papaparse - npm Package Compare versions

Comparing version 5.4.1 to 5.5.0

.eslintrc.js

 module.exports = {
 	"parserOptions": {
-		"ecmaVersion": 5
+		"ecmaVersion": 6
 	},
 	"env": {
+		"es6": true,
 		"browser": true,
@@ -7,0 +8,0 @@ "worker": true,

package.json

 {
 	"name": "papaparse",
-	"version": "5.4.1",
+	"version": "5.5.0",
 	"description": "Fast and powerful CSV parser for the browser that supports web workers and streaming large files. Converts CSV to JSON and JSON to CSV.",
@@ -27,3 +27,3 @@ "keywords": [
 	],
-	"homepage": "http://papaparse.com",
+	"homepage": "https://www.papaparse.com/",
 	"repository": {
@@ -30,0 +30,0 @@ "type": "git",

papaparse.js

 /* @license
 Papa Parse
-v5.4.1
+v5.5.0
 https://github.com/mholt/PapaParse
@@ -380,4 +380,6 @@ License: MIT
 
-			if (typeof _config.escapeFormulae === 'boolean' || _config.escapeFormulae instanceof RegExp) {
-				_escapeFormulae = _config.escapeFormulae instanceof RegExp ? _config.escapeFormulae : /^[=+\-@\t\r].*$/;
+			if (_config.escapeFormulae instanceof RegExp) {
+				_escapeFormulae = _config.escapeFormulae;
+			} else if (typeof _config.escapeFormulae === 'boolean' && _config.escapeFormulae) {
+				_escapeFormulae =  /^[=+\-@\t\r].*$/;
 			}
@@ -488,2 +490,3 @@ }
 
+
 	/** ChunkStreamer is the base prototype for various streamer implementations. */
@@ -513,2 +516,12 @@ function ChunkStreamer(config)
 			// First chunk pre-processing
+			var skipFirstNLines = parseInt(this._config.skipFirstNLines) || 0;
+			if (this.isFirstChunk && skipFirstNLines > 0) {
+				var _newline = this._config.newline;
+				if (!_newline) {
+					var quoteChar = this._config.quoteChar || '"';
+					_newline = this._handle.guessLineEndings(chunk, quoteChar);
+				}
+				var splitChunk = chunk.split(_newline);
+				chunk = splitChunk.slice(skipFirstNLines).join(_newline);
+			}
 			if (this.isFirstChunk && isFunction(this._config.beforeFirstChunk))
@@ -526,3 +539,2 @@ {
 			this._partialLine = '';
-
 			var results = this._handle.parse(aggregate, this._baseIndex, !this._finished);
@@ -1082,3 +1094,3 @@
 			if (!_config.newline)
-				_config.newline = guessLineEndings(input, quoteChar);
+				_config.newline = this.guessLineEndings(input, quoteChar);
 
@@ -1157,2 +1169,28 @@ _delimiterError = false;
 
+		this.guessLineEndings = function(input, quoteChar)
+		{
+			input = input.substring(0, 1024 * 1024);	// max length 1 MB
+			// Replace all the text inside quotes
+			var re = new RegExp(escapeRegExp(quoteChar) + '([^]*?)' + escapeRegExp(quoteChar), 'gm');
+			input = input.replace(re, '');
+
+			var r = input.split('\r');
+
+			var n = input.split('\n');
+
+			var nAppearsFirst = (n.length > 1 && n[0].length < r[0].length);
+
+			if (r.length === 1 || nAppearsFirst)
+				return '\n';
+
+			var numWithN = 0;
+			for (var i = 0; i < r.length; i++)
+			{
+				if (r[i][0] === '\n')
+					numWithN++;
+			}
+
+			return numWithN >= r.length / 2 ? '\r\n' : '\r';
+		};
+
 		function testEmptyLine(s) {
@@ -1364,28 +1402,2 @@ return _config.skipEmptyLines === 'greedy' ? s.join('').trim() === '' : s.length === 1 && s[0].length === 0;
 
