From c0acd22ed2ef9f0c02e6bedef230a9431b46d194 Mon Sep 17 00:00:00 2001 From: theLAZYmd Date: Wed, 3 Nov 2021 16:25:32 +0000 Subject: [PATCH 1/4] Implement https://github.com/mholt/PapaParse/issues/612 --- docs/docs.html | 15 +++++++++++++-- papaparse.js | 20 +++++++++++--------- papaparse.min.js | 2 +- tests/test-cases.js | 9 +++++++++ 4 files changed, 34 insertions(+), 12 deletions(-) diff --git a/docs/docs.html b/docs/docs.html index c2d82bd6..6002e5cc 100644 --- a/docs/docs.html +++ b/docs/docs.html @@ -510,8 +510,19 @@
Config Options
transformHeader - A function to apply on each header. Requires header to be true. The function receives the header as its first argument and the index as second.
- Only available starting with version 5.0. + A function to apply on each header. Requires header to be true. The function receives the header as its first argument and the index (the column number) as second. When used in conjunction with config.headerLines, the function receives a third and fourth parameter which are: + + + + + + headerLines + + + The number of rows which will be used to transform into a header, and removed from the rest of the data. Requires header to be true. Default 1. diff --git a/papaparse.js b/papaparse.js index 057a16cb..c1ebaff7 100755 --- a/papaparse.js +++ b/papaparse.js @@ -1180,24 +1180,26 @@ License: MIT if (!_results) return; - function addHeader(header, i) + var headerLines = _config.headerLines || 1; + function addHeader(j, header, i) { if (isFunction(_config.transformHeader)) - header = _config.transformHeader(header, i); + header = _config.transformHeader(header, i, _fields[i] || '', j); - _fields.push(header); + _fields[i] = header; } - if (Array.isArray(_results.data[0])) { - for (var i = 0; needsHeaderRow() && i < _results.data.length; i++) - _results.data[i].forEach(addHeader); - - _results.data.splice(0, 1); + for (var j = 0; j < Math.min(headerLines, _results.data.length); j++) + { + // A function which takes two arguments (header, i) where j is set by the fact it is called in this loop. It then calls addHeader() with all three arguments + _results.data[j].forEach(addHeader.bind(null, j)); + } + _results.data.splice(0, headerLines); } // if _results.data[0] is not an array, we are in a step where _results.data is the row. else - _results.data.forEach(addHeader); + _results.data.forEach(addHeader.bind(null, 0)); } function shouldApplyDynamicTyping(field) { diff --git a/papaparse.min.js b/papaparse.min.js index 96aced42..0387ccda 100644 --- a/papaparse.min.js +++ b/papaparse.min.js @@ -4,4 +4,4 @@ v5.3.1 https://github.com/mholt/PapaParse License: MIT */ -!function(e,t){"function"==typeof define&&define.amd?define([],t):"object"==typeof module&&"undefined"!=typeof exports?module.exports=t():e.Papa=t()}(this,function s(){"use strict";var f="undefined"!=typeof self?self:"undefined"!=typeof window?window:void 0!==f?f:{};var n=!f.document&&!!f.postMessage,o=n&&/blob:/i.test((f.location||{}).protocol),a={},h=0,b={parse:function(e,t){var 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e.data&&(e.data=JSON.parse(e.data)),Array.isArray(e.data)&&(e.fields||(e.fields=e.meta&&e.meta.fields),e.fields||(e.fields=Array.isArray(e.data[0])?e.fields:"object"==typeof e.data[0]?Object.keys(e.data[0]):[]),Array.isArray(e.data[0])||"object"==typeof e.data[0]||(e.data=[e.data])),u(e.fields||[],e.data||[],i);throw new Error("Unable to serialize unrecognized input");function u(e,t,i){var r="";"string"==typeof e&&(e=JSON.parse(e)),"string"==typeof t&&(t=JSON.parse(t));var n=Array.isArray(e)&&0=this._config.preview;if(o)f.postMessage({results:n,workerId:b.WORKER_ID,finished:a});else if(M(this._config.chunk)&&!t){if(this._config.chunk(n,this._handle),this._handle.paused()||this._handle.aborted())return void(this._halted=!0);n=void 0,this._completeResults=void 0}return 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p=m.step;m.step=function(e){if(c=e,_())g();else{if(g(),0===c.data.length)return;i+=e.data.length,m.preview&&i>m.preview?o.abort():(c.data=c.data[0],p(c,t))}}}function y(e){return"greedy"===m.skipEmptyLines?""