sheetjs-clone/bits/39_xlsbiff.js
SheetJS 547fba56a2 version bump 0.11.10: binary miscellany
- XLSX empty numeric cells stubbed (fixes #891 h/t @mgoku)
- XLS sheet type identification
- XLS/XLSB/XLSM CodeName exposure (fixes #361 h/t @TennisVisuals)
- CFB re-exported
2017-11-19 20:51:14 -05:00

967 lines
26 KiB
JavaScript

/* --- MS-XLS --- */
/* 2.5.19 */
function parse_XLSCell(blob, length)/*:Cell*/ {
var rw = blob.read_shift(2); // 0-indexed
var col = blob.read_shift(2);
var ixfe = blob.read_shift(2);
return ({r:rw, c:col, ixfe:ixfe}/*:any*/);
}
function write_XLSCell(R/*:number*/, C/*:number*/, ixfe/*:?number*/, o) {
if(!o) o = new_buf(6);
o.write_shift(2, R);
o.write_shift(2, C);
o.write_shift(2, ixfe||0);
return o;
}
/* 2.5.134 */
function parse_frtHeader(blob) {
var rt = blob.read_shift(2);
var flags = blob.read_shift(2); // TODO: parse these flags
blob.l += 8;
return {type: rt, flags: flags};
}
function parse_OptXLUnicodeString(blob, length, opts) { return length === 0 ? "" : parse_XLUnicodeString2(blob, length, opts); }
/* 2.5.344 */
function parse_XTI(blob, length, opts) {
var w = opts.biff > 8 ? 4 : 2;
var iSupBook = blob.read_shift(w), itabFirst = blob.read_shift(w,'i'), itabLast = blob.read_shift(w,'i');
return [iSupBook, itabFirst, itabLast];
}
/* 2.5.218 */
function parse_RkRec(blob, length) {
var ixfe = blob.read_shift(2);
var RK = parse_RkNumber(blob);
return [ixfe, RK];
}
/* 2.5.1 */
function parse_AddinUdf(blob, length, opts) {
blob.l += 4; length -= 4;
var l = blob.l + length;
var udfName = parse_ShortXLUnicodeString(blob, length, opts);
var cb = blob.read_shift(2);
l -= blob.l;
if(cb !== l) throw new Error("Malformed AddinUdf: padding = " + l + " != " + cb);
blob.l += cb;
return udfName;
}
/* 2.5.209 TODO: Check sizes */
function parse_Ref8U(blob, length) {
var rwFirst = blob.read_shift(2);
var rwLast = blob.read_shift(2);
var colFirst = blob.read_shift(2);
var colLast = blob.read_shift(2);
return {s:{c:colFirst, r:rwFirst}, e:{c:colLast,r:rwLast}};
}
/* 2.5.211 */
function parse_RefU(blob, length) {
var rwFirst = blob.read_shift(2);
var rwLast = blob.read_shift(2);
var colFirst = blob.read_shift(1);
var colLast = blob.read_shift(1);
return {s:{c:colFirst, r:rwFirst}, e:{c:colLast,r:rwLast}};
}
/* 2.5.207 */
var parse_Ref = parse_RefU;
/* 2.5.143 */
function parse_FtCmo(blob, length) {
blob.l += 4;
var ot = blob.read_shift(2);
var id = blob.read_shift(2);
var flags = blob.read_shift(2);
blob.l+=12;
return [id, ot, flags];
}
/* 2.5.149 */
function parse_FtNts(blob, length) {
var out = {};
blob.l += 4;
blob.l += 16; // GUID TODO
out.fSharedNote = blob.read_shift(2);
blob.l += 4;
return out;
}
/* 2.5.142 */
function parse_FtCf(blob, length) {
var out = {};
blob.l += 4;
blob.cf = blob.read_shift(2);
return out;
}
/* 2.5.140 - 2.5.154 and friends */
function parse_FtSkip(blob, length) { blob.l += 2; blob.l += blob.read_shift(2); }
var FtTab = {
/*::[*/0x00/*::]*/: parse_FtSkip, /* FtEnd */
/*::[*/0x04/*::]*/: parse_FtSkip, /* FtMacro */
/*::[*/0x05/*::]*/: parse_FtSkip, /* FtButton */
/*::[*/0x06/*::]*/: parse_FtSkip, /* FtGmo */
/*::[*/0x07/*::]*/: parse_FtCf, /* FtCf */
/*::[*/0x08/*::]*/: parse_FtSkip, /* FtPioGrbit */
/*::[*/0x09/*::]*/: parse_FtSkip, /* FtPictFmla */
/*::[*/0x0A/*::]*/: parse_FtSkip, /* FtCbls */
/*::[*/0x0B/*::]*/: parse_FtSkip, /* FtRbo */
