Ability to select workbooks. Fixes #4
This commit is contained in:
Eric Wood
parent
bd6fd498aa
commit
c5b4fa8f40
322
converter.js
322
converter.js
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@ -1,151 +1,215 @@
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excelParser = {
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latexEscape: function(text) {
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escapeRegExpr = function(str) {
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return str.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&");
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};
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!(function($) {
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"use strict";
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var specials = ['\\', '&', '%', '$', '#', '_', '{', '}', '~', '^'];
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$.each(specials, function() {
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var regexp = new RegExp(escapeRegExpr(this), 'g');
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text = text.replace(regexp, '\\' + this, 'g');
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});
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// Global variable with information on current workbooks. Don't judge me.
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var workbooks = {};
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return text;
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},
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// Another global to store LaTeX output. Don't judge me...again...
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var latexOutput = {};
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parseStringTable: function(data) {
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var doc = $(data);
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var stringTags = doc.find('si');
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var strings = $.map(stringTags, function(s,i) {
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return $(s).find('t').text();
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});
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var excelParser = {
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latexEscape: function(text) {
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var escapeRegExpr = function(str) {
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return str.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&");
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};
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return strings;
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},
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var specials = ['\\', '&', '%', '$', '#', '_', '{', '}', '~', '^'];
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$.each(specials, function() {
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var regexp = new RegExp(escapeRegExpr(this), 'g');
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text = text.replace(regexp, '\\' + this, 'g');
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});
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toLatex: function(table) {
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var max = 0;
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for(var i=0; i < table.length; i++) {
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if(table[i] && table[i].length > max) { max = table[i].length; }
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}
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return text;
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},
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var numCols = max;
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var args = [];
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for(var i=0; i < numCols; i++) {
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args[i] = 'l';
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}
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args = ' | ' + args.join(' | ') + ' | ';
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var latex = "\\begin{tabular}{" + args + "}\n\\hline\n";
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for(var i=0; i < table.length; i++) {
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var cols = table[i];
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// TODO: replace "&" with "\&"
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if(cols === undefined) { cols = []; }
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if(cols.length < numCols) {
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for(var x=cols.length; x < max; x++) {
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cols[x] = '\\ ';
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}
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parseStringTable: function(data) {
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var doc = $(data);
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var stringTags = doc.find('si');
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var strings = $.map(stringTags, function(s,i) {
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return $(s).find('t').text();
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});
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return strings;
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},
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toLatex: function(table) {
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var max = 0;
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for(var i=0; i < table.length; i++) {
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if(table[i] && table[i].length > max) { max = table[i].length; }
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}
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latex += "\t" + cols.join(' & ');
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latex += " \\\\ \\hline\n";
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}
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latex += "\\end{tabular}\n";
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$('#latex-output').val(latex);
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},
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processSheet: function(data, stringTable) {
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// get jQuery object out of the data for accessing stuffs
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var doc = $(data);
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var table = [];
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var rows = doc.find('sheetdata row');
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$.each(rows, function(i,row) {
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var rowNum = parseInt($(row).attr('r'));
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// get columns
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var cols = $(row).find('c');
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var colVals = $.map(cols, function(col,j) {
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var col = $(col);
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var val = excelParser.latexEscape(col.find('v').text());
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if(col.attr('t') == 's') {
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return excelParser.latexEscape(stringTable[parseInt(val)]);
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} else {
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return val;
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var numCols = max;
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var args = [];
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for(i=0; i < numCols; i++) {
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args[i] = 'l';
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}
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args = ' | ' + args.join(' | ') + ' | ';
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var latex = "\\begin{tabular}{" + args + "}\n\\hline\n";
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for(i=0; i < table.length; i++) {
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var cols = table[i];
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// TODO: replace "&" with "\&"
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if(cols === undefined) { cols = []; }
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if(cols.length < numCols) {
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for(var x=cols.length; x < max; x++) {
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cols[x] = '\\ ';
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}
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}
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latex += "\t" + cols.join(' & ');
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latex += " \\\\ \\hline\n";
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}
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latex += "\\end{tabular}\n";
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return latex;
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},
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processSheet: function(data, stringTable) {
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// get jQuery object out of the data for accessing stuffs
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var doc = $(data);
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var table = [];
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var rows = doc.find('sheetdata row');
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$.each(rows, function(i,row) {
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var rowNum = parseInt($(row).attr('r'), 10);
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// get columns
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var cols = $(row).find('c');
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var colVals = $.map(cols, function(col,j) {
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col = $(col);
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var val = excelParser.latexEscape(col.find('v').text());
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if(col.attr('t') == 's') {
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return excelParser.latexEscape(stringTable[parseInt(val, 10)]);
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} else {
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return val;
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}
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});
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table[rowNum-1] = colVals;
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});
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table[rowNum-1] = colVals;
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});
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return table;
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},
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return table;
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},
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handleSheet: function(entries, stringTable) {
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// filter out all files that aren't worksheets
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var sheets = $.grep(entries, function(n,i) {
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return (/^xl\/worksheets\/.*\.xml$/.test(n.filename)) && (!/^xl\/worksheets\/_rels/.test(n.filename));
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});
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handleSheets: function(entries, stringTable) {
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// get the workbook.xml file, which contains the names of all workbooks
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var workbookMeta = entries.filter(function(entry) {
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return entry.filename === 'xl/workbook.xml';
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})[0];
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// for now, only process the first sheet
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// TODO: give the user a choice of which sheet to process
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var sheet = sheets[0];
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sheet.getData(new zip.TextWriter(), function(text) {
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var table = excelParser.processSheet(text, stringTable);
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excelParser.toLatex(table);
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});
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},
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// filter out all files that aren't worksheets
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var sheets = $.grep(entries, function(n,i) {
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var filter1 = /^xl\/worksheets\/.*\.xml$/;
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var filter2 = /^xl\/worksheets\/_rels/;
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return (filter1.test(n.filename)) && (!filter2.test(n.filename));
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});
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handleFile: function(event) {
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// prevent default browser behavior
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event.stopPropagation();
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event.preventDefault();
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// get file information
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var files = event.dataTransfer.files;
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if(!files.length) {
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// no files were given somehow...