===e.join("").trim():1===e.length&&0===e[0].length}function g(){if(c&&h&&(k("Delimiter","UndetectableDelimiter","Unable to auto-detect delimiting character; defaulted to '"+b.DefaultDelimiter+"'"),h=!1),m.skipEmptyLines)for(var e=0;e=l.length?"__parsed_extra":l[i]),m.transform&&(s=m.transform(s,n)),s=v(n,s),"__parsed_extra"===n?(r[n]=r[n]||[],r[n].push(s)):r[n]=s}return m.header&&(i>l.length?k("FieldMismatch","TooManyFields","Too many fields: expected "+l.length+" fields but parsed "+i,f+t):i=r.length/2?"\r\n":"\r"}(e,r)),h=!1,m.delimiter)M(m.delimiter)&&(m.delimiter=m.delimiter(e),c.meta.delimiter=m.delimiter);else{var n=function(e,t,i,r,n){var s,a,o,h;n=n||[",","\t","|",";",b.RECORD_SEP,b.UNIT_SEP];for(var u=0;u=D)return C(!0)}else 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this._config.step||this._config.chunk||(this._completeResults.data=this._completeResults.data.concat(n.data),this._completeResults.errors=this._completeResults.errors.concat(n.errors),this._completeResults.meta=n.meta),this._completed||!a||!j(this._config.complete)||n&&n.meta.aborted||(this._config.complete(this._completeResults,this._input),this._completed=!0),a||n&&n.meta.paused||this._nextChunk(),n}this._halted=!0},this._sendError=function(e){j(this._config.error)?this._config.error(e):o&&this._config.error&&f.postMessage({workerId:b.WORKER_ID,error:e,finished:!1})}}function l(e){var r;(e=e||{}).chunkSize||(e.chunkSize=b.RemoteChunkSize),u.call(this,e),this._nextChunk=n?function(){this._readChunk(),this._chunkLoaded()}:function(){this._readChunk()},this.stream=function(e){this._input=e,this._nextChunk()},this._readChunk=function(){if(this._finished)this._chunkLoaded();else{if(r=new 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i;u.call(this,e=e||{}),this.stream=function(e){return i=e,this._nextChunk()},this._nextChunk=function(){if(!this._finished){var e,t=this._config.chunkSize;return i=t?(e=i.substring(0,t),i.substring(t)):(e=i,""),this._finished=!i,this.parseChunk(e)}}}function g(e){u.call(this,e=e||{});var t=[],i=!0,r=!1;this.pause=function(){u.prototype.pause.apply(this,arguments),this._input.pause()},this.resume=function(){u.prototype.resume.apply(this,arguments),this._input.resume()},this.stream=function(e){this._input=e,this._input.on("data",this._streamData),this._input.on("end",this._streamEnd),this._input.on("error",this._streamError)},this._checkIsFinished=function(){r&&1===t.length&&(this._finished=!0)},this._nextChunk=function(){this._checkIsFinished(),t.length?this.parseChunk(t.shift()):i=!0},this._streamData=v(function(e){try{t.push("string"==typeof 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p=m.step;m.step=function(e){if(c=e,_())g();else{if(g(),0===c.data.length)return;i+=e.data.length,m.preview&&i>m.preview?o.abort():(c.data=c.data[0],p(c,t))}}}function y(e){return"greedy"===m.skipEmptyLines?""===e.join("").trim():1===e.length&&0===e[0].length}function g(){if(c&&h&&(k("Delimiter","UndetectableDelimiter","Unable to auto-detect delimiting character; defaulted to '"+b.DefaultDelimiter+"'"),h=!1),m.skipEmptyLines)for(var e=0;e=l.length?"__parsed_extra":l[i]),m.transform&&(s=m.transform(s,n)),s=v(n,s),"__parsed_extra"===n?