/*::[*/0x0C/*::]*/: parse_FtSkip, /* FtSbs */
/*::[*/0x0D/*::]*/: parse_FtNts, /* FtNts */
/*::[*/0x0E/*::]*/: parse_FtSkip, /* FtSbsFmla */
/*::[*/0x0F/*::]*/: parse_FtSkip, /* FtGboData */
/*::[*/0x10/*::]*/: parse_FtSkip, /* FtEdoData */
/*::[*/0x11/*::]*/: parse_FtSkip, /* FtRboData */
/*::[*/0x12/*::]*/: parse_FtSkip, /* FtCblsData */
/*::[*/0x13/*::]*/: parse_FtSkip, /* FtLbsData */
/*::[*/0x14/*::]*/: parse_FtSkip, /* FtCblsFmla */
/*::[*/0x15/*::]*/: parse_FtCmo
};
function parse_FtArray(blob, length, ot) {
var tgt = blob.l + length;
var fts = [];
while(blob.l < tgt) {
var ft = blob.read_shift(2);
blob.l-=2;
try {
fts.push(FtTab[ft](blob, tgt - blob.l));
} catch(e) { blob.l = tgt; return fts; }
}
if(blob.l != tgt) blob.l = tgt; //throw new Error("bad Object Ft-sequence");
return fts;
}
/* --- 2.4 Records --- */
/* 2.4.21 */
function parse_BOF(blob, length) {
var o = {BIFFVer:0, dt:0};
o.BIFFVer = blob.read_shift(2); length -= 2;
if(length >= 2) { o.dt = blob.read_shift(2); blob.l -= 2; }
switch(o.BIFFVer) {
case 0x0600: /* BIFF8 */
case 0x0500: /* BIFF5 */
case 0x0002: case 0x0007: /* BIFF2 */
break;
default: if(length > 6) throw new Error("Unexpected BIFF Ver " + o.BIFFVer);
}
blob.read_shift(length);
return o;
}
function write_BOF(wb/*:Workbook*/, t/*:number*/, o) {
var h = 0x0600, w = 16;
switch(o.bookType) {
case 'biff8': break;
case 'biff5': h = 0x0500; w = 8; break;
case 'biff4': h = 0x0004; w = 6; break;
case 'biff3': h = 0x0003; w = 6; break;
case 'biff2': h = 0x0002; w = 4; break;
default: throw new Error("unsupported BIFF version");
}
var out = new_buf(w);
out.write_shift(2, h);
out.write_shift(2, t);
if(w > 4) out.write_shift(2, 0x7262);
if(w > 6) out.write_shift(2, 0x07CD);
if(w > 8) {
out.write_shift(2, 0xC009);
out.write_shift(2, 0x0001);
out.write_shift(2, 0x0706);
out.write_shift(2, 0x0000);
}
return out;
}
/* 2.4.146 */
function parse_InterfaceHdr(blob, length) {
if(length === 0) return 0x04b0;
var q;
if((q=blob.read_shift(2))!==0x04b0){/* empty */}
return 0x04b0;
}
/* 2.4.349 */
function parse_WriteAccess(blob, length, opts) {
if(opts.enc) { blob.l += length; return ""; }
var l = blob.l;
// TODO: make sure XLUnicodeString doesnt overrun
var UserName = parse_XLUnicodeString(blob, 0, opts);
blob.read_shift(length + l - blob.l);
return UserName;
}
function write_WriteAccess(s/*:string*/, opts) {
var b8 = !opts || opts.biff == 8;
var o = new_buf(b8 ? 112 : 54);
o.write_shift(opts.biff == 8 ? 2 : 1, 7);
o.write_shift(1, 0);
o.write_shift(4, 0x33336853);
o.write_shift(4, 0x00534A74);
while(o.l < o.length) o.write_shift(1, 0);
return o;
}
/* 2.4.351 */
function parse_WsBool(blob, length, opts) {
var flags = opts && opts.biff == 8 || length == 2 ? blob.read_shift(2) : (blob.l += length, 0);
return { fDialog: flags & 0x10 };
}
/* 2.4.28 */
function parse_BoundSheet8(blob, length, opts) {
var pos = blob.read_shift(4);
var hidden = blob.read_shift(1) & 0x03;
var dt = blob.read_shift(1);
switch(dt) {
case 0: dt = 'Worksheet'; break;
case 1: dt = 'Macrosheet'; break;
case 2: dt = 'Chartsheet'; break;
case 6: dt = 'VBAModule'; break;
}
var name = parse_ShortXLUnicodeString(blob, 0, opts);
if(name.length === 0) name = "Sheet1";
return { pos:pos, hs:hidden, dt:dt, name:name };
}
function write_BoundSheet8(data, opts) {