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$('#latex-output').val('No files were given...try again?');
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return false;
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}
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var blob = files[0];
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// unzip and process files
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zip.createReader(new zip.BlobReader(blob), function(reader) {
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reader.getEntries(function(entries) {
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if(!entries.length) { return false; }
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// get the string table
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var stFile = $.grep(entries, function(n,i) {
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return /^xl\/sharedStrings\.xml$/.test(n.filename);
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})[0];
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stFile.getData(new zip.TextWriter(), function(text) {
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var stringTable = excelParser.parseStringTable(text);
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excelParser.handleSheet(entries, stringTable);
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// read the workbook meta data to get the names and crap
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workbookMeta.getData(new zip.TextWriter(), function(text) {
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var doc = $(text);
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// extract the names of the workbooks and their IDs for use later on...
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$.each(doc.find('sheets sheet'), function(i, tag) {
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tag = $(tag);
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var id = tag.attr('sheetId');
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var name = tag.attr('name');
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workbooks[id] = name;
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});
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excelParser.updateSelect();
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// iterate over all sheets and convert them to LaTeX
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$.each(sheets, function(_, sheet) {
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// the ID of the spreadsheet can only be found in the filename apparently :P
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var id = sheet.filename.match(/(\d)\.xml/)[1];
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sheet.getData(new zip.TextWriter(), function(text) {
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var table = excelParser.processSheet(text, stringTable);
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var latex = excelParser.toLatex(table);
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latexOutput[id] = latex;
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// I apologize for the hack :(
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if(id === '1') {
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$('#latex-output').val(latex);
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}
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});
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});
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});
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});
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},
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},
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init: function() {
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// hack because of jQuery shenanigans
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jQuery.event.props.push('dataTransfer');
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$('body').bind('dragover', function(event) {
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handleFiles: function(event) {
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// prevent default browser behavior
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event.stopPropagation();
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event.preventDefault();
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event.dataTransfer.dropEffect = 'copy';
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});
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$('body').bind('drop', excelParser.handleFile);
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}
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};
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// get file information
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var files = event.dataTransfer.files;
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if(!files.length) {
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// no files were given somehow...
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$('#latex-output').val('No files were given...try again?');
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return false;
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}
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$(function() {
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zip.workerScriptsPath = 'zip/';
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excelParser.init();
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});
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var blob = files[0];
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// unzip and process files
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zip.createReader(new zip.BlobReader(blob), function(reader) {
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reader.getEntries(function(entries) {
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if(!entries.length) { return false; }
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// get the string table
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var stFile = $.grep(entries, function(n,i) {
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var regexp = /^xl\/sharedStrings\.xml$/;
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return regexp.test(n.filename);
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})[0];
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stFile.getData(new zip.TextWriter(), function(text) {
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var stringTable = excelParser.parseStringTable(text);
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excelParser.handleSheets(entries, stringTable);
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});
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return undefined;
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});
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});
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return undefined;
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},
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updateSelect: function() {
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var select = $('#workbook');
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// clear existing option tags
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select.empty();
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for(var id in workbooks) {
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var tag = $('<option value="' + id + '">' + workbooks[id] + '</option>');
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tag.appendTo(select);
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}
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},
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init: function() {
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// hack because of jQuery shenanigans
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jQuery.event.props.push('dataTransfer');
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$('body').bind('dragover', function(event) {
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event.stopPropagation();
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event.preventDefault();
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event.dataTransfer.dropEffect = 'copy';
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});
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$('body').bind('drop', excelParser.handleFiles);
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// when a new workbook is selected, do stuff!
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$('#workbook').change(function(event) {
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var select = $(event.target);
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var output = latexOutput[select.val()];
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$('#latex-output').val(output);
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});
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}
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};
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$(function() {
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zip.workerScriptsPath = 'zip/';
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excelParser.init();
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});
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})(window.jQuery);
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@ -25,6 +25,9 @@
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<h1 class="title">excel => LaTeX</h1>
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<h4 class="info">Drag any .xlsx file onto the page to extract data and convert it into a LaTeX table</h4>
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<div class="content">
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<label for="workbook">Workbook:</label>
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<select id="workbook" name="workbook"></select>
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<textarea id="latex-output" readonly="readonly"></textarea>
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<p>Mostly untested, so if you find a bug or have a feature request, <a href="https://github.com/eric-wood/excel2latex/issues">let me know!</a>
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<p class="disclaimer">Note: this only works with .xlsx files. That means .xls files will <b>not</b> work.</p>
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@ -32,7 +35,7 @@
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<p>Lovingly hacked together by <a href="http://ericwood.org">Eric Wood</a></p>
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</div>
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</div>
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<script src="//ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
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<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
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<script type="text/javascript" src="zip/zip.js"></script>
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<script type="text/javascript" src="converter.js"></script>
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</body>
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