr(-4) +
- ';'
- : 'string' == typeof this.body
- ? this.body.charAt(0)
- : this.body);
- const s = /\d/.test(c) ? 'mn' : 'mi';
- c =
- '<' +
- s +
- d +
- ui(this.id, t) +
- '>' +
- mi(c) +
- '';
- break;
- }
- case 'mbin':
- case 'mrel':
- case 'textord':
- case 'minner':
- c =
- p && e[p]
- ? '' + e[p] + ''
- : p && pi[p]
- ? '' + pi[p] + ''
- : Ai(this, t);
- break;
- case 'mpunct':
- c =
- '' +
- (pi[p] || p) +
- '';
- break;
- case 'mop':
- '' !== this.body &&
- ((c = ''),
- (c +=
- '\\operatorname' === p
- ? this.body
- : p || this.body),
- (c += ''));
- break;
- case 'mathstyle':
- break;
- case 'box':
- (c = '' +
- Si(this.body, 0, 0, t).mathML +
- '');
- break;
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- c += '';
- break;
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- c = '' +
- Si(this.body, 0, 0, t).mathML +
- '';
- break;
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- c += ' ';
- }
- return c;
- }),
- (te.toMathML = function(t, e) {
- return Si(t, 0, 0, e).mathML;
- });
- const Ci = {
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- '\\imaginaryJ': 'ⅉ',
- '\\pi': 'π',
- '\\exponentialE': 'ℯ',
- '﹢': '+',
- '＋': '+',
- '−': '-',
- '-': '-',
- '﹣': '-',
- '－': '-',
- '\\times': '*',
- '\\cdot': '*',
- '⨉': '*',
- '️✖': '*',
- '️×': '*',
- '.': '*',
- '÷': '/',
- '⁄': '/',
- '／': '/',
- '!': 'factorial',
- '\\mp': 'minusplus',
- '\\ne': '!=',
- '\\coloneq': ':=',
- '\\questeq': '?=',
- '\\approx': 'approx',
- '\\cong': 'congruent',
- '\\sim': 'similar',
- '\\equiv': 'equiv',
- '\\pm': 'plusminus',
- '\\land': 'and',
- '\\wedge': 'and',
- '\\lor': 'or',
- '\\vee': 'or',
- '\\oplus': 'xor',
- '\\veebar': 'xor',
- '\\lnot': 'not',
- '\\neg': 'not',
- '\\exists': 'exists',
- '\\nexists': '!exists',
- '\\forall': 'forAll',
- '\\backepsilon': 'suchThat',
- '\\therefore': 'therefore',
- '\\because': 'because',
- '\\nabla': 'nabla',
- '\\circ': 'circle',
- '\\ominus': 'ominus',
- '\\odot': 'odot',
- '\\otimes': 'otimes',
- '\\zeta': 'Zeta',
- '\\Gamma': 'Gamma',
- '\\min': 'min',
- '\\max': 'max',
- '\\mod': 'mod',
- '\\lim': 'lim',
- '\\sum': 'sum',
- '\\prod': 'prod',
- '\\int': 'integral',
- '\\iint': 'integral2',
- '\\iiint': 'integral3',
- '\\Re': 'Re',
- '\\gothicCapitalR': 'Re',
- '\\Im': 'Im',
- '\\gothicCapitalI': 'Im',
- '\\binom': 'nCr',
- '\\partial': 'partial',
- '\\differentialD': 'differentialD',
- '\\capitalDifferentialD': 'capitalDifferentialD',
- '\\Finv': 'Finv',
- '\\Game': 'Game',
- '\\wp': 'wp',
- '\\ast': 'ast',
- '\\star': 'star',
- '\\asymp': 'asymp',
- '\\to': 'to',
- '\\gets': 'gets',
- '\\in': 'elementof',
- '\\notin': '!elementof',
- '\\ni': 'ownedby',
- '\\owns': 'ownedby',
- '\\subset': 'subset',
- '\\supset': 'superset',
- '\\complement': 'complement',
- '\\rightarrow': 'shortLogicalImplies',
- '\\leftarrow': 'shortLogicalImpliedBy',
- '\\leftrightarrow': 'shortLogicalEquivalent',
- '\\longrightarrow': 'logicalImplies',
- '\\longleftarrow': 'logicalImpliedBy',
- '\\longleftrightarrow': 'logicalEquivalent',
- '\\Rightarrow': 'shortImplies',
- '\\Leftarrow': 'shortImpliedBy',
- '\\Leftrightarrow': 'shortEquivalent',
- '\\implies': 'implies',
- '\\Longrightarrow': 'implies',
- '\\impliedby': 'impliedBy',
- '\\Longleftarrow': 'impliedBy',
- '\\iff': 'equivalent',
- '\\Longleftrightarrow': 'equivalent',
- },
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- '+': 'add',
- '*': 'multiply',
- '-': 'subtract',
- '/': 'divide',
- '=': 'equal',
- ':=': 'assign',
- '!=': 'ne',
- '?=': 'questeq',
- approx: 'approx',
- congruent: 'congruent',
- similar: 'similar',
- equiv: 'equiv',
- '<': 'lt',
- '>': 'gt',
- '<=': 'le',
- '>=': 'ge',
- '≤': 'le',
- '≥': 'ge',
- '>>': 'gg',
- '<<': 'll',
- '**': 'pow',
- '++': 'increment',
- '--': 'decrement',
- },
- Ti = {
- equal: '%0 = %1',
- ne: '%0 \\ne %1',
- questeq: '%0 \\questeq %1',
- approx: '%0 \\approx %1',
- congruent: '%0 \\cong %1',
- similar: '%0 \\sim %1',
- equiv: '%0 \\equiv %1',
- assign: '%0 := %1',
- lt: '%0 < %1',
- gt: '%0 > %1',
- le: '%0 \\le %1',
- ge: '%0 \\ge %1',
- sin: '\\sin%_%^ %0',
- cos: '\\cos%_%^ %0',
- tan: '\\tan%_%^ %0',
- cot: '\\cot%_%^ %0',
- sec: '\\sec%_%^ %0',
- csc: '\\csc%_%^ %0',
- sinh: '\\sinh %0',
- cosh: '\\cosh %0',
- tanh: '\\tanh %0',
- csch: '\\csch %0',
- sech: '\\sech %0',
- coth: '\\coth %0',
- arcsin: '\\arcsin %0',
- arccos: '\\arccos %0',
- arctan: '\\arctan %0',
- arccot: '\\arcctg %0',
- arcsec: '\\arcsec %0',
- arccsc: '\\arccsc %0',
- arsinh: '\\arsinh %0',
- arcosh: '\\arcosh %0',
- artanh: '\\artanh %0',
- arcsch: '\\arcsch %0',
- arsech: '\\arsech %0',
- arcoth: '\\arcoth %0',
- ln: '\\ln%_%^ %',
- log: '\\log%_%^ %',
- lg: '\\lg %',
- lb: '\\lb %',
- sum: '\\sum%_%^ %0',
- prod: '\\prod%_%^ %0',
- Zeta: '\\zeta%_%^ %',
- Gamma: '\\Gamma %',
- min: '\\min%_%^ %',
- max: '\\max%_%^ %',
- mod: '\\mod%_%^ %',
- lim: '\\lim%_%^ %',
- binom: '\\binom %',
- nabla: '\\nabla %',
- curl: '\\nabla\\times %0',
- div: '\\nabla\\cdot %0',
- floor: '\\lfloor %0 \\rfloor%_%^',
- ceil: '\\lceil %0 \\rceil%_%^',
- abs: '\\left| %0 \\right|%_%^',
- norm: '\\lVert %0 \\rVert%_%^',
- ucorner: '\\ulcorner %0 \\urcorner%_%^',
- lcorner: '\\llcorner %0 \\lrcorner%_%^',
- angle: '\\langle %0 \\rangle%_%^',
- group: '\\lgroup %0 \\rgroup%_%^',
- moustache: '\\lmoustache %0 \\rmoustache%_%^',
- brace: '\\lbrace %0 \\rbrace%_%^',
- 'sqrt[]': '\\sqrt[%^]{%0}',
- sqrt: '\\sqrt{%0}',
- lcm: '\\operatorname{lcm}%',
- gcd: '\\operatorname{gcd}%',
- erf: '\\operatorname{erf}%',
- erfc: '\\operatorname{erfc}%',
- randomReal: '\\operatorname{randomReal}%',
- randomInteger: '\\operatorname{randomInteger}%',
- and: '%0 \\land %1',
- or: '%0 \\lor %1',
- xor: '%0 \\oplus %1',
- not: '%0 \\lnot %1',
- circle: '%0 \\circ %1',
- ast: '%0 \\ast %1',
- star: '%0 \\star %1',
- asymp: '%0 \\asymp %1',
- '/': '\\frac{%0}{%1}',
- Re: '\\Re{%0}',
- Im: '\\Im{%0}',
- factorial: '%0!',
- factorial2: '%0!!',
- },
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- nabla: 740,
- curl: 740,
- partial: 740,
- differentialD: 740,
- capitalDifferentialD: 740,
- '**': 720,
- odot: 710,
- not: 680,
- div: 660,
- solidus: 660,
- '/': 660,
- setminus: 650,
- '%': 640,
- otimes: 410,
- union: 350,
- intersection: 350,
- '*': 390,
- ast: 390,
- '.': 390,
- oplus: 300,
- ominus: 300,
- '+': 275,
- '-': 275,
- '+-': 275,
- '-+': 275,
- circle: 265,
- circledast: 265,
- circledcirc: 265,
- star: 265,
- '..': 263,
- to: 262,
- in: 262,
- '|': 261,
- congruent: 265,
- equiv: 260,
- '=': 260,
- '!=': 255,
- '?=': 255,
- similar: 250,
- approx: 247,
- '<': 245,
- '>': 243,
- '>=': 242,
- '≥': 242,
- '<=': 241,
- complement: 240,
- subset: 240,
- superset: 240,
- elementof: 240,
- '!elementof': 240,
- exists: 230,
- '!exists': 230,
- forall: 230,
- and: 200,
- xor: 195,
- or: 190,
- suchThat: 110,
- ':': 100,
- assign: 80,
- ':=': 80,
- therefore: 70,
- because: 70,
- shortLogicalImplies: 52,
- shortImplies: 51,
- logicalImplies: 50,
- implies: 49,
- shortLogicalImpliedBy: 48,
- shortImpliedBy: 47,
- logicalImpliedBy: 46,
- impliedBy: 45,
- shortLogicalEquivalent: 44,
- shortEquivalent: 43,
- logicalEquivalent: 42,
- equivalent: 41,
- ',': 40,
- ';': 30,
- };
- function Fi(t, e) {
- return Array.isArray(t.arg) ? t.arg[e] : void 0;
- }
- function Di(t) {
- return (t && Li[t]) || -1;
- }
- function zi(t) {
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- }
- function Ei(t) {
- if ('f' === t || 'g' === t) return !0;
- const e = Ti[t];
- return !!e && !!/%[^01_^]?/.test(e);
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- function qi(t) {
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- function Ii(t) {
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- '\\lceil\\rceil': 'ceil',
- '\\vert\\vert': 'abs',
- '\\lvert\\rvert': 'abs',
- '||': 'abs',
- '\\Vert\\Vert': 'norm',
- '\\lVert\\rVert': 'norm',
- '\\ulcorner\\urcorner': 'ucorner',
- '\\llcorner\\lrcorner': 'lcorner',
- '\\langle\\rangle': 'angle',
- '\\lgroup\\rgroup': 'group',
- '\\lmoustache\\rmoustache': 'moustache',
- '\\lbrace\\rbrace': 'brace',
- },
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- '\\dag': 'dagger',
- '\\dagger': 'dagger',
- '\\ddagger': 'dagger2',
- '\\maltese': 'maltese',
- '\\backprime': 'backprime',
- '\\backdoubleprime': 'backprime2',
- '\\prime': 'prime',
- '\\doubleprime': 'prime2',
- '\\$': '$',
- '\\%': '%',
- '\\_': '_',
- '\\degree': 'degree',
- },
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- '+': 'add',
- '-': 'add',
- '*': 'multiply',
- '=': 'equal',
- ',': 'list',
- ';': 'list2',
- and: 'and',
- or: 'or',
- xor: 'xor',
- union: 'union',
- shortLogicalEquivalent: 'logicalEquivalent',
- logicalEquivalent: 'logicalEquivalent',
- shortEquivalent: 'equivalent',
- equivalent: 'equivalent',
- },
- Ki = { ',': 'list', ';': 'list2' };
- function Ni(t) {
- if (Array.isArray(t)) {
- let e = '';
- for (const i of t) e += Ni(i);
- return e;
- }
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- )
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- return e;
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- return '';
- }
- function $i(t) {
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- ? (function(t) {
- let e = Ti[t];
- if (e)
- return e
- .replace('%1', '')
- .replace('%0', '')
- .replace('%', '');
- if (t.length > 1) {
- const i = At.getInfo('\\' + t, 'math');
- !i ||
- (i.fontFamily &&
- 'cmr' !== i.fontFamily &&
- 'ams' !== i.fontFamily) ||
- (e = '\\' + t);
- }
- return e || (e = At.unicodeStringToLatex('math', t)), e;
- })(t.sym) || t.sym
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- function Wi(t) {
- return parseFloat(t.num);
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- return 'object' == typeof t && void 0 !== t.num;
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- function Ui(t) {
- let e = 0;
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- (e = void 0 !== t.num.im ? hs(t.num.im) : 0),
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- function ji(t) {
- return t && void 0 !== t.sup;
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- function Gi(t) {
- return t && void 0 !== t.sub;
- }
- function Zi(t, e, i) {
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- const a = t.atoms[t.index];
- return a && a.type === e && (s = void 0 === i || Ni(a) === i), s;
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- function Xi(t, ...e) {
- const i = { fn: t };
- if (e) {
- const t = [];
- for (const i of e) i && t.push(i);
- t.length > 0 && (i.arg = t);
- }
- return i;
- }
- function Ji(t) {
- return 'number' == typeof t
- ? { num: t.toString() }
- : 'string' == typeof t
- ? { num: t }
- : 'object' == typeof t
- ? { num: t }
- : void 0;
- }
- function Yi(t) {
- if (Hi(t)) {
- const e = Vi(t),
- i = Ui(t);
- return (
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- ? (0 !== e && (t.num.re = (-e).toString()),
- (t.num.im = (-i).toString()))
- : (t.num = (-e).toString()),
- t
- );
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- return Xi('negate', t);
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- return e && 'msubsup' === e.type;
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- function ts(t, e) {
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- i && 'msubsup' === i.type && (i.superscript || i.subscript)
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- i
- ? (void 0 !== i.subscript &&
- (t.ast.sub = rs(i.subscript, e)),
- void 0 !== i.superscript &&
- ('msubsup' === i.type
- ? /['\u2032]|\\prime/.test(Ni(i.superscript))
- ? ((t.index += 1),
- (i = t.atoms[t.index + 1]),
- i &&
- 'msubsup' === i.type &&
- /['\u2032]|\\prime/.test(Ni(i.superscript))
- ? (t.ast.sup = { sym: '″' })
- : ((t.ast.sup = { sym: '′' }),
- (t.index -= 1)))
- : /['\u2033]|\\doubleprime/.test(
- Ni(i.superscript)
- )
- ? (t.ast.sup = { sym: '″' })
- : t.ast && (t.ast.sup = rs(i.superscript, e))
- : (t.ast.sup = rs(i.superscript, e))))
- : (t.index += 1),
- t
- );
- }
- function es(t, e) {
- const i = t.ast;
- if (ss(t, '!!'))
- return (
- (t.index += 1),
- (t.ast = Xi('factorial2', i)),
- es((t = ts(t, e)), e)
- );
- if (ss(t, '++'))
- return (
- (t.index += 1),
- (t.ast = Xi('increment', i)),
- es((t = ts(t, e)), e)
- );
- if (ss(t, '--'))
- return (
- (t.index += 1),
- (t.ast = Xi('decrement', i)),
- es((t = ts(t, e)), e)
- );
- const s = t.atoms[t.index];
- return (
- s &&
- s.latex &&
- Oi[s.latex.trim()] &&
- ((t.ast = Xi(Oi[s.latex.trim()], i)),
- (t = es((t = ts(t, e)), e))),
- t
- );
- }
- function is(t, e, i, s) {
- if (
- ((t.index = t.index || 0),
- 0 === t.atoms.length || t.index >= t.atoms.length)
- )
- return (t.ast = void 0), t;
- const a = t.minPrec;
- t.minPrec = 0;
- let o = t.atoms[t.index];
- if (e) {
- if ('mopen' === o.type && Ni(o) === e)
- (t.index += 1),
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- o &&
- 'mclose' === o.type &&
- Ni(o) === i &&
- (Qi(t) && (t.ast = { group: t.ast }),
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- else if ('textord' === o.type && Ni(o) === e)
- (t.index += 1),
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- o &&
- 'textord' === o.type &&
- Ni(o) === i &&
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- '\\lVert' === e &&
- 'textord' === o.type &&
- '|' === o.latex
- ) {
- if (
- ((o = t.atoms[t.index + 1]),
- o && 'textord' === o.type && '|' === o.latex)
- ) {
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- e &&
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- o.delim === i &&
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- function ss(t, e) {
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- }
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- (t.index += 1),
- Zi(t, 'mbin', '\\times')
- ? ((t.index += 1), (t.ast = 'curl'), t)
- : Zi(t, 'mbin', '\\cdot')
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- : void (t.index -= 1)
- );
- }
- }
- function os(t, e) {
- if (
- ((t.index = t.index || 0),
- (t.ast = void 0),
- 0 === t.atoms.length || t.index >= t.atoms.length)
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- t.minPrec = t.minPrec || 0;
- let i = (function t(e, i) {
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- let s = e.atoms[e.index];
- if ('text' === s.mode) {
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- if ('mbin' === s.type && '-' === a)
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- ) {
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-
- )
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- )
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- (o = !0))
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- (e.index += 1);
- }
- if (
- ((e.ast = a ? Ji(a) : void 0),
- (s = e.atoms[e.index]),
- s && 'genfrac' === s.type && !isNaN(e.ast.num))
- ) {
- const s = e.ast;
- (e = t(e, i)).ast = Xi('add', s, e.ast);
- }
- if (
- s &&
- 'group' === s.type &&
- s.latex &&
- s.latex.startsWith('\\nicefrac')
- ) {
- const s = e.ast;
- (e = t(e, i)).ast = Xi('add', s, e.ast);
- }
- s && 'msubsup' === s.type && (e = ts(e, i)),
- (e = es(e, i));
- } else if ('genfrac' === s.type || 'surd' === s.type)
- (e.ast = s.toAST(i)), (e = es((e = ts(e, i)), i));
- else if ('mord' === s.type || 'mbin' === s.type) {
- if (Ei(a) && !Ii(s)) {
- e.ast = { fn: a };
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- ? (s.arg = o.arg)
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- (e.ast = s);
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- (e.ast = s.toAST(i)),
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- (e.ast = Ji({ im: '1' })),
- (e = ts(e));
- e = es(e, i);
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- if (
- !Ii(s) &&
- !At.RIGHT_DELIM[
- s.latex ? s.latex.trim() : s.body
- ]
- )
- if (Ei(a)) {
- e.ast = { fn: a };
- const s = (e = ts(e, i)).ast;
- (e.index += 1),
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- (e.ast = s),
- (e = es(e, i));
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- (e.ast = s.toAST(i)),
- void 0 === s.superscript &&
- (e.index += 1),
- (e = es((e = ts(e, i)), i));
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- if (
- (/^\\(mathop|operatorname|operatorname\*)/.test(
- s.latex
- ) ||
- Ei(a)) &&
- !Ii(s)
- )
- if (
- ((e.ast = {
- fn: /^\\(mathop|operatorname|operatorname\*)/.test(
- s.latex
- )
- ? Ni(s.body)
- : a,
- }),
- ji((e = ts(e, i)).ast))
- ) {
- const s = {
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- cos: 'arccos',
- tan: 'arctan',
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- sec: 'arcsec',
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- sinh: 'arsinh',
- cosh: 'arcosh',
- tanh: 'artanh',
- csch: 'arcsch',
- sech: 'arsech',
- coth: 'arcoth',
- };
- if (-1 === Wi(e.ast.sup) && s[a])
- e.ast = Xi(s[a], t(e, i).ast);
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- const s = e.ast;
- (s.arg = [t(e, i).ast]), (e.ast = s);
- }
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- const s = e.ast,
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- ? (s.arg = a.arg)
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- (e.ast = s);
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- (e.index += 1), (e.ast = s.toAST(i));
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- if ('error' === s.type)
- return (
- (e.index += 1),
- (e.ast = { error: s.latex }),
- e
- );
- }
- }
- if (void 0 === e.ast) {
- const t = is(e, '(', ')', i) || is(e, null, null, i);
- t
- ? (e = t)
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- ('placeholder' === s.type
- ? (e.ast = Ji(0))
- : ((e.ast = { text: '?' }),
- (e.ast.error =
- "Unexpected token '" + s.type + "'"),
- s.latex
- ? (e.ast.latex = s.latex)
- : s.body &&
- s.toLatex &&
- (e.ast.latex = s.toLatex())),
- (e.index += 1));
- }
- if (
- ((s = e.atoms[e.index]),
- s &&
- ('mord' === s.type ||
- 'surd' === s.type ||
- 'mop' === s.type ||
- 'mopen' === s.type ||
- 'sizeddelim' === s.type ||
- 'leftright' === s.type))
- ) {
- if ('sizeddelim' === s.type)
- for (const t in At.RIGHT_DELIM)
- if (s.delim === At.RIGHT_DELIM[t])
- return (e.index += 1), e;
- if (
- ('mord' === s.type ||
- 'textord' === s.type ||
- 'mop' === s.type) &&
- Ii(s)
- )
- return e;
- const a = e.ast;
- (e.ast = {}),
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- ? (Ei(a.fn) && void 0 === a.arg) ||
- (Array.isArray(a.arg) && 0 === a.arg.length)
- ? 'list2' === e.ast.fn ||
- 'list' === e.ast.fn
- ? (e.ast = Xi(a.fn, e.ast.arg))
- : (e.ast = Xi('multiply', a, e.ast))
- : 'multiply' === e.ast.fn
- ? e.ast.arg.unshift(a)
- : 0 === Ui(a) &&
- 0 !== Vi(a) &&
- 1 === Ui(e.ast) &&
- 0 === Vi(e.ast)
- ? (e.ast = Ji({ im: Vi(a).toString() }))
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- return e;
- })(t, e).ast,
- s = !1;
- const a = t.minPrec;
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- let r, l;
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- ) {
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- if (
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- )
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- (t.atoms[t.index] &&
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- 'msubsup' === t.atoms[t.index].type)
- ) {
- t.ast = {};
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- if (
- ((i = Xi('bind', i)),
- s && 'equal' === s.fn && i.arg)
- )
- i.arg.push(Fi(s, 0)), i.arg.push(Fi(s, 1));
- else if (
- s &&
- i.arg &&
- ('list' === s.fn || 'list2' === s.fn)
- ) {
- let t = { sym: 'x' };
- for (let e = 0; e < s.arg.length; e++)
- 'equal' === s.arg[e].fn
- ? ((t = Fi(s.arg[e], 0)),
- i.arg.push(t),
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- : (i.arg.push(t), i.arg.push(s.arg[e]));
- } else
- s && (i.arg.push({ sym: 'x' }), i.arg.push(s));
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- else {
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- let o = Ki[a];
- o && i && i.fn !== o && (i = Xi(o, i)),
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- ? i && i.arg && 'add' === i.fn
- ? void 0 !== s && i.arg.push(Yi(s))
- : (i =
- i && 'subtract' === i.fn
- ? Xi(
- 'add',
- Fi(i, 0),
- Yi(Fi(i, 1)),
- Yi(s)
- )
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- ji(i) ||
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- ji(s) ||
- (void 0 !== s.num.re &&
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- : {
- num: {
- re: i.num,
- im: (-parseFloat(
- s.num.im
- )).toString(),
- },
- })
- : ((o = Ri[a]),
- 'add' === o && i && 'subtract' === i.fn
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- 'add',
- Fi(i, 0),
- Yi(Fi(i, 1)),
- s
- ))
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- Hi(i) &&
- !ji(i) &&
- s &&
- 10 === Wi(s) &&
- Hi(s.sup)
- ? Ji(
- Wi(i) *
- Math.pow(
- 10,
- Wi(s.sup)
- )
- )
- : 'add' === o &&
- Hi(i) &&
- !ji(i) &&
- s &&
- 0 !== Ui(s) &&
- !ji(s)
- ? {
- num: {
- re: i.num,
- im: s.num.im,
- },
- }
- : Xi(o || _i[a] || a, i, s)));
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- }
- }
- return (t.ast = i), t;
- }
- function ns(t) {
- if (!t) return [];
- let e;
- if (Array.isArray(t)) {
- e = [];
- for (const i of t) {
- const t = ns(i);
- e = e.concat(t);
- }
- } else {
- if ('spacing' === t.type) return [];
- 'first' === t.type || 'box' === t.type
- ? (e = ns(t.body))
- : (t.body && Array.isArray(t.body) && (t.body = ns(t.body)),
- t.superscript &&
- Array.isArray(t.superscript) &&
- (t.superscript = ns(t.superscript)),
- t.subscript &&
- Array.isArray(t.subscript) &&
- (t.subscript = ns(t.subscript)),
- t.index &&
- Array.isArray(t.index) &&
- (t.index = ns(t.index)),
- t.denom &&
- Array.isArray(t.denom) &&
- (t.denom = ns(t.denom)),
- t.numer &&
- Array.isArray(t.numer) &&
- (t.numer = ns(t.numer)),
- t.array &&
- Array.isArray(t.array) &&
- (t.array = t.array.map(t => t.map(t => ns(t)))),
- (e = [t]));
- }
- return e;
- }
- function rs(t, e) {
- return (function(t, e) {
- (t.index = t.index || 0), (t.ast = void 0);
- const i = [];
- for (; t.atoms[t.index]; )
- if ('text' === t.atoms[t.index].mode) {
- let e = '';
- for (
- ;
- t.atoms[t.index] &&
- 'text' === t.atoms[t.index].mode;
-
- )
- (e += t.atoms[t.index].body), (t.index += 1);
- i.push(e);
- } else {
- const s = os(t, e).ast;
- if (!s) return;
- i.push(s);
- }
- return i.length > 1 ? Xi('text', ...i) : i[0] || void 0;
- })({ atoms: ns(t) }, e);
- }
- function ls(t) {
- const e = Array.prototype.slice.call(arguments);
- e.shift(), (t = t || '.. ');
- let i = '';
- if (e.length > 0) {
- '.' !== t[0] && (i += t[0]);
- let s = '';
- for (const a of e) (i += s + a), (s = t[2]);
- '.' !== t[1] && (i += t[1]);
- }
- return i;
- }
- function cs(t, e) {
- const i = t.length;
- t = t.substr(0, e.precision - 2);
- for (let i = 0; i < t.length - 16; i++) {
- const s = t.substr(0, i);
- for (let a = 0; a < 17; a++) {
- const o = t.substr(i, a + 1),
- n = Math.floor((t.length - s.length) / o.length);
- if (n > 1 && (s + o.repeat(n + 1)).startsWith(t))
- return '0' === o
- ? s.replace(/(\d{3})/g, '$1' + e.groupSeparator)
- : s.replace(/(\d{3})/g, '$1' + e.groupSeparator) +
- e.beginRepeatingDigits +
- o.replace(
- /(\d{3})/g,
- '$1' + e.groupSeparator
- ) +
- e.endRepeatingDigits;
- }
- }
- return (
- i !== t.length && (t += '\\ldots'),
- t.replace(/(\d{3})/g, '$1' + e.groupSeparator)
- );
- }
- function hs(t) {
- return parseFloat(parseFloat(t).toPrecision(15));
- }
- function ds(t, e) {
- let i = '';
- if ('number' == typeof e.precision) {
- if ('number' != typeof t) {
- let i = '',
- s = '';
- if (
- ('-' === t[0]
- ? ((i = '-'), (t = t.substr(1)))
- : '+' === t[0] && (t = t.substr(1)),
- t.indexOf('.') >= 0)
- ) {
- const a = t.match(/(\d*).(\d*)([e|E]([-+]?[0-9]*))?/),
- o = a[1],
- n = a[2].substring(
- 0,
- Math.min(e.precision - o.length, a[2].length)
- );
- if (((s = a[4] || ''), '0' === o)) {
- let s = 0;
- for (; '0' === n[s] && s < n.length; ) s += 1;
- let a = '';
- if (s <= 4)
- (a = '0' + e.decimalMarker),
- (a += n.substr(0, s)),
- (a += cs(t.substr(a.length), e));
- else if (s + 1 >= e.precision) (a = '0'), (i = '');
- else {
- a = t[s];
- const i = cs(t.substr(s + 1), e);
- i && (a += e.decimalMarker + i);
- }
- '0' !== a &&
- (t.length - 1 > e.precision &&
- !a.endsWith('}') &&
- !a.endsWith('\\ldots') &&
- (a += '\\ldots'),
- s > 4 &&
- ((a += e.exponentProduct),
- e.exponentMarker
- ? (a +=
- e.exponentMarker +
- (1 - s).toString())
- : (a +=
- '10^{' +
- (1 - s).toString() +
- '}'))),
- (t = a);
- } else {
- t = o.replace(
- /\B(?=(\d{3})+(?!\d))/g,
- e.groupSeparator
- );
- const i = cs(n, e);
- i && (t += e.decimalMarker + i);
- }
- } else if (t.length > e.precision) {
- const i = t.length;
- let s = t[0];
- const a = cs(t.substr(2), e);
- a &&
- ((s += e.decimalMarker + a),
- '}' !== s[s.length - 1] && (s += '\\ldots')),
- '1' !== s ? (s += e.exponentProduct) : (s = ''),
- e.exponentMarker
- ? (s += e.exponentMarker + (i - 2).toString())
- : (s += '10^{' + (i - 2).toString() + '}'),
- (t = s);
- } else
- t = t.replace(
- /\B(?=(\d{3})+(?!\d))/g,
- e.groupSeparator
- );
- return (
- s &&
- (s = e.exponentMarker
- ? e.exponentMarker + s
- : e.exponentProduct + ' 10^{' + s + '}'),
- i + t + s
- );
- }
- t = hs(t);
- }
- if ('engineering' === e.scientificNotation)
- if (0 === t) i = '0';
- else {
- const s = Math.abs(t);
- let a = Math.round(Math.log10(s));
- (a -= a % 3), s < 1e3 && (a = 0);
- let o = s / Math.pow(10, a);
- const n = o.toString().match(/^(.*)\.(.*)$/);
- n && n[1] && n[2] && (o = n[1] + e.decimalMarker + n[2]),
- e.groupSeparator && (o = cs(o.toExponential(), e)),
- (a =
- 0 === a
- ? ''
- : e.exponentMarker
- ? e.exponentMarker + a
- : e.exponentProduct + ' 10^{' + a + '}'),
- (i = (t < 0 ? '-' : '') + o + a);
- }
- else {
- const s = 'string' == typeof t ? t : t.toString();
- let a,
- o,
- n,
- r = s.match(/^(.*)[e|E]([-+]?[0-9]*)$/i);
- (a = s),
- (n = ''),
- r &&
- r[1] &&
- r[2] &&
- ((a = r[1]),
- (o = e.exponentMarker
- ? e.exponentMarker + r[2]
- : e.exponentProduct + ' 10^{' + r[2] + '}')),
- (r = a.match(/^(.*)\.(.*)$/)),
- r && r[1] && r[2] && ((a = r[1]), (n = r[2])),
- e.groupSeparator &&
- ((a = a.replace(
- /\B(?=(\d{3})+(?!\d))/g,
- e.groupSeparator
- )),
- (n = cs(n, e))),
- n && (n = e.decimalMarker + n),
- (i = a + n + (o || ''));
- }
- return i;
- }
- (te.MathAtom.prototype.toAST = function(t) {
- let e,
- i,
- s,
- a,
- o = {},
- r = '',
- l = {
- bb: 'double-struck',
- cal: 'script',
- scr: 'script',
- frak: 'fraktur',
- cmrss: 'sans-serif',
- cmrtt: 'monospace',
- }[this.baseFontFamily || this.fontFamily],
- c = '';
- 'b' === this.fontSeries && (c += 'bold'),
- 'it' === this.fontShape && (c += 'italic');
- const h = this.latex ? this.latex.trim() : null;
- switch (this.type) {
- case 'root':
- case 'group':
- this.latex && this.latex.startsWith('\\nicefrac')
- ? ((e = this.latex
- .slice(9)
- .match(/({.*}|[^}])({.*}|[^}])/)),
- e
- ? ((i =
- 1 === e[1].length
- ? e[1]
- : e[1].substr(1, e[1].length - 2)),
- (i = he.parseTokens(
- n(i),
- 'math',
- null,
- t.macros
- )),
- (s =
- 1 === e[2].length
- ? e[2]
- : e[2].substr(1, e[2].length - 2)),
- (s = he.parseTokens(
- n(s),
- 'math',
- null,
- t.macros
- )),
- (o = Xi('divide', rs(i, t), rs(s, t))))
- : (o.fn = 'divide'))
- : (o.group = rs(this.body, t));
- break;
- case 'genfrac':
- o = Xi(
- 'divide',
- rs(this.numer, t),
- this.denom &&
- this.denom[0] &&
- 'placeholder' === this.denom[0].type
- ? Ji(1)
- : rs(this.denom, t)
- );
- break;
- case 'surd':
- o = this.index
- ? Xi(
- 'pow',
- rs(this.body, t),
- Xi('divide', 1, rs(this.index, t))
- )
- : Xi('sqrt', rs(this.body, t));
- break;
- case 'rule':
- break;
- case 'line':
- case 'overlap':
- case 'accent':
- case 'overunder':
- break;
- case 'mord':
- case 'textord':
- case 'mbin':
- (e = h
- ? h.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/)
- : void 0),
- e
- ? (r = String.fromCodePoint(parseInt(e[1], 16)))
- : ((r = qi(Ni(this))),
- r.length > 0 &&
- '\\' === r.charAt(0) &&
- 'string' == typeof this.body &&
- (r = this.body)),
- (a = At.mathVariantToUnicode(r, l, c)
- .replace(/[\\]/g, '\\\\')
- .replace(/["]/g, '\\"')
- .replace(/[\b]/g, '\\b')
- .replace(/[\f]/g, '\\f')
- .replace(/[\n]/g, '\\n')
- .replace(/[\r]/g, '\\r')
- .replace(/[\t]/g, '\\t')),
- a !== r
- ? ((o = { sym: a }), (l = 'normal'))
- : (o = { sym: r });
- break;
- case 'minner':
- case 'mop':
- break;
- case 'box':
- o = rs(this.body, t);
- break;
- case 'enclose':
- break;
- case 'array':
- if ('cardinality' === this.env.name)
- o = Xi('card', rs(this.array, t));
- else if (
- /array|matrix|pmatrix|bmatrix/.test(this.env.name)
- ) {
- o = { fn: 'array', args: [] };
- for (const e of this.array)
- o.args.push(e.map(e => rs(e, t)));
- } else if ('cases' === this.env.name) {
- o = { fn: 'cases', args: [] };
- for (const e of this.array)
- if (e[0]) {
- const i = [];
- i.push(rs(e[0], t));
- let s = rs(e[1], t);
- s &&
- 'text' === s.fn &&
- s.arg &&
- /^(if|when|for)$/i.test(s.arg[0].trim()) &&
- (s = s.arg.filter(
- t => 'string' != typeof t
- )),
- i.push(s || {}),
- o.args.push(i);
- }
- }
- break;
- case 'spacing':
- case 'space':
- case 'mathstyle':
- break;
- default:
- o = void 0;
- }
- return (
- o && l && 'normal' !== l && (o.variant = l),
- o &&
- 'string' == typeof this.cssClass &&
- (o.class = this.cssClass),
- o && 'string' == typeof this.cssId && (o.id = this.cssId),
- o
- );
- }),
- (te.toAST = function(t, e) {
- return rs(t, e);
- });
- var ps = function t(e, i) {
- const s = Object.assign(
- {
- precision: 14,
- decimalMarker: '.',
- groupSeparator: '\\, ',
- product: '\\cdot ',
- exponentProduct: '\\cdot ',
- exponentMarker: '',
- arcSeparator: '\\,',
- scientificNotation: 'auto',
- beginRepeatingDigits: '\\overline{',
- endRepeatingDigits: '}',
- },
- i
- );
- let a = '';
- if (void 0 === e) return '';
- if (('string' == typeof e && (e = JSON.parse(e)), e.latex))
- a = e.latex;
- else if (Hi(e)) {
- const i = Wi(e);
- if (i === -1 / 0) a = '-\\infty ';
- else if (i === 1 / 0) a = '\\infty ';
- else if (
- 'object' != typeof e.num ||
- ('string' != typeof e.num.re && 'string' != typeof e.num.im)
- )
- a = isNaN(i) ? '\\text{NaN}' : ds(e.num, s);
- else {
- const t = Vi(e),
- i = Ui(e);
- isNaN(t) || isNaN(i)
- ? (a = '\\text{NaN}')
- : Math.abs(i) <= Number.EPSILON &&
- Math.abs(t) <= Number.EPSILON
- ? (a = '0')
- : (Math.abs(t) > Number.EPSILON && (a = ds(t, s)),
- Math.abs(i) > Number.EPSILON &&
- (Math.abs(t) > Number.EPSILON &&
- (a += i > 0 ? '+' : ''),
- (a +=
- (1 !== Math.abs(i) ? ds(i, s) : '') +
- '\\imaginaryI ')));
- }
- ji(e) && (a += '^{' + t(e.sup, s) + '}'),
- Gi(e) && (a += '_{' + t(e.sub, s) + '}');
- } else if (e.group)
- (a = t(e.group, s)),
- Hi(e.group) || $i(e.group)
- ? 0 !== Ui(e.group) && (a = ls(e.fence || '(),', a))
- : (a = ls(e.fence || '(),', a)),
- ji(e) && (a += '^{' + t(e.sup, s) + '}'),
- Gi(e) && (a += '_{' + t(e.sub, s) + '}');
- else if (e.fn)
- if ('bind' === e.fn) {
- if (
- ((a = t(Fi(e, 0), s) + '|_{'),
- e.arg && 2 === e.arg.length)
- )
- a += t(Fi(e, 1));
- else {
- let i = '';
- for (let s = 1; s < e.arg.length; s += 2)
- (a += i + t(Fi(e, s)) + ' = ' + t(Fi(e, s + 1))),
- (i = ', ');
- }
- a += '}';
- } else if ('divide' === e.fn)
- a =
- '\\frac{' +
- t(Fi(e, 0), s) +
- '}{' +
- t(Fi(e, 1), s) +
- '}';
- else if ('negate' === e.fn) a = '-' + t(Fi(e, 0), s);
- else if ('subtract' === e.fn)
- a = t(Fi(e, 0), s) + ' - ' + t(Fi(e, 1), s);
- else if (
- ('add' !== e.fn && 'multiply' !== e.fn) ||
- !Array.isArray(e.arg)
- )
- if ('list' === e.fn || 'list2' === e.fn) {
- const i = [];
- for (const a of e.arg) i.push(t(a, s));
- a = i.join('list2' === e.fn ? '; ' : ', ');
- } else if (
- 'pow' === e.fn &&
- Array.isArray(e.arg) &&
- e.arg.length >= 2
- )
- (a = t(Fi(e, 0), s)),
- Hi(Fi(e, 0)) ||
- $i(Fi(e, 0)) ||
- (a = ls(e.fence || '(),', a)),
- (a += '^{' + t(Fi(e, 1), s) + '}');
- else if ('equal' === e.fn && e.arg && e.arg.length > 2)
- a = e.arg.map(e => t(e, s)).join(' = ');
- else {
- const i = (function(t) {
- let e = Ti[t];
- return (
- e ||
- (e =
- t.length > 1
- ? '\\operatorname{' + t + '}%^%_ %'
- : t + '%^%_ %'),
- e
- );
- })(e.fn);
- a = i;
- let o = '';
- if (
- /%(?![01_^])/.test(i) &&
- Array.isArray(e.arg) &&
- e.arg.length > 1
- )
- a += ls(
- e.fence || '(),',
- ...e.arg.map(e => t(e, s))
- );
- else if (Array.isArray(e.arg) && e.arg.length > 0) {
- const n = t(Fi(e, 0), s),
- r = t(Fi(e, 1), s),
- l = [...e.arg];
- /%0/.test(i) &&
- ((a = a.replace('%0', n)), l.shift()),
- /%1/.test(i) &&
- ((a = a.replace('%1', r)), l.shift()),
- l.length > 0 &&
- (o = ls(
- e.fence || '(),',
- ...l.map(e => t(e, s))
- ));
- } else o = ls(e.fence || '(),', '');
- (a = ji(e)
- ? a.replace('%^', '^{' + t(e.sup, s) + '}')
- : a.replace('%^', '')),
- (a = Gi(e)
- ? a.replace('%_', '_{' + t(e.sub, s) + '}')
- : a.replace('%_', '')),
- (a = a.replace(/%(?![01_^])/, o)),
- (a = a.replace('%0', '').replace('%1', ''));
- }
- else {
- const i = [];
- for (const a of e.arg)
- 'add' === a.fn || 'subtract' === a.fn
- ? i.push(ls('() ', t(a, s)))
- : 0 !== Vi((o = a)) && 0 !== Ui(o)
- ? i.push(ls('() ', t(a, s)))
- : ji(e) && 0 !== Ui(a) && 1 !== Ui(a)
- ? i.push(ls('() ', t(a, s)))
- : i.push(t(a, s));
- if ('multiply' === e.fn)
- a =
- !e.arg ||
- 2 !== e.arg.length ||
- (!Hi(e.arg[0]) && 'divide' !== e.arg[0].fn) ||
- (Hi(e.arg[1]) &&
- (0 !== Vi(e.arg[1]) || 1 !== Ui(e.arg[1])))
- ? i.join(' \\times ')
- : i[0] + i[1];
- else if (e.arg && 1 === e.arg.length)
- a =
- 'negate' === e.arg[0].fn ||
- (Hi(e.arg[0]) && Wi(e.arg[0]) < 0)
- ? i[0]
- : '+' + i[0];
- else {
- a = i[0];
- for (let t = 1; t < e.arg.length; t++)
- 'negate' === e.arg[t].fn ||
- (Hi(e.arg[t]) && Wi(e.arg[t]) < 0)
- ? (a += i[t])
- : (a += ' + ' + i[t]);
- }
- }
- else if ('string' == typeof e.sym) {
- a = $i(e);
- let i = a.match(/^&#x([0-9a-f]+);$/i);
- i && i[1]
- ? (a = String.fromCodePoint(parseInt(i[1], 16)))
- : ((i = a.match(/^&#([0-9]+);$/i)),
- i && i[1] && (a = String.fromCodePoint(parseInt(i[1])))),
- 'string' == typeof e.variant &&
- (a =
- '\\' +
- {
- normal: 'mathrm',
- 'double-struck': 'mathbb',
- bold: 'mathbf',
- fraktur: 'mathfrak',
- script: 'mathscr',
- 'sans-serif': 'mathsf',
- monospace: 'mathtt',
- }[e.variant] +
- '{' +
- a +
- '}'),
- ji(e) && (a += '^{' + t(e.sup, s) + '}'),
- Gi(e) && (a += '_{' + t(e.sub, s) + '}');
- } else 'string' == typeof e.text && (a = '\\text{' + e.text + '}');
- var o;
- return (
- 'string' == typeof e.error &&
- (a = '\\bbox[#F56165]{' + a + '}'),
- a
- );
- };
- const ms = {
- '\\alpha': 'alpha ',
- '\\mu': 'mew ',
- '\\sigma': 'sigma ',
- '\\pi': 'pie ',
- '\\imaginaryI': 'eye ',
- '\\sum': 'Summation ',
- '\\prod': 'Product ',
- a: 'a',
- A: 'capital A',
- '+': 'plus ',
- '-': 'minus ',
- ';': ' semi-colon ',
- ',': ' comma ',
- '|': 'Vertical bar',
- '(': 'Open paren. ',
- ')': ' Close paren. ',
- '=': 'equals ',
- '<': 'is less than ',
- '\\lt': 'is less than ',
- '<=': 'is less than or equal to ',
- '\\le': 'is less than or equal to ',
- '\\gt': 'is greater than ',
- '>': 'is greater than ',
- '\\ge': 'is greater than or equal to ',
- '\\geq': 'is greater than or equal to ',
- '\\leq': 'is less than or equal to ',
- '!': 'factorial ',
- '\\sin': 'sine ',
- '\\cos': 'cosine ',
- '': '',
- '−': 'minus ',
- ':': ' such that ',
- '\\colon': ' such that ',
- '\\hbar': 'etch bar ',
- '\\iff':
- 'if, and only if, ',
- '\\Longleftrightarrow':
- 'if, and only if, ',
- '\\land': 'and ',
- '\\lor': 'or ',
- '\\neg': 'not ',
- '\\div': 'divided by ',
- '\\forall': 'for all ',
- '\\exists': 'there exists ',
- '\\nexists': 'there does not exists ',
- '\\in': 'element of ',
- '\\N':
- 'the set n',
- '\\C':
- 'the set c',
- '\\Z':
- 'the set z',
- '\\Q':
- 'the set q',
- '\\infty': 'infinity ',
- '\\nabla': 'nabla ',
- '\\partial': 'partial derivative of ',
- '\\cdots': 'dot dot dot ',
- '\\Rightarrow': 'implies ',
- '\\lbrace': 'open brace',
- '\\{': 'open brace',
- '\\rbrace': 'close brace',
- '\\}': 'close brace',
- '\\langle':
- 'left angle bracket',
- '\\rangle':
- 'right angle bracket',
- '\\lfloor': 'open floor',
- '\\rfloor': 'close floor',
- '\\lceil': 'open ceiling',
- '\\rceil':
- 'close ceiling',
- '\\vert': 'vertical bar',
- '\\mvert': 'divides',
- '\\lvert':
- 'left vertical bar',
- '\\rvert':
- 'right vertical bar',
- '\\lbrack':
- ' open square bracket ',
- '\\rbrack':
- ' close square bracket ',
- mm: 'millimeters',
- cm: 'centimeters',
- km: 'kilometers',
- kg: 'kilograms',
- };
- function us(t) {
- let e = 0;
- if (t && Array.isArray(t))
- for (const i of t) 'first' !== i.type && (e += 1);
- return 1 === e;
- }
- function fs(t) {
- let e = '';
- if (t && Array.isArray(t))
- for (const i of t)
- 'first' !== i.type &&
- 'string' == typeof i.body &&
- (e += i.body);
- return e;
- }
- function gs(t, e, i, s) {
- e = e.split(' ');
- for (const a of e) {
- const e = a.match(/(.*):(.*)/);
- if (e) {
- const a = s || {};
- 'active' === e[2] ? (a.passive = !1) : (a[e[2]] = !0),
- t.addEventListener(e[1], i, a);
- } else t.addEventListener(a, i, s);
- }
- }
- function ys(t, e, i, s) {
- e = e.split(' ');
- for (const a of e) {
- const e = a.match(/(.*):(.*)/);
- if (e) {
- const a = s || {};
- 'active' === e[2] ? (a.passive = !1) : (a[e[2]] = !0),
- t.removeEventListener(e[1], i, a);
- } else t.removeEventListener(a, i, s);
- }
- }
- function bs(t, e) {
- let i = document.getElementById(t);
- return (
- i
- ? i.setAttribute(
- 'data-refcount',
- parseInt(i.getAttribute('data-refcount')) + 1
- )
- : ((i = document.createElement('div')),
- i.setAttribute('aria-hidden', 'true'),
- i.setAttribute('data-refcount', '1'),
- (i.className = e),
- (i.id = t),
- document.body.appendChild(i)),
- i
- );
- }
- function xs(t) {
- if (!t) return null;
- const e = parseInt(t.getAttribute('data-refcount'));
- return (
- e && 1 !== e
- ? t.setAttribute('data-refcount', e - 1)
- : t.remove(),
- t
- );
- }
- function ks(t) {
- return t.element && t.element.mathfield === t;
- }
- (te.toSpeakableFragment = function(t, e) {
- function i(t) {
- return '' + t + '';
- }
- if (!t) return '';
- let s = '';
- if (
- (t.id &&
- 'math' === e.speechMode &&
- (s += ''),
- Array.isArray(t))
- ) {
- let a = !1,
- o = !1;
- for (let n = 0; n < t.length; n++)
- 'text' !== t[n].mode && (o = !1),
- n < t.length - 2 &&
- 'mopen' === t[n].type &&
- 'mclose' === t[n + 2].type &&
- 'mord' === t[n + 1].type
- ? ((s += ' of '),
- (s += i(te.toSpeakableFragment(t[n + 1], e))),
- (n += 2))
- : 'text' === t[n].mode
- ? o
- ? (s += t[n].body ? t[n].body : ' ')
- : ((o = !0),
- (s += te.toSpeakableFragment(t[n], e)))
- : 'mord' === t[n].type &&
- /[0123456789,.]/.test(t[n].body)
- ? a
- ? (s += t[n].body)
- : ((a = !0),
- (s += te.toSpeakableFragment(t[n], e)))
- : ((a = !1),
- (s += te.toSpeakableFragment(t[n], e)));
- } else if ('text' === t.mode) s += t.body;
- else {
- let a = '',
- o = '',
- n = '',
- r = !1;
- switch (t.type) {
- case 'group':
- case 'root':
- s += te.toSpeakableFragment(t.body, e);
- break;
- case 'genfrac':
- if (
- ((a = te.toSpeakableFragment(t.numer, e)),
- (o = te.toSpeakableFragment(t.denom, e)),
- us(t.numer) && us(t.denom))
- ) {
- const e = {
- '1/2': ' half ',
- '1/3': ' one third ',
- '2/3': ' two third',
- '1/4': ' one quarter ',
- '3/4': ' three quarter ',
- '1/5': ' one fifth ',
- '2/5': ' two fifths ',
- '3/5': ' three fifths ',
- '4/5': ' four fifths ',
- '1/6': ' one sixth ',
- '5/6': ' five sixths ',
- '1/8': ' one eight ',
- '3/8': ' three eights ',
- '5/8': ' five eights ',
- '7/8': ' seven eights ',
- '1/9': ' one ninth ',
- '2/9': ' two ninths ',
- '4/9': ' four ninths ',
- '5/9': ' five ninths ',
- '7/9': ' seven ninths ',
- '8/9': ' eight ninths ',
- }[fs(t.numer) + '/' + fs(t.denom)];
- e ? (s = e) : (s += a + ' over ' + o);
- } else
- s +=
- ' the fraction ' +
- a +
- ', over ' +
- o +
- '. End fraction.';
- break;
- case 'surd':
- if (
- ((n = te.toSpeakableFragment(t.body, e)), t.index)
- ) {
- let i = te.toSpeakableFragment(t.index, e);
- i = i.trim();
- const a = i.replace(//g, '');
- s +=
- '3' === a
- ? ' the cube root of ' +
- n +
- '. End cube root'
- : 'n' === a
- ? ' the nth root of ' +
- n +
- '. End root'
- : ' the root with index: ' +
- i +
- ', of ' +
- n +
- '. End root';
- } else
- us(t.body)
- ? (s += ' the square root of ' + n + ' , ')
- : (s +=
- ' the square root of ' +
- n +
- '. End square root');
- break;
- case 'accent':
- break;
- case 'leftright':
- (s += ms[t.leftDelim] || t.leftDelim),
- (s += te.toSpeakableFragment(t.body, e)),
- (s += ms[t.rightDelim] || t.rightDelim);
- break;
- case 'line':
- case 'rule':
- case 'overunder':
- case 'overlap':
- break;
- case 'placeholder':
- s += 'placeholder ' + t.body;
- break;
- case 'delim':
- case 'sizeddelim':
- case 'mord':
- case 'minner':
- case 'mbin':
- case 'mrel':
- case 'mpunct':
- case 'mopen':
- case 'mclose':
- case 'textord': {
- const i = t.latex ? t.latex.trim() : '';
- if (
- '\\mathbin' === i ||
- '\\mathrel' === i ||
- '\\mathopen' === i ||
- '\\mathclose' === i ||
- '\\mathpunct' === i ||
- '\\mathord' === i ||
- '\\mathinner' === i
- ) {
- s = te.toSpeakableFragment(t.body, e);
- break;
- }
- let a = t.body,
- o = t.latex;
- if (
- (('delim' !== t.type && 'sizeddelim' !== t.type) ||
- (a = o = t.delim),
- 'text' === e.speechMode)
- )
- s += a;
- else {
- if (
- ('mbin' === t.type &&
- (s += ''),
- a)
- ) {
- const t = ms[a] || (o ? ms[o.trim()] : '');
- if (t) s += ' ' + t;
- else {
- const t = o
- ? (function(t) {
- let e = Je.NOTES[t];
- return (
- e ||
- '\\' !== t.charAt(0) ||
- (e =
- ' ' +
- t.replace('\\', '') +
- ' '),
- Array.isArray(e) &&
- (e = e[0]),
- e
- );
- })(o.trim())
- : '';
- s +=
- t ||
- (function(t) {
- let i = '';
- return (
- e.textToSpeechMarkup
- ? /[a-z]/.test(t)
- ? (i +=
- ' ' +
- t +
- '')
- : /[A-Z]/.test(t)
- ? (i +=
- 'capital ' +
- t.toLowerCase())
- : (i += t)
- : /[a-z]/.test(t)
- ? (i +=
- " '" +
- t.toUpperCase() +
- "'")
- : /[A-Z]/.test(t)
- ? (i +=
- " 'capital " +
- t.toUpperCase() +
- "'")
- : (i += t),
- i
- );
- })(a);
- }
- } else s += te.toSpeakableFragment(t.body, e);
- 'mbin' === t.type && (s += '');
- }
- break;
- }
- case 'mop':
- if ('' !== t.body) {
- const a = t.latex ? t.latex.trim() : '';
- if ('\\sum' === a)
- if (t.superscript && t.subscript) {
- let i = te.toSpeakableFragment(
- t.superscript,
- e
- );
- i = i.trim();
- let a = te.toSpeakableFragment(
- t.subscript,
- e
- );
- (a = a.trim()),
- (s +=
- ' the summation from ' +
- a +
- ' to ' +
- i +
- ' of '),
- (r = !0);
- } else if (t.subscript) {
- let i = te.toSpeakableFragment(
- t.subscript,
- e
- );
- (i = i.trim()),
- (s +=
- ' the summation from ' +
- i +
- ' of '),
- (r = !0);
- } else s += ' the summation of';
- else if ('\\prod' === a)
- if (t.superscript && t.subscript) {
- let i = te.toSpeakableFragment(
- t.superscript,
- e
- );
- i = i.trim();
- let a = te.toSpeakableFragment(
- t.subscript,
- e
- );
- (a = a.trim()),
- (s +=
- ' the product from ' +
- a +
- ' to ' +
- i +
- ' of '),
- (r = !0);
- } else if (t.subscript) {
- let i = te.toSpeakableFragment(
- t.subscript,
- e
- );
- (i = i.trim()),
- (s +=
- ' the product from ' +
- i +
- ' of '),
- (r = !0);
- } else s += ' the product of ';
- else if ('\\int' === a)
- if (t.superscript && t.subscript) {
- let a = te.toSpeakableFragment(
- t.superscript,
- e
- );
- a = a.trim();
- let o = te.toSpeakableFragment(
- t.subscript,
- e
- );
- (o = o.trim()),
- (s +=
- ' the integral from ' +
- i(o) +
- ' to ' +
- i(a) +
- ' of '),
- (r = !0);
- } else
- s +=
- ' the integral of ';
- else if ('string' == typeof t.body) {
- s +=
- ms[t.body] ||
- ms[t.latex.trim()] ||
- ' ' + t.body;
- } else
- t.latex &&
- t.latex.length > 0 &&
- ('\\' === t.latex[0]
- ? (s += ' ' + t.latex.substr(1))
- : (s += ' ' + t.latex));
- }
- break;
- case 'enclose':
- (n = te.toSpeakableFragment(t.body, e)),
- us(t.body)
- ? (s += ' crossed out ' + n + ' , ')
- : (s +=
- ' crossed out ' + n + '. End cross out');
- }
- if (!r && t.superscript) {
- let i = te.toSpeakableFragment(t.superscript, e);
- i = i.trim();
- const a = i.replace(/<[^>]*>/g, '');
- if (us(t.superscript)) {
- if ('math' === e.speechMode) {
- const e = (function(t) {
- if (t && Array.isArray(t))
- for (const e of t)
- if ('first' !== e.type && e.id)
- return e.id.toString();
- return '';
- })(t.superscript);
- e && (s += '');
- }
- '′' === a
- ? (s += ' prime ')
- : '2' === a
- ? (s += ' squared ')
- : '3' === a
- ? (s += ' cubed ')
- : isNaN(parseInt(a))
- ? (s += ' to the ' + i + '; ')
- : (s +=
- ' to the ' +
- a +
- ' power; ');
- } else
- isNaN(parseInt(a))
- ? (s += ' raised to the ' + i + '; ')
- : (s +=
- ' raised to the ' +
- a +
- ' power; ');
- }
- if (!r && t.subscript) {
- let i = te.toSpeakableFragment(t.subscript, e);
- (i = i.trim()),
- us(t.subscript)
- ? (s += ' sub ' + i)
- : (s += ' subscript ' + i + '. End subscript. ');
- }
- }
- return s;
- }),
- (te.toSpeakableText = function(t, e) {
- const i = e
- ? JSON.parse(JSON.stringify(e))
- : { textToSpeechMarkup: '', textToSpeechRules: 'mathlive' };
- if (
- ((i.speechMode = 'math'),
- window.sre && 'sre' === i.textToSpeechRules)
- ) {
- i.generateID = !0;
- const e = te.toMathML(t, i);
- return e
- ? (i.textToSpeechMarkup &&
- ((i.textToSpeechRulesOptions =
- i.textToSpeechRulesOptions || {}),
- (i.textToSpeechRulesOptions.markup =
- i.textToSpeechMarkup),
- 'ssml' === i.textToSpeechRulesOptions.markup &&
- (i.textToSpeechRulesOptions.markup =
- 'ssml_step'),
- (i.textToSpeechRulesOptions.rate =
- i.speechEngineRate)),
- i.textToSpeechRulesOptions &&
- window.sre.System.getInstance().setupEngine(
- i.textToSpeechRulesOptions
- ),
- window.sre.System.getInstance().toSpeech(e))
- : '';
- }
- let s = te.toSpeakableFragment(t, i);
- if ('ssml' === i.textToSpeechMarkup) {
- let t = '';
- i.speechEngineRate &&
- (t = ''),
- (s =
- '' +
- t +
- '' +
- s +
- '
' +
- (t ? '' : '') +
- '');
- } else
- s =
- 'mac' === i.textToSpeechMarkup &&
- 'mac' ===
- (function(t) {
- let e = 'other';
- return (
- navigator &&
- navigator.platform &&
- navigator.userAgent &&
- (/^(mac)/i.test(navigator.platform)
- ? (e = 'mac')
- : /^(win)/i.test(navigator.platform)
- ? (e = 'win')
- : /(android)/i.test(
- navigator.userAgent
- )
- ? (e = 'android')
- : /(iphone)/i.test(
- navigator.userAgent
- ) ||
- /(ipod)/i.test(
- navigator.userAgent
- ) ||
- /(ipad)/i.test(
- navigator.userAgent
- )
- ? (e = 'ios')
- : /\bCrOS\b/i.test(
- navigator.userAgent
- ) && (e = 'chromeos')),
- e === t ? t : '!' + t
- );
- })('mac')
- ? s
- .replace(//g, '')
- .replace(//g, '[[emph+]]')
- .replace(/<\/emphasis>/g, '')
- .replace(
- //g,
- '[[slc $1]]'
- )
- .replace(/]*>/g, '')
- .replace(/<\/say-as>/g, '')
- : s.replace(/<[^>]*>/g, '').replace(/\s{2,}/g, ' ');
- return s;
- });
- class vs {
- constructor(t, e) {
- this.$setConfig(e || {}),
- (this.element = t),
- (t.mathfield = this),
- (this.originalContent = t.innerHTML);
- let i = this.element.textContent;
- i && (i = i.trim());
- let s = '';
- this.config.substituteTextArea
- ? 'string' == typeof this.config.substituteTextArea
- ? (s += this.config.substituteTextArea)
- : (s += '')
- : /android|ipad|ipod|iphone/i.test(navigator.userAgent)
- ? (s +=
- "\n \n \n ")
- : (s +=
- ''),
- (s +=
- ''),
- this.config.virtualKeyboardMode ||
- (this.config.virtualKeyboardMode =
- window.matchMedia &&
- window.matchMedia('(any-pointer: coarse)').matches
- ? 'onfocus'
- : 'off'),
- 'manual' === this.config.virtualKeyboardMode
- ? ((s += `'))
- : (s += ''),
- (s += ''),
- (s +=
- '\n \n \n \n
\n '),
- (this.element.innerHTML = s);
- let a = 0;
- 'function' == typeof this.config.substituteTextArea
- ? (this.textarea = this.config.substituteTextArea())
- : (this.textarea = this.element.children[
- a++
- ].firstElementChild),
- (this.field = this.element.children[a].children[0]),
- this.field.addEventListener(
- 'wheel',
- t => {
- t.preventDefault(), t.stopPropagation();
- let e = void 0 === t.deltaX ? t.detail : -t.deltaX;
- isFinite(e) || (e = t.wheelDelta / 10),
- this.field.scroll({
- top: 0,
- left: this.field.scrollLeft - 5 * e,
- });
- },
- { passive: !1 }
- ),
- (this.virtualKeyboardToggleDOMNode = this.element.children[
- a++
- ].children[1]),
- this._attachButtonHandlers(
- this.virtualKeyboardToggleDOMNode,
- {
- default: 'toggleVirtualKeyboard',
- alt: 'toggleVirtualKeyboardAlt',
- shift: 'toggleVirtualKeyboardShift',
- }
- ),
- (this.ariaLiveText = this.element.children[a].children[0]),
- (this.accessibleNode = this.element.children[
- a++
- ].children[1]),
- (this.popover = bs(
- 'mathlive-popover-panel',
- 'ML__popover'
- )),
- (this.keystrokeCaption = bs(
- 'mathlive-keystroke-caption-panel',
- 'ML__keystroke-caption'
- )),
- (this.keystrokeCaptionVisible = !1),
- (this.virtualKeyboardVisible = !1),
- (this.keystrokeBuffer = ''),
- (this.keystrokeBufferStates = []),
- (this.keystrokeBufferResetTimer = null),
- (this.suggestionIndex = 0),
- (this.mode = e.defaultMode || 'math'),
- (this.smartModeSuppressed = !1),
- (this.style = {}),
- (this.blurred = !0),
- gs(this.element, 'focus', this),
- gs(this.element, 'blur', this),
- gs(this.textarea, 'cut', this),
- gs(this.textarea, 'copy', this),
- gs(this.textarea, 'paste', this),
- He.delegateKeyboardEvents(this.textarea, {
- container: this.element,
- allowDeadKey: () => 'text' === this.mode,
- typedText: this._onTypedText.bind(this),
- paste: this._onPaste.bind(this),
- keystroke: this._onKeystroke.bind(this),
- focus: this._onFocus.bind(this),
- blur: this._onBlur.bind(this),
- }),
- window.PointerEvent
- ? gs(this.field, 'pointerdown', this)
- : gs(this.field, 'touchstart:active mousedown', this),
- gs(window, 'resize', this);
- const o = { ...e };
- (o.onSelectionDidChange = vs.prototype._onSelectionDidChange.bind(
- this
- )),
- (o.onContentDidChange = vs.prototype._onContentDidChange.bind(
- this
- )),
- (o.onAnnounce = this.config.onAnnounce),
- (o.macros = this.config.macros),
- (o.removeExtraneousParentheses = this.config.removeExtraneousParentheses),
- (this.mathlist = new Oe.EditableMathlist(o, this)),
- (this.undoManager = new (class {
- constructor(t) {
- (this.mathlist = t),
- (this.maximumDepth = 1e3),
- (this.record = !1),
- (this.canCoalesce = !1),
- this.reset();
- }
- reset() {
- (this.stack = []), (this.index = -1);
- }
- startRecording() {
- this.record = !0;
- }
- canUndo() {
- return this.index > 0;
- }
- canRedo() {
- return this.index !== this.stack.length - 1;
- }
- undo(t) {
- this.canUndo() &&
- (t &&
- 'function' ==
- typeof t.onUndoStateWillChange &&
- t.onUndoStateWillChange(
- this.mathlist.target,
- 'undo'
- ),
- this.restore(this.stack[this.index - 1], t),
- (this.index -= 1),
- t &&
- 'function' ==
- typeof t.onUndoStateDidChange &&
- t.onUndoStateDidChange(
- this.mathlist.target,
- 'undo'
- ),
- (this.canCoalesce = !1));
- }
- redo(t) {
- this.canRedo() &&
- (t &&
- 'function' === t.onUndoStateWillChange &&
- t.onUndoStateWillChange(
- this.mathlist.target,
- 'redo'
- ),
- (this.index += 1),
- this.restore(this.stack[this.index], t),
- t &&
- 'function' ==
- typeof t.onUndoStateDidChange &&
- t.onUndoStateDidChange(
- this.mathlist.target,
- 'redo'
- ),
- (this.canCoalesce = !1));
- }
- pop() {
- this.canUndo() &&
- ((this.index -= 1), this.stack.pop());
- }
- snapshot(t) {
- this.record &&
- (t &&
- 'function' === t.onUndoStateWillChange &&
- t.onUndoStateWillChange(
- this.mathlist.target,
- 'snapshot'
- ),
- this.stack.splice(
- this.index + 1,
- this.stack.length - this.index - 1
- ),
- this.stack.push({
- latex: this.mathlist.root.toLatex(),
- selection: this.mathlist.toString(),
- }),
- this.index++,
- this.stack.length > this.maximumDepth &&
- this.stack.shift(),
- t &&
- 'function' ==
- typeof t.onUndoStateDidChange &&
- t.onUndoStateDidChange(
- this.mathlist.target,
- 'snapshot'
- ),
- (this.canCoalesce = !1));
- }
- snapshotAndCoalesce(t) {
- this.canCoalesce && this.pop(),
- this.snapshot(t),
- (this.canCoalesce = !0);
- }
- save() {
- return {
- latex: this.mathlist.root.toLatex(),
- selection: this.mathlist.toString(),
- };
- }
- restore(t, e) {
- const i = this.mathlist.suppressChangeNotifications;
- void 0 !== e.suppressChangeNotifications &&
- (this.mathlist.suppressChangeNotifications =
- e.suppressChangeNotifications),
- this.mathlist.insert(t ? t.latex : '', {
- mode: 'math',
- insertionMode: 'replaceAll',
- selectionMode: 'after',
- format: 'latex',
- ...e,
- }),
- this.mathlist.setPath(
- t
- ? t.selection
- : [{ relation: 'body', offset: 0 }]
- ),
- (this.mathlist.suppressChangeNotifications = i);
- }
- })(this.mathlist)),
- i.length > 0 && this.$latex(i),
- this.undoManager.startRecording(),
- this.undoManager.snapshot(this.config);
- }
- handleEvent(t) {
- switch (t.type) {
- case 'focus':