var w = (!opts || opts.biff >= 8 ? 2 : 1);
var o = new_buf(8 + w * data.name.length);
o.write_shift(4, data.pos);
o.write_shift(1, data.hs || 0);
o.write_shift(1, data.dt);
o.write_shift(1, data.name.length);
if(opts.biff >= 8) o.write_shift(1, 1);
o.write_shift(w * data.name.length, data.name, opts.biff < 8 ? 'sbcs' : 'utf16le');
return o.slice(0, o.l);
}
/* 2.4.265 TODO */
function parse_SST(blob, length)/*:SST*/ {
var end = blob.l + length;
var cnt = blob.read_shift(4);
var ucnt = blob.read_shift(4);
var strs/*:SST*/ = ([]/*:any*/);
for(var i = 0; i != ucnt && blob.l < end; ++i) {
strs.push(parse_XLUnicodeRichExtendedString(blob));
}
strs.Count = cnt; strs.Unique = ucnt;
return strs;
}
/* 2.4.107 */
function parse_ExtSST(blob, length) {
var extsst = {};
extsst.dsst = blob.read_shift(2);
blob.l += length-2;
return extsst;
}
/* 2.4.221 TODO: check BIFF2-4 */
function parse_Row(blob, length) {
var z = ({}/*:any*/);
z.r = blob.read_shift(2);
z.c = blob.read_shift(2);
z.cnt = blob.read_shift(2) - z.c;
var miyRw = blob.read_shift(2);
blob.l += 4; // reserved(2), unused(2)
var flags = blob.read_shift(1); // various flags
blob.l += 3; // reserved(8), ixfe(12), flags(4)
if(flags & 0x07) z.level = flags & 0x07;
// collapsed: flags & 0x10
if(flags & 0x20) z.hidden = true;
if(flags & 0x40) z.hpt = miyRw / 20;
return z;
}
/* 2.4.125 */
function parse_ForceFullCalculation(blob, length) {
var header = parse_frtHeader(blob);
if(header.type != 0x08A3) throw new Error("Invalid Future Record " + header.type);
var fullcalc = blob.read_shift(4);
return fullcalc !== 0x0;
}
/* 2.4.215 rt */
function parse_RecalcId(blob, length) {
blob.read_shift(2);
return blob.read_shift(4);
}
/* 2.4.87 */
function parse_DefaultRowHeight(blob, length, opts) {
var f = 0;
if(!(opts && opts.biff == 2)) {
f = blob.read_shift(2);
}
var miyRw = blob.read_shift(2);
if((opts && opts.biff == 2)) {
f = 1 - (miyRw >> 15); miyRw &= 0x7fff;
}
var fl = {Unsynced:f&1,DyZero:(f&2)>>1,ExAsc:(f&4)>>2,ExDsc:(f&8)>>3};
return [fl, miyRw];
}
/* 2.4.345 TODO */
function parse_Window1(blob, length) {
var xWn = blob.read_shift(2), yWn = blob.read_shift(2), dxWn = blob.read_shift(2), dyWn = blob.read_shift(2);
var flags = blob.read_shift(2), iTabCur = blob.read_shift(2), iTabFirst = blob.read_shift(2);
var ctabSel = blob.read_shift(2), wTabRatio = blob.read_shift(2);
return { Pos: [xWn, yWn], Dim: [dxWn, dyWn], Flags: flags, CurTab: iTabCur,
FirstTab: iTabFirst, Selected: ctabSel, TabRatio: wTabRatio };
}
function write_Window1(opts) {
var o = new_buf(18);
o.write_shift(2, 0);
o.write_shift(2, 0);
o.write_shift(2, 0x7260);
o.write_shift(2, 0x44c0);
o.write_shift(2, 0x38);
o.write_shift(2, 0);
o.write_shift(2, 0);
o.write_shift(2, 1);
o.write_shift(2, 0x01f4);
return o;
}
/* 2.4.122 TODO */
function parse_Font(blob, length, opts) {
var o/*:any*/ = {
dyHeight: blob.read_shift(2),
fl: blob.read_shift(2)
};
switch(opts && opts.biff || 8) {
case 2: break;
case 3: case 4: blob.l += 2; break;
default: blob.l += 10; break;
}
o.name = parse_ShortXLUnicodeString(blob, 0, opts);
return o;
}
/* 2.4.149 */
function parse_LabelSst(blob, length) {
var cell = parse_XLSCell(blob);
cell.isst = blob.read_shift(4);
return cell;
}
/* 2.4.148 */
function parse_Label(blob, length, opts) {
var target = blob.l + length;
var cell = parse_XLSCell(blob, 6);