-		function guessLineEndings(input, quoteChar)
-		{
-			input = input.substring(0, 1024 * 1024);	// max length 1 MB
-			// Replace all the text inside quotes
-			var re = new RegExp(escapeRegExp(quoteChar) + '([^]*?)' + escapeRegExp(quoteChar), 'gm');
-			input = input.replace(re, '');
-
-			var r = input.split('\r');
-
-			var n = input.split('\n');
-
-			var nAppearsFirst = (n.length > 1 && n[0].length < r[0].length);
-
-			if (r.length === 1 || nAppearsFirst)
-				return '\n';
-
-			var numWithN = 0;
-			for (var i = 0; i < r.length; i++)
-			{
-				if (r[i][0] === '\n')
-					numWithN++;
-			}
-
-			return numWithN >= r.length / 2 ? '\r\n' : '\r';
-		}
-
 		function addError(type, code, msg, row)
@@ -1423,2 +1435,4 @@ {
 		var quoteChar;
+		var renamedHeaders = null;
+
 		if (config.quoteChar === undefined || config.quoteChar === null) {
@@ -1477,36 +1491,2 @@ quoteChar = '"';
 
-			// Rename headers if there are duplicates
-			if (config.header && !baseIndex)
-			{
-				var firstLine = input.split(newline)[0];
-				var headers = firstLine.split(delim);
-				var separator = '_';
-				var headerMap = [];
-				var headerCount = {};
-				var duplicateHeaders = false;
-
-				for (var j in headers) {
-					var header = headers[j];
-					if (isFunction(config.transformHeader))
-						header = config.transformHeader(header, j);
-					var headerName = header;
-
-					var count = headerCount[header] || 0;
-					if (count > 0) {
-						duplicateHeaders = true;
-						headerName = header + separator + count;
-					}
-					headerCount[header] = count + 1;
-					// In case it already exists, we add more separtors
-					while (headerMap.includes(headerName)) {
-						headerName = headerName + separator + count;
-					}
-					headerMap.push(headerName);
-				}
-				if (duplicateHeaders) {
-					var editedInput = input.split(newline);
-					editedInput[0] = headerMap.join(delim);
-					input = editedInput.join(newline);
-				}
-			}
 			if (fastMode || (fastMode !== false && input.indexOf(quoteChar) === -1))
@@ -1519,2 +1499,3 @@ {
 					cursor += row.length;
+
 					if (i !== rows.length - 1)
@@ -1714,3 +1695,2 @@ cursor += newline.length;
 
-
 			return finish();
@@ -1775,2 +1755,43 @@
 			{
+				if (config.header && !baseIndex && data.length)
+				{
+					var result = data[0];
+					var headerCount = {}; // To track the count of each base header
+					var usedHeaders = new Set(result); // To track used headers and avoid duplicates
+					var duplicateHeaders = false;
+
+					for (var i = 0; i < result.length; i++) {
+						var header = result[i];
+						if (isFunction(config.transformHeader))
+							header = config.transformHeader(header, i);
+
+						if (!headerCount[header]) {
+							headerCount[header] = 1;
+							result[i] = header;
+						} else {
+							var newHeader;
+							var suffixCount = headerCount[header];
+
+							// Find a unique new header
+							do {
+								newHeader = header + '_' + suffixCount;
+								suffixCount++;
+							} while (usedHeaders.has(newHeader));
+
+							usedHeaders.add(newHeader); // Mark this new Header as used
+							result[i] = newHeader;
+							headerCount[header]++;
+							duplicateHeaders = true;
+							if (renamedHeaders === null) {
+								renamedHeaders = {};
+							}
+							renamedHeaders[newHeader] = header;
+						}
+
+						usedHeaders.add(header); // Ensure the original header is marked as used
+					}
+					if (duplicateHeaders) {
+						console.warn('Duplicate headers found and renamed.');
+					}
+				}
 				return {
@@ -1784,3 +1805,4 @@ data: data,
 						truncated: !!stopped,
-						cursor: lastCursor + (baseIndex || 0)
+						cursor: lastCursor + (baseIndex || 0),
+						renamedHeaders: renamedHeaders
 					}
@@ -1928,3 +1950,2 @@ };
 	}
-
 	function isFunction(func)
@@ -1931,0 +1952,0 @@ {