- this._onFocus(t);
- break;
- case 'blur':
- this._onBlur(t);
- break;
- case 'touchstart':
- case 'mousedown':
- case 'pointerdown':
- this._onPointerDown(t);
- break;
- case 'resize':
- this._resizeTimer &&
- window.cancelAnimationFrame(this._resizeTimer),
- (this._resizeTimer = window.requestAnimationFrame(
- () => ks(this) && this._onResize()
- ));
- break;
- case 'cut':
- this._onCut(t);
- break;
- case 'copy':
- this._onCopy(t);
- break;
- case 'paste':
- this._onPaste(t);
- }
- }
- $revertToOriginalContent() {
- (this.element.innerHTML = this.originalContent),
- (this.element.mathfield = null),
- delete this.accessibleNode,
- delete this.ariaLiveText,
- delete this.field,
- ys(this.textarea, 'cut', this),
- ys(this.textarea, 'copy', this),
- ys(this.textarea, 'paste', this),
- this.textarea.remove(),
- delete this.textarea,
- this.virtualKeyboardToggleDOMNode.remove(),
- delete this.virtualKeyboardToggleDOMNode,
- xs(this.popover),
- xs(this.keystrokeCaption),
- xs(this.virtualKeyboard),
- xs(
- document.getElementById('mathlive-alternate-keys-panel')
- ),
- ys(this.element, 'pointerdown', this),
- ys(this.element, 'touchstart:active mousedown', this),
- ys(this.element, 'focus', this),
- ys(this.element, 'blur', this),
- ys(window, 'resize', this),
- delete this.element;
- }
- _resetKeystrokeBuffer() {
- (this.keystrokeBuffer = ''),
- (this.keystrokeBufferStates = []),
- clearTimeout(this.keystrokeBufferResetTimer);
- }
- _getCaretPosition() {
- const t = (function t(e) {
- if (
- e.classList.contains('ML__caret') ||
- e.classList.contains('ML__text-caret') ||
- e.classList.contains('ML__command-caret')
- )
- return e;
- let i;
- return (
- Array.from(e.children).forEach(function(e) {
- i = i || t(e);
- }),
- i
- );
- })(this.field);
- if (t) {
- const e = t.getBoundingClientRect();
- return { x: e.right, y: e.bottom, height: e.height };
- }
- return null;
- }
- _getSelectionBounds() {
- const t = this.field.querySelectorAll('.ML__selected');
- if (t && t.length > 0) {
- const e = {
- top: 1 / 0,
- bottom: -1 / 0,
- left: 1 / 0,
- right: -1 / 0,
- };
- t.forEach(t => {
- const i = t.getBoundingClientRect();
- i.left < e.left && (e.left = i.left),
- i.right > e.right && (e.right = i.right),
- i.bottom > e.bottom && (e.bottom = i.bottom),
- i.top < e.top && (e.top = i.top);
- });
- const i = this.field.getBoundingClientRect(),
- s = e.right - e.left,
- a = e.bottom - e.top;
- return (
- (e.left = Math.ceil(
- e.left - i.left + this.field.scrollLeft
- )),
- (e.right = e.left + s),
- (e.top = Math.ceil(e.top - i.top)),
- (e.bottom = e.top + a),
- e
- );
- }
- return null;
- }
- _pathFromPoint(t, e, i) {
- let s;
- (i = i || {}).bias = i.bias || 0;
- const a = (function t(e, i, s) {
- let a = {
- element: null,
- distance: Number.POSITIVE_INFINITY,
- },
- o = !0;
- if (e.getAttribute('data-atom-id')) {
- a.element = e;
- const t = e.getBoundingClientRect(),
- n = i - (t.left + t.right) / 2,
- r = s - (t.top + t.bottom) / 2;
- (a.distance = n * n + r * r),
- (o = i >= t.left && i <= t.right);
- }
- return (
- o &&
- e.children &&
- Array.from(e.children).forEach(function(e) {
- const o = t(e, i, s);
- o.element &&
- o.distance <= a.distance &&
- (a = o);
- }),
- a
- );
- })(this.field, t, e).element,
- o = a ? a.getAttribute('data-atom-id') : null;
- if (o) {
- const e = this.mathlist.filter(function(t, e) {
- return e.captureSelection
- ? e.filter(t => t.id === o).length > 0
- : e.id === o;
- });
- if (e && e.length > 0)
- if (
- ((s = me.pathFromString(e[0]).path), 0 === i.bias)
- ) {
- const e = a.getBoundingClientRect();
- t < e.left + e.width / 2 &&
- !a.classList.contains('ML__placeholder') &&
- (s[s.length - 1].offset = Math.max(
- 0,
- s[s.length - 1].offset - 1
- ));
- } else
- i.bias < 0 &&
- (s[s.length - 1].offset = Math.min(
- this.mathlist.siblings().length - 1,
- Math.max(0, s[s.length - 1].offset + i.bias)
- ));
- }
- return s;
- }
- _onPointerDown(t) {
- const e = this;
- let i,
- s = !1,
- a = !1,
- o = !1;
- if (1 !== t.buttons) return;
- function n(t) {
- window.PointerEvent
- ? (ys(e.field, 'pointermove', h),
- ys(
- e.field,
- 'pointerend pointerleave pointercancel',
- n
- ),
- e.field.releasePointerCapture(t.pointerId))
- : (ys(e.field, 'touchmove', h),
- ys(e.field, 'touchend touchleave', n),
- ys(window, 'mousemove', h),
- ys(window, 'mouseup blur', n)),
- (s = !1),
- clearInterval(c),
- e.element
- .querySelectorAll('.ML__scroller')
- .forEach(t => t.parentNode.removeChild(t)),
- t.preventDefault(),
- t.stopPropagation();
- }
- let r = !1,
- l = !1;
- const c = setInterval(() => {
- r
- ? e.field.scroll({
- top: 0,
- left: e.field.scrollLeft - 16,
- })
- : l &&
- e.field.scroll({
- top: 0,
- left: e.field.scrollLeft + 16,
- });
- }, 32);
- function h(t) {
- const s = t.touches ? t.touches[0].clientX : t.clientX,
- o = t.touches ? t.touches[0].clientY : t.clientY,
- n = 'touch' === t.pointerType ? 20 : 5;
- if (
- Date.now() < m + 500 &&
- Math.abs(d - s) < n &&
- Math.abs(p - o) < n
- )
- return t.preventDefault(), void t.stopPropagation();
- const c = e.field.getBoundingClientRect();
- (l = s > c.right), (r = s < c.left);
- let h = i;
- window.PointerEvent
- ? t.isPrimary ||
- (h = e._pathFromPoint(t.clientX, t.clientY, {
- bias: 0,
- }))
- : t.touches &&
- 2 === t.touches.length &&
- (h = e._pathFromPoint(
- t.touches[1].clientX,
- t.touches[1].clientY,
- { bias: 0 }
- ));
- const u = e._pathFromPoint(s, o, {
- bias: s <= d ? (s === d ? 0 : -1) : 1,
- });
- u &&
- e.mathlist.setRange(h, u, {
- extendToWordBoundary: a,
- }) &&
- e._requestUpdate(),
- t.preventDefault(),
- t.stopPropagation();
- }
- const d = t.touches ? t.touches[0].clientX : t.clientX,
- p = t.touches ? t.touches[0].clientY : t.clientY,
- m = Date.now();
- ws &&
- Math.abs(ws.x - d) < 5 &&
- Math.abs(ws.y - p) < 5 &&
- Date.now() < ws.time + 500
- ? ((Ss += 1), (ws.time = m))
- : ((ws = { x: d, y: p, time: m }), (Ss = 1));
- const u = this.field.getBoundingClientRect();
- if (
- d >= u.left &&
- d <= u.right &&
- p >= u.top &&
- p <= u.bottom
- ) {
- if (
- (this.$hasFocus() ||
- ((o = !0),
- this.textarea.focus && this.textarea.focus()),
- this._resetKeystrokeBuffer(),
- (this.smartModeSuppressed = !1),
- (i = this._pathFromPoint(d, p, { bias: 0 })),
- i)
- ) {
- let r = document.createElement('div');
- (r.className = 'ML__scroller'),
- this.element.appendChild(r),
- (r.style.left = u.left - 200 + 'px'),
- (r = document.createElement('div')),
- (r.className = 'ML__scroller'),
- this.element.appendChild(r),
- (r.style.left = u.right + 'px'),
- t.shiftKey
- ? (this.mathlist.setRange(
- this.mathlist.path,
- i
- ),
- (i = me.clone(this.mathlist.path)),
- (i[i.length - 1].offset -= 1))
- : this.mathlist.setPath(i, 0),
- (o = !0),
- (this.style = {}),
- 3 === t.detail || Ss > 2
- ? (n(t),
- (3 !== t.detail && 3 !== Ss) ||
- this.mathlist.selectAll_())
- : s ||
- ((s = !0),
- window.PointerEvent
- ? (gs(e.field, 'pointermove', h),
- gs(
- e.field,
- 'pointerend pointercancel pointerup',
- n
- ),
- e.field.setPointerCapture(t.pointerId))
- : (gs(window, 'blur', n),
- t.touches
- ? (gs(t.target, 'touchmove', h),
- gs(t.target, 'touchend', n))
- : (gs(window, 'mousemove', h),
- gs(window, 'mouseup', n))),
- (2 !== t.detail && 2 !== Ss) ||
- ((a = !0), this.mathlist.selectGroup_()));
- }
- } else ws = null;
- o && this._requestUpdate(), t.preventDefault();
- }
- _onSelectionDidChange() {
- this.mathlist.commitCommandStringBeforeInsertionPoint();
- let t = '';
- this.mathlist.forEachSelected(e => {
- t += e.toLatex();
- }),
- t
- ? ((this.textarea.value = t),
- this.$hasFocus() &&
- this.textarea.select &&
- this.textarea.select())
- : ((this.textarea.value = ''),
- this.textarea.setAttribute('aria-label', ''));
- {
- const t = this.mode;
- (this.mode =
- this.mathlist.anchorMode() || this.config.defaultMode),
- this.mode !== t &&
- 'function' == typeof this.config.onModeChange &&
- this.config.onModeChange(this, this.mode),
- 'command' === t &&
- 'command' !== this.mode &&
- (Je.hidePopover(this),
- this.mathlist.removeCommandString());
- }
- Je.updatePopoverPosition(this, { deferred: !0 }),
- 'function' == typeof this.config.onSelectionDidChange &&
- this.config.onSelectionDidChange(this);
- }
- _onContentDidChange() {
- this.undoManager.canRedo()
- ? this.element.classList.add('can-redo')
- : this.element.classList.remove('can-redo'),
- this.undoManager.canUndo()
- ? this.element.classList.add('can-undo')
- : this.element.classList.remove('can-undo'),
- 'function' == typeof this.config.onContentDidChange &&
- this.config.onContentDidChange(this);
- }
- _nextAtomSpeechText(t) {
- function e(t, e) {
- return 'body' === e.relation
- ? {
- enclose: 'cross out',
- leftright: 'fence',
- surd: 'square root',
- root: 'math field',
- }[t.type]
- : {
- numer: 'numerator',
- denom: 'denominator',
- index: 'index',
- body: 'parent',
- subscript: 'subscript',
- superscript: 'superscript',
- }[e.relation];
- }
- const i = t ? t.path : [],
- s = this.mathlist.path,
- a = s[s.length - 1];
- let o = '';
- for (; i.length > s.length; )
- (o += 'out of ' + e(t.parent(), i[i.length - 1]) + '; '),
- i.pop();
- if (!this.mathlist.isCollapsed())
- return As(this, '', this.mathlist.getSelectedAtoms());
- const n = e(this.mathlist.parent(), a);
- 0 === a.offset &&
- (o += (n ? 'start of ' + n : 'unknown') + ': ');
- const r = this.mathlist.sibling(
- Math.max(1, this.mathlist.extent)
- );
- return (
- r
- ? (o += As(this, '', r))
- : 0 !== a.offset &&
- (o += n ? 'end of ' + n : 'unknown'),
- o
- );
- }
- _announce(t, e, i) {
- 'function' == typeof this.config.onAnnounce &&
- this.config.onAnnounce(this, t, e, i);
- }
- _onFocus() {
- this.blurred &&
- ((this.blurred = !1),
- this.textarea.focus && this.textarea.focus(),
- 'onfocus' === this.config.virtualKeyboardMode &&
- this.showVirtualKeyboard_(),
- Je.updatePopoverPosition(this),
- this.config.onFocus && this.config.onFocus(this),
- this._requestUpdate());
- }
- _onBlur() {
- this.blurred ||
- ((this.blurred = !0),
- (this.ariaLiveText.textContent = ''),
- 'onfocus' === this.config.virtualKeyboardMode &&
- this.hideVirtualKeyboard_(),
- this.complete_({ discard: !0 }),
- this._requestUpdate(),
- this.config.onBlur && this.config.onBlur(this));
- }
- _onResize() {
- this.element.classList.remove(
- 'ML__isNarrowWidth',
- 'ML__isWideWidth',
- 'ML__isExtendedWidth'
- ),
- window.innerWidth >= 1024
- ? this.element.classList.add('ML__isExtendedWidth')
- : window.innerWidth >= 768
- ? this.element.classList.add('ML__isWideWidth')
- : this.element.classList.add('ML__isNarrowWidth'),
- Je.updatePopoverPosition(this);
- }
- toggleKeystrokeCaption_() {
- (this.keystrokeCaptionVisible = !this.keystrokeCaptionVisible),
- (this.keystrokeCaption.innerHTML = ''),
- this.keystrokeCaptionVisible ||
- (this.keystrokeCaption.style.visibility = 'hidden');
- }
- _showKeystroke(t) {
- const e = this.keystrokeCaption;
- if (e && this.keystrokeCaptionVisible) {
- const i = this.element.getBoundingClientRect();
- (e.style.left = i.left + 'px'),
- (e.style.top = i.top - 64 + 'px'),
- (e.innerHTML =
- '' +
- (ve.stringify(t) || t) +
- '' +
- e.innerHTML),
- (e.style.visibility = 'visible'),
- setTimeout(function() {
- e.childNodes.length > 0 &&
- e.removeChild(
- e.childNodes[e.childNodes.length - 1]
- ),
- 0 === e.childNodes.length &&
- (e.style.visibility = 'hidden');
- }, 3e3);
- }
- }
- $perform(t) {
- if (!t) return !1;
- let e,
- i = !1,
- s = [],
- a = !1;
- if (
- (Array.isArray(t)
- ? ((e = t[0]), (s = t.slice(1)))
- : (e = t),
- (e = e.replace(/-\w/g, t => t[1].toUpperCase())),
- (e += '_'),
- 'function' == typeof this.mathlist[e])
- ) {
- if (
- (/^(delete|transpose|add)/.test(e) &&
- this._resetKeystrokeBuffer(),
- /^(delete|transpose|add)/.test(e) &&
- 'command' !== this.mode &&
- (this.undoManager.pop(),
- this.undoManager.snapshot(this.config)),
- this.mathlist[e](...s),
- /^(delete|transpose|add)/.test(e) &&
- 'command' !== this.mode &&
- this.undoManager.snapshot(this.config),
- /^(delete)/.test(e) && 'command' === this.mode)
- ) {
- const t = this.mathlist.extractCommandStringAroundInsertionPoint(),
- e = At.suggest(t);
- 0 === e.length
- ? Je.hidePopover(this)
- : Je.showPopoverWithLatex(
- this,
- e[0].match,
- e.length > 1
- );
- }
- (a = !0), (i = !0);
- } else
- 'function' == typeof this[e] &&
- ((a = this[e](...s)), (i = !0));
- return (
- (this.mathlist.isCollapsed() &&
- !/^(transpose|paste|complete|((moveToNextChar|moveToPreviousChar|extend).*))_$/.test(
- e
- )) ||
- (this._resetKeystrokeBuffer(), (this.style = {})),
- a && this._requestUpdate(),
- i
- );
- }
- performWithFeedback_(t) {
- return (
- this.$focus(),
- this.config.keypressVibration &&
- navigator.vibrate &&
- navigator.vibrate(3),
- 'moveToNextPlaceholder' ===
- (t = t.replace(/-\w/g, t => t[1].toUpperCase())) ||
- 'moveToPreviousPlaceholder' === t ||
- 'complete' === t
- ? this.returnKeypressSound
- ? (this.returnKeypressSound.load(),
- this.returnKeypressSound.play().catch(t => {}))
- : this.keypressSound &&
- (this.keypressSound.load(),
- this.keypressSound.play().catch(t => {}))
- : ('deletePreviousChar' !== t &&
- 'deleteNextChar' !== t &&
- 'deletePreviousWord' !== t &&
- 'deleteNextWord' !== t &&
- 'deleteToGroupStart' !== t &&
- 'deleteToGroupEnd' !== t &&
- 'deleteToMathFieldStart' !== t &&
- 'deleteToMathFieldEnd' !== t) ||
- !this.deleteKeypressSound
- ? this.keypressSound &&
- (this.keypressSound.load(),
- this.keypressSound.play().catch(t => {}))
- : (this.deleteKeypressSound.load(),
- this.deleteKeypressSound.play().catch(t => {})),
- this.$perform(t)
- );
- }
- convertLastAtomsToText_(t, e) {
- 'function' == typeof t && ((e = t), (t = 1 / 0)),
- void 0 === t && (t = 1 / 0);
- let i = 0,
- s = !1;
- for (this.mathlist.contentWillChange(); !s; ) {
- const a = this.mathlist.sibling(i);
- (s =
- 0 === t ||
- !a ||
- 'math' !== a.mode ||
- !(
- /mord|textord|mpunct/.test(a.type) ||
- ('mop' === a.type && /[a-zA-Z]+/.test(a.body))
- ) ||
- a.superscript ||
- a.subscript ||
- (e && !e(a))),
- s ||
- (a.applyStyle({ mode: 'text' }),
- (a.latex = a.body)),
- (i -= 1),
- (t -= 1);
- }
- this.mathlist.contentDidChange();
- }
- convertLastAtomsToMath_(t, e) {
- 'function' == typeof t && ((e = t), (t = 1 / 0)),
- void 0 === t && (t = 1 / 0),
- this.mathlist.contentWillChange();
- let i = 0,
- s = !1;
- for (; !s; ) {
- const a = this.mathlist.sibling(i);
- (s =
- 0 === t ||
- !a ||
- 'text' !== a.mode ||
- ' ' === a.body ||
- (e && !e(a))),
- s || a.applyStyle({ mode: 'math', type: 'mord' }),
- (i -= 1),
- (t -= 1);
- }
- this.removeIsolatedSpace_(), this.mathlist.contentDidChange();
- }
- removeIsolatedSpace_() {
- let t = 0;
- for (
- ;
- this.mathlist.sibling(t) &&
- 'math' === this.mathlist.sibling(t).mode;
-
- )
- t -= 1;
- if (
- this.mathlist.sibling(t) &&
- 'text' === this.mathlist.sibling(t).mode &&
- ' ' === this.mathlist.sibling(t).body &&
- (!this.mathlist.sibling(t - 1) ||
- 'math' === this.mathlist.sibling(t - 1).mode)
- ) {
- this.mathlist.contentWillChange(),
- this.mathlist.siblings().splice(t - 1, 1),
- this.mathlist.contentDidChange();
- const e = this.mathlist.suppressChangeNotifications;
- (this.mathlist.suppressChangeNotifications = !0),
- this.mathlist.setSelection(
- this.mathlist.anchorOffset() - 1
- ),
- (this.mathlist.suppressChangeNotifications = e);
- }
- }
- getTextBeforeAnchor_() {
- let t = '',
- e = 0,
- i = !1;
- for (; !i; ) {
- const s = this.mathlist.sibling(e);
- (i = !(
- s &&
- (('text' === s.mode && !s.type) ||
- ('math' === s.mode &&
- /mord|textord|mpunct/.test(s.type)))
- )),
- i || (t = s.body + t),
- (e -= 1);
- }
- return t;
- }
- smartMode_(t, e) {
- if (this.smartModeSuppressed) return !1;
- if (
- this.mathlist.endOffset() <
- this.mathlist.siblings().length - 1
- )
- return !1;
- if (!e || e.ctrlKey || e.metaKey) return !1;
- const i = He.eventToChar(e);
- if (i.length > 1) return !1;
- if (!this.mathlist.isCollapsed())
- return !('text' !== this.mode || !/[/_^]/.test(i));
- const s = this.getTextBeforeAnchor_() + i;
- if ('text' === this.mode) {
- if ('Esc' === t || /[/\\]/.test(i)) return !0;
- if (/[\^_]/.test(i))
- return (
- /(^|\s)[a-zA-Z][^_]$/.test(s) &&
- this.convertLastAtomsToMath_(1),
- !0
- );
- const e = { ')': '(', '}': '{', ']': '[' }[i];
- if (
- e &&
- this.mathlist.parent() &&
- 'leftright' === this.mathlist.parent().type &&
- this.mathlist.parent().leftDelim === e
- )
- return !0;
- if (/(^|[^a-zA-Z])(a|I)[ ]$/.test(s)) return !1;
- if (/[$€£₤₺¥¤฿¢₡₧₨₹₩₱]/u.test(i)) return !0;
- if (/(^|[^a-zA-Z'’])[a-zA-Z][ ]$/.test(s))
- return this.convertLastAtomsToMath_(1), !1;
- if (/[^0-9]\.[^0-9\s]$/.test(s)) {
- this.convertLastAtomsToMath_(1);
- const t = this.mathlist.sibling(0);
- return (
- (t.body = '⋅'),
- (t.autoFontFamily = 'cmr'),
- (t.latex = '\\cdot'),
- !0
- );
- }
- if (/(^|\s)[a-zA-Z][^a-zA-Z]$/.test(s))
- return this.convertLastAtomsToMath_(1), !0;
- if (/\.[0-9]$/.test(s))
- return this.convertLastAtomsToMath_(1), !0;
- if (/[(][0-9+\-.]$/.test(s))
- return this.convertLastAtomsToMath_(1), !0;
- if (/[(][a-z][,;]$/.test(s))
- return this.convertLastAtomsToMath_(2), !0;
- if (/[0-9+\-=><*|]$/.test(i))
- return this.removeIsolatedSpace_(), !0;
- } else {
- if ('Spacebar' === t)
- return (
- this.convertLastAtomsToText_(t =>
- /[a-z][:,;.]$/.test(t.body)
- ),
- !0
- );
- if (
- /[a-zA-Z]{3,}$/.test(s) &&
- !/(dxd|abc|xyz|uvw)$/.test(s)
- )
- return (
- this.convertLastAtomsToText_(t =>
- /[a-zA-Z:,;.]/.test(t.body)
- ),
- !0
- );
- if (/(^|\W)(if|If)$/i.test(s))
- return this.convertLastAtomsToText_(1), !0;
- if (
- /(\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5){3,}$/u.test(
- s
- ) &&
- !/(αβγ)$/.test(s)
- )
- return (
- this.convertLastAtomsToText_(t =>
- /(:|,|;|.|\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5)/u.test(
- t.body
- )
- ),
- !0
- );
- if (/\?|\./.test(i)) return !0;
- }
- return !1;
- }
- _onKeystroke(t, e) {
- if (
- (this._showKeystroke(t),
- clearTimeout(this.keystrokeBufferResetTimer),
- this.config.onKeystroke &&
- !this.config.onKeystroke(this, t, e))
- )
- return (
- e &&
- e.preventDefault &&
- (e.preventDefault(), e.stopPropagation()),
- !1
- );
- let i,
- s,
- a,
- o = !1;
- if (
- 'command' !== this.mode &&
- (!e || (!e.ctrlKey && !e.metaKey))
- ) {
- const t = He.eventToChar(e);
- if ('Backspace' !== t)
- if (!t || t.length > 1) this._resetKeystrokeBuffer();
- else {
- const e = this.keystrokeBuffer + t;
- let a = 0;
- for (; !i && a < e.length; ) {
- let t;
- if (this.keystrokeBufferStates[a]) {
- const e = new Oe.EditableMathlist();
- (e.root = te.makeRoot(
- 'math',
- he.parseTokens(
- n(
- this.keystrokeBufferStates[a]
- .latex
- ),
- this.config.default,
- null,
- this.config.macros
- )
- )),
- e.setPath(
- this.keystrokeBufferStates[a]
- .selection
- ),
- (t = e.siblings());
- } else t = this.mathlist.siblings();
- (i = ve.forString(
- this.mode,
- t,
- e.slice(a),
- this.config
- )),
- (a += 1);
- }
- (s = a - 1),
- (this.keystrokeBuffer += t),
- this.keystrokeBufferStates.push(
- this.undoManager.save()
- ),
- ve.startsWithString(e, this.config).length <= 1
- ? (o = !0)
- : this.config.inlineShortcutTimeout &&
- (this.keystrokeBufferResetTimer = setTimeout(
- () => {
- this._resetKeystrokeBuffer();
- },
- this.config.inlineShortcutTimeout
- ));
- }
- }
- if (this.config.smartMode) {
- const s = this.mode;
- i
- ? (this.mode = 'math')
- : this.smartMode_(t, e) &&
- ((this.mode = { math: 'text', text: 'math' }[
- this.mode
- ]),
- (a = '')),
- this.mode !== s &&
- 'function' == typeof this.config.onModeChange &&
- this.config.onModeChange(this, this.mode);
- }
- if (
- (i || a || (a = ve.selectorForKeystroke(this.mode, t)),
- !i && !a)
- )
- return !0;
- this.mathlist.decorateCommandStringAroundInsertionPoint(!1);
- const r = this.mathlist.parent();
- if (
- ('moveAfterParent' === a &&
- r &&
- 'leftright' === r.type &&
- this.mathlist.endOffset() ===
- this.mathlist.siblings().length - 1 &&
- this.config.smartFence &&
- this.mathlist._insertSmartFence('.') &&
- ((a = ''), this._requestUpdate()),
- 'math' === this.mode && 'Spacebar' === t && !i)
- ) {
- const t = this.mathlist.sibling(1),
- e = this.mathlist.sibling(-1);
- ((t && 'text' === t.mode) || (e && 'text' === e.mode)) &&
- this.mathlist.insert(' ', { mode: 'text' });
- }
- if (((a && !this.$perform(a)) || i) && i) {
- if (
- !/^(\\{|\\}|\\[|\\]|\\@|\\#|\\$|\\%|\\^|\\_|\\backslash)$/.test(
- i
- )
- ) {
- const t = {
- ...this.mathlist.anchorStyle(),
- ...this.style,
- };
- this.mathlist.insert(He.eventToChar(e), {
- suppressChangeNotifications: !0,
- mode: this.mode,
- style: t,
- });
- const i = this.mode;
- this.undoManager.snapshotAndCoalesce(this.config),
- this.undoManager.restore(
- this.keystrokeBufferStates[s],
- {
- ...this.config,
- suppressChangeNotifications: !0,
- }
- ),
- (this.mode = i);
- }
- this.mathlist.contentWillChange();
- const t = this.mathlist.suppressChangeNotifications;
- this.mathlist.suppressChangeNotifications = !0;
- const a = { ...this.mathlist.anchorStyle(), ...this.style };
- this.mathlist.insert(i, {
- format: 'latex',
- mode: this.mode,
- style: a,
- smartFence: !0,
- }),
- this.removeIsolatedSpace_(),
- i.endsWith(' ') &&
- ((this.mode = 'text'),
- this.mathlist.insert(' ', {
- mode: 'text',
- style: a,
- })),
- (this.mathlist.suppressChangeNotifications = t),
- this.mathlist.contentDidChange(),
- this.undoManager.snapshot(this.config),
- this._requestUpdate(),
- this._announce('replacement'),
- o && this._resetKeystrokeBuffer();
- }
- return (
- this.scrollIntoView(),
- e &&
- e.preventDefault &&
- (e.preventDefault(), e.stopPropagation()),
- !1
- );
- }
- _onTypedText(t, e) {
- if (
- ((e = e || {}).focus && this.$focus(),
- e.feedback &&
- (this.config.keypressVibration &&
- navigator.vibrate &&
- navigator.vibrate(3),
- this.keypressSound &&
- (this.keypressSound.load(),
- this.keypressSound.play().catch(t => {}))),
- e.commandMode &&
- 'command' !== this.mode &&
- this.switchMode_('command'),
- this.mathlist.decorateCommandStringAroundInsertionPoint(!1),
- e.simulateKeystroke)
- ) {
- const e = t.charAt(0),
- i = He.charToEvent(e);
- if (!this.$keystroke(He.keyboardEventToString(i), i))
- return;
- }
- let i = '',
- a = !1;
- if (this.pasteInProgress)
- (this.pasteInProgress = !1),
- this.mathlist.insert(t, {
- smartFence: this.config.smartFence,
- mode: 'math',
- });
- else {
- const e = { ...this.mathlist.anchorStyle(), ...this.style },
- o = s(t);
- for (const t of o)
- if ('command' === this.mode) {
- this.mathlist.removeSuggestion(),
- (this.suggestionIndex = 0);
- const e = this.mathlist.extractCommandStringAroundInsertionPoint(),
- s = At.suggest(e + t);
- (a = s.length > 1),
- 0 === s.length
- ? (this.mathlist.insert(t, {
- mode: 'command',
- }),
- /^\\[a-zA-Z\\*]+$/.test(e + t) &&
- this.mathlist.decorateCommandStringAroundInsertionPoint(
- !0
- ),
- Je.hidePopover(this))
- : (this.mathlist.insert(t, {
- mode: 'command',
- }),
- s[0].match !== e + t &&
- this.mathlist.insertSuggestion(
- s[0].match,
- -s[0].match.length + e.length + 1
- ),
- (i = s[0].match));
- } else if ('math' === this.mode) {
- const i = {
- '^': 'moveToSuperscript',
- _: 'moveToSubscript',
- ' ': 'moveAfterParent',
- }[t];
- if (i) {
- if ('moveToSuperscript' === i) {
- if (
- this._superscriptDepth() >=
- this.config.scriptDepth[1]
- )
- return void this._announce('plonk');
- } else if (
- 'moveToSubscript' === i &&
- this._subscriptDepth() >=
- this.config.scriptDepth[0]
- )
- return void this._announce('plonk');
- this.$perform(i);
- } else
- this.config.smartSuperscript &&
- 'superscript' === this.mathlist.relation() &&
- /[0-9]/.test(t) &&
- 0 ===
- this.mathlist
- .siblings()
- .filter(t => 'first' !== t.type).length
- ? (this.mathlist.insert(t, {
- mode: 'math',
- style: e,
- }),
- this.mathlist.moveAfterParent_())
- : this.mathlist.insert(t, {
- mode: 'math',
- style: e,
- smartFence: this.config.smartFence,
- });
- } else
- 'text' === this.mode &&
- this.mathlist.insert(t, {
- mode: 'text',
- style: e,
- });
- }
- 'command' !== this.mode &&
- this.undoManager.snapshotAndCoalesce(this.config),
- this._requestUpdate(),
- this.scrollIntoView(),
- Je.showPopoverWithLatex(this, i, a);
- }
- _hash() {
- let t = 0;
- const e = this.mathlist.root.toLatex(!1);
- for (let i = 0; i < e.length; i++)
- (t = 31 * t + e.charCodeAt(i)), (t |= 0);
- return Math.abs(t);
- }
- _requestUpdate() {
- this.dirty ||
- ((this.dirty = !0),
- requestAnimationFrame(t => ks(this) && this._render()));
- }
- _render(t) {
- (t = t || {}),
- (this.dirty = !1),
- window.mathlive || (window.mathlive = {}),
- this.mathlist.anchor() ||
- (this.mathlist.path = [
- { relation: 'body', offset: 0 },
- ]),
- this.mathlist.forEach(t => {
- (t.caret = ''), (t.isSelected = !1);
- });
- const e = this.$hasFocus();
- this.mathlist.isCollapsed()
- ? (this.mathlist.anchor().caret = e ? this.mode : '')
- : this.mathlist.forEachSelected(t => {
- t.isSelected = !0;
- });
- const i = te.decompose(
- {
- mathstyle: 'displaystyle',
- generateID: {
- seed: this._hash(),
- groupNumbers: t.forHighlighting,
- },
- macros: this.config.macros,
- },
- this.mathlist.root
- ),
- s = $.makeSpan(i, 'ML__base');
- s.attributes = { translate: 'no', 'aria-hidden': 'true' };
- const a = $.makeSpan('', 'ML__strut');
- a.setStyle('height', s.height, 'em');
- const o = [a];
- if (0 !== s.depth) {
- const t = $.makeSpan('', 'ML__strut--bottom');
- t.setStyle('height', s.height + s.depth, 'em'),
- t.setStyle('vertical-align', -s.depth, 'em'),
- o.push(t);
- }
- o.push(s);
- const n = $.makeSpan(o, 'ML__mathlive');
- (this.field.innerHTML = n.toMarkup(
- 0,
- this.config.horizontalSpacingScale
- )),
- this.field.classList.toggle('ML__focused', e),
- (this.accessibleNode.innerHTML =
- "');
- const r = this._getSelectionBounds();
- if (r) {
- const t = document.createElement('div');
- t.classList.add('ML__selection'),
- (t.style.position = 'absolute'),
- (t.style.left = r.left + 'px'),
- (t.style.top = r.top + 'px'),
- (t.style.width = Math.ceil(r.right - r.left) + 'px'),
- (t.style.height =
- Math.ceil(r.bottom - r.top - 1) + 'px'),
- this.field.insertBefore(t, this.field.childNodes[0]);
- }
- }
- _onPaste() {
- return (this.pasteInProgress = !0), !0;
- }
- _onCut() {
- return (
- setTimeout(
- function() {
- this.$clearSelection(), this._requestUpdate();
- }.bind(this),
- 0
- ),
- !0
- );
- }
- _onCopy(t) {
- this.mathlist.isCollapsed()
- ? (t.clipboardData.setData(
- 'text/plain',
- '$$' + this.$text('latex-expanded') + '$$'
- ),
- t.clipboardData.setData(
- 'application/json',
- this.$text('json')
- ),
- t.clipboardData.setData(
- 'application/xml',
- this.$text('mathML')
- ))
- : (t.clipboardData.setData(
- 'text/plain',
- '$$' + this.$selectedText('latex-expanded') + '$$'
- ),
- t.clipboardData.setData(
- 'application/json',
- this.$selectedText('json')
- ),
- t.clipboardData.setData(
- 'application/xml',
- this.$selectedText('mathML')
- )),
- t.preventDefault();
- }
- formatMathlist(t, e) {
- let i = '';
- if ('latex' === (e = e || 'latex') || 'latex-expanded' === e)
- i = t.toLatex('latex-expanded' === e);
- else if ('mathML' === e) i = t.toMathML(this.config);
- else if ('spoken' === e) i = te.toSpeakableText(t, this.config);
- else if ('spoken-text' === e) {
- const e = this.config.textToSpeechMarkup;
- (this.config.textToSpeechMarkup = ''),
- (i = te.toSpeakableText(t, this.config)),
- (this.config.textToSpeechMarkup = e);
- } else if (
- 'spoken-ssml' === e ||
- 'spoken-ssml-withHighlighting' === e
- ) {
- const s = this.config.textToSpeechMarkup,
- a = this.config.generateID;
- (this.config.textToSpeechMarkup = 'ssml'),
- 'spoken-ssml-withHighlighting' === e &&
- (this.config.generateID = !0),
- (i = te.toSpeakableText(t, this.config)),
- (this.config.textToSpeechMarkup = s),
- (this.config.generateID = a);
- } else if ('json' === e) {
- const e = te.toAST(t, this.config);
- i = JSON.stringify(e);
- } else
- 'ASCIIMath' === e &&
- (i = (function t(e, i) {
- if (!e) return '';
- if (Array.isArray(e)) {
- let i = '';
- if (0 === e.length) return '';
- if (
- ('first' === e[0].type && e.shift(),
- 'text' === e[0].mode)
- ) {
- let s = 0;
- for (
- i = '"';
- e[s] && 'text' === e[s].mode;
-
- )
- (i += e[s].body), s++;
- i += '"' + t(e.slice(s));
- } else {
- let s = 0;
- for (; e[s] && 'math' === e[s].mode; )
- (i += t(e[s])), s++;
- i += t(e.slice(s));
- }
- return i.trim();
- }
- if ('text' === e.mode) return '"' + e.body + '"';
- let s = '';
- const a = e.latex ? e.latex.trim() : null;
- let o;
- switch (e.type) {
- case 'group':
- case 'root':
- s = t(e.body);
- break;
- case 'array':
- break;
- case 'genfrac':
- (e.leftDelim || e.rightDelim) &&
- (s +=
- '.' !== e.leftDelim && e.leftDelim
- ? e.leftDelim
- : '{:'),
- e.hasBarLine
- ? ((s += '('),
- (s += t(e.numer)),
- (s += ')/('),
- (s += t(e.denom)),
- (s += ')'))
- : ((s += '(' + t(e.numer) + '),'),
- (s += '(' + t(e.denom) + ')')),
- (e.leftDelim || e.rightDelim) &&
- (s +=
- '.' !== e.rightDelim &&
- e.rightDelim
- ? e.rightDelim
- : '{:');
- break;
- case 'surd':
- e.index
- ? (s +=
- 'root(' +
- t(e.index) +
- ')(' +
- t(e.body) +
- ')')
- : (s += 'sqrt(' + t(e.body) + ')');
- break;
- case 'leftright':
- (s +=
- '.' !== e.leftDelim && e.leftDelim
- ? e.leftDelim
- : '{:'),
- (s += t(e.body)),
- (s +=
- '.' !== e.rightDelim && e.rightDelim
- ? e.rightDelim
- : '{:');
- break;
- case 'sizeddelim':
- case 'delim':
- case 'accent':
- break;
- case 'line':
- case 'overlap':
- case 'overunder':
- break;
- case 'mord':
- (s =
- hi[a] ||
- a ||
- ('string' == typeof e.body
- ? e.body
- : '')),
- '\\' === s[0] && (s += ''),
- (o = a
- ? a.match(
- /[{]?\\char"([0-9abcdefABCDEF]*)[}]?/
- )
- : null),
- o
- ? (s = String.fromCharCode(
- parseInt('0x' + o[1])
- ))
- : s.length > 0 &&
- '\\' === s.charAt(0) &&
- (s =
- 'string' == typeof e.body
- ? e.body.charAt(0)
- : e.latex);
- break;
- case 'mbin':
- case 'mrel':
- case 'textord':
- case 'minner':
- s =
- a && hi[a]
- ? hi[a]
- : a && di[a]
- ? di[a]
- : e.body;
- break;
- case 'mopen':
- case 'mclose':
- s += e.body;
- break;
- case 'mpunct':
- s = di[a] || a;
- break;
- case 'mop':
- '' !== e.body &&
- ((s = ''),
- (s +=
- '\\operatorname' === a
- ? t(e.body)
- : e.body || a),
- (s += ' '));
- break;
- case 'mathstyle':
- case 'box':
- case 'spacing':
- case 'enclose':
- break;
- case 'space':
- s = ' ';
- }
- if (e.subscript) {
- s += '_';
- const i = t(e.subscript);
- i.length > 1 && !/^(-)?\d+(\.\d*)?$/.test(i)
- ? (s += '(' + i + ')')
- : (s += i);
- }
- if (e.superscript) {
- s += '^';
- const i = t(e.superscript);
- i.length > 1 && !/^(-)?\d+(\.\d*)?$/.test(i)
- ? (s += '(' + i + ')')
- : (s += i);
- }
- return s;
- })(t, this.config));
- return i;
- }
- $text(t) {
- return this.formatMathlist(this.mathlist.root, t);
- }
- $selectedText(t) {
- const e = this.mathlist.getSelectedAtoms();
- if (!e) return '';
- const i = te.makeRoot('math', e);
- return this.formatMathlist(i, t);
- }
- $selectionIsCollapsed() {
- return this.mathlist.isCollapsed();
- }
- $selectionDepth() {
- return this.mathlist.path.length;
- }
- _superscriptDepth() {
- let t = 0,
- e = 0,
- i = this.mathlist.ancestor(e),
- s = !1;
- for (; i; )
- (i.superscript || i.subscript) && (t += 1),
- i.superscript ? (s = !0) : i.subscript && (s = !1),
- (e += 1),
- (i = this.mathlist.ancestor(e));
- return s ? t : 0;
- }
- _subscriptDepth() {
- let t = 0,
- e = 0,
- i = this.mathlist.ancestor(e),
- s = !1;
- for (; i; )
- (i.superscript || i.subscript) && (t += 1),
- i.superscript ? (s = !1) : i.subscript && (s = !0),
- (e += 1),
- (i = this.mathlist.ancestor(e));
- return s ? t : 0;
- }
- $selectionAtStart() {
- return 0 === this.mathlist.startOffset();
- }
- $selectionAtEnd() {
- return (
- this.mathlist.endOffset() >=
- this.mathlist.siblings().length - 1
- );
- }
- groupIsSelected() {
- return (
- 0 === this.mathlist.startOffset() &&
- this.mathlist.endOffset() >=
- this.mathlist.siblings().length - 1
- );
- }
- $latex(t, e) {
- return t
- ? (t !== this.mathlist.root.toLatex() &&
- ((e = e || {}),
- this.mathlist.insert(
- t,
- Object.assign({}, this.config, {
- insertionMode: 'replaceAll',
- selectionMode: 'after',
- format: 'latex',
- mode: 'math',
- suppressChangeNotifications:
- e.suppressChangeNotifications,
- })
- ),
- this.undoManager.snapshot(this.config),
- this._requestUpdate()),
- t)
- : this.mathlist.root.toLatex();
- }
- $el() {
- return this.element;
- }
- undo() {
- return this.complete_(), this.undoManager.undo(this.config), !0;
- }
- redo() {
- return this.complete_(), this.undoManager.redo(this.config), !0;
- }
- scrollIntoView() {
- this.dirty && this._render();
- let t = this._getCaretPosition();
- const e = this.field.getBoundingClientRect();
- if (!t) {
- const i = this._getSelectionBounds();
- i &&
- (t = {
- x: i.right + e.left - this.field.scrollLeft,
- y: i.top + e.top - this.field.scrollTop,
- });
- }
- if (t) {
- const i = t.x - window.scrollX;
- i < e.left
- ? this.field.scroll({
- top: 0,
- left: i - e.left + this.field.scrollLeft - 20,
- behavior: 'smooth',
- })
- : i > e.right &&
- this.field.scroll({
- top: 0,
- left: i - e.right + this.field.scrollLeft + 20,
- behavior: 'smooth',
- });
- }
- }
- scrollToStart() {
- this.field.scroll(0, 0);
- }
- scrollToEnd() {
- const t = this.field.getBoundingClientRect();
- this.field.scroll(t.left - window.scrollX, 0);
- }
- enterCommandMode_() {
- this.switchMode_('command');
- }
- copyToClipboard_() {
- return (
- this.$focus(),
- this.mathlist.isCollapsed() && this.$select(),
- document.execCommand('copy'),
- !1
- );
- }
- cutToClipboard_() {
- return this.$focus(), document.execCommand('cut'), !0;
- }
- pasteFromClipboard_() {
- return this.$focus(), document.execCommand('paste'), !0;
- }
- $insert(t, e) {
- if ('string' == typeof t && t.length > 0) {
- if (
- ((e = e || {}).focus && this.$focus(),
- e.feedback &&
- (this.config.keypressVibration &&
- navigator.vibrate &&
- navigator.vibrate(3),
- this.keypressSound &&
- (this.keypressSound.load(),
- this.keypressSound.play())),
- '\\\\' === t)
- )
- this.mathlist.addRowAfter_();
- else if ('&' === t) this.mathlist.addColumnAfter_();
- else {
- const i = this.style;
- this.mathlist.insert(t, {
- mode: this.mode,
- style: this.mathlist.anchorStyle(),
- ...e,
- }),
- e.resetStyle && (this.style = i);
- }
- return (
- this.undoManager.snapshot(this.config),
- this._requestUpdate(),
- !0
- );
- }
- return !1;
- }
- switchMode_(t, e, i) {
- this._resetKeystrokeBuffer(),
- (this.smartModeSuppressed =
- /text|math/.test(this.mode) && /text|math/.test(t)),
- e &&
- this.$insert(e, {
- format: 'latex',
- mode: { math: 'text', text: 'math' }[t],
- }),
- this.mathlist.decorateCommandStringAroundInsertionPoint(!1),
- 'command' === t
- ? (this.mathlist.removeSuggestion(),
- Je.hidePopover(this),
- (this.suggestionIndex = 0),
- this.virtualKeyboardVisible &&
- this.switchKeyboardLayer_('lower-command'),
- this.mathlist.insert('', { mode: 'math' }))
- : (this.mode = t),
- i && this.$insert(i, { format: 'latex', mode: t }),
- 'function' == typeof this.config.onModeChange &&
- this.config.onModeChange(this, this.mode),
- this._requestUpdate();
- }
- complete_(t) {
- if (((t = t || {}), Je.hidePopover(this), t.discard))
- return (
- this.mathlist.spliceCommandStringAroundInsertionPoint(
- null
- ),
- this.switchMode_('math'),
- !0
- );
- const e = this.mathlist.extractCommandStringAroundInsertionPoint(
- !t.acceptSuggestion
- );
- if (e) {
- if ('\\(' === e || '\\)' === e)
- this.mathlist.spliceCommandStringAroundInsertionPoint(
- []
- ),
- this.mathlist.insert(e.slice(1), {
- mode: this.mode,
- });
- else {
- const t = 'math';
- if (At.commandAllowed(t, e)) {
- const i = he.parseTokens(
- n(e),
- t,
- null,
- this.config.macros
- );
- this.mathlist.spliceCommandStringAroundInsertionPoint(
- i
- );
- } else {
- const i = he.parseTokens(
- n(e),
- t,
- null,
- this.config.macros
- );
- i
- ? this.mathlist.spliceCommandStringAroundInsertionPoint(
- i
- )
- : this.mathlist.decorateCommandStringAroundInsertionPoint(
- !0
- );
- }
- }
- return (
- this.undoManager.snapshot(this.config),
- this._announce('replacement'),
- !0
- );
- }
- return !1;
- }
- _updateSuggestion() {
- this.mathlist.positionInsertionPointAfterCommitedCommand(),
- this.mathlist.removeSuggestion();
- const t = this.mathlist.extractCommandStringAroundInsertionPoint(),
- e = At.suggest(t);
- if (0 === e.length)
- Je.hidePopover(this),
- this.mathlist.decorateCommandStringAroundInsertionPoint(
- !0
- );
- else {
- const i = this.suggestionIndex % e.length,
- s = t.length - e[i].match.length;
- 0 !== s && this.mathlist.insertSuggestion(e[i].match, s),
- Je.showPopoverWithLatex(this, e[i].match, e.length > 1);
- }
- this._requestUpdate();
- }
- nextSuggestion_() {
- return (
- (this.suggestionIndex += 1), this._updateSuggestion(), !1
- );
- }
- previousSuggestion_() {
- if (((this.suggestionIndex -= 1), this.suggestionIndex < 0)) {
- this.mathlist.removeSuggestion();
- const t = this.mathlist.extractCommandStringAroundInsertionPoint(),
- e = At.suggest(t);
- this.suggestionIndex = e.length - 1;
- }
- return this._updateSuggestion(), !1;
- }
- _attachButtonHandlers(t, e) {
- const i = this;
- let s, a, o, n, r;
- 'object' == typeof e && (e.default || e.pressed)
- ? (e.default &&
- t.setAttribute(
- 'data-' + this.config.namespace + 'command',
- JSON.stringify(e.default)
- ),
- e.alt &&
- t.setAttribute(
- 'data-' + this.config.namespace + 'command-alt',
- JSON.stringify(e.alt)
- ),
- e.altshift &&
- t.setAttribute(
- 'data-' +
- this.config.namespace +
- 'command-altshift',
- JSON.stringify(e.altshift)
- ),
- e.shift &&
- t.setAttribute(
- 'data-' + this.config.namespace + 'command-shift',
- JSON.stringify(e.shift)
- ),
- e.pressed &&
- t.setAttribute(
- 'data-' +
- this.config.namespace +
- 'command-pressed',
- JSON.stringify(e.pressed)
- ),
- e.pressAndHoldStart &&
- t.setAttribute(
- 'data-' +
- this.config.namespace +
- 'command-pressAndHoldStart',
- JSON.stringify(e.pressAndHoldStart)
- ),
- e.pressAndHoldEnd &&
- t.setAttribute(
- 'data-' +
- this.config.namespace +
- 'command-pressAndHoldEnd',
- JSON.stringify(e.pressAndHoldEnd)
- ))
- : t.setAttribute(
- 'data-' + this.config.namespace + 'command',
- JSON.stringify(e)
- ),
- gs(t, 'mousedown touchstart:passive', function(e) {
- if ('mousedown' !== e.type || 1 === e.buttons) {
- e.stopPropagation(),
- e.preventDefault(),
- t.classList.add('pressed'),
- (s = Date.now()),
- 'touchstart' === e.type &&
- (o = e.changedTouches[0].identifier);
- const n = t.getAttribute(
- 'data-' + i.config.namespace + 'command-pressed'
- );
- n && i.$perform(JSON.parse(n));
- const l = t.getAttribute(
- 'data-' +
- i.config.namespace +
- 'command-pressAndHoldStart'
- );
- l &&
- ((a = t),
- r && clearTimeout(r),
- (r = window.setTimeout(function() {
- t.classList.contains('pressed') &&
- i.$perform(JSON.parse(l));
- }, 300)));
- }
- }),
- gs(t, 'mouseleave touchcancel', function() {
- t.classList.remove('pressed');
- }),
- gs(t, 'touchmove:passive', function(t) {
- t.preventDefault();
- for (let e = 0; e < t.changedTouches.length; e++)
- if (t.changedTouches[e].identifier === o) {
- const i = document.elementFromPoint(
- t.changedTouches[e].clientX,
- t.changedTouches[e].clientY
- );
- i !== n &&
- n &&
- (n.dispatchEvent(
- new MouseEvent('mouseleave'),
- { bubbles: !0 }
- ),
- (n = null)),
- i &&
- ((n = i),
- i.dispatchEvent(
- new MouseEvent('mouseenter', {
- bubbles: !0,
- buttons: 1,
- })
- ));
- }
- }),
- gs(t, 'mouseenter', function(e) {
- 1 === e.buttons && t.classList.add('pressed');
- }),
- gs(t, 'mouseup touchend click', function(e) {
- if (n) {
- e.stopPropagation(), e.preventDefault();
- const t = n;
- return (
- (n = null),
- void t.dispatchEvent(
- new MouseEvent('mouseup', { bubbles: !0 })
- )
- );
- }
- if (
- (t.classList.remove('pressed'),
- t.classList.add('active'),
- 'click' === e.type && 0 !== e.detail)
- )
- return e.stopPropagation(), void e.preventDefault();
- window.setTimeout(function() {
- t.classList.remove('active');
- }, 150);
- let o = t.getAttribute(
- 'data-' +
- i.config.namespace +
- 'command-pressAndHoldEnd'
- );
- const r = Date.now();
- (t !== a || r < s + 300) && (o = void 0),
- !o &&
- e.altKey &&
- e.shiftKey &&
- (o = t.getAttribute(
- 'data-' +
- i.config.namespace +
- 'command-altshift'
- )),
- !o &&
- e.altKey &&
- (o = t.getAttribute(
- 'data-' + i.config.namespace + 'command-alt'
- )),
- !o &&
- e.shiftKey &&
- (o = t.getAttribute(
- 'data-' +
- i.config.namespace +
- 'command-shift'
- )),
- o ||
- (o = t.getAttribute(
- 'data-' + i.config.namespace + 'command'
- )),
- o && i.$perform(JSON.parse(o)),
- e.stopPropagation(),
- e.preventDefault();
- });
- }
- _makeButton(t, e, i, s) {
- const a = document.createElement('span');
- return (
- (a.innerHTML = t),
- e && a.classList.add([].slice.call(e.split(' '))),
- i && a.setAttribute('aria-label', i),
- this._attachButtonHandlers(a, s),
- a
- );
- }
- showAlternateKeys_(t, e) {
- const i = bs(
- 'mathlive-alternate-keys-panel',
- 'ML__keyboard alternate-keys'
- );
- this.virtualKeyboard.classList.contains('material') &&
- i.classList.add('material'),
- e.length >= 7
- ? (i.style.width = '286px')
- : 4 === e.length || 2 === e.length
- ? (i.style.width = '146px')
- : 1 === e.length
- ? (i.style.width = '86px')
- : (i.style.width = '146px'),
- (i.style.height = 'auto');
- let s = '';
- for (const t of e)
- (s += ''),
- (i.innerHTML = s),
- ci.makeKeycap(
- this,
- i.getElementsByTagName('li'),
- 'performAlternateKeys'
- );
- const a = this.virtualKeyboard
- .querySelector(
- 'div.keyboard-layer.is-visible div.rows ul li[data-alt-keys="' +
- t +
- '"]'
- )
- .getBoundingClientRect();
- if (a) {
- a.top - i.clientHeight < 0 &&
- ((i.style.width = 'auto'),
- e.length <= 6
- ? (i.style.height = '56px')
- : e.length <= 12
- ? (i.style.height = '108px')
- : (i.style.height = '205px'));
- const t = (a.top - i.clientHeight + 5).toString() + 'px',
- s =
- Math.max(
- 0,
- Math.min(
- window.innerWidth - i.offsetWidth,
- (a.left + a.right - i.offsetWidth) / 2
- )
- ) + 'px';
- (i.style.transform = 'translate(' + s + ',' + t + ')'),
- i.classList.add('is-visible');
- }
- return !1;
- }
- hideAlternateKeys_() {
- const t = document.getElementById(
- 'mathlive-alternate-keys-panel'
- );
- return (
- t &&
- (t.classList.remove('is-visible'),
- (t.innerHTML = ''),
- xs(t)),
- !1
- );
- }
- performAlternateKeys_(t) {
- return this.hideAlternateKeys_(), this.$perform(t);
- }
- switchKeyboardLayer_(t) {
- if ('off' !== this.config.virtualKeyboardMode) {
- 'lower-command' !== t &&
- 'upper-command' !== t &&
- 'symbols-command' !== t &&
- this.complete_(),
- this.showVirtualKeyboard_(),
- this.hideAlternateKeys_(),
- this.unshiftKeyboardLayer_();
- const e = this.virtualKeyboard.getElementsByClassName(
- 'keyboard-layer'
- );
- let i = !1;
- for (let s = 0; s < e.length; s++)
- if (e[s].dataset.layer === t) {
- i = !0;
- break;
- }
- if (i)
- for (let i = 0; i < e.length; i++)
- e[i].dataset.layer === t
- ? e[i].classList.add('is-visible')
- : e[i].classList.remove('is-visible');
- this.$focus();
- }
- return !0;
- }
- shiftKeyboardLayer_() {
- const t = this.virtualKeyboard.querySelectorAll(
- 'div.keyboard-layer.is-visible .rows .keycap, div.keyboard-layer.is-visible .rows .action'
- );
- if (t)
- for (let e = 0; e < t.length; e++) {
- const i = t[e];
- let s = i.getAttribute('data-shifted');
- if (s || /^[a-z]$/.test(i.innerHTML)) {
- i.setAttribute(
- 'data-unshifted-content',
- i.innerHTML
- ),
- s || (s = i.innerHTML.toUpperCase()),
- (i.innerHTML = s);
- const t = i.getAttribute(
- 'data-' + this.config.namespace + 'command'
- );
- if (t) {
- i.setAttribute('data-unshifted-command', t);
- const e = i.getAttribute(
- 'data-shifted-command'
- );
- if (e)
- i.setAttribute(
- 'data-' +
- this.config.namespace +
- 'command',
- e
- );
- else {
- const e = JSON.parse(t);
- Array.isArray(e) &&
- (e[1] = e[1].toUpperCase()),
- i.setAttribute(
- 'data-' +
- this.config.namespace +
- 'command',
- JSON.stringify(e)
- );
- }
- }
- }
- }
- return !1;
- }
- unshiftKeyboardLayer_() {
- const t = this.virtualKeyboard.querySelectorAll(
- 'div.keyboard-layer.is-visible .rows .keycap, div.keyboard-layer.is-visible .rows .action'
- );
- if (t)
- for (let e = 0; e < t.length; e++) {
- const i = t[e],
- s = i.getAttribute('data-unshifted-content');
- s && (i.innerHTML = s);
- const a = i.getAttribute('data-unshifted-command');
- a &&
- i.setAttribute(
- 'data-' + this.config.namespace + 'command',
- a
- );
- }
- return !1;
- }
- insertAndUnshiftKeyboardLayer_(t) {
- return this.$insert(t), this.unshiftKeyboardLayer_(), !0;
- }
- toggleVirtualKeyboardAlt_() {
- let t = !1;
- return (
- this.virtualKeyboard &&
- ((t = this.virtualKeyboard.classList.contains(
- 'material'
- )),
- this.virtualKeyboard.remove(),
- delete this.virtualKeyboard,
- (this.virtualKeyboard = null)),
- this.showVirtualKeyboard_(t ? '' : 'material'),
- !1
- );
- }
- toggleVirtualKeyboardShift_() {
- this.config.virtualKeyboardLayout = {
- qwerty: 'azerty',
- azerty: 'qwertz',
- qwertz: 'dvorak',
- dvorak: 'colemak',
- colemak: 'qwerty',
- }[this.config.virtualKeyboardLayout];
- let t = this.virtualKeyboard
- ? this.virtualKeyboard.querySelector(
- 'div.keyboard-layer.is-visible'
- )
- : null;
- return (
- (t = t ? t.id : ''),
- this.virtualKeyboard &&
- (this.virtualKeyboard.remove(),
- delete this.virtualKeyboard,
- (this.virtualKeyboard = null)),
- this.showVirtualKeyboard_(),
- t && this.switchKeyboardLayer_(t),
- !1
- );
- }
- showVirtualKeyboard_(t) {
- return (
- (this.virtualKeyboardVisible = !1),
- this.toggleVirtualKeyboard_(t),
- !1
- );
- }
- hideVirtualKeyboard_() {
- return (
- (this.virtualKeyboardVisible = !0),
- this.toggleVirtualKeyboard_(),
- !1
- );
- }
- toggleVirtualKeyboard_(t) {
- if (
- ((this.virtualKeyboardVisible = !this
- .virtualKeyboardVisible),
- this.virtualKeyboardVisible)
- ) {
- this.virtualKeyboard
- ? this.virtualKeyboard.classList.add('is-visible')
- : ((this.virtualKeyboard = ci.make(this, t)),
- gs(
- this.virtualKeyboard,
- 'touchstart:passive mousedown',
- function() {
- e.$focus();
- }
- ),
- document.body.appendChild(this.virtualKeyboard));
- const e = this;
- window.setTimeout(function() {
- e.virtualKeyboard.classList.add('is-visible');
- }, 1);
- } else
- this.virtualKeyboard &&
- this.virtualKeyboard.classList.remove('is-visible');
- return (
- 'function' == typeof this.config.onVirtualKeyboardToggle &&
- this.config.onVirtualKeyboardToggle(
- this,
- this.virtualKeyboardVisible,
- this.virtualKeyboard
- ),
- !1
- );
- }
- $applyStyle(t) {
- if (
- (this._resetKeystrokeBuffer(),
- (t = (function(t) {
- const e = {};
- return (
- 'string' == typeof t.mode &&
- (e.mode = t.mode.toLowerCase()),
- 'string' == typeof t.color && (e.color = t.color),
- 'string' == typeof t.backgroundColor &&
- (e.backgroundColor = t.backgroundColor),
- 'string' == typeof t.fontFamily &&
- (e.fontFamily = t.fontFamily),
- 'string' == typeof t.series &&
- (e.fontSeries = t.series),
- 'string' == typeof t.fontSeries &&
- (e.fontSeries = t.fontSeries.toLowerCase()),
- e.fontSeries &&
- (e.fontSeries =
- { bold: 'b', medium: 'm', normal: 'mn' }[
- e.fontSeries
- ] || e.fontSeries),
- 'string' == typeof t.shape &&
- (e.fontShape = t.shape),
- 'string' == typeof t.fontShape &&
- (e.fontShape = t.fontShape.toLowerCase()),
- e.fontShape &&
- (e.fontShape =
- {
- italic: 'it',
- up: 'n',
- upright: 'n',
- normal: 'n',
- }[e.fontShape] || e.fontShape),
- 'string' == typeof t.size
- ? (e.fontSize = t.size)
- : 'number' == typeof t.size &&
- (e.fontSize =
- 'size' +
- Math.min(0, Math.max(10, t.size))),
- 'string' == typeof t.fontSize &&
- (e.fontSize = t.fontSize.toLowerCase()),
- e.fontSize &&
- (e.fontSize =
- {
- tiny: 'size1',
- scriptsize: 'size2',
- footnotesize: 'size3',
- small: 'size4',
- normal: 'size5',
- normalsize: 'size5',
- large: 'size6',
- Large: 'size7',
- LARGE: 'size8',
- huge: 'size9',
- Huge: 'size10',
- }[e.fontSize] || e.fontSize),
- e
- );
- })(t)).mode)
- ) {
- if (this.mathlist.isCollapsed()) this.switchMode_(t.mode);
- else {
- const t = this.mode,
- e =
- 'math' ===
- (this.mathlist.anchorMode() ||
- this.config.default)
- ? 'text'
- : 'math';
- let i = this.$selectedText('ASCIIMath');
- if (
- ('math' === e &&
- /^"[^"]+"$/.test(i) &&
- (i = i.slice(1, -1)),
- this.$insert(i, {
- mode: e,
- selectionMode: 'item',
- format: 'text' === e ? 'text' : 'ASCIIMath',
- }),
- (this.mode = e),
- this.groupIsSelected())
- ) {
- const t = this.mathlist.parent();
- !t ||
- ('group' !== t.type && 'root' !== t.type) ||
- (t.mode = e);
- }
- this.mode !== t &&
- 'function' == typeof this.config.onModeChange &&
- this.config.onModeChange(this, this.mode);
- }
- delete t.mode;
- }
- return (
- this.mathlist.isCollapsed()
- ? (this.style.fontSeries &&
- t.fontSeries === this.style.fontSeries &&
- (t.fontSeries = 'auto'),
- t.fontShape &&
- t.fontShape === this.style.fontShape &&
- (t.fontShape = 'auto'),
- t.color &&
- t.color === this.style.color &&
- (t.color = 'none'),
- t.backgroundColor &&
- t.backgroundColor ===
- this.style.backgroundColor &&
- (t.backgroundColor = 'none'),
- t.fontSize &&
- t.fontSize === this.style.fontSize &&
- (t.fontSize = 'auto'),
- (this.style = { ...this.style, ...t }))
- : (this.mathlist._applyStyle(t),
- this.undoManager.snapshot(this.config)),
- !0
- );
- }
- $hasFocus() {
- return (
- document.hasFocus() &&
- document.activeElement === this.textarea
- );
- }
- $focus() {
- this.$hasFocus() ||
- (this.textarea.focus && this.textarea.focus(),
- this._announce('line'));
- }
- $blur() {
- this.$hasFocus() && this.textarea.blur && this.textarea.blur();
- }
- $select() {
- this.mathlist.selectAll_();
- }
- $clearSelection() {
- this.mathlist.delete_();
- }
- $keystroke(t, e) {
- return this._onKeystroke(t, e);
- }
- $typedText(t) {
- this._onTypedText(t);
- }
- typedText_(t, e) {
- return this._onTypedText(t, e);
- }
- $setConfig(t) {
- if (
- (this.config ||
- (this.config = {
- smartFence: !0,
- smartSuperscript: !0,
- scriptDepth: [1 / 0, 1 / 0],
- removeExtraneousParentheses: !0,
- overrideDefaultInlineShortcuts: !1,
- virtualKeyboard: '',
- virtualKeyboardLayout: 'qwerty',
- namespace: '',
- }),
- (this.config = { ...this.config, ...t }),
- void 0 !== this.config.scriptDepth &&
- !Array.isArray(this.config.scriptDepth))
- ) {
- const t = parseInt(this.config.scriptDepth);
- this.config.scriptDepth = [t, t];
- }
- if (
- (void 0 === this.config.removeExtraneousParentheses &&
- (this.config.removeExtraneousParentheses = !0),
- (this.config.onAnnounce = t.onAnnounce || Ms),
- (this.config.macros = Object.assign(
- {},
- At.MACROS,
- this.config.macros
- )),
- !/^[a-z]*[-]?$/.test(this.config.namespace))
- )
- throw Error(
- 'options.namespace must be a string of lowercase characters only'
- );
- /-$/.test(this.config.namespace) ||
- (this.config.namespace += '-'),
- (Qe.locale = this.config.locale || Qe.locale),
- Qe.merge(this.config.strings),
- (this.config.virtualKeyboardLayout =
- t.virtualKeyboardLayout ||
- {
- fr: 'azerty',
- be: 'azerty',
- al: 'qwertz',
- ba: 'qwertz',
- cz: 'qwertz',
- de: 'qwertz',
- hu: 'qwertz',
- sk: 'qwertz',
- ch: 'qwertz',
- }[Qe.locale.substring(0, 2)] ||
- 'qwerty'),
- (this.keypressSound = void 0),
- (this.spacebarKeypressSound = void 0),
- (this.returnKeypressSound = void 0),
- (this.deleteKeypressSound = void 0),
- this.config.keypressSound &&
- ('string' == typeof this.config.keypressSound
- ? ((this.keypressSound = new Audio()),
- (this.keypressSound.preload = 'none'),
- (this.keypressSound.src = this.config.keypressSound),
- (this.keypressSound.volume = 0.5),
- (this.spacebarKeypressSound = this.keypressSound),
- (this.returnKeypressSound = this.keypressSound),
- (this.deleteKeypressSound = this.keypressSound))
- : ((this.keypressSound = new Audio()),
- (this.keypressSound.preload = 'none'),
- (this.keypressSound.src = this.config.keypressSound.default),
- (this.keypressSound.volume = 0.5),
- (this.spacebarKeypressSound = this.keypressSound),
- (this.returnKeypressSound = this.keypressSound),
- (this.deleteKeypressSound = this.keypressSound),
- this.config.keypressSound.spacebar &&
- ((this.spacebarKeypressSound = new Audio()),
- (this.spacebarKeypressSound.preload = 'none'),
- (this.spacebarKeypressSound.src = this.config.keypressSound.spacebar),
- (this.spacebarKeypressSound.volume = 0.5)),
- this.config.keypressSound.return &&
- ((this.returnKeypressSound = new Audio()),
- (this.returnKeypressSound.preload = 'none'),
- (this.returnKeypressSound.src = this.config.keypressSound.return),