if(opts.biff == 2) blob.l++;
var str = parse_XLUnicodeString(blob, target - blob.l, opts);
cell.val = str;
return cell;
}
function write_Label(R/*:number*/, C/*:number*/, v/*:string*/, opts) {
var b8 = !opts || opts.biff == 8;
var o = new_buf(6 + 2 + (+b8) + (1 + b8) * v.length);
write_XLSCell(R, C, 0, o);
o.write_shift(2, v.length);
if(b8) o.write_shift(1, 1);
o.write_shift((1 + b8) * v.length, v, b8 ? 'utf16le' : 'sbcs');
return o;
}
/* 2.4.126 Number Formats */
function parse_Format(blob, length, opts) {
var numFmtId = blob.read_shift(2);
var fmtstr = parse_XLUnicodeString2(blob, 0, opts);
return [numFmtId, fmtstr];
}
var parse_BIFF2Format = parse_XLUnicodeString2;
/* 2.4.90 */
function parse_Dimensions(blob, length, opts) {
var end = blob.l + length;
var w = opts.biff == 8 || !opts.biff ? 4 : 2;
var r = blob.read_shift(w), R = blob.read_shift(w);
var c = blob.read_shift(2), C = blob.read_shift(2);
blob.l = end;
return {s: {r:r, c:c}, e: {r:R, c:C}};
}
function write_Dimensions(range, opts) {
var w = opts.biff == 8 || !opts.biff ? 4 : 2;
var o = new_buf(2*w + 6);
o.write_shift(w, range.s.r);
o.write_shift(w, range.e.r + 1);
o.write_shift(2, range.s.c);
o.write_shift(2, range.e.c + 1);
o.write_shift(2, 0);
return o;
}
/* 2.4.220 */
function parse_RK(blob, length) {
var rw = blob.read_shift(2), col = blob.read_shift(2);
var rkrec = parse_RkRec(blob);
return {r:rw, c:col, ixfe:rkrec[0], rknum:rkrec[1]};
}
/* 2.4.175 */
function parse_MulRk(blob, length) {
var target = blob.l + length - 2;
var rw = blob.read_shift(2), col = blob.read_shift(2);
var rkrecs = [];
while(blob.l < target) rkrecs.push(parse_RkRec(blob));
if(blob.l !== target) throw new Error("MulRK read error");
var lastcol = blob.read_shift(2);
if(rkrecs.length != lastcol - col + 1) throw new Error("MulRK length mismatch");
return {r:rw, c:col, C:lastcol, rkrec:rkrecs};
}
/* 2.4.174 */
function parse_MulBlank(blob, length) {
var target = blob.l + length - 2;
var rw = blob.read_shift(2), col = blob.read_shift(2);
var ixfes = [];
while(blob.l < target) ixfes.push(blob.read_shift(2));
if(blob.l !== target) throw new Error("MulBlank read error");
var lastcol = blob.read_shift(2);
if(ixfes.length != lastcol - col + 1) throw new Error("MulBlank length mismatch");
return {r:rw, c:col, C:lastcol, ixfe:ixfes};
}
/* 2.5.20 2.5.249 TODO: interpret values here */
function parse_CellStyleXF(blob, length, style, opts) {
var o = {};
var a = blob.read_shift(4), b = blob.read_shift(4);
var c = blob.read_shift(4), d = blob.read_shift(2);
o.patternType = XLSFillPattern[c >> 26];
if(!opts.cellStyles) return o;
o.alc = a & 0x07;
o.fWrap = (a >> 3) & 0x01;
o.alcV = (a >> 4) & 0x07;
o.fJustLast = (a >> 7) & 0x01;
o.trot = (a >> 8) & 0xFF;
o.cIndent = (a >> 16) & 0x0F;
o.fShrinkToFit = (a >> 20) & 0x01;
o.iReadOrder = (a >> 22) & 0x02;
o.fAtrNum = (a >> 26) & 0x01;
o.fAtrFnt = (a >> 27) & 0x01;
o.fAtrAlc = (a >> 28) & 0x01;
o.fAtrBdr = (a >> 29) & 0x01;
o.fAtrPat = (a >> 30) & 0x01;
o.fAtrProt = (a >> 31) & 0x01;
o.dgLeft = b & 0x0F;
o.dgRight = (b >> 4) & 0x0F;
o.dgTop = (b >> 8) & 0x0F;
o.dgBottom = (b >> 12) & 0x0F;
o.icvLeft = (b >> 16) & 0x7F;
o.icvRight = (b >> 23) & 0x7F;
o.grbitDiag = (b >> 30) & 0x03;
o.icvTop = c & 0x7F;
o.icvBottom = (c >> 7) & 0x7F;
o.icvDiag = (c >> 14) & 0x7F;
o.dgDiag = (c >> 21) & 0x0F;
