deno.land / x / sheetjs@v0.18.3 / bits / 38_xlstypes.js
نووسراو ببینە
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638/* [MS-DTYP] 2.3.3 FILETIME *//* [MS-OLEDS] 2.1.3 FILETIME (Packet Version) *//* [MS-OLEPS] 2.8 FILETIME (Packet Version) */function parse_FILETIME(blob) { var dwLowDateTime = blob.read_shift(4), dwHighDateTime = blob.read_shift(4); return new Date(((dwHighDateTime/1e7*Math.pow(2,32) + dwLowDateTime/1e7) - 11644473600)*1000).toISOString().replace(/\.000/,"");}function write_FILETIME(time/*:string|Date*/) { var date = (typeof time == "string") ? new Date(Date.parse(time)) : time; var t = date.getTime() / 1000 + 11644473600; var l = t % Math.pow(2,32), h = (t - l) / Math.pow(2,32); l *= 1e7; h *= 1e7; var w = (l / Math.pow(2,32)) | 0; if(w > 0) { l = l % Math.pow(2,32); h += w; } var o = new_buf(8); o.write_shift(4, l); o.write_shift(4, h); return o;}
/* [MS-OSHARED] 2.3.3.1.4 Lpstr */function parse_lpstr(blob, type, pad/*:?number*/) { var start = blob.l; var str = blob.read_shift(0, 'lpstr-cp'); if(pad) while((blob.l - start) & 3) ++blob.l; return str;}
/* [MS-OSHARED] 2.3.3.1.6 Lpwstr */function parse_lpwstr(blob, type, pad) { var str = blob.read_shift(0, 'lpwstr'); if(pad) blob.l += (4 - ((str.length+1) & 3)) & 3; return str;}
/* [MS-OSHARED] 2.3.3.1.11 VtString *//* [MS-OSHARED] 2.3.3.1.12 VtUnalignedString */function parse_VtStringBase(blob, stringType, pad) { if(stringType === 0x1F /*VT_LPWSTR*/) return parse_lpwstr(blob); return parse_lpstr(blob, stringType, pad);}
function parse_VtString(blob, t/*:number*/, pad/*:?boolean*/) { return parse_VtStringBase(blob, t, pad === false ? 0: 4); }function parse_VtUnalignedString(blob, t/*:number*/) { if(!t) throw new Error("VtUnalignedString must have positive length"); return parse_VtStringBase(blob, t, 0); }
/* [MS-OSHARED] 2.3.3.1.7 VtVecLpwstrValue */function parse_VtVecLpwstrValue(blob)/*:Array<string>*/ { var length = blob.read_shift(4); var ret/*:Array<string>*/ = []; for(var i = 0; i != length; ++i) { var start = blob.l; ret[i] = blob.read_shift(0, 'lpwstr').replace(chr0,''); if((blob.l - start) & 0x02) blob.l += 2; } return ret;}
/* [MS-OSHARED] 2.3.3.1.9 VtVecUnalignedLpstrValue */function parse_VtVecUnalignedLpstrValue(blob)/*:Array<string>*/ { var length = blob.read_shift(4); var ret/*:Array<string>*/ = []; for(var i = 0; i != length; ++i) ret[i] = blob.read_shift(0, 'lpstr-cp').replace(chr0,''); return ret;}
/* [MS-OSHARED] 2.3.3.1.13 VtHeadingPair */function parse_VtHeadingPair(blob) { var start = blob.l; var headingString = parse_TypedPropertyValue(blob, VT_USTR); if(blob[blob.l] == 0x00 && blob[blob.l+1] == 0x00 && ((blob.l - start) & 0x02)) blob.l += 2; var headerParts = parse_TypedPropertyValue(blob, VT_I4); return [headingString, headerParts];}
/* [MS-OSHARED] 2.3.3.1.14 VtVecHeadingPairValue */function parse_VtVecHeadingPairValue(blob) { var cElements = blob.read_shift(4); var out = []; for(var i = 0; i < cElements / 2; ++i) out.push(parse_VtHeadingPair(blob)); return out;}