- (this.returnKeypressSound.volume = 0.5)),
- this.config.keypressSound.delete &&
- ((this.deleteKeypressSound = new Audio()),
- (this.deleteKeypressSound.preload = 'none'),
- (this.deleteKeypressSound.src = this.config.keypressSound.delete),
- (this.deleteKeypressSound.volume = 0.5)))),
- this.config.plonkSound &&
- ((this.plonkSound = new Audio()),
- (this.plonkSound.preload = 'none'),
- (this.plonkSound.src = this.config.plonkSound),
- (this.plonkSound.volume = 0.5));
- }
- speak_(t, e) {
- e = e || { withHighlighting: !1 };
- const i = (function(t, e) {
- let i = null;
- switch (e) {
- case 'all':
- i = t.mathlist.root;
- break;
- case 'selection':
- t.mathlist.isCollapsed() ||
- (i = t.mathlist.getSelectedAtoms());
- break;
- case 'left': {
- const e = t.mathlist.siblings(),
- s = t.mathlist.startOffset();
- if (s >= 1) {
- i = [];
- for (let t = 1; t <= s; t++) i.push(e[t]);
- }
- break;
- }
- case 'right': {
- const e = t.mathlist.siblings(),
- s = t.mathlist.endOffset() + 1;
- if (s <= e.length - 1) {
- i = [];
- for (let t = s; t <= e.length - 1; t++)
- i.push(e[t]);
- }
- break;
- }
- case 'start':
- case 'end':
- break;
- case 'group':
- i = t.mathlist.siblings();
- break;
- case 'parent': {
- const e = t.mathlist.parent();
- e && 'root' !== e.type && (i = t.mathlist.parent());
- break;
- }
- }
- return i;
- })(this, t);
- if (null === i)
- return (
- this.config.handleSpeak(
- (function(t) {
- let e = '';
- switch (t) {
- case 'all':
- break;
- case 'selection':
- e = 'no selection';
- break;
- case 'left':
- e = 'at start';
- break;
- case 'right':
- e = 'at end';
- break;
- case 'group':
- break;
- case 'parent':
- e = 'no parent';
- }
- return e;
- })(t)
- ),
- !1
- );
- const s = { ...this.config };
- (e.withHighlighting || 'amazon' === s.speechEngine) &&
- ((s.textToSpeechMarkup =
- window.sre && 'sre' === s.textToSpeechRules
- ? 'ssml_step'
- : 'ssml'),
- e.withHighlighting && (s.generateID = !0));
- const a = te.toSpeakableText(i, s);
- return (
- e.withHighlighting
- ? ((window.mathlive.readAloudMathField = this),
- this._render({ forHighlighting: !0 }),
- this.config.handleReadAloud &&
- this.config.handleReadAloud(
- this.field,
- a,
- this.config
- ))
- : this.config.handleSpeak &&
- this.config.handleSpeak(a, s),
- !1
- );
- }
- }
- let ws,
- Ss = 0;
- function As(t, e, i) {
- const s = Object.assign({}, t.config);
- return (
- (s.textToSpeechMarkup = ''),
- (s.textToSpeechRulesOptions = s.textToSpeechRulesOptions || {}),
- (s.textToSpeechRulesOptions.markup = 'none'),
- e + te.toSpeakableText(i, s)
- );
- }
- function Ms(t, e, i, s) {
- let a = '';
- 'plonk' === e
- ? (t.plonkSound &&
- (t.plonkSound.load(), t.plonkSound.play().catch(t => {})),
- t._resetKeystrokeBuffer())
- : 'delete' === e
- ? (a = As(t, 'deleted: ', s))
- : 'focus' === e || /move/.test(e)
- ? (a =
- (t.mathlist.isCollapsed() ? '' : 'selected: ') +
- t._nextAtomSpeechText(i))
- : 'replacement' === e
- ? (a = As(t, '', t.mathlist.sibling(0)))
- : 'line' === e
- ? ((a = As(t, '', t.mathlist.root)),
- (t.accessibleNode.innerHTML =
- ''),
- t.textarea.setAttribute('aria-label', 'after: ' + a))
- : (a = s ? As(t, e + ' ', s) : e);
- const o = /\u00a0/.test(t.ariaLiveText.textContent) ? ' ' : ' ';
- t.ariaLiveText.textContent = a + o;
- }
- (vs.prototype.undo_ = vs.prototype.undo),
- (vs.prototype.redo_ = vs.prototype.redo),
- (vs.prototype.scrollIntoView_ = vs.prototype.scrollIntoView),
- (vs.prototype.scrollToStart_ = vs.prototype.scrollToStart),
- (vs.prototype.scrollToEnd_ = vs.prototype.scrollToEnd),
- (vs.prototype.insert_ = vs.prototype.$insert);
- var Cs = { isValidMathfield: ks, MathField: vs };
- function _s(t, e, i) {
- let s = i,
- a = 0;
- const o = t.length;
- for (; s < e.length; ) {
- const i = e[s];
- if (a <= 0 && e.slice(s, s + o) === t) return s;
- '\\' === i ? s++ : '{' === i ? a++ : '}' === i && a--, s++;
- }
- return -1;
- }
- function Ts(t, e, i, s) {
- const a = [];
- for (let o = 0; o < t.length; o++)
- if ('text' === t[o].type) {
- const n = t[o].data;
- let r,
- l = !0,
- c = 0;
- (r = n.indexOf(e)),
- -1 !== r &&
- ((c = r),
- c > 0 &&
- a.push({ type: 'text', data: n.slice(0, c) }),
- (l = !1));
- let h = !1;
- for (; !h; ) {
- if (l) {
- if (((r = n.indexOf(e, c)), -1 === r)) {
- h = !0;
- break;
- }
- c !== r &&
- a.push({ type: 'text', data: n.slice(c, r) }),
- (c = r);
- } else {
- if (((r = _s(i, n, c + e.length)), -1 === r)) {
- h = !0;
- break;
- }
- a.push({
- type: 'math',
- data: n.slice(c + e.length, r),
- rawData: n.slice(c, r + i.length),
- mathstyle: s,
- }),
- (c = r + i.length);
- }
- l = !l;
- }
- c < n.length && a.push({ type: 'text', data: n.slice(c) });
- } else a.push(t[o]);
- return a;
- }
- function Ls(t, e) {
- let i = [{ type: 'text', data: t }];
- for (let t = 0; t < e.inline.length; t++) {
- const s = e.inline[t];
- i = Ts(i, s[0], s[1], 'textstyle');
- }
- for (let t = 0; t < e.display.length; t++) {
- const s = e.display[t];
- i = Ts(i, s[0], s[1], 'displaystyle');
- }
- return i;
- }
- function Fs(t, e, i, s) {
- const a = (function(t, e, i, s) {
- let a = document.createElement('span');
- a.setAttribute('aria-hidden', 'true'),
- e.preserveOriginalContent &&
- (a.setAttribute(
- 'data-' + e.namespace + 'original-content',
- t
- ),
- i &&
- a.setAttribute(
- 'data-' + e.namespace + 'original-mathstyle',
- i
- ));
- try {
- a.innerHTML = e.renderToMarkup(
- t,
- i || 'displaystyle',
- 'html',
- e.macros
- );
- } catch (e) {
- if (!s) return null;
- a = document.createTextNode(t);
- }
- return a;
- })(t, i, e, s);
- if (
- a &&
- /\b(mathml|speakable-text)\b/i.test(i.renderAccessibleContent)
- ) {
- const e = document.createDocumentFragment();
- if (
- (/\bmathml\b/i.test(i.renderAccessibleContent) &&
- i.renderToMathML &&
- e.appendChild(
- (function(t, e) {
- const i = document.createElement('span');
- try {
- i.innerHTML =
- "';
- } catch (e) {
- i.textContent = t;
- }
- return (i.className = 'sr-only'), i;
- })(t, i)
- ),
- /\bspeakable-text\b/i.test(i.renderAccessibleContent) &&
- i.renderToSpeakableText)
- ) {
- const s = document.createElement('span');
- (s.innerHTML = i.renderToSpeakableText(t, i)),
- (s.className = 'sr-only'),
- e.appendChild(s);
- }
- return e.appendChild(a), e;
- }
- return a;
- }
- function Ds(t, e) {
- let i = null;
- if (e.TeX.processEnvironments && /^\s*\\begin/.test(t))
- (i = document.createDocumentFragment()),
- i.appendChild(Fs(t, void 0, e, !0));
- else {
- const s = Ls(t, e.TeX.delimiters);
- if (1 === s.length && 'text' === s[0].type) return null;
- i = document.createDocumentFragment();
- for (let t = 0; t < s.length; t++)
- 'text' === s[t].type
- ? i.appendChild(document.createTextNode(s[t].data))
- : i.appendChild(Fs(s[t].data, s[t].mathstyle, e, !0));
- }
- return i;
- }
- const zs = {
- namespace: '',
- skipTags: [
- 'noscript',
- 'style',
- 'textarea',
- 'pre',
- 'code',
- 'annotation',
- 'annotation-xml',
- ],
- processScriptType: 'math/tex',
- ignoreClass: 'tex2jax_ignore',
- processClass: 'tex2jax_process',
- preserveOriginalContent: !0,
- renderAccessibleContent: 'mathml',
- TeX: {
- disabled: !1,
- processEnvironments: !0,
- delimiters: {
- inline: [['\\(', '\\)']],
- display: [
- ['$$', '$$'],
- ['\\[', '\\]'],
- ],
- },
- },
- };
- var Es = {
- renderMathInElement: function(t, e) {
- try {
- if (
- (((e = Object.assign(
- {},
- zs,
- e
- )).ignoreClassPattern = new RegExp(e.ignoreClass)),
- (e.processClassPattern = new RegExp(e.processClass)),
- (e.processScriptTypePattern = new RegExp(
- e.processScriptType
- )),
- (e.macros = At.MACROS),
- e.namespace)
- ) {
- if (!/^[a-z]+[-]?$/.test(e.namespace))
- throw Error(
- 'options.namespace must be a string of lowercase characters only'
- );
- /-$/.test(e.namespace) || (e.namespace += '-');
- }
- !(function t(e, i) {
- const s = e.getAttribute(
- 'data-' + i.namespace + 'original-content'
- );
- if (s) {
- const t = Fs(
- s,
- e.getAttribute(
- 'data-' + i.namespace + 'mathstyle'
- ),
- i,
- !1
- );
- null != t &&
- ((e.textContent = ''), e.appendChild(t));
- } else {
- if (
- 1 === e.childNodes.length &&
- 3 === e.childNodes[0].nodeType
- ) {
- const t = e.childNodes[0].textContent;
- if (
- i.TeX.processEnvironments &&
- /^\s*\\begin/.test(t)
- )
- return (
- (e.textContent = ''),
- void e.appendChild(Fs(t, void 0, i, !0))
- );
- const s = Ls(t, i.TeX.delimiters);
- if (1 === s.length && 'math' === s[0].type)
- return (
- (e.textContent = ''),
- void e.appendChild(
- Fs(s[0].data, s[0].mathstyle, i, !0)
- )
- );
- if (1 === s.length && 'text' === s[0].type)
- return;
- }
- for (let s = 0; s < e.childNodes.length; s++) {
- const a = e.childNodes[s];
- if (3 === a.nodeType) {
- const t = Ds(a.textContent, i);
- t &&
- ((s += t.childNodes.length - 1),
- e.replaceChild(t, a));
- } else if (1 === a.nodeType) {
- const e = a.nodeName.toLowerCase();
- if (
- 'script' === e &&
- i.processScriptTypePattern.test(a.type)
- ) {
- let t = 'displaystyle';
- for (const e of a.type.split(';')) {
- const i = e.split('=');
- 'mode' === i[0].toLowerCase() &&
- (t =
- 'display' ===
- i[1].toLoweCase()
- ? 'displaystyle'
- : 'textstyle');
- }
- const e = Fs(a.textContent, t, i, !0);
- a.parentNode.replaceChild(e, a);
- } else
- (i.processClassPattern.test(
- a.className
- ) ||
- (!i.skipTags.includes(e) &&
- !i.ignoreClassPattern.test(
- a.className
- ))) &&
- t(a, i);
- }
- }
- }
- })(t, e);
- } catch (t) {
- Error;
- }
- },
- };
- function qs(t, e, i, s) {
- e = e || 'displaystyle';
- const a = n(t),
- o = he.parseTokens(a, 'math', null, s);
- if ('mathlist' === i) return o;
- let r = te.decompose({ mathstyle: e }, o);
- if (((r = $.coalesce(r)), 'span' === i)) return r;
- const l = $.makeSpan(r, 'ML__base'),
- c = $.makeSpan('', 'ML__strut');
- c.setStyle('height', l.height, 'em');
- const h = [c];
- if (0 !== l.depth) {
- const t = $.makeSpan('', 'ML__strut--bottom');
- t.setStyle('height', l.height + l.depth, 'em'),
- t.setStyle('vertical-align', -l.depth, 'em'),
- h.push(t);
- }
- return h.push(l), $.makeSpan(h, 'ML__mathlive').toMarkup();
- }
- function Ps(t, e) {
- if (!te.toMathML) return '';
- ((e = e || {}).macros = e.macros || {}),
- Object.assign(e.macros, At.MACROS);
- const i = he.parseTokens(n(t), 'math', null, e.macros);
- return te.toMathML(i, e);
- }
- function Is(t, e) {
- if (!te.toSpeakableText) return '';
- ((e = e || {}).macros = e.macros || {}),
- Object.assign(e.macros, At.MACROS);
- const i = he.parseTokens(n(t), 'math', null, e.macros);
- return te.toSpeakableText(i, e);
- }
- function Bs(t, e) {
- if (
- (!e &&
- window &&
- window.mathlive &&
- (e = window.mathlive.config),
- (e = e || {}).speechEngine && 'local' !== e.speechEngine)
- )
- if ('amazon' === e.speechEngine) {
- if (window && window.AWS) {
- const i = new window.AWS.Polly({
- apiVersion: '2016-06-10',
- }),
- s = {
- OutputFormat: 'mp3',
- VoiceId: e.speechEngineVoice || 'Joanna',
- Text: t,
- TextType: 'ssml',
- };
- i.synthesizeSpeech(s, function(t, e) {
- if (t);
- else if (e && e.AudioStream) {
- const t = new Uint8Array(e.AudioStream),
- i = new Blob([t.buffer], {
- type: 'audio/mpeg',
- }),
- s = URL.createObjectURL(i);
- new Audio(s).play().catch(t => {});
- }
- });
- }
- } else e.speechEngine;
- else {
- const e = new SpeechSynthesisUtterance(t);
- window && window.speechSynthesis.speak(e);
- }
- }
- function Os(t, e, i) {
- if (!window) return;
- if (
- (!i && window.mathlive && (i = window.mathlive.config),
- 'amazon' !== (i = i || {}).speechEngine)
- )
- return void (i.handleSpeak && i.handleSpeak(e));
- if (!window.AWS) return;
- const s = new window.AWS.Polly({ apiVersion: '2016-06-10' }),
- a = {
- OutputFormat: 'json',
- VoiceId: i.speechEngineVoice || 'Joanna',
- Text: e,
- TextType: 'ssml',
- SpeechMarkTypes: ['ssml'],
- };
- (window.mathlive = window.mathlive || {}),
- (window.mathlive.readAloudElement = t);
- const o = i.onReadAloudStatus || window.mathlive.onReadAloudStatus;
- s.synthesizeSpeech(a, function(t, e) {
- if (t);
- else if (e && e.AudioStream) {
- const t = new TextDecoder('utf-8').decode(
- new Uint8Array(e.AudioStream)
- );
- (window.mathlive.readAloudMarks = t
- .split('\n')
- .map(t => (t ? JSON.parse(t) : {}))),
- (window.mathlive.readAloudTokens = []);
- for (const t of window.mathlive.readAloudMarks)
- t.value &&
- window.mathlive.readAloudTokens.push(t.value);
- (window.mathlive.readAloudCurrentMark = ''),
- (a.OutputFormat = 'mp3'),
- (a.SpeechMarkTypes = []),
- s.synthesizeSpeech(a, function(t, e) {
- if (t);
- else if (e && e.AudioStream) {
- const t = new Uint8Array(e.AudioStream),
- i = new Blob([t.buffer], {
- type: 'audio/mpeg',
- }),
- s = URL.createObjectURL(i);
- window.mathlive.readAloudAudio
- ? window.mathlive.readAloudAudio.pause()
- : ((window.mathlive.readAloudAudio = new Audio()),
- window.mathlive.readAloudAudio.addEventListener(
- 'ended',
- () => {
- o &&
- o(
- window.mathlive
- .readAloudMathField,
- 'ended'
- ),
- window.mathlive
- .readAloudMathField
- ? (window.mathlive.readAloudMathField._render(),
- (window.mathlive.readAloudElement = null),
- (window.mathlive.readAloudMathField = null),
- (window.mathlive.readAloudTokens = []),
- (window.mathlive.readAloudMarks = []),
- (window.mathlive.readAloudCurrentMark =
- ''))
- : (function t(e) {
- e.classList.remove(
- 'highlight'
- ),
- e.children &&
- Array.from(
- e.children
- ).forEach(
- e => {
- t(
- e
- );
- }
- );
- })(
- window.mathlive
- .readAloudElement
- );
- }
- ),
- window.mathlive.readAloudAudio.addEventListener(
- 'timeupdate',
- () => {
- let t = '';
- const e =
- 1e3 *
- window.mathlive
- .readAloudAudio
- .currentTime +
- 100;
- for (const i of window.mathlive
- .readAloudMarks)
- i.time < e && (t = i.value);
- window.mathlive
- .readAloudCurrentMark !== t &&
- ((window.mathlive.readAloudCurrentToken = t),
- t &&
- t ===
- window.mathlive
- .readAloudFinalToken
- ? window.mathlive.readAloudAudio.pause()
- : ((window.mathlive.readAloudCurrentMark = t),
- (function t(e, i) {
- i &&
- e.dataset.atomId !==
- i
- ? (e.classList.remove(
- 'highlight'
- ),
- e.children &&
- e.children
- .length >
- 0 &&
- Array.from(
- e.children
- ).forEach(
- e => {
- t(
- e,
- i
- );
- }
- ))
- : (e.classList.add(
- 'highlight'
- ),
- e.children &&
- e.children
- .length >
- 0 &&
- Array.from(
- e.children
- ).forEach(
- e => {
- t(
- e
- );
- }
- ));
- })(
- window.mathlive
- .readAloudElement,
- window.mathlive
- .readAloudCurrentMark
- )));
- }
- )),
- (window.mathlive.readAloudAudio.src = s),
- o &&
- o(
- window.mathlive.readAloudMathField,
- 'playing'
- ),
- window.mathlive.readAloudAudio.play();
- }
- });
- }
- });
- }
- function Rs(t) {
- let e = t;
- if ('string' == typeof t && ((e = document.getElementById(t)), !e))
- throw Error(`The element with ID "${t}" could not be found.`);
- return e;
- }
- function Ks(t, e) {
- Es &&
- (((e = e || {}).renderToMarkup = e.renderToMarkup || qs),
- (e.renderToMathML = e.renderToMathML || Ps),
- (e.renderToSpeakableText = e.renderToSpeakableText || Is),
- (e.macros = e.macros || At.MACROS),
- Es.renderMathInElement(Rs(t), e));
- }
- function Ns(t) {
- if (t.namespace) {
- if (!/^[a-z]+[-]?$/.test(t.namespace))
- throw Error(
- 'options.namespace must be a string of lowercase characters only'
- );
- /-$/.test(t.namespace) || (t.namespace += '-');
- }
- }
- return {
- latexToMarkup: qs,
- latexToMathML: Ps,
- latexToSpeakableText: Is,
- latexToAST: function(t, e) {
- if (!te.toAST) return {};
- ((e = e || {}).macros = e.macros || {}),
- Object.assign(e.macros, At.MACROS);
- const i = he.parseTokens(n(t), 'math', null, e.macros);
- return te.toAST(i, e);
- },
- astToLatex: function(t, e) {
- return ps(t, e);
- },
- makeMathField: function(t, e) {
- if (!Cs) throw Error('The MathField module is not loaded.');
- return (
- ((e = e || {}).handleSpeak = e.handleSpeak || Bs),
- (e.handleReadAloud = e.handleReadAloud || Os),
- new Cs.MathField(Rs(t), e)
- );
- },
- renderMathInDocument: function(t) {
- Ks(document.body, t);
- },
- renderMathInElement: Ks,
- revertToOriginalContent: function(t, e) {
- (t = (t = Rs(t)).children[1]) instanceof Cs.MathField
- ? t.revertToOriginalContent()
- : (Ns((e = e || {})),
- (t.innerHTML = t.getAttribute(
- 'data-' + (e.namespace || '') + 'original-content'
- )));
- },
- getOriginalContent: function(t, e) {
- return (t = (t = Rs(t)).children[1]) instanceof Cs.MathField
- ? t.originalContent
- : (Ns((e = e || {})),
- t.getAttribute(
- 'data-' + (e.namespace || '') + 'original-content'
- ));
- },
- readAloud: Os,
- readAloudStatus: function() {
- return window
- ? ((window.mathlive = window.mathlive || {}),
- window.mathlive.readAloudAudio
- ? window.mathlive.readAloudAudio.paused
- ? 'paused'
- : window.mathlive.readAloudAudio.ended
- ? 'ready'
- : 'playing'
- : 'ready')
- : 'unavailable';
- },
- pauseReadAloud: function() {
- window &&
- ((window.mathlive = window.mathlive || {}),
- window.mathlive.readAloudAudio &&
- (window.mathlive.onReadAloudStatus &&
- window.mathlive.onReadAloudStatus(
- window.mathlive.readAloudMathField,
- 'paused'
- ),
- window.mathlive.readAloudAudio.pause()));
- },
- resumeReadAloud: function() {
- window &&
- ((window.mathlive = window.mathlive || {}),
- window.mathlive.readAloudAudio &&
- (window.mathlive.onReadAloudStatus &&
- window.mathlive.onReadAloudStatus(
- window.mathlive.readAloudMathField,
- 'playing'
- ),
- window.mathlive.readAloudAudio.play()));
- },
- playReadAloud: function(t, e) {
- if (
- window &&
- ((window.mathlive = window.mathlive || {}),
- window.mathlive.readAloudAudio)
- ) {
- let i = 0;
- if (((window.mathlive.readAloudFinalToken = null), t)) {
- window.mathlive.readAloudMarks =
- window.mathlive.readAloudMarks || [];
- for (const e of window.mathlive.readAloudMarks)
- e.value === t && (i = e.time / 1e3);
- let s = window.mathlive.readAloudTokens.indexOf(t);
- s >= 0 &&
- ((s += e),
- s < window.mathlive.readAloudTokens.length &&
- (window.mathlive.readAloudFinalToken = s));
- }
- (window.mathlive.readAloudAudio.currentTime = i),
- window.mathlive.onReadAloudStatus &&
- window.mathlive.onReadAloudStatus(
- window.mathlive.readAloudMathField,
- 'playing'
- ),
- window.mathlive.readAloudAudio.play();
- }
- },
- };
- }),
- 'object' == typeof exports && 'undefined' != typeof module
- ? (module.exports = factory())
- : 'function' == typeof define && define.amd
- ? define(factory)
- : ((global = global || self).MathLive = factory());
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o;if(a.height=s,a.maxFontSize=1,"overline"===this.position)o=Wt(t,[i,3*s,a,s]);else{const e=$t(i);o=Wt(t,[s,a,3*s,e],"top",N.height(e))}return Rt(o,this.position)}decomposeOverunder(t){const e=Jt(t,this.body),i=t.clone({mathstyle:"scriptstyle"}),s=this.overscript?$t(Jt(i,this.overscript),t.mathstyle.adjustTo(i.mathstyle)):null,a=this.underscript?$t(Jt(i,this.underscript),t.mathstyle.adjustTo(i.mathstyle)):null;return Xt(t,e,0,0,s,a,this.mathtype||"mrel")}decomposeOverlap(t){const e=$t(Jt(t,this.body),"inner");return Rt([e,$t(null,"fix")],"left"===this.align?"llap":"rlap")}decomposeRule(t){const e=t.mathstyle,i=Rt("","rule");let s=this.shift&&!isNaN(this.shift)?this.shift:0;s/=e.sizeMultiplier;const a=this.width/e.sizeMultiplier,o=this.height/e.sizeMultiplier;return i.setStyle("border-right-width",a,"em"),i.setStyle("border-top-width",o,"em"),i.setStyle("margin-top",-(o-s),"em"),i.setStyle("border-color",t.color),i.width=a,i.height=o+s,i.depth=-s,i}decomposeOp(t){const e=t.mathstyle;let i,s=!1;e.size===M.DISPLAY.size&&"string"==typeof this.body&&"\\smallint"!==this.body&&(s=!0);let a=0,o=0;if(this.symbol){const n=s?"Size2-Regular":"Size1-Regular";i=N.makeSymbol(n,this.body,"op-symbol "+(s?"large-op":"small-op")),i.type="mop",a=(i.height-i.depth)/2-e.metrics.axisHeight*e.sizeMultiplier,o=i.italic,this.bind(t,i)}else Array.isArray(this.body)?(i=N.makeOp(Jt(t,this.body)),this.bind(t,i)):i=this.makeSpan(t,this.body);if(this.superscript||this.subscript){const s=this.limits||"auto";return this.alwaysHandleSupSub||"limits"===s||"auto"===s&&e.size===M.DISPLAY.size?this.attachLimits(t,i,a,o):this.attachSupsub(t,i,"mop")}return this.symbol&&i.setTop(a),i}decomposeBox(t){const e=Rt(Jt(t,this.body)),i=$t();i.setStyle("position","absolute");const s="number"==typeof this.padding?this.padding:h.fboxsep;i.setStyle("height",e.height+e.depth+2*s,"em"),0!==s?i.setStyle("width","calc(100% + 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s="";if(this.notation.box&&e.setStyle("border",this.borderStyle),this.notation.actuarial&&(e.setStyle("border-top",this.borderStyle),e.setStyle("border-right",this.borderStyle)),this.notation.madruwb&&(e.setStyle("border-bottom",this.borderStyle),e.setStyle("border-right",this.borderStyle)),this.notation.roundedbox&&(e.setStyle("border-radius",(N.height(e)+N.depth(e))/2,"em"),e.setStyle("border",this.borderStyle)),this.notation.circle&&(e.setStyle("border-radius","50%"),e.setStyle("border",this.borderStyle)),this.notation.top&&e.setStyle("border-top",this.borderStyle),this.notation.left&&e.setStyle("border-left",this.borderStyle),this.notation.right&&e.setStyle("border-right",this.borderStyle),this.notation.bottom&&e.setStyle("border-bottom",this.borderStyle),this.notation.horizontalstrike&&(s+='0?i.setWidth(this.width):i.setStyle("margin-left",this.width,"em");else{const t={qquad:"qquad",quad:"quad",enspace:"enspace",";":"thickspace",":":"mediumspace",",":"thinspace","!":"negativethinspace"}[this.body]||"quad";i=$t("","mspace "+t)}else"mathstyle"===this.type?t.setMathstyle(this.mathstyle):"box"===this.type?i=this.decomposeBox(t):"enclose"===this.type?i=this.decomposeEnclose(t):"command"===this.type||"error"===this.type?(i=this.makeSpan(t,this.body),i.classes="",this.error&&(i.classes+=" ML__error"),this.suggestion&&(i.classes+=" ML__suggestion")):"placeholder"===this.type?i=this.makeSpan(t,"⬚"):"first"===this.type&&(i=this.makeSpan(t,""));if(!i)return i;if(this.caret&&"styling"!==this.type&&"msubsup"!==this.type&&"command"!==this.type&&"placeholder"!==this.type&&"first"!==this.type&&(Array.isArray(i)?i[i.length-1].caret=this.caret:i.caret=this.caret),this.containsCaret&&(Array.isArray(i)?(i[0].classes=(i[0].classes||"")+" ML__contains-caret",i[i.length-1].classes=(i[i.length-1].classes||"")+" ML__contains-caret"):i.classes=(i.classes||"")+" 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t=.8*s.metrics.xHeight-(r-N.depth(a));t>0&&(r+=t,l-=t)}p=Wt(t,[o,l,a,-r],"individualShift"),this.symbol&&p.children[0].setLeft(-N.italic(e))}else o&&!a?(l=Math.max(l,s.metrics.sub1,N.height(o)-.8*s.metrics.xHeight),p=Wt(t,[o],"shift",l),p.children[0].setRight(d),this.isCharacterBox()&&p.children[0].setLeft(-N.italic(e))):!o&&a&&(r=Math.max(r,n,a.depth+.25*s.metrics.xHeight),p=Wt(t,[a],"shift",-r),p.children[0].setRight(d));const m=$t(p,"msubsup");return this.caret&&(m.caret=this.caret),N.makeSpanOfType(i,[e,m])}attachLimits(t,e,i,s){const a=this.superscript?$t(Jt(t.sup(),this.superscript),t.mathstyle.adjustTo(t.mathstyle.sup())):null,o=this.subscript?$t(Jt(t.sub(),this.subscript),t.mathstyle.adjustTo(t.mathstyle.sub())):null;return Xt(t,e,i,s,a,o,"mop")}bind(t,e){return"first"!==this.type&&""!==this.body&&(this.id=function(t){let e;return"boolean"==typeof t.generateID&&t.generateID?e=Date.now().toString(36).slice(-2)+Math.floor(1e5*Math.random()).toString(36):"object"==typeof t.generateID&&(e=t.generateID.overrideID?t.generateID.overrideID:t.generateID.seed.toString(36),t.generateID.seed+=1),e}(t),this.id&&(e.attributes||(e.attributes={}),e.attributes["data-atom-id"]=this.id)),e}makeSpan(t,e){const i="textord"===this.type?"mord":this.type,s=N.makeSpanOfType(i,e),a=this.getStyle();s.applyStyle(a);const o=a&&a.fontSize?a.fontSize:"size5";return o!==t.parentSize?(s.classes+=" sizing reset-"+t.parentSize,s.classes+=" "+o):t.parentSize!==t.size&&(s.classes+=" sizing reset-"+t.parentSize,s.classes+=" "+t.size),s.maxFontSize=Math.max(s.maxFontSize,t.sizeMultiplier||1),"text"===this.mode&&(s.classes+=" ML__text"),t.mathstyle.isTight()&&(s.isTight=!0),"math"!==this.mode&&(s.italic=0),s.setRight(s.italic),"number"==typeof t.opacity&&s.setStyle("opacity",t.opacity),this.bind(t,s),this.caret&&(this.superscript||this.subscript||(s.caret=this.caret,t.mathstyle.isTight()&&(s.isTight=!0))),s}}function Gt(t){const e=$t("","arraycolsep");return e.setWidth(t,"em"),e}function Zt(t,e,i,s){const a=[];for(const o of e){const e=$t(Jt(t,s));e.depth=o.depth,e.height=o.height,a.push(e),a.push(o.pos-i)}return Wt(t,a,"individualShift")}function Xt(t,e,i,s,a,o,n){if(!a&&!o)return e;e=$t(e);let r=0,l=0;a&&(r=Math.max(h.bigOpSpacing1,h.bigOpSpacing3-a.depth)),o&&(l=Math.max(h.bigOpSpacing2,h.bigOpSpacing4-o.height));let c=null;if(o&&a){const n=h.bigOpSpacing5+N.height(o)+N.depth(o)+l+N.depth(e)+i;c=Wt(t,[h.bigOpSpacing5,o,l,e,r,a,h.bigOpSpacing5],"bottom",n),c.children[0].setLeft(-s),c.children[2].setLeft(s)}else if(o&&!a){const a=N.height(e)-i;c=Wt(t,[h.bigOpSpacing5,o,l,e],"top",a),c.children[0].setLeft(-s)}else if(!o&&a){const o=N.depth(e)+i;c=Wt(t,[e,r,a,h.bigOpSpacing5],"bottom",o),c.children[1].setLeft(s)}return N.makeSpanOfType(n,c,"op-limits")}function Jt(t,e){function i(t){return"mord"===t.type&&/[0-9,.]/.test(t.latex)}function s(t){return"text"===t.mode}t instanceof _||(t=new _(t));const a=!t.generateID||!t.generateID.groupNumbers;let o=[];if(Array.isArray(e)){if(0===e.length)return o;if(1===e.length)o=e[0].decompose(t),o&&a&&e[0].isSelected&&o.forEach(t=>t.selected(!0));else{let n="none",r=e[1].type,l=[],c=null,h=!0,d=null;for(let p=0;pt.selected(!0))):(l.length>0&&(o=[...o,...l],l=[]),o=o.concat(n))}n=e[p].getFinalBaseElement().type,r=e[p+1]?e[p+1].getInitialBaseElement().type:"none"}l.length>0&&(o=[...o,...l],l=[])}}else e&&(o=e.decompose(t),o&&a&&e.isSelected&&o.forEach(t=>t.selected(!0)));if(!o||0===o.length)return null;if(t.mathstyle!==t.parentMathstyle){const e=t.mathstyle.sizeMultiplier/t.parentMathstyle.sizeMultiplier;for(const t of o)t.height*=e,t.depth*=e}if(t.size!==t.parentSize){const e=Ut[t.size]/Ut[t.parentSize];for(const t of o)t.height*=e,t.depth*=e}return o}var Yt={MathAtom:jt,decompose:Jt,makeRoot:function(t,e){const i=new jt(t=t||"math","root",e||[]);return 0!==i.body.length&&"first"===i.body[0].type||i.body.unshift(new jt("","first")),i},GREEK_REGEX:Ht};const Qt={m0:"#3f3d99",m1:"#993d71",m2:"#998b3d",m3:"#3d9956",m4:"#3d5a99",m5:"#993d90",m6:"#996d3d",m7:"#43993d",m8:"#3d7999",m9:"#843d99"},te={apricot:"#FBB982",aquamarine:"#00B5BE",bittersweet:"#C04F17",black:"#221E1F",blue:"#2D2F92",bluegreen:"#00B3B8",blueviolet:"#473992",brickred:"#B6321C",brown:"#792500",burntorange:"#F7921D",cadetblue:"#74729A",carnationpink:"#F282B4",cerulean:"#00A2E3",cornflowerblue:"#41B0E4",cyan:"#00AEEF",dandelion:"#FDBC42",darkorchid:"#A4538A",emerald:"#00A99D",forestgreen:"#009B55",fuchsia:"#8C368C",goldenrod:"#FFDF42",gray:"#949698",green:"#00A64F",greenyellow:"#DFE674",junglegreen:"#00A99A",lavender:"#F49EC4",limegreen:"#8DC73E",magenta:"#EC008C",mahogany:"#A9341F",maroon:"#AF3235",melon:"#F89E7B",midnightblue:"#006795",mulberry:"#A93C93",navyblue:"#006EB8",olivegreen:"#3C8031",orange:"#F58137",orangered:"#ED135A",orchid:"#AF72B0",peach:"#F7965A",periwinkle:"#7977B8",pinegreen:"#008B72",plum:"#92268F",processblue:"#00B0F0",purple:"#99479B",rawsienna:"#974006",red:"#ED1B23",redorange:"#F26035",redviolet:"#A1246B",rhodamine:"#EF559F",royalblue:"#0071BC",royalpurple:"#613F99",rubinered:"#ED017D",salmon:"#F69289",seagreen:"#3FBC9D",sepia:"#671800",skyblue:"#46C5DD",springgreen:"#C6DC67",tan:"#DA9D76",tealblue:"#00AEB3",thistle:"#D883B7",turquoise:"#00B4CE",violet:"#58429B",violetred:"#EF58A0",white:"#FFFFFF",wildstrawberry:"#EE2967",yellow:"#FFF200",yellowgreen:"#98CC70",yelloworange:"#FAA21A"};var ee=function(t){const e=t.toLowerCase().split("!");let i,s,a,o=255,n=255,r=255,l=-1;const c=e.length>0&&"-"===e[0].charAt(0);c&&(e[0]=e[0].slice(1));for(let h=0;h=0&&(o=(1-l)*o+l*i,n=(1-l)*n+l*s,r=(1-l)*r+l*a,l=-1),h+1=0&&(o=l*o+(1-l)*i,n=l*n+(1-l)*s,r=l*r+(1-l)*a),c&&(o=255-o,n=255-n,r=255-r),"#"+("00"+Math.round(o).toString(16)).slice(-2)+("00"+Math.round(n).toString(16)).slice(-2)+("00"+Math.round(r).toString(16)).slice(-2)},ie=function(t){let e=t.toUpperCase();for(const i in te)if(te[i]===e){e=i;break}for(const i in Qt)if(Qt[i]===e){e=i;break}return e},se=["#d35d60","#7293cb","#e1974d","#84bb5d","#9066a7","#aD6a58","#f5a4ce","#fff590","#212121","#818787","#d4d5d2","#ffffff"],ae=["#cc2428","#3769b1","#da7e30","#409852","#6b4c9a","#922426","#e7298a","#ffe907","#000000","#525055","#adafaa","#ffffff"];const oe=Yt.MathAtom;class ne{constructor(t,e,i){this.tokens=t,this.index=0,this.args=e,this.macros=i,this.mathList=[],this.style={},this.parseMode="math",this.tabularMode=!1,this.endCount=0}swapMathList(t){const e=this.mathList;return this.mathList=t||[],e}swapParseMode(t){const e=this.parseMode;return this.parseMode=t,e}end(){return this.endCount++,this.index>=this.tokens.length||this.endCount>1e3}get(){return this.endCount=0,this.index=t.length}const a=t.toUpperCase()===s.toUpperCase();return a||(this.index=e),a}scanString(){let t="",e=this.end();for(;!e;){if(this.hasLiteral("]"))e=!0;else if(this.hasToken("literal"))t+=this.get().value;else if(this.skipWhitespace())t+=" ";else if(this.hasToken("command")){const e=this.get();"space"===e.value?t+=" ":t+=e.value}else e=!0;e=e||this.end()}return t}scanColor(){return ee(this.scanString())}scanNumber(t){const e=this.parseLiteral("-");e||this.parseLiteral("+"),this.skipWhitespace(),t=!!t;let 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t=i.start;t"placeholder"===t.type));this.setExtent(0),this.path[this.path.length-1].offset=e.start-1,0!==i.length&&this.leap(1,!1)||this.setSelection(e.start+t.length-1)}else this.siblings().splice(e.start,e.end-e.start),this.setSelection(e.start-1,0);this.contentDidChange()}},ke.prototype.removeCommandString=function(){this.contentWillChange();const t=this.suppressChangeNotifications;this.suppressChangeNotifications=!0,function t(e){if(e)if(Array.isArray(e))for(let i=e.length-1;i>=0;i--)"command"===e[i].type?e.splice(i,1):t(e[i]);else if(t(e.body),t(e.superscript),t(e.subscript),t(e.underscript),t(e.overscript),t(e.numer),t(e.denom),t(e.index),e.array)for(let i=Me(e.array);i>=0;i--)t(Ae(e.array,i))}(this.root.body),this.suppressChangeNotifications=t,this.contentDidChange()},ke.prototype.extractArgBeforeInsertionPoint=function(){const t=this.siblings();if(t.length<=1)return[];const e=[];let i=this.startOffset();if("text"===t[i].mode)for(;i>=1&&"text"===t[i].mode;)e.unshift(t[i]),i--;else for(;i>=1&&/^(mord|surd|msubsup|leftright|mop)$/.test(t[i].type);)e.unshift(t[i]),i--;return e},ke.prototype.setSelection=function(t,e,i){t=t||0,e=e||0;const s=this.path[this.path.length-1].relation;i||(i=s);const a=this.parent();if(!a&&"body"!==i)return!1;const o=i.startsWith("cell");if(!o&&!a[i]||o&&!a.array)return!1;const n=i!==s;this.path[this.path.length-1].relation=i;const r=this.siblings().length;this.path[this.path.length-1].relation=s;const l=this.extent;"end"===e?e=r-t-1:"start"===e&&(e=-t),this.setExtent(e);const c=this.extent!==l;this.setExtent(l),t<0&&(t=r+t),t=Math.max(0,Math.min(t,r-1));const h=this.path[this.path.length-1].offset;return(n||h!==t||c)&&(n&&this.adjustPlaceholder(),this.selectionWillChange(),this.path[this.path.length-1].relation=i,this.path[this.path.length-1].offset=t,this.setExtent(e),this.selectionDidChange()),!0},ke.prototype.next=function(t){t=t||{};const e={body:"numer",numer:"denom",denom:"index",index:"overscript",overscript:"underscript",underscript:"subscript",subscript:"superscript"};if(this.anchorOffset()===this.siblings().length-1){this.adjustPlaceholder();let i=e[this.relation()];const s=this.parent();for(;i&&!s[i];)i=e[i];if(i)return void this.setSelection(0,0,i);if(this.parent().array){const t=Me(this.parent().array);let e=parseInt(this.relation().match(/cell([0-9]*)$/)[1])+1;for(;e=0;){if(Ae(this.parent().array,t)&&this.setSelection(-1,0,"cell"+t))return void this.selectionDidChange();t-=1}}return 1===this.path.length?(this.suppressChangeNotifications||!this.config.onMoveOutOf||this.config.onMoveOutOf.bind(this)(-1))&&(this.path[0].offset=this.root.body.length-1):(this.path.pop(),this.setSelection(this.anchorOffset()-1)),void this.selectionDidChange()}const i=this.anchor();if(!i.captureSelection){let t;if(i.array){t="";const e=Me(i.array);let s=e-1;for(;!t&&s0)for(this.collapseForward()&&t--;t>0;)this.next(),t--;else if(t<0)for(this.collapseBackward()&&t++;0!==t;)this.previous(),t++;this._announce("move",e)}},ke.prototype.up=function(t){const e=(t=t||{extend:!1}).extend||!1;this.collapseBackward();const i=this.relation();if("denom"===i)e?(this.selectionWillChange(),this.path.pop(),this.path[this.path.length-1].offset-=1,this.setExtent(1),this.selectionDidChange()):this.setSelection(this.anchorOffset(),0,"numer"),this._announce("moveUp");else if(this.parent().array){let e=Se(this.parent().array,i);e=_e(this.parent().array,e,-1),e&&Ae(e)?(this.path[this.path.length-1].relation="cell"+we(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveUp")):this.move(-1,t)}else this._announce("line")},ke.prototype.down=function(t){const e=(t=t||{extend:!1}).extend||!1;this.collapseForward();const i=this.relation();if("numer"===i)e?(this.selectionWillChange(),this.path.pop(),this.path[this.path.length-1].offset-=1,this.setExtent(1),this.selectionDidChange()):this.setSelection(this.anchorOffset(),0,"denom"),this._announce("moveDown");else if(this.parent().array){let e=Se(this.parent().array,i);e=_e(this.parent().array,e,1),e&&Ae(e)?(this.path[this.path.length-1].relation="cell"+we(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveDown")):this.move(1,t)}else this._announce("line")},ke.prototype.extend=function(t){let e=this.path[this.path.length-1].offset,i=0;const s=ve(this);i=this.extent+t;const a=e+i;if(a<0&&0!==i){if(this.path.length>1)return this.selectionWillChange(),this.path.pop(),this.setExtent(-1),this.selectionDidChange(),void this._announce("move",s);e=this.path[this.path.length-1].offset,i=this.extent}else if(a>=this.siblings().length){if(this.path.length>1)return this.selectionWillChange(),this.path.pop(),this.path[this.path.length-1].offset-=1,this.setExtent(1),this.selectionDidChange(),void this._announce("move",s);this.isCollapsed()&&(e-=1),i-=1}this.setSelection(e,i),this._announce("move",s)},ke.prototype.skip=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const s=ve(this),a=this.siblings(),o=this.focusOffset();let n=o+t;if(i&&(n=Math.min(Math.max(0,n),a.length-1)),n<0||n>=a.length)this.move(t,e);else{if(a[n]&&"text"===a[n].mode){if(n=this.wordBoundaryOffset(n,t),n<0&&!i)return void this.setSelection(0);if(n>a.length)return this.setSelection(a.length-1),void this.move(t,e)}else{const e=a[n]?a[n].type:"";if("mopen"===e&&t>0||"mclose"===e&&t<0){let i="mopen"===e?1:-1;for(n+=t>0?1:-1;n>=0&&n0&&(n-=1)}else{for(;a[n]&&"math"===a[n].mode&&a[n].type===e;)n+=t;n-=t>0?1:0}}if(i){const t=this.anchorOffset();this.setSelection(t,n-t)}else this.setSelection(n);this._announce("move",s)}},ke.prototype.jump=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const s=this.siblings();let a=this.focusOffset();t>0&&(a=Math.min(a+1,s.length-1));const o=t<0?0:s.length-1;i?this.extend(o-a):this.move(o-a)},ke.prototype.jumpToMathFieldBoundary=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=(t=t||1)<0?-1:1;const s=ve(this),a=[{relation:"body",offset:this.path[0].offset}];let o;i?t<0?a[0].offset>0&&(o=-a[0].offset):a[0].offset"placeholder"===e.type||t.length>1&&1===this.siblings().length,t);if(0===o.length){if(this.setPath(s,a),e)if(this.config.onTabOutOf)this.config.onTabOutOf(this.target,t>0?"forward":"backward");else if(document.activeElement){const e='a[href]:not([disabled]),\n button:not([disabled]),\n textarea:not([disabled]),\n input[type=text]:not([disabled]),\n select:not([disabled]),\n [contentEditable="true"],\n [tabindex]:not([disabled]):not([tabindex="-1"])',i=Array.prototype.filter.call(document.querySelectorAll(e),t=>(t.offsetWidth>0||t.offsetHeight>0)&&!t.contains(document.activeElement)||t===document.activeElement);let s=i.indexOf(document.activeElement)+t;s<0&&(s=i.length-1),s>=i.length&&(s=0),i[s].focus()}return this.suppressChangeNotifications=i,!1}return this.selectionWillChange(),this.setPath(o[0]),"placeholder"===this.anchor().type&&this.setExtent(-1),this._announce("move",s),this.selectionDidChange(),this.suppressChangeNotifications=i,!0},ke.prototype.anchorMode=function(){const t=this.isCollapsed()?this.anchor():this.sibling(1);let e;if(t){if("commandliteral"===t.type||"command"===t.type)return"command";e=t.mode}let i=1,s=this.ancestor(i);for(;!e&&s;)s&&(e=s.mode),i+=1,s=this.ancestor(i);return e},ke.prototype.anchorStyle=function(){const t=this.isCollapsed()?this.anchor():this.sibling(1);let e;if(t&&"first"!==t.type){if("commandliteral"===t.type||"command"===t.type)return{};e={color:t.color,backgroundColor:t.backgroundColor,fontFamily:t.fontFamily,fontShape:t.fontShape,fontSeries:t.fontSeries,fontSize:t.fontSize}}let i=1,s=this.ancestor(i);for(;!e&&s;)s&&(e={color:s.color,backgroundColor:s.backgroundColor,fontFamily:s.fontFamily,fontShape:s.fontShape,fontSeries:s.fontSeries,fontSize:s.fontSize}),i+=1,s=this.ancestor(i);return e},ke.prototype.simplifyParen=function(t){if(t&&this.config.removeExtraneousParentheses){for(let e=0;t[e];e++)if("leftright"===t[e].type&&"("===t[e].leftDelim&&Array.isArray(t[e].body)){let i=0,s=0,a=0;for(let o=0;t[e].body[o];o++)"genfrac"===t[e].body[o].type&&(i++,s=o),"first"!==t[e].body[o].type&&a++;0===a&&1===i&&(t[e]=t[e].body[s])}t.forEach(t=>{if("genfrac"===t.type&&(this.simplifyParen(t.numer),this.simplifyParen(t.denom),t.numer=Fe(t.numer),t.denom=Fe(t.denom)),t.superscript&&(this.simplifyParen(t.superscript),t.superscript=Fe(t.superscript)),t.subscript&&(this.simplifyParen(t.subscript),t.subscript=Fe(t.subscript)),t.underscript&&(this.simplifyParen(t.underscript),t.underscript=Fe(t.underscript)),t.overscript&&(this.simplifyParen(t.overscript),t.overscript=Fe(t.overscript)),t.index&&(this.simplifyParen(t.index),t.index=Fe(t.index)),"surd"===t.type?(this.simplifyParen(t.body),t.body=Fe(t.body)):t.body&&Array.isArray(t.body)&&this.simplifyParen(t.body),t.array)for(let e=Me(t.array);e>=0;e--)this.simplifyParen(Ae(t.array,e))})}},ke.prototype.insert=function(t,e){if((e=e||{}).smartFence&&this._insertSmartFence(t,e.style))return;const i=this.suppressChangeNotifications;e.suppressChangeNotifications&&(this.suppressChangeNotifications=!0),this.contentWillChange();const s=this.suppressChangeNotifications;this.suppressChangeNotifications=!0,e.insertionMode||(e.insertionMode="replaceSelection"),e.selectionMode||(e.selectionMode="placeholder"),e.format||(e.format="auto"),e.macros=e.macros||this.config.macros;const a=e.mode||this.anchorMode();let o;const r=[this.getSelectedAtoms()];void 0!==e.placeholder&&(r["?"]=e.placeholder),"replaceSelection"!==e.insertionMode||this.isCollapsed()?"replaceAll"===e.insertionMode?(this.root.body.splice(1),this.path=[{relation:"body",offset:0}],this.extent=0):"insertBefore"===e.insertionMode?this.collapseBackward():"insertAfter"===e.insertionMode&&this.collapseForward():this.delete_();const l=this.siblings(),c=this.startOffset();if(c+10&&l[c]&&"placeholder"===l[c].type&&this.delete_(-1),"math"===a&&"ASCIIMath"===e.format)t=De(t,{...this.config,format:"ASCIIMath"}),o=le.parseTokens(n(t),"math",null,e.macros,!1),this.simplifyParen(o);else if("text"!==a&&"auto"===e.format)if("command"===a){o=[];for(const e of t)wt.COMMAND_MODE_CHARACTERS.test(e)&&o.push(new Yt.MathAtom("command","command",e))}else""===t?o=[new Yt.MathAtom("command","command","\\")]:(t=De(t,this.config),r[0]?t=t.replace(/(^|[^\\])#@/g,"$1#0"):/(^|[^\\])#@/.test(t)?(t=t.replace(/(^|[^\\])#@/g,"$1#0"),r[0]=this.extractArgBeforeInsertionPoint(),this._deleteAtoms(-r[0].length),Array.isArray(r[0])&&0===r[0].length&&(r[0]=void 0)):t=t.replace(/(^|[^\\])#@/g,"$1#?"),o=le.parseTokens(n(t),a,r,e.macros,e.smartFence),this.simplifyParen(o));else"latex"===e.format?o=le.parseTokens(n(t),a,r,e.macros,e.smartFence):"text"!==a&&"text"!==e.format||(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=t.replace(/\\/g,"\\textbackslash ")).replace(/#/g,"\\#")).replace(/\$/g,"\\$")).replace(/%/g,"\\%")).replace(/&/g,"\\&")).replace(/_/g,"\\_")).replace(/{/g,"\\textbraceleft ")).replace(/}/g,"\\textbraceright ")).replace(/\^/g,"\\textasciicircum ")).replace(/~/g,"\\textasciitilde ")).replace(/£/g,"\\textsterling "),o=le.parseTokens(n(t),"text",r,e.macros,!1));!function t(e,i){e&&i&&(Array.isArray(e)?e.forEach(e=>t(e,i)):"object"==typeof e&&(e.color||e.backgroundColor||e.fontFamily||e.fontShape||e.fontSeries||e.fontSize||(e.applyStyle(i),t(e.body,i),t(e.numer,i),t(e.denom,i),t(e.index,i),t(e.overscript,i),t(e.underscript,i),t(e.subscript,i),t(e.superscript,i))))}(o,e.style);const h=this.parent();if(this.config.removeExtraneousParentheses&&h&&"leftright"===h.type&&"("===h.leftDelim&&function(t){return 0===t.length||1===t.length&&"first"===t[0].type}(h.body)&&o&&1===o.length&&"genfrac"===o[0].type?(this.path.pop(),this.siblings()[this.anchorOffset()]=o[0]):Array.prototype.splice.apply(this.siblings(),[this.anchorOffset()+1,0].concat(o)),this.insertFirstAtom(),this.suppressChangeNotifications=s,"placeholder"===e.selectionMode){let t=[];for(const e of o)t=t.concat(e.filter(t=>"placeholder"===t.type));0!==t.length&&this.leap(1,!1)?this._announce("move"):this.setSelection(this.anchorOffset()+o.length)}else"before"===e.selectionMode||("after"===e.selectionMode?this.setSelection(this.anchorOffset()+o.length):"item"===e.selectionMode&&this.setSelection(this.anchorOffset(),o.length));this.contentDidChange(),this.suppressChangeNotifications=i},ke.prototype._insertSmartFence=function(t,e){const i=this.parent();if("leftright"===i.type&&"|"!==i.leftDelim&&/\||\\vert|\\Vert|\\mvert|\\mid/.test(t))return this.insert("\\,\\middle"+t+"\\, ",{mode:"math",format:"latex",style:e}),!0;"{"!==t&&"\\{"!==t||(t="\\lbrace"),"}"!==t&&"\\}"!==t||(t="\\rbrace"),"["!==t&&"\\["!==t||(t="\\lbrack"),"]"!==t&&"\\]"!==t||(t="\\rbrack");const s=wt.RIGHT_DELIM[t];if(s&&("leftright"!==i.type||"|"!==i.leftDelim)){let i="";const a=this.isCollapsed()||"placeholder"===this.anchor().type;i=this.sibling(0).isFunction?"\\mleft"+t+"\\mright":"\\left"+t+"\\right",i+=a?"?":s;let o=[];return a&&(o=this.siblings().splice(this.anchorOffset()+1,this.siblings().length)),this.insert(i,{mode:"math",format:"latex",style:e}),a&&(this.sibling(0).body=o,this.move(-1)),!0}let a;if(Object.keys(wt.RIGHT_DELIM).forEach(e=>{t===wt.RIGHT_DELIM[e]&&(a=e)}),a){if(i&&"leftright"===i.type&&this.endOffset()===this.siblings().length-1)return this.contentWillChange(),i.rightDelim=t,this.move(1),this.contentDidChange(),!0;const s=this.siblings();let a;for(a=this.endOffset();a>=0&&("leftright"!==s[a].type||"?"!==s[a].rightDelim);a--);if(a>=0)return this.contentWillChange(),s[a].rightDelim=t,s[a].body=s[a].body.concat(s.slice(a+1,this.endOffset()+1)),s.splice(a+1,this.endOffset()-a),this.setSelection(a),this.contentDidChange(),!0;if(i&&"leftright"===i.type&&"?"===i.rightDelim){this.contentWillChange(),i.rightDelim=t;const e=s.slice(this.endOffset()+1);return s.splice(this.endOffset()+1),this.path.pop(),Array.prototype.splice.apply(this.siblings(),[this.endOffset()+1,0].concat(e)),this.contentDidChange(),!0}const o=this.ancestor(2);return o&&"leftright"===o.type&&"?"===o.rightDelim&&this.endOffset()===s.length-1?(this.move(1),this._insertSmartFence(t,e)):(this.insert(t,{mode:"math",format:"latex",style:e}),!0)}return!1},ke.prototype.positionInsertionPointAfterCommitedCommand=function(){const t=this.siblings(),e=this.commandOffsets();let i=e.start;for(;i=0;e--)t[e].suggestion&&t.splice(e,1)},ke.prototype.insertSuggestion=function(t,e){this.removeSuggestion();const i=[],s=t.substr(e);for(const a of s){const t=new Yt.MathAtom("command","command",a);t.suggestion=!0,i.push(t)}Array.prototype.splice.apply(this.siblings(),[this.anchorOffset()+1,0].concat(i))},ke.prototype._deleteAtoms=function(t){t>0?this.siblings().splice(this.anchorOffset()+1,t):(this.siblings().splice(this.anchorOffset()+t+1,-t),this.setSelection(this.anchorOffset()+t))},ke.prototype.delete=function(t){if(0===(t=t||0))this.delete_(0);else if(t>0)for(;t>0;)this.delete_(1),t--;else for(;t<0;)this.delete_(-1),t++},ke.prototype.delete_=function(t){this.contentWillChange(),this.selectionWillChange();const e=this.suppressChangeNotifications;if(this.suppressChangeNotifications=!0,t=(t=t||0)<0?-1:t>0?1:t,this.removeSuggestion(),this.parent().array&&t<0&&0===this.startOffset()){const t=this.parent().array;if(function(t){const e={col:0,row:0};for(;e.row0){let t=e.length;"first"===e[0].type&&(t-=1),t>0&&(i+=1)}s.row+=1}return i}(t,e.col)){!function(t,e){let i=0;for(;i"placeholder"!==t.type&&"first"!==t.type);this.parent()[t]=null,this.path.pop(),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),0].concat(e)),this.setSelection(this.anchorOffset()-1),this._announce("deleted: "+t)}else if("denom"===t){const t=this.parent().numer.filter(t=>"placeholder"!==t.type&&"first"!==t.type),e=this.parent().denom.filter(t=>"placeholder"!==t.type&&"first"!==t.type);this.path.pop(),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),1].concat(e)),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),0].concat(t)),this.setSelection(this.anchorOffset()+t.length-1),this._announce("deleted: denominator")}else if("body"===t){const t=this.siblings().filter(t=>"placeholder"!==t.type);this.path.length>1&&(t.shift(),this.path.pop(),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),1].concat(t)),this.setSelection(this.anchorOffset()-1),this._announce("deleted: root"))}else this.move(-1),this.delete(-1)}else if(t>0)if(e!==i.length-1)/^(group|array|genfrac|surd|leftright|overlap|overunder|box|mathstyle|sizing)$/.test(this.sibling(1).type)?this.move(1):(this._announce("delete",null,i.slice(e+1,e+2)),i.splice(e+1,1));else if("numer"===this.relation()){const t=this.parent().numer.filter(t=>"placeholder"!==t.type&&"first"!==t.type),e=this.parent().denom.filter(t=>"placeholder"!==t.type&&"first"!==t.type);this.path.pop(),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),1].concat(e)),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),0].concat(t)),this.setSelection(this.anchorOffset()+t.length-1),this._announce("deleted: numerator")}else this.move(1),this.delete(-1)}else{const 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"}}return s},Yt.toSpeakableText=function(t,e){const i=e?JSON.parse(JSON.stringify(e)):{textToSpeechMarkup:"",textToSpeechRules:"mathlive"};if(i.speechMode="math",window.sre&&"sre"===i.textToSpeechRules){i.generateID=!0;const e=Yt.toMathML(t,i);return e?(i.textToSpeechMarkup&&(i.textToSpeechRulesOptions=i.textToSpeechRulesOptions||{},i.textToSpeechRulesOptions.markup=i.textToSpeechMarkup,"ssml"===i.textToSpeechRulesOptions.markup&&(i.textToSpeechRulesOptions.markup="ssml_step"),i.textToSpeechRulesOptions.rate=i.speechEngineRate),i.textToSpeechRulesOptions&&window.sre.System.getInstance().setupEngine(i.textToSpeechRulesOptions),window.sre.System.getInstance().toSpeech(e)):""}let s=Yt.toSpeakableFragment(t,i);if("ssml"===i.textToSpeechMarkup){let t="";i.speechEngineRate&&(t=''),s=''+t+""+s+"
"+(t?"":"")+""}else s="mac"===i.textToSpeechMarkup&&"mac"===function(t){let e="other";return navigator&&navigator.platform&&navigator.userAgent&&(/^(mac)/i.test(navigator.platform)?e="mac":/^(win)/i.test(navigator.platform)?e="win":/(android)/i.test(navigator.userAgent)?e="android":/(iphone)/i.test(navigator.userAgent)||/(ipod)/i.test(navigator.userAgent)||/(ipad)/i.test(navigator.userAgent)?e="ios":/\bCrOS\b/i.test(navigator.userAgent)&&(e="chromeos")),e===t?t:"!"+t}("mac")?s.replace(//g,"").replace(//g,"[[emph+]]").replace(/<\/emphasis>/g,"").replace(//g,"[[slc $1]]").replace(/]*>/g,"").replace(/<\/say-as>/g,""):s.replace(/<[^>]*>/g,"").replace(/\s{2,}/g," ");return s};class xs{constructor(t,e){this.$setConfig(e||{}),this.element=t,t.mathfield=this,this.originalContent=t.innerHTML;let i=this.element.textContent;i&&(i=i.trim());let s="";this.config.substituteTextArea?"string"==typeof this.config.substituteTextArea?s+=this.config.substituteTextArea:s+="":/android|ipad|ipod|iphone/i.test(navigator.userAgent)?s+="\n \n \n ":s+='',s+='',this.config.virtualKeyboardMode||(this.config.virtualKeyboardMode=window.matchMedia&&window.matchMedia("(any-pointer: coarse)").matches?"onfocus":"off"),"manual"===this.config.virtualKeyboardMode?(s+=`"):s+="",s+="",s+='\n \n \n \n
