sheetjs/bits/85_parsezip.js

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function parseZip(zip, opts) {
opts = opts || {};
fixopts(opts);
reset_cp();
var entries = Object.keys(zip.files);
var keys = entries.filter(function(x){return x.substr(-1) != '/';}).sort();
var dir = parseCT(getdata(getzipfile(zip, '[Content_Types].xml')));
var xlsb = false;
if(dir.workbooks.length === 0) {
var binname = "xl/workbook.bin";
if(!getzipfile(zip,binname)) throw new Error("Could not find workbook entry");
dir.workbooks.push(binname);
xlsb = true;
}
if(!opts.bookSheets && !opts.bookProps) {
strs = {};
if(dir.sst) strs=parse_sst(getdata(getzipfile(zip, dir.sst.replace(/^\//,''))), dir.sst, opts);
styles = {};
if(dir.style) styles = parse_sty(getdata(getzipfile(zip, dir.style.replace(/^\//,''))),dir.style);
}
var wb = parse_wb(getdata(getzipfile(zip, dir.workbooks[0].replace(/^\//,''))), dir.workbooks[0], opts);
var props = {}, propdata = "";
try {
propdata = dir.coreprops.length !== 0 ? getdata(getzipfile(zip, dir.coreprops[0].replace(/^\//,''))) : "";
propdata += dir.extprops.length !== 0 ? getdata(getzipfile(zip, dir.extprops[0].replace(/^\//,''))) : "";
props = propdata !== "" ? parseProps(propdata) : {};
} catch(e) { }
var custprops = {};
if(!opts.bookSheets || opts.bookProps) {
if (dir.custprops.length !== 0) try {
propdata = getdata(getzipfile(zip, dir.custprops[0].replace(/^\//,'')));
custprops = parseCustomProps(propdata);
} catch(e) {/*console.error(e);*/}
}
var out = {};
if(opts.bookSheets || opts.bookProps) {
var sheets;
if(props.Worksheets && props.SheetNames.length > 0) sheets=props.SheetNames;
else if(wb.Sheets) sheets = wb.Sheets.map(function(x){ return x.name; });
if(opts.bookProps) { out.Props = props; out.Custprops = custprops; }
if(typeof sheets !== 'undefined') out.SheetNames = sheets;
if(opts.bookSheets ? out.SheetNames : opts.bookProps) return out;
}
var deps = {};
if(dir.calcchain) deps=parseDeps(getdata(getzipfile(zip, dir.calcchain.replace(/^\//,''))));
var sheets = {}, i=0;
var sheetRels = {};
var path, relsPath;
if(!props.Worksheets) {
/* Google Docs doesn't generate the appropriate metadata, so we impute: */
var wbsheets = wb.Sheets;
props.Worksheets = wbsheets.length;
props.SheetNames = [];
for(var j = 0; j != wbsheets.length; ++j) {
props.SheetNames[j] = wbsheets[j].name;
}
for(i = 0; i != props.Worksheets; ++i) {
try { /* TODO: remove these guards */
path = 'xl/worksheets/sheet' + (i+1) + (xlsb?'.bin':'.xml');
relsPath = path.replace(/^(.*)(\/)([^\/]*)$/, "$1/_rels/$3.rels");
sheets[props.SheetNames[i]]=parse_ws(getdata(getzipfile(zip, path)),path,opts);
sheetRels[props.SheetNames[i]]=parseRels(getdata(getzipfile(zip, relsPath)), path);
} catch(e) {}
}
} else {
for(i = 0; i != props.Worksheets; ++i) {
try {
//var path = dir.sheets[i].replace(/^\//,'');
path = 'xl/worksheets/sheet' + (i+1) + (xlsb?'.bin':'.xml');
relsPath = path.replace(/^(.*)(\/)([^\/]*)$/, "$1/_rels/$3.rels");
sheets[props.SheetNames[i]]=parse_ws(getdata(getzipfile(zip, path)),path,opts);
sheetRels[props.SheetNames[i]]=parseRels(getdata(getzipfile(zip, relsPath)), path);
} catch(e) {/*console.error(e);*/}
}
}
if(dir.comments) parse_comments(zip, dir.comments, sheets, sheetRels, opts);
return {
Directory: dir,
Workbook: wb,
Props: props,
Custprops: custprops,
Deps: deps,
Sheets: sheets,
SheetNames: props.SheetNames,
Strings: strs,
Styles: styles,
keys: keys,
files: zip.files
};
}