/* [MS-OLEPS] 2.18.1 Dictionary (uses 2.17, 2.16) */function parse_dictionary(blob,CodePage) { var cnt = blob.read_shift(4); var dict/*:{[number]:string}*/ = ({}/*:any*/); for(var j = 0; j != cnt; ++j) { var pid = blob.read_shift(4); var len = blob.read_shift(4); dict[pid] = blob.read_shift(len, (CodePage === 0x4B0 ?'utf16le':'utf8')).replace(chr0,'').replace(chr1,'!'); if(CodePage === 0x4B0 && (len % 2)) blob.l += 2; } if(blob.l & 3) blob.l = (blob.l>>2+1)<<2; return dict;}
/* [MS-OLEPS] 2.9 BLOB */function parse_BLOB(blob) { var size = blob.read_shift(4); var bytes = blob.slice(blob.l,blob.l+size); blob.l += size; if((size & 3) > 0) blob.l += (4 - (size & 3)) & 3; return bytes;}
/* [MS-OLEPS] 2.11 ClipboardData */function parse_ClipboardData(blob) { // TODO var o = {}; o.Size = blob.read_shift(4); //o.Format = blob.read_shift(4); blob.l += o.Size + 3 - (o.Size - 1) % 4; return o;}
/* [MS-OLEPS] 2.15 TypedPropertyValue */function parse_TypedPropertyValue(blob, type/*:number*/, _opts)/*:any*/ { var t = blob.read_shift(2), ret, opts = _opts||{}; blob.l += 2; if(type !== VT_VARIANT) if(t !== type && VT_CUSTOM.indexOf(type)===-1 && !((type & 0xFFFE) == 0x101E && (t & 0xFFFE) == 0x101E)) throw new Error('Expected type ' + type + ' saw ' + t); switch(type === VT_VARIANT ? t : type) { case 0x02 /*VT_I2*/: ret = blob.read_shift(2, 'i'); if(!opts.raw) blob.l += 2; return ret; case 0x03 /*VT_I4*/: ret = blob.read_shift(4, 'i'); return ret; case 0x0B /*VT_BOOL*/: return blob.read_shift(4) !== 0x0; case 0x13 /*VT_UI4*/: ret = blob.read_shift(4); return ret; case 0x1E /*VT_LPSTR*/: return parse_lpstr(blob, t, 4).replace(chr0,''); case 0x1F /*VT_LPWSTR*/: return parse_lpwstr(blob); case 0x40 /*VT_FILETIME*/: return parse_FILETIME(blob); case 0x41 /*VT_BLOB*/: return parse_BLOB(blob); case 0x47 /*VT_CF*/: return parse_ClipboardData(blob); case 0x50 /*VT_STRING*/: return parse_VtString(blob, t, !opts.raw).replace(chr0,''); case 0x51 /*VT_USTR*/: return parse_VtUnalignedString(blob, t/*, 4*/).replace(chr0,''); case 0x100C /*VT_VECTOR|VT_VARIANT*/: return parse_VtVecHeadingPairValue(blob); case 0x101E /*VT_VECTOR|VT_LPSTR*/: case 0x101F /*VT_VECTOR|VT_LPWSTR*/: return t == 0x101F ? parse_VtVecLpwstrValue(blob) : parse_VtVecUnalignedLpstrValue(blob); default: throw new Error("TypedPropertyValue unrecognized type " + type + " " + t); }}function write_TypedPropertyValue(type/*:number*/, value) { var o = new_buf(4), p = new_buf(4); o.write_shift(4, type == 0x50 ? 0x1F : type); switch(type) { case 0x03 /*VT_I4*/: p.write_shift(-4, value); break; case 0x05 /*VT_I4*/: p = new_buf(8); p.write_shift(8, value, 'f'); break; case 0x0B /*VT_BOOL*/: p.write_shift(4, value ? 0x01 : 0x00); break; case 0x40 /*VT_FILETIME*/: /*:: if(typeof value !== "string" && !(value instanceof Date)) throw "unreachable"; */ p = write_FILETIME(value); break; case 0x1F /*VT_LPWSTR*/: case 0x50 /*VT_STRING*/: /*:: if(typeof value !== "string") throw "unreachable"; */ p = new_buf(4 + 2 * (value.length + 1) + (value.length % 2 ? 0 : 2)); p.write_shift(4, value.length + 1); p.write_shift(0, value, "dbcs"); while(p.l != p.length) p.write_shift(1, 0); break; default: throw new Error("TypedPropertyValue unrecognized type " + type + " " + value); } return bconcat([o, p]);}
