sheetjs/ods.js

/* ods.js (C) 2014 SheetJS -- http://sheetjs.com */
/* vim: set ts=2: */
/*jshint -W041 */
var ODS = {};
(function make_ods(ODS) {
/* Open Document Format for Office Applications (OpenDocument) Version 1.2 */
var get_utils = function() {
	if(typeof XLSX !== 'undefined') return XLSX.utils;
	if(typeof module !== "undefined" && typeof require !== 'undefined') return require('xl' + 'sx').utils;
	throw new Error("Cannot find XLSX utils");
};
var has_buf = (typeof Buffer !== 'undefined');
function getdata(data) {
	if(!data) return null;
	if(data.data) return data.data;
	if(data.asNodeBuffer && has_buf) return data.asNodeBuffer().toString('binary');
	if(data.asBinary) return data.asBinary();
	if(data._data && data._data.getContent) return cc2str(Array.prototype.slice.call(data._data.getContent(),0));
	return null;
}

function safegetzipfile(zip, file) {
	var f = file; if(zip.files[f]) return zip.files[f];
	f = file.toLowerCase(); if(zip.files[f]) return zip.files[f];
	f = f.replace(/\//g,'\\'); if(zip.files[f]) return zip.files[f];
	return null;
}

function getzipfile(zip, file) {
	var o = safegetzipfile(zip, file);
	if(o == null) throw new Error("Cannot find file " + file + " in zip");
	return o;
}

function getzipdata(zip, file, safe) {
	if(!safe) return getdata(getzipfile(zip, file));
	if(!file) return null;
	try { return getzipdata(zip, file); } catch(e) { return null; }
}

var _fs, jszip;
if(typeof JSZip !== 'undefined') jszip = JSZip;
if (typeof exports !== 'undefined') {
	if (typeof module !== 'undefined' && module.exports) {
		if(has_buf && typeof jszip === 'undefined') jszip = require('js'+'zip');
		if(typeof jszip === 'undefined') jszip = require('./js'+'zip').JSZip;
		_fs = require('f'+'s');
	}
}
var attregexg=/\b[\w:-]+=["'][^"]*['"]/g;
var tagregex=/<[^>]*>/g;
var nsregex=/<\w*:/, nsregex2 = /<(\/?)\w+:/;
function parsexmltag(tag, skip_root) {
	var z = [];
	var eq = 0, c = 0;
	for(; eq !== tag.length; ++eq) if((c = tag.charCodeAt(eq)) === 32 || c === 10 || c === 13) break;
	if(!skip_root) z[0] = tag.substr(0, eq);
	if(eq === tag.length) return z;
	var m = tag.match(attregexg), j=0, w="", v="", i=0, q="", cc="";
	if(m) for(i = 0; i != m.length; ++i) {
		cc = m[i];
		for(c=0; c != cc.length; ++c) if(cc.charCodeAt(c) === 61) break;
		q = cc.substr(0,c); v = cc.substring(c+2, cc.length-1);
		for(j=0;j!=q.length;++j) if(q.charCodeAt(j) === 58) break;
		if(j===q.length) z[q] = v;
		else z[(j===5 && q.substr(0,5)==="xmlns"?"xmlns":"")+q.substr(j+1)] = v;
	}
	return z;
}
function strip_ns(x) { return x.replace(nsregex2, "<$1"); }

var encodings = {
	'&quot;': '"',
	'&apos;': "'",
	'&gt;': '>',
	'&lt;': '<',
	'&amp;': '&'
};
var rencoding = {
	'"': '&quot;',
	"'": '&apos;',
	'>': '&gt;',
	'<': '&lt;',
	'&': '&amp;'
};
var rencstr = "&<>'\"".split("");

// TODO: CP remap (need to read file version to determine OS)
var encregex = /&[a-z]*;/g, coderegex = /_x([\da-fA-F]+)_/g;
function unescapexml(text){
	var s = text + '';
	return s.replace(encregex, function($$) { return encodings[$$]; }).replace(coderegex,function(m,c) {return String.fromCharCode(parseInt(c,16));});
}
var decregex=/[&<>'"]/g, charegex = /[\u0000-\u0008\u000b-\u001f]/g;
function escapexml(text){
	var s = text + '';
	return s.replace(decregex, function(y) { return rencoding[y]; }).replace(charegex,function(s) { return "_x" + ("000"+s.charCodeAt(0).toString(16)).substr(-4) + "_";});
}

function parsexmlbool(value, tag) {
	switch(value) {
		case '1': case 'true': case 'TRUE': return true;
		/* case '0': case 'false': case 'FALSE':*/
		default: return false;
	}
}

function datenum(v) {
	var epoch = Date.parse(v);
	return (epoch + 2209161600000) / (24 * 60 * 60 * 1000);
}