papaparse.min.js

 /* @license
 Papa Parse
-v5.4.1
+v5.5.0
 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=f.IS_PAPA_WORKER||!1,a={},u=0,b={parse:function(e,t){var r=(t=t||{}).dynamicTyping||!1;J(r)&&(t.dynamicTypingFunction=r,r={});if(t.dynamicTyping=r,t.transform=!!J(t.transform)&&t.transform,t.worker&&b.WORKERS_SUPPORTED){var i=function(){if(!b.WORKERS_SUPPORTED)return!1;var e=(r=f.URL||f.webkitURL||null,i=s.toString(),b.BLOB_URL||(b.BLOB_URL=r.createObjectURL(new Blob(["var global = (function() { if (typeof self !== 'undefined') { return self; } if (typeof window !== 'undefined') { return window; } if (typeof global !== 'undefined') { return global; } return {}; })(); global.IS_PAPA_WORKER=true; ","(",i,")();"],{type:"text/javascript"})))),t=new f.Worker(e);var r,i;return t.onmessage=_,t.id=u++,a[t.id]=t}();return i.userStep=t.step,i.userChunk=t.chunk,i.userComplete=t.complete,i.userError=t.error,t.step=J(t.step),t.chunk=J(t.chunk),t.complete=J(t.complete),t.error=J(t.error),delete t.worker,void i.postMessage({input:e,config:t,workerId:i.id})}var n=null;b.NODE_STREAM_INPUT,"string"==typeof e?(e=function(e){if(65279===e.charCodeAt(0))return e.slice(1);return e}(e),n=t.download?new l(t):new p(t)):!0===e.readable&&J(e.read)&&J(e.on)?n=new g(t):(f.File&&e instanceof File||e instanceof Object)&&(n=new c(t));return n.stream(e)},unparse:function(e,t){var n=!1,_=!0,m=",",y="\r\n",s='"',a=s+s,r=!1,i=null,o=!1;!function(){if("object"!=typeof t)return;"string"!=typeof t.delimiter||b.BAD_DELIMITERS.filter(function(e){return-1!==t.delimiter.indexOf(e)}).length||(m=t.delimiter);("boolean"==typeof t.quotes||"function"==typeof t.quotes||Array.isArray(t.quotes))&&(n=t.quotes);"boolean"!=typeof t.skipEmptyLines&&"string"!=typeof t.skipEmptyLines||(r=t.skipEmptyLines);"string"==typeof t.newline&&(y=t.newline);"string"==typeof t.quoteChar&&(s=t.quoteChar);"boolean"==typeof t.header&&(_=t.header);if(Array.isArray(t.columns)){if(0===t.columns.length)throw new Error("Option columns is empty");i=t.columns}void 0!==t.escapeChar&&(a=t.escapeChar+s);("boolean"==typeof t.escapeFormulae||t.escapeFormulae instanceof RegExp)&&(o=t.escapeFormulae instanceof RegExp?t.escapeFormulae:/^[=+\-@\t\r].*$/)}();var u=new RegExp(Q(s),"g");"string"==typeof e&&(e=JSON.parse(e));if(Array.isArray(e)){if(!e.length||Array.isArray(e[0]))return h(null,e,r);if("object"==typeof e[0])return h(i||Object.keys(e[0]),e,r)}else if("object"==typeof e)return"string"==typeof e.data&&(e.data=JSON.parse(e.data)),Array.isArray(e.data)&&(e.fields||(e.fields=e.meta&&e.meta.fields||i),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 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i=e.toString().replace(u,a);return(r=r||!0===n||"function"==typeof n&&n(e,t)||Array.isArray(n)&&n[t]||function(e,t){for(var r=0;r<t.length;r++)if(-1<e.indexOf(t[r]))return!0;return!1}(i,b.BAD_DELIMITERS)||-1<i.indexOf(m)||" "===i.charAt(0)||" "===i.charAt(i.length-1))?s+i+s:i}}};if(b.RECORD_SEP=String.fromCharCode(30),b.UNIT_SEP=String.fromCharCode(31),b.BYTE_ORDER_MARK="\ufeff",b.BAD_DELIMITERS=["\r","\n",'"',b.BYTE_ORDER_MARK],b.WORKERS_SUPPORTED=!n&&!!f.Worker,b.NODE_STREAM_INPUT=1,b.LocalChunkSize=10485760,b.RemoteChunkSize=5242880,b.DefaultDelimiter=",",b.Parser=E,b.ParserHandle=r,b.NetworkStreamer=l,b.FileStreamer=c,b.StringStreamer=p,b.ReadableStreamStreamer=g,f.jQuery){var d=f.jQuery;d.fn.parse=function(o){var r=o.config||{},u=[];return this.each(function(e){if(!