\n ',this.element.innerHTML=s;let a=0;"function"==typeof this.config.substituteTextArea?this.textarea=this.config.substituteTextArea():this.textarea=this.element.children[a++].firstElementChild,this.field=this.element.children[a].children[0],this.field.addEventListener("wheel",t=>{t.preventDefault(),t.stopPropagation();let e=void 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mousedown",this),us(window,"resize",this);const o={...e};o.onSelectionDidChange=xs.prototype._onSelectionDidChange.bind(this),o.onContentDidChange=xs.prototype._onContentDidChange.bind(this),o.onAnnounce=this.config.onAnnounce,o.macros=this.config.macros,o.removeExtraneousParentheses=this.config.removeExtraneousParentheses,this.mathlist=new Pe.EditableMathlist(o,this),this.undoManager=new class{constructor(t){this.mathlist=t,this.maximumDepth=1e3,this.record=!1,this.canCoalesce=!1,this.reset()}reset(){this.stack=[],this.index=-1}startRecording(){this.record=!0}canUndo(){return this.index>0}canRedo(){return this.index!==this.stack.length-1}undo(t){this.canUndo()&&(t&&"function"==typeof t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"undo"),this.restore(this.stack[this.index-1],t),this.index-=1,t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"undo"),this.canCoalesce=!1)}redo(t){this.canRedo()&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"redo"),this.index+=1,this.restore(this.stack[this.index],t),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"redo"),this.canCoalesce=!1)}pop(){this.canUndo()&&(this.index-=1,this.stack.pop())}snapshot(t){this.record&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"snapshot"),this.stack.splice(this.index+1,this.stack.length-this.index-1),this.stack.push({latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}),this.index++,this.stack.length>this.maximumDepth&&this.stack.shift(),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"snapshot"),this.canCoalesce=!1)}snapshotAndCoalesce(t){this.canCoalesce&&this.pop(),this.snapshot(t),this.canCoalesce=!0}save(){return{latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}}restore(t,e){const i=this.mathlist.suppressChangeNotifications;void 0!==e.suppressChangeNotifications&&(this.mathlist.suppressChangeNotifications=e.suppressChangeNotifications),this.mathlist.insert(t?t.latex:"",{mode:"math",insertionMode:"replaceAll",selectionMode:"after",format:"latex",...e}),this.mathlist.setPath(t?t.selection:[{relation:"body",offset:0}]),this.mathlist.suppressChangeNotifications=i}}(this.mathlist),i.length>0&&this.$latex(i),this.undoManager.startRecording(),this.undoManager.snapshot(this.config)}handleEvent(t){switch(t.type){case"focus":this._onFocus(t);break;case"blur":this._onBlur(t);break;case"touchstart":case"mousedown":case"pointerdown":this._onPointerDown(t);break;case"resize":this._resizeTimer&&window.cancelAnimationFrame(this._resizeTimer),this._resizeTimer=window.requestAnimationFrame(()=>bs(this)&&this._onResize());break;case"cut":this._onCut(t);break;case"copy":this._onCopy(t);break;case"paste":this._onPaste(t)}}$revertToOriginalContent(){this.element.innerHTML=this.originalContent,this.element.mathfield=null,delete this.accessibleNode,delete this.ariaLiveText,delete this.field,fs(this.textarea,"cut",this),fs(this.textarea,"copy",this),fs(this.textarea,"paste",this),this.textarea.remove(),delete this.textarea,this.virtualKeyboardToggleDOMNode.remove(),delete this.virtualKeyboardToggleDOMNode,ys(this.popover),ys(this.keystrokeCaption),ys(this.virtualKeyboard),ys(document.getElementById("mathlive-alternate-keys-panel")),fs(this.element,"pointerdown",this),fs(this.element,"touchstart:active mousedown",this),fs(this.element,"focus",this),fs(this.element,"blur",this),fs(window,"resize",this),delete this.element}_resetKeystrokeBuffer(){this.keystrokeBuffer="",this.keystrokeBufferStates=[],clearTimeout(this.keystrokeBufferResetTimer)}_getCaretPosition(){const t=function t(e){if(e.classList.contains("ML__caret")||e.classList.contains("ML__text-caret")||e.classList.contains("ML__command-caret"))return e;let i;return Array.from(e.children).forEach((function(e){i=i||t(e)})),i}(this.field);if(t){const e=t.getBoundingClientRect();return{x:e.right,y:e.bottom,height:e.height}}return null}_getSelectionBounds(){const t=this.field.querySelectorAll(".ML__selected");if(t&&t.length>0){const e={top:1/0,bottom:-1/0,left:1/0,right:-1/0};t.forEach(t=>{const i=t.getBoundingClientRect();i.lefte.right&&(e.right=i.right),i.bottom>e.bottom&&(e.bottom=i.bottom),i.top=t.left&&i<=t.right}return o&&e.children&&Array.from(e.children).forEach((function(e){const o=t(e,i,s);o.element&&o.distance<=a.distance&&(a=o)})),a}(this.field,t,e).element,o=a?a.getAttribute("data-atom-id"):null;if(o){const e=this.mathlist.filter((function(t,e){return e.captureSelection?e.filter(t=>t.id===o).length>0:e.id===o}));if(e&&e.length>0)if(s=de.pathFromString(e[0]).path,0===i.bias){const e=a.getBoundingClientRect();tt.parentNode.removeChild(t)),t.preventDefault(),t.stopPropagation()}let r=!1,l=!1;const c=setInterval(()=>{r?e.field.scroll({top:0,left:e.field.scrollLeft-16}):l&&e.field.scroll({top:0,left:e.field.scrollLeft+16})},32);function h(t){const s=t.touches?t.touches[0].clientX:t.clientX,o=t.touches?t.touches[0].clientY:t.clientY,n="touch"===t.pointerType?20:5;if(Date.now()c.right,r=s=u.left&&d<=u.right&&p>=u.top&&p<=u.bottom){this.$hasFocus()||(o=!0,this.textarea.focus&&this.textarea.focus()),this._resetKeystrokeBuffer(),this.smartModeSuppressed=!1;const r=this.field.querySelector(".ML__mathlive").getBoundingClientRect();if(i=d>r.right?[{relation:"body",offset:this.mathlist.root.body.length-1}]:this._pathFromPoint(d,p,{bias:0}),i){let r=document.createElement("div");r.className="ML__scroller",this.element.appendChild(r),r.style.left=u.left-200+"px",r=document.createElement("div"),r.className="ML__scroller",this.element.appendChild(r),r.style.left=u.right+"px",t.shiftKey?(this.mathlist.setRange(this.mathlist.path,i),i=de.clone(this.mathlist.path),i[i.length-1].offset-=1):this.mathlist.setPath(i,0),o=!0,this.style={},3===t.detail||vs>2?(n(t),3!==t.detail&&3!==vs||this.mathlist.selectAll_()):s||(s=!0,window.PointerEvent?(us(e.field,"pointermove",h),us(e.field,"pointerend pointercancel pointerup",n),e.field.setPointerCapture(t.pointerId)):(us(window,"blur",n),t.touches?(us(t.target,"touchmove",h),us(t.target,"touchend",n)):(us(window,"mousemove",h),us(window,"mouseup",n))),2!==t.detail&&2!==vs||(a=!0,this.mathlist.selectGroup_()))}}else ks=null;o&&this._requestUpdate(),t.preventDefault()}_onSelectionDidChange(){this.mathlist.commitCommandStringBeforeInsertionPoint();let t="";this.mathlist.forEachSelected(e=>{t+=e.toLatex()}),t?(this.textarea.value=t,this.$hasFocus()&&this.textarea.select&&this.textarea.select()):(this.textarea.value="",this.textarea.setAttribute("aria-label",""));{const t=this.mode;this.mode=this.mathlist.anchorMode()||this.config.defaultMode,this.mode!==t&&"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode),"command"===t&&"command"!==this.mode&&(Ze.hidePopover(this),this.mathlist.removeCommandString())}Ze.updatePopoverPosition(this,{deferred:!0}),"function"==typeof this.config.onSelectionDidChange&&this.config.onSelectionDidChange(this)}_onContentDidChange(){this.undoManager.canRedo()?this.element.classList.add("can-redo"):this.element.classList.remove("can-redo"),this.undoManager.canUndo()?this.element.classList.add("can-undo"):this.element.classList.remove("can-undo"),"function"==typeof this.config.onContentDidChange&&this.config.onContentDidChange(this)}_nextAtomSpeechText(t){function e(t,e){return"body"===e.relation?{enclose:"cross out",leftright:"fence",surd:"square root",root:"math field"}[t.type]:{numer:"numerator",denom:"denominator",index:"index",body:"parent",subscript:"subscript",superscript:"superscript"}[e.relation]}const i=t?t.path:[],s=this.mathlist.path,a=s[s.length-1];let o="";for(;i.length>s.length;)o+="out of "+e(t.parent(),i[i.length-1])+"; ",i.pop();if(!this.mathlist.isCollapsed())return ws(this,"",this.mathlist.getSelectedAtoms());const n=e(this.mathlist.parent(),a);0===a.offset&&(o+=(n?"start of "+n:"unknown")+": ");const r=this.mathlist.sibling(Math.max(1,this.mathlist.extent));return r?o+=ws(this,"",r):0!==a.offset&&(o+=n?"end of "+n:"unknown"),o}_announce(t,e,i){"function"==typeof this.config.onAnnounce&&this.config.onAnnounce(this,t,e,i)}_onFocus(){this.config.readOnly||this.blurred&&(this.blurred=!1,this.textarea.focus&&this.textarea.focus(),"onfocus"===this.config.virtualKeyboardMode&&this.showVirtualKeyboard_(),Ze.updatePopoverPosition(this),this.config.onFocus&&this.config.onFocus(this),this._requestUpdate())}_onBlur(){this.blurred||(this.blurred=!0,this.ariaLiveText.textContent="","onfocus"===this.config.virtualKeyboardMode&&this.hideVirtualKeyboard_(),this.complete_({discard:!0}),this._requestUpdate(),this.config.onBlur&&this.config.onBlur(this))}_onResize(){this.element.classList.remove("ML__isNarrowWidth","ML__isWideWidth","ML__isExtendedWidth"),window.innerWidth>=1024?this.element.classList.add("ML__isExtendedWidth"):window.innerWidth>=768?this.element.classList.add("ML__isWideWidth"):this.element.classList.add("ML__isNarrowWidth"),Ze.updatePopoverPosition(this)}toggleKeystrokeCaption_(){this.keystrokeCaptionVisible=!this.keystrokeCaptionVisible,this.keystrokeCaption.innerHTML="",this.keystrokeCaptionVisible||(this.keystrokeCaption.style.visibility="hidden")}_showKeystroke(t){const e=this.keystrokeCaption;if(e&&this.keystrokeCaptionVisible){const i=this.element.getBoundingClientRect();e.style.left=i.left+"px",e.style.top=i.top-64+"px",e.innerHTML=""+(xe.stringify(t)||t)+""+e.innerHTML,e.style.visibility="visible",setTimeout((function(){e.childNodes.length>0&&e.removeChild(e.childNodes[e.childNodes.length-1]),0===e.childNodes.length&&(e.style.visibility="hidden")}),3e3)}}$perform(t){if(!t)return!1;let e,i=!1,s=[],a=!1;if(Array.isArray(t)?(e=t[0],s=t.slice(1)):e=t,e=e.replace(/-\w/g,t=>t[1].toUpperCase()),e+="_","function"==typeof this.mathlist[e]){if(/^(delete|transpose|add)/.test(e)&&this._resetKeystrokeBuffer(),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&(this.undoManager.pop(),this.undoManager.snapshot(this.config)),this.mathlist[e](...s),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&this.undoManager.snapshot(this.config),/^(delete)/.test(e)&&"command"===this.mode){const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=wt.suggest(t);0===e.length?Ze.hidePopover(this):Ze.showPopoverWithLatex(this,e[0].match,e.length>1)}a=!0,i=!0}else"function"==typeof this[e]&&(a=this[e](...s),i=!0);return this.mathlist.isCollapsed()&&!/^(transpose|paste|complete|((moveToNextChar|moveToPreviousChar|extend).*))_$/.test(e)||(this._resetKeystrokeBuffer(),this.style={}),a&&this._requestUpdate(),i}performWithFeedback_(t){return this.$focus(),this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),"moveToNextPlaceholder"===(t=t.replace(/-\w/g,t=>t[1].toUpperCase()))||"moveToPreviousPlaceholder"===t||"complete"===t?this.returnKeypressSound?(this.returnKeypressSound.load(),this.returnKeypressSound.play().catch(t=>{})):this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):"deletePreviousChar"!==t&&"deleteNextChar"!==t&&"deletePreviousWord"!==t&&"deleteNextWord"!==t&&"deleteToGroupStart"!==t&&"deleteToGroupEnd"!==t&&"deleteToMathFieldStart"!==t&&"deleteToMathFieldEnd"!==t||!this.deleteKeypressSound?this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):(this.deleteKeypressSound.load(),this.deleteKeypressSound.play().catch(t=>{})),this.$perform(t)}convertLastAtomsToText_(t,e){"function"==typeof t&&(e=t,t=1/0),void 0===t&&(t=1/0);let i=0,s=!1;for(this.mathlist.contentWillChange();!s;){const a=this.mathlist.sibling(i);s=0===t||!a||"math"!==a.mode||!(/mord|textord|mpunct/.test(a.type)||"mop"===a.type&&/[a-zA-Z]+/.test(a.body))||a.superscript||a.subscript||e&&!e(a),s||(a.applyStyle({mode:"text"}),a.latex=a.body),i-=1,t-=1}this.mathlist.contentDidChange()}convertLastAtomsToMath_(t,e){"function"==typeof t&&(e=t,t=1/0),void 0===t&&(t=1/0),this.mathlist.contentWillChange();let i=0,s=!1;for(;!s;){const a=this.mathlist.sibling(i);s=0===t||!a||"text"!==a.mode||" "===a.body||e&&!e(a),s||a.applyStyle({mode:"math",type:"mord"}),i-=1,t-=1}this.removeIsolatedSpace_(),this.mathlist.contentDidChange()}removeIsolatedSpace_(){let t=0;for(;this.mathlist.sibling(t)&&"math"===this.mathlist.sibling(t).mode;)t-=1;if(this.mathlist.sibling(t)&&"text"===this.mathlist.sibling(t).mode&&" "===this.mathlist.sibling(t).body&&(!this.mathlist.sibling(t-1)||"math"===this.mathlist.sibling(t-1).mode)){this.mathlist.contentWillChange(),this.mathlist.siblings().splice(t-1,1),this.mathlist.contentDidChange();const e=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0,this.mathlist.setSelection(this.mathlist.anchorOffset()-1),this.mathlist.suppressChangeNotifications=e}}getTextBeforeAnchor_(){let t="",e=0,i=!1;for(;!i;){const s=this.mathlist.sibling(e);i=!(s&&("text"===s.mode&&!s.type||"math"===s.mode&&/mord|textord|mpunct/.test(s.type))),i||(t=s.body+t),e-=1}return t}smartMode_(t,e){if(this.smartModeSuppressed)return!1;if(this.mathlist.endOffset()1)return!1;if(!this.mathlist.isCollapsed())return!("text"!==this.mode||!/[/_^]/.test(i));const s=this.getTextBeforeAnchor_()+i;if("text"===this.mode){if("Esc"===t||/[/\\]/.test(i))return!0;if(/[\^_]/.test(i))return/(^|\s)[a-zA-Z][^_]$/.test(s)&&this.convertLastAtomsToMath_(1),!0;const e={")":"(","}":"{","]":"["}[i];if(e&&this.mathlist.parent()&&"leftright"===this.mathlist.parent().type&&this.mathlist.parent().leftDelim===e)return!0;if(/(^|[^a-zA-Z])(a|I)[ ]$/.test(s))return!1;if(/[$€£₤₺¥¤฿¢₡₧₨₹₩₱]/u.test(i))return!0;if(/(^|[^a-zA-Z'’])[a-zA-Z][ ]$/.test(s))return this.convertLastAtomsToMath_(1),!1;if(/[^0-9]\.[^0-9\s]$/.test(s)){this.convertLastAtomsToMath_(1);const t=this.mathlist.sibling(0);return t.body="⋅",t.autoFontFamily="cmr",t.latex="\\cdot",!0}if(/(^|\s)[a-zA-Z][^a-zA-Z]$/.test(s))return this.convertLastAtomsToMath_(1),!0;if(/\.[0-9]$/.test(s))return this.convertLastAtomsToMath_(1),!0;if(/[(][0-9+\-.]$/.test(s))return this.convertLastAtomsToMath_(1),!0;if(/[(][a-z][,;]$/.test(s))return this.convertLastAtomsToMath_(2),!0;if(/[0-9+\-=><*|]$/.test(i))return this.removeIsolatedSpace_(),!0}else{if("Spacebar"===t)return this.convertLastAtomsToText_(t=>/[a-z][:,;.]$/.test(t.body)),!0;if(/[a-zA-Z]{3,}$/.test(s)&&!/(dxd|abc|xyz|uvw)$/.test(s))return this.convertLastAtomsToText_(t=>/[a-zA-Z:,;.]/.test(t.body)),!0;if(/(^|\W)(if|If)$/i.test(s))return this.convertLastAtomsToText_(1),!0;if(/(\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5){3,}$/u.test(s)&&!/(αβγ)$/.test(s))return this.convertLastAtomsToText_(t=>/(:|,|;|.|\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5)/u.test(t.body)),!0;if(/\?|\./.test(i))return!0}return!1}_onKeystroke(t,e){if(this._showKeystroke(t),clearTimeout(this.keystrokeBufferResetTimer),this.config.onKeystroke&&!this.config.onKeystroke(this,t,e))return e&&e.preventDefault&&(e.preventDefault(),e.stopPropagation()),!1;let i,s,a,o=!1;if("command"!==this.mode&&(!e||!e.ctrlKey&&!e.metaKey)){const t=Ne.eventToChar(e);if("Backspace"!==t)if(!t||t.length>1)this._resetKeystrokeBuffer();else{const e=this.keystrokeBuffer+t;let a=0;for(;!i&&a{this._resetKeystrokeBuffer()},this.config.inlineShortcutTimeout))}}if(this.config.smartMode){const s=this.mode;i?this.mode="math":this.smartMode_(t,e)&&(this.mode={math:"text",text:"math"}[this.mode],a=""),this.mode!==s&&"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode)}if(i||a||(a=xe.selectorForKeystroke(this.mode,t)),!i&&!a)return!0;if(this.config.readOnly&&"insert"===a[0])return!0;this.mathlist.decorateCommandStringAroundInsertionPoint(!1);const r=this.mathlist.parent();if("moveAfterParent"===a&&r&&"leftright"===r.type&&this.mathlist.endOffset()===this.mathlist.siblings().length-1&&this.config.smartFence&&this.mathlist._insertSmartFence(".")&&(a="",this._requestUpdate()),"math"===this.mode&&"Spacebar"===t&&!i){const t=this.mathlist.sibling(1),e=this.mathlist.sibling(-1);(t&&"text"===t.mode||e&&"text"===e.mode)&&this.mathlist.insert(" ",{mode:"text"})}if((a&&!this.$perform(a)||i)&&i){if(!/^(\\{|\\}|\\[|\\]|\\@|\\#|\\$|\\%|\\^|\\_|\\backslash)$/.test(i)){const t={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(Ne.eventToChar(e),{suppressChangeNotifications:!0,mode:this.mode,style:t});const i=this.mode;this.undoManager.snapshotAndCoalesce(this.config),this.undoManager.restore(this.keystrokeBufferStates[s],{...this.config,suppressChangeNotifications:!0}),this.mode=i}this.mathlist.contentWillChange();const t=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0;const a={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(i,{format:"latex",mode:this.mode,style:a,smartFence:!0}),this.removeIsolatedSpace_(),i.endsWith(" ")&&(this.mode="text",this.mathlist.insert(" ",{mode:"text",style:a})),this.mathlist.suppressChangeNotifications=t,this.mathlist.contentDidChange(),this.undoManager.snapshot(this.config),this._requestUpdate(),this._announce("replacement"),o&&this._resetKeystrokeBuffer()}return this.scrollIntoView(),e&&e.preventDefault&&(e.preventDefault(),e.stopPropagation()),!1}_onTypedText(t,e){if(this.config.readOnly)return void this._announce("plonk");if((e=e||{}).focus&&this.$focus(),e.feedback&&(this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{}))),e.commandMode&&"command"!==this.mode&&this.switchMode_("command"),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),e.simulateKeystroke){const e=t.charAt(0),i=Ne.charToEvent(e);if(!this.$keystroke(Ne.keyboardEventToString(i),i))return}let i="",a=!1;if(this.pasteInProgress)this.pasteInProgress=!1,this.mathlist.insert(t,{smartFence:this.config.smartFence,mode:"math"});else{const e={...this.mathlist.anchorStyle(),...this.style},o=s(t);for(const t of o)if("command"===this.mode){this.mathlist.removeSuggestion(),this.suggestionIndex=0;const e=this.mathlist.extractCommandStringAroundInsertionPoint(),s=wt.suggest(e+t);a=s.length>1,0===s.length?(this.mathlist.insert(t,{mode:"command"}),/^\\[a-zA-Z\\*]+$/.test(e+t)&&this.mathlist.decorateCommandStringAroundInsertionPoint(!0),Ze.hidePopover(this)):(this.mathlist.insert(t,{mode:"command"}),s[0].match!==e+t&&this.mathlist.insertSuggestion(s[0].match,-s[0].match.length+e.length+1),i=s[0].match)}else if("math"===this.mode){const i={"^":"moveToSuperscript",_:"moveToSubscript"," ":"moveAfterParent"}[t];if(i){if("moveToSuperscript"===i){if(this._superscriptDepth()>=this.config.scriptDepth[1])return void this._announce("plonk")}else if("moveToSubscript"===i&&this._subscriptDepth()>=this.config.scriptDepth[0])return void this._announce("plonk");this.$perform(i)}else this.config.smartSuperscript&&"superscript"===this.mathlist.relation()&&/[0-9]/.test(t)&&0===this.mathlist.siblings().filter(t=>"first"!==t.type).length?(this.mathlist.insert(t,{mode:"math",style:e}),this.mathlist.moveAfterParent_()):this.mathlist.insert(t,{mode:"math",style:e,smartFence:this.config.smartFence})}else"text"===this.mode&&this.mathlist.insert(t,{mode:"text",style:e})}"command"!==this.mode&&this.undoManager.snapshotAndCoalesce(this.config),this._requestUpdate(),this.scrollIntoView(),Ze.showPopoverWithLatex(this,i,a)}_hash(){let t=0;const e=this.mathlist.root.toLatex(!1);for(let i=0;ibs(this)&&this._render()))}_render(t){t=t||{},this.dirty=!1,window.mathlive||(window.mathlive={}),this.mathlist.anchor()||(this.mathlist.path=[{relation:"body",offset:0}]),this.mathlist.forEach(t=>{t.caret="",t.isSelected=!1,t.containsCaret=!1});const e=this.$hasFocus();if(this.mathlist.isCollapsed()?this.mathlist.anchor().caret=e&&!this.config.readOnly?this.mode:"":this.mathlist.forEachSelected(t=>{t.isSelected=!0}),e&&!this.config.readOnly){let t=this.mathlist.ancestor(1),e=1,i=!1;for(;t&&!i;)"surd"!==t.type&&"leftright"!==t.type||(t.containsCaret=!0,i=!0),e+=1,t=this.mathlist.ancestor(e)}const i=Yt.decompose({mathstyle:"displaystyle",generateID:{seed:this._hash(),groupNumbers:t.forHighlighting},macros:this.config.macros},this.mathlist.root),s=N.makeSpan(i,"ML__base");s.attributes={translate:"no","aria-hidden":"true"};const a=N.makeSpan("","ML__strut");a.setStyle("height",s.height,"em");const o=[a];if(0!==s.depth){const t=N.makeSpan("","ML__strut--bottom");t.setStyle("height",s.height+s.depth,"em"),t.setStyle("vertical-align",-s.depth,"em"),o.push(t)}o.push(s);const n=N.makeSpan(o,"ML__mathlive");this.field.innerHTML=n.toMarkup(0,this.config.horizontalSpacingScale),this.field.classList.toggle("ML__focused",e&&!this.config.readOnly),this.accessibleNode.innerHTML="";const r=this._getSelectionBounds();if(r){const t=document.createElement("div");t.classList.add("ML__selection"),t.style.position="absolute",t.style.left=r.left+"px",t.style.top=r.top+"px",t.style.width=Math.ceil(r.right-r.left)+"px",t.style.height=Math.ceil(r.bottom-r.top-1)+"px",this.field.insertBefore(t,this.field.childNodes[0])}}_onPaste(){return this.pasteInProgress=!0,!0}_onCut(){return setTimeout(function(){this.$clearSelection(),this._requestUpdate()}.bind(this),0),!0}_onCopy(t){this.mathlist.isCollapsed()?(t.clipboardData.setData("text/plain","$$"+this.$text("latex-expanded")+"$$"),t.clipboardData.setData("application/json",this.$text("json")),t.clipboardData.setData("application/xml",this.$text("mathML"))):(t.clipboardData.setData("text/plain","$$"+this.$selectedText("latex-expanded")+"$$"),t.clipboardData.setData("application/json",this.$selectedText("json")),t.clipboardData.setData("application/xml",this.$selectedText("mathML"))),t.preventDefault()}formatMathlist(t,e){let i="";if("latex"===(e=e||"latex")||"latex-expanded"===e)i=t.toLatex("latex-expanded"===e);else if("mathML"===e)i=t.toMathML(this.config);else if("spoken"===e)i=Yt.toSpeakableText(t,this.config);else if("spoken-text"===e){const e=this.config.textToSpeechMarkup;this.config.textToSpeechMarkup="",i=Yt.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=e}else if("spoken-ssml"===e||"spoken-ssml-withHighlighting"===e){const s=this.config.textToSpeechMarkup,a=this.config.generateID;this.config.textToSpeechMarkup="ssml","spoken-ssml-withHighlighting"===e&&(this.config.generateID=!0),i=Yt.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=s,this.config.generateID=a}else if("json"===e){const e=Yt.toAST(t,this.config);i=JSON.stringify(e)}else"ASCIIMath"===e&&(i=function t(e,i){if(!e)return"";if(Array.isArray(e)){let i="";if(0===e.length)return"";if("first"===e[0].type&&e.shift(),"text"===e[0].mode){let s=0;for(i='"';e[s]&&"text"===e[s].mode;)i+=e[s].body,s++;i+='"'+t(e.slice(s))}else{let s=0;for(;e[s]&&"math"===e[s].mode;)i+=t(e[s]),s++;i+=t(e.slice(s))}return i.trim()}if("text"===e.mode)return'"'+e.body+'"';let s="";const a=e.latex?e.latex.trim():null;let o;switch(e.type){case"group":case"root":s=t(e.body);break;case"array":break;case"genfrac":(e.leftDelim||e.rightDelim)&&(s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:"),e.hasBarLine?(s+="(",s+=t(e.numer),s+=")/(",s+=t(e.denom),s+=")"):(s+="("+t(e.numer)+"),",s+="("+t(e.denom)+")"),(e.leftDelim||e.rightDelim)&&(s+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:");break;case"surd":e.index?s+="root("+t(e.index)+")("+t(e.body)+")":s+="sqrt("+t(e.body)+")";break;case"leftright":s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:",s+=t(e.body),s+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:";break;case"sizeddelim":case"delim":case"accent":break;case"line":case"overlap":case"overunder":break;case"mord":s=li[a]||a||("string"==typeof e.body?e.body:""),"\\"===s[0]&&(s+=""),o=a?a.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/):null,o?s=String.fromCharCode(parseInt("0x"+o[1])):s.length>0&&"\\"===s.charAt(0)&&(s="string"==typeof e.body?e.body.charAt(0):e.latex);break;case"mbin":case"mrel":case"textord":case"minner":s=a&&li[a]?li[a]:a&&ci[a]?ci[a]:e.body;break;case"mopen":case"mclose":s+=e.body;break;case"mpunct":s=ci[a]||a;break;case"mop":""!==e.body&&(s="",s+="\\operatorname"===a?t(e.body):e.body||a,s+=" ");break;case"mathstyle":case"box":case"spacing":case"enclose":break;case"space":s=" "}if(e.subscript){s+="_";const i=t(e.subscript);i.length>1&&!/^(-)?\d+(\.\d*)?$/.test(i)?s+="("+i+")":s+=i}if(e.superscript){s+="^";const i=t(e.superscript);i.length>1&&!/^(-)?\d+(\.\d*)?$/.test(i)?s+="("+i+")":s+=i}return s}(t,this.config));return i}$text(t){return this.formatMathlist(this.mathlist.root,t)}$selectedText(t){const e=this.mathlist.getSelectedAtoms();if(!e)return"";const i=Yt.makeRoot("math",e);return this.formatMathlist(i,t)}$selectionIsCollapsed(){return this.mathlist.isCollapsed()}$selectionDepth(){return this.mathlist.path.length}_superscriptDepth(){let t=0,e=0,i=this.mathlist.ancestor(e),s=!1;for(;i;)(i.superscript||i.subscript)&&(t+=1),i.superscript?s=!0:i.subscript&&(s=!1),e+=1,i=this.mathlist.ancestor(e);return s?t:0}_subscriptDepth(){let t=0,e=0,i=this.mathlist.ancestor(e),s=!1;for(;i;)(i.superscript||i.subscript)&&(t+=1),i.superscript?s=!1:i.subscript&&(s=!0),e+=1,i=this.mathlist.ancestor(e);return s?t:0}$selectionAtStart(){return 0===this.mathlist.startOffset()}$selectionAtEnd(){return this.mathlist.endOffset()>=this.mathlist.siblings().length-1}groupIsSelected(){return 0===this.mathlist.startOffset()&&this.mathlist.endOffset()>=this.mathlist.siblings().length-1}$latex(t,e){return t?(t!==this.mathlist.root.toLatex()&&(e=e||{},this.mathlist.insert(t,Object.assign({},this.config,{insertionMode:"replaceAll",selectionMode:"after",format:"latex",mode:"math",suppressChangeNotifications:e.suppressChangeNotifications})),this.undoManager.snapshot(this.config),this._requestUpdate()),t):this.mathlist.root.toLatex()}$el(){return this.element}undo(){return this.complete_(),this.undoManager.undo(this.config),!0}redo(){return this.complete_(),this.undoManager.redo(this.config),!0}scrollIntoView(){this.dirty&&this._render();let t=this._getCaretPosition();const e=this.field.getBoundingClientRect();if(!t){const i=this._getSelectionBounds();i&&(t={x:i.right+e.left-this.field.scrollLeft,y:i.top+e.top-this.field.scrollTop})}if(t){const i=t.x-window.scrollX;ie.right&&this.field.scroll({top:0,left:i-e.right+this.field.scrollLeft+20,behavior:"smooth"})}}scrollToStart(){this.field.scroll(0,0)}scrollToEnd(){const t=this.field.getBoundingClientRect();this.field.scroll(t.left-window.scrollX,0)}enterCommandMode_(){this.switchMode_("command")}copyToClipboard_(){return this.$focus(),this.mathlist.isCollapsed()&&this.$select(),document.execCommand("copy"),!1}cutToClipboard_(){return this.$focus(),document.execCommand("cut"),!0}pasteFromClipboard_(){return this.$focus(),document.execCommand("paste"),!0}$insert(t,e){if("string"==typeof t&&t.length>0){if((e=e||{}).focus&&this.$focus(),e.feedback&&(this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play())),"\\\\"===t)this.mathlist.addRowAfter_();else if("&"===t)this.mathlist.addColumnAfter_();else{const i=this.style;this.mathlist.insert(t,{mode:this.mode,style:this.mathlist.anchorStyle(),...e}),e.resetStyle&&(this.style=i)}return this.undoManager.snapshot(this.config),this._requestUpdate(),!0}return!1}switchMode_(t,e,i){this._resetKeystrokeBuffer(),this.smartModeSuppressed=/text|math/.test(this.mode)&&/text|math/.test(t),e&&this.$insert(e,{format:"latex",mode:{math:"text",text:"math"}[t]}),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),"command"===t?(this.mathlist.removeSuggestion(),Ze.hidePopover(this),this.suggestionIndex=0,this.virtualKeyboardVisible&&this.switchKeyboardLayer_("lower-command"),this.mathlist.insert("",{mode:"math"})):this.mode=t,i&&this.$insert(i,{format:"latex",mode:t}),"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode),this._requestUpdate()}complete_(t){if(t=t||{},Ze.hidePopover(this),t.discard)return this.mathlist.spliceCommandStringAroundInsertionPoint(null),this.switchMode_("math"),!0;const e=this.mathlist.extractCommandStringAroundInsertionPoint(!t.acceptSuggestion);if(e){if("\\("===e||"\\)"===e)this.mathlist.spliceCommandStringAroundInsertionPoint([]),this.mathlist.insert(e.slice(1),{mode:this.mode});else{const t="math";if(wt.commandAllowed(t,e)){const i=le.parseTokens(n(e),t,null,this.config.macros);this.mathlist.spliceCommandStringAroundInsertionPoint(i)}else{const i=le.parseTokens(n(e),t,null,this.config.macros);i?this.mathlist.spliceCommandStringAroundInsertionPoint(i):this.mathlist.decorateCommandStringAroundInsertionPoint(!0)}}return this.undoManager.snapshot(this.config),this._announce("replacement"),!0}return!1}_updateSuggestion(){this.mathlist.positionInsertionPointAfterCommitedCommand(),this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=wt.suggest(t);if(0===e.length)Ze.hidePopover(this),this.mathlist.decorateCommandStringAroundInsertionPoint(!0);else{const i=this.suggestionIndex%e.length,s=t.length-e[i].match.length;0!==s&&this.mathlist.insertSuggestion(e[i].match,s),Ze.showPopoverWithLatex(this,e[i].match,e.length>1)}this._requestUpdate()}nextSuggestion_(){return this.suggestionIndex+=1,this._updateSuggestion(),!1}previousSuggestion_(){if(this.suggestionIndex-=1,this.suggestionIndex<0){this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=wt.suggest(t);this.suggestionIndex=e.length-1}return this._updateSuggestion(),!1}_attachButtonHandlers(t,e){const i=this;let s,a,o,n,r;"object"==typeof 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t=i.start;t"placeholder"===t.type));this.setExtent(0),this.path[this.path.length-1].offset=e.start-1,0!==i.length&&this.leap(1,!1)||this.setSelection(e.start+t.length-1)}else this.siblings().splice(e.start,e.end-e.start),this.setSelection(e.start-1,0);this.contentDidChange()}},ke.prototype.removeCommandString=function(){this.contentWillChange();const t=this.suppressChangeNotifications;this.suppressChangeNotifications=!0,function t(e){if(e)if(Array.isArray(e))for(let i=e.length-1;i>=0;i--)"command"===e[i].type?e.splice(i,1):t(e[i]);else if(t(e.body),t(e.superscript),t(e.subscript),t(e.underscript),t(e.overscript),t(e.numer),t(e.denom),t(e.index),e.array)for(let i=Me(e.array);i>=0;i--)t(Ae(e.array,i))}(this.root.body),this.suppressChangeNotifications=t,this.contentDidChange()},ke.prototype.extractArgBeforeInsertionPoint=function(){const t=this.siblings();if(t.length<=1)return[];const e=[];let i=this.startOffset();if("text"===t[i].mode)for(;i>=1&&"text"===t[i].mode;)e.unshift(t[i]),i--;else for(;i>=1&&/^(mord|surd|msubsup|leftright|mop)$/.test(t[i].type);)e.unshift(t[i]),i--;return e},ke.prototype.setSelection=function(t,e,i){t=t||0,e=e||0;const s=this.path[this.path.length-1].relation;i||(i=s);const a=this.parent();if(!a&&"body"!==i)return!1;const o=i.startsWith("cell");if(!o&&!a[i]||o&&!a.array)return!1;const n=i!==s;this.path[this.path.length-1].relation=i;const r=this.siblings().length;this.path[this.path.length-1].relation=s;const l=this.extent;"end"===e?e=r-t-1:"start"===e&&(e=-t),this.setExtent(e);const c=this.extent!==l;this.setExtent(l),t<0&&(t=r+t),t=Math.max(0,Math.min(t,r-1));const h=this.path[this.path.length-1].offset;return(n||h!==t||c)&&(n&&this.adjustPlaceholder(),this.selectionWillChange(),this.path[this.path.length-1].relation=i,this.path[this.path.length-1].offset=t,this.setExtent(e),this.selectionDidChange()),!0},ke.prototype.next=function(t){t=t||{};const e={body:"numer",numer:"denom",denom:"index",index:"overscript",overscript:"underscript",underscript:"subscript",subscript:"superscript"};if(this.anchorOffset()===this.siblings().length-1){this.adjustPlaceholder();let i=e[this.relation()];const s=this.parent();for(;i&&!s[i];)i=e[i];if(i)return void this.setSelection(0,0,i);if(this.parent().array){const t=Me(this.parent().array);let e=parseInt(this.relation().match(/cell([0-9]*)$/)[1])+1;for(;e=0;){if(Ae(this.parent().array,t)&&this.setSelection(-1,0,"cell"+t))return void this.selectionDidChange();t-=1}}return 1===this.path.length?(this.suppressChangeNotifications||!this.config.onMoveOutOf||this.config.onMoveOutOf.bind(this)(-1))&&(this.path[0].offset=this.root.body.length-1):(this.path.pop(),this.setSelection(this.anchorOffset()-1)),void this.selectionDidChange()}const i=this.anchor();if(!i.captureSelection){let t;if(i.array){t="";const e=Me(i.array);let s=e-1;for(;!t&&s0)for(this.collapseForward()&&t--;t>0;)this.next(),t--;else if(t<0)for(this.collapseBackward()&&t++;0!==t;)this.previous(),t++;this._announce("move",e)}},ke.prototype.up=function(t){const e=(t=t||{extend:!1}).extend||!1;this.collapseBackward();const i=this.relation();if("denom"===i)e?(this.selectionWillChange(),this.path.pop(),this.path[this.path.length-1].offset-=1,this.setExtent(1),this.selectionDidChange()):this.setSelection(this.anchorOffset(),0,"numer"),this._announce("moveUp");else if(this.parent().array){let e=Se(this.parent().array,i);e=_e(this.parent().array,e,-1),e&&Ae(e)?(this.path[this.path.length-1].relation="cell"+we(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveUp")):this.move(-1,t)}else this._announce("line")},ke.prototype.down=function(t){const e=(t=t||{extend:!1}).extend||!1;this.collapseForward();const i=this.relation();if("numer"===i)e?(this.selectionWillChange(),this.path.pop(),this.path[this.path.length-1].offset-=1,this.setExtent(1),this.selectionDidChange()):this.setSelection(this.anchorOffset(),0,"denom"),this._announce("moveDown");else if(this.parent().array){let e=Se(this.parent().array,i);e=_e(this.parent().array,e,1),e&&Ae(e)?(this.path[this.path.length-1].relation="cell"+we(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveDown")):this.move(1,t)}else this._announce("line")},ke.prototype.extend=function(t){let e=this.path[this.path.length-1].offset,i=0;const s=ve(this);i=this.extent+t;const a=e+i;if(a<0&&0!==i){if(this.path.length>1)return this.selectionWillChange(),this.path.pop(),this.setExtent(-1),this.selectionDidChange(),void this._announce("move",s);e=this.path[this.path.length-1].offset,i=this.extent}else if(a>=this.siblings().length){if(this.path.length>1)return this.selectionWillChange(),this.path.pop(),this.path[this.path.length-1].offset-=1,this.setExtent(1),this.selectionDidChange(),void this._announce("move",s);this.isCollapsed()&&(e-=1),i-=1}this.setSelection(e,i),this._announce("move",s)},ke.prototype.skip=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const s=ve(this),a=this.siblings(),o=this.focusOffset();let n=o+t;if(i&&(n=Math.min(Math.max(0,n),a.length-1)),n<0||n>=a.length)this.move(t,e);else{if(a[n]&&"text"===a[n].mode){if(n=this.wordBoundaryOffset(n,t),n<0&&!i)return void this.setSelection(0);if(n>a.length)return this.setSelection(a.length-1),void this.move(t,e)}else{const e=a[n]?a[n].type:"";if("mopen"===e&&t>0||"mclose"===e&&t<0){let i="mopen"===e?1:-1;for(n+=t>0?1:-1;n>=0&&n0&&(n-=1)}else{for(;a[n]&&"math"===a[n].mode&&a[n].type===e;)n+=t;n-=t>0?1:0}}if(i){const t=this.anchorOffset();this.setSelection(t,n-t)}else this.setSelection(n);this._announce("move",s)}},ke.prototype.jump=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const s=this.siblings();let a=this.focusOffset();t>0&&(a=Math.min(a+1,s.length-1));const o=t<0?0:s.length-1;i?this.extend(o-a):this.move(o-a)},ke.prototype.jumpToMathFieldBoundary=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=(t=t||1)<0?-1:1;const s=ve(this),a=[{relation:"body",offset:this.path[0].offset}];let o;i?t<0?a[0].offset>0&&(o=-a[0].offset):a[0].offset"placeholder"===e.type||t.length>1&&1===this.siblings().length,t);if(0===o.length){if(this.setPath(s,a),e)if(this.config.onTabOutOf)this.config.onTabOutOf(this.target,t>0?"forward":"backward");else if(document.activeElement){const e='a[href]:not([disabled]),\n button:not([disabled]),\n textarea:not([disabled]),\n input[type=text]:not([disabled]),\n select:not([disabled]),\n [contentEditable="true"],\n [tabindex]:not([disabled]):not([tabindex="-1"])',i=Array.prototype.filter.call(document.querySelectorAll(e),t=>(t.offsetWidth>0||t.offsetHeight>0)&&!t.contains(document.activeElement)||t===document.activeElement);let s=i.indexOf(document.activeElement)+t;s<0&&(s=i.length-1),s>=i.length&&(s=0),i[s].focus()}return this.suppressChangeNotifications=i,!1}return this.selectionWillChange(),this.setPath(o[0]),"placeholder"===this.anchor().type&&this.setExtent(-1),this._announce("move",s),this.selectionDidChange(),this.suppressChangeNotifications=i,!0},ke.prototype.anchorMode=function(){const t=this.isCollapsed()?this.anchor():this.sibling(1);let e;if(t){if("commandliteral"===t.type||"command"===t.type)return"command";e=t.mode}let i=1,s=this.ancestor(i);for(;!e&&s;)s&&(e=s.mode),i+=1,s=this.ancestor(i);return e},ke.prototype.anchorStyle=function(){const t=this.isCollapsed()?this.anchor():this.sibling(1);let e;if(t&&"first"!==t.type){if("commandliteral"===t.type||"command"===t.type)return{};e={color:t.color,backgroundColor:t.backgroundColor,fontFamily:t.fontFamily,fontShape:t.fontShape,fontSeries:t.fontSeries,fontSize:t.fontSize}}let i=1,s=this.ancestor(i);for(;!e&&s;)s&&(e={color:s.color,backgroundColor:s.backgroundColor,fontFamily:s.fontFamily,fontShape:s.fontShape,fontSeries:s.fontSeries,fontSize:s.fontSize}),i+=1,s=this.ancestor(i);return e},ke.prototype.simplifyParen=function(t){if(t&&this.config.removeExtraneousParentheses){for(let e=0;t[e];e++)if("leftright"===t[e].type&&"("===t[e].leftDelim&&Array.isArray(t[e].body)){let i=0,s=0,a=0;for(let o=0;t[e].body[o];o++)"genfrac"===t[e].body[o].type&&(i++,s=o),"first"!==t[e].body[o].type&&a++;0===a&&1===i&&(t[e]=t[e].body[s])}t.forEach(t=>{if("genfrac"===t.type&&(this.simplifyParen(t.numer),this.simplifyParen(t.denom),t.numer=Fe(t.numer),t.denom=Fe(t.denom)),t.superscript&&(this.simplifyParen(t.superscript),t.superscript=Fe(t.superscript)),t.subscript&&(this.simplifyParen(t.subscript),t.subscript=Fe(t.subscript)),t.underscript&&(this.simplifyParen(t.underscript),t.underscript=Fe(t.underscript)),t.overscript&&(this.simplifyParen(t.overscript),t.overscript=Fe(t.overscript)),t.index&&(this.simplifyParen(t.index),t.index=Fe(t.index)),"surd"===t.type?(this.simplifyParen(t.body),t.body=Fe(t.body)):t.body&&Array.isArray(t.body)&&this.simplifyParen(t.body),t.array)for(let e=Me(t.array);e>=0;e--)this.simplifyParen(Ae(t.array,e))})}},ke.prototype.insert=function(t,e){if((e=e||{}).smartFence&&this._insertSmartFence(t,e.style))return;const i=this.suppressChangeNotifications;e.suppressChangeNotifications&&(this.suppressChangeNotifications=!0),this.contentWillChange();const s=this.suppressChangeNotifications;this.suppressChangeNotifications=!0,e.insertionMode||(e.insertionMode="replaceSelection"),e.selectionMode||(e.selectionMode="placeholder"),e.format||(e.format="auto"),e.macros=e.macros||this.config.macros;const a=e.mode||this.anchorMode();let o;const r=[this.getSelectedAtoms()];void 0!==e.placeholder&&(r["?"]=e.placeholder),"replaceSelection"!==e.insertionMode||this.isCollapsed()?"replaceAll"===e.insertionMode?(this.root.body.splice(1),this.path=[{relation:"body",offset:0}],this.extent=0):"insertBefore"===e.insertionMode?this.collapseBackward():"insertAfter"===e.insertionMode&&this.collapseForward():this.delete_();const l=this.siblings(),c=this.startOffset();if(c+10&&l[c]&&"placeholder"===l[c].type&&this.delete_(-1),"math"===a&&"ASCIIMath"===e.format)t=De(t,{...this.config,format:"ASCIIMath"}),o=le.parseTokens(n(t),"math",null,e.macros,!1),this.simplifyParen(o);else if("text"!==a&&"auto"===e.format)if("command"===a){o=[];for(const e of t)wt.COMMAND_MODE_CHARACTERS.test(e)&&o.push(new Yt.MathAtom("command","command",e))}else""===t?o=[new Yt.MathAtom("command","command","\\")]:(t=De(t,this.config),r[0]?t=t.replace(/(^|[^\\])#@/g,"$1#0"):/(^|[^\\])#@/.test(t)?(t=t.replace(/(^|[^\\])#@/g,"$1#0"),r[0]=this.extractArgBeforeInsertionPoint(),this._deleteAtoms(-r[0].length),Array.isArray(r[0])&&0===r[0].length&&(r[0]=void 0)):t=t.replace(/(^|[^\\])#@/g,"$1#?"),o=le.parseTokens(n(t),a,r,e.macros,e.smartFence),this.simplifyParen(o));else"latex"===e.format?o=le.parseTokens(n(t),a,r,e.macros,e.smartFence):"text"!==a&&"text"!==e.format||(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=t.replace(/\\/g,"\\textbackslash ")).replace(/#/g,"\\#")).replace(/\$/g,"\\$")).replace(/%/g,"\\%")).replace(/&/g,"\\&")).replace(/_/g,"\\_")).replace(/{/g,"\\textbraceleft ")).replace(/}/g,"\\textbraceright ")).replace(/\^/g,"\\textasciicircum ")).replace(/~/g,"\\textasciitilde ")).replace(/£/g,"\\textsterling "),o=le.parseTokens(n(t),"text",r,e.macros,!1));!function t(e,i){e&&i&&(Array.isArray(e)?e.forEach(e=>t(e,i)):"object"==typeof e&&(e.color||e.backgroundColor||e.fontFamily||e.fontShape||e.fontSeries||e.fontSize||(e.applyStyle(i),t(e.body,i),t(e.numer,i),t(e.denom,i),t(e.index,i),t(e.overscript,i),t(e.underscript,i),t(e.subscript,i),t(e.superscript,i))))}(o,e.style);const h=this.parent();if(this.config.removeExtraneousParentheses&&h&&"leftright"===h.type&&"("===h.leftDelim&&function(t){return 0===t.length||1===t.length&&"first"===t[0].type}(h.body)&&o&&1===o.length&&"genfrac"===o[0].type?(this.path.pop(),this.siblings()[this.anchorOffset()]=o[0]):Array.prototype.splice.apply(this.siblings(),[this.anchorOffset()+1,0].concat(o)),this.insertFirstAtom(),this.suppressChangeNotifications=s,"placeholder"===e.selectionMode){let t=[];for(const e of o)t=t.concat(e.filter(t=>"placeholder"===t.type));0!==t.length&&this.leap(1,!1)?this._announce("move"):this.setSelection(this.anchorOffset()+o.length)}else"before"===e.selectionMode||("after"===e.selectionMode?this.setSelection(this.anchorOffset()+o.length):"item"===e.selectionMode&&this.setSelection(this.anchorOffset(),o.length));this.contentDidChange(),this.suppressChangeNotifications=i},ke.prototype._insertSmartFence=function(t,e){const i=this.parent();if("leftright"===i.type&&"|"!==i.leftDelim&&/\||\\vert|\\Vert|\\mvert|\\mid/.test(t))return this.insert("\\,\\middle"+t+"\\, ",{mode:"math",format:"latex",style:e}),!0;"{"!==t&&"\\{"!==t||(t="\\lbrace"),"}"!==t&&"\\}"!==t||(t="\\rbrace"),"["!==t&&"\\["!==t||(t="\\lbrack"),"]"!==t&&"\\]"!==t||(t="\\rbrack");const s=wt.RIGHT_DELIM[t];if(s&&("leftright"!==i.type||"|"!==i.leftDelim)){let i="";const a=this.isCollapsed()||"placeholder"===this.anchor().type;i=this.sibling(0).isFunction?"\\mleft"+t+"\\mright":"\\left"+t+"\\right",i+=a?"?":s;let o=[];return a&&(o=this.siblings().splice(this.anchorOffset()+1,this.siblings().length)),this.insert(i,{mode:"math",format:"latex",style:e}),a&&(this.sibling(0).body=o,this.move(-1)),!0}let a;if(Object.keys(wt.RIGHT_DELIM).forEach(e=>{t===wt.RIGHT_DELIM[e]&&(a=e)}),a){if(i&&"leftright"===i.type&&this.endOffset()===this.siblings().length-1)return this.contentWillChange(),i.rightDelim=t,this.move(1),this.contentDidChange(),!0;const s=this.siblings();let a;for(a=this.endOffset();a>=0&&("leftright"!==s[a].type||"?"!==s[a].rightDelim);a--);if(a>=0)return this.contentWillChange(),s[a].rightDelim=t,s[a].body=s[a].body.concat(s.slice(a+1,this.endOffset()+1)),s.splice(a+1,this.endOffset()-a),this.setSelection(a),this.contentDidChange(),!0;if(i&&"leftright"===i.type&&"?"===i.rightDelim){this.contentWillChange(),i.rightDelim=t;const e=s.slice(this.endOffset()+1);return s.splice(this.endOffset()+1),this.path.pop(),Array.prototype.splice.apply(this.siblings(),[this.endOffset()+1,0].concat(e)),this.contentDidChange(),!0}const o=this.ancestor(2);return o&&"leftright"===o.type&&"?"===o.rightDelim&&this.endOffset()===s.length-1?(this.move(1),this._insertSmartFence(t,e)):(this.insert(t,{mode:"math",format:"latex",style:e}),!0)}return!1},ke.prototype.positionInsertionPointAfterCommitedCommand=function(){const t=this.siblings(),e=this.commandOffsets();let i=e.start;for(;i=0;e--)t[e].suggestion&&t.splice(e,1)},ke.prototype.insertSuggestion=function(t,e){this.removeSuggestion();const i=[],s=t.substr(e);for(const t of s){const e=new Yt.MathAtom("command","command",t);e.suggestion=!0,i.push(e)}Array.prototype.splice.apply(this.siblings(),[this.anchorOffset()+1,0].concat(i))},ke.prototype._deleteAtoms=function(t){t>0?this.siblings().splice(this.anchorOffset()+1,t):(this.siblings().splice(this.anchorOffset()+t+1,-t),this.setSelection(this.anchorOffset()+t))},ke.prototype.delete=function(t){if(0===(t=t||0))this.delete_(0);else if(t>0)for(;t>0;)this.delete_(1),t--;else for(;t<0;)this.delete_(-1),t++},ke.prototype.delete_=function(t){this.contentWillChange(),this.selectionWillChange();const e=this.suppressChangeNotifications;if(this.suppressChangeNotifications=!0,t=(t=t||0)<0?-1:t>0?1:t,this.removeSuggestion(),this.parent().array&&t<0&&0===this.startOffset()){const t=this.parent().array;if(function(t){const e={col:0,row:0};for(;e.row0){let t=e.length;"first"===e[0].type&&(t-=1),t>0&&(i+=1)}s.row+=1}return i}(t,e.col)){!function(t,e){let i=0;for(;i"placeholder"!==t.type&&"first"!==t.type);this.parent()[t]=null,this.path.pop(),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),0].concat(e)),this.setSelection(this.anchorOffset()-1),this._announce("deleted: "+t)}else if("denom"===t){const t=this.parent().numer.filter(t=>"placeholder"!==t.type&&"first"!==t.type),e=this.parent().denom.filter(t=>"placeholder"!==t.type&&"first"!==t.type);this.path.pop(),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),1].concat(e)),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),0].concat(t)),this.setSelection(this.anchorOffset()+t.length-1),this._announce("deleted: denominator")}else if("body"===t){const t=this.siblings().filter(t=>"placeholder"!==t.type);this.path.length>1&&(t.shift(),this.path.pop(),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),1].concat(t)),this.setSelection(this.anchorOffset()-1),this._announce("deleted: root"))}else this.move(-1),this.delete(-1)}else if(t>0)if(e!==i.length-1)/^(group|array|genfrac|surd|leftright|overlap|overunder|box|mathstyle|sizing)$/.test(this.sibling(1).type)?this.move(1):(this._announce("delete",null,i.slice(e+1,e+2)),i.splice(e+1,1));else if("numer"===this.relation()){const t=this.parent().numer.filter(t=>"placeholder"!==t.type&&"first"!==t.type),e=this.parent().denom.filter(t=>"placeholder"!==t.type&&"first"!==t.type);this.path.pop(),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),1].concat(e)),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),0].concat(t)),this.setSelection(this.anchorOffset()+t.length-1),this._announce("deleted: numerator")}else this.move(1),this.delete(-1)}else{const 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"}}return s},Yt.toSpeakableText=function(t,e){const i=e?JSON.parse(JSON.stringify(e)):{textToSpeechMarkup:"",textToSpeechRules:"mathlive"};if(i.speechMode="math",window.sre&&"sre"===i.textToSpeechRules){i.generateID=!0;const e=Yt.toMathML(t,i);return e?(i.textToSpeechMarkup&&(i.textToSpeechRulesOptions=i.textToSpeechRulesOptions||{},i.textToSpeechRulesOptions.markup=i.textToSpeechMarkup,"ssml"===i.textToSpeechRulesOptions.markup&&(i.textToSpeechRulesOptions.markup="ssml_step"),i.textToSpeechRulesOptions.rate=i.speechEngineRate),i.textToSpeechRulesOptions&&window.sre.System.getInstance().setupEngine(i.textToSpeechRulesOptions),window.sre.System.getInstance().toSpeech(e)):""}let s=Yt.toSpeakableFragment(t,i);if("ssml"===i.textToSpeechMarkup){let t="";i.speechEngineRate&&(t=''),s=''+t+""+s+"
"+(t?"":"")+""}else s="mac"===i.textToSpeechMarkup&&"mac"===function(t){let e="other";return navigator&&navigator.platform&&navigator.userAgent&&(/^(mac)/i.test(navigator.platform)?e="mac":/^(win)/i.test(navigator.platform)?e="win":/(android)/i.test(navigator.userAgent)?e="android":/(iphone)/i.test(navigator.userAgent)||/(ipod)/i.test(navigator.userAgent)||/(ipad)/i.test(navigator.userAgent)?e="ios":/\bCrOS\b/i.test(navigator.userAgent)&&(e="chromeos")),e===t?t:"!"+t}("mac")?s.replace(//g,"").replace(//g,"[[emph+]]").replace(/<\/emphasis>/g,"").replace(//g,"[[slc $1]]").replace(/]*>/g,"").replace(/<\/say-as>/g,""):s.replace(/<[^>]*>/g,"").replace(/\s{2,}/g," ");return s};class xs{constructor(t,e){this.$setConfig(e||{}),this.element=t,t.mathfield=this,this.originalContent=t.innerHTML;let i=this.element.textContent;i&&(i=i.trim());let s="";this.config.substituteTextArea?"string"==typeof this.config.substituteTextArea?s+=this.config.substituteTextArea:s+="":/android|ipad|ipod|iphone/i.test(navigator.userAgent)?s+="\n \n \n ":s+='',s+='',this.config.virtualKeyboardMode||(this.config.virtualKeyboardMode=window.matchMedia&&window.matchMedia("(any-pointer: coarse)").matches?"onfocus":"off"),"manual"===this.config.virtualKeyboardMode?(s+=`"):s+="",s+="",s+='\n \n \n \n
\n ',this.element.innerHTML=s;let a=0;"function"==typeof this.config.substituteTextArea?this.textarea=this.config.substituteTextArea():this.textarea=this.element.children[a++].firstElementChild,this.field=this.element.children[a].children[0],this.field.addEventListener("wheel",t=>{t.preventDefault(),t.stopPropagation();let e=void 0===t.deltaX?t.detail:-t.deltaX;isFinite(e)||(e=t.wheelDelta/10),this.field.scroll({top:0,left:this.field.scrollLeft-5*e})},{passive:!1}),this.virtualKeyboardToggleDOMNode=this.element.children[a++].children[1],this._attachButtonHandlers(this.virtualKeyboardToggleDOMNode,{default:"toggleVirtualKeyboard",alt:"toggleVirtualKeyboardAlt",shift:"toggleVirtualKeyboardShift"}),this.ariaLiveText=this.element.children[a].children[0],this.accessibleNode=this.element.children[a++].children[1],this.popover=gs("mathlive-popover-panel","ML__popover"),this.keystrokeCaption=gs("mathlive-keystroke-caption-panel","ML__keystroke-caption"),this.keystrokeCaptionVisible=!1,this.virtualKeyboardVisible=!1,this.keystrokeBuffer="",this.keystrokeBufferStates=[],this.keystrokeBufferResetTimer=null,this.suggestionIndex=0,this.mode=e.defaultMode||"math",this.smartModeSuppressed=!1,this.style={},this.blurred=!0,us(this.element,"focus",this),us(this.element,"blur",this),us(this.textarea,"cut",this),us(this.textarea,"copy",this),us(this.textarea,"paste",this),$e.delegateKeyboardEvents(this.textarea,{container:this.element,allowDeadKey:()=>"text"===this.mode,typedText:this._onTypedText.bind(this),paste:this._onPaste.bind(this),keystroke:this._onKeystroke.bind(this),focus:this._onFocus.bind(this),blur:this._onBlur.bind(this)}),window.PointerEvent?us(this.field,"pointerdown",this):us(this.field,"touchstart:active mousedown",this),us(window,"resize",this);const o={...e};o.onSelectionDidChange=xs.prototype._onSelectionDidChange.bind(this),o.onContentDidChange=xs.prototype._onContentDidChange.bind(this),o.onAnnounce=this.config.onAnnounce,o.macros=this.config.macros,o.removeExtraneousParentheses=this.config.removeExtraneousParentheses,this.mathlist=new Pe.EditableMathlist(o,this),this.undoManager=new class{constructor(t){this.mathlist=t,this.maximumDepth=1e3,this.record=!1,this.canCoalesce=!1,this.reset()}reset(){this.stack=[],this.index=-1}startRecording(){this.record=!0}canUndo(){return this.index>0}canRedo(){return this.index!==this.stack.length-1}undo(t){this.canUndo()&&(t&&"function"==typeof t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"undo"),this.restore(this.stack[this.index-1],t),this.index-=1,t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"undo"),this.canCoalesce=!1)}redo(t){this.canRedo()&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"redo"),this.index+=1,this.restore(this.stack[this.index],t),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"redo"),this.canCoalesce=!1)}pop(){this.canUndo()&&(this.index-=1,this.stack.pop())}snapshot(t){this.record&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"snapshot"),this.stack.splice(this.index+1,this.stack.length-this.index-1),this.stack.push({latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}),this.index++,this.stack.length>this.maximumDepth&&this.stack.shift(),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"snapshot"),this.canCoalesce=!1)}snapshotAndCoalesce(t){this.canCoalesce&&this.pop(),this.snapshot(t),this.canCoalesce=!0}save(){return{latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}}restore(t,e){const i=this.mathlist.suppressChangeNotifications;void 0!==e.suppressChangeNotifications&&(this.mathlist.suppressChangeNotifications=e.suppressChangeNotifications),this.mathlist.insert(t?t.latex:"",{mode:"math",insertionMode:"replaceAll",selectionMode:"after",format:"latex",...e}),this.mathlist.setPath(t?t.selection:[{relation:"body",offset:0}]),this.mathlist.suppressChangeNotifications=i}}(this.mathlist),i.length>0&&this.$latex(i),this.undoManager.startRecording(),this.undoManager.snapshot(this.config)}handleEvent(t){switch(t.type){case"focus":this._onFocus(t);break;case"blur":this._onBlur(t);break;case"touchstart":case"mousedown":case"pointerdown":this._onPointerDown(t);break;case"resize":this._resizeTimer&&window.cancelAnimationFrame(this._resizeTimer),this._resizeTimer=window.requestAnimationFrame(()=>bs(this)&&this._onResize());break;case"cut":this._onCut(t);break;case"copy":this._onCopy(t);break;case"paste":this._onPaste(t)}}$revertToOriginalContent(){this.element.innerHTML=this.originalContent,this.element.mathfield=null,delete this.accessibleNode,delete this.ariaLiveText,delete this.field,fs(this.textarea,"cut",this),fs(this.textarea,"copy",this),fs(this.textarea,"paste",this),this.textarea.remove(),delete this.textarea,this.virtualKeyboardToggleDOMNode.remove(),delete this.virtualKeyboardToggleDOMNode,ys(this.popover),ys(this.keystrokeCaption),ys(this.virtualKeyboard),ys(document.getElementById("mathlive-alternate-keys-panel")),fs(this.element,"pointerdown",this),fs(this.element,"touchstart:active mousedown",this),fs(this.element,"focus",this),fs(this.element,"blur",this),fs(window,"resize",this),delete this.element}_resetKeystrokeBuffer(){this.keystrokeBuffer="",this.keystrokeBufferStates=[],clearTimeout(this.keystrokeBufferResetTimer)}_getCaretPosition(){const t=function t(e){if(e.classList.contains("ML__caret")||e.classList.contains("ML__text-caret")||e.classList.contains("ML__command-caret"))return e;let i;return Array.from(e.children).forEach((function(e){i=i||t(e)})),i}(this.field);if(t){const e=t.getBoundingClientRect();return{x:e.right,y:e.bottom,height:e.height}}return null}_getSelectionBounds(){const t=this.field.querySelectorAll(".ML__selected");if(t&&t.length>0){const e={top:1/0,bottom:-1/0,left:1/0,right:-1/0};t.forEach(t=>{const i=t.getBoundingClientRect();i.lefte.right&&(e.right=i.right),i.bottom>e.bottom&&(e.bottom=i.bottom),i.top=t.left&&i<=t.right}return o&&e.children&&Array.from(e.children).forEach((function(e){const o=t(e,i,s);o.element&&o.distance<=a.distance&&(a=o)})),a}(this.field,t,e).element,o=a?a.getAttribute("data-atom-id"):null;if(o){const e=this.mathlist.filter((function(t,e){return e.captureSelection?e.filter(t=>t.id===o).length>0:e.id===o}));if(e&&e.length>0)if(s=de.pathFromString(e[0]).path,0===i.bias){const e=a.getBoundingClientRect();tt.parentNode.removeChild(t)),t.preventDefault(),t.stopPropagation()}let r=!1,l=!1;const c=setInterval(()=>{r?e.field.scroll({top:0,left:e.field.scrollLeft-16}):l&&e.field.scroll({top:0,left:e.field.scrollLeft+16})},32);function h(t){const s=t.touches?t.touches[0].clientX:t.clientX,o=t.touches?t.touches[0].clientY:t.clientY,n="touch"===t.pointerType?20:5;if(Date.now()c.right,r=s=u.left&&d<=u.right&&p>=u.top&&p<=u.bottom){if(this.$hasFocus()||(o=!0,this.textarea.focus&&this.textarea.focus()),this._resetKeystrokeBuffer(),this.smartModeSuppressed=!1,i=this._pathFromPoint(d,p,{bias:0}),i){let r=document.createElement("div");r.className="ML__scroller",this.element.appendChild(r),r.style.left=u.left-200+"px",r=document.createElement("div"),r.className="ML__scroller",this.element.appendChild(r),r.style.left=u.right+"px",t.shiftKey?(this.mathlist.setRange(this.mathlist.path,i),i=de.clone(this.mathlist.path),i[i.length-1].offset-=1):this.mathlist.setPath(i,0),o=!0,this.style={},3===t.detail||vs>2?(n(t),3!==t.detail&&3!==vs||this.mathlist.selectAll_()):s||(s=!0,window.PointerEvent?(us(e.field,"pointermove",h),us(e.field,"pointerend pointercancel pointerup",n),e.field.setPointerCapture(t.pointerId)):(us(window,"blur",n),t.touches?(us(t.target,"touchmove",h),us(t.target,"touchend",n)):(us(window,"mousemove",h),us(window,"mouseup",n))),2!==t.detail&&2!==vs||(a=!0,this.mathlist.selectGroup_()))}}else ks=null;o&&this._requestUpdate(),t.preventDefault()}_onSelectionDidChange(){this.mathlist.commitCommandStringBeforeInsertionPoint();let t="";this.mathlist.forEachSelected(e=>{t+=e.toLatex()}),t?(this.textarea.value=t,this.$hasFocus()&&this.textarea.select&&this.textarea.select()):(this.textarea.value="",this.textarea.setAttribute("aria-label",""));{const t=this.mode;this.mode=this.mathlist.anchorMode()||this.config.defaultMode,this.mode!==t&&"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode),"command"===t&&"command"!==this.mode&&(Ze.hidePopover(this),this.mathlist.removeCommandString())}Ze.updatePopoverPosition(this,{deferred:!0}),"function"==typeof this.config.onSelectionDidChange&&this.config.onSelectionDidChange(this),this.removeIsolatedSpace_(),this.mathlist.contentDidChange()}_onContentDidChange(){this.undoManager.canRedo()?this.element.classList.add("can-redo"):this.element.classList.remove("can-redo"),this.undoManager.canUndo()?this.element.classList.add("can-undo"):this.element.classList.remove("can-undo"),"function"==typeof this.config.onContentDidChange&&this.config.onContentDidChange(this)}_nextAtomSpeechText(t){function e(t,e){return"body"===e.relation?