sheetjs-clone/bits/67_wsxml.js
SheetJS 6bc24374b9 version bump 0.7.7: needs more cowbell
- parsexmltag and other hot functions now better optimized for v8
- monomorphic functions (different types -> different funcs)
- more efficient decode_range implementation when source is trusted
- regular expressions cached and simplified without breaking correctness
- more efficient utf8 techniques when available
- XLSX: large functions broken down into sub-functions (e.g. `parse_ws_xml`)
- XLSB: avoid unnecessary binds
- XLSB: assume no exotic codepage exists (no one else tries to write XLSB)
- demo exposes rABS / worker / transferable options
- more tests
- jszip updated to 2.3.0
- SSF updated to 0.8.1
- codepage updated to 1.3.1
2014-06-29 14:29:45 -04:00

268 lines
8.5 KiB
JavaScript

function parse_ws_xml_dim(ws, s) {
var d = safe_decode_range(s);
if(d.s.r<=d.e.r && d.s.c<=d.e.c && d.s.r>=0 && d.e.r>=0) ws["!ref"] = encode_range(d);
}
var mergecregex = /<mergeCell ref="[A-Z0-9:]+"\s*\/>/g;
var sheetdataregex = /<(?:\w+:)?sheetData>([^\u2603]*)<\/(?:\w+:)?sheetData>/;
var hlinkregex = /<hyperlink[^>]*\/>/g;
/* 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 ridx = data.indexOf("<dimension");
if(ridx > 0) {
var ref = data.substr(ridx,50).match(/"(\w*:\w*)"/);
if(ref != null) parse_ws_xml_dim(s, ref[1]);
}
/* 18.3.1.55 mergeCells CT_MergeCells */
var mergecells = [];
if(data.indexOf("</mergeCells>")!==-1) {
var merges = data.match(mergecregex);
for(ridx = 0; ridx != merges.length; ++ridx)
mergecells[ridx] = safe_decode_range(merges[ridx].substr(merges[ridx].indexOf("\"")+1));
}
/* 18.3.1.17 cols CT_Cols */
var columns = [];
if(opts.cellStyles && data.indexOf("</cols>")!==-1) {
/* 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} };
/* 18.3.1.80 sheetData CT_SheetData ? */
var mtch=data.match(sheetdataregex);
if(mtch) parse_ws_xml_data(mtch[1], s, opts, refguess);
/* 18.3.1.48 hyperlinks CT_Hyperlinks */
if(data.indexOf("</hyperlinks>")!==-1) parse_ws_xml_hlinks(s, data.match(hlinkregex), rels);
if(!s["!ref"] && refguess.e.c >= refguess.s.c && refguess.e.r >= refguess.s.r) s["!ref"] = encode_range(refguess);
if(opts.sheetRows > 0 && s["!ref"]) {
var tmpref = safe_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;
}
function parse_ws_xml_hlinks(s, data, rels) {
for(var i = 0; i != data.length; ++i) {
var val = parsexmltag(data[i], 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 = safe_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;
}
}
}
function parse_ws_xml_cols(columns, cols) {
var seencol = false;
for(var coli = 0; coli != cols.length; ++coli) {
var coll = parsexmltag(cols[coli], true);
var colm=parseInt(coll.min, 10)-1, colM=parseInt(coll.max,10)-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;
}
}
function write_ws_xml_cols(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[o.length] = (writextag('col', null, p));
}
o[o.length] = "</cols>";
return o.join("");
}
function write_ws_xml_cell(cell, ref, ws, opts, idx, wb) {
if(cell.v === undefined) return "";
var vv = "";
switch(cell.t) {
case 'b': vv = cell.v ? "1" : "0"; break;
case 'n': case 'e': vv = ''+cell.v; break;
default: vv = cell.v; break;
}
var v = writetag('v', escapexml(vv)), o = {r:ref};
/* TODO: cell style */
var os = get_cell_style(opts.cellXfs, cell, opts);
if(os !== 0) o.s = os;
switch(cell.t) {
case 's': case 'str':
if(opts.bookSST) {
v = writetag('v', ''+get_sst_id(opts.Strings, cell.v));
o.t = "s"; break;
}
o.t = "str"; break;
case 'n': break;
case 'b': o.t = "b"; break;
case 'e': o.t = "e"; break;
}
return writextag('c', v, o);
}
var parse_ws_xml_data = (function parse_ws_xml_data_factory() {
var cellregex = /<(?:\w+:)?c /, rowregex = /<\/(?:\w+:)?row>/;
