sheetjs/bits/42_sstxml.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

205 lines
5.5 KiB
JavaScript

/* 18.4.1 charset to codepage mapping */
var CS2CP = {
0: 1252, /* ANSI */
1: 65001, /* DEFAULT */
2: 65001, /* SYMBOL */
77: 10000, /* MAC */
128: 932, /* SHIFTJIS */
129: 949, /* HANGUL */
130: 1361, /* JOHAB */
134: 936, /* GB2312 */
136: 950, /* CHINESEBIG5 */
161: 1253, /* GREEK */
162: 1254, /* TURKISH */
163: 1258, /* VIETNAMESE */
177: 1255, /* HEBREW */
178: 1256, /* ARABIC */
186: 1257, /* BALTIC */
204: 1251, /* RUSSIAN */
222: 874, /* THAI */
238: 1250, /* EASTEUROPE */
255: 1252, /* OEM */
69: 6969 /* MISC */
};
/* Parse a list of <r> tags */
var parse_rs = (function parse_rs_factory() {
var tregex = matchtag("t"), rpregex = matchtag("rPr"), rregex = /<r>/g, rend = /<\/r>/, nlregex = /\r\n/g;
/* 18.4.7 rPr CT_RPrElt */
var parse_rpr = function parse_rpr(rpr, intro, outro) {
var font = {}, cp = 65001;
var m = rpr.match(tagregex), i = 0;
if(m) for(;i!=m.length; ++i) {
var y = parsexmltag(m[i]);
switch(y[0]) {
/* 18.8.12 condense CT_BooleanProperty */
/* ** not required . */
case '<condense': break;
/* 18.8.17 extend CT_BooleanProperty */
/* ** not required . */
case '<extend': break;
/* 18.8.36 shadow CT_BooleanProperty */
/* ** not required . */
case '<shadow':
/* falls through */
case '<shadow/>': break;
/* 18.4.1 charset CT_IntProperty TODO */
case '<charset':
if(y.val == '1') break;
cp = CS2CP[parseInt(y.val, 10)];
break;
/* 18.4.2 outline CT_BooleanProperty TODO */
case '<outline':
/* falls through */
case '<outline/>': break;
/* 18.4.5 rFont CT_FontName */
case '<rFont': font.name = y.val; break;
/* 18.4.11 sz CT_FontSize */
case '<sz': font.sz = y.val; break;
/* 18.4.10 strike CT_BooleanProperty */
case '<strike':
if(!y.val) break;
/* falls through */
case '<strike/>': font.strike = 1; break;
case '</strike>': break;
/* 18.4.13 u CT_UnderlineProperty */
case '<u':
if(!y.val) break;
/* falls through */
case '<u/>': font.u = 1; break;
case '</u>': break;
/* 18.8.2 b */
case '<b':
if(!y.val) break;
/* falls through */
case '<b/>': font.b = 1; break;
case '</b>': break;
/* 18.8.26 i */
case '<i':
if(!y.val) break;
/* falls through */
case '<i/>': font.i = 1; break;
case '</i>': break;
/* 18.3.1.15 color CT_Color TODO: tint, theme, auto, indexed */
case '<color':
if(y.rgb) font.color = y.rgb.substr(2,6);
break;
/* 18.8.18 family ST_FontFamily */
case '<family': font.family = y.val; break;
/* 18.4.14 vertAlign CT_VerticalAlignFontProperty TODO */
case '<vertAlign': break;
/* 18.8.35 scheme CT_FontScheme TODO */
case '<scheme': break;
default:
if(y[0].charCodeAt(1) !== 47) throw 'Unrecognized rich format ' + y[0];
}
}
/* TODO: These should be generated styles, not inline */
var style = [];
if(font.b) style.push("font-weight: bold;");
if(font.i) style.push("font-style: italic;");
intro.push('<span style="' + style.join("") + '">');
outro.push("</span>");
return cp;
};
/* 18.4.4 r CT_RElt */
function parse_r(r) {
var terms = [[],"",[]];
/* 18.4.12 t ST_Xstring */
var t = r.match(tregex), cp = 65001;
if(!isval(t)) return "";
terms[1] = t[1];
var rpr = r.match(rpregex);
if(isval(rpr)) cp = parse_rpr(rpr[1], terms[0], terms[2]);
return terms[0].join("") + terms[1].replace(nlregex,'<br/>') + terms[2].join("");
}
return function parse_rs(rs) {
return rs.replace(rregex,"").split(rend).map(parse_r).join("");
};
})();
/* 18.4.8 si CT_Rst */
var sitregex = /<t[^>]*>([^<]*)<\/t>/g, sirregex = /<r>/;
function parse_si(x, opts) {
var html = opts ? opts.cellHTML : true;
var z = {};
if(!x) return null;
var y;
/* 18.4.12 t ST_Xstring (Plaintext String) */
if(x.charCodeAt(1) === 116) {
z.t = utf8read(unescapexml(x.substr(x.indexOf(">")+1).split(/<\/t>/)[0]));
z.r = x;
if(html) z.h = z.t;
}
/* 18.4.4 r CT_RElt (Rich Text Run) */
else if((y = x.match(sirregex))) {
z.r = x;
z.t = utf8read(unescapexml(x.match(sitregex).join("").replace(tagregex,"")));
if(html) z.h = parse_rs(x);
}
/* 18.4.3 phoneticPr CT_PhoneticPr (TODO: needed for Asian support) */
/* 18.4.6 rPh CT_PhoneticRun (TODO: needed for Asian support) */
return z;
}
/* 18.4 Shared String Table */
var sstr0 = /<sst([^>]*)>([\s\S]*)<\/sst>/;
var sstr1 = /<(?:si|sstItem)>/g;
var sstr2 = /<\/(?:si|sstItem)>/;
function parse_sst_xml(data, opts) {
var s = [], ss;
/* 18.4.9 sst CT_Sst */
var sst = data.match(sstr0);
if(isval(sst)) {
ss = sst[2].replace(sstr1,"").split(sstr2);
for(var i = 0; i != ss.length; ++i) {
var o = parse_si(ss[i], opts);
if(o != null) s[s.length] = o;
}
sst = parsexmltag(sst[1]); s.Count = sst.count; s.Unique = sst.uniqueCount;
}
return s;
}
RELS.SST = "http://schemas.openxmlformats.org/officeDocument/2006/relationships/sharedStrings";
function write_sst_xml(sst, opts) {
if(!opts.bookSST) return "";
var o = [XML_HEADER];
o[o.length] = (writextag('sst', null, {
xmlns: XMLNS.main[0],
count: sst.Count,
uniqueCount: sst.Unique
}));
for(var i = 0; i != sst.length; ++i) { if(sst[i] == null) continue;
var s = sst[i];
var sitag = "<si>";
if(s.r) sitag += s.r;
else {
sitag += "<t";
if(s.t.match(/^\s|\s$|[\t\n\r]/)) sitag += ' xml:space="preserve"';
sitag += ">" + escapexml(s.t) + "</t>";
}
sitag += "</si>";
o[o.length] = (sitag);
}
if(o.length>2){ o[o.length] = ('</sst>'); o[1]=o[1].replace("/>",">"); }
return o.join("");
}