Added micro parser
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LICENSE.md
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LICENSE.md
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The MIT License (MIT)
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Copyright (c) 2020 Dominic Masters.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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README.md
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README.md
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# Micro CSV
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Micro CSV Parser for JavaScript and Google Script. Designed to be small,
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efficient and no dependencies.
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## Usage
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Only one method is provided;
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```js
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const csv = 'Name,Age,Location\nDom,26,Sydney\nSteve,30,New York';
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parseCSV(csv, function(line) {
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console.log(line.name);//Dom then Steve
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})
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```
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To stay efficient we ask for a callback that is fired for every line parsed.
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src/index.js
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src/index.js
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function parseCSV(csv, onLine) {
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const lines = csv.split(/\r?\n/);
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let headers = null;
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for(let i = 0; i < lines.length; i++) {
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let line = lines[i].trim();
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if(!line.length) continue;
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let lineArray = [];
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let currentValue = '';
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let encapsulated = false;
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for(let j = 0; j < line.length; j++) {
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let c = line[j];
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if(!encapsulated && c == ',') {
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//Comma, make new cell
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lineArray.push(currentValue);
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currentValue = '';
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continue;
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} else if(c == '"') {
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//Quote, begin string encapsulation
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encapsulated = !encapsulated;
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continue;
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}
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currentValue += `${c}`;
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}
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lineArray.push(currentValue);
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//Is this the headers?
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if(!headers) {
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headers = lineArray;
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continue;
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}
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//This is a line
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let x = {};
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for(let j = 0; j < headers.length; j++) {
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x[headers[j]] = lineArray[j] || '';
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}
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onLine(x);
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}
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}
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