diff --git a/package-lock.json b/package-lock.json index 9b41a8e8..edd1b25a 100644 --- a/package-lock.json +++ b/package-lock.json @@ -14,6 +14,11 @@ "styles", "docs" ], + "dependencies": { + "@myst-theme/search": "^0.0.0", + "minisearch": "^7.1.0", + "string.prototype.matchall": "^4.0.11" + }, "devDependencies": { "@changesets/cli": "^2.26.1", "@remix-run/node": "~1.17.0", @@ -7707,6 +7712,14 @@ "resolved": "packages/providers", "link": true }, + "node_modules/@myst-theme/search": { + "resolved": "packages/search", + "link": true + }, + "node_modules/@myst-theme/search-minisearch": { + "resolved": "packages/search-minisearch", + "link": true + }, "node_modules/@myst-theme/site": { "resolved": "packages/site", "link": true @@ -8232,6 +8245,41 @@ } } }, + "node_modules/@radix-ui/react-dialog": { + "version": "1.1.1", + "resolved": "https://registry.npmjs.org/@radix-ui/react-dialog/-/react-dialog-1.1.1.tgz", + "integrity": 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"https://registry.npmjs.org/typed-array-length/-/typed-array-length-1.0.6.tgz", "integrity": "sha512-/OxDN6OtAk5KBpGb28T+HZc2M+ADtvRxXrKKbUwtsLgdoxgX13hyy7ek6bFRl5+aBs2yZzB0c4CnQfAtVypW/g==", - "dev": true, "license": "MIT", "dependencies": { "call-bind": "^1.0.7", @@ -38920,7 +38928,6 @@ "version": "1.0.2", "resolved": "https://registry.npmjs.org/unbox-primitive/-/unbox-primitive-1.0.2.tgz", "integrity": "sha512-61pPlCD9h51VoreyJ0BReideM3MDKMKnh6+V9L08331ipq6Q8OFXZYiqP6n/tbHx4s5I9uRhcye6BrbkizkBDw==", - "dev": true, "license": "MIT", "dependencies": { "call-bind": "^1.0.2", @@ -40432,7 +40439,6 @@ "version": "1.0.2", "resolved": "https://registry.npmjs.org/which-boxed-primitive/-/which-boxed-primitive-1.0.2.tgz", "integrity": "sha512-bwZdv0AKLpplFY2KZRX6TvyuN7ojjr7lwkg6ml0roIy9YeuSr7JS372qlNW18UQYzgYK9ziGcerWqZOmEn9VNg==", - "dev": true, "license": "MIT", "dependencies": { "is-bigint": "^1.0.1", @@ -40967,6 +40973,7 @@ "version": "0.12.0", "license": "MIT", "dependencies": { + "@myst-theme/search": "^0.0.0", "myst-common": "^1.6.0", "myst-config": "^1.5.0", "myst-spec-ext": "^1.6.0", @@ -41255,6 +41262,19 @@ "react-dom": "^16.8 || ^17.0 || ^18.0" } }, + "packages/search": { + "name": "@myst-theme/search", + "version": "0.0.0", + "license": "MIT" + }, + "packages/search-minisearch": { + "name": "@myst-theme/search-minisearch", + "version": "0.0.0", + "license": "MIT", + "dependencies": { + "@myst-theme/search": "^0.0.0" + } + }, "packages/site": { "name": "@myst-theme/site", "version": "0.12.0", @@ -41267,7 +41287,9 @@ "@myst-theme/frontmatter": "^0.12.0", "@myst-theme/jupyter": "^0.12.0", "@myst-theme/providers": "^0.12.0", + "@myst-theme/search": "^0.0.0", "@radix-ui/react-collapsible": "^1.0.3", + "@radix-ui/react-dialog": "^1.0.3", "classnames": "^2.3.2", "lodash.throttle": "^4.1.1", "myst-common": "^1.6.0", @@ -41278,6 +41300,7 @@ "nbtx": "^0.2.3", "node-cache": "^5.1.2", "node-fetch": "^2.6.11", + "string.prototype.matchall": "^4.0.11", "thebe-react": "0.4.10", "unist-util-select": "^4.0.1" }, @@ -41360,6 +41383,8 @@ "@myst-theme/icons": "^0.12.0", "@myst-theme/jupyter": "^0.12.0", "@myst-theme/providers": "^0.12.0", + "@myst-theme/search": "^0.0.0", + "@myst-theme/search-minisearch": "^0.0.0", "@myst-theme/site": "^0.12.0", "@myst-theme/styles": "^0.12.0", "@remix-run/node": "~1.17.0", diff --git a/package.json b/package.json index b94d33f6..20b73202 100644 --- a/package.json +++ b/package.json @@ -51,5 +51,10 @@ "npm": ">=7.0.0", "node": ">=14.0.0" }, - "packageManager": "npm@8.10.0" + "packageManager": "npm@8.10.0", + "dependencies": { + "@myst-theme/search": "^0.0.0", + "minisearch": "^7.1.0", + "string.prototype.matchall": "^4.0.11" + } } diff --git a/packages/common/package.json b/packages/common/package.json index b1d48871..52eed93e 100644 --- a/packages/common/package.json +++ b/packages/common/package.json @@ -19,6 +19,7 @@ "build": "npm-run-all -l clean -p build:esm" }, "dependencies": { + "@myst-theme/search": "^0.0.0", "myst-common": "^1.6.0", "myst-config": "^1.5.0", "myst-spec-ext": "^1.6.0", diff --git a/packages/common/src/types.ts b/packages/common/src/types.ts index db1ce01b..02e9a936 100644 --- a/packages/common/src/types.ts +++ b/packages/common/src/types.ts @@ -2,6 +2,7 @@ import type { Dependency, SourceFileKind } from 'myst-spec-ext'; import type { GenericParent, References } from 'myst-common'; import type { SiteAction, SiteExport, SiteManifest } from 'myst-config'; import type { PageFrontmatter } from 'myst-frontmatter'; +import type { MystSearchIndex } from '@myst-theme/search'; export enum Theme { light = 'light', @@ -25,6 +26,7 @@ export type Heading = { export type SiteLoader = { theme?: Theme; config?: SiteManifest; + searchIndex?: MystSearchIndex; CONTENT_CDN_PORT?: string | number; MODE?: 'app' | 'static'; BASE_URL?: string; diff --git a/packages/providers/src/index.tsx b/packages/providers/src/index.tsx index 8c68d21e..2b5564e5 100644 --- a/packages/providers/src/index.tsx +++ b/packages/providers/src/index.tsx @@ -5,6 +5,7 @@ export * from './references.js'; export * from './baseurl.js'; export * from './ui.js'; export * from './site.js'; +export * from './search.js'; export * from './tabs.js'; export * from './xref.js'; export * from './renderers.js'; diff --git a/packages/providers/src/search.tsx b/packages/providers/src/search.tsx new file mode 100644 index 00000000..c6d8499f --- /dev/null +++ b/packages/providers/src/search.tsx @@ -0,0 +1,19 @@ +import React, { useContext } from 'react'; +import type { ISearch } from '@myst-theme/search'; + +const SearchContext = React.createContext(undefined); + +export function SearchProvider({ + search, + children, +}: { + search?: ISearch; + children: React.ReactNode; +}) { + return {children}; +} + +export function useSearch() { + const config = useContext(SearchContext); + return config; +} diff --git a/packages/search-minisearch/.eslintrc.cjs b/packages/search-minisearch/.eslintrc.cjs new file mode 100644 index 00000000..f9a3f7ae --- /dev/null +++ b/packages/search-minisearch/.eslintrc.cjs @@ -0,0 +1,5 @@ +module.exports = { + root: true, + extends: ['curvenote'], + ignorePatterns: ['src/**/*.spec.ts'], +}; diff --git a/packages/search-minisearch/README.md b/packages/search-minisearch/README.md new file mode 100644 index 00000000..54edb14c --- /dev/null +++ b/packages/search-minisearch/README.md @@ -0,0 +1,3 @@ +# @myst-theme/search-minisearch + +A minisearch implementation for client-side searching in MyST sites. diff --git a/packages/search-minisearch/package.json b/packages/search-minisearch/package.json new file mode 100644 index 00000000..9ad2fcd8 --- /dev/null +++ b/packages/search-minisearch/package.json @@ -0,0 +1,24 @@ +{ + "name": "@myst-theme/search-minisearch", + "version": "0.0.0", + "type": "module", + "exports": "./dist/index.js", + "types": "./dist/index.d.ts", + "files": [ + "dist" + ], + "license": "MIT", + "sideEffects": false, + "scripts": { + "clean": "rimraf dist", + "lint": "eslint \"src/**/*.ts*\" -c ./.eslintrc.cjs", + "lint:format": "prettier --check \"src/**/*.{ts,tsx,md}\"", + "test": "vitest run", + "test:watch": "vitest watch", + "build:esm": "tsc --project ./tsconfig.json --module Node16 --outDir dist --declaration", + "build": "npm-run-all -l clean -p build:esm" + }, + "dependencies": { + "@myst-theme/search": "^0.0.0" + } +} diff --git a/packages/search-minisearch/src/index.ts b/packages/search-minisearch/src/index.ts new file mode 100644 index 00000000..c57dcca0 --- /dev/null +++ b/packages/search-minisearch/src/index.ts @@ -0,0 +1,80 @@ +import MiniSearch, { type Options, type SearchResult as MiniSearchResult } from 'minisearch'; +import type { SearchRecord, SearchResult, ISearch } from '@myst-theme/search'; + +export type ExtendedOptions = Options & Required>; + +export function prepareOptions(options: Options): ExtendedOptions { + return { + ...options, + tokenize: MiniSearch.getDefault('tokenize'), + processTerm: MiniSearch.getDefault('processTerm'), + }; +} + +export type RawSearchResult = SearchRecord & MiniSearchResult; + +export function combineResults(results: Map>) { + const [firstEntry, ...restEntries] = results.entries(); + + const firstRawResults = firstEntry[1]; + const initialValue = new Map( + Array.from(firstRawResults.entries(), ([id, rawResult]) => { + // eslint-disable-next-line @typescript-eslint/no-unused-vars + const { id: _, score, terms, queryTerms, match, ...rest } = rawResult; + return [ + id, + { + id, + queries: [ + { + term: queryTerms[0], + matches: match, + }, + ], + ...rest, + }, + ]; + }), + ); + const mergedResults = restEntries.reduce( + (accumulator: Map, value: [string, Map]) => { + const nextAccumulator = new Map(); + + const rawResults = value[1]; + rawResults.forEach((rawResult, docID) => { + const existing = accumulator.get(docID); + if (existing == null) { + return; + } + const { queryTerms, match } = rawResult; + existing.queries.push({ + term: queryTerms[0], + matches: match, + }); + nextAccumulator.set(docID, existing); + }); + return nextAccumulator; + }, + initialValue, + ); + return Array.from(mergedResults.values()); +} + +export function createSearch(documents: SearchRecord[], options: Options): ISearch { + const extendedOptions = prepareOptions(options); + const search = new MiniSearch(extendedOptions); + search.addAll(documents.map((doc, index) => ({ ...doc, id: index }))); + return (query: string) => { + // Implement executeQuery whilst retaining distinction between terms + // TODO: should we check for unique terms? + const terms = extendedOptions.tokenize(query); + const termResults = new Map( + terms.map((term) => [ + term, + new Map(search.search(term).map((doc) => [doc.id, doc as RawSearchResult])), + ]), + ); + + return combineResults(termResults); + }; +} diff --git a/packages/search-minisearch/tsconfig.json b/packages/search-minisearch/tsconfig.json new file mode 100644 index 00000000..ffd179e4 --- /dev/null +++ b/packages/search-minisearch/tsconfig.json @@ -0,0 +1,5 @@ +{ + "extends": "../tsconfig/esm.json", + "include": ["."], + "exclude": ["dist", "node_modules", "src/**/*.spec.ts", "tests"] +} diff --git a/packages/search/.eslintrc.cjs b/packages/search/.eslintrc.cjs new file mode 100644 index 00000000..f9a3f7ae --- /dev/null +++ b/packages/search/.eslintrc.cjs @@ -0,0 +1,5 @@ +module.exports = { + root: true, + extends: ['curvenote'], + ignorePatterns: ['src/**/*.spec.ts'], +}; diff --git a/packages/search/README.md b/packages/search/README.md new file mode 100644 index 00000000..e28bb3fb --- /dev/null +++ b/packages/search/README.md @@ -0,0 +1,3 @@ +# @myst-theme/search + +An implementation and spec for client-side searching in MyST sites. diff --git a/packages/search/package.json b/packages/search/package.json new file mode 100644 index 00000000..20f7ccf4 --- /dev/null +++ b/packages/search/package.json @@ -0,0 +1,22 @@ +{ + "name": "@myst-theme/search", + "version": "0.0.0", + "type": "module", + "exports": "./dist/index.js", + "types": "./dist/index.d.ts", + "files": [ + "dist" + ], + "license": "MIT", + "sideEffects": false, + "scripts": { + "clean": "rimraf dist", + "lint": "eslint \"src/**/*.ts*\" -c ./.eslintrc.cjs", + "lint:format": "prettier --check \"src/**/*.