forked from sheetjs/sheetjs
83 lines
2.4 KiB
JavaScript
83 lines
2.4 KiB
JavaScript
var attregexg=/(\w+)=((?:")([^"]*)(?:")|(?:')([^']*)(?:'))/g;
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var attregex=/(\w+)=((?:")(?:[^"]*)(?:")|(?:')(?:[^']*)(?:'))/;
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function parsexmltag(tag) {
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var words = tag.split(/\s+/);
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var z = {'0': words[0]};
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if(words.length === 1) return z;
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(tag.match(attregexg) || []).map(
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function(x){var y=x.match(attregex); z[y[1].replace(/^[a-zA-Z]*:/,"")] = y[2].substr(1,y[2].length-2); });
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return z;
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}
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function evert(obj) {
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var o = {};
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Object.keys(obj).forEach(function(k) { if(obj.hasOwnProperty(k)) o[obj[k]] = k; });
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return o;
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}
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var encodings = {
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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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var rencoding = evert(encodings);
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var rencstr = "&<>'\"".split("");
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// TODO: CP remap (need to read file version to determine OS)
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function unescapexml(text){
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var s = text + '';
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for(var y in encodings) s = s.replace(new RegExp(y,'g'), encodings[y]);
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return s.replace(/_x([0-9a-fA-F]*)_/g,function(m,c) {return _chr(parseInt(c,16));});
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}
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function escapexml(text){
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var s = text + '';
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rencstr.forEach(function(y){s=s.replace(new RegExp(y,'g'), rencoding[y]);});
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return s;
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}
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function parsexmlbool(value, tag) {
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switch(value) {
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case '0': case 0: case 'false': case 'FALSE': return false;
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case '1': case 1: case 'true': case 'TRUE': return true;
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default: throw "bad boolean value " + value + " in "+(tag||"?");
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}
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}
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var utf8read = function(orig) {
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var out = [], i = 0, c = 0, c1 = 0, c2 = 0, c3 = 0;
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while (i < orig.length) {
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c = orig.charCodeAt(i++);
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if (c < 128) out.push(_chr(c));
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else {
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c2 = orig.charCodeAt(i++);
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if (c>191 && c<224) out.push(_chr((c & 31) << 6 | c2 & 63));
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else {
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c3 = orig.charCodeAt(i++);
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out.push(_chr((c & 15) << 12 | (c2 & 63) << 6 | c3 & 63));
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}
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}
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}
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return out.join("");
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};
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// matches <foo>...</foo> extracts content
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function matchtag(f,g) {return new RegExp('<'+f+'(?: xml:space="preserve")?>([^\u2603]*)</'+f+'>',(g||"")+"m");}
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function parseVector(data) {
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var h = parsexmltag(data);
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var matches = data.match(new RegExp("<vt:" + h.baseType + ">(.*?)</vt:" + h.baseType + ">", 'g'))||[];
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if(matches.length != h.size) throw "unexpected vector length " + matches.length + " != " + h.size;
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var res = [];
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matches.forEach(function(x) {
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var v = x.replace(/<[/]?vt:variant>/g,"").match(/<vt:([^>]*)>(.*)</);
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res.push({v:v[2], t:v[1]});
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});
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return res;
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}
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function isval(x) { return typeof x !== "undefined" && x !== null; }
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