(r[n]=r[n]||[],r[n].push(s)):r[n]=s}return m.header&&(i>l.length?k("FieldMismatch","TooManyFields","Too many fields: expected "+l.length+" fields but parsed "+i,f+t):i=r.length/2?"\r\n":"\r"}(e,r)),h=!1,m.delimiter)j(m.delimiter)&&(m.delimiter=m.delimiter(e),c.meta.delimiter=m.delimiter);else{var n=function(e,t,i,r,n){var s,a,o,h;n=n||[",","\t","|",";",b.RECORD_SEP,b.UNIT_SEP];for(var u=0;u=D)return C(!0)}else 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if(t.results&&t.results.data){var n={abort:function(){r=!0,m(t.workerId,{data:[],errors:[],meta:{aborted:!0}})},pause:y,resume:y};if(j(i.userStep)){for(var s=0;s Date: Wed, 3 Nov 2021 17:52:36 +0000 Subject: [PATCH 2/4] Changed up the parameters to include 'arr' the row data arr after some practical use --- docs/docs.html | 5 +++-- papaparse.js | 4 ++-- papaparse.min.js | 2 +- tests/test-cases.js | 2 +- 4 files changed, 7 insertions(+), 6 deletions(-) diff --git a/docs/docs.html b/docs/docs.html index 6002e5cc..691ee64a 100644 --- a/docs/docs.html +++ b/docs/docs.html @@ -512,8 +512,9 @@
Config Options
A function to apply on each header. Requires header to be true. The function receives the header as its first argument and the index (the column number) as second. When used in conjunction with config.headerLines, the function receives a third and fourth parameter which are:
    -
  • the existing header for that column based on previous lines iteration ('' if no previous lines)
    • -
  • the rowNumber (0 for the first line)
    • +
  • arr: the string array of data for that row
    • +
  • acc: the existing header for that column based on previous lines iteration ('' if no previous lines)
    • +
  • j: the rowNumber (0 for the first line)
diff --git a/papaparse.js b/papaparse.js index c1ebaff7..28ba98a2 100755 --- a/papaparse.js +++ b/papaparse.js @@ -1181,10 +1181,10 @@ License: MIT return; var headerLines = _config.headerLines || 1; - function addHeader(j, header, i) + function addHeader(j, header, i, arr) { if (isFunction(_config.transformHeader)) - header = _config.transformHeader(header, i, _fields[i] || '', j); + header = _config.transformHeader(header, i, arr, _fields[i] || '', j); _fields[i] = header; } diff --git a/papaparse.min.js b/papaparse.min.js index 0387ccda..4efded90 100644 --- a/papaparse.min.js +++ b/papaparse.min.js @@ -4,4 +4,4 @@ v5.3.1 https://github.com/mholt/PapaParse License: MIT */ -!function(e,t){"function"==typeof define&&define.amd?define([],t):"object"==typeof module&&"undefined"!=typeof exports?module.exports=t():e.Papa=t()}(this,function s(){"use strict";var f="undefined"!=typeof self?self:"undefined"!=typeof window?window:void 0!==f?f:{};var 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p=m.step;m.step=function(e){if(c=e,_())g();else{if(g(),0===c.data.length)return;i+=e.data.length,m.preview&&i>m.preview?o.abort():(c.data=c.data[0],p(c,t))}}}function y(e){return"greedy"===m.skipEmptyLines?""===e.join("").trim():1===e.length&&0===e[0].length}function g(){if(c&&h&&(k("Delimiter","UndetectableDelimiter","Unable to auto-detect delimiting character; defaulted to '"+b.DefaultDelimiter+"'"),h=!1),m.skipEmptyLines)for(var e=0;e=l.length?"__parsed_extra":l[i]),m.transform&&(s=m.transform(s,n)),s=v(n,s),"__parsed_extra"===n?(r[n]=r[n]||[],r[n].push(s)):r[n]=s}return m.header&&(i>l.length?k("FieldMismatch","TooManyFields","Too many fields: expected "+l.length+" fields but parsed "+i,f+t):i=r.length/2?"