/* [MS-OLEPS] 2.20 PropertySet */function parse_PropertySet(blob, PIDSI) { var start_addr = blob.l; var size = blob.read_shift(4); var NumProps = blob.read_shift(4); var Props = [], i = 0; var CodePage = 0; var Dictionary = -1, DictObj/*:{[number]:string}*/ = ({}/*:any*/); for(i = 0; i != NumProps; ++i) { var PropID = blob.read_shift(4); var Offset = blob.read_shift(4); Props[i] = [PropID, Offset + start_addr]; } Props.sort(function(x,y) { return x[1] - y[1]; }); var PropH = {}; for(i = 0; i != NumProps; ++i) { if(blob.l !== Props[i][1]) { var fail = true; if(i>0 && PIDSI) switch(PIDSI[Props[i-1][0]].t) { case 0x02 /*VT_I2*/: if(blob.l+2 === Props[i][1]) { blob.l+=2; fail = false; } break; case 0x50 /*VT_STRING*/: if(blob.l <= Props[i][1]) { blob.l=Props[i][1]; fail = false; } break; case 0x100C /*VT_VECTOR|VT_VARIANT*/: if(blob.l <= Props[i][1]) { blob.l=Props[i][1]; fail = false; } break; } if((!PIDSI||i==0) && blob.l <= Props[i][1]) { fail=false; blob.l = Props[i][1]; } if(fail) throw new Error("Read Error: Expected address " + Props[i][1] + ' at ' + blob.l + ' :' + i); } if(PIDSI) { var piddsi = PIDSI[Props[i][0]]; PropH[piddsi.n] = parse_TypedPropertyValue(blob, piddsi.t, {raw:true}); if(piddsi.p === 'version') PropH[piddsi.n] = String(PropH[piddsi.n] >> 16) + "." + ("0000" + String(PropH[piddsi.n] & 0xFFFF)).slice(-4); if(piddsi.n == "CodePage") switch(PropH[piddsi.n]) { case 0: PropH[piddsi.n] = 1252; /* falls through */ case 874: case 932: case 936: case 949: case 950: case 1250: case 1251: case 1253: case 1254: case 1255: case 1256: case 1257: case 1258: case 10000: case 1200: case 1201: case 1252: case 65000: case -536: case 65001: case -535: set_cp(CodePage = (PropH[piddsi.n]>>>0) & 0xFFFF); break; default: throw new Error("Unsupported CodePage: " + PropH[piddsi.n]); } } else { if(Props[i][0] === 0x1) { CodePage = PropH.CodePage = (parse_TypedPropertyValue(blob, VT_I2)/*:number*/); set_cp(CodePage); if(Dictionary !== -1) { var oldpos = blob.l; blob.l = Props[Dictionary][1]; DictObj = parse_dictionary(blob,CodePage); blob.l = oldpos; } } else if(Props[i][0] === 0) { if(CodePage === 0) { Dictionary = i; blob.l = Props[i+1][1]; continue; } DictObj = parse_dictionary(blob,CodePage); } else { var name = DictObj[Props[i][0]]; var val; /* [MS-OSHARED] 2.3.3.2.3.1.2 + PROPVARIANT */ switch(blob[blob.l]) { case 0x41 /*VT_BLOB*/: blob.l += 4; val = parse_BLOB(blob); break; case 0x1E /*VT_LPSTR*/: blob.l += 4; val = parse_VtString(blob, blob[blob.l-4]).replace(/\u0000+$/,""); break; case 0x1F /*VT_LPWSTR*/: blob.l += 4; val = parse_VtString(blob, blob[blob.l-4]).replace(/\u0000+$/,""); break; case 0x03 /*VT_I4*/: blob.l += 4; val = blob.read_shift(4, 'i'); break; case 0x13 /*VT_UI4*/: blob.l += 4; val = blob.read_shift(4); break; case 0x05 /*VT_R8*/: blob.l += 4; val = blob.read_shift(8, 'f'); break; case 0x0B /*VT_BOOL*/: blob.l += 4; val = parsebool(blob, 4); break; case 0x40 /*VT_FILETIME*/: blob.l += 4; val = parseDate(parse_FILETIME(blob)); break; default: throw new Error("unparsed value: " + blob[blob.l]); } PropH[name] = val; } } } blob.l = start_addr + size; /* step ahead to skip padding */ return PropH;}var XLSPSSkip = [ "CodePage", "Thumbnail", "_PID_LINKBASE", "_PID_HLINKS", "SystemIdentifier", "FMTID" ].concat(PseudoPropsPairs);function guess_property_type(val/*:any*/)/*:number*/ { switch(typeof val) { case "boolean": return 0x0B; case "number": return ((val|0)==val) ? 0x03 : 0x05; case "string": return 0x1F; case "object": if(val instanceof Date) return 0x40; break; } return -1;}function write_PropertySet(entries, RE, PIDSI) { var hdr = new_buf(8), piao = [], prop = []; var sz = 8, i = 0;