{ts,tsx,md}\"", + "test": "vitest run", + "test:watch": "vitest watch", + "build:esm": "tsc --project ./tsconfig.json --module Node16 --outDir dist --declaration", + "build": "npm-run-all -l clean -p build:esm" + }, + "dependencies": {} +} diff --git a/packages/search/src/index.ts b/packages/search/src/index.ts new file mode 100644 index 00000000..773f6599 --- /dev/null +++ b/packages/search/src/index.ts @@ -0,0 +1,3 @@ +export * from './types.js'; +export * from './rank.js'; +export * from './search.js'; diff --git a/packages/search/src/rank.ts b/packages/search/src/rank.ts new file mode 100644 index 00000000..67ed2ebb --- /dev/null +++ b/packages/search/src/rank.ts @@ -0,0 +1,301 @@ +import type { Query, SearchResult, RankedSearchResult, AttributeType } from './types.js'; +import { SEARCH_ATTRIBUTES_ORDERED } from './types.js'; +import { extractField, SPACE_OR_PUNCTUATION } from './search.js'; + +export const POSITIONAL_SEARCH_ATTRIBUTES: AttributeType[] = ['content'] as const; + +// Weights that prioritise headings over content +const TYPE_WEIGHTS = new Map([ + ['lvl1', 90], + ['lvl2', 80], + ['lvl3', 70], + ['lvl4', 60], + ['lvl5', 50], + ['lvl6', 40], + ['content', 0], +]); + +/* + * Generic `cmp` helper function + * + * @param left - left value + * @param right - right value + */ +function cmp(left: number, right: number): number { + if (left < right) { + return -1; + } else if (left > right) { + return +1; + } else { + return 0; + } +} + +/** + * Build a RegExp that matches a single TOKEN bounded by SPACE_OR_PUNCTUATION, or string boundaries + * + * @param text - text to match, e.g. ` foo `, ` foo bar `, `foo bar` + */ +function buildRegExpToken(token: string): RegExp { + return new RegExp( + `(?:(?:${SPACE_OR_PUNCTUATION.source})|^)${token}(?:(?:${SPACE_OR_PUNCTUATION.source})|$)`, + `${SPACE_OR_PUNCTUATION.flags}i`, + ); +} + +/** + * Compute the proximity between two queries, bounded by a limit + * + * @param record - parent search record + * @param left - first query + * @param right - second query + * @param bound - upper limit on computed proximity + */ +function queryPairProximity( + record: SearchResult, + left: Query, + right: Query, + bound: number, +): number { + // TODO: this is highly-nested, and probably slow + // it should be re-written for performance + let bestProximity = bound; + + // For each term in the left query + for (const [leftTerm, leftFields] of Object.entries(left.matches)) { + const leftPattern = buildRegExpToken(leftTerm); + + // For each field matched with this left term + for (const leftField of leftFields) { + // Pull out the (left) field content + const content = extractField(record, leftField); + + // For each term in the right query + for (const [rightTerm, rightFields] of Object.entries(right.matches)) { + const rightPattern = buildRegExpToken(rightTerm); + // For each field matched with this right term + for (const rightField of rightFields) { + // Terms matching different fields can never be better than the bound + if (leftField !== rightField) { + continue; + } + + // Find all of the matches in the content for each pattern + const leftMatches = content.matchAll(leftPattern); + const rightMatches = content.matchAll(rightPattern); + + // Iterate over match pairs + for (const leftMatch of leftMatches) { + for (const rightMatch of rightMatches) { + // Find the ordered (start, stop) pairs for these two matches + const [start, stop] = + leftMatch.index < rightMatch.index + ? [leftMatch.index, rightMatch.index] + : [rightMatch.index, leftMatch.index]; + + // Identify how many token separators there are in this range + const numSeparators = Array.from( + content.slice(start, stop).matchAll(SPACE_OR_PUNCTUATION), + ).length; + + // Fast-path, can never beat 1! + if (numSeparators === 1) { + return 1; + } + + // Does this result improve our current proximity? + if (numSeparators < bestProximity) { + bestProximity = numSeparators; + } + } + } + } + } + } + } + return bestProximity; +} + +/** + * Compute the associative pair-wise proximity of a search result + * + * @param result - search result + * @param bound - upper bound on final proximity + */ +function wordsProximity(result: SearchResult, bound: number) { + const { queries } = result; + let proximity = 0; + for (let i = 0; i < queries.length - 1; i++) { + const left = queries[i]; + const right = queries[i + 1]; + + proximity += queryPairProximity(result, left, right, bound); + } + return Math.min(proximity, bound); +} + +/** + * Identify the best-matched attribute and the match position + * + * @param result - search result + */ +function matchedAttributePosition(result: SearchResult): { + attribute: AttributeType; + position: number | undefined; +} { + // Build mapping from fields to terms matching that field + // i.e. invert and flatten `result.queries[...].matches` + const fieldToTerms = new Map(); + result.queries.forEach((query) => { + Object.entries(query.matches).forEach(([term, fields]) => { + fields.forEach((field) => { + let terms = fieldToTerms.get(field); + if (!terms) { + terms = []; + fieldToTerms.set(field, terms); + } + terms.push(term); + }); + }); + }); + + // Find first field that we matched + const attribute = SEARCH_ATTRIBUTES_ORDERED.find((field) => fieldToTerms.has(field))!; + + let position; + // If this field is positional, find the start of the text match + if (POSITIONAL_SEARCH_ATTRIBUTES.includes(attribute)) { + // Find the terms that this field matches + const attributeTerms = fieldToTerms.get(attribute)!; + // Extract the field value + const value = extractField(result, attribute); + // Match each term against the field value, and extract the match position + const matchPositions = attributeTerms + .flatMap( + (term) => + Array.from(value.matchAll(buildRegExpToken(term))) as { + index: number; + }[], + ) + .map((match) => match.index); + // Find the smallest (earliest) match position + position = Math.min(...matchPositions); + } + // Otherwise, we don't care about the position + else { + position = undefined; + } + + return { attribute, position }; +} +/** + * Determine how many terms matched the corpus exactly + * + * @param result - search result + */ +function matchedExactWords(result: SearchResult) { + const allMatches = result.queries.flatMap( + // For each query (foo bar baz -> foo, then bar, then baz) + (query) => + Object.entries(query.matches) + .flatMap( + // For each (match, matched fields) pair in the query matches + ([match, fields]) => { + const pattern = buildRegExpToken(match); + return fields.flatMap( + // For each matched field + (field) => { + // Retrieve corpus and test for pattern + const value = extractField(result, field); + return Array.from(value.matchAll(pattern)).map((m) => (m ? query.term : undefined)); + }, + ); + }, + ) + .filter((item) => item), + ); + const uniqueMatches = new Set(allMatches); + return uniqueMatches.size; +} + +/** + * Determine the number of fuzzy matches in a search result + * + * @param result - search result + */ +function numberOfTypos(result: SearchResult): number { + return result.queries + .map((query) => { + const typoTerms = Object.keys(query.matches).filter((match) => match !== query.term); + return typoTerms.length; + }) + .reduce((sum, value) => sum + value); +} + +/** + * Rank a search result using Algolia-derived metrics + * + * @param result - search result + */ +function rankSearchResult(result: SearchResult): RankedSearchResult { + return { + ...result, + ranking: { + typos: numberOfTypos(result), + ...matchedAttributePosition(result), + proximity: wordsProximity(result, 8), // TODO + exact: matchedExactWords(result), + level: TYPE_WEIGHTS.get(result.type)!, + appearance: result.position, + }, + }; +} + +/** + * Compare ranked search results to prioritise higher rankings + * + * @param left - ranked search result + * @param right - ranked search result + */ +function cmpRankedSearchResults(left: RankedSearchResult, right: RankedSearchResult) { + const leftRank = left.ranking; + const rightRank = right.ranking; + + if (leftRank.typos !