{enclose:"cross out",leftright:"fence",surd:"square root",root:"math field"}[t.type]:{numer:"numerator",denom:"denominator",index:"index",body:"parent",subscript:"subscript",superscript:"superscript"}[e.relation]}const i=t?t.path:[],s=this.mathlist.path,a=s[s.length-1];let o="";for(;i.length>s.length;)o+="out of "+e(t.parent(),i[i.length-1])+"; ",i.pop();if(!this.mathlist.isCollapsed())return ws(this,"",this.mathlist.getSelectedAtoms());const n=e(this.mathlist.parent(),a);0===a.offset&&(o+=(n?"start of "+n:"unknown")+": ");const r=this.mathlist.sibling(Math.max(1,this.mathlist.extent));return r?o+=ws(this,"",r):0!==a.offset&&(o+=n?"end of "+n:"unknown"),o}_announce(t,e,i){"function"==typeof this.config.onAnnounce&&this.config.onAnnounce(this,t,e,i)}_onFocus(){this.blurred&&(this.blurred=!1,this.textarea.focus&&this.textarea.focus(),"onfocus"===this.config.virtualKeyboardMode&&this.showVirtualKeyboard_(),Ze.updatePopoverPosition(this),this.config.onFocus&&this.config.onFocus(this),this._requestUpdate())}_onBlur(){this.blurred||(this.blurred=!0,this.ariaLiveText.textContent="","onfocus"===this.config.virtualKeyboardMode&&this.hideVirtualKeyboard_(),this.complete_({discard:!0}),this._requestUpdate(),this.config.onBlur&&this.config.onBlur(this))}_onResize(){this.element.classList.remove("ML__isNarrowWidth","ML__isWideWidth","ML__isExtendedWidth"),window.innerWidth>=1024?this.element.classList.add("ML__isExtendedWidth"):window.innerWidth>=768?this.element.classList.add("ML__isWideWidth"):this.element.classList.add("ML__isNarrowWidth"),Ze.updatePopoverPosition(this)}toggleKeystrokeCaption_(){this.keystrokeCaptionVisible=!this.keystrokeCaptionVisible,this.keystrokeCaption.innerHTML="",this.keystrokeCaptionVisible||(this.keystrokeCaption.style.visibility="hidden")}_showKeystroke(t){const e=this.keystrokeCaption;if(e&&this.keystrokeCaptionVisible){const i=this.element.getBoundingClientRect();e.style.left=i.left+"px",e.style.top=i.top-64+"px",e.innerHTML=""+(xe.stringify(t)||t)+""+e.innerHTML,e.style.visibility="visible",setTimeout((function(){e.childNodes.length>0&&e.removeChild(e.childNodes[e.childNodes.length-1]),0===e.childNodes.length&&(e.style.visibility="hidden")}),3e3)}}$perform(t){if(!t)return!1;let e,i=!1,s=[],a=!1;if(Array.isArray(t)?(e=t[0],s=t.slice(1)):e=t,e=e.replace(/-\w/g,t=>t[1].toUpperCase()),e+="_","function"==typeof this.mathlist[e]){if(/^(delete|transpose|add)/.test(e)&&this._resetKeystrokeBuffer(),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&(this.undoManager.pop(),this.undoManager.snapshot(this.config)),this.mathlist[e](...s),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&this.undoManager.snapshot(this.config),/^(delete)/.test(e)&&"command"===this.mode){const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=wt.suggest(t);0===e.length?Ze.hidePopover(this):Ze.showPopoverWithLatex(this,e[0].match,e.length>1)}a=!0,i=!0}else"function"==typeof this[e]&&(a=this[e](...s),i=!0);return this.mathlist.isCollapsed()&&!/^(transpose|paste|complete|((moveToNextChar|moveToPreviousChar|extend).*))_$/.test(e)||(this._resetKeystrokeBuffer(),this.style={}),a&&this._requestUpdate(),i}performWithFeedback_(t){return this.$focus(),this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),"moveToNextPlaceholder"===(t=t.replace(/-\w/g,t=>t[1].toUpperCase()))||"moveToPreviousPlaceholder"===t||"complete"===t?this.returnKeypressSound?(this.returnKeypressSound.load(),this.returnKeypressSound.play().catch(t=>{})):this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):"deletePreviousChar"!==t&&"deleteNextChar"!==t&&"deletePreviousWord"!==t&&"deleteNextWord"!==t&&"deleteToGroupStart"!==t&&"deleteToGroupEnd"!==t&&"deleteToMathFieldStart"!==t&&"deleteToMathFieldEnd"!==t||!this.deleteKeypressSound?this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):(this.deleteKeypressSound.load(),this.deleteKeypressSound.play().catch(t=>{})),this.$perform(t)}convertLastAtomsToText_(t,e){"function"==typeof t&&(e=t,t=1/0),void 0===t&&(t=1/0);let i=0,s=!1;for(this.mathlist.contentWillChange();!s;){const a=this.mathlist.sibling(i);s=0===t||!a||"math"!==a.mode||!(/mord|textord|mpunct/.test(a.type)||"mop"===a.type&&/[a-zA-Z]+/.test(a.body))||a.superscript||a.subscript||e&&!e(a),s||(a.applyStyle({mode:"text"}),a.latex=a.body),i-=1,t-=1}this.mathlist.contentDidChange()}convertLastAtomsToMath_(t,e){"function"==typeof t&&(e=t,t=1/0),void 0===t&&(t=1/0),this.mathlist.contentWillChange();let i=0,s=!1;for(;!s;){const a=this.mathlist.sibling(i);s=0===t||!a||"text"!==a.mode||" "===a.body||e&&!e(a),s||a.applyStyle({mode:"math",type:"mord"}),i-=1,t-=1}this.removeIsolatedSpace_(),this.mathlist.contentDidChange()}removeIsolatedSpace_(){let t=0;for(;this.mathlist.sibling(t)&&"math"===this.mathlist.sibling(t).mode;)t-=1;if(this.mathlist.sibling(t)&&"text"===this.mathlist.sibling(t).mode&&" "===this.mathlist.sibling(t).body&&(!this.mathlist.sibling(t-1)||"math"===this.mathlist.sibling(t-1).mode)){this.mathlist.contentWillChange(),this.mathlist.siblings().splice(t-1,1),this.mathlist.contentDidChange();const e=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0,this.mathlist.setSelection(this.mathlist.anchorOffset()-1),this.mathlist.suppressChangeNotifications=e}}getTextBeforeAnchor_(){let t="",e=0,i=!1;for(;!i;){const s=this.mathlist.sibling(e);i=!(s&&("text"===s.mode&&!s.type||"math"===s.mode&&/mord|textord|mpunct/.test(s.type))),i||(t=s.body+t),e-=1}return t}smartMode_(t,e){if(this.smartModeSuppressed)return!1;if(this.mathlist.endOffset()1)return!1;if(!this.mathlist.isCollapsed())return!("text"!==this.mode||!/[/_^]/.test(i));const s=this.getTextBeforeAnchor_()+i;if("text"===this.mode){if("Esc"===t||/[/\\]/.test(i))return!0;if(/[\^_]/.test(i))return/(^|\s)[a-zA-Z][^_]$/.test(s)&&this.convertLastAtomsToMath_(1),!0;const e={")":"(","}":"{","]":"["}[i];if(e&&this.mathlist.parent()&&"leftright"===this.mathlist.parent().type&&this.mathlist.parent().leftDelim===e)return!0;if(/(^|[^a-zA-Z])(a|I)[ ]$/.test(s))return!1;if(/[$€£₤₺¥¤฿¢₡₧₨₹₩₱]/u.test(i))return!0;if(/(^|[^a-zA-Z'’])[a-zA-Z][ ]$/.test(s))return this.convertLastAtomsToMath_(1),!1;if(/[^0-9]\.[^0-9\s]$/.test(s)){this.convertLastAtomsToMath_(1);const t=this.mathlist.sibling(0);return t.body="⋅",t.autoFontFamily="cmr",t.latex="\\cdot",!0}if(/(^|\s)[a-zA-Z][^a-zA-Z]$/.test(s))return this.convertLastAtomsToMath_(1),!0;if(/\.[0-9]$/.test(s))return this.convertLastAtomsToMath_(1),!0;if(/[(][0-9+\-.]$/.test(s))return this.convertLastAtomsToMath_(1),!0;if(/[(][a-z][,;]$/.test(s))return this.convertLastAtomsToMath_(2),!0;if(/[0-9+\-=><*|]$/.test(i))return this.removeIsolatedSpace_(),!0}else{if("Spacebar"===t)return this.convertLastAtomsToText_(t=>/[a-z][:,;.]$/.test(t.body)),!0;if(/[a-zA-Z]{3,}$/.test(s)&&!/(dxd|abc|xyz|uvw)$/.test(s))return this.convertLastAtomsToText_(t=>/[a-zA-Z:,;.]/.test(t.body)),!0;if(/(^|\W)(if|If)$/i.test(s))return this.convertLastAtomsToText_(1),!0;if(/(\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5){3,}$/u.test(s)&&!/(αβγ)$/.test(s))return this.convertLastAtomsToText_(t=>/(:|,|;|.|\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5)/u.test(t.body)),!0;if(/\?|\./.test(i))return!0}return!1}_onKeystroke(t,e){if(this._showKeystroke(t),clearTimeout(this.keystrokeBufferResetTimer),this.config.onKeystroke&&!this.config.onKeystroke(this,t,e))return e&&e.preventDefault&&(e.preventDefault(),e.stopPropagation()),!1;let i,s,a,o=!1;if("command"!==this.mode&&(!e||!e.ctrlKey&&!e.metaKey)){const t=$e.eventToChar(e);if("Backspace"!==t)if(!t||t.length>1)this._resetKeystrokeBuffer();else{const e=this.keystrokeBuffer+t;let a=0;for(;!i&&a{this._resetKeystrokeBuffer()},this.config.inlineShortcutTimeout))}}if(this.config.smartMode){const s=this.mode;i?this.mode="math":this.smartMode_(t,e)&&(this.mode={math:"text",text:"math"}[this.mode],a=""),this.mode!==s&&"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode)}if(i||a||(a=xe.selectorForKeystroke(this.mode,t)),!i&&!a)return!0;this.mathlist.decorateCommandStringAroundInsertionPoint(!1);const r=this.mathlist.parent();if("moveAfterParent"===a&&r&&"leftright"===r.type&&this.mathlist.endOffset()===this.mathlist.siblings().length-1&&this.config.smartFence&&this.mathlist._insertSmartFence(".")&&(a="",this._requestUpdate()),"math"===this.mode&&"Spacebar"===t&&!i){const t=this.mathlist.sibling(1),e=this.mathlist.sibling(-1);(t&&"text"===t.mode||e&&"text"===e.mode)&&this.mathlist.insert(" ",{mode:"text"})}if((a&&!this.$perform(a)||i)&&i){if(!/^(\\{|\\}|\\[|\\]|\\@|\\#|\\$|\\%|\\^|\\_|\\backslash)$/.test(i)){const t={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert($e.eventToChar(e),{suppressChangeNotifications:!0,mode:this.mode,style:t});const i=this.mode;this.undoManager.snapshotAndCoalesce(this.config),this.undoManager.restore(this.keystrokeBufferStates[s],{...this.config,suppressChangeNotifications:!0}),this.mode=i}this.mathlist.contentWillChange();const t=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0;const a={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(i,{format:"latex",mode:this.mode,style:a,smartFence:!0}),this.removeIsolatedSpace_(),i.endsWith(" ")&&(this.mode="text",this.mathlist.insert(" ",{mode:"text",style:a})),this.mathlist.suppressChangeNotifications=t,this.mathlist.contentDidChange(),this.undoManager.snapshot(this.config),this._requestUpdate(),this._announce("replacement"),o&&this._resetKeystrokeBuffer()}return this.scrollIntoView(),e&&e.preventDefault&&(e.preventDefault(),e.stopPropagation()),!1}_onTypedText(t,e){if((e=e||{}).focus&&this.$focus(),e.feedback&&(this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{}))),e.commandMode&&"command"!==this.mode&&this.switchMode_("command"),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),e.simulateKeystroke){const e=t.charAt(0),i=$e.charToEvent(e);if(!this.$keystroke($e.keyboardEventToString(i),i))return}let i="",a=!1;if(this.pasteInProgress)this.pasteInProgress=!1,this.mathlist.insert(t,{smartFence:this.config.smartFence,mode:"math"});else{const e={...this.mathlist.anchorStyle(),...this.style},o=s(t);for(const t of o)if("command"===this.mode){this.mathlist.removeSuggestion(),this.suggestionIndex=0;const e=this.mathlist.extractCommandStringAroundInsertionPoint(),s=wt.suggest(e+t);a=s.length>1,0===s.length?(this.mathlist.insert(t,{mode:"command"}),/^\\[a-zA-Z\\*]+$/.test(e+t)&&this.mathlist.decorateCommandStringAroundInsertionPoint(!0),Ze.hidePopover(this)):(this.mathlist.insert(t,{mode:"command"}),s[0].match!==e+t&&this.mathlist.insertSuggestion(s[0].match,-s[0].match.length+e.length+1),i=s[0].match)}else if("math"===this.mode){const i={"^":"moveToSuperscript",_:"moveToSubscript"," ":"moveAfterParent"}[t];if(i){if("moveToSuperscript"===i){if(this._superscriptDepth()>=this.config.scriptDepth[1])return void this._announce("plonk")}else if("moveToSubscript"===i&&this._subscriptDepth()>=this.config.scriptDepth[0])return void this._announce("plonk");this.$perform(i)}else this.config.smartSuperscript&&"superscript"===this.mathlist.relation()&&/[0-9]/.test(t)&&0===this.mathlist.siblings().filter(t=>"first"!==t.type).length?(this.mathlist.insert(t,{mode:"math",style:e}),this.mathlist.moveAfterParent_()):this.mathlist.insert(t,{mode:"math",style:e,smartFence:this.config.smartFence})}else"text"===this.mode&&this.mathlist.insert(t,{mode:"text",style:e})}"command"!==this.mode&&this.undoManager.snapshotAndCoalesce(this.config),this._requestUpdate(),this.scrollIntoView(),Ze.showPopoverWithLatex(this,i,a)}_hash(){let t=0;const e=this.mathlist.root.toLatex(!1);for(let i=0;ibs(this)&&this._render()))}_render(t){t=t||{},this.dirty=!1,window.mathlive||(window.mathlive={}),this.mathlist.anchor()||(this.mathlist.path=[{relation:"body",offset:0}]),this.mathlist.forEach(t=>{t.caret="",t.isSelected=!1});const e=this.$hasFocus();this.mathlist.isCollapsed()?this.mathlist.anchor().caret=e?this.mode:"":this.mathlist.forEachSelected(t=>{t.isSelected=!0});const i=Yt.decompose({mathstyle:"displaystyle",generateID:{seed:this._hash(),groupNumbers:t.forHighlighting},macros:this.config.macros},this.mathlist.root),s=$.makeSpan(i,"ML__base");s.attributes={translate:"no","aria-hidden":"true"};const a=$.makeSpan("","ML__strut");a.setStyle("height",s.height,"em");const o=[a];if(0!==s.depth){const t=$.makeSpan("","ML__strut--bottom");t.setStyle("height",s.height+s.depth,"em"),t.setStyle("vertical-align",-s.depth,"em"),o.push(t)}o.push(s);const n=$.makeSpan(o,"ML__mathlive");this.field.innerHTML=n.toMarkup(0,this.config.horizontalSpacingScale),this.field.classList.toggle("ML__focused",e),this.accessibleNode.innerHTML="";const r=this._getSelectionBounds();if(r){const t=document.createElement("div");t.classList.add("ML__selection"),t.style.position="absolute",t.style.left=r.left+"px",t.style.top=r.top+"px",t.style.width=Math.ceil(r.right-r.left)+"px",t.style.height=Math.ceil(r.bottom-r.top-1)+"px",this.field.insertBefore(t,this.field.childNodes[0])}}_onPaste(){return this.pasteInProgress=!0,!0}_onCut(){return setTimeout(function(){this.$clearSelection(),this._requestUpdate()}.bind(this),0),!0}_onCopy(t){this.mathlist.isCollapsed()?(t.clipboardData.setData("text/plain","$$"+this.$text("latex-expanded")+"$$"),t.clipboardData.setData("application/json",this.$text("json")),t.clipboardData.setData("application/xml",this.$text("mathML"))):(t.clipboardData.setData("text/plain","$$"+this.$selectedText("latex-expanded")+"$$"),t.clipboardData.setData("application/json",this.$selectedText("json")),t.clipboardData.setData("application/xml",this.$selectedText("mathML"))),t.preventDefault()}formatMathlist(t,e){let i="";if("latex"===(e=e||"latex")||"latex-expanded"===e)i=t.toLatex("latex-expanded"===e);else if("mathML"===e)i=t.toMathML(this.config);else if("spoken"===e)i=Yt.toSpeakableText(t,this.config);else if("spoken-text"===e){const e=this.config.textToSpeechMarkup;this.config.textToSpeechMarkup="",i=Yt.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=e}else if("spoken-ssml"===e||"spoken-ssml-withHighlighting"===e){const s=this.config.textToSpeechMarkup,a=this.config.generateID;this.config.textToSpeechMarkup="ssml","spoken-ssml-withHighlighting"===e&&(this.config.generateID=!0),i=Yt.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=s,this.config.generateID=a}else if("json"===e){const e=Yt.toAST(t,this.config);i=JSON.stringify(e)}else"ASCIIMath"===e&&(i=function t(e,i){if(!e)return"";if(Array.isArray(e)){let i="";if(0===e.length)return"";if("first"===e[0].type&&e.shift(),"text"===e[0].mode){let s=0;for(i='"';e[s]&&"text"===e[s].mode;)i+=e[s].body,s++;i+='"'+t(e.slice(s))}else{let s=0;for(;e[s]&&"math"===e[s].mode;)i+=t(e[s]),s++;i+=t(e.slice(s))}return i.trim()}if("text"===e.mode)return'"'+e.body+'"';let s="";const a=e.latex?e.latex.trim():null;let o;switch(e.type){case"group":case"root":s=t(e.body);break;case"array":break;case"genfrac":(e.leftDelim||e.rightDelim)&&(s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:"),e.hasBarLine?(s+="(",s+=t(e.numer),s+=")/(",s+=t(e.denom),s+=")"):(s+="("+t(e.numer)+"),",s+="("+t(e.denom)+")"),(e.leftDelim||e.rightDelim)&&(s+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:");break;case"surd":e.index?s+="root("+t(e.index)+")("+t(e.body)+")":s+="sqrt("+t(e.body)+")";break;case"leftright":s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:",s+=t(e.body),s+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:";break;case"sizeddelim":case"delim":case"accent":break;case"line":case"overlap":case"overunder":break;case"mord":s=li[a]||a||("string"==typeof e.body?e.body:""),"\\"===s[0]&&(s+=""),o=a?a.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/):null,o?s=String.fromCharCode(parseInt("0x"+o[1])):s.length>0&&"\\"===s.charAt(0)&&(s="string"==typeof e.body?e.body.charAt(0):e.latex);break;case"mbin":case"mrel":case"textord":case"minner":s=a&&li[a]?li[a]:a&&ci[a]?ci[a]:e.body;break;case"mopen":case"mclose":s+=e.body;break;case"mpunct":s=ci[a]||a;break;case"mop":""!==e.body&&(s="",s+="\\operatorname"===a?t(e.body):e.body||a,s+=" ");break;case"mathstyle":case"box":case"spacing":case"enclose":break;case"space":s=" "}if(e.subscript){s+="_";const i=t(e.subscript);i.length>1&&!/^(-)?\d+(\.\d*)?$/.test(i)?s+="("+i+")":s+=i}if(e.superscript){s+="^";const i=t(e.superscript);i.length>1&&!/^(-)?\d+(\.\d*)?$/.test(i)?s+="("+i+")":s+=i}return s}(t,this.config));return i}$text(t){return this.formatMathlist(this.mathlist.root,t)}$selectedText(t){const e=this.mathlist.getSelectedAtoms();if(!e)return"";const i=Yt.makeRoot("math",e);return this.formatMathlist(i,t)}$selectionIsCollapsed(){return this.mathlist.isCollapsed()}$selectionDepth(){return this.mathlist.path.length}_superscriptDepth(){let t=0,e=0,i=this.mathlist.ancestor(e),s=!1;for(;i;)(i.superscript||i.subscript)&&(t+=1),i.superscript?s=!0:i.subscript&&(s=!1),e+=1,i=this.mathlist.ancestor(e);return s?t:0}_subscriptDepth(){let t=0,e=0,i=this.mathlist.ancestor(e),s=!1;for(;i;)(i.superscript||i.subscript)&&(t+=1),i.superscript?s=!1:i.subscript&&(s=!0),e+=1,i=this.mathlist.ancestor(e);return s?t:0}$selectionAtStart(){return 0===this.mathlist.startOffset()}$selectionAtEnd(){return this.mathlist.endOffset()>=this.mathlist.siblings().length-1}groupIsSelected(){return 0===this.mathlist.startOffset()&&this.mathlist.endOffset()>=this.mathlist.siblings().length-1}$latex(t,e){return t?(t!==this.mathlist.root.toLatex()&&(e=e||{},this.mathlist.insert(t,Object.assign({},this.config,{insertionMode:"replaceAll",selectionMode:"after",format:"latex",mode:"math",suppressChangeNotifications:e.suppressChangeNotifications})),this.undoManager.snapshot(this.config),this._requestUpdate()),t):this.mathlist.root.toLatex()}$el(){return this.element}undo(){return this.complete_(),this.undoManager.undo(this.config),!0}redo(){return this.complete_(),this.undoManager.redo(this.config),!0}scrollIntoView(){this.dirty&&this._render();let t=this._getCaretPosition();const e=this.field.getBoundingClientRect();if(!t){const i=this._getSelectionBounds();i&&(t={x:i.right+e.left-this.field.scrollLeft,y:i.top+e.top-this.field.scrollTop})}if(t){const i=t.x-window.scrollX;ie.right&&this.field.scroll({top:0,left:i-e.right+this.field.scrollLeft+20,behavior:"smooth"})}}scrollToStart(){this.field.scroll(0,0)}scrollToEnd(){const t=this.field.getBoundingClientRect();this.field.scroll(t.left-window.scrollX,0)}enterCommandMode_(){this.switchMode_("command")}copyToClipboard_(){return this.$focus(),this.mathlist.isCollapsed()&&this.$select(),document.execCommand("copy"),!1}cutToClipboard_(){return this.$focus(),document.execCommand("cut"),!0}pasteFromClipboard_(){return this.$focus(),document.execCommand("paste"),!0}$insert(t,e){if("string"==typeof t&&t.length>0){if((e=e||{}).focus&&this.$focus(),e.feedback&&(this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play())),"\\\\"===t)this.mathlist.addRowAfter_();else if("&"===t)this.mathlist.addColumnAfter_();else{const i=this.style;this.mathlist.insert(t,{mode:this.mode,style:this.mathlist.anchorStyle(),...e}),e.resetStyle&&(this.style=i)}return this.undoManager.snapshot(this.config),this._requestUpdate(),!0}return!1}switchMode_(t,e,i){this._resetKeystrokeBuffer(),this.smartModeSuppressed=/text|math/.test(this.mode)&&/text|math/.test(t),e&&this.$insert(e,{format:"latex",mode:{math:"text",text:"math"}[t]}),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),"command"===t?(this.mathlist.removeSuggestion(),Ze.hidePopover(this),this.suggestionIndex=0,this.virtualKeyboardVisible&&this.switchKeyboardLayer_("lower-command"),this.mathlist.insert("",{mode:"math"})):this.mode=t,i&&this.$insert(i,{format:"latex",mode:t}),"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode),this._requestUpdate()}complete_(t){if(t=t||{},Ze.hidePopover(this),t.discard)return this.mathlist.spliceCommandStringAroundInsertionPoint(null),this.switchMode_("math"),!0;const e=this.mathlist.extractCommandStringAroundInsertionPoint(!t.acceptSuggestion);if(e){if("\\("===e||"\\)"===e)this.mathlist.spliceCommandStringAroundInsertionPoint([]),this.mathlist.insert(e.slice(1),{mode:this.mode});else{const t="math";if(wt.commandAllowed(t,e)){const i=le.parseTokens(n(e),t,null,this.config.macros);this.mathlist.spliceCommandStringAroundInsertionPoint(i)}else{const i=le.parseTokens(n(e),t,null,this.config.macros);i?this.mathlist.spliceCommandStringAroundInsertionPoint(i):this.mathlist.decorateCommandStringAroundInsertionPoint(!0)}}return this.undoManager.snapshot(this.config),this._announce("replacement"),!0}return!1}_updateSuggestion(){this.mathlist.positionInsertionPointAfterCommitedCommand(),this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=wt.suggest(t);if(0===e.length)Ze.hidePopover(this),this.mathlist.decorateCommandStringAroundInsertionPoint(!0);else{const i=this.suggestionIndex%e.length,s=t.length-e[i].match.length;0!==s&&this.mathlist.insertSuggestion(e[i].match,s),Ze.showPopoverWithLatex(this,e[i].match,e.length>1)}this._requestUpdate()}nextSuggestion_(){return this.suggestionIndex+=1,this._updateSuggestion(),!1}previousSuggestion_(){if(this.suggestionIndex-=1,this.suggestionIndex<0){this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=wt.suggest(t);this.suggestionIndex=e.length-1}return this._updateSuggestion(),!1}_attachButtonHandlers(t,e){const i=this;let s,a,o,n,r;"object"==typeof e&&(e.default||e.pressed)?(e.default&&t.setAttribute("data-"+this.config.namespace+"command",JSON.stringify(e.default)),e.alt&&t.setAttribute("data-"+this.config.namespace+"command-alt",JSON.stringify(e.alt)),e.altshift&&t.setAttribute("data-"+this.config.namespace+"command-altshift",JSON.stringify(e.altshift)),e.shift&&t.setAttribute("data-"+this.config.namespace+"command-shift",JSON.stringify(e.shift)),e.pressed&&t.setAttribute("data-"+this.config.namespace+"command-pressed",JSON.stringify(e.pressed)),e.pressAndHoldStart&&t.setAttribute("data-"+this.config.namespace+"command-pressAndHoldStart",JSON.stringify(e.pressAndHoldStart)),e.pressAndHoldEnd&&t.setAttribute("data-"+this.config.namespace+"command-pressAndHoldEnd",JSON.stringify(e.pressAndHoldEnd))):t.setAttribute("data-"+this.config.namespace+"command",JSON.stringify(e)),us(t,"mousedown 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a=this.virtualKeyboard.querySelector('div.keyboard-layer.is-visible div.rows ul li[data-alt-keys="'+t+'"]').getBoundingClientRect();if(a){a.top-i.clientHeight<0&&(i.style.width="auto",e.length<=6?i.style.height="56px":e.length<=12?i.style.height="108px":i.style.height="205px");const t=(a.top-i.clientHeight+5).toString()+"px",s=Math.max(0,Math.min(window.innerWidth-i.offsetWidth,(a.left+a.right-i.offsetWidth)/2))+"px";i.style.transform="translate("+s+","+t+")",i.classList.add("is-visible")}return!1}hideAlternateKeys_(){const t=document.getElementById("mathlive-alternate-keys-panel");return t&&(t.classList.remove("is-visible"),t.innerHTML="",ys(t)),!1}performAlternateKeys_(t){return this.hideAlternateKeys_(),this.$perform(t)}switchKeyboardLayer_(t){if("off"!==this.config.virtualKeyboardMode){"lower-command"!==t&&"upper-command"!==t&&"symbols-command"!==t&&this.complete_(),this.showVirtualKeyboard_(),this.hideAlternateKeys_(),this.unshiftKeyboardLayer_();const 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d=Wt(t,[s,o,c,i]);if(!this.index)return this.bind(t,Rt([r,d],"sqrt"));const p=t.clone({mathstyle:M.SCRIPTSCRIPT}),m=$t(Jt(p,this.index),e.adjustTo(M.SCRIPTSCRIPT)),u=Math.max(r.height,d.height),f=Math.max(r.depth,d.depth),g=Wt(t,[m],"shift",-.6*(u-f));return this.bind(t,Rt([$t(g,"root"),r,d],"sqrt"))}decomposeAccent(t){const e=t.mathstyle;let s=Jt(t.cramp(),this.body);(this.superscript||this.subscript)&&(s=this.attachSupsub(t,Rt(s),"mord"));let i=0;Array.isArray(this.body)&&1===this.body.length&&this.body[0].isCharacterBox()&&(i=N.skew(s));const a=Math.min(N.height(s),e.metrics.xHeight),o=N.makeSymbol("Main-Regular",this.accent,"math");o.italic=0;const n="⃗"===this.accent?" accent-vec":"";let r=$t($t(o),"accent-body"+n);return r=Wt(t,[s,-a,r]),r.children[1].setLeft(2*i),Rt(r,"accent")}decomposeLine(t){const e=t.mathstyle,s=Jt(t.cramp(),this.body),i=h.defaultRuleThickness/e.sizeMultiplier,a=$t(null,t.mathstyle.adjustTo(M.TEXT)+" "+this.position+"-line");let o;if(a.height=i,a.maxFontSize=1,"overline"===this.position)o=Wt(t,[s,3*i,a,i]);else{const e=$t(s);o=Wt(t,[i,a,3*i,e],"top",N.height(e))}return Rt(o,this.position)}decomposeOverunder(t){const e=Jt(t,this.body),s=t.clone({mathstyle:"scriptstyle"}),i=this.overscript?$t(Jt(s,this.overscript),t.mathstyle.adjustTo(s.mathstyle)):null,a=this.underscript?$t(Jt(s,this.underscript),t.mathstyle.adjustTo(s.mathstyle)):null;return Xt(t,e,0,0,i,a,this.mathtype||"mrel")}decomposeOverlap(t){const e=$t(Jt(t,this.body),"inner");return Rt([e,$t(null,"fix")],"left"===this.align?"llap":"rlap")}decomposeRule(t){const e=t.mathstyle,s=Rt("","rule");let i=this.shift&&!isNaN(this.shift)?this.shift:0;i/=e.sizeMultiplier;const a=this.width/e.sizeMultiplier,o=this.height/e.sizeMultiplier;return s.setStyle("border-right-width",a,"em"),s.setStyle("border-top-width",o,"em"),s.setStyle("margin-top",-(o-i),"em"),s.setStyle("border-color",t.color),s.width=a,s.height=o+i,s.depth=-i,s}decomposeOp(t){const e=t.mathstyle;let s,i=!1;e.size===M.DISPLAY.size&&"string"==typeof this.body&&"\\smallint"!==this.body&&(i=!0);let a=0,o=0;if(this.symbol){const n=i?"Size2-Regular":"Size1-Regular";s=N.makeSymbol(n,this.body,"op-symbol "+(i?"large-op":"small-op")),s.type="mop",a=(s.height-s.depth)/2-e.metrics.axisHeight*e.sizeMultiplier,o=s.italic,this.bind(t,s)}else Array.isArray(this.body)?(s=N.makeOp(Jt(t,this.body)),this.bind(t,s)):s=this.makeSpan(t,this.body);if(this.superscript||this.subscript){const i=this.limits||"auto";return this.alwaysHandleSupSub||"limits"===i||"auto"===i&&e.size===M.DISPLAY.size?this.attachLimits(t,s,a,o):this.attachSupsub(t,s,"mop")}return this.symbol&&s.setTop(a),s}decomposeBox(t){const e=Rt(Jt(t,this.body)),s=$t();s.setStyle("position","absolute");const i="number"==typeof this.padding?this.padding:h.fboxsep;s.setStyle("height",e.height+e.depth+2*i,"em"),0!==i?s.setStyle("width","calc(100% + 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i="";if(this.notation.box&&e.setStyle("border",this.borderStyle),this.notation.actuarial&&(e.setStyle("border-top",this.borderStyle),e.setStyle("border-right",this.borderStyle)),this.notation.madruwb&&(e.setStyle("border-bottom",this.borderStyle),e.setStyle("border-right",this.borderStyle)),this.notation.roundedbox&&(e.setStyle("border-radius",(N.height(e)+N.depth(e))/2,"em"),e.setStyle("border",this.borderStyle)),this.notation.circle&&(e.setStyle("border-radius","50%"),e.setStyle("border",this.borderStyle)),this.notation.top&&e.setStyle("border-top",this.borderStyle),this.notation.left&&e.setStyle("border-left",this.borderStyle),this.notation.right&&e.setStyle("border-right",this.borderStyle),this.notation.bottom&&e.setStyle("border-bottom",this.borderStyle),this.notation.horizontalstrike&&(i+='0?s.setWidth(this.width):s.setStyle("margin-left",this.width,"em");else{const t={qquad:"qquad",quad:"quad",enspace:"enspace",";":"thickspace",":":"mediumspace",",":"thinspace","!":"negativethinspace"}[this.body]||"quad";s=$t("","mspace "+t)}else"mathstyle"===this.type?t.setMathstyle(this.mathstyle):"box"===this.type?s=this.decomposeBox(t):"enclose"===this.type?s=this.decomposeEnclose(t):"command"===this.type||"error"===this.type?(s=this.makeSpan(t,this.body),s.classes="",this.error&&(s.classes+=" ML__error"),this.suggestion&&(s.classes+=" ML__suggestion")):"placeholder"===this.type?s=this.makeSpan(t,"⬚"):"first"===this.type&&(s=this.makeSpan(t,""));if(!s)return s;if(this.caret&&"styling"!==this.type&&"msubsup"!==this.type&&"command"!==this.type&&"placeholder"!==this.type&&"first"!==this.type&&(Array.isArray(s)?s[s.length-1].caret=this.caret:s.caret=this.caret),this.containsCaret&&(Array.isArray(s)?(s[0].classes=(s[0].classes||"")+" ML__contains-caret",s[s.length-1].classes=(s[s.length-1].classes||"")+" ML__contains-caret"):s.classes=(s.classes||"")+" 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t=.8*i.metrics.xHeight-(r-N.depth(a));t>0&&(r+=t,l-=t)}p=Wt(t,[o,l,a,-r],"individualShift"),this.symbol&&p.children[0].setLeft(-N.italic(e))}else o&&!a?(l=Math.max(l,i.metrics.sub1,N.height(o)-.8*i.metrics.xHeight),p=Wt(t,[o],"shift",l),p.children[0].setRight(d),this.isCharacterBox()&&p.children[0].setLeft(-N.italic(e))):!o&&a&&(r=Math.max(r,n,a.depth+.25*i.metrics.xHeight),p=Wt(t,[a],"shift",-r),p.children[0].setRight(d));const m=$t(p,"msubsup");return this.caret&&(m.caret=this.caret),N.makeSpanOfType(s,[e,m])}attachLimits(t,e,s,i){const a=this.superscript?$t(Jt(t.sup(),this.superscript),t.mathstyle.adjustTo(t.mathstyle.sup())):null,o=this.subscript?$t(Jt(t.sub(),this.subscript),t.mathstyle.adjustTo(t.mathstyle.sub())):null;return Xt(t,e,s,i,a,o,"mop")}bind(t,e){return"first"!==this.type&&""!==this.body&&(this.id=function(t){let e;return"boolean"==typeof t.generateID&&t.generateID?e=Date.now().toString(36).slice(-2)+Math.floor(1e5*Math.random()).toString(36):"object"==typeof t.generateID&&(e=t.generateID.overrideID?t.generateID.overrideID:t.generateID.seed.toString(36),t.generateID.seed+=1),e}(t),this.id&&(e.attributes||(e.attributes={}),e.attributes["data-atom-id"]=this.id)),e}makeSpan(t,e){const s="textord"===this.type?"mord":this.type,i=N.makeSpanOfType(s,e),a=this.getStyle();i.applyStyle(a);const o=a&&a.fontSize?a.fontSize:"size5";return o!==t.parentSize?(i.classes+=" sizing reset-"+t.parentSize,i.classes+=" "+o):t.parentSize!==t.size&&(i.classes+=" sizing reset-"+t.parentSize,i.classes+=" "+t.size),i.maxFontSize=Math.max(i.maxFontSize,t.sizeMultiplier||1),"text"===this.mode&&(i.classes+=" ML__text"),t.mathstyle.isTight()&&(i.isTight=!0),"math"!==this.mode&&(i.italic=0),i.setRight(i.italic),"number"==typeof t.opacity&&i.setStyle("opacity",t.opacity),this.bind(t,i),this.caret&&(this.superscript||this.subscript||(i.caret=this.caret,t.mathstyle.isTight()&&(i.isTight=!0))),i}}function Gt(t){const e=$t("","arraycolsep");return e.setWidth(t,"em"),e}function Zt(t,e,s,i){const a=[];for(const o of e){const e=$t(Jt(t,i));e.depth=o.depth,e.height=o.height,a.push(e),a.push(o.pos-s)}return Wt(t,a,"individualShift")}function Xt(t,e,s,i,a,o,n){if(!a&&!o)return e;e=$t(e);let r=0,l=0;a&&(r=Math.max(h.bigOpSpacing1,h.bigOpSpacing3-a.depth)),o&&(l=Math.max(h.bigOpSpacing2,h.bigOpSpacing4-o.height));let c=null;if(o&&a){const n=h.bigOpSpacing5+N.height(o)+N.depth(o)+l+N.depth(e)+s;c=Wt(t,[h.bigOpSpacing5,o,l,e,r,a,h.bigOpSpacing5],"bottom",n),c.children[0].setLeft(-i),c.children[2].setLeft(i)}else if(o&&!a){const a=N.height(e)-s;c=Wt(t,[h.bigOpSpacing5,o,l,e],"top",a),c.children[0].setLeft(-i)}else if(!o&&a){const o=N.depth(e)+s;c=Wt(t,[e,r,a,h.bigOpSpacing5],"bottom",o),c.children[1].setLeft(i)}return N.makeSpanOfType(n,c,"op-limits")}function Jt(t,e){function s(t){return"mord"===t.type&&/[0-9,.]/.test(t.latex)}function i(t){return"text"===t.mode}t instanceof _||(t=new _(t));const a=!t.generateID||!t.generateID.groupNumbers;let o=[];if(Array.isArray(e)){if(0===e.length)return o;if(1===e.length)o=e[0].decompose(t),o&&a&&e[0].isSelected&&o.forEach(t=>t.selected(!0));else{let n="none",r=e[1].type,l=[],c=null,h=!0,d=null;for(let p=0;pt.selected(!0))):(l.length>0&&(o=[...o,...l],l=[]),o=o.concat(n))}n=e[p].getFinalBaseElement().type,r=e[p+1]?e[p+1].getInitialBaseElement().type:"none"}l.length>0&&(o=[...o,...l],l=[])}}else e&&(o=e.decompose(t),o&&a&&e.isSelected&&o.forEach(t=>t.selected(!0)));if(!o||0===o.length)return null;if(t.mathstyle!==t.parentMathstyle){const e=t.mathstyle.sizeMultiplier/t.parentMathstyle.sizeMultiplier;for(const t of o)t.height*=e,t.depth*=e}if(t.size!==t.parentSize){const e=Ut[t.size]/Ut[t.parentSize];for(const t of o)t.height*=e,t.depth*=e}return o}var Yt={MathAtom:jt,decompose:Jt,makeRoot:function(t,e){const s=new jt(t=t||"math","root",e||[]);return 0!==s.body.length&&"first"===s.body[0].type||s.body.unshift(new jt("","first")),s},GREEK_REGEX:Ht};const Qt={m0:"#3f3d99",m1:"#993d71",m2:"#998b3d",m3:"#3d9956",m4:"#3d5a99",m5:"#993d90",m6:"#996d3d",m7:"#43993d",m8:"#3d7999",m9:"#843d99"},te={apricot:"#FBB982",aquamarine:"#00B5BE",bittersweet:"#C04F17",black:"#221E1F",blue:"#2D2F92",bluegreen:"#00B3B8",blueviolet:"#473992",brickred:"#B6321C",brown:"#792500",burntorange:"#F7921D",cadetblue:"#74729A",carnationpink:"#F282B4",cerulean:"#00A2E3",cornflowerblue:"#41B0E4",cyan:"#00AEEF",dandelion:"#FDBC42",darkorchid:"#A4538A",emerald:"#00A99D",forestgreen:"#009B55",fuchsia:"#8C368C",goldenrod:"#FFDF42",gray:"#949698",green:"#00A64F",greenyellow:"#DFE674",junglegreen:"#00A99A",lavender:"#F49EC4",limegreen:"#8DC73E",magenta:"#EC008C",mahogany:"#A9341F",maroon:"#AF3235",melon:"#F89E7B",midnightblue:"#006795",mulberry:"#A93C93",navyblue:"#006EB8",olivegreen:"#3C8031",orange:"#F58137",orangered:"#ED135A",orchid:"#AF72B0",peach:"#F7965A",periwinkle:"#7977B8",pinegreen:"#008B72",plum:"#92268F",processblue:"#00B0F0",purple:"#99479B",rawsienna:"#974006",red:"#ED1B23",redorange:"#F26035",redviolet:"#A1246B",rhodamine:"#EF559F",royalblue:"#0071BC",royalpurple:"#613F99",rubinered:"#ED017D",salmon:"#F69289",seagreen:"#3FBC9D",sepia:"#671800",skyblue:"#46C5DD",springgreen:"#C6DC67",tan:"#DA9D76",tealblue:"#00AEB3",thistle:"#D883B7",turquoise:"#00B4CE",violet:"#58429B",violetred:"#EF58A0",white:"#FFFFFF",wildstrawberry:"#EE2967",yellow:"#FFF200",yellowgreen:"#98CC70",yelloworange:"#FAA21A"};var ee=function(t){const e=t.toLowerCase().split("!");let s,i,a,o=255,n=255,r=255,l=-1;const c=e.length>0&&"-"===e[0].charAt(0);c&&(e[0]=e[0].slice(1));for(let h=0;h=0&&(o=(1-l)*o+l*s,n=(1-l)*n+l*i,r=(1-l)*r+l*a,l=-1),h+1=0&&(o=l*o+(1-l)*s,n=l*n+(1-l)*i,r=l*r+(1-l)*a),c&&(o=255-o,n=255-n,r=255-r),"#"+("00"+Math.round(o).toString(16)).slice(-2)+("00"+Math.round(n).toString(16)).slice(-2)+("00"+Math.round(r).toString(16)).slice(-2)},se=function(t){let e=t.toUpperCase();for(const s in te)if(te[s]===e){e=s;break}for(const s in Qt)if(Qt[s]===e){e=s;break}return e},ie=["#d35d60","#7293cb","#e1974d","#84bb5d","#9066a7","#aD6a58","#f5a4ce","#fff590","#212121","#818787","#d4d5d2","#ffffff"],ae=["#cc2428","#3769b1","#da7e30","#409852","#6b4c9a","#922426","#e7298a","#ffe907","#000000","#525055","#adafaa","#ffffff"];const oe=Yt.MathAtom;class ne{constructor(t,e,s){this.tokens=t,this.index=0,this.args=e,this.macros=s,this.mathList=[],this.style={},this.parseMode="math",this.tabularMode=!1,this.endCount=0}swapMathList(t){const e=this.mathList;return this.mathList=t||[],e}swapParseMode(t){const e=this.parseMode;return this.parseMode=t,e}end(){return this.endCount++,this.index>=this.tokens.length||this.endCount>1e3}get(){return this.endCount=0,this.index=t.length}const a=t.toUpperCase()===i.toUpperCase();return a||(this.index=e),a}scanString(){let t="",e=this.end();for(;!e;){if(this.hasLiteral("]"))e=!0;else if(this.hasToken("literal"))t+=this.get().value;else if(this.skipWhitespace())t+=" ";else if(this.hasToken("command")){const e=this.get();"space"===e.value?t+=" ":t+=e.value}else e=!0;e=e||this.end()}return t}scanColor(){return ee(this.scanString())}scanNumber(t){const e=this.parseLiteral("-");e||this.parseLiteral("+"),this.skipWhitespace(),t=!!t;let 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t=s.start;t"placeholder"===t.type));this.setExtent(0),this.path[this.path.length-1].offset=e.start-1,0!==s.length&&this.leap(1,!1)||this.setSelection(e.start+t.length-1)}else this.siblings().splice(e.start,e.end-e.start),this.setSelection(e.start-1,0);this.contentDidChange()}},ke.prototype.removeCommandString=function(){this.contentWillChange();const t=this.suppressChangeNotifications;this.suppressChangeNotifications=!0,function t(e){if(e)if(Array.isArray(e))for(let s=e.length-1;s>=0;s--)"command"===e[s].type?e.splice(s,1):t(e[s]);else if(t(e.body),t(e.superscript),t(e.subscript),t(e.underscript),t(e.overscript),t(e.numer),t(e.denom),t(e.index),e.array)for(let s=Me(e.array);s>=0;s--)t(Ae(e.array,s))}(this.root.body),this.suppressChangeNotifications=t,this.contentDidChange()},ke.prototype.extractArgBeforeInsertionPoint=function(){const t=this.siblings();if(t.length<=1)return[];const e=[];let s=this.startOffset();if("text"===t[s].mode)for(;s>=1&&"text"===t[s].mode;)e.unshift(t[s]),s--;else for(;s>=1&&/^(mord|surd|msubsup|leftright|mop)$/.test(t[s].type);)e.unshift(t[s]),s--;return e},ke.prototype.setSelection=function(t,e,s){t=t||0,e=e||0;const i=this.path[this.path.length-1].relation;s||(s=i);const a=this.parent();if(!a&&"body"!==s)return!1;const o=s.startsWith("cell");if(!o&&!a[s]||o&&!a.array)return!1;const n=s!==i;this.path[this.path.length-1].relation=s;const r=this.siblings().length;this.path[this.path.length-1].relation=i;const l=this.extent;"end"===e?e=r-t-1:"start"===e&&(e=-t),this.setExtent(e);const c=this.extent!==l;this.setExtent(l),t<0&&(t=r+t),t=Math.max(0,Math.min(t,r-1));const h=this.path[this.path.length-1].offset;return(n||h!==t||c)&&(n&&this.adjustPlaceholder(),this.selectionWillChange(),this.path[this.path.length-1].relation=s,this.path[this.path.length-1].offset=t,this.setExtent(e),this.selectionDidChange()),!0},ke.prototype.next=function(t){t=t||{};const e={body:"numer",numer:"denom",denom:"index",index:"overscript",overscript:"underscript",underscript:"subscript",subscript:"superscript"};if(this.anchorOffset()===this.siblings().length-1){this.adjustPlaceholder();let s=e[this.relation()];const i=this.parent();for(;s&&!i[s];)s=e[s];if(s)return void this.setSelection(0,0,s);if(this.parent().array){const t=Me(this.parent().array);let e=parseInt(this.relation().match(/cell([0-9]*)$/)[1])+1;for(;e=0;){if(Ae(this.parent().array,t)&&this.setSelection(-1,0,"cell"+t))return void this.selectionDidChange();t-=1}}return 1===this.path.length?(this.suppressChangeNotifications||!this.config.onMoveOutOf||this.config.onMoveOutOf.bind(this)(-1))&&(this.path[0].offset=this.root.body.length-1):(this.path.pop(),this.setSelection(this.anchorOffset()-1)),void this.selectionDidChange()}const s=this.anchor();if(!s.captureSelection){let t;if(s.array){t="";const e=Me(s.array);let i=e-1;for(;!t&&i0)for(this.collapseForward()&&t--;t>0;)this.next(),t--;else if(t<0)for(this.collapseBackward()&&t++;0!==t;)this.previous(),t++;this._announce("move",e)}},ke.prototype.up=function(t){const e=(t=t||{extend:!1}).extend||!1;this.collapseBackward();const s=this.relation();if("denom"===s)e?(this.selectionWillChange(),this.path.pop(),this.path[this.path.length-1].offset-=1,this.setExtent(1),this.selectionDidChange()):this.setSelection(this.anchorOffset(),0,"numer"),this._announce("moveUp");else if(this.parent().array){let e=Se(this.parent().array,s);e=_e(this.parent().array,e,-1),e&&Ae(e)?(this.path[this.path.length-1].relation="cell"+we(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveUp")):this.move(-1,t)}else this._announce("line")},ke.prototype.down=function(t){const e=(t=t||{extend:!1}).extend||!1;this.collapseForward();const s=this.relation();if("numer"===s)e?(this.selectionWillChange(),this.path.pop(),this.path[this.path.length-1].offset-=1,this.setExtent(1),this.selectionDidChange()):this.setSelection(this.anchorOffset(),0,"denom"),this._announce("moveDown");else if(this.parent().array){let e=Se(this.parent().array,s);e=_e(this.parent().array,e,1),e&&Ae(e)?(this.path[this.path.length-1].relation="cell"+we(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveDown")):this.move(1,t)}else this._announce("line")},ke.prototype.extend=function(t){let e=this.path[this.path.length-1].offset,s=0;const i=ve(this);s=this.extent+t;const a=e+s;if(a<0&&0!==s){if(this.path.length>1)return this.selectionWillChange(),this.path.pop(),this.setExtent(-1),this.selectionDidChange(),void this._announce("move",i);e=this.path[this.path.length-1].offset,s=this.extent}else if(a>=this.siblings().length){if(this.path.length>1)return this.selectionWillChange(),this.path.pop(),this.path[this.path.length-1].offset-=1,this.setExtent(1),this.selectionDidChange(),void this._announce("move",i);this.isCollapsed()&&(e-=1),s-=1}this.setSelection(e,s),this._announce("move",i)},ke.prototype.skip=function(t,e){const s=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const i=ve(this),a=this.siblings(),o=this.focusOffset();let n=o+t;if(s&&(n=Math.min(Math.max(0,n),a.length-1)),n<0||n>=a.length)this.move(t,e);else{if(a[n]&&"text"===a[n].mode){if(n=this.wordBoundaryOffset(n,t),n<0&&!s)return void this.setSelection(0);if(n>a.length)return this.setSelection(a.length-1),void this.move(t,e)}else{const e=a[n]?a[n].type:"";if("mopen"===e&&t>0||"mclose"===e&&t<0){let s="mopen"===e?1:-1;for(n+=t>0?1:-1;n>=0&&n0&&(n-=1)}else{for(;a[n]&&"math"===a[n].mode&&a[n].type===e;)n+=t;n-=t>0?1:0}}if(s){const t=this.anchorOffset();this.setSelection(t,n-t)}else this.setSelection(n);this._announce("move",i)}},ke.prototype.jump=function(t,e){const s=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const i=this.siblings();let a=this.focusOffset();t>0&&(a=Math.min(a+1,i.length-1));const o=t<0?0:i.length-1;s?this.extend(o-a):this.move(o-a)},ke.prototype.jumpToMathFieldBoundary=function(t,e){const s=(e=e||{extend:!1}).extend||!1;t=(t=t||1)<0?-1:1;const i=ve(this),a=[{relation:"body",offset:this.path[0].offset}];let o;s?t<0?a[0].offset>0&&(o=-a[0].offset):a[0].offset"placeholder"===e.type||t.length>1&&1===this.siblings().length,t);if(0===o.length){if(this.setPath(i,a),e)if(this.config.onTabOutOf)this.config.onTabOutOf(this.target,t>0?"forward":"backward");else if(document.activeElement){const e='a[href]:not([disabled]),\n button:not([disabled]),\n textarea:not([disabled]),\n input[type=text]:not([disabled]),\n select:not([disabled]),\n [contentEditable="true"],\n [tabindex]:not([disabled]):not([tabindex="-1"])',s=Array.prototype.filter.call(document.querySelectorAll(e),t=>(t.offsetWidth>0||t.offsetHeight>0)&&!t.contains(document.activeElement)||t===document.activeElement);let i=s.indexOf(document.activeElement)+t;i<0&&(i=s.length-1),i>=s.length&&(i=0),s[i].focus()}return this.suppressChangeNotifications=s,!1}return this.selectionWillChange(),this.setPath(o[0]),"placeholder"===this.anchor().type&&this.setExtent(-1),this._announce("move",i),this.selectionDidChange(),this.suppressChangeNotifications=s,!0},ke.prototype.anchorMode=function(){const t=this.isCollapsed()?this.anchor():this.sibling(1);let e;if(t){if("commandliteral"===t.type||"command"===t.type)return"command";e=t.mode}let s=1,i=this.ancestor(s);for(;!e&&i;)i&&(e=i.mode),s+=1,i=this.ancestor(s);return e},ke.prototype.anchorStyle=function(){const t=this.isCollapsed()?this.anchor():this.sibling(1);let e;if(t&&"first"!==t.type){if("commandliteral"===t.type||"command"===t.type)return{};e={color:t.color,backgroundColor:t.backgroundColor,fontFamily:t.fontFamily,fontShape:t.fontShape,fontSeries:t.fontSeries,fontSize:t.fontSize}}let s=1,i=this.ancestor(s);for(;!e&&i;)i&&(e={color:i.color,backgroundColor:i.backgroundColor,fontFamily:i.fontFamily,fontShape:i.fontShape,fontSeries:i.fontSeries,fontSize:i.fontSize}),s+=1,i=this.ancestor(s);return e},ke.prototype.simplifyParen=function(t){if(t&&this.config.removeExtraneousParentheses){for(let e=0;t[e];e++)if("leftright"===t[e].type&&"("===t[e].leftDelim&&Array.isArray(t[e].body)){let s=0,i=0,a=0;for(let o=0;t[e].body[o];o++)"genfrac"===t[e].body[o].type&&(s++,i=o),"first"!==t[e].body[o].type&&a++;0===a&&1===s&&(t[e]=t[e].body[i])}t.forEach(t=>{if("genfrac"===t.type&&(this.simplifyParen(t.numer),this.simplifyParen(t.denom),t.numer=Fe(t.numer),t.denom=Fe(t.denom)),t.superscript&&(this.simplifyParen(t.superscript),t.superscript=Fe(t.superscript)),t.subscript&&(this.simplifyParen(t.subscript),t.subscript=Fe(t.subscript)),t.underscript&&(this.simplifyParen(t.underscript),t.underscript=Fe(t.underscript)),t.overscript&&(this.simplifyParen(t.overscript),t.overscript=Fe(t.overscript)),t.index&&(this.simplifyParen(t.index),t.index=Fe(t.index)),"surd"===t.type?(this.simplifyParen(t.body),t.body=Fe(t.body)):t.body&&Array.isArray(t.body)&&this.simplifyParen(t.body),t.array)for(let e=Me(t.array);e>=0;e--)this.simplifyParen(Ae(t.array,e))})}},ke.prototype.insert=function(t,e){if((e=e||{}).smartFence&&this._insertSmartFence(t,e.style))return;const s=this.suppressChangeNotifications;e.suppressChangeNotifications&&(this.suppressChangeNotifications=!0),this.contentWillChange();const i=this.suppressChangeNotifications;this.suppressChangeNotifications=!0,e.insertionMode||(e.insertionMode="replaceSelection"),e.selectionMode||(e.selectionMode="placeholder"),e.format||(e.format="auto"),e.macros=e.macros||this.config.macros;const a=e.mode||this.anchorMode();let o;const r=[this.getSelectedAtoms()];void 0!==e.placeholder&&(r["?"]=e.placeholder),"replaceSelection"!==e.insertionMode||this.isCollapsed()?"replaceAll"===e.insertionMode?(this.root.body.splice(1),this.path=[{relation:"body",offset:0}],this.extent=0):"insertBefore"===e.insertionMode?this.collapseBackward():"insertAfter"===e.insertionMode&&this.collapseForward():this.delete_();const l=this.siblings(),c=this.startOffset();if(c+10&&l[c]&&"placeholder"===l[c].type&&this.delete_(-1),"math"===a&&"ASCIIMath"===e.format)t=De(t,{...this.config,format:"ASCIIMath"}),o=le.parseTokens(n(t),"math",null,e.macros,!1),this.simplifyParen(o);else if("text"!==a&&"auto"===e.format)if("command"===a){o=[];for(const e of t)wt.COMMAND_MODE_CHARACTERS.test(e)&&o.push(new Yt.MathAtom("command","command",e))}else""===t?o=[new Yt.MathAtom("command","command","\\")]:(t=De(t,this.config),r[0]?t=t.replace(/(^|[^\\])#@/g,"$1#0"):/(^|[^\\])#@/.test(t)?(t=t.replace(/(^|[^\\])#@/g,"$1#0"),r[0]=this.extractArgBeforeInsertionPoint(),this._deleteAtoms(-r[0].length),Array.isArray(r[0])&&0===r[0].length&&(r[0]=void 0)):t=t.replace(/(^|[^\\])#@/g,"$1#?"),o=le.parseTokens(n(t),a,r,e.macros,e.smartFence),this.simplifyParen(o));else"latex"===e.format?o=le.parseTokens(n(t),a,r,e.macros,e.smartFence):"text"!==a&&"text"!==e.format||(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=t.replace(/\\/g,"\\textbackslash ")).replace(/#/g,"\\#")).replace(/\$/g,"\\$")).replace(/%/g,"\\%")).replace(/&/g,"\\&")).replace(/_/g,"\\_")).replace(/{/g,"\\textbraceleft ")).replace(/}/g,"\\textbraceright ")).replace(/\^/g,"\\textasciicircum ")).replace(/~/g,"\\textasciitilde ")).replace(/£/g,"\\textsterling "),o=le.parseTokens(n(t),"text",r,e.macros,!1));!function t(e,s){e&&s&&(Array.isArray(e)?e.forEach(e=>t(e,s)):"object"==typeof e&&(e.color||e.backgroundColor||e.fontFamily||e.fontShape||e.fontSeries||e.fontSize||(e.applyStyle(s),t(e.body,s),t(e.numer,s),t(e.denom,s),t(e.index,s),t(e.overscript,s),t(e.underscript,s),t(e.subscript,s),t(e.superscript,s))))}(o,e.style);const h=this.parent();if(this.config.removeExtraneousParentheses&&h&&"leftright"===h.type&&"("===h.leftDelim&&function(t){return 0===t.length||1===t.length&&"first"===t[0].type}(h.body)&&o&&1===o.length&&"genfrac"===o[0].type?(this.path.pop(),this.siblings()[this.anchorOffset()]=o[0]):Array.prototype.splice.apply(this.siblings(),[this.anchorOffset()+1,0].concat(o)),this.insertFirstAtom(),this.suppressChangeNotifications=i,"placeholder"===e.selectionMode){let t=[];for(const e of o)t=t.concat(e.filter(t=>"placeholder"===t.type));0!==t.length&&this.leap(1,!1)?this._announce("move"):this.setSelection(this.anchorOffset()+o.length)}else"before"===e.selectionMode||("after"===e.selectionMode?this.setSelection(this.anchorOffset()+o.length):"item"===e.selectionMode&&this.setSelection(this.anchorOffset(),o.length));this.contentDidChange(),this.suppressChangeNotifications=s},ke.prototype._insertSmartFence=function(t,e){const s=this.parent();if("leftright"===s.type&&"|"!==s.leftDelim&&/\||\\vert|\\Vert|\\mvert|\\mid/.test(t))return this.insert("\\,\\middle"+t+"\\, ",{mode:"math",format:"latex",style:e}),!0;"{"!==t&&"\\{"!==t||(t="\\lbrace"),"}"!==t&&"\\}"!==t||(t="\\rbrace"),"["!==t&&"\\["!==t||(t="\\lbrack"),"]"!==t&&"\\]"!==t||(t="\\rbrack");const i=wt.RIGHT_DELIM[t];if(i&&("leftright"!==s.type||"|"!==s.leftDelim)){let s="";const a=this.isCollapsed()||"placeholder"===this.anchor().type;s=this.sibling(0).isFunction?"\\mleft"+t+"\\mright":"\\left"+t+"\\right",s+=a?"?":i;let o=[];return a&&(o=this.siblings().splice(this.anchorOffset()+1,this.siblings().length)),this.insert(s,{mode:"math",format:"latex",style:e}),a&&(this.sibling(0).body=o,this.move(-1)),!0}let a;if(Object.keys(wt.RIGHT_DELIM).forEach(e=>{t===wt.RIGHT_DELIM[e]&&(a=e)}),a){if(s&&"leftright"===s.type&&this.endOffset()===this.siblings().length-1)return this.contentWillChange(),s.rightDelim=t,this.move(1),this.contentDidChange(),!0;const i=this.siblings();let a;for(a=this.endOffset();a>=0&&("leftright"!==i[a].type||"?"!==i[a].rightDelim);a--);if(a>=0)return this.contentWillChange(),i[a].rightDelim=t,i[a].body=i[a].body.concat(i.slice(a+1,this.endOffset()+1)),i.splice(a+1,this.endOffset()-a),this.setSelection(a),this.contentDidChange(),!0;if(s&&"leftright"===s.type&&"?"===s.rightDelim){this.contentWillChange(),s.rightDelim=t;const e=i.slice(this.endOffset()+1);return i.splice(this.endOffset()+1),this.path.pop(),Array.prototype.splice.apply(this.siblings(),[this.endOffset()+1,0].concat(e)),this.contentDidChange(),!0}const o=this.ancestor(2);return o&&"leftright"===o.type&&"?"===o.rightDelim&&this.endOffset()===i.length-1?(this.move(1),this._insertSmartFence(t,e)):(this.insert(t,{mode:"math",format:"latex",style:e}),!0)}return!1},ke.prototype.positionInsertionPointAfterCommitedCommand=function(){const t=this.siblings(),e=this.commandOffsets();let s=e.start;for(;s=0;e--)t[e].suggestion&&t.splice(e,1)},ke.prototype.insertSuggestion=function(t,e){this.removeSuggestion();const s=[],i=t.substr(e);for(const a of i){const t=new Yt.MathAtom("command","command",a);t.suggestion=!0,s.push(t)}Array.prototype.splice.apply(this.siblings(),[this.anchorOffset()+1,0].concat(s))},ke.prototype._deleteAtoms=function(t){t>0?this.siblings().splice(this.anchorOffset()+1,t):(this.siblings().splice(this.anchorOffset()+t+1,-t),this.setSelection(this.anchorOffset()+t))},ke.prototype.delete=function(t){if(0===(t=t||0))this.delete_(0);else if(t>0)for(;t>0;)this.delete_(1),t--;else for(;t<0;)this.delete_(-1),t++},ke.prototype.delete_=function(t){this.contentWillChange(),this.selectionWillChange();const e=this.suppressChangeNotifications;if(this.suppressChangeNotifications=!0,t=(t=t||0)<0?-1:t>0?1:t,this.removeSuggestion(),this.parent().array&&t<0&&0===this.startOffset()){const t=this.parent().array;if(function(t){const e={col:0,row:0};for(;e.row0){let t=e.length;"first"===e[0].type&&(t-=1),t>0&&(s+=1)}i.row+=1}return s}(t,e.col)){!function(t,e){let s=0;for(;s"placeholder"!==t.type&&"first"!==t.type);this.parent()[t]=null,this.path.pop(),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),0].concat(e)),this.setSelection(this.anchorOffset()-1),this._announce("deleted: "+t)}else if("denom"===t){const t=this.parent().numer.filter(t=>"placeholder"!==t.type&&"first"!==t.type),e=this.parent().denom.filter(t=>"placeholder"!==t.type&&"first"!==t.type);this.path.pop(),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),1].concat(e)),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),0].concat(t)),this.setSelection(this.anchorOffset()+t.length-1),this._announce("deleted: denominator")}else if("body"===t){const t=this.siblings().filter(t=>"placeholder"!==t.type);this.path.length>1&&(t.shift(),this.path.pop(),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),1].concat(t)),this.setSelection(this.anchorOffset()-1),this._announce("deleted: root"))}else this.move(-1),this.delete(-1)}else if(t>0)if(e!==s.length-1)/^(group|array|genfrac|surd|leftright|overlap|overunder|box|mathstyle|sizing)$/.test(this.sibling(1).type)?this.move(1):(this._announce("delete",null,s.slice(e+1,e+2)),s.splice(e+1,1));else if("numer"===this.relation()){const t=this.parent().numer.filter(t=>"placeholder"!==t.type&&"first"!==t.type),e=this.parent().denom.filter(t=>"placeholder"!==t.type&&"first"!==t.type);this.path.pop(),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),1].concat(e)),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),0].concat(t)),this.setSelection(this.anchorOffset()+t.length-1),this._announce("deleted: numerator")}else this.move(1),this.delete(-1)}else{const 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"}}return i},Yt.toSpeakableText=function(t,e){const s=e?JSON.parse(JSON.stringify(e)):{textToSpeechMarkup:"",textToSpeechRules:"mathlive"};if(s.speechMode="math",window.sre&&"sre"===s.textToSpeechRules){s.generateID=!0;const e=Yt.toMathML(t,s);return e?(s.textToSpeechMarkup&&(s.textToSpeechRulesOptions=s.textToSpeechRulesOptions||{},s.textToSpeechRulesOptions.markup=s.textToSpeechMarkup,"ssml"===s.textToSpeechRulesOptions.markup&&(s.textToSpeechRulesOptions.markup="ssml_step"),s.textToSpeechRulesOptions.rate=s.speechEngineRate),s.textToSpeechRulesOptions&&window.sre.System.getInstance().setupEngine(s.textToSpeechRulesOptions),window.sre.System.getInstance().toSpeech(e)):""}let i=Yt.toSpeakableFragment(t,s);if("ssml"===s.textToSpeechMarkup){let t="";s.speechEngineRate&&(t=''),i=''+t+""+i+"