var pr = new_buf(8), pio = new_buf(8); pr.write_shift(4, 0x0002); pr.write_shift(4, 0x04B0); pio.write_shift(4, 0x0001); prop.push(pr); piao.push(pio); sz += 8 + pr.length;
if(!RE) { pio = new_buf(8); pio.write_shift(4, 0); piao.unshift(pio);
var bufs = [new_buf(4)]; bufs[0].write_shift(4, entries.length); for(i = 0; i < entries.length; ++i) { var value = entries[i][0]; pr = new_buf(4 + 4 + 2 * (value.length + 1) + (value.length % 2 ? 0 : 2)); pr.write_shift(4, i+2); pr.write_shift(4, value.length + 1); pr.write_shift(0, value, "dbcs"); while(pr.l != pr.length) pr.write_shift(1, 0); bufs.push(pr); } pr = bconcat(bufs); prop.unshift(pr); sz += 8 + pr.length; }
for(i = 0; i < entries.length; ++i) { if(RE && !RE[entries[i][0]]) continue; if(XLSPSSkip.indexOf(entries[i][0]) > -1) continue; if(entries[i][1] == null) continue;
var val = entries[i][1], idx = 0; if(RE) { idx = +RE[entries[i][0]]; var pinfo = (PIDSI/*:: || {}*/)[idx]/*:: || {} */; if(pinfo.p == "version" && typeof val == "string") { /*:: if(typeof val !== "string") throw "unreachable"; */ var arr = val.split("."); val = ((+arr[0])<<16) + ((+arr[1])||0); } pr = write_TypedPropertyValue(pinfo.t, val); } else { var T = guess_property_type(val); if(T == -1) { T = 0x1F; val = String(val); } pr = write_TypedPropertyValue(T, val); } prop.push(pr);
pio = new_buf(8); pio.write_shift(4, !RE ? 2+i : idx); piao.push(pio);
sz += 8 + pr.length; }
var w = 8 * (prop.length + 1); for(i = 0; i < prop.length; ++i) { piao[i].write_shift(4, w); w += prop[i].length; } hdr.write_shift(4, sz); hdr.write_shift(4, prop.length); return bconcat([hdr].concat(piao).concat(prop));}
/* [MS-OLEPS] 2.21 PropertySetStream */function parse_PropertySetStream(file, PIDSI, clsid) { var blob = file.content; if(!blob) return ({}/*:any*/); prep_blob(blob, 0);
var NumSets, FMTID0, FMTID1, Offset0, Offset1 = 0; blob.chk('feff', 'Byte Order: ');
/*var vers = */blob.read_shift(2); // TODO: check version var SystemIdentifier = blob.read_shift(4); var CLSID = blob.read_shift(16); if(CLSID !== CFB.utils.consts.HEADER_CLSID && CLSID !== clsid) throw new Error("Bad PropertySet CLSID " + CLSID); NumSets = blob.read_shift(4); if(NumSets !== 1 && NumSets !== 2) throw new Error("Unrecognized #Sets: " + NumSets); FMTID0 = blob.read_shift(16); Offset0 = blob.read_shift(4);
if(NumSets === 1 && Offset0 !== blob.l) throw new Error("Length mismatch: " + Offset0 + " !== " + blob.l); else if(NumSets === 2) { FMTID1 = blob.read_shift(16); Offset1 = blob.read_shift(4); } var PSet0 = parse_PropertySet(blob, PIDSI);