o.icvFore = d & 0x7F;
o.icvBack = (d >> 7) & 0x7F;
o.fsxButton = (d >> 14) & 0x01;
return o;
}
function parse_CellXF(blob, length, opts) {return parse_CellStyleXF(blob,length,0, opts);}
function parse_StyleXF(blob, length, opts) {return parse_CellStyleXF(blob,length,1, opts);}
/* 2.4.353 TODO: actually do this right */
function parse_XF(blob, length, opts) {
var o = {};
o.ifnt = blob.read_shift(2); o.numFmtId = blob.read_shift(2); o.flags = blob.read_shift(2);
o.fStyle = (o.flags >> 2) & 0x01;
length -= 6;
o.data = parse_CellStyleXF(blob, length, o.fStyle, opts);
return o;
}
/* 2.4.134 */
function parse_Guts(blob, length) {
blob.l += 4;
var out = [blob.read_shift(2), blob.read_shift(2)];
if(out[0] !== 0) out[0]--;
if(out[1] !== 0) out[1]--;
if(out[0] > 7 || out[1] > 7) throw new Error("Bad Gutters: " + out.join("|"));
return out;
}
function write_Guts(guts/*:Array<number>*/) {
var o = new_buf(8);
o.write_shift(4, 0);
o.write_shift(2, guts[0] ? guts[0] + 1 : 0);
o.write_shift(2, guts[1] ? guts[1] + 1 : 0);
return o;
}
/* 2.4.24 */
function parse_BoolErr(blob, length, opts) {
var cell = parse_XLSCell(blob, 6);
if(opts.biff == 2) ++blob.l;
var val = parse_Bes(blob, 2);
cell.val = val;
cell.t = (val === true || val === false) ? 'b' : 'e';
return cell;
}
function write_BoolErr(R/*:number*/, C/*:number*/, v, opts, t/*:string*/) {
var o = new_buf(8);
write_XLSCell(R, C, 0, o);
write_Bes(v, t, o);
return o;
}
/* 2.4.180 Number */
function parse_Number(blob, length) {
var cell = parse_XLSCell(blob, 6);
var xnum = parse_Xnum(blob, 8);
cell.val = xnum;
return cell;
}
function write_Number(R/*:number*/, C/*:number*/, v, opts) {
var o = new_buf(14);
write_XLSCell(R, C, 0, o);
write_Xnum(v, o);
return o;
}
var parse_XLHeaderFooter = parse_OptXLUnicodeString; // TODO: parse 2.4.136
/* 2.4.271 */
function parse_SupBook(blob, length, opts) {
var end = blob.l + length;
var ctab = blob.read_shift(2);
var cch = blob.read_shift(2);
opts.sbcch = cch;
if(cch == 0x0401 || cch == 0x3A01) return [cch, ctab];
if(cch < 0x01 || cch >0xff) throw new Error("Unexpected SupBook type: "+cch);
var virtPath = parse_XLUnicodeStringNoCch(blob, cch);
/* TODO: 2.5.277 Virtual Path */
var rgst = [];
while(end > blob.l) rgst.push(parse_XLUnicodeString(blob));
return [cch, ctab, virtPath, rgst];
}
/* 2.4.105 TODO */
function parse_ExternName(blob, length, opts) {
var flags = blob.read_shift(2);
var body;
var o = ({
fBuiltIn: flags & 0x01,
fWantAdvise: (flags >>> 1) & 0x01,
fWantPict: (flags >>> 2) & 0x01,
fOle: (flags >>> 3) & 0x01,
fOleLink: (flags >>> 4) & 0x01,
cf: (flags >>> 5) & 0x3FF,
fIcon: flags >>> 15 & 0x01
}/*:any*/);
if(opts.sbcch === 0x3A01) body = parse_AddinUdf(blob, length-2, opts);
//else throw new Error("unsupported SupBook cch: " + opts.sbcch);
o.body = body || blob.read_shift(length-2);
if(typeof body === "string") o.Name = body;
return o;
}
/* 2.4.150 TODO */
var XLSLblBuiltIn = [
"_xlnm.Consolidate_Area",
"_xlnm.Auto_Open",
"_xlnm.Auto_Close",
"_xlnm.Extract",
"_xlnm.Database",
"_xlnm.Criteria",
"_xlnm.Print_Area",
"_xlnm.Print_Titles",
"_xlnm.Recorder",
"_xlnm.Data_Form",
"_xlnm.Auto_Activate",
"_xlnm.Auto_Deactivate",
"_xlnm.Sheet_Title",
"_xlnm._FilterDatabase"
];
function parse_Lbl(blob, length, opts) {
var target = blob.l + length;
var flags = blob.read_shift(2);