var rregex = /r=["']([^"']*)["']/, isregex = /<is>([\S\s]*?)<\/is>/;
var match_v = matchtag("v"), match_f = matchtag("f");
return function parse_ws_xml_data(sdata, s, opts, guess) {
var ri = 0, x = "", cells = [], cref = [], idx = 0, i=0, cc=0, d="", p;
var tag;
var sstr;
var fmtid = 0, fillid = 0, do_format = Array.isArray(styles.CellXf), cf;
for(var marr = sdata.split(rowregex), mt = 0; mt != marr.length; ++mt) {
x = marr[mt].trim();
if(x.length === 0) continue;
/* 18.3.1.73 row CT_Row */
for(ri = 0; ri != x.length; ++ri) if(x.charCodeAt(ri) === 62) break; ++ri;
tag = parsexmltag(x.substr(0,ri), true);
if(opts.sheetRows && opts.sheetRows < +tag.r) continue;
if(guess.s.r > tag.r - 1) guess.s.r = tag.r - 1;
if(guess.e.r < tag.r - 1) guess.e.r = tag.r - 1;
/* 18.3.1.4 c CT_Cell */
cells = x.substr(ri).split(cellregex);
for(ri = 0; ri != cells.length; ++ri) {
x = cells[ri].trim();
if(x.length === 0) continue;
cref = x.match(rregex); idx = ri; i=0; cc=0;
x = "<c " + x;
if(cref !== null && cref.length === 2) {
idx = 0; d=cref[1];
for(i=0; i != d.length; ++i) {
if((cc=d.charCodeAt(i)-64) < 1 || cc > 26) break;
idx = 26*idx + cc;
}
--idx;
}
for(i = 0; i != x.length; ++i) if(x.charCodeAt(i) === 62) break; ++i;
tag = parsexmltag(x.substr(0,i), true);
d = x.substr(i);
p = {t:""};
if((cref=d.match(match_v))!== null) p.v=unescapexml(cref[1]);
if(opts.cellFormula && (cref=d.match(match_f))!== null) p.f=unescapexml(cref[1]);
/* SCHEMA IS ACTUALLY INCORRECT HERE. IF A CELL HAS NO T, EMIT "" */
if(tag.t === undefined && p.v === undefined) {
if(!opts.sheetStubs) continue;
p.t = "str";
}
else p.t = tag.t || "n";
if(guess.s.c > idx) guess.s.c = idx;
if(guess.e.c < idx) guess.e.c = idx;
/* 18.18.11 t ST_CellType */
switch(p.t) {
case 'n': p.v = parseFloat(p.v); break;
case 's':
sstr = strs[parseInt(p.v, 10)];
p.v = sstr.t;
p.r = sstr.r;
if(opts.cellHTML) p.h = sstr.h;
break;
case 'str': if(p.v != null) p.v = utf8read(p.v); else p.v = ""; break;
case 'inlineStr':
cref = d.match(isregex);
p.t = 'str';
if(cref !== null) { sstr = parse_si(cref[1]); p.v = sstr.t; } else p.v = "";
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 */
fmtid = fillid = 0;
if(do_format && tag.s !== undefined) {
cf = styles.CellXf[tag.s];
if(cf != null) {
if(cf.numFmtId != null) fmtid = cf.numFmtId;
if(opts.cellStyles && cf.fillId != undefined) fillid = cf.fillId;
}
}
safe_format(p, fmtid, fillid, opts);
s[tag.r] = p;
}
}
}; })();
function write_ws_xml_data(ws, opts, idx, wb) {
var o = [], r = [], range = safe_decode_range(ws['!ref']), cell, ref, rr = "", cols = [];
for(var R = range.s.r; R <= range.e.r; ++R) {
r = [];
rr = encode_row(R);
for(var C = range.s.c; C <= range.e.c; ++C) {
if(R === range.s.r) cols[C] = encode_col(C);
ref = cols[C] + rr;
if(!ws[ref]) continue;
if((cell = write_ws_xml_cell(ws[ref], ref, ws, opts, idx, wb))) r.push(cell);
}
if(r.length) o[o.length] = (writextag('row', r.join(""), {r:rr}));
}
return o.join("");
}
var WS_XML_ROOT = writextag('worksheet', null, {
'xmlns': XMLNS.main[0],
'xmlns:r': XMLNS.r
});
function write_ws_xml(idx, opts, wb) {
var o = [XML_HEADER, WS_XML_ROOT];
var s = wb.SheetNames[idx], ws = wb.Sheets[s] || {}, sidx = 0, rdata = "";
o[o.length] = (writextag('dimension', null, {'ref': ws['!ref'] || 'A1'}));
if((ws['!cols']||[]).length > 0) o[o.length] = (write_ws_xml_cols(ws, ws['!cols']));
sidx = o.length;
o[o.length] = (writextag('sheetData', null));
if(ws['!ref']) rdata = write_ws_xml_data(ws, opts, idx, wb);
if(rdata.length) o[o.length] = (rdata);
if(o.length>sidx+1) { o[o.length] = ('</sheetData>'); o[sidx]=o[sidx].replace("/>",">"); }
if(o.length>2) { o[o.length] = ('</worksheet>'); o[1]=o[1].replace("/>",">"); }
return o.join("");
}