/* ISO 8601 Duration */
function parse_isodur(s) {
	var sec = 0, mt = 0, time = false;
	var m = s.match(/P([0-9\.]+Y)?([0-9\.]+M)?([0-9\.]+D)?T([0-9\.]+H)?([0-9\.]+M)?([0-9\.]+S)?/);
	if(!m) throw new Error("|" + s + "| is not an ISO8601 Duration");
	for(var i = 1; i != m.length; ++i) {
		if(!m[i]) continue;
		mt = 1;
		if(i > 3) time = true;
		switch(m[i].substr(m[i].length-1)) {
			case 'Y':
				throw new Error("Unsupported ISO Duration Field: " + m[i].substr(m[i].length-1));
			case 'D': mt *= 24;
				/* falls through */
			case 'H': mt *= 60;
				/* falls through */
			case 'M':
				if(!time) throw new Error("Unsupported ISO Duration Field: M");
				else mt *= 60;
				/* falls through */
			case 'S': break;
		}
		sec += mt * parseInt(m[i], 10);
	}
	return sec;
}
/* copied from js-xls (C) SheetJS Apache2 license */
function xlml_normalize(d) {
	if(has_buf && Buffer.isBuffer(d)) return d.toString('utf8');
	if(typeof d === 'string') return d;
	throw "badf";
}

var xlmlregex = /<(\/?)([a-z0-9]*:|)([\w-]+)[^>]*>/mg;
/* Part 3 Section 4 Manifest File */
var CT_ODS = "application/vnd.oasis.opendocument.spreadsheet";
var parse_manifest = function(d, opts) {
	var str = xlml_normalize(d);
	var Rn;
	var FEtag;
	while((Rn = xlmlregex.exec(str))) switch(Rn[3]) {
		case 'manifest': break; // 4.2 <manifest:manifest>
		case 'file-entry': // 4.3 <manifest:file-entry>
			FEtag = parsexmltag(Rn[0]);
			if(FEtag.path == '/' && FEtag.type !== CT_ODS) throw new Error("This OpenDocument is not a spreadsheet");
			break;
		case 'encryption-data': // 4.4 <manifest:encryption-data>
		case 'algorithm': // 4.5 <manifest:algorithm>
		case 'start-key-generation': // 4.6 <manifest:start-key-generation>
		case 'key-derivation': // 4.7 <manifest:key-derivation>
			throw new Error("Unsupported ODS Encryption");
		default: throw Rn;
	}
};
var parse_text_p = function(text, tag) {
	return text;
};
var parse_content_xml = (function() {

	var number_formats = {
		/* ods name: [short ssf fmt, long ssf fmt] */
		day: ["d", "dd"],
		month: ["m", "mm"],
		year: ["y", "yy"],
		hours: ["h", "hh"],
		minutes: ["m", "mm"],
		seconds: ["s", "ss"],
		"am-pm": ["A/P", "AM/PM"],
		"day-of-week": ["ddd", "dddd"]
	};

	return function pcx(d, opts) {
		var str = xlml_normalize(d);
		var state = [], tmp;
		var tag;
		var NFtag, NF, pidx;
		var sheetag;
		var Sheets = {}, SheetNames = [], ws = {};
		var Rn, q;
		var ctag;
		var textp, textpidx, textptag;
		var R, C, range = {s: {r:1000000,c:10000000}, e: {r:0, c:0}};
		var number_format_map = {};

		while((Rn = xlmlregex.exec(str))) switch(Rn[3]) {

			case 'table': // 9.1.2 <table:table>
				if(Rn[1]==='/') {
					if(range.e.c >= range.s.c && range.e.r >= range.s.r) ws['!ref'] = get_utils().encode_range(range);
					SheetNames.push(sheetag.name);
					Sheets[sheetag.name] = ws;
				}
				else if(Rn[0].charAt(Rn[0].length-2) !== '/') {
					sheetag = parsexmltag(Rn[0]);
					R = C = -1;
					range.s.r = range.s.c = 10000000; range.e.r = range.e.c = 0;
					ws = {};
				}
				break;

			case 'table-row':
				if(Rn[1] === '/') break;
				++R; C = -1; break; // 9.1.3 <table:table-row>
			case 'table-cell':
				if(Rn[0].charAt(Rn[0].length-2) === '/') { ++C; break; } /* stub */
				if(Rn[1]!=='/') {
					++C;
					if(C > range.e.c) range.e.c = C;
					if(R > range.e.r) range.e.r = R;
					if(C < range.s.c) range.s.c = C;
					if(R < range.s.r) range.s.r = R;
					ctag = parsexmltag(Rn[0]);
					q = {t:ctag['value-type'], v:null};
					/* 19.385 office:value-type */
					switch(q.t) {
						case 'boolean': q.t = 'b'; q.v = parsexmlbool(ctag['boolean-value']); break;
						case 'float': q.t = 'n'; q.v = parseFloat(ctag.value); break;
						case 'percentage': q.t = 'n'; q.v = parseFloat(ctag.value); break;
						case 'date': q.t = 'n'; q.v = datenum(ctag['date-value']); q.z = 'm/d/yy'; break;
						case 'time': q.t = 'n'; q.v = parse_isodur(ctag['time-value'])/86400; break;
						case 'string': q.t = 'str'; break;
						default: throw new Error('Unsupported value type ' + q.t);
					}
				} else {
					if(q.t === 'str') q.v = textp;
					if(textp) q.w = textp;
					ws[get_utils().encode_cell({r:R,c:C})] = q;
					q = null;
				}
				break; // 9.1.4 <table:table-cell>