("INPUT"===d(this).prop("tagName").toUpperCase()&&"file"===d(this).attr("type").toLowerCase()&&f.FileReader)||!this.files||0===this.files.length)return!0;for(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(){return c&&h&&(k("Delimiter","UndetectableDelimiter","Unable to auto-detect delimiting character; defaulted to '"+w.DefaultDelimiter+"'"),h=!1),m.skipEmptyLines&&(c.data=c.data.filter(function(e){return!y(e)})),_()&&function(){if(!c)return;function e(e,t){U(m.transformHeader)&&(e=m.transformHeader(e,t)),l.push(e)}if(Array.isArray(c.data[0])){for(var t=0;_()&&t<c.data.length;t++)c.data[t].forEach(e);c.data.splice(0,1)}else c.data.forEach(e)}(),function(){if(!c||!m.header&&!m.dynamicTyping&&!m.transform)return c;function e(e,t){var i,r=m.header?{}:[];for(i=0;i<e.length;i++){var 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n={abort:function(){r=!0,m(t.workerId,{data:[],errors:[],meta:{aborted:!0}})},pause:y,resume:y};if(U(i.userStep)){for(var s=0;s<t.results.data.length&&(i.userStep({data:t.results.data[s],errors:t.results.errors,meta:t.results.meta},n),!r);s++);delete t.results}else U(i.userChunk)&&(i.userChunk(t.results,n,t.file),delete t.results)}t.finished&&!r&&m(t.workerId,t.results)}function m(e,t){var i=a[e];U(i.userComplete)&&i.userComplete(t),i.terminate(),delete a[e]}function y(){throw new Error("Not implemented.")}function b(e){if("object"!=typeof e||null===e)return e;var t=Array.isArray(e)?[]:{};for(var i in e)t[i]=b(e[i]);return t}function v(e,t){return function(){e.apply(t,arguments)}}function U(e){return"function"==typeof e}return d&&(f.onmessage=function(e){var t=e.data;void 0===w.WORKER_ID&&t&&(w.WORKER_ID=t.workerId);if("string"==typeof t.input)f.postMessage({workerId:w.WORKER_ID,results:w.parse(t.input,t.config),finished:!0});else if(f.File&&t.input instanceof File||t.input instanceof Object){var i=w.parse(t.input,t.config);i&&f.postMessage({workerId:w.WORKER_ID,results:i,finished:!0})}}),(u.prototype=Object.create(h.prototype)).constructor=u,(c.prototype=Object.create(h.prototype)).constructor=c,(p.prototype=Object.create(p.prototype)).constructor=p,(g.prototype=Object.create(h.prototype)).constructor=g,w});

player/player.js

@@ -111,2 +111,3 @@ var stepped = 0, chunks = 0, rows = 0;
 		beforeFirstChunk: undefined,
+		skipFirstNLines: $('#skipFirstNLines').val()
 	};
@@ -113,0 +114,0 @@

README.md

@@ -26,8 +26,18 @@ Parse CSV with JavaScript
 can be installed with the following command:
+```shell
+npm install papaparse
+```
 
-    npm install papaparse
-
 If you don't want to use npm, [papaparse.min.js](https://unpkg.com/papaparse@latest/papaparse.min.js) can be downloaded to your project source.
 
+Usage
+-----
+```js
+import Papa from 'papaparse';
 
+Papa.parse(file, config);
+    
+const csv = Papa.unparse(data[, config]);
+```
+
 Homepage & Demo
@@ -34,0 +44,0 @@ ----------------

tests/node-tests.js

@@ -35,2 +35,3 @@ "use strict";
 		"truncated": false,
+		renamedHeaders: null,
 		"cursor": 1209
@@ -37,0 +38,0 @@ });

No alert changes

Improved metrics

Total package byte prevSize

263032

increased by1.22%

Lines of code

6033

increased by1.48%

Number of lines in readme file

78

increased by14.71%

No dependency changes