"+(t?"":"")+""}else i="mac"===s.textToSpeechMarkup&&"mac"===function(t){let e="other";return navigator&&navigator.platform&&navigator.userAgent&&(/^(mac)/i.test(navigator.platform)?e="mac":/^(win)/i.test(navigator.platform)?e="win":/(android)/i.test(navigator.userAgent)?e="android":/(iphone)/i.test(navigator.userAgent)||/(ipod)/i.test(navigator.userAgent)||/(ipad)/i.test(navigator.userAgent)?e="ios":/\bCrOS\b/i.test(navigator.userAgent)&&(e="chromeos")),e===t?t:"!"+t}("mac")?i.replace(//g,"").replace(//g,"[[emph+]]").replace(/<\/emphasis>/g,"").replace(//g,"[[slc $1]]").replace(/]*>/g,"").replace(/<\/say-as>/g,""):i.replace(/<[^>]*>/g,"").replace(/\s{2,}/g," ");return i};class xi{constructor(t,e){this.$setConfig(e||{}),this.element=t,t.mathfield=this,this.originalContent=t.innerHTML;let s=this.element.textContent;s&&(s=s.trim());let i="";this.config.substituteTextArea?"string"==typeof this.config.substituteTextArea?i+=this.config.substituteTextArea:i+="":/android|ipad|ipod|iphone/i.test(navigator.userAgent)?i+="\n \n \n ":i+='',i+='',this.config.virtualKeyboardMode||(this.config.virtualKeyboardMode=window.matchMedia&&window.matchMedia("(any-pointer: coarse)").matches?"onfocus":"off"),"manual"===this.config.virtualKeyboardMode?(i+=`"):i+="",i+="",i+='\n \n \n \n
\n ',this.element.innerHTML=i;let a=0;"function"==typeof this.config.substituteTextArea?this.textarea=this.config.substituteTextArea():this.textarea=this.element.children[a++].firstElementChild,this.field=this.element.children[a].children[0],this.field.addEventListener("wheel",t=>{t.preventDefault(),t.stopPropagation();let e=void 0===t.deltaX?t.detail:-t.deltaX;isFinite(e)||(e=t.wheelDelta/10),this.field.scroll({top:0,left:this.field.scrollLeft-5*e})},{passive:!1}),this.virtualKeyboardToggleDOMNode=this.element.children[a++].children[1],this._attachButtonHandlers(this.virtualKeyboardToggleDOMNode,{default:"toggleVirtualKeyboard",alt:"toggleVirtualKeyboardAlt",shift:"toggleVirtualKeyboardShift"}),this.ariaLiveText=this.element.children[a].children[0],this.accessibleNode=this.element.children[a++].children[1],this.popover=gi("mathlive-popover-panel","ML__popover"),this.keystrokeCaption=gi("mathlive-keystroke-caption-panel","ML__keystroke-caption"),this.keystrokeCaptionVisible=!1,this.virtualKeyboardVisible=!1,this.keystrokeBuffer="",this.keystrokeBufferStates=[],this.keystrokeBufferResetTimer=null,this.suggestionIndex=0,this.mode=e.defaultMode||"math",this.smartModeSuppressed=!1,this.style={},this.blurred=!0,ui(this.element,"focus",this),ui(this.element,"blur",this),ui(this.textarea,"cut",this),ui(this.textarea,"copy",this),ui(this.textarea,"paste",this),Ne.delegateKeyboardEvents(this.textarea,{container:this.element,allowDeadKey:()=>"text"===this.mode,typedText:this._onTypedText.bind(this),paste:this._onPaste.bind(this),keystroke:this._onKeystroke.bind(this),focus:this._onFocus.bind(this),blur:this._onBlur.bind(this)}),window.PointerEvent?ui(this.field,"pointerdown",this):ui(this.field,"touchstart:active mousedown",this),ui(window,"resize",this);const o={...e};o.onSelectionDidChange=xi.prototype._onSelectionDidChange.bind(this),o.onContentDidChange=xi.prototype._onContentDidChange.bind(this),o.onAnnounce=this.config.onAnnounce,o.macros=this.config.macros,o.removeExtraneousParentheses=this.config.removeExtraneousParentheses,this.mathlist=new Pe.EditableMathlist(o,this),this.undoManager=new class{constructor(t){this.mathlist=t,this.maximumDepth=1e3,this.record=!1,this.canCoalesce=!1,this.reset()}reset(){this.stack=[],this.index=-1}startRecording(){this.record=!0}canUndo(){return this.index>0}canRedo(){return this.index!==this.stack.length-1}undo(t){this.canUndo()&&(t&&"function"==typeof t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"undo"),this.restore(this.stack[this.index-1],t),this.index-=1,t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"undo"),this.canCoalesce=!1)}redo(t){this.canRedo()&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"redo"),this.index+=1,this.restore(this.stack[this.index],t),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"redo"),this.canCoalesce=!1)}pop(){this.canUndo()&&(this.index-=1,this.stack.pop())}snapshot(t){this.record&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"snapshot"),this.stack.splice(this.index+1,this.stack.length-this.index-1),this.stack.push({latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}),this.index++,this.stack.length>this.maximumDepth&&this.stack.shift(),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"snapshot"),this.canCoalesce=!1)}snapshotAndCoalesce(t){this.canCoalesce&&this.pop(),this.snapshot(t),this.canCoalesce=!0}save(){return{latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}}restore(t,e){const s=this.mathlist.suppressChangeNotifications;void 0!==e.suppressChangeNotifications&&(this.mathlist.suppressChangeNotifications=e.suppressChangeNotifications),this.mathlist.insert(t?t.latex:"",{mode:"math",insertionMode:"replaceAll",selectionMode:"after",format:"latex",...e}),this.mathlist.setPath(t?t.selection:[{relation:"body",offset:0}]),this.mathlist.suppressChangeNotifications=s}}(this.mathlist),s.length>0&&this.$latex(s),this.undoManager.startRecording(),this.undoManager.snapshot(this.config)}handleEvent(t){switch(t.type){case"focus":this._onFocus(t);break;case"blur":this._onBlur(t);break;case"touchstart":case"mousedown":case"pointerdown":this._onPointerDown(t);break;case"resize":this._resizeTimer&&window.cancelAnimationFrame(this._resizeTimer),this._resizeTimer=window.requestAnimationFrame(()=>bi(this)&&this._onResize());break;case"cut":this._onCut(t);break;case"copy":this._onCopy(t);break;case"paste":this._onPaste(t)}}$revertToOriginalContent(){this.element.innerHTML=this.originalContent,this.element.mathfield=null,delete this.accessibleNode,delete this.ariaLiveText,delete this.field,fi(this.textarea,"cut",this),fi(this.textarea,"copy",this),fi(this.textarea,"paste",this),this.textarea.remove(),delete this.textarea,this.virtualKeyboardToggleDOMNode.remove(),delete this.virtualKeyboardToggleDOMNode,yi(this.popover),yi(this.keystrokeCaption),yi(this.virtualKeyboard),yi(document.getElementById("mathlive-alternate-keys-panel")),fi(this.element,"pointerdown",this),fi(this.element,"touchstart:active mousedown",this),fi(this.element,"focus",this),fi(this.element,"blur",this),fi(window,"resize",this),delete this.element}_resetKeystrokeBuffer(){this.keystrokeBuffer="",this.keystrokeBufferStates=[],clearTimeout(this.keystrokeBufferResetTimer)}_getCaretPosition(){const t=function t(e){if(e.classList.contains("ML__caret")||e.classList.contains("ML__text-caret")||e.classList.contains("ML__command-caret"))return e;let s;return Array.from(e.children).forEach((function(e){s=s||t(e)})),s}(this.field);if(t){const e=t.getBoundingClientRect();return{x:e.right,y:e.bottom,height:e.height}}return null}_getSelectionBounds(){const t=this.field.querySelectorAll(".ML__selected");if(t&&t.length>0){const e={top:1/0,bottom:-1/0,left:1/0,right:-1/0};t.forEach(t=>{const s=t.getBoundingClientRect();s.lefte.right&&(e.right=s.right),s.bottom>e.bottom&&(e.bottom=s.bottom),s.top=t.left&&s<=t.right}return o&&e.children&&Array.from(e.children).forEach((function(e){const o=t(e,s,i);o.element&&o.distance<=a.distance&&(a=o)})),a}(this.field,t,e).element,o=a?a.getAttribute("data-atom-id"):null;if(o){const e=this.mathlist.filter((function(t,e){return e.captureSelection?e.filter(t=>t.id===o).length>0:e.id===o}));if(e&&e.length>0)if(i=de.pathFromString(e[0]).path,0===s.bias){const e=a.getBoundingClientRect();tt.parentNode.removeChild(t)),t.preventDefault(),t.stopPropagation()}let r=!1,l=!1;const c=setInterval(()=>{r?e.field.scroll({top:0,left:e.field.scrollLeft-16}):l&&e.field.scroll({top:0,left:e.field.scrollLeft+16})},32);function h(t){const i=t.touches?t.touches[0].clientX:t.clientX,o=t.touches?t.touches[0].clientY:t.clientY,n="touch"===t.pointerType?20:5;if(Date.now()c.right,r=i=u.left&&d<=u.right&&p>=u.top&&p<=u.bottom){this.$hasFocus()||(o=!0,this.textarea.focus&&this.textarea.focus()),this._resetKeystrokeBuffer(),this.smartModeSuppressed=!1;const r=this.field.querySelector(".ML__mathlive").getBoundingClientRect();if(s=d>r.right?[{relation:"body",offset:this.mathlist.root.body.length-1}]:this._pathFromPoint(d,p,{bias:0}),s){let r=document.createElement("div");r.className="ML__scroller",this.element.appendChild(r),r.style.left=u.left-200+"px",r=document.createElement("div"),r.className="ML__scroller",this.element.appendChild(r),r.style.left=u.right+"px",t.shiftKey?(this.mathlist.setRange(this.mathlist.path,s),s=de.clone(this.mathlist.path),s[s.length-1].offset-=1):this.mathlist.setPath(s,0),o=!0,this.style={},3===t.detail||vi>2?(n(t),3!==t.detail&&3!==vi||this.mathlist.selectAll_()):i||(i=!0,window.PointerEvent?(ui(e.field,"pointermove",h),ui(e.field,"pointerend pointercancel pointerup",n),e.field.setPointerCapture(t.pointerId)):(ui(window,"blur",n),t.touches?(ui(t.target,"touchmove",h),ui(t.target,"touchend",n)):(ui(window,"mousemove",h),ui(window,"mouseup",n))),2!==t.detail&&2!==vi||(a=!0,this.mathlist.selectGroup_()))}}else ki=null;o&&this._requestUpdate(),t.preventDefault()}_onSelectionDidChange(){this.mathlist.commitCommandStringBeforeInsertionPoint();let t="";this.mathlist.forEachSelected(e=>{t+=e.toLatex()}),t?(this.textarea.value=t,this.$hasFocus()&&this.textarea.select&&this.textarea.select()):(this.textarea.value="",this.textarea.setAttribute("aria-label",""));{const t=this.mode;this.mode=this.mathlist.anchorMode()||this.config.defaultMode,this.mode!==t&&"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode),"command"===t&&"command"!==this.mode&&(Ze.hidePopover(this),this.mathlist.removeCommandString())}Ze.updatePopoverPosition(this,{deferred:!0}),"function"==typeof this.config.onSelectionDidChange&&this.config.onSelectionDidChange(this)}_onContentDidChange(){this.undoManager.canRedo()?this.element.classList.add("can-redo"):this.element.classList.remove("can-redo"),this.undoManager.canUndo()?this.element.classList.add("can-undo"):this.element.classList.remove("can-undo"),"function"==typeof this.config.onContentDidChange&&this.config.onContentDidChange(this)}_nextAtomSpeechText(t){function e(t,e){return"body"===e.relation?{enclose:"cross out",leftright:"fence",surd:"square root",root:"math field"}[t.type]:{numer:"numerator",denom:"denominator",index:"index",body:"parent",subscript:"subscript",superscript:"superscript"}[e.relation]}const s=t?t.path:[],i=this.mathlist.path,a=i[i.length-1];let o="";for(;s.length>i.length;)o+="out of "+e(t.parent(),s[s.length-1])+"; ",s.pop();if(!this.mathlist.isCollapsed())return wi(this,"",this.mathlist.getSelectedAtoms());const n=e(this.mathlist.parent(),a);0===a.offset&&(o+=(n?"start of "+n:"unknown")+": ");const r=this.mathlist.sibling(Math.max(1,this.mathlist.extent));return r?o+=wi(this,"",r):0!==a.offset&&(o+=n?"end of "+n:"unknown"),o}_announce(t,e,s){"function"==typeof this.config.onAnnounce&&this.config.onAnnounce(this,t,e,s)}_onFocus(){this.config.readOnly||this.blurred&&(this.blurred=!1,this.textarea.focus&&this.textarea.focus(),"onfocus"===this.config.virtualKeyboardMode&&this.showVirtualKeyboard_(),Ze.updatePopoverPosition(this),this.config.onFocus&&this.config.onFocus(this),this._requestUpdate())}_onBlur(){this.blurred||(this.blurred=!0,this.ariaLiveText.textContent="","onfocus"===this.config.virtualKeyboardMode&&this.hideVirtualKeyboard_(),this.complete_({discard:!0}),this._requestUpdate(),this.config.onBlur&&this.config.onBlur(this))}_onResize(){this.element.classList.remove("ML__isNarrowWidth","ML__isWideWidth","ML__isExtendedWidth"),window.innerWidth>=1024?this.element.classList.add("ML__isExtendedWidth"):window.innerWidth>=768?this.element.classList.add("ML__isWideWidth"):this.element.classList.add("ML__isNarrowWidth"),Ze.updatePopoverPosition(this)}toggleKeystrokeCaption_(){this.keystrokeCaptionVisible=!this.keystrokeCaptionVisible,this.keystrokeCaption.innerHTML="",this.keystrokeCaptionVisible||(this.keystrokeCaption.style.visibility="hidden")}_showKeystroke(t){const e=this.keystrokeCaption;if(e&&this.keystrokeCaptionVisible){const s=this.element.getBoundingClientRect();e.style.left=s.left+"px",e.style.top=s.top-64+"px",e.innerHTML=""+(xe.stringify(t)||t)+""+e.innerHTML,e.style.visibility="visible",setTimeout((function(){e.childNodes.length>0&&e.removeChild(e.childNodes[e.childNodes.length-1]),0===e.childNodes.length&&(e.style.visibility="hidden")}),3e3)}}$perform(t){if(!t)return!1;let e,s=!1,i=[],a=!1;if(Array.isArray(t)?(e=t[0],i=t.slice(1)):e=t,e=e.replace(/-\w/g,t=>t[1].toUpperCase()),e+="_","function"==typeof this.mathlist[e]){if(/^(delete|transpose|add)/.test(e)&&this._resetKeystrokeBuffer(),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&(this.undoManager.pop(),this.undoManager.snapshot(this.config)),this.mathlist[e](...i),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&this.undoManager.snapshot(this.config),/^(delete)/.test(e)&&"command"===this.mode){const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=wt.suggest(t);0===e.length?Ze.hidePopover(this):Ze.showPopoverWithLatex(this,e[0].match,e.length>1)}a=!0,s=!0}else"function"==typeof this[e]&&(a=this[e](...i),s=!0);return this.mathlist.isCollapsed()&&!/^(transpose|paste|complete|((moveToNextChar|moveToPreviousChar|extend).*))_$/.test(e)||(this._resetKeystrokeBuffer(),this.style={}),a&&this._requestUpdate(),s}performWithFeedback_(t){return this.$focus(),this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),"moveToNextPlaceholder"===(t=t.replace(/-\w/g,t=>t[1].toUpperCase()))||"moveToPreviousPlaceholder"===t||"complete"===t?this.returnKeypressSound?(this.returnKeypressSound.load(),this.returnKeypressSound.play().catch(t=>{})):this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):"deletePreviousChar"!==t&&"deleteNextChar"!==t&&"deletePreviousWord"!==t&&"deleteNextWord"!==t&&"deleteToGroupStart"!==t&&"deleteToGroupEnd"!==t&&"deleteToMathFieldStart"!==t&&"deleteToMathFieldEnd"!==t||!this.deleteKeypressSound?this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):(this.deleteKeypressSound.load(),this.deleteKeypressSound.play().catch(t=>{})),this.$perform(t)}convertLastAtomsToText_(t,e){"function"==typeof t&&(e=t,t=1/0),void 0===t&&(t=1/0);let s=0,i=!1;for(this.mathlist.contentWillChange();!i;){const a=this.mathlist.sibling(s);i=0===t||!a||"math"!==a.mode||!(/mord|textord|mpunct/.test(a.type)||"mop"===a.type&&/[a-zA-Z]+/.test(a.body))||a.superscript||a.subscript||e&&!e(a),i||(a.applyStyle({mode:"text"}),a.latex=a.body),s-=1,t-=1}this.mathlist.contentDidChange()}convertLastAtomsToMath_(t,e){"function"==typeof t&&(e=t,t=1/0),void 0===t&&(t=1/0),this.mathlist.contentWillChange();let s=0,i=!1;for(;!i;){const a=this.mathlist.sibling(s);i=0===t||!a||"text"!==a.mode||" "===a.body||e&&!e(a),i||a.applyStyle({mode:"math",type:"mord"}),s-=1,t-=1}this.removeIsolatedSpace_(),this.mathlist.contentDidChange()}removeIsolatedSpace_(){let t=0;for(;this.mathlist.sibling(t)&&"math"===this.mathlist.sibling(t).mode;)t-=1;if(this.mathlist.sibling(t)&&"text"===this.mathlist.sibling(t).mode&&" "===this.mathlist.sibling(t).body&&(!this.mathlist.sibling(t-1)||"math"===this.mathlist.sibling(t-1).mode)){this.mathlist.contentWillChange(),this.mathlist.siblings().splice(t-1,1),this.mathlist.contentDidChange();const e=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0,this.mathlist.setSelection(this.mathlist.anchorOffset()-1),this.mathlist.suppressChangeNotifications=e}}getTextBeforeAnchor_(){let t="",e=0,s=!1;for(;!s;){const i=this.mathlist.sibling(e);s=!(i&&("text"===i.mode&&!i.type||"math"===i.mode&&/mord|textord|mpunct/.test(i.type))),s||(t=i.body+t),e-=1}return t}smartMode_(t,e){if(this.smartModeSuppressed)return!1;if(this.mathlist.endOffset()1)return!1;if(!this.mathlist.isCollapsed())return!("text"!==this.mode||!/[/_^]/.test(s));const i=this.getTextBeforeAnchor_()+s;if("text"===this.mode){if("Esc"===t||/[/\\]/.test(s))return!0;if(/[\^_]/.test(s))return/(^|\s)[a-zA-Z][^_]$/.test(i)&&this.convertLastAtomsToMath_(1),!0;const e={")":"(","}":"{","]":"["}[s];if(e&&this.mathlist.parent()&&"leftright"===this.mathlist.parent().type&&this.mathlist.parent().leftDelim===e)return!0;if(/(^|[^a-zA-Z])(a|I)[ ]$/.test(i))return!1;if(/[$€£₤₺¥¤฿¢₡₧₨₹₩₱]/u.test(s))return!0;if(/(^|[^a-zA-Z'’])[a-zA-Z][ ]$/.test(i))return this.convertLastAtomsToMath_(1),!1;if(/[^0-9]\.[^0-9\s]$/.test(i)){this.convertLastAtomsToMath_(1);const t=this.mathlist.sibling(0);return t.body="⋅",t.autoFontFamily="cmr",t.latex="\\cdot",!0}if(/(^|\s)[a-zA-Z][^a-zA-Z]$/.test(i))return this.convertLastAtomsToMath_(1),!0;if(/\.[0-9]$/.test(i))return this.convertLastAtomsToMath_(1),!0;if(/[(][0-9+\-.]$/.test(i))return this.convertLastAtomsToMath_(1),!0;if(/[(][a-z][,;]$/.test(i))return this.convertLastAtomsToMath_(2),!0;if(/[0-9+\-=><*|]$/.test(s))return this.removeIsolatedSpace_(),!0}else{if("Spacebar"===t)return this.convertLastAtomsToText_(t=>/[a-z][:,;.]$/.test(t.body)),!0;if(/[a-zA-Z]{3,}$/.test(i)&&!/(dxd|abc|xyz|uvw)$/.test(i))return this.convertLastAtomsToText_(t=>/[a-zA-Z:,;.]/.test(t.body)),!0;if(/(^|\W)(if|If)$/i.test(i))return this.convertLastAtomsToText_(1),!0;if(/(\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5){3,}$/u.test(i)&&!/(αβγ)$/.test(i))return this.convertLastAtomsToText_(t=>/(:|,|;|.|\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5)/u.test(t.body)),!0;if(/\?|\./.test(s))return!0}return!1}_onKeystroke(t,e){if(this._showKeystroke(t),clearTimeout(this.keystrokeBufferResetTimer),this.config.onKeystroke&&!this.config.onKeystroke(this,t,e))return e&&e.preventDefault&&(e.preventDefault(),e.stopPropagation()),!1;let s,i,a,o=!1;if("command"!==this.mode&&(!e||!e.ctrlKey&&!e.metaKey)){const t=Ne.eventToChar(e);if("Backspace"!==t)if(!t||t.length>1)this._resetKeystrokeBuffer();else{const e=this.keystrokeBuffer+t;let a=0;for(;!s&&a{this._resetKeystrokeBuffer()},this.config.inlineShortcutTimeout))}}if(this.config.smartMode){const i=this.mode;s?this.mode="math":this.smartMode_(t,e)&&(this.mode={math:"text",text:"math"}[this.mode],a=""),this.mode!==i&&"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode)}if(s||a||(a=xe.selectorForKeystroke(this.mode,t)),!s&&!a)return!0;if(this.config.readOnly&&"insert"===a[0])return!0;this.mathlist.decorateCommandStringAroundInsertionPoint(!1);const r=this.mathlist.parent();if("moveAfterParent"===a&&r&&"leftright"===r.type&&this.mathlist.endOffset()===this.mathlist.siblings().length-1&&this.config.smartFence&&this.mathlist._insertSmartFence(".")&&(a="",this._requestUpdate()),"math"===this.mode&&"Spacebar"===t&&!s){const t=this.mathlist.sibling(1),e=this.mathlist.sibling(-1);(t&&"text"===t.mode||e&&"text"===e.mode)&&this.mathlist.insert(" ",{mode:"text"})}if((a&&!this.$perform(a)||s)&&s){if(!/^(\\{|\\}|\\[|\\]|\\@|\\#|\\$|\\%|\\^|\\_|\\backslash)$/.test(s)){const t={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(Ne.eventToChar(e),{suppressChangeNotifications:!0,mode:this.mode,style:t});const s=this.mode;this.undoManager.snapshotAndCoalesce(this.config),this.undoManager.restore(this.keystrokeBufferStates[i],{...this.config,suppressChangeNotifications:!0}),this.mode=s}this.mathlist.contentWillChange();const t=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0;const a={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(s,{format:"latex",mode:this.mode,style:a,smartFence:!0}),this.removeIsolatedSpace_(),s.endsWith(" ")&&(this.mode="text",this.mathlist.insert(" ",{mode:"text",style:a})),this.mathlist.suppressChangeNotifications=t,this.mathlist.contentDidChange(),this.undoManager.snapshot(this.config),this._requestUpdate(),this._announce("replacement"),o&&this._resetKeystrokeBuffer()}return this.scrollIntoView(),e&&e.preventDefault&&(e.preventDefault(),e.stopPropagation()),!1}_onTypedText(t,e){if(this.config.readOnly)return void this._announce("plonk");if((e=e||{}).focus&&this.$focus(),e.feedback&&(this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{}))),e.commandMode&&"command"!==this.mode&&this.switchMode_("command"),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),e.simulateKeystroke){const e=t.charAt(0),s=Ne.charToEvent(e);if(!this.$keystroke(Ne.keyboardEventToString(s),s))return}let s="",a=!1;if(this.pasteInProgress)this.pasteInProgress=!1,this.mathlist.insert(t,{smartFence:this.config.smartFence,mode:"math"});else{const e={...this.mathlist.anchorStyle(),...this.style},o=i(t);for(const t of o)if("command"===this.mode){this.mathlist.removeSuggestion(),this.suggestionIndex=0;const e=this.mathlist.extractCommandStringAroundInsertionPoint(),i=wt.suggest(e+t);a=i.length>1,0===i.length?(this.mathlist.insert(t,{mode:"command"}),/^\\[a-zA-Z\\*]+$/.test(e+t)&&this.mathlist.decorateCommandStringAroundInsertionPoint(!0),Ze.hidePopover(this)):(this.mathlist.insert(t,{mode:"command"}),i[0].match!==e+t&&this.mathlist.insertSuggestion(i[0].match,-i[0].match.length+e.length+1),s=i[0].match)}else if("math"===this.mode){const s={"^":"moveToSuperscript",_:"moveToSubscript"," ":"moveAfterParent"}[t];if(s){if("moveToSuperscript"===s){if(this._superscriptDepth()>=this.config.scriptDepth[1])return void this._announce("plonk")}else if("moveToSubscript"===s&&this._subscriptDepth()>=this.config.scriptDepth[0])return void this._announce("plonk");this.$perform(s)}else this.config.smartSuperscript&&"superscript"===this.mathlist.relation()&&/[0-9]/.test(t)&&0===this.mathlist.siblings().filter(t=>"first"!==t.type).length?(this.mathlist.insert(t,{mode:"math",style:e}),this.mathlist.moveAfterParent_()):this.mathlist.insert(t,{mode:"math",style:e,smartFence:this.config.smartFence})}else"text"===this.mode&&this.mathlist.insert(t,{mode:"text",style:e})}"command"!==this.mode&&this.undoManager.snapshotAndCoalesce(this.config),this._requestUpdate(),this.scrollIntoView(),Ze.showPopoverWithLatex(this,s,a)}_hash(){let t=0;const e=this.mathlist.root.toLatex(!1);for(let s=0;sbi(this)&&this._render()))}_render(t){t=t||{},this.dirty=!1,window.mathlive||(window.mathlive={}),this.mathlist.anchor()||(this.mathlist.path=[{relation:"body",offset:0}]),this.mathlist.forEach(t=>{t.caret="",t.isSelected=!1,t.containsCaret=!1});const e=this.$hasFocus();if(this.mathlist.isCollapsed()?this.mathlist.anchor().caret=e&&!this.config.readOnly?this.mode:"":this.mathlist.forEachSelected(t=>{t.isSelected=!0}),e&&!this.config.readOnly){let t=this.mathlist.ancestor(1),e=1,s=!1;for(;t&&!s;)"surd"!==t.type&&"leftright"!==t.type||(t.containsCaret=!0,s=!0),e+=1,t=this.mathlist.ancestor(e)}const s=Yt.decompose({mathstyle:"displaystyle",generateID:{seed:this._hash(),groupNumbers:t.forHighlighting},macros:this.config.macros},this.mathlist.root),i=N.makeSpan(s,"ML__base");i.attributes={translate:"no","aria-hidden":"true"};const a=N.makeSpan("","ML__strut");a.setStyle("height",i.height,"em");const o=[a];if(0!==i.depth){const t=N.makeSpan("","ML__strut--bottom");t.setStyle("height",i.height+i.depth,"em"),t.setStyle("vertical-align",-i.depth,"em"),o.push(t)}o.push(i);const n=N.makeSpan(o,"ML__mathlive");this.field.innerHTML=n.toMarkup(0,this.config.horizontalSpacingScale),this.field.classList.toggle("ML__focused",e&&!this.config.readOnly),this.accessibleNode.innerHTML="";const r=this._getSelectionBounds();if(r){const t=document.createElement("div");t.classList.add("ML__selection"),t.style.position="absolute",t.style.left=r.left+"px",t.style.top=r.top+"px",t.style.width=Math.ceil(r.right-r.left)+"px",t.style.height=Math.ceil(r.bottom-r.top-1)+"px",this.field.insertBefore(t,this.field.childNodes[0])}}_onPaste(){return this.pasteInProgress=!0,!0}_onCut(){return setTimeout(function(){this.$clearSelection(),this._requestUpdate()}.bind(this),0),!0}_onCopy(t){this.mathlist.isCollapsed()?(t.clipboardData.setData("text/plain","$$"+this.$text("latex-expanded")+"$$"),t.clipboardData.setData("application/json",this.$text("json")),t.clipboardData.setData("application/xml",this.$text("mathML"))):(t.clipboardData.setData("text/plain","$$"+this.$selectedText("latex-expanded")+"$$"),t.clipboardData.setData("application/json",this.$selectedText("json")),t.clipboardData.setData("application/xml",this.$selectedText("mathML"))),t.preventDefault()}formatMathlist(t,e){let s="";if("latex"===(e=e||"latex")||"latex-expanded"===e)s=t.toLatex("latex-expanded"===e);else if("mathML"===e)s=t.toMathML(this.config);else if("spoken"===e)s=Yt.toSpeakableText(t,this.config);else if("spoken-text"===e){const e=this.config.textToSpeechMarkup;this.config.textToSpeechMarkup="",s=Yt.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=e}else if("spoken-ssml"===e||"spoken-ssml-withHighlighting"===e){const i=this.config.textToSpeechMarkup,a=this.config.generateID;this.config.textToSpeechMarkup="ssml","spoken-ssml-withHighlighting"===e&&(this.config.generateID=!0),s=Yt.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=i,this.config.generateID=a}else if("json"===e){const e=Yt.toAST(t,this.config);s=JSON.stringify(e)}else"ASCIIMath"===e&&(s=function t(e,s){if(!e)return"";if(Array.isArray(e)){let s="";if(0===e.length)return"";if("first"===e[0].type&&e.shift(),"text"===e[0].mode){let i=0;for(s='"';e[i]&&"text"===e[i].mode;)s+=e[i].body,i++;s+='"'+t(e.slice(i))}else{let i=0;for(;e[i]&&"math"===e[i].mode;)s+=t(e[i]),i++;s+=t(e.slice(i))}return s.trim()}if("text"===e.mode)return'"'+e.body+'"';let i="";const a=e.latex?e.latex.trim():null;let o;switch(e.type){case"group":case"root":i=t(e.body);break;case"array":break;case"genfrac":(e.leftDelim||e.rightDelim)&&(i+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:"),e.hasBarLine?(i+="(",i+=t(e.numer),i+=")/(",i+=t(e.denom),i+=")"):(i+="("+t(e.numer)+"),",i+="("+t(e.denom)+")"),(e.leftDelim||e.rightDelim)&&(i+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:");break;case"surd":e.index?i+="root("+t(e.index)+")("+t(e.body)+")":i+="sqrt("+t(e.body)+")";break;case"leftright":i+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:",i+=t(e.body),i+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:";break;case"sizeddelim":case"delim":case"accent":break;case"line":case"overlap":case"overunder":break;case"mord":i=ls[a]||a||("string"==typeof e.body?e.body:""),"\\"===i[0]&&(i+=""),o=a?a.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/):null,o?i=String.fromCharCode(parseInt("0x"+o[1])):i.length>0&&"\\"===i.charAt(0)&&(i="string"==typeof e.body?e.body.charAt(0):e.latex);break;case"mbin":case"mrel":case"textord":case"minner":i=a&&ls[a]?ls[a]:a&&cs[a]?cs[a]:e.body;break;case"mopen":case"mclose":i+=e.body;break;case"mpunct":i=cs[a]||a;break;case"mop":""!==e.body&&(i="",i+="\\operatorname"===a?t(e.body):e.body||a,i+=" ");break;case"mathstyle":case"box":case"spacing":case"enclose":break;case"space":i=" "}if(e.subscript){i+="_";const s=t(e.subscript);s.length>1&&!/^(-)?\d+(\.\d*)?$/.test(s)?i+="("+s+")":i+=s}if(e.superscript){i+="^";const s=t(e.superscript);s.length>1&&!/^(-)?\d+(\.\d*)?$/.test(s)?i+="("+s+")":i+=s}return i}(t,this.config));return s}$text(t){return this.formatMathlist(this.mathlist.root,t)}$selectedText(t){const e=this.mathlist.getSelectedAtoms();if(!e)return"";const s=Yt.makeRoot("math",e);return this.formatMathlist(s,t)}$selectionIsCollapsed(){return this.mathlist.isCollapsed()}$selectionDepth(){return this.mathlist.path.length}_superscriptDepth(){let t=0,e=0,s=this.mathlist.ancestor(e),i=!1;for(;s;)(s.superscript||s.subscript)&&(t+=1),s.superscript?i=!0:s.subscript&&(i=!1),e+=1,s=this.mathlist.ancestor(e);return i?t:0}_subscriptDepth(){let t=0,e=0,s=this.mathlist.ancestor(e),i=!1;for(;s;)(s.superscript||s.subscript)&&(t+=1),s.superscript?i=!1:s.subscript&&(i=!0),e+=1,s=this.mathlist.ancestor(e);return i?t:0}$selectionAtStart(){return 0===this.mathlist.startOffset()}$selectionAtEnd(){return this.mathlist.endOffset()>=this.mathlist.siblings().length-1}groupIsSelected(){return 0===this.mathlist.startOffset()&&this.mathlist.endOffset()>=this.mathlist.siblings().length-1}$latex(t,e){return t?(t!==this.mathlist.root.toLatex()&&(e=e||{},this.mathlist.insert(t,Object.assign({},this.config,{insertionMode:"replaceAll",selectionMode:"after",format:"latex",mode:"math",suppressChangeNotifications:e.suppressChangeNotifications})),this.undoManager.snapshot(this.config),this._requestUpdate()),t):this.mathlist.root.toLatex()}$el(){return this.element}undo(){return this.complete_(),this.undoManager.undo(this.config),!0}redo(){return this.complete_(),this.undoManager.redo(this.config),!0}scrollIntoView(){this.dirty&&this._render();let t=this._getCaretPosition();const e=this.field.getBoundingClientRect();if(!t){const s=this._getSelectionBounds();s&&(t={x:s.right+e.left-this.field.scrollLeft,y:s.top+e.top-this.field.scrollTop})}if(t){const s=t.x-window.scrollX;se.right&&this.field.scroll({top:0,left:s-e.right+this.field.scrollLeft+20,behavior:"smooth"})}}scrollToStart(){this.field.scroll(0,0)}scrollToEnd(){const t=this.field.getBoundingClientRect();this.field.scroll(t.left-window.scrollX,0)}enterCommandMode_(){this.switchMode_("command")}copyToClipboard_(){return this.$focus(),this.mathlist.isCollapsed()&&this.$select(),document.execCommand("copy"),!1}cutToClipboard_(){return this.$focus(),document.execCommand("cut"),!0}pasteFromClipboard_(){return this.$focus(),document.execCommand("paste"),!0}$insert(t,e){if("string"==typeof t&&t.length>0){if((e=e||{}).focus&&this.$focus(),e.feedback&&(this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play())),"\\\\"===t)this.mathlist.addRowAfter_();else if("&"===t)this.mathlist.addColumnAfter_();else{const s=this.style;this.mathlist.insert(t,{mode:this.mode,style:this.mathlist.anchorStyle(),...e}),e.resetStyle&&(this.style=s)}return this.undoManager.snapshot(this.config),this._requestUpdate(),!0}return!1}switchMode_(t,e,s){this._resetKeystrokeBuffer(),this.smartModeSuppressed=/text|math/.test(this.mode)&&/text|math/.test(t),e&&this.$insert(e,{format:"latex",mode:{math:"text",text:"math"}[t]}),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),"command"===t?(this.mathlist.removeSuggestion(),Ze.hidePopover(this),this.suggestionIndex=0,this.virtualKeyboardVisible&&this.switchKeyboardLayer_("lower-command"),this.mathlist.insert("",{mode:"math"})):this.mode=t,s&&this.$insert(s,{format:"latex",mode:t}),"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode),this._requestUpdate()}complete_(t){if(t=t||{},Ze.hidePopover(this),t.discard)return this.mathlist.spliceCommandStringAroundInsertionPoint(null),this.switchMode_("math"),!0;const e=this.mathlist.extractCommandStringAroundInsertionPoint(!t.acceptSuggestion);if(e){if("\\("===e||"\\)"===e)this.mathlist.spliceCommandStringAroundInsertionPoint([]),this.mathlist.insert(e.slice(1),{mode:this.mode});else{const t="math";if(wt.commandAllowed(t,e)){const s=le.parseTokens(n(e),t,null,this.config.macros);this.mathlist.spliceCommandStringAroundInsertionPoint(s)}else{const s=le.parseTokens(n(e),t,null,this.config.macros);s?this.mathlist.spliceCommandStringAroundInsertionPoint(s):this.mathlist.decorateCommandStringAroundInsertionPoint(!0)}}return this.undoManager.snapshot(this.config),this._announce("replacement"),!0}return!1}_updateSuggestion(){this.mathlist.positionInsertionPointAfterCommitedCommand(),this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=wt.suggest(t);if(0===e.length)Ze.hidePopover(this),this.mathlist.decorateCommandStringAroundInsertionPoint(!0);else{const s=this.suggestionIndex%e.length,i=t.length-e[s].match.length;0!==i&&this.mathlist.insertSuggestion(e[s].match,i),Ze.showPopoverWithLatex(this,e[s].match,e.length>1)}this._requestUpdate()}nextSuggestion_(){return this.suggestionIndex+=1,this._updateSuggestion(),!1}previousSuggestion_(){if(this.suggestionIndex-=1,this.suggestionIndex<0){this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=wt.suggest(t);this.suggestionIndex=e.length-1}return this._updateSuggestion(),!1}_attachButtonHandlers(t,e){const s=this;let i,a,o,n,r;"object"==typeof e&&(e.default||e.pressed)?(e.default&&t.setAttribute("data-"+this.config.namespace+"command",JSON.stringify(e.default)),e.alt&&t.setAttribute("data-"+this.config.namespace+"command-alt",JSON.stringify(e.alt)),e.altshift&&t.setAttribute("data-"+this.config.namespace+"command-altshift",JSON.stringify(e.altshift)),e.shift&&t.setAttribute("data-"+this.config.namespace+"command-shift",JSON.stringify(e.shift)),e.pressed&&t.setAttribute("data-"+this.config.namespace+"command-pressed",JSON.stringify(e.pressed)),e.pressAndHoldStart&&t.setAttribute("data-"+this.config.namespace+"command-pressAndHoldStart",JSON.stringify(e.pressAndHoldStart)),e.pressAndHoldEnd&&t.setAttribute("data-"+this.config.namespace+"command-pressAndHoldEnd",JSON.stringify(e.pressAndHoldEnd))):t.setAttribute("data-"+this.config.namespace+"command",JSON.stringify(e)),ui(t,"mousedown touchstart:passive",(function(e){if("mousedown"!==e.type||1===e.buttons){e.stopPropagation(),e.preventDefault(),t.classList.add("pressed"),i=Date.now(),"touchstart"===e.type&&(o=e.changedTouches[0].identifier);const n=t.getAttribute("data-"+s.config.namespace+"command-pressed");n&&s.$perform(JSON.parse(n));const l=t.getAttribute("data-"+s.config.namespace+"command-pressAndHoldStart");l&&(a=t,r&&clearTimeout(r),r=window.setTimeout((function(){t.classList.contains("pressed")&&s.$perform(JSON.parse(l))}),300))}})),ui(t,"mouseleave touchcancel",(function(){t.classList.remove("pressed")})),ui(t,"touchmove:passive",(function(t){t.preventDefault();for(let e=0;e=7?s.style.width="286px":4===e.length||2===e.length?s.style.width="146px":1===e.length?s.style.width="86px":s.style.width="146px",s.style.height="auto";let i="";for(const o of e)i+="";i="",s.innerHTML=i,rs.makeKeycap(this,s.getElementsByTagName("li"),"performAlternateKeys");const a=this.virtualKeyboard.querySelector('div.keyboard-layer.is-visible div.rows ul li[data-alt-keys="'+t+'"]').getBoundingClientRect();if(a){a.top-s.clientHeight<0&&(s.style.width="auto",e.length<=6?s.style.height="56px":e.length<=12?s.style.height="108px":s.style.height="205px");const t=(a.top-s.clientHeight+5).toString()+"px",i=Math.max(0,Math.min(window.innerWidth-s.offsetWidth,(a.left+a.right-s.offsetWidth)/2))+"px";s.style.transform="translate("+i+","+t+")",s.classList.add("is-visible")}return!1}hideAlternateKeys_(){const t=document.getElementById("mathlive-alternate-keys-panel");return t&&(t.classList.remove("is-visible"),t.innerHTML="",yi(t)),!1}performAlternateKeys_(t){return this.hideAlternateKeys_(),this.$perform(t)}switchKeyboardLayer_(t){if("off"!==this.config.virtualKeyboardMode){"lower-command"!==t&&"upper-command"!==t&&"symbols-command"!==t&&this.complete_(),this.showVirtualKeyboard_(),this.hideAlternateKeys_(),this.unshiftKeyboardLayer_();const e=this.virtualKeyboard.getElementsByClassName("keyboard-layer");let s=!1;for(let i=0;i=1){s=[];for(let t=1;t<=i;t++)s.push(e[t])}break}case"right":{const e=t.mathlist.siblings(),i=t.mathlist.endOffset()+1;if(i<=e.length-1){s=[];for(let t=i;t<=e.length-1;t++)s.push(e[t])}break}case"start":case"end":break;case"group":s=t.mathlist.siblings();break;case"parent":{const e=t.mathlist.parent();e&&"root"!==e.type&&(s=t.mathlist.parent());break}}return s}(this,t);if(null===s)return this.config.handleSpeak(function(t){let e="";switch(t){case"all":break;case"selection":e="no selection";break;case"left":e="at start";break;case"right":e="at end";break;case"group":break;case"parent":e="no parent"}return e}(t)),!1;const i={...this.config};(e.withHighlighting||"amazon"===i.speechEngine)&&(i.textToSpeechMarkup=window.sre&&"sre"===i.textToSpeechRules?"ssml_step":"ssml",e.withHighlighting&&(i.generateID=!0));const a=Yt.toSpeakableText(s,i);return e.withHighlighting?(window.mathlive.readAloudMathField=this,this._render({forHighlighting:!0}),this.config.handleReadAloud&&this.config.handleReadAloud(this.field,a,this.config)):this.config.handleSpeak&&this.config.handleSpeak(a,i),!1}}let ki,vi=0;function wi(t,e,s){const i=Object.assign({},t.config);return i.textToSpeechMarkup="",i.textToSpeechRulesOptions=i.textToSpeechRulesOptions||{},i.textToSpeechRulesOptions.markup="none",e+Yt.toSpeakableText(s,i)}function Si(t,e,s,i){let a="";"plonk"===e?(t.plonkSound&&(t.plonkSound.load(),t.plonkSound.play().catch(t=>{})),t._resetKeystrokeBuffer()):"delete"===e?a=wi(t,"deleted: ",i):"focus"===e||/move/.test(e)?a=(t.mathlist.isCollapsed()?"":"selected: ")+t._nextAtomSpeechText(s):"replacement"===e?a=wi(t,"",t.mathlist.sibling(0)):"line"===e?(a=wi(t,"",t.mathlist.root),t.accessibleNode.innerHTML='",t.textarea.setAttribute("aria-label","after: "+a)):a=i?wi(t,e+" ",i):e;const o=/\u00a0/.test(t.ariaLiveText.textContent)?" ":" ";t.ariaLiveText.textContent=a+o}xi.prototype.undo_=xi.prototype.undo,xi.prototype.redo_=xi.prototype.redo,xi.prototype.scrollIntoView_=xi.prototype.scrollIntoView,xi.prototype.scrollToStart_=xi.prototype.scrollToStart,xi.prototype.scrollToEnd_=xi.prototype.scrollToEnd,xi.prototype.insert_=xi.prototype.$insert;var Ai={isValidMathfield:bi,MathField:xi};function Mi(t,e,s){let i=s,a=0;const o=t.length;for(;i0&&a.push({type:"text",data:n.slice(0,c)}),l=!1);let h=!1;for(;!h;){if(l){if(r=n.indexOf(e,c),-1===r){h=!0;break}c!==r&&a.push({type:"text",data:n.slice(c,r)}),c=r}else{if(r=Mi(s,n,c+e.length),-1===r){h=!0;break}a.push({type:"math",data:n.slice(c+e.length,r),rawData:n.slice(c,r+s.length),mathstyle:i}),c=r+s.length}l=!l}c"+e.renderToMathML(t,e)+""}catch(i){s.textContent=t}return s.className="sr-only",s}(t,s)),/\bspeakable-text\b/i.test(s.renderAccessibleContent)&&s.renderToSpeakableText){const i=document.createElement("span");i.innerHTML=s.renderToSpeakableText(t,s),i.className="sr-only",e.appendChild(i)}return e.appendChild(a),e}return a}function Li(t,e){let s=null;if(e.TeX.processEnvironments&&/^\s*\\begin/.test(t))s=document.createDocumentFragment(),s.appendChild(Ti(t,void 0,e,!0));else{const i=_i(t,e.TeX.delimiters);if(1===i.length&&"text"===i[0].type)return null;s=document.createDocumentFragment();for(let t=0;t{})}}))}}else e.speechEngine;else{const e=new SpeechSynthesisUtterance(t);window&&window.speechSynthesis.speak(e)}}function Pi(t,e,s){if(!window)return;if(!s&&window.mathlive&&(s=window.mathlive.config),"amazon"!==(s=s||{}).speechEngine)return void(s.handleSpeak&&s.handleSpeak(e));if(!window.AWS)return;const i=new window.AWS.Polly({apiVersion:"2016-06-10"}),a={OutputFormat:"json",VoiceId:s.speechEngineVoice||"Joanna",Text:e,TextType:"ssml",SpeechMarkTypes:["ssml"]};window.mathlive=window.mathlive||{},window.mathlive.readAloudElement=t;const o=s.onReadAloudStatus||window.mathlive.onReadAloudStatus;i.synthesizeSpeech(a,(function(t,e){if(t);else if(e&&e.AudioStream){const t=new TextDecoder("utf-8").decode(new Uint8Array(e.AudioStream));window.mathlive.readAloudMarks=t.split("\n").map(t=>t?JSON.parse(t):{}),window.mathlive.readAloudTokens=[];for(const e of window.mathlive.readAloudMarks)e.value&&window.mathlive.readAloudTokens.push(e.value);window.mathlive.readAloudCurrentMark="",a.OutputFormat="mp3",a.SpeechMarkTypes=[],i.synthesizeSpeech(a,(function(t,e){if(t);else if(e&&e.AudioStream){const t=new Uint8Array(e.AudioStream),s=new Blob([t.buffer],{type:"audio/mpeg"}),i=URL.createObjectURL(s);window.mathlive.readAloudAudio?window.mathlive.readAloudAudio.pause():(window.mathlive.readAloudAudio=new Audio,window.mathlive.readAloudAudio.addEventListener("ended",()=>{o&&o(window.mathlive.readAloudMathField,"ended"),window.mathlive.readAloudMathField?(window.mathlive.readAloudMathField._render(),window.mathlive.readAloudElement=null,window.mathlive.readAloudMathField=null,window.mathlive.readAloudTokens=[],window.mathlive.readAloudMarks=[],window.mathlive.readAloudCurrentMark=""):function t(e){e.classList.remove("highlight"),e.children&&Array.from(e.children).forEach(e=>{t(e)})}(window.mathlive.readAloudElement)}),window.mathlive.readAloudAudio.addEventListener("timeupdate",()=>{let t="";const e=1e3*window.mathlive.readAloudAudio.currentTime+100;for(const s of window.mathlive.readAloudMarks)s.time0&&Array.from(e.children).forEach(e=>{t(e,s)})):(e.classList.add("highlight"),e.children&&e.children.length>0&&Array.from(e.children).forEach(e=>{t(e)}))}(window.mathlive.readAloudElement,window.mathlive.readAloudCurrentMark)))})),window.mathlive.readAloudAudio.src=i,o&&o(window.mathlive.readAloudMathField,"playing"),window.mathlive.readAloudAudio.play()}}))}}))}function Bi(t){let e=t;if("string"==typeof t&&(e=document.getElementById(t),!e))throw Error(`The element with ID "${t}" could not be found.`);return e}function Oi(t,e){Di&&((e=e||{}).renderToMarkup=e.renderToMarkup||zi,e.renderToMathML=e.renderToMathML||Ei,e.renderToSpeakableText=e.renderToSpeakableText||qi,e.macros=e.macros||wt.MACROS,Di.renderMathInElement(Bi(t),e))}function $i(t){if(t.namespace){if(!/^[a-z]+[-]?$/.test(t.namespace))throw Error("options.namespace must be a string of lowercase characters only");/-$/.test(t.namespace)||(t.namespace+="-")}}const Ri={latexToMarkup:zi,latexToMathML:Ei,latexToSpeakableText:qi,latexToAST:function(t,e){if(!Yt.toAST)return{};(e=e||{}).macros=e.macros||{},Object.assign(e.macros,wt.MACROS);const s=le.parseTokens(n(t),"math",null,e.macros);return Yt.toAST(s,e)},astToLatex:function(t,e){return hi(t,e)},makeMathField:function(t,e){if(!Ai)throw Error("The MathField module is not loaded.");return(e=e||{}).handleSpeak=e.handleSpeak||Ii,e.handleReadAloud=e.handleReadAloud||Pi,new Ai.MathField(Bi(t),e)},renderMathInDocument:function(t){Oi(document.body,t)},renderMathInElement:Oi,revertToOriginalContent:function(t,e){(t=(t=Bi(t)).children[1])instanceof Ai.MathField?t.revertToOriginalContent():($i(e=e||{}),t.innerHTML=t.getAttribute("data-"+(e.namespace||"")+"original-content"))},getOriginalContent:function(t,e){return(t=(t=Bi(t)).children[1])instanceof Ai.MathField?t.originalContent:($i(e=e||{}),t.getAttribute("data-"+(e.namespace||"")+"original-content"))},readAloud:Pi,readAloudStatus:function(){return window?(window.mathlive=window.mathlive||{},window.mathlive.readAloudAudio?window.mathlive.readAloudAudio.paused?"paused":window.mathlive.readAloudAudio.ended?"ready":"playing":"ready"):"unavailable"},pauseReadAloud:function(){window&&(window.mathlive=window.mathlive||{},window.mathlive.readAloudAudio&&(window.mathlive.onReadAloudStatus&&window.mathlive.onReadAloudStatus(window.mathlive.readAloudMathField,"paused"),window.mathlive.readAloudAudio.pause()))},resumeReadAloud:function(){window&&(window.mathlive=window.mathlive||{},window.mathlive.readAloudAudio&&(window.mathlive.onReadAloudStatus&&window.mathlive.onReadAloudStatus(window.mathlive.readAloudMathField,"playing"),window.mathlive.readAloudAudio.play()))},playReadAloud:function(t,e){if(window&&(window.mathlive=window.mathlive||{},window.mathlive.readAloudAudio)){let s=0;if(window.mathlive.readAloudFinalToken=null,t){window.mathlive.readAloudMarks=window.mathlive.readAloudMarks||[];for(const e of window.mathlive.readAloudMarks)e.value===t&&(s=e.time/1e3);let i=window.mathlive.readAloudTokens.indexOf(t);i>=0&&(i+=e,i=|<=|>>|<<|:=|!=|\*\*|\+\+|--)$/.test(digraph)
- ? digraph
- : '';
+ const result = /^(>=|<=|>>|<<|:=|!=)$/.test(digraph) ? digraph : '';
if (result) {
expr.index += 1;
}
@@ -1734,7 +1733,7 @@ MathAtom.MathAtom.prototype.toAST = function(options) {
result = wrapFn(
'pow',
parse(this.body, options),
- wrapFn('divide', 1, parse(this.index, options))
+ wrapFn('divide', wrapNum(1), parse(this.index, options))
);
} else {
result = wrapFn('sqrt', parse(this.body, options));
diff --git a/dist/src/addons/outputLatex.js b/dist/src/addons/outputLatex.js
index 540a4e362..66e2f1fa6 100644
--- a/dist/src/addons/outputLatex.js
+++ b/dist/src/addons/outputLatex.js
@@ -22,6 +22,11 @@ function findLongestRun(atoms, property, value) {
}
i++;
}
+ } else if (property === 'mode') {
+ while (atoms[i]) {
+ if (atoms[i][property] !== value) break;
+ i++;
+ }
} else {
while (atoms[i]) {
if (atoms[i].type !== 'mop' && atoms[i][property] !== value) break;
diff --git a/dist/src/core/definitions.js b/dist/src/core/definitions.js
index a9c3650a8..5f0d789d7 100644
--- a/dist/src/core/definitions.js
+++ b/dist/src/core/definitions.js
@@ -3624,17 +3624,17 @@ const COMMAND_MODE_CHARACTERS = /[a-zA-Z0-9!@*()-=+{}[\]\\';:?/.,~<>`|'$%#&^_" ]
// but Firefox doesn't support it
// (https://bugzilla.mozilla.org/show_bug.cgi?id=1361876). Booo...
// See also https://stackoverflow.com/questions/26133593/using-regex-to-match-international-unicode-alphanumeric-characters-in-javascript
+
+// Edit : https://github.com/arnog/mathlive/issues/195#issuecomment-493741744
const LETTER =
- // typeof navigator !== 'undefined' &&
- // /firefox|edge/i.test(navigator.userAgent) ?
- /[a-zA-ZаАбБвВгГдДеЕёЁжЖзЗиИйЙкКлЛмМнНоОпПрРсСтТуУфФхХцЦчЧшШщЩъЪыЫьЬэЭюЮяĄąĆćĘꣳŃńÓ󌜏źŻżàâäôéèëêïîçùûüÿæœÀÂÄÔÉÈËÊÏΟÇÙÛÜÆŒäöüßÄÖÜẞàèéìíîòóùúÀÈÉÌÍÎÒÓÙÚáéíñóúüÁÉÍÑÓÚÜ]/;
-// : new RegExp('\\p{Letter}', 'u');
+ // typeof navigator !== 'undefined' && /firefox/i.test(navigator.userAgent) ?
+ /[a-zA-ZаАбБвВгГдДеЕёЁжЖзЗиИйЙкКлЛмМнНоОпПрРсСтТуУфФхХцЦчЧшШщЩъЪыЫьЬэЭюЮяĄąĆćĘꣳŃńÓ󌜏źŻżàâäôéèëêïîçùûüÿæœÀÂÄÔÉÈËÊÏΟÇÙÛÜÆŒäöüßÄÖÜẞàèéìíîòóùúÀÈÉÌÍÎÒÓÙÚáéíñóúüÁÉÍÑÓÚÜ]/; // :
+ // new RegExp("\\p{Letter}", 'u');
const LETTER_AND_DIGITS =
- // typeof navigator !== 'undefined' &&
- // /firefox|edge/i.test(navigator.userAgent) ?
- /[0-9a-zA-ZаАбБвВгГдДеЕёЁжЖзЗиИйЙкКлЛмМнНоОпПрРсСтТуУфФхХцЦчЧшШщЩъЪыЫьЬэЭюЮяĄąĆćĘꣳŃńÓ󌜏źŻżàâäôéèëêïîçùûüÿæœÀÂÄÔÉÈËÊÏΟÇÙÛÜÆŒäöüßÄÖÜẞàèéìíîòóùúÀÈÉÌÍÎÒÓÙÚáéíñóúüÁÉÍÑÓÚÜ]/;
-// : new RegExp('[0-9\\p{Letter}]', 'u');
+ // typeof navigator !== 'undefined' && /firefox/i.test(navigator.userAgent) ?
+ /[0-9a-zA-ZаАбБвВгГдДеЕёЁжЖзЗиИйЙкКлЛмМнНоОпПрРсСтТуУфФхХцЦчЧшШщЩъЪыЫьЬэЭюЮяĄąĆćĘꣳŃńÓ󌜏źŻżàâäôéèëêïîçùûüÿæœÀÂÄÔÉÈËÊÏΟÇÙÛÜÆŒäöüßÄÖÜẞàèéìíîòóùúÀÈÉÌÍÎÒÓÙÚáéíñóúüÁÉÍÑÓÚÜ]/; // :
+ // new RegExp("[0-9\\p{Letter}]", 'u');
export default {
matchCodepoint,
diff --git a/dist/src/core/mathAtom.js b/dist/src/core/mathAtom.js
index 95053a6df..96f438ffc 100644
--- a/dist/src/core/mathAtom.js
+++ b/dist/src/core/mathAtom.js
@@ -802,7 +802,8 @@ class MathAtom {
this.leftDelim,
innerHeight,
innerDepth,
- localContext
+ localContext,
+ 'ML__open'
)
)
);
@@ -867,7 +868,7 @@ class MathAtom {
innerHeight,
innerDepth,
localContext,
- classes
+ (classes || '') + ' ML__close'
)
)
);
@@ -1535,6 +1536,20 @@ class MathAtom {
result.caret = this.caret;
}
}
+ if (this.containsCaret) {
+ if (Array.isArray(result)) {
+ // For a /mleft.../mright, tag the first and last atom in the
+ // list with the "ML__contains-caret" style (it's the open and
+ // closing fence, respectively)
+ result[0].classes =
+ (result[0].classes || '') + ' ML__contains-caret';
+ result[result.length - 1].classes =
+ (result[result.length - 1].classes || '') +
+ ' ML__contains-caret';
+ } else {
+ result.classes = (result.classes || '') + ' ML__contains-caret';
+ }
+ }
// Finally, attach any necessary superscript, subscripts
if (!this.limits && (this.superscript || this.subscript)) {
// If limits is set, the attachment of sup/sub was handled
diff --git a/dist/src/core/parser.js b/dist/src/core/parser.js
index 2166d5be6..8b9b78427 100644
--- a/dist/src/core/parser.js
+++ b/dist/src/core/parser.js
@@ -1360,22 +1360,13 @@ class Parser {
}
}
} else if (token.type === '#') {
- // Parameter token in an implicit group (not as a parameter)
+ // Parameter token
if (token.value === '?') {
// '#?' indicates that a placeholder should be used
result = this.placeholder();
} else if (this.args) {
- result = this.args[token.value] || null;
- if (Array.isArray(result) && result.length === 1) {
- result = result[0];
- } else if (Array.isArray(result)) {
- const group = new MathAtom(this.parseMode, 'group');
- group.body = result;
- result = group;
- } else {
- // If there is no argument value specified, use a placeholder
- result = this.placeholder();
- }
+ // Otherwise, substitute the token with a provided argument
+ result = this.args[token.value] || this.placeholder();
}
} else {
console.warn(
diff --git a/dist/src/editor/editor-editableMathlist.js b/dist/src/editor/editor-editableMathlist.js
index 697e64496..d7be0e41d 100644
--- a/dist/src/editor/editor-editableMathlist.js
+++ b/dist/src/editor/editor-editableMathlist.js
@@ -275,7 +275,7 @@ EditableMathlist.prototype.setPath = function(selection, extent) {
this.path = newPath;
if (extent === 0 && this.anchor().type === 'placeholder') {
// select the placeholder
- newPath[newPath.length - 1].offset = 0;
+ newPath[newPath.length - 1].offset = this.anchorOffset() - 1;
extent = 1;
}
selection = {
diff --git a/dist/src/editor/editor-mathfield.js b/dist/src/editor/editor-mathfield.js
index c692ab039..2b59fc7c5 100644
--- a/dist/src/editor/editor-mathfield.js
+++ b/dist/src/editor/editor-mathfield.js
@@ -77,6 +77,7 @@ import '../addons/outputSpokenText.js';
@property {boolean} keypressVibration?
@property {string} keypressSound?
@property {string} plonkSound?
+ @property {boolean} readOnly?
@property {"mathlive" | "sre"} textToSpeechRules?
@property {"ssml" | "mac"} textToSpeechMarkup?
@property {object} textToSpeechRulesOptions?
@@ -865,7 +866,22 @@ class MathField {
// smart mode
this._resetKeystrokeBuffer();
this.smartModeSuppressed = false;
- anchor = this._pathFromPoint(anchorX, anchorY, { bias: 0 });
+
+ const wrapperBounds = this.field
+ .querySelector('.ML__mathlive')
+ .getBoundingClientRect();
+ if (anchorX > wrapperBounds.right) {
+ // If outside the bounds of the rendered formula,
+ // set the anchor to the last element of the root
+ anchor = [
+ {
+ relation: 'body',
+ offset: this.mathlist.root.body.length - 1,
+ },
+ ];
+ } else {
+ anchor = this._pathFromPoint(anchorX, anchorY, { bias: 0 });
+ }
if (anchor) {
// Create divs to block out pointer tracking to the left and right of
// the mathfield (to avoid triggering the hover of the virtual
@@ -984,8 +1000,6 @@ class MathField {
if (typeof this.config.onSelectionDidChange === 'function') {
this.config.onSelectionDidChange(this);
}
- this.removeIsolatedSpace_();
- this.mathlist.contentDidChange();
}
_onContentDidChange() {
if (this.undoManager.canRedo()) {
@@ -1061,6 +1075,7 @@ class MathField {
}
}
_onFocus() {
+ if (this.config.readOnly) return;
if (this.blurred) {
this.blurred = false;
// The textarea may be a span (on mobile, for example), so check that
@@ -1841,6 +1856,9 @@ class MathField {
if (!shortcut && !selector) {
return true;
}
+ if (this.config.readOnly && selector[0] === 'insert') {
+ return true;
+ }
// 5. Perform the action matching this shortcut
// 5.1 Remove any error indicator (wavy underline) on the current command
// sequence (if there are any)
@@ -1963,6 +1981,10 @@ class MathField {
* @private
*/
_onTypedText(text, options) {
+ if (this.config.readOnly) {
+ this._announce('plonk');
+ return;
+ }
options = options || {};
// Focus, then provide audio and haptic feedback
if (options.focus) {
@@ -2170,15 +2192,31 @@ class MathField {
this.mathlist.forEach(a => {
a.caret = '';
a.isSelected = false;
+ a.containsCaret = false;
});
const hasFocus = this.$hasFocus();
if (this.mathlist.isCollapsed()) {
- this.mathlist.anchor().caret = hasFocus ? this.mode : '';
+ this.mathlist.anchor().caret =
+ hasFocus && !this.config.readOnly ? this.mode : '';
} else {
this.mathlist.forEachSelected(a => {
a.isSelected = true;
});
}
+
+ if (hasFocus && !this.config.readOnly) {
+ let ancestor = this.mathlist.ancestor(1);
+ let i = 1;
+ let done = false;
+ while (ancestor && !done) {
+ if (ancestor.type === 'surd' || ancestor.type === 'leftright') {
+ ancestor.containsCaret = true;
+ done = true;
+ }
+ i += 1;
+ ancestor = this.mathlist.ancestor(i);
+ }
+ }
//
// 4. Create spans corresponding to the updated mathlist
//
@@ -2228,7 +2266,10 @@ class MathField {
0,
this.config.horizontalSpacingScale
);
- this.field.classList.toggle('ML__focused', hasFocus);
+ this.field.classList.toggle(
+ 'ML__focused',
+ hasFocus && !this.config.readOnly
+ );
// Probably want to generate content on the fly depending on what to speak
this.accessibleNode.innerHTML =
"
-[]()
+[]()
[](https://raw.githubusercontent.com/arnog/mathlive/master/LICENSE.txt)
[](https://travis-ci.org/arnog/mathlive)
@@ -47,12 +38,14 @@ Global changes :
-MathLive is a JavaScript library to render and edit math.