			case 'document-content': // 3.1.3.2 <office:document-content>
			case 'spreadsheet': // 3.7 <office:spreadsheet>
			case 'scripts': // 3.12 <office:scripts>
			case 'font-face-decls': // 3.14 <office:font-face-decls>
				if(Rn[1]==='/'){if((tmp=state.pop())[0]!==Rn[3]) throw "Bad state: "+tmp;}
				else if(Rn[0].charAt(Rn[0].length-2) !== '/') state.push([Rn[3], true]);
				break;

			case 'number-style': // 16.27.2 <number:number-style>
			case 'percentage-style': // 16.27.9 <number:percentage-style>
			case 'date-style': // 16.27.10 <number:date-style>
			case 'time-style': // 16.27.18 <number:time-style>
				if(Rn[1]==='/'){
					number_format_map[NFtag.name] = NF;
					if((tmp=state.pop())[0]!==Rn[3]) throw "Bad state: "+tmp;
				} else if(Rn[0].charAt(Rn[0].length-2) !== '/') {
					NF = "";
					NFtag = parsexmltag(Rn[0]);
					state.push([Rn[3], true]);
				} break;

			case 'script': break; // 3.13 <office:script>
			case 'automatic-styles': break; // 3.15.3 <office:automatic-styles>

			case 'style': break; // 16.2 <style:style>
			case 'font-face': break; // 16.21 <style:font-face>

			case 'paragraph-properties': break; // 17.6 <style:paragraph-properties>
			case 'table-properties': break; // 17.15 <style:table-properties>
			case 'table-column-properties': break; // 17.16 <style:table-column-properties>
			case 'table-row-properties': break; // 17.17 <style:table-row-properties>
			case 'table-cell-properties': break; // 17.18 <style:table-cell-properties>

			case 'number': // 16.27.3 <number:number>
				switch(state[state.length-1][0]) {
					case 'time-style':
					case 'date-style':
						tag = parsexmltag(Rn[0]);
						NF += number_formats[Rn[3]][tag.style==='long'?1:0]; break;
				} break;

			case 'day': // 16.27.11 <number:day>
			case 'month': // 16.27.12 <number:month>
			case 'year': // 16.27.13 <number:year>
			case 'era': // 16.27.14 <number:era>
			case 'day-of-week': // 16.27.15 <number:day-of-week>
			case 'week-of-year': // 16.27.16 <number:week-of-year>
			case 'quarter': // 16.27.17 <number:quarter>
			case 'hours': // 16.27.19 <number:hours>
			case 'minutes': // 16.27.20 <number:minutes>
			case 'seconds': // 16.27.21 <number:seconds>
			case 'am-pm': // 16.27.22 <number:am-pm>
				switch(state[state.length-1][0]) {
					case 'time-style':
					case 'date-style':
						tag = parsexmltag(Rn[0]);
						NF += number_formats[Rn[3]][tag.style==='long'?1:0]; break;
				} break;

			case 'boolean-style': break; // 16.27.23 <number:boolean-style>
			case 'boolean': break; // 16.27.24 <number:boolean>
			case 'text-style': break; // 16.27.25 <number:text-style>
			case 'text': // 16.27.26 <number:text>
				if(Rn[0].substr(-2) === "/>") break;
				else if(Rn[1]==="/") switch(state[state.length-1][0]) {
					case 'number-style':
					case 'date-style':
					case 'time-style':
						NF += str.slice(pidx, Rn.index);
						break;
				}
				else pidx = Rn.index + Rn[0].length;
				break;
			case 'text-content': break; // 16.27.27 <number:text-content>
			case 'text-properties': break; // 16.27.27 <style:text-properties>

			case 'body': break; // 3.3 16.9.6 19.726.3

			case 'forms': break; // 12.25.2 13.2
			case 'table-column': break; // 9.1.6 <table:table-column>

			case 'graphic-properties': break;
			case 'calculation-settings': break; // 9.4.1 <table:calculation-settings>
			case 'named-expressions': break; // 9.4.11 <table:named-expressions>
			case 'named-range': break; // 9.4.11 <table:named-range>
			case 'span': break; // <text:span>
			case 'p':
				if(Rn[1]==='/') textp = parse_text_p(str.slice(textpidx,Rn.index), textptag);
				else { textptag = parsexmltag(Rn[0]); textpidx = Rn.index + Rn[0].length; }
				break; // <text:p>
			case 's': break; // <text:s>
			case 'date': break; // <*:date>
			case 'annotation': break;
			default: throw Rn;
		}
		var out = {
			Sheets: Sheets,
			SheetNames: SheetNames
		};
		return out;
	};
})();
/* Part 3: Packages */
var parse_ods = function(zip, opts) {
	//var manifest = parse_manifest(getzipdata(zip, 'META-INF/manifest.xml'));
	return parse_content_xml(getzipdata(zip, 'content.xml'));
};
ODS.parse_ods = parse_ods;
})(typeof exports !== 'undefined' ? exports : ODS);