sheetjs/bits/72_wsxml.js
SheetJS d15b81e0e9 version bump 0.7.0: Basic write support
- very basic XLSX / XLSM write support with roundtrip tests (XLSB stubs)
- reorganized source tree
- new XLSB range check ensures that A1 is not emitted for empty sheets
- SSF table emitted in output (consistent with js-xls)
- CLI supports writing

Backwards-incompatible changes:
o new Property aliases (see CORE_PROPS and EXT_PROPS)
o FILETIME custom properties parsed as JS Dates
o `xlsx2csv` -> `xlsx` (and `bin/xlsx{2csv,}.njs`)
2014-05-15 17:33:34 -07:00

178 lines
6.1 KiB
JavaScript

/* 18.3 Worksheets */
function parse_ws_xml(data, opts, rels) {
if(!data) return data;
/* 18.3.1.99 worksheet CT_Worksheet */
var s = {};
/* 18.3.1.35 dimension CT_SheetDimension ? */
var ref = data.match(/<dimension ref="([^"]*)"\s*\/>/);
if(ref && ref.length == 2 && ref[1].indexOf(":") !== -1) s["!ref"] = ref[1];
/* 18.3.1.55 mergeCells CT_MergeCells */
var mergecells = [];
if(data.match(/<\/mergeCells>/)) {
var merges = data.match(/<mergeCell ref="([A-Z0-9:]+)"\s*\/>/g);
mergecells = merges.map(function(range) {
return decode_range(/<mergeCell ref="([A-Z0-9:]+)"\s*\/>/.exec(range)[1]);
});
}
var refguess = {s: {r:1000000, c:1000000}, e: {r:0, c:0} };
var q = ["v","f"];
var sidx = 0;
/* 18.3.1.80 sheetData CT_SheetData ? */
if(!data.match(/<(\w+:)?sheetData *\/>/))
data.match(/<(?:\w+:)?sheetData>([^\u2603]*)<\/(?:\w+:)?sheetData>/m)[1].split(/<\/(?:\w+:)?row>/).forEach(function(x) {
if(x === "" || x.trim() === "") return;
/* 18.3.1.73 row CT_Row */
var row = parsexmltag(x.match(/<(?:\w+:)?row[^>]*>/)[0]);
if(opts.sheetRows && opts.sheetRows < +row.r) return;
if(refguess.s.r > row.r - 1) refguess.s.r = row.r - 1;
if(refguess.e.r < row.r - 1) refguess.e.r = row.r - 1;
/* 18.3.1.4 c CT_Cell */
var cells = x.substr(x.indexOf('>')+1).split(/<(?:\w+:)?c /);
cells.forEach(function(c, idx) { if(c === "" || c.trim() === "") return;
var cref = c.match(/r=["']([^"']*)["']/);
c = "<c " + c;
if(cref && cref.length == 2) idx = decode_cell(cref[1]).c;
var cell = parsexmltag((c.match(/<c[^>]*>/)||[c])[0]); delete cell[0];
var d = c.substr(c.indexOf('>')+1);
var p = {};
q.forEach(function(f){var x=d.match(matchtag(f));if(x)p[f]=unescapexml(x[1]);});
/* SCHEMA IS ACTUALLY INCORRECT HERE. IF A CELL HAS NO T, EMIT "" */
if(cell.t === undefined && p.v === undefined) {
if(!opts.sheetStubs) return;
p.t = "str"; p.v = undefined;
}
else p.t = (cell.t ? cell.t : "n"); // default is "n" in schema
if(refguess.s.c > idx) refguess.s.c = idx;
if(refguess.e.c < idx) refguess.e.c = idx;
/* 18.18.11 t ST_CellType */
switch(p.t) {
case 'n': p.v = parseFloat(p.v); break;
case 's': {
sidx = parseInt(p.v, 10);
p.v = strs[sidx].t;
p.r = strs[sidx].r;
if(opts.cellHTML) p.h = strs[sidx].h;
} break;
case 'str': if(p.v) p.v = utf8read(p.v); break;
case 'inlineStr':
var is = d.match(/<is>(.*)<\/is>/);
is = is ? parse_si(is[1]) : {t:"",r:""};
p.t = 'str'; p.v = is.t;
break; // inline string
case 'b': if(typeof p.v !== 'boolean') p.v = parsexmlbool(p.v); break;
case 'd': /* TODO: date1904 logic */
var epoch = Date.parse(p.v);
p.v = (epoch - new Date(Date.UTC(1899, 11, 30))) / (24 * 60 * 60 * 1000);
p.t = 'n';
break;
/* in case of error, stick value in .raw */