+MathLive: Math Input Made Easy
-- [x] TeX-quality typesetting
-- [x] Easy to use interface for math editing
-- [x] Fast and small
-- [x] Works great on desktop and on mobile devices thanks to an extensive set of virtual keyboards
+- [x] JavaScript library easy to integrate in your project
+- [x] Beautiful, TeX-quality typesetting
+- [x] Easy to use interface for formula editing
+- [x] Designed for mobile devices with an extensive set of virtual keyboards
+- [x] Accessility support: screen reader compatible, and includes custom
+ math-to-speech support
- [x] Outputs **LaTeX**, **MathML** and **MathJSON** (Abstract Syntax Tree)
- [x] And it is easy to customize to your needs!
diff --git a/css/mathlive.core.less b/css/mathlive.core.less
index 90e0271fb..ca6fa9c15 100644
--- a/css/mathlive.core.less
+++ b/css/mathlive.core.less
@@ -1,6 +1,5 @@
@math_main: KaTeX_Main;
-
.ML__mathlive {
// font: 400 100% @math_main,'times new roman',serif;
line-height: 0;
@@ -25,7 +24,7 @@
width: min-content;
- // Encourage browsers to consider allocating a hardware accelerated
+ // Encourage browsers to consider allocating a hardware accelerated
// layer for this element.
transform: translateZ(0);
}
@@ -36,7 +35,8 @@
cursor: text;
}
-.ML__strut, .ML__strut--bottom {
+.ML__strut,
+.ML__strut--bottom {
display: inline-block;
min-height: 1em;
}
@@ -72,27 +72,27 @@
margin-right: -1ex;
position: relative;
color: var(--caret);
- animation: ML__caret-command-blink 1.05s step-end forwards infinite;
+ animation: ML__caret-blink 1.05s step-end forwards infinite;
}
/* Text mode */
.ML__text {
+ line-height: 1;
white-space: pre;
}
.ML__focused .ML__text {
- background: hsla(var(--hue), 40%, 50%, .1);
-}
-
-@keyframes ML__caret-command-blink {
- from, to { opacity: 1; }
- 50% { opacity: 0; }
+ background: hsla(var(--hue), 40%, 50%, 0.1);
}
-
-@keyframes ML__caret-blink {
- from, to { border-color: var(--caret); }
- 50% { border-color: transparent; }
+@keyframes ML__caret-blink {
+ from,
+ to {
+ opacity: 1;
+ }
+ 50% {
+ opacity: 0;
+ }
}
/* Style for the invisible textarea element which is used
@@ -114,13 +114,12 @@ to make sure it doesn't show. */
font-size: 16px;
}
-
.ML__fieldcontainer {
display: flex;
flex-flow: row;
justify-content: space-between;
align-items: flex-end;
- min-height: 39px; /* Need some room for the virtual keyboard toggle */
+ min-height: 39px; /* Need some room for the virtual keyboard toggle */
/* Prevent the browser from trying to interpret touch gestures in the field */
/* "Disabling double-tap to zoom removes the need for browsers to
@@ -129,7 +128,7 @@ to make sure it doesn't show. */
width: 100%;
--hue: 212;
- --highlight: hsl(var(--hue),97%,85%);
+ --highlight: hsl(var(--hue), 97%, 85%);
// --highlight: Highlight; // Highlight color defined in https://www.w3.org/TR/REC-CSS2/ui.html
// // It has been deprectated in https://www.w3.org/TR/css-color-3/ :(
// --on-highlight: HighlightText;
@@ -137,26 +136,26 @@ to make sure it doesn't show. */
--highlight-inactive: #ccc;
--primary: hsl(var(--hue), 40%, 50%);
- --secondary: hsl(var(--hue),19%,26%);
- --on-secondary: hsl(var(--hue),19%,26%);
+ --secondary: hsl(var(--hue), 19%, 26%);
+ --on-secondary: hsl(var(--hue), 19%, 26%);
}
@media (prefers-color-scheme: dark) {
- body:not([theme="light"]) .ML__fieldcontainer {
+ body:not([theme='light']) .ML__fieldcontainer {
--highlight: hsl(var(--hue), 40%, 49%);
--highlight-inactive: hsl(var(--hue), 10%, 35%);
- --caret: hsl(var(--hue),97%,85%);
- --secondary: hsl(var(--hue),25%,35%);
- --on-secondary: hsl(0,0%,98%);
+ --caret: hsl(var(--hue), 97%, 85%);
+ --secondary: hsl(var(--hue), 25%, 35%);
+ --on-secondary: hsl(0, 0%, 98%);
}
}
-body[theme="dark"] .ML__fieldcontainer {
+body[theme='dark'] .ML__fieldcontainer {
--highlight: hsl(var(--hue), 40%, 49%);
--highlight-inactive: hsl(var(--hue), 10%, 35%);
- --caret: hsl(var(--hue),97%,85%);
- --secondary: hsl(var(--hue),25%,35%);
- --on-secondary: hsl(0,0%,98%);
+ --caret: hsl(var(--hue), 97%, 85%);
+ --secondary: hsl(var(--hue), 25%, 35%);
+ --on-secondary: hsl(0, 0%, 98%);
}
.ML__fieldcontainer:focus {
@@ -165,7 +164,7 @@ body[theme="dark"] .ML__fieldcontainer {
}
/* This is the actual field content (formula) */
-.ML__fieldcontainer__field {
+.ML__fieldcontainer__field {
align-self: center;
position: relative;
overflow: hidden;
@@ -174,8 +173,6 @@ body[theme="dark"] .ML__fieldcontainer {
width: 100%;
}
-
-
.ML__virtual-keyboard-toggle {
display: flex;
align-self: center;
@@ -193,28 +190,27 @@ body[theme="dark"] .ML__fieldcontainer {
/* Avoid some weird blinking with :hover */
border-radius: 50%;
border: 1px solid transparent;
- transition: background 0.2s cubic-bezier(.64,.09,.08,1);
+ transition: background 0.2s cubic-bezier(0.64, 0.09, 0.08, 1);
color: var(--primary);
fill: currentColor;
background: transparent;
&:hover {
- background: hsl(var(--hue),25%,35%);
- color: hsl(0,0%,98%);
+ background: hsl(var(--hue), 25%, 35%);
+ color: hsl(0, 0%, 98%);
fill: currentColor;
border-radius: 50%;
// border: 1px solid rgba(255, 255, 255, .9);
- box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 1px 5px 0 rgba(0, 0, 0, 0.12), 0 3px 1px -2px rgba(0, 0, 0, 0.2);
+ box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14),
+ 0 1px 5px 0 rgba(0, 0, 0, 0.12), 0 3px 1px -2px rgba(0, 0, 0, 0.2);
}
}
-
-
/* The element that display info while in command mode */
.ML__popover {
visibility: hidden;
min-width: 160px;
- background-color: rgba(97, 97, 97, .95);
+ background-color: rgba(97, 97, 97, 0.95);
color: #fff;
text-align: center;
border-radius: 6px;
@@ -226,23 +222,23 @@ body[theme="dark"] .ML__fieldcontainer {
flex-direction: column;
justify-content: center;
- box-shadow: 0 14px 28px rgba(0,0,0,0.25), 0 10px 10px rgba(0,0,0,0.22);
- transition: all 0.2s cubic-bezier(.64,.09,.08,1);
+ box-shadow: 0 14px 28px rgba(0, 0, 0, 0.25), 0 10px 10px rgba(0, 0, 0, 0.22);
+ transition: all 0.2s cubic-bezier(0.64, 0.09, 0.08, 1);
/* The 'tip' of the popover panel */
&::after {
- content: "";
+ content: '';
position: absolute;
top: -5px;
left: calc(50% - 3px);
- width: 0;
- height: 0;
+ width: 0;
+ height: 0;
border-left: 5px solid transparent;
border-right: 5px solid transparent;
-
+
font-size: 1rem;
-
- border-bottom: 5px solid rgba(97, 97, 97, .9);
+
+ border-bottom: 5px solid rgba(97, 97, 97, 0.9);
}
}
@@ -250,7 +246,7 @@ body[theme="dark"] .ML__fieldcontainer {
&::after {
top: auto;
bottom: -5px;
- border-top: 5px solid rgba(97, 97, 97, .9);
+ border-top: 5px solid rgba(97, 97, 97, 0.9);
border-bottom: 0;
}
}
diff --git a/css/mathlive.less b/css/mathlive.less
index 2cb3bac33..4f67eaa83 100755
--- a/css/mathlive.less
+++ b/css/mathlive.less
@@ -1,35 +1,36 @@
-@import "__fonts.less";
+@import '__fonts.less';
-@monospace: 'Source Code Pro', Consolas, 'Roboto Mono', Menlo, 'Bitstream Vera Sans Mono',
- 'DejaVu Sans Mono', Monaco, Courier, monospace;
-@system: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
- "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans",
- "Droid Sans", "Helvetica Neue", sans-serif;
+@monospace: 'Source Code Pro', Consolas, 'Roboto Mono', Menlo,
+ 'Bitstream Vera Sans Mono', 'DejaVu Sans Mono', Monaco, Courier, monospace;
+@system: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto',
+ 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
+ sans-serif;
@math_main: KaTeX_Main;
@math_math: KaTeX_Math;
@font-face {
font-family: KaTeX_Main;
- src: url(fonts/KaTeX_Main-Regular.woff2) format("woff2"),url(fonts/KaTeX_Main-Regular.woff) format("woff");
+ src: url(fonts/KaTeX_Main-Regular.woff2) format('woff2'),
+ url(fonts/KaTeX_Main-Regular.woff) format('woff');
font-weight: 400;
font-style: normal;
- font-display: "swap";
+ font-display: 'swap';
}
@font-face {
font-family: KaTeX_Math;
- src: url(fonts/KaTeX_Math-Italic.woff2) format("woff2"),url(fonts/KaTeX_Math-Italic.woff) format("woff");
+ src: url(fonts/KaTeX_Math-Italic.woff2) format('woff2'),
+ url(fonts/KaTeX_Math-Italic.woff) format('woff');
font-weight: 400;
font-style: italic;
- font-display: "swap";
+ font-display: 'swap';
}
-
-@shadow1: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
-@shadow2: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
-@shadow3: 0 10px 20px rgba(0,0,0,0.19), 0 6px 6px rgba(0,0,0,0.23);
-@shadow4: 0 14px 28px rgba(0,0,0,0.25), 0 10px 10px rgba(0,0,0,0.22);
-@shadow5: 0 19px 38px rgba(0,0,0,0.30), 0 15px 12px rgba(0,0,0,0.22);
+@shadow1: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
+@shadow2: 0 3px 6px rgba(0, 0, 0, 0.16), 0 3px 6px rgba(0, 0, 0, 0.23);
+@shadow3: 0 10px 20px rgba(0, 0, 0, 0.19), 0 6px 6px rgba(0, 0, 0, 0.23);
+@shadow4: 0 14px 28px rgba(0, 0, 0, 0.25), 0 10px 10px rgba(0, 0, 0, 0.22);
+@shadow5: 0 19px 38px rgba(0, 0, 0, 0.3), 0 15px 12px rgba(0, 0, 0, 0.22);
// 0 8px 10px 1px rgba(0, 0, 0, .14),
// 0 3px 14px 2px rgba(0, 0, 0, .12),
@@ -44,7 +45,6 @@
@secondary: #cd0030;
// @highlight: rgba(243, 243, 21, 0.28);
-
// The mu (mathematical unit) is defined by TeX as 1/18 em
@mu: 1/18em;
@@ -65,7 +65,7 @@
by default, so the font-style below is only
useful when a fallback font is used
*/
- font-style: italic;
+ font-style: italic;
}
.ML__mathrm {
@@ -118,39 +118,80 @@
font-style: italic;
}
-.ML__series_ul { font-weight: 100; }
-.ML__series_el { font-weight: 100; }
-.ML__series_l { font-weight: 200; }
-.ML__series_sl { font-weight: 300; }
-
-.ML__series_sb { font-weight: 500; }
-.ML__bold { font-weight: 700; }
-.ML__series_eb { font-weight: 800; }
-.ML__series_ub { font-weight: 900; }
-
-.ML__series_uc { font-stretch: ultra-condensed; }
-.ML__series_ec { font-stretch: extra-condensed; }
-.ML__series_c { font-stretch: condensed; }
-.ML__series_sc { font-stretch: semi-condensed; }
-.ML__series_sx { font-stretch: semi-expanded; }
-.ML__series_x { font-stretch: expanded; }
-.ML__series_ex { font-stretch: extra-expanded; }
-.ML__series_ux { font-stretch: ultra-expanded; }
+.ML__series_ul {
+ font-weight: 100;
+}
+.ML__series_el {
+ font-weight: 100;
+}
+.ML__series_l {
+ font-weight: 200;
+}
+.ML__series_sl {
+ font-weight: 300;
+}
+.ML__series_sb {
+ font-weight: 500;
+}
+.ML__bold {
+ font-weight: 700;
+}
+.ML__series_eb {
+ font-weight: 800;
+}
+.ML__series_ub {
+ font-weight: 900;
+}
-.ML__it { font-style: italic; }
-.ML__shape_ol { -webkit-text-stroke: 1px black; text-stroke: 1px black; color: transparent; }
-.ML__shape_sc { font-variant: small-caps; }
-.ML__shape_sl { font-style: oblique; }
+.ML__series_uc {
+ font-stretch: ultra-condensed;
+}
+.ML__series_ec {
+ font-stretch: extra-condensed;
+}
+.ML__series_c {
+ font-stretch: condensed;
+}
+.ML__series_sc {
+ font-stretch: semi-condensed;
+}
+.ML__series_sx {
+ font-stretch: semi-expanded;
+}
+.ML__series_x {
+ font-stretch: expanded;
+}
+.ML__series_ex {
+ font-stretch: extra-expanded;
+}
+.ML__series_ux {
+ font-stretch: ultra-expanded;
+}
+.ML__it {
+ font-style: italic;
+}
+.ML__shape_ol {
+ -webkit-text-stroke: 1px black;
+ text-stroke: 1px black;
+ color: transparent;
+}
+.ML__shape_sc {
+ font-variant: small-caps;
+}
+.ML__shape_sl {
+ font-style: oblique;
+}
/* First level emphasis */
-.ML__emph { color: #bc2612; }
+.ML__emph {
+ color: #bc2612;
+}
/* Second level emphasis */
-.ML__emph .ML__emph{ color: #0c7f99; }
-
-
-
+.ML__emph .ML__emph {
+ color: #0c7f99;
+}
.ML__mathlive {
// Style used to highlight a portion of the expression when speaking
@@ -158,29 +199,39 @@
// See https://www.w3.org/WAI/RD/2012/text-customization/r11
// and https://www.cs.cmu.edu/~jbigham/pubs/pdfs/2017/colors.pdf
.highlight {
- color: #007CB2; // Complementary to peach
- background: #edd1b0; // Peach
+ color: #007cb2; // Complementary to peach
+ background: #edd1b0; // Peach
}
// This value is also used in fontMetrics.js, if you change it make sure the
// values match.
- @ptperem: 10.0;
+ @ptperem: 10;
@nulldelimiterspace: 1.2em / @ptperem;
- @thinspace: 0.16667em; // 3mu
- @mediumspace: 0.22222em; // 4mu
- @thickspace: 0.27778em; // 5mu
-
+ @thinspace: 0.16667em; // 3mu
+ @mediumspace: 0.22222em; // 4mu
+ @thickspace: 0.27778em; // 5mu
+ .reset-textstyle.scriptstyle {
+ font-size: 0.7em;
+ }
+ .reset-textstyle.scriptscriptstyle {
+ font-size: 0.5em;
+ }
- .reset-textstyle.scriptstyle { font-size: 0.7em; }
- .reset-textstyle.scriptscriptstyle { font-size: 0.5em; }
-
- .reset-scriptstyle.textstyle { font-size: 1.42857em; }
- .reset-scriptstyle.scriptscriptstyle { font-size: 0.71429em; }
+ .reset-scriptstyle.textstyle {
+ font-size: 1.42857em;
+ }
+ .reset-scriptstyle.scriptscriptstyle {
+ font-size: 0.71429em;
+ }
- .reset-scriptscriptstyle.textstyle { font-size: 2em; }
- .reset-scriptscriptstyle.scriptstyle { font-size: 1.4em; }
+ .reset-scriptscriptstyle.textstyle {
+ font-size: 2em;
+ }
+ .reset-scriptscriptstyle.scriptstyle {
+ font-size: 1.4em;
+ }
.style-wrap {
position: relative;
}
@@ -210,12 +261,12 @@
.mfrac {
// line-height: 0;
- > span {
+ > span {
// justify-content: center;
text-align: center;
}
- .frac-line {
+ .frac-line {
width: 100%;
// &:before {
@@ -226,13 +277,13 @@
// }
&:after {
- content: "";
+ content: '';
display: block;
margin-top: -0.04em;
border-bottom-style: solid;
- border-bottom-width: 0.04em;
- min-height: 0.04em;
- /* There's a bug since Chrome 62 where
+ border-bottom-width: 0.04em;
+ min-height: 0.04em;
+ /* There's a bug since Chrome 62 where
sub-pixel border lines don't draw at some zoom
levels (110%, 90%). Setting the min-height seems to work around it.
*/
@@ -285,7 +336,7 @@
margin-right: 2em;
}
}
-
+
.mspace {
display: inline-block;
@@ -369,18 +420,18 @@
&:before {
border-bottom-style: solid;
border-bottom-width: 0.04em;
- content: "";
+ content: '';
display: block;
}
&:after {
border-bottom-style: solid;
- border-bottom-width: 0.04em;
- min-height: thin; /* There's a bug since Chrome 62 where
+ border-bottom-width: 0.04em;
+ min-height: thin; /* There's a bug since Chrome 62 where
sub-pixel border lines don't draw at some zoom
levels (110%, 90%). Setting the min-height seems to work around it.
*/
- content: "";
+ content: '';
display: block;
margin-top: -1px;
}
@@ -400,12 +451,12 @@
width: 100%;
&:before {
- content: "";
+ content: '';
display: block;
margin-top: -0.04em;
border-bottom-style: solid;
- border-bottom-width: .04em;
- min-height: 0.5px;
+ border-bottom-width: 0.04em;
+ min-height: 0.5px;
/* There's a bug since Chrome 62 where
sub-pixel border lines don't draw at some zoom
levels (110%, 90%). Setting the min-height seems to work around it.
@@ -414,7 +465,7 @@
&:after {
border-bottom-width: 1px;
- content: " ";
+ content: ' ';
display: block;
margin-top: -0.1em;
}
@@ -423,19 +474,20 @@
> .root {
// These values are taken from the definition of `\r@@t`,
// `\mkern 5mu` and `\mkern -10mu`.
- margin-left: 5*(@mu);
- margin-right: -10*(@mu);
+ margin-left: 5 * (@mu);
+ margin-right: -10 * (@mu);
}
}
- .sizing, .fontsize-ensurer {
+ .sizing,
+ .fontsize-ensurer {
display: inline-block;
@size1: 0.5;
@size2: 0.7;
@size3: 0.8;
@size4: 0.9;
- @size5: 1.0;
+ @size5: 1;
@size6: 1.2;
@size7: 1.44;
@size8: 1.73;
@@ -444,8 +496,8 @@
.generate-size-change(@from, @to) {
&.reset-size@{from}.size@{to} {
- @sizeFromVariable: ~"size@{from}";
- @sizeToVariable: ~"size@{to}";
+ @sizeFromVariable: ~'size@{from}';
+ @sizeToVariable: ~'size@{to}';
font-size: (@@sizeToVariable / @@sizeFromVariable) * 1em;
}
}
@@ -466,10 +518,18 @@
}
.delimsizing {
- &.size1 { font-family: KaTeX_Size1; }
- &.size2 { font-family: KaTeX_Size2; }
- &.size3 { font-family: KaTeX_Size3; }
- &.size4 { font-family: KaTeX_Size4; }
+ &.size1 {
+ font-family: KaTeX_Size1;
+ }
+ &.size2 {
+ font-family: KaTeX_Size2;
+ }
+ &.size3 {
+ font-family: KaTeX_Size3;
+ }
+ &.size4 {
+ font-family: KaTeX_Size4;
+ }
&.mult {
.delim-size1 > span {
@@ -532,7 +592,7 @@
display: inline-block;
}
- .col-align-c > .vlist {
+ .col-align-c > .vlist {
text-align: center;
}
@@ -540,17 +600,16 @@
text-align: left;
}
- .col-align-r > .vlist{
+ .col-align-r > .vlist {
text-align: right;
}
}
}
.ML__smart-fence__close {
- opacity: .5;
+ opacity: 0.5;
}
-
.ML__selection {
background: var(--highlight-inactive);
box-sizing: border-box;
@@ -562,7 +621,14 @@
// display:inline-block;
}
-
+.ML__contains-caret.ML__close,
+.ML__contains-caret.ML__open,
+.ML__contains-caret > .ML__close,
+.ML__contains-caret > .ML__open,
+.sqrt.ML__contains-caret > .sqrt-sign,
+.sqrt.ML__contains-caret > .vlist > span > .sqrt-line {
+ color: var(--caret);
+}
.ML__command {
font-family: @monospace;
@@ -572,21 +638,18 @@
color: var(--primary);
}
-
-
:not(.ML__command) + .ML__command {
- margin-left: .25em;
+ margin-left: 0.25em;
}
-.ML__command + :not(.ML__command) {
- padding-left: .25em;
+.ML__command + :not(.ML__command) {
+ padding-left: 0.25em;
}
-
/* When using smartFence, the anticipated closing fence is displayed
with this style */
.ML__smart-fence__close {
- opacity: .5;
+ opacity: 0.5;
}
/* The element that displays the keys as the user type them */
@@ -596,7 +659,7 @@ with this style */
/*background-color: rgba(97, 97, 200, .95);*/
background: var(--secondary);
border-color: var(--secondary-border);
- box-shadow: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
+ box-shadow: 0 3px 6px rgba(0, 0, 0, 0.16), 0 3px 6px rgba(0, 0, 0, 0.23);
text-align: center;
border-radius: 6px;
padding: 16px;
@@ -613,14 +676,14 @@ with this style */
--keystroke-border: #f7f7f7;
}
@media (prefers-color-scheme: dark) {
- body:not([theme="light"]) .ML__keystroke-caption {
+ body:not([theme='light']) .ML__keystroke-caption {
--keystroke: hsl(var(--hue), 50%, 30%);
--on-keystroke: hsl(0, 0%, 98%);
--keystroke-border: hsl(var(--hue), 50%, 25%);
}
}
-body[theme="dark"] .ML__keystroke-caption {
+body[theme='dark'] .ML__keystroke-caption {
--keystroke: hsl(var(--hue), 50%, 30%);
--on-keystroke: hsl(0, 0%, 98%);
--keystroke-border: hsl(var(--hue), 50%, 25%);
@@ -642,7 +705,7 @@ body[theme="dark"] .ML__keystroke-caption {
position: absolute;
visibility: hidden;
content: attr(data-tooltip);
-
+
display: inline-table;
top: 110%;
@@ -651,12 +714,13 @@ body[theme="dark"] .ML__keystroke-caption {
width: max-content;
max-width: 200px;
padding: 8px 8px;
- background: #616161; // Grey 700
+ background: #616161; // Grey 700
color: #fff;
text-align: center;
z-index: 2;
- box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 1px 5px 0 rgba(0, 0, 0, 0.12), 0 3px 1px -2px rgba(0, 0, 0, 0.2);
+ box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14),
+ 0 1px 5px 0 rgba(0, 0, 0, 0.12), 0 3px 1px -2px rgba(0, 0, 0, 0.2);
border-radius: 2px;
font-family: @system;
@@ -664,7 +728,7 @@ body[theme="dark"] .ML__keystroke-caption {
font-size: 12px;
/* Phone */
- @media only screen and (max-width : 767px) {
+ @media only screen and (max-width: 767px) {
height: 32px;
padding: 4px 16px;
font-size: 14px;
@@ -673,18 +737,17 @@ body[theme="dark"] .ML__keystroke-caption {
opacity: 0;
transform: scale(0.5);
// animation: .150s tooltipFadeOut cubic-bezier(0.4, 0.0, 1, 1) forwards;
- transition: all .150s cubic-bezier(0.4, 0.0, 1, 1);
-
+ transition: all 0.15s cubic-bezier(0.4, 0, 1, 1);
}
}
[data-tooltip]:hover {
position: relative;
&::after {
- visibility: visible; // Visible triggers the animation...
- opacity: 1; // ... but we start fully transparent to
- // give ourselves a delay before showing
- transform: scale(1);
+ visibility: visible; // Visible triggers the animation...
+ opacity: 1; // ... but we start fully transparent to
+ // give ourselves a delay before showing
+ transform: scale(1);
}
}
@@ -697,7 +760,6 @@ body[theme="dark"] .ML__keystroke-caption {
transition-delay: 1s; /* attr(data-delay); Should work. But doesn't. */
}
-
// @keyframes tooltipFadeIn {
// 0% {
// opacity: 0;
@@ -731,17 +793,15 @@ body[theme="dark"] .ML__keystroke-caption {
// }
// }
-
-.can-redo [data-command="\"redo\""] {
+.can-redo [data-command='"redo"'] {
opacity: 1 !important;
}
-.can-undo [data-command="\"undo\""] {
+.can-undo [data-command='"undo"'] {
opacity: 1 !important;
}
-
.ML__keyboard {
- --keyboard-background: rgba(209, 213, 217, .95);
+ --keyboard-background: rgba(209, 213, 217, 0.95);
--keyboard-text: #000;
--keyboard-text-active: var(--primary);
--keyboard-background-border: #ddd;
@@ -757,7 +817,6 @@ body[theme="dark"] .ML__keystroke-caption {
--keycap-modifier-border: #c5c9d0;
--keycap-modifier-border-bottom: #989da6;
-
--keyboard-alternate-background: #fff;
--keyboard-alternate-background-active: #e5e5e5;
--keyboard-alternate-text: #000;
@@ -770,18 +829,23 @@ body[theme="dark"] .ML__keystroke-caption {
padding-top: 5px;
- transform: translate(0, 0);
+ transform: translate(0, 0);
opacity: 0;
visibility: hidden;
// To make the keyboard visible, add the .is-visible class
// This will slide in and fade in the keyboard
- transition: .28s cubic-bezier(0.0, 0.0, 0.2, 1); // Deceleration curve
+ transition: 0.28s cubic-bezier(0, 0, 0.2, 1); // Deceleration curve
transition-property: transform, opacity;
&.is-visible {
- transform: translate(0, -267px);
+ transform: translate(0, -267px);
opacity: 1;
visibility: visible;
- transition-timing-function: cubic-bezier(0.4, 0.0, 1, 1); // Acceleration curve
+ transition-timing-function: cubic-bezier(
+ 0.4,
+ 0,
+ 1,
+ 1
+ ); // Acceleration curve
}
backdrop-filter: grayscale(50%);
@@ -803,10 +867,12 @@ body[theme="dark"] .ML__keystroke-caption {
box-shadow: @shadow2;
.tex {
- font-family: @math_main, "Cambria Math", "Asana Math", OpenSymbol, Symbola, STIX, Times, serif !important;
+ font-family: @math_main, 'Cambria Math', 'Asana Math', OpenSymbol,
+ Symbola, STIX, Times, serif !important;
}
.tex-math {
- font-family: @math_math, "Cambria Math", "Asana Math", OpenSymbol, Symbola, STIX, Times, serif !important;
+ font-family: @math_math, 'Cambria Math', 'Asana Math', OpenSymbol,
+ Symbola, STIX, Times, serif !important;
}
.tt {
font-family: @monospace !important;
@@ -818,7 +884,8 @@ body[theme="dark"] .ML__keystroke-caption {
&.alternate-keys {
visibility: hidden;
max-width: 286px;
- @media only screen and (max-height : 412px) { // 412 is the height of the Google Pixel in landscape mode
+ @media only screen and (max-height: 412px) {
+ // 412 is the height of the Google Pixel in landscape mode
max-width: 320px;
}
@@ -826,17 +893,17 @@ body[theme="dark"] .ML__keystroke-caption {
text-align: center;
border-radius: 6px;
position: fixed;
- bottom: auto; // Override the value from ML__keyboard
- top: 0; // "
- box-sizing: content-box; // "
- transform: none; // "
- z-index: 106; // Above the keyboard (105)
-
+ bottom: auto; // Override the value from ML__keyboard
+ top: 0; // "
+ box-sizing: content-box; // "
+ transform: none; // "
+ z-index: 106; // Above the keyboard (105)
+
display: flex;
flex-direction: row;
justify-content: center;
align-content: center;
-
+
box-shadow: @shadow4;
transition: none;
@@ -851,17 +918,18 @@ body[theme="dark"] .ML__keystroke-caption {
display: flex;
flex-flow: row wrap-reverse;
justify-content: center;
- & > li { // Alternate Keys
+ & > li {
+ // Alternate Keys
display: flex;
flex-flow: column;
align-items: center;
justify-content: center;
font-size: 30px;
-
+
height: 70px;
width: 70px;
- @media only screen and (max-height : 412px) {
+ @media only screen and (max-height: 412px) {
font-size: 24px;
height: 50px;
width: 50px;
@@ -874,7 +942,9 @@ body[theme="dark"] .ML__keystroke-caption {
pointer-events: all;
color: var(--keyboard-alternate-text);
fill: currentColor;
- &:hover, &.pressed, &.active {
+ &:hover,
+ &.pressed,
+ &.active {
box-shadow: @shadow3;
background: var(--keyboard-alternate-background-active);
color: var(--keyboard-text-active);
@@ -891,8 +961,9 @@ body[theme="dark"] .ML__keystroke-caption {
background: var(--keyboard-alternate-background-active);
}
}
- &.box > div, &.box > span {
- border: 1px dashed rgba(0, 0, 0, .24);
+ &.box > div,
+ &.box > span {
+ border: 1px dashed rgba(0, 0, 0, 0.24);
}
// Use to display warning icons, with a SVG icon
.warning {
@@ -905,29 +976,30 @@ body[theme="dark"] .ML__keystroke-caption {
align-items: center;
justify-content: center;
border-radius: 5px;
- &:hover, &.pressed, &.active {
+ &:hover,
+ &.pressed,
+ &.active {
background: red;
}
svg {
width: 50px;
height: 50px;
}
- }
+ }
aside {
font-size: 12px;
line-height: 12px;
- opacity: .78;
+ opacity: 0.78;
}
}
}
}
-
& > div.keyboard-layer {
display: none;
outline: none;
- &.is-visible {
- display: flex;
+ &.is-visible {
+ display: flex;
flex-flow: column;
}
}
@@ -936,23 +1008,23 @@ body[theme="dark"] .ML__keystroke-caption {
display: flex;
flex-flow: row;
justify-content: space-between;
- width: 736px; // Desktop
+ width: 736px; // Desktop
/* Tablet */
- @media only screen and (min-width : 768px) and (max-width : 1024px) {
+ @media only screen and (min-width: 768px) and (max-width: 1024px) {
width: 556px;
}
/* Phone */
- @media only screen and (max-width : 767px) {
+ @media only screen and (max-width: 767px) {
width: 365px;
- max-width: 100vw; // iPhone 5 is 320px
+ max-width: 100vw; // iPhone 5 is 320px
}
-
+
/* Icons for undo/redo, etc. */
svg {
height: 20px;
width: 20px;
}
- @media only screen and (max-width : 767px) {
+ @media only screen and (max-width: 767px) {
svg {
height: 13px;
width: 17px;
@@ -992,23 +1064,28 @@ body[theme="dark"] .ML__keystroke-caption {
box-shadow: none;
border-bottom: 2px solid transparent;
- &.disabled svg, &.disabled:hover svg, &.disabled.pressed svg {
+ &.disabled svg,
+ &.disabled:hover svg,
+ &.disabled.pressed svg {
color: var(--keyboard-text);
- opacity: .2;
+ opacity: 0.2;
}
/* iPhone 5 */
- @media only screen and (max-width : 414px) {
+ @media only screen and (max-width: 414px) {
font-size: 100%;
padding: 0 6px 0 0;
}
/* Phone */
- @media only screen and (max-width : 767px) {
+ @media only screen and (max-width: 767px) {
padding-left: 4px;
padding-right: 4px;
font-size: 90%;
}
- &:hover, &:active, &.pressed, &.active {
+ &:hover,
+ &:active,
+ &.pressed,
+ &.active {
color: var(--keyboard-text-active);
}
&.selected {
@@ -1035,8 +1112,6 @@ body[theme="dark"] .ML__keystroke-caption {
margin: 0 0 3px 0;
padding: 0;
-
-
& > li {
/* Key widths. A standard key is 10 units wide (w10) */
/* The formula for wn = n * w10 / 10 + (n -1) * margin-right */
@@ -1068,8 +1143,12 @@ body[theme="dark"] .ML__keystroke-caption {
margin-right: 0;
}
- &.small {font-size: 16px;}
- &.tt {color: var(--keyboard-text-active);}
+ &.small {
+ font-size: 16px;
+ }
+ &.tt {
+ color: var(--keyboard-text-active);
+ }
/* For the alignment of the text on some modifiers (e.g. shift) */
&.bottom {
@@ -1084,7 +1163,10 @@ body[theme="dark"] .ML__keystroke-caption {
padding-right: 4px;
}
- svg {width: 20px; height: 20px;}
+ svg {
+ width: 20px;
+ height: 20px;
+ }
// Use to display warning icons, with a SVG icon
.warning {
height: 25px;
@@ -1103,7 +1185,7 @@ body[theme="dark"] .ML__keystroke-caption {
width: 16px;
height: 16px;
}
- @media only screen and (max-width : 768px) {
+ @media only screen and (max-width: 768px) {
height: 16px;
width: 16px;
min-height: 16px;
@@ -1113,12 +1195,22 @@ body[theme="dark"] .ML__keystroke-caption {
height: 14px;
}
}
- }
- & > .w0 {width: 0;}
- & > .w5 {width: 16px;}
- & > .w15 {width: 52px;}
- & > .w20 {width: 70px;}
- & > .w50 {width: 178px;}
+ }
+ & > .w0 {
+ width: 0;
+ }
+ & > .w5 {
+ width: 16px;
+ }
+ & > .w15 {
+ width: 52px;
+ }
+ & > .w20 {
+ width: 70px;
+ }
+ & > .w50 {
+ width: 178px;
+ }
/* Extra spacing between two adjacent keys */
&.separator {
background: transparent;
@@ -1127,36 +1219,43 @@ body[theme="dark"] .ML__keystroke-caption {
}
// Only show if there's extra room (up to four more columns)
- @media only screen and (max-width : 560px) {
+ @media only screen and (max-width: 560px) {
&.if-wide {
display: none;
}
}
- &.tex-math {font-size: 25px;}
+ &.tex-math {
+ font-size: 25px;
+ }
// &.tt {font-size: 30px;}
- &:hover, &.pressed {
+ &:hover,
+ &.pressed {
// box-shadow: inset 0 0 1px 1px #8d8f92;
background: var(--keycap-background-active);
color: var(--keyboard-text-active);
}
- &.keycap:active, &.keycap.active, &.action:active, &.action.active {
+ &.keycap:active,
+ &.keycap.active,
+ &.action:active,
+ &.action.active {
transform: translateY(-20px) scale(1.4, 1.4);
z-index: 100;
color: var(--keyboard-text-active);
}
- &.modifier:active, &.modifier.active {
+ &.modifier:active,
+ &.modifier.active {
background: var(--keyboard-text-active);
color: var(--keycap-text-active);
}
- &.action.font-glyph, &.modifier.font-glyph {
+ &.action.font-glyph,
+ &.modifier.font-glyph {
font-size: 18px;
- @media only screen and (max-width : 767px) {
+ @media only screen and (max-width: 767px) {
font-size: 16px;
}
}
-
// Waves effect
position: relative;
overflow: hidden;
@@ -1164,8 +1263,9 @@ body[theme="dark"] .ML__keystroke-caption {
-webkit-tap-highlight-color: transparent;
// z-index: 1;
// transition: .14s cubic-bezier(.4, 0, .2, 1);
- &.fnbutton, &.bigfnbutton {
- @media only screen and (max-width : 767px) {
+ &.fnbutton,
+ &.bigfnbutton {
+ @media only screen and (max-width: 767px) {
font-size: 12px;
}
// width: 60px;
@@ -1173,20 +1273,25 @@ body[theme="dark"] .ML__keystroke-caption {
}
&.bigfnbutton {
font-size: 14px;
- @media only screen and (max-width : 767px) {
+ @media only screen and (max-width: 767px) {
font-size: 9px;
}
}
- &.modifier, &.action {
+ &.modifier,
+ &.action {
background-color: var(--keycap-modifier-background);
border-color: var(--keycap-modifier-border);
border-bottom-color: var(--keycap-modifier-border-bottom);
font-size: 65%;
font-weight: 100;
}
- &.modifier.selected, &.action.selected {
+ &.modifier.selected,
+ &.action.selected {
color: var(--keyboard-text-active);
- &:hover, &:active, &.pressed, &.active {
+ &:hover,
+ &:active,
+ &.pressed,
+ &.active {
color: white;
}
}
@@ -1194,12 +1299,12 @@ body[theme="dark"] .ML__keystroke-caption {
font-size: 80%;
padding-top: 10px;
font-weight: 100;
- }
+ }
small {
color: #555;
- @media only screen and (max-width : 767px) {
+ @media only screen and (max-width: 767px) {
font-size: 9px;
- }
+ }
}
aside {
font-family: @system;
@@ -1207,86 +1312,118 @@ body[theme="dark"] .ML__keystroke-caption {
line-height: 10px;
color: #666;
/* On small screens, don't display */
- @media only screen and (max-width : 767px) {
+ @media only screen and (max-width: 767px) {
display: none;
}
}
- }
-
+ }
}
/* iPhone 5 */
- @media only screen and (max-width : 414px) {
- & > ul {
+ @media only screen and (max-width: 414px) {
+ & > ul {
& > li {
width: 29px;
margin-right: 2px;
}
- & > .w5 { width: 13.5px; }
- & > .w15 { width: 44.5px; }
- & > .w20 { width: 60px; }
- & > .w50 { width: 153px; }
+ & > .w5 {
+ width: 13.5px;
+ }
+ & > .w15 {
+ width: 44.5px;
+ }
+ & > .w20 {
+ width: 60px;
+ }
+ & > .w50 {
+ width: 153px;
+ }
}
}
/* Pixel, iPhone 6,7,8+ */
- @media only screen and (min-width : 415px) and (max-width : 768px) {
- & > ul {
+ @media only screen and (min-width: 415px) and (max-width: 768px) {
+ & > ul {
& > li {
width: 37px;
margin-right: 3px;
}
- & > .w5 { width: 17px; }
- & > .w15 { width: 57px; }
- & > .w20 { width: 77px; }
- & > .w50 { width: 197px; }
+ & > .w5 {
+ width: 17px;
+ }
+ & > .w15 {
+ width: 57px;
+ }
+ & > .w20 {
+ width: 77px;
+ }
+ & > .w50 {
+ width: 197px;
+ }
}
}
/* Tablet size */
- @media only screen and (min-width : 768px) and (max-width : 1024px) {
- & > ul {
- height: 52px;
+ @media only screen and (min-width: 768px) and (max-width: 1024px) {
+ & > ul {
+ height: 52px;
& > li {
height: 52px;
width: 51px;
margin-right: 4px;
}
- & > .w5 { width: 23.5px; }
- & > .w15 { width: 78.5px; }
- & > .w20 { width: 106px; }
- & > .w50 { width: 271px; }
+ & > .w5 {
+ width: 23.5px;
+ }
+ & > .w15 {
+ width: 78.5px;
+ }
+ & > .w20 {
+ width: 106px;
+ }
+ & > .w50 {
+ width: 271px;
+ }
}
}
/* Desktop size */
- @media only screen and (min-width : 1025px) {
- & > ul {
- height: 52px;
+ @media only screen and (min-width: 1025px) {
+ & > ul {
+ height: 52px;
& > li {
height: 52px;
width: 66px;
margin-right: 6px;
}
- & > .modifier, & > .action {
+ & > .modifier,
+ & > .action {
font-size: 80%;
}
- & > .w5 { width: 30px; }
- & > .w15 { width: 102px; }
- & > .w20 { width: 138px; }
- & > .w50 { width: 354px; }
+ & > .w5 {
+ width: 30px;
+ }
+ & > .w15 {
+ width: 102px;
+ }
+ & > .w20 {
+ width: 138px;
+ }
+ & > .w50 {
+ width: 354px;
+ }
}
}
}
}
@media (prefers-color-scheme: dark) {
- body:not([theme="light"]) .ML__keyboard {
+ body:not([theme='light']) .ML__keyboard {
--hue: 206;
- --keyboard-background: hsl(var(--hue),19%,38%);
+ --keyboard-background: hsl(var(--hue), 19%, 38%);
--keyboard-text: #f0f0f0;
--keyboard-text-active: hsl(var(--hue), 100%, 60%);
- --keyboard-background-border: hsl(0,0%,20%);
+ --keyboard-background-border: hsl(0, 0%, 20%);
--keycap-background: hsl(var(--hue), 25%, 39%);
--keycap-background-active: hsl(var(--hue), 35%, 42%);
--keycap-background-border: hsl(var(--hue), 25%, 35%);
--keycap-background-border-bottom: hsl(206, 35%, 40%);
- --keycap-text: hsl(0,0%,81.6%);
+ --keycap-text: hsl(0, 0%, 81.6%);
--keycap-text-active: #000;
--keycap-secondary-text: #fff;
@@ -1294,39 +1431,38 @@ body[theme="dark"] .ML__keystroke-caption {
--keycap-modifier-border: hsl(var(--hue), 35%, 35%);
--keycap-modifier-border-bottom: hsl(var(--hue), 35%, 42%);
- --keyboard-alternate-background: hsl(var(--hue),19%,38%);
- --keyboard-alternate-background-active: hsl(var(--hue),35%,42%);
- --keyboard-alternate-text: hsl(0,0%,82%);
+ --keyboard-alternate-background: hsl(var(--hue), 19%, 38%);
+ --keyboard-alternate-background-active: hsl(var(--hue), 35%, 42%);
+ --keyboard-alternate-text: hsl(0, 0%, 82%);
}
}
- /* Same as the media query, but with a class */
- body[theme="dark"] .ML__keyboard {
- --hue: 206;
- --keyboard-background: hsl(var(--hue),19%,38%);
- --keyboard-text: #f0f0f0;
- --keyboard-text-active: hsl(var(--hue), 100%, 60%);
- --keyboard-background-border: hsl(0,0%,20%);
- --keycap-background: hsl(var(--hue), 25%, 39%);
- --keycap-background-active: hsl(var(--hue), 35%, 42%);
- --keycap-background-border: hsl(var(--hue), 25%, 35%);
- --keycap-background-border-bottom: hsl(206, 35%, 40%);
- --keycap-text: hsl(0,0%,81.6%);
- --keycap-text-active: #000;
- --keycap-secondary-text: #fff;
-
- --keycap-modifier-background: hsl(var(--hue), 35%, 40%);
- --keycap-modifier-border: hsl(var(--hue), 35%, 35%);
- --keycap-modifier-border-bottom: hsl(var(--hue), 35%, 42%);
+/* Same as the media query, but with a class */
+body[theme='dark'] .ML__keyboard {
+ --hue: 206;
+ --keyboard-background: hsl(var(--hue), 19%, 38%);
+ --keyboard-text: #f0f0f0;
+ --keyboard-text-active: hsl(var(--hue), 100%, 60%);
+ --keyboard-background-border: hsl(0, 0%, 20%);
+ --keycap-background: hsl(var(--hue), 25%, 39%);
+ --keycap-background-active: hsl(var(--hue), 35%, 42%);
+ --keycap-background-border: hsl(var(--hue), 25%, 35%);
+ --keycap-background-border-bottom: hsl(206, 35%, 40%);
+ --keycap-text: hsl(0, 0%, 81.6%);
+ --keycap-text-active: #000;
+ --keycap-secondary-text: #fff;
- --keyboard-alternate-background: hsl(var(--hue),19%,38%);
- --keyboard-alternate-background-active: hsl(var(--hue),35%,42%);
- --keyboard-alternate-text: hsl(0,0%,82%);;
- }
+ --keycap-modifier-background: hsl(var(--hue), 35%, 40%);
+ --keycap-modifier-border: hsl(var(--hue), 35%, 35%);
+ --keycap-modifier-border-bottom: hsl(var(--hue), 35%, 42%);
+ --keyboard-alternate-background: hsl(var(--hue), 19%, 38%);
+ --keyboard-alternate-background-active: hsl(var(--hue), 35%, 42%);
+ --keyboard-alternate-text: hsl(0, 0%, 82%);
+}
/* The 'material' theme for the virtual keyboard */
-div.ML__keyboard.material {
- --keyboard-background: rgba(209, 213, 217, .9);
+div.ML__keyboard.material {
+ --keyboard-background: rgba(209, 213, 217, 0.9);
--keyboard-background-border: #ddd;
--keycap-background: transparent;
--keycap-background-active: #cccfd1;
@@ -1343,7 +1479,10 @@ div.ML__keyboard.material {
border-radius: 5px;
box-shadow: @shadow4;
- ul li:hover, ul li:active, ul li.active, ul li.pressed {
+ ul li:hover,
+ ul li:active,
+ ul li.active,
+ ul li.pressed {
border: 1px solid transparent;
background: @material-primary;
color: white;
@@ -1355,7 +1494,10 @@ div.ML__keyboard.material {
& > div > div {
font-size: 16px;
}
- div div:hover, div div:active, div.div.active, div.div.pressed {
+ div div:hover,
+ div div:active,
+ div.div.active,
+ div.div.pressed {
color: @material-primary;
fill: currentColor;
}
@@ -1372,7 +1514,7 @@ div.ML__keyboard.material {
border: 1px solid transparent;
border-radius: 5px;
color: var(--keycap-text);
- fill: currentColor;
+ fill: currentColor;
&.tt {
color: @material-primary;
@@ -1386,7 +1528,10 @@ div.ML__keyboard.material {
height: 20px;
background: #e0e0e0;
- &:hover, &:active, &.active, &.pressed {
+ &:hover,
+ &:active,
+ &.active,
+ &.pressed {
background: #d0d0d0;
box-shadow: none;
transform: none;
@@ -1397,13 +1542,13 @@ div.ML__keyboard.material {
background: var(--keycap-background-active);
box-shadow: none;
}
- &:not([data-key=' ']).pressed,
+ &:not([data-key=' ']).pressed,
&:not([data-key=' ']).active,
- &:not([data-key=' ']):active {
+ &:not([data-key=' ']):active {
background: var(--keyboard-alternate-background);
color: var(--keyboard-alternate-text);
box-shadow: @shadow3;
- @media only screen and (max-width : 767px) {
+ @media only screen and (max-width: 767px) {
box-shadow: @shadow3;
font-size: 10px;
vertical-align: top;
@@ -1417,19 +1562,20 @@ div.ML__keyboard.material {
padding: 2px 0 0 0;
z-index: 100;
}
- @media only screen and (max-width : 414px) {
+ @media only screen and (max-width: 414px) {
width: 16.5px;
}
}
- &:last-child:active,
+ &:last-child:active,
&:last-child.active {
- @media only screen and (max-width : 767px) {
+ @media only screen and (max-width: 767px) {
margin-right: 0;
margin-left: 14px;
}
}
}
- div div.rows ul li.modifier, div div.rows ul li.action {
+ div div.rows ul li.modifier,
+ div div.rows ul li.action {
background: transparent;
border: 0;
color: #869096;
@@ -1442,47 +1588,53 @@ div.ML__keyboard.material {
border-radius: 0;
border-bottom: 2px solid @material-primary;
}
- &:hover, &:active, &.active, &.pressed {
+ &:hover,
+ &:active,
+ &.active,
+ &.pressed {
border: 0;
color: var(--keycap-text);
background: var(--keycap-background-active);
box-shadow: none;
}
}
- div div.rows ul li.fnbutton, div div.rows ul li.bigfnbutton {
+ div div.rows ul li.fnbutton,
+ div div.rows ul li.bigfnbutton {
background: transparent;
border: 0;
// transition: .28s cubic-bezier(.4, 0, .2, 1);
- &.selected, &.selected {
+ &.selected,
+ &.selected {
color: @material-primary;
fill: currentColor;
border-radius: 0;
border-bottom: 2px solid @material-primary;
}
- &:hover, &:active, &.pressed, &.active {
+ &:hover,
+ &:active,
+ &.pressed,
+ &.active {
border: 0;
color: @material-primary;
fill: currentColor;
background: var(--keycap-background-active);
box-shadow: none;
}
-
}
-};
-
+}
@media (prefers-color-scheme: dark) {
- body:not([theme="light"]) div.ML__keyboard.material {
+ body:not([theme='light']) div.ML__keyboard.material {
--hue: 198;
- --keyboard-background: hsl(var(--hue),19%,18%);
+ --keyboard-background: hsl(var(--hue), 19%, 18%);
--keyboard-text: #d4d6d7;
--keyboard-text-active: @material-primary;
- --keyboard-background-border: hsl(0,0%,20%);
+ --keyboard-background-border: hsl(0, 0%, 20%);
--keycap-background: hsl(var(--hue), 25%, 39%);
--keycap-background-active: @material-primary;
--keycap-background-border: transparent;
--keycap-background-border-bottom: transparent;
- --keycap-text: hsl(0,0%,81.6%);
+ --keycap-text: hsl(0, 0%, 81.6%);
--keycap-text-active: #d4d6d7;
--keycap-secondary-text: @material-primary;
@@ -1490,23 +1642,22 @@ div.ML__keyboard.material {
--keycap-modifier-border: hsl(var(--hue), 35%, 35%);
--keycap-modifier-border-bottom: hsl(var(--hue), 35%, 42%);
-
- --keyboard-alternate-background: hsl(var(--hue),8%,2%);
- --keyboard-alternate-background-active: hsl(var(--hue),35%,42%);
- --keyboard-alternate-text: hsl(0,0%,82%);
+ --keyboard-alternate-background: hsl(var(--hue), 8%, 2%);
+ --keyboard-alternate-background-active: hsl(var(--hue), 35%, 42%);
+ --keyboard-alternate-text: hsl(0, 0%, 82%);
}
}
-body[theme="dark"] div.ML__keyboard.material {
+body[theme='dark'] div.ML__keyboard.material {
--hue: 198;
- --keyboard-background: hsl(var(--hue),19%,18%);
+ --keyboard-background: hsl(var(--hue), 19%, 18%);
--keyboard-text: #d4d6d7;
--keyboard-text-active: @material-primary;
- --keyboard-background-border: hsl(0,0%,20%);
+ --keyboard-background-border: hsl(0, 0%, 20%);
--keycap-background: hsl(var(--hue), 25%, 39%);
--keycap-background-active: @material-primary;
--keycap-background-border: transparent;
--keycap-background-border-bottom: transparent;
- --keycap-text: hsl(0,0%,81.6%);
+ --keycap-text: hsl(0, 0%, 81.6%);
--keycap-text-active: #d4d6d7;
--keycap-secondary-text: @material-primary;
@@ -1514,34 +1665,34 @@ body[theme="dark"] div.ML__keyboard.material {
--keycap-modifier-border: hsl(var(--hue), 35%, 35%);
--keycap-modifier-border-bottom: hsl(var(--hue), 35%, 42%);
-
- --keyboard-alternate-background: hsl(var(--hue),8%,2%);
- --keyboard-alternate-background-active: hsl(var(--hue),35%,42%);
- --keyboard-alternate-text: hsl(0,0%,82%);
+ --keyboard-alternate-background: hsl(var(--hue), 8%, 2%);
+ --keyboard-alternate-background-active: hsl(var(--hue), 35%, 42%);
+ --keyboard-alternate-text: hsl(0, 0%, 82%);
}
-
.ML__error {
// Wavy pattern
- background-image: radial-gradient(ellipse at center,
- hsl(341,100%,40%),rgba(0,0,0,0) 70%);
+ background-image: radial-gradient(
+ ellipse at center,
+ hsl(341, 100%, 40%),
+ rgba(0, 0, 0, 0) 70%
+ );
background-repeat: repeat-x;
background-size: 3px 3px;
- background-position:0 98%;
+ background-position: 0 98%;
}
.ML__suggestion {
- opacity: .50;
+ opacity: 0.5;
}
.ML__placeholder {
- opacity: .7;
- padding-left: .5ex;
- padding-right: .5ex;
+ opacity: 0.7;
+ padding-left: 0.5ex;
+ padding-right: 0.5ex;
}
-
.ML__keystroke-caption > span {
min-width: 14px;
/*height: 8px;*/
@@ -1564,10 +1715,8 @@ body[theme="dark"] div.ML__keyboard.material {
// box-shadow: @shadow1;
}
-
-
.ML__virtual-keyboard-toggle.pressed {
- background: hsla(0, 0%, 70%, .5);
+ background: hsla(0, 0%, 70%, 0.5);
}
.ML__virtual-keyboard-toggle:focus {
@@ -1576,22 +1725,24 @@ body[theme="dark"] div.ML__keyboard.material {
border: 2px solid var(--primary);
}
-
-.ML__virtual-keyboard-toggle.active:hover,
+.ML__virtual-keyboard-toggle.active:hover,
.ML__virtual-keyboard-toggle.active {
- background: hsla(0, 0%, 70%, .5);
+ background: hsla(0, 0%, 70%, 0.5);
color: #000;
fill: currentColor;
}
-
div.ML__popover.is-visible {
visibility: visible;
- animation: ML__fade-in cubic-bezier(0.0, 0.0, 0.2, 1) .15s;
+ animation: ML__fade-in cubic-bezier(0, 0, 0.2, 1) 0.15s;
}
@keyframes ML__fade-in {
- from {opacity: 0;}
- to {opacity:1 ;}
+ from {
+ opacity: 0;
+ }
+ to {
+ opacity: 1;
+ }
}
/* The wrapper class for the entire content of the popover panel */
@@ -1607,25 +1758,23 @@ div.ML__popover.is-visible {
margin-left: 8px;
margin-right: 8px;
a {
- color: #5Ea6Fd;
- padding-top: .3em;
- margin-top: .4em;
+ color: #5ea6fd;
+ padding-top: 0.3em;
+ margin-top: 0.4em;
display: block;
&:hover {
- color: #5Ea6Fd;
+ color: #5ea6fd;
text-decoration: underline;
}
}
/* Since the content can be clicked on, provide feedback on hover */
- &:hover,
+ &:hover,
&.pressed,
&.active {
- background: rgba(255, 255, 255, .1);
+ background: rgba(255, 255, 255, 0.1);
}
}
-
-
/* The command inside a popover (inside a ML__popover-content) */
.ML__popover__command {
font-size: 1.6rem;
@@ -1633,7 +1782,7 @@ div.ML__popover.is-visible {
.ML__popover__prev-shortcut {
height: 31px;
- opacity: .1;
+ opacity: 0.1;
cursor: pointer;
margin-left: 8px;
@@ -1642,9 +1791,9 @@ div.ML__popover.is-visible {
padding-bottom: 2px;
}
-.ML__popover__prev-shortcut:hover,
-.ML__popover__next-shortcut:hover{
- opacity: .3;
+.ML__popover__prev-shortcut:hover,
+.ML__popover__next-shortcut:hover {
+ opacity: 0.3;
}
.ML__popover__prev-shortcut.pressed,
@@ -1652,12 +1801,12 @@ div.ML__popover.is-visible {
opacity: 1;
}
-.ML__popover__prev-shortcut.active,
+.ML__popover__prev-shortcut.active,
.ML__popover__next-shortcut.active {
opacity: 1;
}
-.ML__popover__prev-shortcut > span,
+.ML__popover__prev-shortcut > span,
.ML__popover__next-shortcut > span {
padding: 5px;
border-radius: 50%;
@@ -1676,15 +1825,14 @@ div.ML__popover.is-visible {
display: block;
}
-
-.ML__popover__prev-shortcut:hover > span,
+.ML__popover__prev-shortcut:hover > span,
.ML__popover__next-shortcut:hover > span {
- background: rgba(255, 255, 255, .1);
+ background: rgba(255, 255, 255, 0.1);
}
.ML__popover__next-shortcut {
height: 34px;
- opacity: .1;
+ opacity: 0.1;
cursor: pointer;
margin-left: 8px;
@@ -1696,30 +1844,30 @@ div.ML__popover.is-visible {
/* The keyboard shortcuts for a symbol as displayed in the popover */
.ML__popover__shortcut {
font-family: @system;
- font-size: .8em;
- opacity: .7;
+ font-size: 0.8em;
+ opacity: 0.7;
- margin-top: .25em;
- padding-top: .25em;
+ margin-top: 0.25em;
+ padding-top: 0.25em;
}
/* The field in a popover that provides some info about the symbol */
.ML__popover__note {
font-family: @system;
- font-size: .8rem;
- opacity: .7;
+ font-size: 0.8rem;
+ opacity: 0.7;
line-height: 1em;
- padding-left: .5em;
- padding-right: .5em;
- padding-top: .25em;
+ padding-left: 0.5em;
+ padding-right: 0.5em;
+ padding-top: 0.25em;
}
/* Style for the character that joins the modifiers of a keyboard shortcut
(usually a "+" sign)*/
.ML__shortcut-join {
- opacity: .5;
+ opacity: 0.5;
}
/* Styling for an element which is overlaid
diff --git a/dist/mathlive.core.css b/dist/mathlive.core.css
index 45ebf0442..0f3f2a4ec 100644
--- a/dist/mathlive.core.css
+++ b/dist/mathlive.core.css
@@ -1,220 +1 @@
-.ML__mathlive {
- line-height: 0;
- direction: ltr;
- text-align: left;
- text-indent: 0;
- text-rendering: auto;
- font-style: normal;
- font-size-adjust: none;
- letter-spacing: normal;
- word-wrap: normal;
- word-spacing: normal;
- white-space: nowrap;
- display: inline-block;
- text-shadow: none;
- -webkit-user-select: none;
- -moz-user-select: none;
- -ms-user-select: none;
- user-select: none;
- width: -webkit-min-content;
- width: -moz-min-content;
- width: min-content;
- transform: translateZ(0);
-}
-.ML__base {
- display: inline-block;
- position: relative;
- cursor: text;
-}
-.ML__strut,
-.ML__strut--bottom {
- display: inline-block;
- min-height: 1em;
-}
-.ML__caret:after {
- content: '';
- border: none;
- border-radius: 2px;
- border-right: 2px solid var(--caret);
- margin-right: -2px;
- position: relative;
- left: -1px;
- -webkit-animation: ML__caret-blink 1.05s step-end infinite forwards;
- animation: ML__caret-blink 1.05s step-end infinite forwards;
-}
-.ML__text-caret:after {
- content: '';
- border: none;
- border-radius: 1px;
- border-right: 1px solid var(--caret);
- margin-right: -1px;
- position: relative;
- left: 0;
- -webkit-animation: ML__caret-blink 1.05s step-end infinite forwards;
- animation: ML__caret-blink 1.05s step-end infinite forwards;
-}
-.ML__command-caret:after {
- content: '_';
- border: none;
- margin-right: -1ex;
- position: relative;
- color: var(--caret);
- -webkit-animation: ML__caret-command-blink 1.05s step-end infinite forwards;
- animation: ML__caret-command-blink 1.05s step-end infinite forwards;
-}
-.ML__text {
- white-space: pre;
-}
-.ML__focused .ML__text {
- background: hsla(var(--hue), 40%, 50%, 0.1);
-}
-@-webkit-keyframes ML__caret-command-blink {
- 0%,
- to {
- opacity: 1;
- }
- 50% {
- opacity: 0;
- }
-}
-@keyframes ML__caret-command-blink {
- 0%,
- to {
- opacity: 1;
- }
- 50% {
- opacity: 0;
- }
-}
-@-webkit-keyframes ML__caret-blink {
- 0%,
- to {
- border-color: var(--caret);
- }
- 50% {
- border-color: transparent;
- }
-}
-@keyframes ML__caret-blink {
- 0%,
- to {
- border-color: var(--caret);
- }
- 50% {
- border-color: transparent;
- }
-}
-.ML__textarea__textarea {
- transform: scale(0);
- resize: none;
- position: absolute;
- clip: rect(0 0 0 0);
- width: 1px;
- height: 1px;
- font-size: 16px;
-}
-.ML__fieldcontainer {
- display: flex;
- flex-flow: row;
- justify-content: space-between;
- align-items: flex-end;
- min-height: 39px;
- touch-action: none;
- width: 100%;
- --hue: 212;
- --highlight: hsl(var(--hue), 97%, 85%);
- --caret: hsl(var(--hue), 40%, 49%);
- --highlight-inactive: #ccc;
- --primary: hsl(var(--hue), 40%, 50%);
- --secondary: hsl(var(--hue), 19%, 26%);
- --on-secondary: hsl(var(--hue), 19%, 26%);
-}
-@media (prefers-color-scheme: dark) {
- body:not([theme='light']) .ML__fieldcontainer {
- --highlight: hsl(var(--hue), 40%, 49%);
- --highlight-inactive: hsl(var(--hue), 10%, 35%);
- --caret: hsl(var(--hue), 97%, 85%);
- --secondary: hsl(var(--hue), 25%, 35%);
- --on-secondary: #fafafa;
- }
-}
-body[theme='dark'] .ML__fieldcontainer {
- --highlight: hsl(var(--hue), 40%, 49%);
- --highlight-inactive: hsl(var(--hue), 10%, 35%);
- --caret: hsl(var(--hue), 97%, 85%);
- --secondary: hsl(var(--hue), 25%, 35%);
- --on-secondary: #fafafa;
-}
-.ML__fieldcontainer:focus {
- outline: 2px solid var(--primary);
- outline-offset: 3px;
-}
-.ML__fieldcontainer__field {
- align-self: center;
- position: relative;
- overflow: hidden;
- line-height: 0;
- padding: 2px;
- width: 100%;
-}
-.ML__virtual-keyboard-toggle {
- display: flex;
- align-self: center;
- align-items: center;
- flex-shrink: 0;
- flex-direction: column;
- justify-content: center;
- width: 34px;
- height: 34px;
- padding: 0;
- margin-right: 4px;
- cursor: pointer;
- box-sizing: border-box;
- border-radius: 50%;
- border: 1px solid transparent;
- transition: background 0.2s cubic-bezier(0.64, 0.09, 0.08, 1);
- color: var(--primary);
- fill: currentColor;
- background: transparent;
-}
-.ML__virtual-keyboard-toggle:hover {
- background: hsl(var(--hue), 25%, 35%);
- color: #fafafa;
- fill: currentColor;
- border-radius: 50%;
- box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 1px 5px 0 rgba(0, 0, 0, 0.12),
- 0 3px 1px -2px rgba(0, 0, 0, 0.2);
-}
-.ML__popover {
- visibility: hidden;
- min-width: 160px;
- background-color: rgba(97, 97, 97, 0.95);
- color: #fff;
- text-align: center;
- border-radius: 6px;
- position: fixed;
- z-index: 1;
- display: flex;
- flex-direction: column;
- justify-content: center;
- box-shadow: 0 14px 28px rgba(0, 0, 0, 0.25), 0 10px 10px rgba(0, 0, 0, 0.22);
- transition: all 0.2s cubic-bezier(0.64, 0.09, 0.08, 1);
-}
-.ML__popover:after {
- content: '';
- position: absolute;
- top: -5px;
- left: calc(50% - 3px);
- width: 0;
- height: 0;
- border-left: 5px solid transparent;
- border-right: 5px solid transparent;
- font-size: 1rem;
- border-bottom: 5px solid rgba(97, 97, 97, 0.9);
-}
-.reverse-direction:after {
- top: auto;
- bottom: -5px;
- border-top: 5px solid rgba(97, 97, 97, 0.9);
- border-bottom: 0;
-}
+.ML__mathlive{line-height:0;direction:ltr;text-align:left;text-indent:0;text-rendering:auto;font-style:normal;font-size-adjust:none;letter-spacing:normal;word-wrap:normal;word-spacing:normal;white-space:nowrap;display:inline-block;text-shadow:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;width:-webkit-min-content;width:-moz-min-content;width:min-content;transform:translateZ(0)}.ML__base{display:inline-block;position:relative;cursor:text}.ML__strut,.ML__strut--bottom{display:inline-block;min-height:1em}.ML__caret:after{content:"";border:none;border-radius:2px;border-right:2px solid var(--caret);margin-right:-2px;position:relative;left:-1px;-webkit-animation:ML__caret-blink 1.05s step-end infinite forwards;animation:ML__caret-blink 1.05s step-end infinite forwards}.ML__text-caret:after{content:"";border:none;border-radius:1px;border-right:1px solid var(--caret);margin-right:-1px;position:relative;left:0;-webkit-animation:ML__caret-blink 1.05s step-end infinite forwards;animation:ML__caret-blink 1.05s step-end infinite forwards}.ML__command-caret:after{content:"_";border:none;margin-right:-1ex;position:relative;color:var(--caret);-webkit-animation:ML__caret-blink 1.05s step-end infinite forwards;animation:ML__caret-blink 1.05s step-end infinite forwards}.ML__text{line-height:1;white-space:pre}.ML__focused .ML__text{background:hsla(var(--hue),40%,50%,.1)}@-webkit-keyframes ML__caret-blink{0%,to{opacity:1}50%{opacity:0}}@keyframes ML__caret-blink{0%,to{opacity:1}50%{opacity:0}}.ML__textarea__textarea{transform:scale(0);resize:none;position:absolute;clip:rect(0 0 0 0);width:1px;height:1px;font-size:16px}.ML__fieldcontainer{display:flex;flex-flow:row;justify-content:space-between;align-items:flex-end;min-height:39px;touch-action:none;width:100%;--hue:212;--highlight:hsl(var(--hue),97%,85%);--caret:hsl(var(--hue),40%,49%);--highlight-inactive:#ccc;--primary:hsl(var(--hue),40%,50%);--secondary:hsl(var(--hue),19%,26%);--on-secondary:hsl(var(--hue),19%,26%)}@media (prefers-color-scheme:dark){body:not([theme=light]) .ML__fieldcontainer{--highlight:hsl(var(--hue),40%,49%);--highlight-inactive:hsl(var(--hue),10%,35%);--caret:hsl(var(--hue),97%,85%);--secondary:hsl(var(--hue),25%,35%);--on-secondary:#fafafa}}body[theme=dark] .ML__fieldcontainer{--highlight:hsl(var(--hue),40%,49%);--highlight-inactive:hsl(var(--hue),10%,35%);--caret:hsl(var(--hue),97%,85%);--secondary:hsl(var(--hue),25%,35%);--on-secondary:#fafafa}.ML__fieldcontainer:focus{outline:2px solid var(--primary);outline-offset:3px}.ML__fieldcontainer__field{align-self:center;position:relative;overflow:hidden;line-height:0;padding:2px;width:100%}.ML__virtual-keyboard-toggle{display:flex;align-self:center;align-items:center;flex-shrink:0;flex-direction:column;justify-content:center;width:34px;height:34px;padding:0;margin-right:4px;cursor:pointer;box-sizing:border-box;border-radius:50%;border:1px solid transparent;transition:background .2s cubic-bezier(.64,.09,.08,1);color:var(--primary);fill:currentColor;background:transparent}.ML__virtual-keyboard-toggle:hover{background:hsl(var(--hue),25%,35%);color:#fafafa;fill:currentColor;border-radius:50%;box-shadow:0 2px 2px 0 rgba(0,0,0,.14),0 1px 5px 0 rgba(0,0,0,.12),0 3px 1px -2px rgba(0,0,0,.2)}.ML__popover{visibility:hidden;min-width:160px;background-color:rgba(97,97,97,.95);color:#fff;text-align:center;border-radius:6px;position:fixed;z-index:1;display:flex;flex-direction:column;justify-content:center;box-shadow:0 14px 28px rgba(0,0,0,.25),0 10px 10px rgba(0,0,0,.22);transition:all .2s cubic-bezier(.64,.09,.08,1)}.ML__popover:after{content:"";position:absolute;top:-5px;left:calc(50% - 3px);width:0;height:0;border-left:5px solid transparent;border-right:5px solid transparent;font-size:1rem;border-bottom:5px solid rgba(97,97,97,.9)}.reverse-direction:after{top:auto;bottom:-5px;border-top:5px solid rgba(97,97,97,.9);border-bottom:0}
\ No newline at end of file
diff --git a/dist/mathlive.css b/dist/mathlive.css
index 41a8f1a11..42f46755d 100644
--- a/dist/mathlive.css
+++ b/dist/mathlive.css
@@ -1 +1 @@
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.rows>ul>li.right{align-items:flex-end;padding-right:4px}.ML__keyboard div .rows>ul>li svg{width:20px;height:20px}.ML__keyboard div .rows>ul>li .warning{height:25px;width:25px;min-height:25px;min-width:25px;background:#cd0030;color:#fff;border-radius:100%;padding:5px;display:flex;align-items:center;justify-content:center;margin-bottom:-2px}.ML__keyboard div .rows>ul>li .warning svg{width:16px;height:16px}@media only screen and (max-width:768px){.ML__keyboard div .rows>ul>li .warning{height:16px;width:16px;min-height:16px;min-width:16px}.ML__keyboard div .rows>ul>li .warning svg{width:14px;height:14px}}.ML__keyboard div .rows>ul>li>.w0{width:0}.ML__keyboard div .rows>ul>li>.w5{width:16px}.ML__keyboard div .rows>ul>li>.w15{width:52px}.ML__keyboard div .rows>ul>li>.w20{width:70px}.ML__keyboard div .rows>ul>li>.w50{width:178px}.ML__keyboard div .rows>ul>li.separator{background:transparent;border:none;pointer-events:none}@media only screen and (max-width:560px){.ML__keyboard div .rows>ul>li.if-wide{display:none}}.ML__keyboard div .rows>ul>li.tex-math{font-size:25px}.ML__keyboard div .rows>ul>li.pressed,.ML__keyboard div .rows>ul>li:hover{background:var(--keycap-background-active);color:var(--keyboard-text-active)}.ML__keyboard div .rows>ul>li.action.active,.ML__keyboard div .rows>ul>li.action:active,.ML__keyboard div .rows>ul>li.keycap.active,.ML__keyboard div .rows>ul>li.keycap:active{transform:translateY(-20px) scale(1.4);z-index:100;color:var(--keyboard-text-active)}.ML__keyboard div .rows>ul>li.modifier.active,.ML__keyboard div .rows>ul>li.modifier:active{background:var(--keyboard-text-active);color:var(--keycap-text-active)}.ML__keyboard div .rows>ul>li.action.font-glyph,.ML__keyboard div .rows>ul>li.modifier.font-glyph{font-size:18px}@media only screen and (max-width:767px){.ML__keyboard div .rows>ul>li.action.font-glyph,.ML__keyboard div .rows>ul>li.modifier.font-glyph{font-size:16px}}@media only screen and (max-width:767px){.ML__keyboard div .rows>ul>li.bigfnbutton,.ML__keyboard div .rows>ul>li.fnbutton{font-size:12px}}.ML__keyboard div .rows>ul>li.bigfnbutton{font-size:14px}@media only screen and (max-width:767px){.ML__keyboard div .rows>ul>li.bigfnbutton{font-size:9px}}.ML__keyboard div .rows>ul>li.action,.ML__keyboard div .rows>ul>li.modifier{background-color:var(--keycap-modifier-background);border-bottom-color:var(--keycap-modifier-border);border-color:var(--keycap-modifier-border) var(--keycap-modifier-border) var(--keycap-modifier-border-bottom);font-size:65%;font-weight:100}.ML__keyboard div .rows>ul>li.action.selected,.ML__keyboard div .rows>ul>li.modifier.selected{color:var(--keyboard-text-active)}.ML__keyboard div .rows>ul>li.action.selected.active,.ML__keyboard div .rows>ul>li.action.selected.pressed,.ML__keyboard div .rows>ul>li.action.selected:active,.ML__keyboard div .rows>ul>li.action.selected:hover,.ML__keyboard div .rows>ul>li.modifier.selected.active,.ML__keyboard div .rows>ul>li.modifier.selected.pressed,.ML__keyboard div .rows>ul>li.modifier.selected:active,.ML__keyboard div .rows>ul>li.modifier.selected:hover{color:#fff}.ML__keyboard div .rows>ul>li.keycap.w50{font-size:80%;padding-top:10px;font-weight:100}.ML__keyboard div .rows>ul>li small{color:#555}@media only screen and (max-width:767px){.ML__keyboard div .rows>ul>li small{font-size:9px}}.ML__keyboard div .rows>ul>li aside{font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;font-size:10px;line-height:10px;color:#666}@media only screen and (max-width:767px){.ML__keyboard div .rows>ul>li aside{display:none}}@media only screen and (max-width:414px){.ML__keyboard div .rows>ul>li{width:29px;margin-right:2px}.ML__keyboard div .rows>ul>.w5{width:13.5px}.ML__keyboard div .rows>ul>.w15{width:44.5px}.ML__keyboard div .rows>ul>.w20{width:60px}.ML__keyboard div .rows>ul>.w50{width:153px}}@media only screen and (min-width:415px) and (max-width:768px){.ML__keyboard div .rows>ul>li{width:37px;margin-right:3px}.ML__keyboard div .rows>ul>.w5{width:17px}.ML__keyboard div .rows>ul>.w15{width:57px}.ML__keyboard div .rows>ul>.w20{width:77px}.ML__keyboard div .rows>ul>.w50{width:197px}}@media only screen and (min-width:768px) and (max-width:1024px){.ML__keyboard div .rows>ul{height:52px}.ML__keyboard div .rows>ul>li{height:52px;width:51px;margin-right:4px}.ML__keyboard div .rows>ul>.w5{width:23.5px}.ML__keyboard div .rows>ul>.w15{width:78.5px}.ML__keyboard div .rows>ul>.w20{width:106px}.ML__keyboard div .rows>ul>.w50{width:271px}}@media only screen and (min-width:1025px){.ML__keyboard div .rows>ul{height:52px}.ML__keyboard div .rows>ul>li{height:52px;width:66px;margin-right:6px}.ML__keyboard div .rows>ul>.action,.ML__keyboard div .rows>ul>.modifier{font-size:80%}.ML__keyboard div .rows>ul>.w5{width:30px}.ML__keyboard div .rows>ul>.w15{width:102px}.ML__keyboard div .rows>ul>.w20{width:138px}.ML__keyboard div .rows>ul>.w50{width:354px}}@media (prefers-color-scheme:dark){body:not([theme=light]) .ML__keyboard{--hue:206;--keyboard-background:hsl(var(--hue),19%,38%);--keyboard-text:#f0f0f0;--keyboard-text-active:hsl(var(--hue),100%,60%);--keyboard-background-border:#333;--keycap-background:hsl(var(--hue),25%,39%);--keycap-background-active:hsl(var(--hue),35%,42%);--keycap-background-border:hsl(var(--hue),25%,35%);--keycap-background-border-bottom:#426b8a;--keycap-text:#d0d0d0;--keycap-text-active:#000;--keycap-secondary-text:#fff;--keycap-modifier-background:hsl(var(--hue),35%,40%);--keycap-modifier-border:hsl(var(--hue),35%,35%);--keycap-modifier-border-bottom:hsl(var(--hue),35%,42%);--keyboard-alternate-background:hsl(var(--hue),19%,38%);--keyboard-alternate-background-active:hsl(var(--hue),35%,42%);--keyboard-alternate-text:#d1d1d1}}body[theme=dark] .ML__keyboard{--hue:206;--keyboard-background:hsl(var(--hue),19%,38%);--keyboard-text:#f0f0f0;--keyboard-text-active:hsl(var(--hue),100%,60%);--keyboard-background-border:#333;--keycap-background:hsl(var(--hue),25%,39%);--keycap-background-active:hsl(var(--hue),35%,42%);--keycap-background-border:hsl(var(--hue),25%,35%);--keycap-background-border-bottom:#426b8a;--keycap-text:#d0d0d0;--keycap-text-active:#000;--keycap-secondary-text:#fff;--keycap-modifier-background:hsl(var(--hue),35%,40%);--keycap-modifier-border:hsl(var(--hue),35%,35%);--keycap-modifier-border-bottom:hsl(var(--hue),35%,42%);--keyboard-alternate-background:hsl(var(--hue),19%,38%);--keyboard-alternate-background-active:hsl(var(--hue),35%,42%);--keyboard-alternate-text:#d1d1d1}div.ML__keyboard.material{--keyboard-background:rgba(209,213,217,0.9);--keyboard-background-border:#ddd;--keycap-background:transparent;--keycap-background-active:#cccfd1;--keycap-background-border:transparent;--keyboard-alternate-background:#efefef;--keyboard-alternate-text:#000;font-family:Roboto,sans-serif}div.ML__keyboard.material.alternate-keys{background:var(--keyboard-alternate-background);border:1px solid transparent;border-radius:5px;box-shadow:0 14px 28px rgba(0,0,0,.25),0 10px 10px rgba(0,0,0,.22)}div.ML__keyboard.material.alternate-keys ul li.active,div.ML__keyboard.material.alternate-keys ul li.pressed,div.ML__keyboard.material.alternate-keys ul li:active,div.ML__keyboard.material.alternate-keys ul li:hover{border:1px solid transparent;background:#5f97fc;color:#fff;fill:currentColor}div.ML__keyboard.material .keyboard-toolbar>div>div{font-size:16px}div.ML__keyboard.material .keyboard-toolbar div.div.active,div.ML__keyboard.material .keyboard-toolbar div.div.pressed,div.ML__keyboard.material .keyboard-toolbar div div:active,div.ML__keyboard.material .keyboard-toolbar div div:hover{color:#5f97fc;fill:currentColor}div.ML__keyboard.material .keyboard-toolbar>div>.selected{color:#5f97fc;fill:currentColor;border-bottom:2px solid #5f97fc;margin-bottom:8px;padding-bottom:0}div.ML__keyboard.material div>.rows>ul>.keycap{background:transparent;border:1px solid transparent;border-radius:5px;color:var(--keycap-text);fill:currentColor;transition:none}div.ML__keyboard.material div>.rows>ul>.keycap.tt{color:#5f97fc}div.ML__keyboard.material div>.rows>ul>.keycap[data-key=" "]{margin-top:10px;margin-bottom:10px;height:20px;background:#e0e0e0}div.ML__keyboard.material div>.rows>ul>.keycap[data-key=" "].active,div.ML__keyboard.material div>.rows>ul>.keycap[data-key=" "].pressed,div.ML__keyboard.material div>.rows>ul>.keycap[data-key=" "]:active,div.ML__keyboard.material div>.rows>ul>.keycap[data-key=" "]:hover{background:#d0d0d0;box-shadow:none;transform:none}div.ML__keyboard.material div>.rows>ul>.keycap:not([data-key=" "]):hover{border:1px solid transparent;background:var(--keycap-background-active);box-shadow:none}div.ML__keyboard.material div>.rows>ul>.keycap:not([data-key=" "]).active,div.ML__keyboard.material div>.rows>ul>.keycap:not([data-key=" "]).pressed,div.ML__keyboard.material div>.rows>ul>.keycap:not([data-key=" "]):active{background:var(--keyboard-alternate-background);color:var(--keyboard-alternate-text);box-shadow:0 10px 20px rgba(0,0,0,.19),0 6px 6px rgba(0,0,0,.23)}@media only screen and (max-width:767px){div.ML__keyboard.material div>.rows>ul>.keycap:not([data-key=" "]).active,div.ML__keyboard.material div>.rows>ul>.keycap:not([data-key=" "]).pressed,div.ML__keyboard.material div>.rows>ul>.keycap:not([data-key=" "]):active{box-shadow:0 10px 20px rgba(0,0,0,.19),0 6px 6px rgba(0,0,0,.23);font-size:10px;vertical-align:top;width:19.5px;margin-right:10px;margin-left:10px;transform:translateY(-20px) scale(2);transition:none;justify-content:flex-start;padding:2px 0 0;z-index:100}}@media only screen and (max-width:414px){div.ML__keyboard.material div>.rows>ul>.keycap:not([data-key=" "]).active,div.ML__keyboard.material div>.rows>ul>.keycap:not([data-key=" "]).pressed,div.ML__keyboard.material div>.rows>ul>.keycap:not([data-key=" "]):active{width:16.5px}}@media only screen and (max-width:767px){div.ML__keyboard.material div>.rows>ul>.keycap:last-child.active,div.ML__keyboard.material div>.rows>ul>.keycap:last-child:active{margin-right:0;margin-left:14px}}div.ML__keyboard.material div div.rows ul li.action,div.ML__keyboard.material div div.rows ul li.modifier{background:transparent;border:0;color:#869096;fill:currentColor;font-size:16px;transition:none}div.ML__keyboard.material div div.rows ul li.action.selected,div.ML__keyboard.material div div.rows ul li.modifier.selected{color:#5f97fc;border-radius:0;border-bottom:2px solid #5f97fc}div.ML__keyboard.material div div.rows ul li.action.active,div.ML__keyboard.material div div.rows ul li.action.pressed,div.ML__keyboard.material div div.rows ul li.action:active,div.ML__keyboard.material div div.rows ul li.action:hover,div.ML__keyboard.material div div.rows ul li.modifier.active,div.ML__keyboard.material div div.rows ul li.modifier.pressed,div.ML__keyboard.material div div.rows ul li.modifier:active,div.ML__keyboard.material div div.rows ul li.modifier:hover{border:0;color:var(--keycap-text);background:var(--keycap-background-active);box-shadow:none}div.ML__keyboard.material div div.rows ul li.bigfnbutton,div.ML__keyboard.material div div.rows ul li.fnbutton{background:transparent;border:0}div.ML__keyboard.material div div.rows ul li.bigfnbutton.selected,div.ML__keyboard.material div div.rows ul li.fnbutton.selected{color:#5f97fc;fill:currentColor;border-radius:0;border-bottom:2px solid #5f97fc}div.ML__keyboard.material div div.rows ul li.bigfnbutton.active,div.ML__keyboard.material div div.rows ul li.bigfnbutton.pressed,div.ML__keyboard.material div div.rows ul li.bigfnbutton:active,div.ML__keyboard.material div div.rows ul li.bigfnbutton:hover,div.ML__keyboard.material div div.rows ul li.fnbutton.active,div.ML__keyboard.material div div.rows ul li.fnbutton.pressed,div.ML__keyboard.material div div.rows ul li.fnbutton:active,div.ML__keyboard.material div div.rows ul li.fnbutton:hover{border:0;color:#5f97fc;fill:currentColor;background:var(--keycap-background-active);box-shadow:none}@media (prefers-color-scheme:dark){body:not([theme=light]) div.ML__keyboard.material{--hue:198;--keyboard-background:hsl(var(--hue),19%,18%);--keyboard-text:#d4d6d7;--keyboard-text-active:#5f97fc;--keyboard-background-border:#333;--keycap-background:hsl(var(--hue),25%,39%);--keycap-background-active:#5f97fc;--keycap-background-border:transparent;--keycap-background-border-bottom:transparent;--keycap-text:#d0d0d0;--keycap-text-active:#d4d6d7;--keycap-secondary-text:#5f97fc;--keycap-modifier-background:hsl(var(--hue),35%,40%);--keycap-modifier-border:hsl(var(--hue),35%,35%);--keycap-modifier-border-bottom:hsl(var(--hue),35%,42%);--keyboard-alternate-background:hsl(var(--hue),8%,2%);--keyboard-alternate-background-active:hsl(var(--hue),35%,42%);--keyboard-alternate-text:#d1d1d1}}body[theme=dark] div.ML__keyboard.material{--hue:198;--keyboard-background:hsl(var(--hue),19%,18%);--keyboard-text:#d4d6d7;--keyboard-text-active:#5f97fc;--keyboard-background-border:#333;--keycap-background:hsl(var(--hue),25%,39%);--keycap-background-active:#5f97fc;--keycap-background-border:transparent;--keycap-background-border-bottom:transparent;--keycap-text:#d0d0d0;--keycap-text-active:#d4d6d7;--keycap-secondary-text:#5f97fc;--keycap-modifier-background:hsl(var(--hue),35%,40%);--keycap-modifier-border:hsl(var(--hue),35%,35%);--keycap-modifier-border-bottom:hsl(var(--hue),35%,42%);--keyboard-alternate-background:hsl(var(--hue),8%,2%);--keyboard-alternate-background-active:hsl(var(--hue),35%,42%);--keyboard-alternate-text:#d1d1d1}.ML__error{background-image:radial-gradient(ellipse at center,#cc0041,transparent 70%);background-repeat:repeat-x;background-size:3px 3px;background-position:0 98%}.ML__suggestion{opacity:.5}.ML__placeholder{opacity:.7;padding-left:.5ex;padding-right:.5ex}.ML__keystroke-caption>span{min-width:14px;margin:0 8px 0 0;padding:4px;background-color:var(--keystroke);color:var(--on-keystroke);fill:currentColor;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;font-size:1em;border-radius:6px;border:2px solid var(--keystroke-border)}.ML__virtual-keyboard-toggle.pressed{background:hsla(0,0%,70%,.5)}.ML__virtual-keyboard-toggle:focus{outline:none;border-radius:50%;border:2px solid var(--primary)}.ML__virtual-keyboard-toggle.active,.ML__virtual-keyboard-toggle.active:hover{background:hsla(0,0%,70%,.5);color:#000;fill:currentColor}div.ML__popover.is-visible{visibility:visible;-webkit-animation:ML__fade-in .15s cubic-bezier(0,0,.2,1);animation:ML__fade-in .15s cubic-bezier(0,0,.2,1)}@-webkit-keyframes ML__fade-in{0%{opacity:0}to{opacity:1}}@keyframes ML__fade-in{0%{opacity:0}to{opacity:1}}.ML__popover__content{border-radius:6px;padding:2px;cursor:pointer;min-height:100px;display:flex;flex-direction:column;justify-content:center;margin-left:8px;margin-right:8px}.ML__popover__content a{color:#5ea6fd;padding-top:.3em;margin-top:.4em;display:block}.ML__popover__content a:hover{color:#5ea6fd;text-decoration:underline}.ML__popover__content.active,.ML__popover__content.pressed,.ML__popover__content:hover{background:hsla(0,0%,100%,.1)}.ML__popover__command{font-size:1.6rem}.ML__popover__prev-shortcut{height:31px;opacity:.1;cursor:pointer;margin-left:8px;margin-right:8px;padding-top:4px;padding-bottom:2px}.ML__popover__next-shortcut:hover,.ML__popover__prev-shortcut:hover{opacity:.3}.ML__popover__next-shortcut.active,.ML__popover__next-shortcut.pressed,.ML__popover__prev-shortcut.active,.ML__popover__prev-shortcut.pressed{opacity:1}.ML__popover__next-shortcut>span,.ML__popover__prev-shortcut>span{padding:5px;border-radius:50%;width:20px;height:20px;display:inline-block}.ML__popover__prev-shortcut>span>span{margin-top:-2px;display:block}.ML__popover__next-shortcut>span>span{margin-top:2px;display:block}.ML__popover__next-shortcut:hover>span,.ML__popover__prev-shortcut:hover>span{background:hsla(0,0%,100%,.1)}.ML__popover__next-shortcut{height:34px;opacity:.1;cursor:pointer;margin-left:8px;margin-right:8px;padding-top:2px;padding-bottom:4px}.ML__popover__shortcut{font-size:.8em;margin-top:.25em}.ML__popover__note,.ML__popover__shortcut{font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;opacity:.7;padding-top:.25em}.ML__popover__note{font-size:.8rem;line-height:1em;padding-left:.5em;padding-right:.5em}.ML__shortcut-join{opacity:.5}.ML__scroller{position:fixed;z-index:1;top:0;height:100vh;width:200px}
\ No newline at end of file
diff --git a/dist/mathlive.d.ts b/dist/mathlive.d.ts
index 0a3397f5f..499bc3641 100644
--- a/dist/mathlive.d.ts
+++ b/dist/mathlive.d.ts
@@ -38,6 +38,7 @@ declare type MathFieldCallback = (mathfield: MathField) => void;
@property {boolean} keypressVibration?