var chKey = blob.read_shift(1);
var cch = blob.read_shift(1);
var cce = blob.read_shift(opts && opts.biff == 2 ? 1 : 2);
var itab = 0;
if(!opts || opts.biff >= 5) {
blob.l += 2;
itab = blob.read_shift(2);
blob.l += 4;
}
var name = parse_XLUnicodeStringNoCch(blob, cch, opts);
if(flags & 0x20) name = XLSLblBuiltIn[name.charCodeAt(0)];
var npflen = target - blob.l; if(opts && opts.biff == 2) --npflen;
var rgce = target == blob.l || cce === 0 ? [] : parse_NameParsedFormula(blob, npflen, opts, cce);
return {
chKey: chKey,
Name: name,
itab: itab,
rgce: rgce
};
}
/* 2.4.106 TODO: verify filename encoding */
function parse_ExternSheet(blob, length, opts) {
if(opts.biff < 8) return parse_BIFF5ExternSheet(blob, length, opts);
var o = [], target = blob.l + length, len = blob.read_shift(opts.biff > 8 ? 4 : 2);
while(len-- !== 0) o.push(parse_XTI(blob, opts.biff > 8 ? 12 : 6, opts));
// [iSupBook, itabFirst, itabLast];
var oo = [];
return o;
}
function parse_BIFF5ExternSheet(blob, length, opts) {
if(blob[blob.l + 1] == 0x03) blob[blob.l]++;
var o = parse_ShortXLUnicodeString(blob, length, opts);
return o.charCodeAt(0) == 0x03 ? o.slice(1) : o;
}
/* 2.4.176 TODO: check older biff */
function parse_NameCmt(blob, length, opts) {
if(opts.biff < 8) { blob.l += length; return; }
var cchName = blob.read_shift(2);
var cchComment = blob.read_shift(2);
var name = parse_XLUnicodeStringNoCch(blob, cchName, opts);
var comment = parse_XLUnicodeStringNoCch(blob, cchComment, opts);
return [name, comment];
}
/* 2.4.260 */
function parse_ShrFmla(blob, length, opts) {
var ref = parse_RefU(blob, 6);
blob.l++;
var cUse = blob.read_shift(1);
length -= 8;
return [parse_SharedParsedFormula(blob, length, opts), cUse];
}
/* 2.4.4 TODO */
function parse_Array(blob, length, opts) {
var ref = parse_Ref(blob, 6);
/* TODO: fAlwaysCalc */
switch(opts.biff) {
case 2: blob.l ++; length -= 7; break;
case 3: case 4: blob.l += 2; length -= 8; break;
default: blob.l += 6; length -= 12;
}
return [ref, parse_ArrayParsedFormula(blob, length, opts, ref)];
}
/* 2.4.173 */
function parse_MTRSettings(blob, length) {
var fMTREnabled = blob.read_shift(4) !== 0x00;
var fUserSetThreadCount = blob.read_shift(4) !== 0x00;
var cUserThreadCount = blob.read_shift(4);
return [fMTREnabled, fUserSetThreadCount, cUserThreadCount];
}
/* 2.5.186 TODO: BIFF5 */
function parse_NoteSh(blob, length, opts) {
if(opts.biff < 8) return;
var row = blob.read_shift(2), col = blob.read_shift(2);
var flags = blob.read_shift(2), idObj = blob.read_shift(2);
var stAuthor = parse_XLUnicodeString2(blob, 0, opts);
if(opts.biff < 8) blob.read_shift(1);
return [{r:row,c:col}, stAuthor, idObj, flags];
}
/* 2.4.179 */
function parse_Note(blob, length, opts) {
/* TODO: Support revisions */
return parse_NoteSh(blob, length, opts);
}
/* 2.4.168 */
function parse_MergeCells(blob, length) {
var merges = [];
var cmcs = blob.read_shift(2);
while (cmcs--) merges.push(parse_Ref8U(blob,length));
return merges;
}
/* 2.4.181 TODO: parse all the things! */
function parse_Obj(blob, length, opts) {
if(opts && opts.biff < 8) return parse_BIFF5Obj(blob, length, opts);
var cmo = parse_FtCmo(blob, 22); // id, ot, flags
var fts = parse_FtArray(blob, length-22, cmo[1]);
return { cmo: cmo, ft:fts };
}
/* from older spec */
var parse_BIFF5OT = [];
parse_BIFF5OT[0x08] = function(blob, length, opts) {
