sheetjs/bits/67_wsxml.js
SheetJS 44b55c5c56 version bump 0.7.6: IE compatibility
- jscs linting to check for trailing comma issues (h/t @altkatz)
- IE: phased out lazy string indexing in favor of charCodeAt
- XLSX: replaced certain operations in hot functions with faster alternatives
- updated SSF to 0.7.1
- improved coverage in tests
2014-06-05 03:06:20 -04:00

240 lines
7.7 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 = {}, mtch;
/* 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]);
});
}
/* 18.3.1.17 cols CT_Cols */
var columns = [];
if(opts.cellStyles && data.match(/<\/cols>/)) {
/* 18.3.1.13 col CT_Col */
var cols = data.match(/<col[^>]*\/>/g);
parse_ws_xml_cols(columns, cols);
}
var refguess = {s: {r:1000000, c:1000000}, e: {r:0, c:0} };
var sidx = 0;
var match_v = matchtag("v"), match_f = matchtag("f");
/* 18.3.1.80 sheetData CT_SheetData ? */
mtch=data.match(/<(?:\w+:)?sheetData>([^\u2603]*)<\/(?:\w+:)?sheetData>/m);
if(mtch) for(var marr = mtch[1].split(/<\/(?:\w+:)?row>/), mt = 0; mt != marr.length; ++mt) {
x = marr[mt];
if(x.length === 0 || x.trim().length === 0) continue;
/* 18.3.1.73 row CT_Row */
for(var ri = 0; ri != x.length; ++ri) if(x.charCodeAt(ri) === 62) break; ++ri;
var row = parsexmltag(x.substr(0,ri));
if(opts.sheetRows && opts.sheetRows < +row.r) continue;
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(ri).split(/<(?:\w+:)?c /);
for(var ix = 0, c=cells[0]; ix != cells.length; ++ix) {
c = cells[ix];
if(c.length === 0 || c.trim().length === 0) continue;
var cref = c.match(/r=["']([^"']*)["']/), idx = ix, i=0, cc=0, a1="";
c = "<c " + c;
if(cref && cref.length == 2) {
idx = 0; a1=cref[1];
for(i=0; i != a1.length; ++i) {
if((cc=a1.charCodeAt(i)-64) < 1 || cc > 26) break;
idx = 26*idx + cc;
}
--idx;
}
for(var ci = 0; ci != c.length; ++ci) if(c.charCodeAt(ci) === 62) break; ++ci;
var cell = parsexmltag(c.substr(0,ci), true);
var d = c.substr(ci);
var p = {};
var x=d.match(match_v);if(x)p.v=unescapexml(x[1]);
if(opts.cellFormula) {x=d.match(match_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) continue;
p.t = "str"; p.v = undefined;
}
else p.t = cell.t || "n";
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': p.v = parsexmlbool(p.v); break;
case 'd':
p.v = datenum(p.v);
p.t = 'n';
break;
/* in case of error, stick value in .raw */
case 'e': p.raw = RBErr[p.v]; break;
}
/* formatting */
var fmtid = 0, fillid = 0;
if(cell.s && styles.CellXf) {
var cf = styles.CellXf[cell.s];
if(cf && cf.numFmtId) fmtid = cf.numFmtId;
if(opts.cellStyles && cf && cf.fillId) fillid = cf.fillId;
}
safe_format(p, fmtid, fillid, opts);
s[cell.r] = p;
}
}
/* 18.3.1.48 hyperlinks CT_Hyperlinks */
if(data.match(/<\/hyperlinks>/)) parse_ws_xml_hlinks(s, data.match(/<hyperlink[^>]*\/>/g), rels);
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;
if(columns.length > 0) s["!cols"] = columns;
return s;
}
var parse_ws_xml_hlinks = function(s, data, rels) {
data.forEach(function(h) {
var val = parsexmltag(h, true);
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;
}
});
};
var parse_ws_xml_cols = function(columns, cols) {
var seencol = false;
for(var coli = 0; coli != cols.length; ++coli) {
var coll = parsexmltag(cols[coli], true);
var colm=Number(coll.min)-1, colM=Number(coll.max)-1;
delete coll.min; delete coll.max;
if(!seencol && coll.width) { seencol = true; find_mdw(+coll.width, coll); }
if(coll.width) {
coll.wpx = width2px(+coll.width);
coll.wch = px2char(coll.wpx);
coll.MDW = MDW;
}
while(colm <= colM) columns[colm++] = coll;
}
};
var write_ws_xml_cols = function(ws, cols) {
var o = ["<cols>"], col, width;
for(var i = 0; i != cols.length; ++i) {
if(!(col = cols[i])) continue;
var p = {min:i+1,max:i+1};
/* wch (chars), wpx (pixels) */
width = -1;
if(col.wpx) width = px2char(col.wpx);
else if(col.wch) width = col.wch;
if(width > -1) { p.width = char2width(width); p.customWidth= 1; }
o.push(writextag('col', null, p));
}
o.push("</cols>");
return o.join("");
};
var write_ws_xml_cell = function(cell, ref, ws, opts, idx, wb) {
var vv = cell.v; if(cell.t == 'b') vv = cell.v ? "1" : "0";
var v = writextag('v', escapexml(String(vv))), o = {r:ref};
o.s = get_cell_style(opts.cellXfs, cell, opts);
if(o.s === 0 || o.s === "0") delete o.s;
/* 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);
}
o.t = "str"; return writextag('c', v, o);
case 'n': delete o.t; 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 WS_XML_ROOT = writextag('worksheet', null, {
'xmlns': XMLNS.main[0],
'xmlns:r': XMLNS.r
});
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'}));
if((ws['!cols']||[]).length > 0) o.push(write_ws_xml_cols(ws, ws['!cols']));
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("");
};