\r\n":"\r"}(e,r)),h=!1,m.delimiter)j(m.delimiter)&&(m.delimiter=m.delimiter(e),c.meta.delimiter=m.delimiter);else{var n=function(e,t,i,r,n){var s,a,o,h;n=n||[",","\t","|",";",b.RECORD_SEP,b.UNIT_SEP];for(var u=0;u=D)return C(!0)}else 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if(t.results&&t.results.data){var n={abort:function(){r=!0,m(t.workerId,{data:[],errors:[],meta:{aborted:!0}})},pause:y,resume:y};if(j(i.userStep)){for(var s=0;s Date: Thu, 4 Nov 2021 13:57:29 +0000 Subject: [PATCH 3/4] Reverted minifile --- papaparse.min.js | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/papaparse.min.js b/papaparse.min.js index 4efded90..96aced42 100644 --- a/papaparse.min.js +++ b/papaparse.min.js @@ -4,4 +4,4 @@ v5.3.1 https://github.com/mholt/PapaParse License: MIT */ -!function(e,t){"function"==typeof define&&define.amd?define([],t):"object"==typeof module&&"undefined"!=typeof exports?module.exports=t():e.Papa=t()}(this,function s(){"use strict";var f="undefined"!=typeof self?self:"undefined"!=typeof window?window:void 0!==f?f:{};var n=!f.document&&!!f.postMessage,o=n&&/blob:/i.test((f.location||{}).protocol),a={},h=0,b={parse:function(e,t){var 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p=m.step;m.step=function(e){if(c=e,_())g();else{if(g(),0===c.data.length)return;i+=e.data.length,m.preview&&i>m.preview?o.abort():(c.data=c.data[0],p(c,t))}}}function y(e){return"greedy"===m.skipEmptyLines?""===e.join("").trim():1===e.length&&0===e[0].length}function g(){if(c&&h&&(k("Delimiter","UndetectableDelimiter","Unable to auto-detect delimiting character; defaulted to '"+b.DefaultDelimiter+"'"),h=!1),m.skipEmptyLines)for(var e=0;e=l.length?"__parsed_extra":l[i]),m.transform&&(s=m.transform(s,n)),s=v(n,s),"__parsed_extra"===n?(r[n]=r[n]||[],r[n].push(s)):r[n]=s}return m.header&&(i>l.length?k("FieldMismatch","TooManyFields","Too many fields: expected "+l.length+" fields but parsed "+i,f+t):i=r.length/2?"\r\n":"\r"}(e,r)),h=!1,m.delimiter)M(m.delimiter)&&(m.delimiter=m.delimiter(e),c.meta.delimiter=m.delimiter);else{var n=function(e,t,i,r,n){var s,a,o,h;n=n||[",","\t","|",";",b.RECORD_SEP,b.UNIT_SEP];for(var u=0;u=D)return C(!0)}else 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if(t.results&&t.results.data){var n={abort:function(){r=!0,m(t.workerId,{data:[],errors:[],meta:{aborted:!0}})},pause:y,resume:y};if(M(i.userStep)){for(var s=0;s Date: Thu, 4 Nov 2021 14:01:49 +0000 Subject: [PATCH 4/4] Updated docs to be more succint and add versioning --- docs/docs.html | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/docs/docs.html b/docs/docs.html index 691ee64a..43645f33 100644 --- a/docs/docs.html +++ b/docs/docs.html @@ -510,12 +510,16 @@
Config Options
transformHeader - A function to apply on each header. Requires header to be true. The function receives the header as its first argument and the index (the column number) as second. When used in conjunction with config.headerLines, the function receives a third and fourth parameter which are: + A function to apply on each header. Requires header to be true. The arguments are:
    +
  • header: the current header text, as parsed from the appropriate cell in the specified header row
    • +
  • index: the column number of the header text (0 for first column)
  • arr: the string array of data for that row
  • acc: the existing header for that column based on previous lines iteration ('' if no previous lines)
  • j: the rowNumber (0 for the first line)
+ Only available starting with version 5.0. + The latter three parameters (arr, acc, j) are only available when used in conjunction with config.headerLines and from version 5.4+. @@ -524,6 +528,7 @@
Config Options
The number of rows which will be used to transform into a header, and removed from the rest of the data. Requires header to be true. Default 1. + Only available starting with veresion 5.4.