var tgt = blob.l + length;
blob.l += 10; // todo
var cf = blob.read_shift(2);
blob.l += 4;
var cbPictFmla = blob.read_shift(2);
blob.l += 2;
var grbit = blob.read_shift(2);
blob.l += 4;
var cchName = blob.read_shift(1);
blob.l += cchName; // TODO: stName
blob.l = tgt; // TODO: fmla
return { fmt:cf };
};
function parse_BIFF5Obj(blob, length, opts) {
var cnt = blob.read_shift(4);
var ot = blob.read_shift(2);
var id = blob.read_shift(2);
var grbit = blob.read_shift(2);
var colL = blob.read_shift(2);
var dxL = blob.read_shift(2);
var rwT = blob.read_shift(2);
var dyT = blob.read_shift(2);
var colR = blob.read_shift(2);
var dxR = blob.read_shift(2);
var rwB = blob.read_shift(2);
var dyB = blob.read_shift(2);
var cbMacro = blob.read_shift(2);
blob.l += 6;
length -= 36;
var fts = [];
fts.push((parse_BIFF5OT[ot]||parsenoop)(blob, length, opts));
return { cmo: [id, ot, grbit], ft:fts };
}
/* 2.4.329 TODO: parse properly */
function parse_TxO(blob, length, opts) {
var s = blob.l;
var texts = "";
try {
blob.l += 4;
var ot = (opts.lastobj||{cmo:[0,0]}).cmo[1];
var controlInfo;
if([0,5,7,11,12,14].indexOf(ot) == -1) blob.l += 6;
else controlInfo = parse_ControlInfo(blob, 6, opts);
var cchText = blob.read_shift(2);
var cbRuns = blob.read_shift(2);
var ifntEmpty = parseuint16(blob, 2);
var len = blob.read_shift(2);
blob.l += len;
//var fmla = parse_ObjFmla(blob, s + length - blob.l);
for(var i = 1; i < blob.lens.length-1; ++i) {
if(blob.l-s != blob.lens[i]) throw new Error("TxO: bad continue record");
var hdr = blob[blob.l];
var t = parse_XLUnicodeStringNoCch(blob, blob.lens[i+1]-blob.lens[i]-1);
texts += t;
if(texts.length >= (hdr ? cchText : 2*cchText)) break;
}
if(texts.length !== cchText && texts.length !== cchText*2) {
throw new Error("cchText: " + cchText + " != " + texts.length);
}
blob.l = s + length;
/* 2.5.272 TxORuns */
// var rgTxoRuns = [];
// for(var j = 0; j != cbRuns/8-1; ++j) blob.l += 8;
// var cchText2 = blob.read_shift(2);
// if(cchText2 !== cchText) throw new Error("TxOLastRun mismatch: " + cchText2 + " " + cchText);
// blob.l += 6;
// if(s + length != blob.l) throw new Error("TxO " + (s + length) + ", at " + blob.l);
return { t: texts };
} catch(e) { blob.l = s + length; return { t: texts }; }
}
/* 2.4.140 */
function parse_HLink(blob, length) {
var ref = parse_Ref8U(blob, 8);
blob.l += 16; /* CLSID */
var hlink = parse_Hyperlink(blob, length-24);
return [ref, hlink];
}
/* 2.4.141 */
function parse_HLinkTooltip(blob, length) {
var end = blob.l + length;
blob.read_shift(2);
var ref = parse_Ref8U(blob, 8);
var wzTooltip = blob.read_shift((length-10)/2, 'dbcs-cont');
wzTooltip = wzTooltip.replace(chr0,"");
return [ref, wzTooltip];
}
/* 2.4.63 */
function parse_Country(blob, length) {
var o = [], d;
d = blob.read_shift(2); o[0] = CountryEnum[d] || d;
d = blob.read_shift(2); o[1] = CountryEnum[d] || d;
return o;
}
function write_Country(o) {
if(!o) o = new_buf(4);
o.write_shift(2, 0x01);
o.write_shift(2, 0x01);
return o;
}
/* 2.4.50 ClrtClient */
function parse_ClrtClient(blob, length) {
var ccv = blob.read_shift(2);
var o = [];
while(ccv-->0) o.push(parse_LongRGB(blob, 8));
return o;
}
/* 2.4.188 */
function parse_Palette(blob, length) {
var ccv = blob.read_shift(2);
var o = [];
while(ccv-->0) o.push(parse_LongRGB(blob, 8));
return o;
}
/* 2.4.354 */