case 'e': p.raw = RBErr[p.v]; break;
}
/* formatting */
var fmtid = 0;
if(cell.s && styles.CellXf) {
var cf = styles.CellXf[cell.s];
if(cf && cf.numFmtId) fmtid = cf.numFmtId;
}
try {
p.w = SSF.format(fmtid,p.v,_ssfopts);
if(opts.cellNF) p.z = SSF._table[fmtid];
} catch(e) { if(opts.WTF) throw e; }
s[cell.r] = p;
});
});
/* 18.3.1.48 hyperlinks CT_Hyperlinks */
if(data.match(/<\/hyperlinks>/)) data.match(/<hyperlink[^>]*\/>/g).forEach(function(h) {
var val = parsexmltag(h); delete val[0];
if(!val.ref) return;
var rel = rels['!id'][val.id];
if(rel) {
val.Target = rel.Target;
if(val.location) val.Target += "#"+val.location;
val.Rel = rel;
}
var rng = decode_range(val.ref);
for(var R=rng.s.r;R<=rng.e.r;++R) for(var C=rng.s.c;C<=rng.e.c;++C) {
var addr = encode_cell({c:C,r:R});
if(!s[addr]) s[addr] = {t:"str",v:undefined};
s[addr].l = val;
}
});
if(!s["!ref"] && refguess.e.c >= refguess.s.c && refguess.e.r >= refguess.s.r) s["!ref"] = encode_range(refguess);
if(opts.sheetRows && s["!ref"]) {
var tmpref = decode_range(s["!ref"]);
if(opts.sheetRows < +tmpref.e.r) {
tmpref.e.r = opts.sheetRows - 1;
if(tmpref.e.r > refguess.e.r) tmpref.e.r = refguess.e.r;
if(tmpref.e.r < tmpref.s.r) tmpref.s.r = tmpref.e.r;
if(tmpref.e.c > refguess.e.c) tmpref.e.c = refguess.e.c;
if(tmpref.e.c < tmpref.s.c) tmpref.s.c = tmpref.e.c;
s["!fullref"] = s["!ref"];
s["!ref"] = encode_range(tmpref);
}
}
if(mergecells.length > 0) s["!merges"] = mergecells;
return s;
}
var WS_XML_ROOT = writextag('worksheet', null, {
'xmlns': XMLNS.main[0],
'xmlns:r': XMLNS.r
});
var write_ws_xml_cell = function(cell, ref, ws, opts, idx, wb) {
var v = writextag('v', escapexml(String(cell.v))), o = {r:ref};
if(cell.z) o.s = get_cell_style(opts.cellXfs, cell, opts);
/* TODO: cell style */
if(typeof cell.v === 'undefined') return "";
switch(cell.t) {
case 's': case 'str': {
if(opts.bookSST) {
v = writextag('v', String(get_sst_id(opts.Strings, cell.v)));
o.t = "s"; return writextag('c', v, o);
} else { o.t = "str"; return writextag('c', v, o); }
} break;
case 'n': o.t = "n"; return writextag('c', v, o);
case 'b': o.t = "b"; return writextag('c', v, o);
case 'e': o.t = "e"; return writextag('c', v, o);
}
};
var write_ws_xml_data = function(ws, opts, idx, wb) {
var o = [], r = [], range = utils.decode_range(ws['!ref']), cell, ref;
for(var R = range.s.r; R <= range.e.r; ++R) {
r = [];
for(var C = range.s.c; C <= range.e.c; ++C) {
ref = utils.encode_cell({c:C, r:R});
if(!ws[ref]) continue;
if((cell = write_ws_xml_cell(ws[ref], ref, ws, opts, idx, wb))) r.push(cell);
}
if(r.length) o.push(writextag('row', r.join(""), {r:encode_row(R)}));
}
return o.join("");
};
var write_ws_xml = function(idx, opts, wb) {
var o = [], s = wb.SheetNames[idx], ws = wb.Sheets[s] || {}, sidx = 0, rdata = "";
o.push(XML_HEADER);
o.push(WS_XML_ROOT);
o.push(writextag('dimension', null, {'ref': ws['!ref'] || 'A1'}));
sidx = o.length;
o.push(writextag('sheetData', null));
if(ws['!ref']) rdata = write_ws_xml_data(ws, opts, idx, wb);
if(rdata.length) o.push(rdata);
if(o.length>sidx+1){ o.push('</sheetData>'); o[sidx]=o[sidx].replace("/>",">"); }
if(o.length>2){ o.push('</worksheet>'); o[1]=o[1].replace("/>",">"); }
return o.join("");
};