== rightRank.typos) { + return cmp(leftRank.typos, rightRank.typos); + } + if (leftRank.attribute !== rightRank.attribute) { + const i = SEARCH_ATTRIBUTES_ORDERED.findIndex((item) => item === leftRank.attribute); + const j = SEARCH_ATTRIBUTES_ORDERED.findIndex((item) => item === rightRank.attribute); + + return cmp(i, j); + } + if ( + leftRank.position != null && + rightRank.position != null && + leftRank.position !== rightRank.position + ) { + return cmp(leftRank.position, rightRank.position); + } + if (leftRank.proximity !== rightRank.proximity) { + return cmp(leftRank.proximity, rightRank.proximity); + } + if (leftRank.exact !== rightRank.exact) { + return cmp(rightRank.exact, leftRank.exact); + } + if (leftRank.level !== rightRank.level) { + return cmp(rightRank.level, leftRank.level); + } + if (leftRank.appearance !== rightRank.appearance) { + return cmp(leftRank.appearance, rightRank.appearance); + } + + return 0; +} + +/** + * Rank and then filter raw search results + */ +export function rankAndFilterResults(results: SearchResult[]): RankedSearchResult[] { + return results.map(rankSearchResult).sort(cmpRankedSearchResults); +} diff --git a/packages/search/src/search.ts b/packages/search/src/search.ts new file mode 100644 index 00000000..36a32234 --- /dev/null +++ b/packages/search/src/search.ts @@ -0,0 +1,7 @@ +export const SPACE_OR_PUNCTUATION = /[\n\r\p{Z}\p{P}]+/gu; +export function extractField(document: Record, fieldName: string) { + // Access nested fields + // eslint-disable-next-line @typescript-eslint/ban-ts-comment + // @ts-ignore + return fieldName.split('.').reduce((doc, key) => doc && doc[key], document); +} diff --git a/packages/search/src/types.ts b/packages/search/src/types.ts new file mode 100644 index 00000000..cac16691 --- /dev/null +++ b/packages/search/src/types.ts @@ -0,0 +1,76 @@ +// myst-spec-ext types +export type DocumentHierarchy = { + lvl1?: string; + lvl2?: string; + lvl3?: string; + lvl4?: string; + lvl5?: string; + lvl6?: string; +}; + +export type HeadingLevel = keyof DocumentHierarchy; + +export type SearchRecordBase = { + hierarchy: DocumentHierarchy; + url: string; + + position: number; +}; +export type HeadingRecord = SearchRecordBase & { + type: HeadingLevel; +}; +export type ContentRecord = SearchRecordBase & { + type: 'content'; + content: string; +}; + +export type SearchRecord = ContentRecord | HeadingRecord; + +export type MystSearchIndex = { + version: '1'; + records: SearchRecord[]; +}; +/// + +export type Query = { + term: string; // Raw search query term + matches: Record; // Match results (match token -> fields[]) +}; + +export type SearchResult = SearchRecord & { + id: string | number; + queries: Query[]; +}; + +export interface ISearch { + (query: string): SearchResult[]; +} + +/// Search ranking +export const SEARCH_ATTRIBUTES_ORDERED = [ + 'hierarchy.lvl1', + 'hierarchy.lvl2', + 'hierarchy.lvl3', + 'hierarchy.lvl4', + 'hierarchy.lvl5', + 'hierarchy.lvl6', + 'content', +] as const; + +export type AttributeType = (typeof SEARCH_ATTRIBUTES_ORDERED)[number]; + +/** + * Type describing a seach result that has ranking + */ +export type RankedSearchResult = SearchResult & { + ranking: { + // words: number; (Aloglia supports dropping words, we don't) + typos: number; + attribute: AttributeType; + position?: number; + proximity: number; + exact: number; + level: number; + appearance: number; + }; +}; diff --git a/packages/search/tsconfig.json b/packages/search/tsconfig.json new file mode 100644 index 00000000..ffd179e4 --- /dev/null +++ b/packages/search/tsconfig.json @@ -0,0 +1,5 @@ +{ + "extends": "../tsconfig/esm.json", + "include": ["."], + "exclude": ["dist", "node_modules", "src/**/*.spec.ts", "tests"] +} diff --git a/packages/site/package.json b/packages/site/package.json index 2154ae1c..b126ce87 100644 --- a/packages/site/package.json +++ b/packages/site/package.json @@ -26,7 +26,9 @@ "@myst-theme/frontmatter": "^0.12.0", "@myst-theme/jupyter": "^0.12.0", "@myst-theme/providers": "^0.12.0", + "@myst-theme/search": "^0.0.0", "@radix-ui/react-collapsible": "^1.0.3", + "@radix-ui/react-dialog": "^1.0.3", "classnames": "^2.3.2", "lodash.throttle": "^4.1.1", "myst-common": "^1.6.0", @@ -37,6 +39,7 @@ "nbtx": "^0.2.3", "node-cache": "^5.1.2", "node-fetch": "^2.6.11", + "string.prototype.matchall": "^4.0.11", "thebe-react": "0.4.10", "unist-util-select": "^4.0.1" }, diff --git a/packages/site/src/components/Navigation/Search.tsx b/packages/site/src/components/Navigation/Search.tsx new file mode 100644 index 00000000..b541e326 --- /dev/null +++ b/packages/site/src/components/Navigation/Search.tsx @@ -0,0 +1,144 @@ +import { useEffect, useState } from 'react'; +import { + MagnifyingGlassIcon, + DocumentTextIcon, + HashtagIcon, + PencilIcon, +} from '@heroicons/react/24/solid'; +import classNames from 'classnames'; +import * as Dialog from '@radix-ui/react-dialog'; +import type { ISearch, RankedSearchResult, HeadingLevel } from '@myst-theme/search'; +import { SPACE_OR_PUNCTUATION, rankAndFilterResults } from '@myst-theme/search'; +import { withBaseurl, useBaseurl } from '@myst-theme/providers'; + +function matchAll(text: string, pattern: RegExp) { + const matches = []; + let match; + while ((match = pattern.exec(text))) { + matches.push(match); + } + return matches; +} + +function highlightTitle(text: string, result: RankedSearchResult): string { + const allTerms = result.queries.flatMap((query) => Object.keys(query.matches)).join('|'); + const pattern = new RegExp(`\\b(${allTerms})\\b`, 'gi'); + const allMatches = Array.from(matchAll(text, pattern)).map((m) => m); + + const { index: start } = allMatches[0] ?? { index: 0 }; + + const tokens = [ + ...matchAll(text.slice(start), SPACE_OR_PUNCTUATION), + { index: text.length - start }, + ]; + + const limitedTokens = tokens.slice(0, 16); + const { index: offset } = limitedTokens[limitedTokens.length - 1]; + + let title = text.slice(start, start + offset).replace(pattern, '$&'); + if (start !== 0) { + title = `... ${title}`; + } + if (offset !== text.length) { + title = `${title} ...`; + } + + return title; +} + +function SearchItem({ result }: { result: RankedSearchResult }) { + const { hierarchy, type, url } = result; + const baseURL = useBaseurl(); + + // Generic "this document matched" + const kind = type === 'content' ? 'text' : type === 'lvl1' ? 'file' : 'heading'; + const title = highlightTitle( + result.type === 'content' ? result['content'] : hierarchy[type as HeadingLevel]!, + result, + ); + + const icon = + kind === 'file' ? ( + + ) : kind === 'heading' ? ( + + ) : ( + + ); + return ( + +
+ {icon} + +
+ + ); +} + +export function Search({ className, doSearch }: { className?: string; doSearch: ISearch }) { + const [searchResults, setSearchResults] = useState([]); + const [query, setQuery] = useState(); + useEffect(() => { + const timeoutId = setTimeout(() => { + if (query != undefined) { + const rankedResults = rankAndFilterResults(doSearch(query)); + setSearchResults(rankedResults); + } + }, 500); + return () => clearTimeout(timeoutId); + }, [doSearch, query]); + + const handleSearchChange = (event: React.ChangeEvent) => { + setQuery(event.target.value); + }; + return ( + + +
+ + +
+ + + + +
+ + +
+ +
    + {searchResults.map((result) => ( +
  • + {' '} + {' '} +
    • + ))} +
+ + + + + + + + ); +} diff --git a/packages/site/src/components/Navigation/ThemeButton.tsx b/packages/site/src/components/Navigation/ThemeButton.tsx index 2d97e3f7..1aea2ece 100644 --- a/packages/site/src/components/Navigation/ThemeButton.tsx +++ b/packages/site/src/components/Navigation/ThemeButton.tsx @@ -8,7 +8,7 @@ export function ThemeButton({ className = 'w-8 h-8 mx-3' }: { className?: string return (