function parse_XFCRC(blob, length) {
blob.l += 2;
var o = {cxfs:0, crc:0};
o.cxfs = blob.read_shift(2);
o.crc = blob.read_shift(4);
return o;
}
/* 2.4.53 TODO: parse flags */
/* [MS-XLSB] 2.4.323 TODO: parse flags */
function parse_ColInfo(blob, length, opts) {
if(!opts.cellStyles) return parsenoop(blob, length);
var w = opts && opts.biff >= 12 ? 4 : 2;
var colFirst = blob.read_shift(w);
var colLast = blob.read_shift(w);
var coldx = blob.read_shift(w);
var ixfe = blob.read_shift(w);
var flags = blob.read_shift(2);
if(w == 2) blob.l += 2;
return {s:colFirst, e:colLast, w:coldx, ixfe:ixfe, flags:flags};
}
/* 2.4.257 */
function parse_Setup(blob, length, opts) {
var o = {};
blob.l += 16;
o.header = parse_Xnum(blob, 8);
o.footer = parse_Xnum(blob, 8);
blob.l += 2;
return o;
}
/* 2.4.261 */
function parse_ShtProps(blob, length, opts) {
var def = {area:false};
if(opts.biff != 5) { blob.l += length; return def; }
var d = blob.read_shift(1); blob.l += 3;
if((d & 0x10)) def.area = true;
return def;
}
/* 2.4.241 */
function write_RRTabId(n/*:number*/) {
var out = new_buf(2 * n);
for(var i = 0; i < n; ++i) out.write_shift(2, i+1);
return out;
}
var parse_Blank = parse_XLSCell; /* 2.4.20 Just the cell */
var parse_Scl = parseuint16a; /* 2.4.247 num, den */
var parse_String = parse_XLUnicodeString; /* 2.4.268 */
/* --- Specific to versions before BIFF8 --- */
function parse_ImData(blob, length, opts) {
var tgt = blob.l + length;
var cf = blob.read_shift(2);
var env = blob.read_shift(2);
var lcb = blob.read_shift(4);
var o = {fmt:cf, env:env, len:lcb, data:blob.slice(blob.l,blob.l+lcb)};
blob.l += lcb;
return o;
}
function parse_BIFF5String(blob) {
var len = blob.read_shift(1);
return blob.read_shift(len, 'sbcs-cont');
}
/* BIFF2_??? where ??? is the name from [XLS] */
function parse_BIFF2STR(blob, length, opts) {
var cell = parse_XLSCell(blob, 6);
++blob.l;
var str = parse_XLUnicodeString2(blob, length-7, opts);
cell.t = 'str';
cell.val = str;
return cell;
}
function parse_BIFF2NUM(blob, length, opts) {
var cell = parse_XLSCell(blob, 6);
++blob.l;
var num = parse_Xnum(blob, 8);
cell.t = 'n';
cell.val = num;
return cell;
}
function write_BIFF2NUM(r/*:number*/, c/*:number*/, val/*:number*/) {
var out = new_buf(15);
write_BIFF2Cell(out, r, c);
out.write_shift(8, val, 'f');
return out;
}
function parse_BIFF2INT(blob, length) {
var cell = parse_XLSCell(blob, 6);
++blob.l;
var num = blob.read_shift(2);
cell.t = 'n';
cell.val = num;
return cell;
}
function write_BIFF2INT(r/*:number*/, c/*:number*/, val/*:number*/) {
var out = new_buf(9);
write_BIFF2Cell(out, r, c);
out.write_shift(2, val);
return out;
}
function parse_BIFF2STRING(blob, length) {
var cch = blob.read_shift(1);
if(cch === 0) { blob.l++; return ""; }
return blob.read_shift(cch, 'sbcs-cont');
}
/* TODO: convert to BIFF8 font struct */
function parse_BIFF2FONTXTRA(blob, length) {
blob.l += 6; // unknown
blob.l += 2; // font weight "bls"
blob.l += 1; // charset
blob.l += 3; // unknown
blob.l += 1; // font family
blob.l += length - 13;
}
/* TODO: parse rich text runs */
function parse_RString(blob, length, opts) {
var end = blob.l + length;
var cell = parse_XLSCell(blob, 6);
var cch = blob.read_shift(2);
var str = parse_XLUnicodeStringNoCch(blob, cch, opts);
blob.l = end;
cell.t = 'str';
cell.val = str;
return cell;
}