var rval = ({ SystemIdentifier: SystemIdentifier }/*:any*/); for(var y in PSet0) rval[y] = PSet0[y]; //rval.blob = blob; rval.FMTID = FMTID0; //rval.PSet0 = PSet0; if(NumSets === 1) return rval; if(Offset1 - blob.l == 2) blob.l += 2; if(blob.l !== Offset1) throw new Error("Length mismatch 2: " + blob.l + " !== " + Offset1); var PSet1; try { PSet1 = parse_PropertySet(blob, null); } catch(e) {/* empty */} for(y in PSet1) rval[y] = PSet1[y]; rval.FMTID = [FMTID0, FMTID1]; // TODO: verify FMTID0/1 return rval;}function write_PropertySetStream(entries, clsid, RE, PIDSI/*:{[key:string|number]:any}*/, entries2/*:?any*/, clsid2/*:?any*/) { var hdr = new_buf(entries2 ? 68 : 48); var bufs = [hdr]; hdr.write_shift(2, 0xFFFE); hdr.write_shift(2, 0x0000); /* TODO: type 1 props */ hdr.write_shift(4, 0x32363237); hdr.write_shift(16, CFB.utils.consts.HEADER_CLSID, "hex"); hdr.write_shift(4, (entries2 ? 2 : 1)); hdr.write_shift(16, clsid, "hex"); hdr.write_shift(4, (entries2 ? 68 : 48)); var ps0 = write_PropertySet(entries, RE, PIDSI); bufs.push(ps0);
if(entries2) { var ps1 = write_PropertySet(entries2, null, null); hdr.write_shift(16, clsid2, "hex"); hdr.write_shift(4, 68 + ps0.length); bufs.push(ps1); } return bconcat(bufs);}
function parsenoop2(blob, length) { blob.read_shift(length); return null; }function writezeroes(n, o) { if(!o) o=new_buf(n); for(var j=0; j<n; ++j) o.write_shift(1, 0); return o; }
function parslurp(blob, length, cb) { var arr = [], target = blob.l + length; while(blob.l < target) arr.push(cb(blob, target - blob.l)); if(target !== blob.l) throw new Error("Slurp error"); return arr;}
function parsebool(blob, length/*:number*/) { return blob.read_shift(length) === 0x1; }function writebool(v/*:any*/, o) { if(!o) o=new_buf(2); o.write_shift(2, +!!v); return o; }
function parseuint16(blob/*::, length:?number, opts:?any*/) { return blob.read_shift(2, 'u'); }function writeuint16(v/*:number*/, o) { if(!o) o=new_buf(2); o.write_shift(2, v); return o; }function parseuint16a(blob, length/*:: :?number, opts:?any*/) { return parslurp(blob,length,parseuint16);}
/* --- 2.5 Structures --- */
/* [MS-XLS] 2.5.10 Bes (boolean or error) */function parse_Bes(blob/*::, length*/) { var v = blob.read_shift(1), t = blob.read_shift(1); return t === 0x01 ? v : v === 0x01;}function write_Bes(v, t/*:string*/, o) { if(!o) o = new_buf(2); o.write_shift(1, ((t == 'e') ? +v : +!!v)); o.write_shift(1, ((t == 'e') ? 1 : 0)); return o;}
/* [MS-XLS] 2.5.240 ShortXLUnicodeString */function parse_ShortXLUnicodeString(blob, length, opts) { var cch = blob.read_shift(opts && opts.biff >= 12 ? 2 : 1); var encoding = 'sbcs-cont'; var cp = current_codepage; if(opts && opts.biff >= 8) current_codepage = 1200; if(!opts || opts.biff == 8 ) { var fHighByte = blob.read_shift(1); if(fHighByte) { encoding = 'dbcs-cont'; } } else if(opts.biff == 12) { encoding = 'wstr'; } if(opts.biff >= 2 && opts.biff <= 5) encoding = 'cpstr'; var o = cch ? blob.read_shift(cch, encoding) : ""; current_codepage = cp; return o;}
/* 2.5.293 XLUnicodeRichExtendedString */function parse_XLUnicodeRichExtendedString(blob) { var cp = current_codepage; current_codepage = 1200; var cch = blob.read_shift(2), flags = blob.read_shift(1); var /*fHighByte = flags & 0x1,*/ fExtSt = flags & 0x4, fRichSt = flags & 0x8; var width = 1 + (flags & 0x1); // 0x0 -> utf8, 0x1 -> dbcs var cRun = 0, cbExtRst; var z = {}; if(fRichSt) cRun = blob.read_shift(2); if(fExtSt) cbExtRst = blob.read_shift(4); var encoding = width == 2 ? 'dbcs-cont' : 'sbcs-cont'; var msg = cch === 0 ? "" : blob.read_shift(cch, encoding); if(fRichSt) blob.l += 4 * cRun; //TODO: parse this if(fExtSt) blob.l += cbExtRst; //TODO: parse this z.t = msg; if(!fRichSt) { z.raw = "<t>" + z.t + "</t>"; z.r = z.t; } current_codepage = cp; return z;}function write_XLUnicodeRichExtendedString(xlstr/*:: :XLString, opts*/) { var str = (xlstr.t||""), nfmts = 1;