@property {string} keypressSound?
@property {string} plonkSound?
+ @property {boolean} readOnly?
@property {"mathlive" | "sre"} textToSpeechRules?
@property {"ssml" | "mac"} textToSpeechMarkup?
@property {object} textToSpeechRulesOptions?
@@ -99,6 +100,7 @@ declare type MathFieldConfig = {
keypressVibration?: boolean;
keypressSound?: string;
plonkSound?: string;
+ readOnly?: boolean;
textToSpeechRules?: "mathlive" | "sre";
textToSpeechMarkup?: "ssml" | "mac";
textToSpeechRulesOptions?: any;
diff --git a/dist/mathlive.js b/dist/mathlive.js
index 2ad64bfd2..f0624ebd6 100644
--- a/dist/mathlive.js
+++ b/dist/mathlive.js
@@ -1,21029 +1 @@
-var global, factory;
-(global = this),
- (factory = function() {
- function t(t, e) {
- e = e || 0;
- const i = t.charCodeAt(e);
- if (55296 <= i && i <= 56319 && e < t.length - 1) {
- const s = i,
- a = t.charCodeAt(e + 1);
- return 56320 <= a && a <= 57343
- ? 1024 * (s - 55296) + (a - 56320) + 65536
- : s;
- }
- if (56320 <= i && i <= 57343 && e >= 1) {
- const s = t.charCodeAt(e - 1),
- a = i;
- return 55296 <= s && s <= 56319
- ? 1024 * (s - 55296) + (a - 56320) + 65536
- : a;
- }
- return i;
- }
- function e(e, s) {
- if ((s = s || 0) < 0) return 0;
- if (s >= e.length - 1) return e.length;
- let a = i(t(e, s));
- for (let r = s + 1; r < e.length; r++) {
- if (
- 55296 <= e.charCodeAt(r - 1) &&
- e.charCodeAt(r - 1) <= 56319 &&
- 56320 <= e.charCodeAt(r) &&
- e.charCodeAt(r) <= 57343
- )
- continue;
- const s = i(t(e, r));
- if (
- ((n = s),
- !(
- (11 === (o = a) && 12 === n) ||
- (3 === o && 11 === n) ||
- (11 === o && 3 === n) ||
- (0 === o && 1 === n) ||
- (2 !== o &&
- 0 !== o &&
- 1 !== o &&
- 2 !== n &&
- 0 !== n &&
- 1 !== n &&
- ((6 === o &&
- (6 === n || 7 === n || 9 === n || 10 === n)) ||
- !(
- (9 !== o && 7 !== o) ||
- (7 !== n && 8 !== n)
- ) ||
- ((10 === o || 8 === o) && 8 === n) ||
- (4 === o && 4 === n) ||
- 3 === n ||
- 5 === n))
- ))
- )
- return r;
- a = s;
- }
- var o, n;
- return e.length;
- }
- function i(t) {
- return 13 === t
- ? 0
- : 10 === t
- ? 1
- : (0 <= t && t <= 9) ||
- (11 <= t && t <= 12) ||
- (14 <= t && t <= 31) ||
- (127 <= t && t <= 159) ||
- 173 === t ||
- (1536 <= t && t <= 1541) ||
- 1564 === t ||
- 1757 === t ||
- 1807 === t ||
- 6158 === t ||
- 8203 === t ||
- (8206 <= t && t <= 8207) ||
- 8232 === t ||
- 8233 === t ||
- (8234 <= t && t <= 8238) ||
- (8288 <= t && t <= 8292) ||
- 8293 === t ||
- (8294 <= t && t <= 8303) ||
- (55296 <= t && t <= 57343) ||
- 65279 === t ||
- (65520 <= t && t <= 65528) ||
- (65529 <= t && t <= 65531) ||
- 69821 === t ||
- (113824 <= t && t <= 113827) ||
- (119155 <= t && t <= 119162) ||
- 917504 === t ||
- 917505 === t ||
- (917506 <= t && t <= 917535) ||
- (917536 <= t && t <= 917631) ||
- (917632 <= t && t <= 917759) ||
- (918e3 <= t && t <= 921599)
- ? 2
- : (768 <= t && t <= 879) ||
- (1155 <= t && t <= 1159) ||
- (1160 <= t && t <= 1161) ||
- (1425 <= t && t <= 1469) ||
- 1471 === t ||
- (1473 <= t && t <= 1474) ||
- (1476 <= t && t <= 1477) ||
- 1479 === t ||
- (1552 <= t && t <= 1562) ||
- (1611 <= t && t <= 1631) ||
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- (1759 <= t && t <= 1764) ||
- (1767 <= t && t <= 1768) ||
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- (1840 <= t && t <= 1866) ||
- (1958 <= t && t <= 1968) ||
- (2027 <= t && t <= 2035) ||
- (2070 <= t && t <= 2073) ||
- (2075 <= t && t <= 2083) ||
- (2085 <= t && t <= 2087) ||
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- (2137 <= t && t <= 2139) ||
- (2275 <= t && t <= 2306) ||
- 2362 === t ||
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- 2381 === t ||
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- (2402 <= t && t <= 2403) ||
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- (3157 <= t && t <= 3158) ||
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- 43713 === t ||
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- 43766 === t ||
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- (65056 <= t && t <= 65071) ||
- (65438 <= t && t <= 65439) ||
- 66045 === t ||
- 66272 === t ||
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- (68097 <= t && t <= 68099) ||
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- (68108 <= t && t <= 68111) ||
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- 70003 === t ||
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- (70191 <= t && t <= 70193) ||
- 70196 === t ||
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- 70460 === t ||
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- 71087 === t ||
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- (71132 <= t && t <= 71133) ||
- (71219 <= t && t <= 71226) ||
- 71229 === t ||
- (71231 <= t && t <= 71232) ||
- 71339 === t ||
- 71341 === t ||
- (71344 <= t && t <= 71349) ||
- 71351 === t ||
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- (71458 <= t && t <= 71461) ||
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- (92976 <= t && t <= 92982) ||
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- (113821 <= t && t <= 113822) ||
- 119141 === t ||
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- (119362 <= t && t <= 119364) ||
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- 121461 === t ||
- 121476 === t ||
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- (121505 <= t && t <= 121519) ||
- (125136 <= t && t <= 125142) ||
- (917760 <= t && t <= 917999)
- ? 3
- : 127462 <= t && t <= 127487
- ? 4
- : 127995 <= t && t <= 127999
- ? 12
- : 2307 === t ||
- 2363 === t ||
- (2366 <= t && t <= 2368) ||
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- 2563 === t ||
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- (2891 <= t && t <= 2892) ||
- 3007 === t ||
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- 3262 === t ||
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- 3635 === t ||
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- 4228 === t ||
- 6070 === t ||
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- (6087 <= t && t <= 6088) ||
- (6435 <= t && t <= 6438) ||
- (6441 <= t && t <= 6443) ||
- (6448 <= t && t <= 6449) ||
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- (6681 <= t && t <= 6682) ||
- 6741 === t ||
- 6743 === t ||
- (6765 <= t && t <= 6770) ||
- 6916 === t ||
- 6965 === t ||
- 6971 === t ||
- (6973 <= t && t <= 6977) ||
- (6979 <= t && t <= 6980) ||
- 7042 === t ||
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- 7082 === t ||
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- 7150 === t ||
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- (7204 <= t && t <= 7211) ||
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- 43047 === t ||
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- 43395 === t ||
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- (43571 <= t && t <= 43572) ||
- 43597 === t ||
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- 44012 === t ||
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- (69815 <= t && t <= 69816) ||
- 69932 === t ||
- 70018 === t ||
- (70067 <= t && t <= 70069) ||
- (70079 <= t && t <= 70080) ||
- (70188 <= t && t <= 70190) ||
- (70194 <= t && t <= 70195) ||
- 70197 === t ||
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- (70402 <= t && t <= 70403) ||
- 70463 === t ||
- (70465 <= t && t <= 70468) ||
- (70471 <= t && t <= 70472) ||
- (70475 <= t && t <= 70477) ||
- (70498 <= t && t <= 70499) ||
- (70833 <= t && t <= 70834) ||
- 70841 === t ||
- (70843 <= t && t <= 70844) ||
- 70846 === t ||
- 70849 === t ||
- (71088 <= t && t <= 71089) ||
- (71096 <= t && t <= 71099) ||
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- (71227 <= t && t <= 71228) ||
- 71230 === t ||
- 71340 === t ||
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- 71350 === t ||
- (71456 <= t && t <= 71457) ||
- 71462 === t ||
- (94033 <= t && t <= 94078) ||
- 119142 === t ||
- 119149 === t
- ? 5
- : (4352 <= t && t <= 4447) || (43360 <= t && t <= 43388)
- ? 6
- : (4448 <= t && t <= 4519) || (55216 <= t && t <= 55238)
- ? 7
- : (4520 <= t && t <= 4607) || (55243 <= t && t <= 55291)
- ? 8
- : 44032 === t ||
- 44060 === t ||
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- 52712 === t ||
- 52740 === t ||
- 52768 === t ||
- 52796 === t ||
- 52824 === t ||
- 52852 === t ||
- 52880 === t ||
- 52908 === t ||
- 52936 === t ||
- 52964 === t ||
- 52992 === t ||
- 53020 === t ||
- 53048 === t ||
- 53076 === t ||
- 53104 === t ||
- 53132 === t ||
- 53160 === t ||
- 53188 === t ||
- 53216 === t ||
- 53244 === t ||
- 53272 === t ||
- 53300 === t ||
- 53328 === t ||
- 53356 === t ||
- 53384 === t ||
- 53412 === t ||
- 53440 === t ||
- 53468 === t ||
- 53496 === t ||
- 53524 === t ||
- 53552 === t ||
- 53580 === t ||
- 53608 === t ||
- 53636 === t ||
- 53664 === t ||
- 53692 === t ||
- 53720 === t ||
- 53748 === t ||
- 53776 === t ||
- 53804 === t ||
- 53832 === t ||
- 53860 === t ||
- 53888 === t ||
- 53916 === t ||
- 53944 === t ||
- 53972 === t ||
- 54e3 === t ||
- 54028 === t ||
- 54056 === t ||
- 54084 === t ||
- 54112 === t ||
- 54140 === t ||
- 54168 === t ||
- 54196 === t ||
- 54224 === t ||
- 54252 === t ||
- 54280 === t ||
- 54308 === t ||
- 54336 === t ||
- 54364 === t ||
- 54392 === t ||
- 54420 === t ||
- 54448 === t ||
- 54476 === t ||
- 54504 === t ||
- 54532 === t ||
- 54560 === t ||
- 54588 === t ||
- 54616 === t ||
- 54644 === t ||
- 54672 === t ||
- 54700 === t ||
- 54728 === t ||
- 54756 === t ||
- 54784 === t ||
- 54812 === t ||
- 54840 === t ||
- 54868 === t ||
- 54896 === t ||
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- 54952 === t ||
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- 55008 === t ||
- 55036 === t ||
- 55064 === t ||
- 55092 === t ||
- 55120 === t ||
- 55148 === t ||
- 55176 === t
- ? 9
- : (44033 <= t && t <= 44059) ||
- (44061 <= t && t <= 44087) ||
- (44089 <= t && t <= 44115) ||
- (44117 <= t && t <= 44143) ||
- (44145 <= t && t <= 44171) ||
- (44173 <= t && t <= 44199) ||
- (44201 <= t && t <= 44227) ||
- (44229 <= t && t <= 44255) ||
- (44257 <= t && t <= 44283) ||
- (44285 <= t && t <= 44311) ||
- (44313 <= t && t <= 44339) ||
- (44341 <= t && t <= 44367) ||
- (44369 <= t && t <= 44395) ||
- (44397 <= t && t <= 44423) ||
- (44425 <= t && t <= 44451) ||
- (44453 <= t && t <= 44479) ||
- (44481 <= t && t <= 44507) ||
- (44509 <= t && t <= 44535) ||
- (44537 <= t && t <= 44563) ||
- (44565 <= t && t <= 44591) ||
- (44593 <= t && t <= 44619) ||
- (44621 <= t && t <= 44647) ||
- (44649 <= t && t <= 44675) ||
- (44677 <= t && t <= 44703) ||
- (44705 <= t && t <= 44731) ||
- (44733 <= t && t <= 44759) ||
- (44761 <= t && t <= 44787) ||
- (44789 <= t && t <= 44815) ||
- (44817 <= t && t <= 44843) ||
- (44845 <= t && t <= 44871) ||
- (44873 <= t && t <= 44899) ||
- (44901 <= t && t <= 44927) ||
- (44929 <= t && t <= 44955) ||
- (44957 <= t && t <= 44983) ||
- (44985 <= t && t <= 45011) ||
- (45013 <= t && t <= 45039) ||
- (45041 <= t && t <= 45067) ||
- (45069 <= t && t <= 45095) ||
- (45097 <= t && t <= 45123) ||
- (45125 <= t && t <= 45151) ||
- (45153 <= t && t <= 45179) ||
- (45181 <= t && t <= 45207) ||
- (45209 <= t && t <= 45235) ||
- (45237 <= t && t <= 45263) ||
- (45265 <= t && t <= 45291) ||
- (45293 <= t && t <= 45319) ||
- (45321 <= t && t <= 45347) ||
- (45349 <= t && t <= 45375) ||
- (45377 <= t && t <= 45403) ||
- (45405 <= t && t <= 45431) ||
- (45433 <= t && t <= 45459) ||
- (45461 <= t && t <= 45487) ||
- (45489 <= t && t <= 45515) ||
- (45517 <= t && t <= 45543) ||
- (45545 <= t && t <= 45571) ||
- (45573 <= t && t <= 45599) ||
- (45601 <= t && t <= 45627) ||
- (45629 <= t && t <= 45655) ||
- (45657 <= t && t <= 45683) ||
- (45685 <= t && t <= 45711) ||
- (45713 <= t && t <= 45739) ||
- (45741 <= t && t <= 45767) ||
- (45769 <= t && t <= 45795) ||
- (45797 <= t && t <= 45823) ||
- (45825 <= t && t <= 45851) ||
- (45853 <= t && t <= 45879) ||
- (45881 <= t && t <= 45907) ||
- (45909 <= t && t <= 45935) ||
- (45937 <= t && t <= 45963) ||
- (45965 <= t && t <= 45991) ||
- (45993 <= t && t <= 46019) ||
- (46021 <= t && t <= 46047) ||
- (46049 <= t && t <= 46075) ||
- (46077 <= t && t <= 46103) ||
- (46105 <= t && t <= 46131) ||
- (46133 <= t && t <= 46159) ||
- (46161 <= t && t <= 46187) ||
- (46189 <= t && t <= 46215) ||
- (46217 <= t && t <= 46243) ||
- (46245 <= t && t <= 46271) ||
- (46273 <= t && t <= 46299) ||
- (46301 <= t && t <= 46327) ||
- (46329 <= t && t <= 46355) ||
- (46357 <= t && t <= 46383) ||
- (46385 <= t && t <= 46411) ||
- (46413 <= t && t <= 46439) ||
- (46441 <= t && t <= 46467) ||
- (46469 <= t && t <= 46495) ||
- (46497 <= t && t <= 46523) ||
- (46525 <= t && t <= 46551) ||
- (46553 <= t && t <= 46579) ||
- (46581 <= t && t <= 46607) ||
- (46609 <= t && t <= 46635) ||
- (46637 <= t && t <= 46663) ||
- (46665 <= t && t <= 46691) ||
- (46693 <= t && t <= 46719) ||
- (46721 <= t && t <= 46747) ||
- (46749 <= t && t <= 46775) ||
- (46777 <= t && t <= 46803) ||
- (46805 <= t && t <= 46831) ||
- (46833 <= t && t <= 46859) ||
- (46861 <= t && t <= 46887) ||
- (46889 <= t && t <= 46915) ||
- (46917 <= t && t <= 46943) ||
- (46945 <= t && t <= 46971) ||
- (46973 <= t && t <= 46999) ||
- (47001 <= t && t <= 47027) ||
- (47029 <= t && t <= 47055) ||
- (47057 <= t && t <= 47083) ||
- (47085 <= t && t <= 47111) ||
- (47113 <= t && t <= 47139) ||
- (47141 <= t && t <= 47167) ||
- (47169 <= t && t <= 47195) ||
- (47197 <= t && t <= 47223) ||
- (47225 <= t && t <= 47251) ||
- (47253 <= t && t <= 47279) ||
- (47281 <= t && t <= 47307) ||
- (47309 <= t && t <= 47335) ||
- (47337 <= t && t <= 47363) ||
- (47365 <= t && t <= 47391) ||
- (47393 <= t && t <= 47419) ||
- (47421 <= t && t <= 47447) ||
- (47449 <= t && t <= 47475) ||
- (47477 <= t && t <= 47503) ||
- (47505 <= t && t <= 47531) ||
- (47533 <= t && t <= 47559) ||
- (47561 <= t && t <= 47587) ||
- (47589 <= t && t <= 47615) ||
- (47617 <= t && t <= 47643) ||
- (47645 <= t && t <= 47671) ||
- (47673 <= t && t <= 47699) ||
- (47701 <= t && t <= 47727) ||
- (47729 <= t && t <= 47755) ||
- (47757 <= t && t <= 47783) ||
- (47785 <= t && t <= 47811) ||
- (47813 <= t && t <= 47839) ||
- (47841 <= t && t <= 47867) ||
- (47869 <= t && t <= 47895) ||
- (47897 <= t && t <= 47923) ||
- (47925 <= t && t <= 47951) ||
- (47953 <= t && t <= 47979) ||
- (47981 <= t && t <= 48007) ||
- (48009 <= t && t <= 48035) ||
- (48037 <= t && t <= 48063) ||
- (48065 <= t && t <= 48091) ||
- (48093 <= t && t <= 48119) ||
- (48121 <= t && t <= 48147) ||
- (48149 <= t && t <= 48175) ||
- (48177 <= t && t <= 48203) ||
- (48205 <= t && t <= 48231) ||
- (48233 <= t && t <= 48259) ||
- (48261 <= t && t <= 48287) ||
- (48289 <= t && t <= 48315) ||
- (48317 <= t && t <= 48343) ||
- (48345 <= t && t <= 48371) ||
- (48373 <= t && t <= 48399) ||
- (48401 <= t && t <= 48427) ||
- (48429 <= t && t <= 48455) ||
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- (48485 <= t && t <= 48511) ||
- (48513 <= t && t <= 48539) ||
- (48541 <= t && t <= 48567) ||
- (48569 <= t && t <= 48595) ||
- (48597 <= t && t <= 48623) ||
- (48625 <= t && t <= 48651) ||
- (48653 <= t && t <= 48679) ||
- (48681 <= t && t <= 48707) ||
- (48709 <= t && t <= 48735) ||
- (48737 <= t && t <= 48763) ||
- (48765 <= t && t <= 48791) ||
- (48793 <= t && t <= 48819) ||
- (48821 <= t && t <= 48847) ||
- (48849 <= t && t <= 48875) ||
- (48877 <= t && t <= 48903) ||
- (48905 <= t && t <= 48931) ||
- (48933 <= t && t <= 48959) ||
- (48961 <= t && t <= 48987) ||
- (48989 <= t && t <= 49015) ||
- (49017 <= t && t <= 49043) ||
- (49045 <= t && t <= 49071) ||
- (49073 <= t && t <= 49099) ||
- (49101 <= t && t <= 49127) ||
- (49129 <= t && t <= 49155) ||
- (49157 <= t && t <= 49183) ||
- (49185 <= t && t <= 49211) ||
- (49213 <= t && t <= 49239) ||
- (49241 <= t && t <= 49267) ||
- (49269 <= t && t <= 49295) ||
- (49297 <= t && t <= 49323) ||
- (49325 <= t && t <= 49351) ||
- (49353 <= t && t <= 49379) ||
- (49381 <= t && t <= 49407) ||
- (49409 <= t && t <= 49435) ||
- (49437 <= t && t <= 49463) ||
- (49465 <= t && t <= 49491) ||
- (49493 <= t && t <= 49519) ||
- (49521 <= t && t <= 49547) ||
- (49549 <= t && t <= 49575) ||
- (49577 <= t && t <= 49603) ||
- (49605 <= t && t <= 49631) ||
- (49633 <= t && t <= 49659) ||
- (49661 <= t && t <= 49687) ||
- (49689 <= t && t <= 49715) ||
- (49717 <= t && t <= 49743) ||
- (49745 <= t && t <= 49771) ||
- (49773 <= t && t <= 49799) ||
- (49801 <= t && t <= 49827) ||
- (49829 <= t && t <= 49855) ||
- (49857 <= t && t <= 49883) ||
- (49885 <= t && t <= 49911) ||
- (49913 <= t && t <= 49939) ||
- (49941 <= t && t <= 49967) ||
- (49969 <= t && t <= 49995) ||
- (49997 <= t && t <= 50023) ||
- (50025 <= t && t <= 50051) ||
- (50053 <= t && t <= 50079) ||
- (50081 <= t && t <= 50107) ||
- (50109 <= t && t <= 50135) ||
- (50137 <= t && t <= 50163) ||
- (50165 <= t && t <= 50191) ||
- (50193 <= t && t <= 50219) ||
- (50221 <= t && t <= 50247) ||
- (50249 <= t && t <= 50275) ||
- (50277 <= t && t <= 50303) ||
- (50305 <= t && t <= 50331) ||
- (50333 <= t && t <= 50359) ||
- (50361 <= t && t <= 50387) ||
- (50389 <= t && t <= 50415) ||
- (50417 <= t && t <= 50443) ||
- (50445 <= t && t <= 50471) ||
- (50473 <= t && t <= 50499) ||
- (50501 <= t && t <= 50527) ||
- (50529 <= t && t <= 50555) ||
- (50557 <= t && t <= 50583) ||
- (50585 <= t && t <= 50611) ||
- (50613 <= t && t <= 50639) ||
- (50641 <= t && t <= 50667) ||
- (50669 <= t && t <= 50695) ||
- (50697 <= t && t <= 50723) ||
- (50725 <= t && t <= 50751) ||
- (50753 <= t && t <= 50779) ||
- (50781 <= t && t <= 50807) ||
- (50809 <= t && t <= 50835) ||
- (50837 <= t && t <= 50863) ||
- (50865 <= t && t <= 50891) ||
- (50893 <= t && t <= 50919) ||
- (50921 <= t && t <= 50947) ||
- (50949 <= t && t <= 50975) ||
- (50977 <= t && t <= 51003) ||
- (51005 <= t && t <= 51031) ||
- (51033 <= t && t <= 51059) ||
- (51061 <= t && t <= 51087) ||
- (51089 <= t && t <= 51115) ||
- (51117 <= t && t <= 51143) ||
- (51145 <= t && t <= 51171) ||
- (51173 <= t && t <= 51199) ||
- (51201 <= t && t <= 51227) ||
- (51229 <= t && t <= 51255) ||
- (51257 <= t && t <= 51283) ||
- (51285 <= t && t <= 51311) ||
- (51313 <= t && t <= 51339) ||
- (51341 <= t && t <= 51367) ||
- (51369 <= t && t <= 51395) ||
- (51397 <= t && t <= 51423) ||
- (51425 <= t && t <= 51451) ||
- (51453 <= t && t <= 51479) ||
- (51481 <= t && t <= 51507) ||
- (51509 <= t && t <= 51535) ||
- (51537 <= t && t <= 51563) ||
- (51565 <= t && t <= 51591) ||
- (51593 <= t && t <= 51619) ||
- (51621 <= t && t <= 51647) ||
- (51649 <= t && t <= 51675) ||
- (51677 <= t && t <= 51703) ||
- (51705 <= t && t <= 51731) ||
- (51733 <= t && t <= 51759) ||
- (51761 <= t && t <= 51787) ||
- (51789 <= t && t <= 51815) ||
- (51817 <= t && t <= 51843) ||
- (51845 <= t && t <= 51871) ||
- (51873 <= t && t <= 51899) ||
- (51901 <= t && t <= 51927) ||
- (51929 <= t && t <= 51955) ||
- (51957 <= t && t <= 51983) ||
- (51985 <= t && t <= 52011) ||
- (52013 <= t && t <= 52039) ||
- (52041 <= t && t <= 52067) ||
- (52069 <= t && t <= 52095) ||
- (52097 <= t && t <= 52123) ||
- (52125 <= t && t <= 52151) ||
- (52153 <= t && t <= 52179) ||
- (52181 <= t && t <= 52207) ||
- (52209 <= t && t <= 52235) ||
- (52237 <= t && t <= 52263) ||
- (52265 <= t && t <= 52291) ||
- (52293 <= t && t <= 52319) ||
- (52321 <= t && t <= 52347) ||
- (52349 <= t && t <= 52375) ||
- (52377 <= t && t <= 52403) ||
- (52405 <= t && t <= 52431) ||
- (52433 <= t && t <= 52459) ||
- (52461 <= t && t <= 52487) ||
- (52489 <= t && t <= 52515) ||
- (52517 <= t && t <= 52543) ||
- (52545 <= t && t <= 52571) ||
- (52573 <= t && t <= 52599) ||
- (52601 <= t && t <= 52627) ||
- (52629 <= t && t <= 52655) ||
- (52657 <= t && t <= 52683) ||
- (52685 <= t && t <= 52711) ||
- (52713 <= t && t <= 52739) ||
- (52741 <= t && t <= 52767) ||
- (52769 <= t && t <= 52795) ||
- (52797 <= t && t <= 52823) ||
- (52825 <= t && t <= 52851) ||
- (52853 <= t && t <= 52879) ||
- (52881 <= t && t <= 52907) ||
- (52909 <= t && t <= 52935) ||
- (52937 <= t && t <= 52963) ||
- (52965 <= t && t <= 52991) ||
- (52993 <= t && t <= 53019) ||
- (53021 <= t && t <= 53047) ||
- (53049 <= t && t <= 53075) ||
- (53077 <= t && t <= 53103) ||
- (53105 <= t && t <= 53131) ||
- (53133 <= t && t <= 53159) ||
- (53161 <= t && t <= 53187) ||
- (53189 <= t && t <= 53215) ||
- (53217 <= t && t <= 53243) ||
- (53245 <= t && t <= 53271) ||
- (53273 <= t && t <= 53299) ||
- (53301 <= t && t <= 53327) ||
- (53329 <= t && t <= 53355) ||
- (53357 <= t && t <= 53383) ||
- (53385 <= t && t <= 53411) ||
- (53413 <= t && t <= 53439) ||
- (53441 <= t && t <= 53467) ||
- (53469 <= t && t <= 53495) ||
- (53497 <= t && t <= 53523) ||
- (53525 <= t && t <= 53551) ||
- (53553 <= t && t <= 53579) ||
- (53581 <= t && t <= 53607) ||
- (53609 <= t && t <= 53635) ||
- (53637 <= t && t <= 53663) ||
- (53665 <= t && t <= 53691) ||
- (53693 <= t && t <= 53719) ||
- (53721 <= t && t <= 53747) ||
- (53749 <= t && t <= 53775) ||
- (53777 <= t && t <= 53803) ||
- (53805 <= t && t <= 53831) ||
- (53833 <= t && t <= 53859) ||
- (53861 <= t && t <= 53887) ||
- (53889 <= t && t <= 53915) ||
- (53917 <= t && t <= 53943) ||
- (53945 <= t && t <= 53971) ||
- (53973 <= t && t <= 53999) ||
- (54001 <= t && t <= 54027) ||
- (54029 <= t && t <= 54055) ||
- (54057 <= t && t <= 54083) ||
- (54085 <= t && t <= 54111) ||
- (54113 <= t && t <= 54139) ||
- (54141 <= t && t <= 54167) ||
- (54169 <= t && t <= 54195) ||
- (54197 <= t && t <= 54223) ||
- (54225 <= t && t <= 54251) ||
- (54253 <= t && t <= 54279) ||
- (54281 <= t && t <= 54307) ||
- (54309 <= t && t <= 54335) ||
- (54337 <= t && t <= 54363) ||
- (54365 <= t && t <= 54391) ||
- (54393 <= t && t <= 54419) ||
- (54421 <= t && t <= 54447) ||
- (54449 <= t && t <= 54475) ||
- (54477 <= t && t <= 54503) ||
- (54505 <= t && t <= 54531) ||
- (54533 <= t && t <= 54559) ||
- (54561 <= t && t <= 54587) ||
- (54589 <= t && t <= 54615) ||
- (54617 <= t && t <= 54643) ||
- (54645 <= t && t <= 54671) ||
- (54673 <= t && t <= 54699) ||
- (54701 <= t && t <= 54727) ||
- (54729 <= t && t <= 54755) ||
- (54757 <= t && t <= 54783) ||
- (54785 <= t && t <= 54811) ||
- (54813 <= t && t <= 54839) ||
- (54841 <= t && t <= 54867) ||
- (54869 <= t && t <= 54895) ||
- (54897 <= t && t <= 54923) ||
- (54925 <= t && t <= 54951) ||
- (54953 <= t && t <= 54979) ||
- (54981 <= t && t <= 55007) ||
- (55009 <= t && t <= 55035) ||
- (55037 <= t && t <= 55063) ||
- (55065 <= t && t <= 55091) ||
- (55093 <= t && t <= 55119) ||
- (55121 <= t && t <= 55147) ||
- (55149 <= t && t <= 55175) ||
- (55177 <= t && t <= 55203)
- ? 10
- : 11;
- }
- var s = function(t) {
- if (/^[\x20-\xFF]*$/.test(t)) return t;
- const i = [];
- let s,
- a = 0;
- for (; (s = e(t, a)) < t.length; ) i.push(t.slice(a, s)), (a = s);
- return a < t.length && i.push(t.slice(a)), i;
- };
- class a {
- constructor(t, e) {
- (this.type = t), (this.value = e);
- }
- }
- class o {
- constructor(t) {
- (this.s = s(t)), (this.pos = 0);
- }
- end() {
- return this.pos >= this.s.length;
- }
- get() {
- return this.pos < this.s.length ? this.s[this.pos++] : null;
- }
- peek() {
- return this.s[this.pos];
- }
- scan(t) {
- let e;
- return (
- (e =
- 'string' == typeof this.s
- ? t.exec(this.s.slice(this.pos))
- : t.exec(this.s.slice(this.pos).join(''))),
- e ? ((this.pos += e[0].length), e[0]) : null
- );
- }
- isWhiteSpace() {
- return /[ \f\n\r\t\v\xA0\u2028\u2029]/.test(this.s[this.pos]);
- }
- makeToken() {
- if (this.end()) return null;
- if (this.isWhiteSpace()) return this.get(), new a('space');
- let t = null;
- if ('\\' === this.peek()) {
- if ((this.get(), !this.end())) {
- let e = this.scan(/^[a-zA-Z*]+/);
- 'bgroup' === e
- ? (t = new a('{'))
- : 'egroup' === e
- ? (t = new a('}'))
- : (e || (e = this.get()),
- (t = new a('command', e)));
- }
- } else if ('{' === this.peek() || '}' === this.peek())
- t = new a(this.get());
- else if ('#' === this.peek()) {
- if ((this.get(), !this.end())) {
- let e = !1,
- i = this.peek();
- if (
- /[0-9?]/.test(i) &&
- ((e = !0), this.pos + 1 < this.s.length)
- ) {
- const t = this.s[this.pos + 1];
- e = /[^0-9A-Za-z]/.test(t);
- }
- e
- ? ((t = new a('#')),
- (i = this.get()),
- (t.value =
- i >= '0' && i <= '9' ? parseInt(i) : '?'))
- : (t = new a('literal', '#'));
- }
- } else
- '~' === this.peek()
- ? (this.get(), (t = new a('command', 'space')))
- : '$' === this.peek()
- ? (this.get(),
- '$' === this.peek()
- ? (this.get(), (t = new a('$$')))
- : (t = new a('$')))
- : (t = new a('literal', this.get()));
- return t;
- }
- }
- var n = function(t) {
- const e = [],
- i = t.toString().split(/\r?\n/);
- let s = '',
- a = '';
- for (const t of i) {
- (s += a), (a = ' ');
- const e = t.match(/((?:\\%)|[^%])*/);
- e && (s += e[0]);
- }
- const n = new o(s);
- for (; !n.end(); ) {
- const t = n.makeToken();
- t && e.push(t);
- }
- return e;
- },
- r = {
- 'AMS-Regular': {
- 65: [0, 0.68889, 0, 0],
- 66: [0, 0.68889, 0, 0],
- 67: [0, 0.68889, 0, 0],
- 68: [0, 0.68889, 0, 0],
- 69: [0, 0.68889, 0, 0],
- 70: [0, 0.68889, 0, 0],
- 71: [0, 0.68889, 0, 0],
- 72: [0, 0.68889, 0, 0],
- 73: [0, 0.68889, 0, 0],
- 74: [0.16667, 0.68889, 0, 0],
- 75: [0, 0.68889, 0, 0],
- 76: [0, 0.68889, 0, 0],
- 77: [0, 0.68889, 0, 0],
- 78: [0, 0.68889, 0, 0],
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- 106: [0.22222, 0.61111, 0, 0],
- 107: [0, 0.61111, 0, 0],
- 108: [0, 0.61111, 0, 0],
- 109: [0, 0.43056, 0, 0],
- 110: [0, 0.43056, 0, 0],
- 111: [0, 0.43056, 0, 0],
- 112: [0.22222, 0.43056, 0, 0],
- 113: [0.22222, 0.43056, 0, 0],
- 114: [0, 0.43056, 0, 0],
- 115: [0, 0.43056, 0, 0],
- 116: [0, 0.55358, 0, 0],
- 117: [0, 0.43056, 0, 0],
- 118: [0, 0.43056, 0, 0],
- 119: [0, 0.43056, 0, 0],
- 120: [0, 0.43056, 0, 0],
- 121: [0.22222, 0.43056, 0, 0],
- 122: [0, 0.43056, 0, 0],
- 123: [0.08333, 0.69444, 0, 0],
- 124: [0.08333, 0.69444, 0, 0],
- 125: [0.08333, 0.69444, 0, 0],
- 126: [0, 0.61111, 0, 0],
- 127: [0, 0.61111, 0, 0],
- 305: [0, 0.43056, 0, 0],
- 567: [0.22222, 0.43056, 0, 0],
- 768: [0, 0.61111, 0, 0],
- 769: [0, 0.61111, 0, 0],
- 770: [0, 0.61111, 0, 0],
- 771: [0, 0.61111, 0, 0],
- 772: [0, 0.56555, 0, 0],
- 774: [0, 0.61111, 0, 0],
- 776: [0, 0.61111, 0, 0],
- 778: [0, 0.61111, 0, 0],
- 780: [0, 0.56597, 0, 0],
- 915: [0, 0.61111, 0, 0],
- 916: [0, 0.61111, 0, 0],
- 920: [0, 0.61111, 0, 0],
- 923: [0, 0.61111, 0, 0],
- 926: [0, 0.61111, 0, 0],
- 928: [0, 0.61111, 0, 0],
- 931: [0, 0.61111, 0, 0],
- 933: [0, 0.61111, 0, 0],
- 934: [0, 0.61111, 0, 0],
- 936: [0, 0.61111, 0, 0],
- 937: [0, 0.61111, 0, 0],
- 2018: [0, 0.61111, 0, 0],
- 2019: [0, 0.61111, 0, 0],
- 8242: [0, 0.61111, 0, 0],
- },
- };
- const l = /[\u3040-\u309F]|[\u30A0-\u30FF]|[\u4E00-\u9FAF]|[\uAC00-\uD7AF]/,
- c = {
- slant: [0.25, 0.25, 0.25],
- space: [0, 0, 0],
- stretch: [0, 0, 0],
- shrink: [0, 0, 0],
- xHeight: [0.431, 0.431, 0.431],
- quad: [1, 1.171, 1.472],
- extraSpace: [0, 0, 0],
- num1: [0.677, 0.732, 0.925],
- num2: [0.394, 0.384, 0.387],
- num3: [0.444, 0.471, 0.504],
- denom1: [0.686, 0.752, 1.025],
- denom2: [0.345, 0.344, 0.532],
- sup1: [0.413, 0.503, 0.504],
- sup2: [0.363, 0.431, 0.404],
- sup3: [0.289, 0.286, 0.294],
- sub1: [0.15, 0.143, 0.2],
- sub2: [0.247, 0.286, 0.4],
- supDrop: [0.386, 0.353, 0.494],
- subDrop: [0.05, 0.071, 0.1],
- delim1: [2.39, 1.7, 1.98],
- delim2: [1.01, 1.157, 1.42],
- axisHeight: [0.25, 0.25, 0.25],
- },
- h = {
- defaultRuleThickness: 0.04,
- bigOpSpacing1: 0.111,
- bigOpSpacing2: 0.166,
- bigOpSpacing3: 0.2,
- bigOpSpacing4: 0.6,
- bigOpSpacing5: 0.1,
- ptPerEm: 10,
- pxPerEm: 40 / 3,
- doubleRuleSep: 0.2,
- arraycolsep: 0.5,
- baselineskip: 1.2,
- arrayrulewidth: 0.04,
- fboxsep: 0.3,
- fboxrule: 0.04,
- },
- d = {
- ' ': ' ',
- '': ' ',
- Å: 'A',
- Ç: 'C',
- Ð: 'D',
- Þ: 'o',
- å: 'a',
- ç: 'c',
- ð: 'd',
- þ: 'o',
- А: 'A',
- Б: 'B',
- В: 'B',
- Г: 'F',
- Д: 'A',
- Е: 'E',
- Ж: 'K',
- З: '3',
- И: 'N',
- Й: 'N',
- К: 'K',
- Л: 'N',
- М: 'M',
- Н: 'H',
- О: 'O',
- П: 'N',
- Р: 'P',
- С: 'C',
- Т: 'T',
- У: 'y',
- Ф: 'O',
- Х: 'X',
- Ц: 'U',
- Ч: 'h',
- Ш: 'W',
- Щ: 'W',
- Ъ: 'B',
- Ы: 'X',
- Ь: 'B',
- Э: '3',
- Ю: 'X',
- Я: 'R',
- а: 'a',
- б: 'b',
- в: 'a',
- г: 'r',
- д: 'y',
- е: 'e',
- ж: 'm',
- з: 'e',
- и: 'n',
- й: 'n',
- к: 'n',
- л: 'n',
- м: 'm',
- н: 'n',
- о: 'o',
- п: 'n',
- р: 'p',
- с: 'c',
- т: 'o',
- у: 'y',
- ф: 'b',
- х: 'x',
- ц: 'n',
- ч: 'n',
- ш: 'w',
- щ: 'w',
- ъ: 'a',
- ы: 'm',
- ь: 'a',
- э: 'e',
- ю: 'm',
- я: 'r',
- };
- function p(t, e, i) {
- if ('string' == typeof t) {
- const i = t.match(/([-+]?[0-9.]*)\s*([a-zA-Z]+)/);
- i
- ? ((t = parseFloat(i[1])), (e = i[2].toLowerCase()))
- : (t = parseFloat(t));
- }
- const s =
- {
- pt: 1,
- mm: 7227 / 2540,
- cm: 7227 / 254,
- ex: 35271 / 8192,
- px: 0.75,
- em: h.ptPerEm,
- bp: 1.00375,
- dd: 1238 / 1157,
- pc: 12,
- in: 72.27,
- mu: 10 / 18,
- }[e] || 1;
- if (isFinite(i)) {
- const e = Math.pow(10, i);
- return Math.round((t / h.ptPerEm) * s * e) / e;
- }
- return (t / h.ptPerEm) * s;
- }
- var m = {
- toEm: p,
- toPx: function(t, e) {
- return p(t, e) * (4 / 3) * h.ptPerEm;
- },
- METRICS: h,
- SIGMAS: c,
- getCharacterMetrics: function(t, e) {
- const i =
- {
- cal: 'Caligraphic-Regular',
- ams: 'AMS-Regular',
- frak: 'Fraktur-Regular',
- bb: 'AMS-Regular',
- scr: 'Script-Regular',
- cmr: 'Main-Regular',
- cmtt: 'Typewriter-Regular',
- cmss: 'SansSerif-Regular',
- }[e] || e;
- let s = t.charCodeAt(0);
- t[0] in d
- ? (s = d[t[0]].charCodeAt(0))
- : l.test(t[0]) && (s = 77);
- const a = r[i][s];
- return a
- ? a
- ? {
- depth: a[0],
- height: a[1],
- italic: a[2],
- skew: a[3],
- }
- : null
- : {
- defaultMetrics: !0,
- depth: 0.2,
- height: 0.7,
- italic: 0,
- skew: 0,
- };
- },
- };
- const u = [{}, {}, {}];
- let f;
- for (const t in c)
- if (Object.prototype.hasOwnProperty.call(c, t))
- for (f = 0; f < 3; f++) u[f][t] = c[t][f];
- for (f = 0; f < 3; f++) u[f].emPerEx = c.xHeight[f] / c.quad[f];
- class g {
- constructor(t, e, i, s) {
- (this.id = t),
- (this.size = e),
- (this.cramped = s),
- (this.sizeMultiplier = i),
- (this.metrics = u[e > 0 ? e - 1 : 0]);
- }
- sup() {
- return y[k[this.id]];
- }
- sub() {
- return y[v[this.id]];
- }
- fracNum() {
- return y[w[this.id]];
- }
- fracDen() {
- return y[S[this.id]];
- }
- cramp() {
- return y[A[this.id]];
- }
- cls() {
- return b[this.size];
- }
- adjustTo(t) {
- let e = x[this.size][t.size];
- return e.length > 0 && (e = ' ' + e), e;
- }
- isTight() {
- return this.size >= 2;
- }
- }
- const y = [
- new g(0, 0, 1, !1),
- new g(1, 0, 1, !0),
- new g(2, 1, 1, !1),
- new g(3, 1, 1, !0),
- new g(4, 2, 0.7, !1),
- new g(5, 2, 0.7, !0),
- new g(6, 3, 0.5, !1),
- new g(7, 3, 0.5, !0),
- ],
- b = [
- 'displaystyle textstyle',
- 'textstyle',
- 'scriptstyle',
- 'scriptscriptstyle',
- ],
- x = [
- [
- '',
- '',
- 'reset-textstyle scriptstyle',
- 'reset-textstyle scriptscriptstyle',
- ],
- [
- 'reset-textstyle displaystyle textstyle',
- '',
- 'reset-textstyle scriptstyle',
- 'reset-textstyle scriptscriptstyle',
- ],
- [
- 'reset-scriptstyle textstyle displaystyle',
- 'reset-scriptstyle textstyle',
- '',
- 'reset-scriptstyle scriptscriptstyle',
- ],
- [
- 'reset-scriptscriptstyle textstyle displaystyle',
- 'reset-scriptscriptstyle textstyle',
- 'reset-scriptscriptstyle scriptstyle',
- '',
- ],
- ],
- k = [4, 5, 4, 5, 6, 7, 6, 7],
- v = [5, 5, 5, 5, 7, 7, 7, 7],
- w = [2, 3, 4, 5, 6, 7, 6, 7],
- S = [3, 3, 5, 5, 7, 7, 7, 7],
- A = [1, 1, 3, 3, 5, 5, 7, 7];
- var M = {
- DISPLAY: y[0],
- TEXT: y[2],
- SCRIPT: y[4],
- SCRIPTSCRIPT: y[6],
- toMathstyle: function(t) {
- return t
- ? 'object' == typeof t
- ? t
- : {
- displaystyle: y[0],
- textstyle: y[2],
- scriptstyle: y[4],
- scriptscriptstyle: y[6],
- }[t]
- : t;
- },
- };
- class C {
- constructor(t) {
- (this.macros = t.macros || {}),
- (this.generateID = !!t.generateID && t.generateID),
- (this.mathstyle = M.toMathstyle(
- t.mathstyle || 'displaystyle'
- )),
- (this.size = t.size || 'size5'),
- (this.parentMathstyle =
- t.parentMathstyle || this.mathstyle),
- (this.parentSize = t.parentSize || this.size),
- (this.opacity = t.opacity);
- }
- clone(t) {
- const e = new C(this);
- return (
- (e.parentMathstyle = this.mathstyle),
- (e.parentSize = this.size),
- (e.macros = this.macros),
- t &&
- (('auto' !== t.mathstyle && t.mathstyle) ||
- delete t.mathstyle,
- Object.assign(e, t),
- 'string' == typeof t.mathstyle &&
- (e.mathstyle = M.toMathstyle(t.mathstyle))),
- e
- );
- }
- setMathstyle(t) {
- t && 'auto' !== t && (this.mathstyle = M.toMathstyle(t));
- }
- cramp() {
- return this.clone({ mathstyle: this.mathstyle.cramp() });
- }
- sup() {
- return this.clone({ mathstyle: this.mathstyle.sup() });
- }
- sub() {
- return this.clone({ mathstyle: this.mathstyle.sup() });
- }
- }
- var _ = C;
- function T(t) {
- let e = '';
- if ('number' == typeof t) e += Math.floor(100 * t) / 100;
- else if ('string' == typeof t) e += t;
- else if (Array.isArray(t)) for (const i of t) e += T(i);
- else t && (e += t.toString());
- return e;
- }
- class L {
- constructor(t, e) {
- (this.classes = e || ''),
- Array.isArray(t)
- ? (this.children = [].concat.apply([], t))
- : 'string' == typeof t
- ? (this.body = t)
- : t && 'object' == typeof t && (this.children = [t]),
- (this.style = null),
- this.updateDimensions();
- }
- updateDimensions() {
- let t = 0,
- e = 0,
- i = 1;
- this.children &&
- this.children.forEach(s => {
- s.height > t && (t = s.height),
- s.depth > e && (e = s.depth),
- s.maxFontSize > i && (i = s.maxFontSize);
- }),
- (this.height = t),
- (this.depth = e),
- (this.maxFontSize = i);
- }
- selected(t) {
- t &&
- !/ML__selected/.test(this.classes) &&
- (this.classes.length > 0 && (this.classes += ' '),
- (this.classes += 'ML__selected')),
- !t &&
- /ML__selected/.test(this.classes) &&
- (this.classes = this.classes.replace(
- 'ML__selected',
- ''
- )),
- this.children && this.children.forEach(e => e.selected(t));
- }
- applyStyle(t) {
- if (!t) return;
- if (
- (t.color &&
- ('none' !== t.color
- ? this.setStyle('color', t.color)
- : this.setStyle('color', '')),
- t.backgroundColor &&
- ('none' !== t.backgroundColor
- ? this.setStyle(
- 'background-color',
- t.backgroundColor
- )
- : this.setStyle('background-color', '')),
- t.cssClass && (this.classes += ' ' + t.cssClass),
- !this.body)
- )
- return;
- let e = t.fontFamily;
- 'math' === e && 'n' === t.fontShape && (e = 'cmr');
- let i = 'Main-Regular';
- if (
- (e &&
- (i = (function(t, e) {
- if (
- 'string' != typeof t ||
- t.length > 1 ||
- '' === t
- )
- return K[e];
- if ('bb' === e || 'scr' === e) {
- if (!/^[A-Z ]$/.test(t)) return null;
- } else if ('cal' === e) {
- if (!/^[0-9A-Z ]$/.test(t)) return null;
- } else if ('frak' === e) {
- if (
- !/^[0-9A-Za-z ]$|^[!"#$%&'()*+,\-./:;=?[]^’‘]$/.test(
- t
- )
- )
- return null;
- } else if (
- ('cmtt' === e || 'cmss' === e) &&
- !/^[0-9A-Za-z ]$|^[!"&'()*+,\-./:;=?@[]^_~\u0131\u0237\u0393\u0394\u0398\u039b\u039e\u03A0\u03A3\u03A5\u03A8\u03a9’‘]$/.test(
- t
- )
- )
- return null;
- return K[e];
- })(this.body, e)),
- t.fontShape &&
- (this.classes +=
- ' ' +
- ({
- it: 'ML__it',
- sl: 'ML__shape_sl',
- sc: 'ML__shape_sc',
- ol: 'ML__shape_ol',
- }[t.fontShape] || '')),
- t.fontSeries)
- ) {
- const e = t.fontSeries.match(/(.?[lbm])?(.?[cx])?/);
- e &&
- ((this.classes +=
- ' ' +
- ({
- ul: 'ML__series_ul',
- el: 'ML__series_el',
- l: 'ML__series_l',
- sl: 'ML__series_sl',
- m: '',
- sb: 'ML__series_sb',
- b: 'ML__bold',
- eb: 'ML__series_eb',
- ub: 'ML__series_ub',
- }[e[1] || ''] || '')),
- (this.classes +=
- ' ' +
- ({
- uc: 'ML__series_uc',
- ec: 'ML__series_ec',
- c: 'ML__series_c',
- sc: 'ML__series_sc',
- n: '',
- sx: 'ML__series_sx',
- x: 'ML__series_x',
- ex: 'ML__series_ex',
- ux: 'ML__series_ux',
- }[e[2] || ''] || '')));
- }
- if (
- (N[e]
- ? (this.classes += ' ' + N[e])
- : e && this.setStyle('font-family', e),
- this.body && this.body.length > 0 && i)
- ) {
- (this.height = 0),
- (this.depth = 0),
- (this.maxFontSize =
- {
- size1: 0.5,
- size2: 0.7,
- size3: 0.8,
- size4: 0.9,
- size5: 1,
- size6: 1.2,
- size7: 1.44,
- size8: 1.73,
- size9: 2.07,
- size10: 2.49,
- }[t.fontSize] || 1),
- (this.skew = 0),
- (this.italic = 0);
- for (let t = 0; t < this.body.length; t++) {
- const e = m.getCharacterMetrics(this.body.charAt(t), i);
- e &&
- ((this.height = Math.max(this.height, e.height)),
- (this.depth = Math.max(this.depth, e.depth)),
- (this.skew = e.skew),
- (this.italic = e.italic));
- }
- }
- }
- setStyle(t, ...e) {
- const i = T(e);
- i.length > 0 &&
- (this.style || (this.style = {}), (this.style[t] = i));
- }
- setTop(t) {
- t &&
- 0 !== t &&
- (this.style || (this.style = {}),
- (this.style.top = T(t) + 'em'),
- (this.height -= t),
- (this.depth += t));
- }
- setLeft(t) {
- t &&
- 0 !== t &&
- (this.style || (this.style = {}),
- (this.style['margin-left'] = T(t) + 'em'));
- }
- setRight(t) {
- t &&
- 0 !== t &&
- (this.style || (this.style = {}),
- (this.style['margin-right'] = T(t) + 'em'));
- }
- setWidth(t) {
- t &&
- 0 !== t &&
- (this.style || (this.style = {}),
- (this.style.width = T(t) + 'em'));
- }
- addMarginRight(t) {
- if (t && 0 !== t) {
- if (
- !this.style &&
- !/qquad|quad|enspace|thickspace|mediumspace|thinspace|negativethinspace/.test(
- this.classes
- )
- ) {
- const e = {
- 2: 'qquad',
- 1: 'quad',
- '.5': 'enspace',
- 0.277778: 'thickspace',
- 0.222222: 'mediumspace',
- 0.166667: 'thinspace',
- '-0.166667': 'negativethinspace',
- }[t.toString()];
- if (e) return void (this.classes += ' rspace ' + e);
- }
- this.style || (this.style = {});
- const e = parseFloat(this.style['margin-right'] || '0');
- this.style['margin-right'] = T(e + t) + 'em';
- }
- }
- toMarkup(t, e) {
- (t = t || 0), (e = e || 1);
- let i = '',
- s = this.body || '';
- if (this.children) {
- let t = 'none';
- for (const i of this.children) {
- let a = 0;
- if (t) {
- let s = i.type;
- s &&
- ('textord' === s && (s = 'mord'),
- 'first' === s && (s = 'none'),
- (a = i.isTight
- ? E[t + '+' + s] || 0
- : F[t + '+' + s] || 0),
- (a = Math.floor(e * a)));
- }
- (s += i.toMarkup(a, e)), (t = q(i));
- }
- }
- if (
- ('' !== s && s) ||
- (this.classes && 'ML__selected' !== this.classes)
- ) {
- if (
- ((i = '