var hdr = new_buf(3 + (nfmts > 1 ? 2 : 0)); hdr.write_shift(2, str.length); hdr.write_shift(1, (nfmts > 1 ? 0x08 : 0x00) | 0x01); if(nfmts > 1) hdr.write_shift(2, nfmts);
var otext = new_buf(2 * str.length); otext.write_shift(2 * str.length, str, 'utf16le');
var out = [hdr, otext];
return bconcat(out);}
/* 2.5.296 XLUnicodeStringNoCch */function parse_XLUnicodeStringNoCch(blob, cch, opts) { var retval; if(opts) { if(opts.biff >= 2 && opts.biff <= 5) return blob.read_shift(cch, 'cpstr'); if(opts.biff >= 12) return blob.read_shift(cch, 'dbcs-cont'); } var fHighByte = blob.read_shift(1); if(fHighByte===0) { retval = blob.read_shift(cch, 'sbcs-cont'); } else { retval = blob.read_shift(cch, 'dbcs-cont'); } return retval;}
/* 2.5.294 XLUnicodeString */function parse_XLUnicodeString(blob, length, opts) { var cch = blob.read_shift(opts && opts.biff == 2 ? 1 : 2); if(cch === 0) { blob.l++; return ""; } return parse_XLUnicodeStringNoCch(blob, cch, opts);}/* BIFF5 override */function parse_XLUnicodeString2(blob, length, opts) { if(opts.biff > 5) return parse_XLUnicodeString(blob, length, opts); var cch = blob.read_shift(1); if(cch === 0) { blob.l++; return ""; } return blob.read_shift(cch, (opts.biff <= 4 || !blob.lens ) ? 'cpstr' : 'sbcs-cont');}/* TODO: BIFF5 and lower, codepage awareness */function write_XLUnicodeString(str, opts, o) { if(!o) o = new_buf(3 + 2 * str.length); o.write_shift(2, str.length); o.write_shift(1, 1); o.write_shift(31, str, 'utf16le'); return o;}
/* [MS-XLS] 2.5.61 ControlInfo */function parse_ControlInfo(blob/*::, length, opts*/) { var flags = blob.read_shift(1); blob.l++; var accel = blob.read_shift(2); blob.l += 2; return [flags, accel];}
/* [MS-OSHARED] 2.3.7.6 URLMoniker TODO: flags */function parse_URLMoniker(blob/*::, length, opts*/) { var len = blob.read_shift(4), start = blob.l; var extra = false; if(len > 24) { /* look ahead */ blob.l += len - 24; if(blob.read_shift(16) === "795881f43b1d7f48af2c825dc4852763") extra = true; blob.l = start; } var url = blob.read_shift((extra?len-24:len)>>1, 'utf16le').replace(chr0,""); if(extra) blob.l += 24; return url;}
/* [MS-OSHARED] 2.3.7.8 FileMoniker TODO: all fields */function parse_FileMoniker(blob/*::, length*/) { var cAnti = blob.read_shift(2); var preamble = ""; while(cAnti-- > 0) preamble += "../"; var ansiPath = blob.read_shift(0, 'lpstr-ansi'); blob.l += 2; //var endServer = blob.read_shift(2); if(blob.read_shift(2) != 0xDEAD) throw new Error("Bad FileMoniker"); var sz = blob.read_shift(4); if(sz === 0) return preamble + ansiPath.replace(/\\/g,"/"); var bytes = blob.read_shift(4); if(blob.read_shift(2) != 3) throw new Error("Bad FileMoniker"); var unicodePath = blob.read_shift(bytes>>1, 'utf16le').replace(chr0,""); return preamble + unicodePath;}
/* [MS-OSHARED] 2.3.7.2 HyperlinkMoniker TODO: all the monikers */function parse_HyperlinkMoniker(blob, length) { var clsid = blob.read_shift(16); length -= 16; switch(clsid) { case "e0c9ea79f9bace118c8200aa004ba90b": return parse_URLMoniker(blob, length); case "0303000000000000c000000000000046": return parse_FileMoniker(blob, length); default: throw new Error("Unsupported Moniker " + clsid); }}
/* [MS-OSHARED] 2.3.7.9 HyperlinkString */function parse_HyperlinkString(blob/*::, length*/) { var len = blob.read_shift(4); var o = len > 0 ? blob.read_shift(len, 'utf16le').replace(chr0, "") : ""; return o;}function write_HyperlinkString(str/*:string*/, o) { if(!o) o = new_buf(6 + str.length * 2); o.write_shift(4, 1 + str.length); for(var i = 0; i < str.length; ++i) o.write_shift(2, str.charCodeAt(i)); o.write_shift(2, 0); return o;}
/* [MS-OSHARED] 2.3.7.1 Hyperlink Object */function parse_Hyperlink(blob, length)/*:Hyperlink*/ { var end = blob.l + length; var sVer = blob.read_shift(4); if(sVer !== 2) throw new Error("Unrecognized streamVersion: " + sVer); var flags = blob.read_shift(2); blob.l += 2; var displayName, targetFrameName, moniker, oleMoniker, Loc="", guid, fileTime; if(flags & 0x0010) displayName = parse_HyperlinkString(blob, end - blob.l); if(flags & 0x0080) targetFrameName = parse_HyperlinkString(blob, end - blob.l); if((flags & 0x0101) === 0x0101) moniker = parse_HyperlinkString(blob, end - blob.l); if((flags & 0x0101) === 0x0001) oleMoniker = parse_HyperlinkMoniker(blob, end - blob.l); if(flags & 0x0008) Loc = parse_HyperlinkString(blob, end - blob.l); if(flags & 0x0020) guid = blob.read_shift(16); if(flags & 0x0040) fileTime = parse_FILETIME(blob/*, 8*/); blob.l = end; var target = targetFrameName||moniker||oleMoniker||""; if(target && Loc) target+="#"+Loc; if(!target) target = "#" + Loc; if((flags & 0x0002) && target.charAt(0) == "/" && target.charAt(1) != "/") target = "file://" + target; var out = ({Target:target}/*:any*/); if(guid) out.guid = guid; if(fileTime) out.time = fileTime; if(displayName) out.Tooltip = displayName; return out;}function write_Hyperlink(hl) { var out = new_buf(512), i = 0; var Target = hl.Target; if(Target.slice(0,7) == "file://") Target = Target.slice(7); var hashidx = Target.indexOf("#"); var F = hashidx > -1 ? 0x1f : 0x17; switch(Target.charAt(0)) { case "#": F=0x1c; break; case ".": F&=~2; break; } out.write_shift(4,2); out.write_shift(4, F); var data = [8,6815827,6619237,4849780,83]; for(i = 0; i < data.length; ++i) out.write_shift(4, data[i]); if(F == 0x1C) { Target = Target.slice(1); write_HyperlinkString(Target, out); } else if(F & 0x02) { data = "e0 c9 ea 79 f9 ba ce 11 8c 82 00 aa 00 4b a9 0b".split(" "); for(i = 0; i < data.length; ++i) out.write_shift(1, parseInt(data[i], 16)); var Pretarget = hashidx > -1 ? Target.slice(0, hashidx) : Target; out.write_shift(4, 2*(Pretarget.length + 1)); for(i = 0; i < Pretarget.length; ++i) out.write_shift(2, Pretarget.charCodeAt(i)); out.write_shift(2, 0); if(F & 0x08) write_HyperlinkString(hashidx > -1 ? Target.slice(hashidx+1): "", out); } else { data = "03 03 00 00 00 00 00 00 c0 00 00 00 00 00 00 46".split(" "); for(i = 0; i < data.length; ++i) out.write_shift(1, parseInt(data[i], 16)); var P = 0; while(Target.slice(P*3,P*3+3)=="../"||Target.slice(P*3,P*3+3)=="..\\") ++P; out.write_shift(2, P); out.write_shift(4, Target.length - 3 * P + 1); for(i = 0; i < Target.length - 3 * P; ++i) out.write_shift(1, Target.charCodeAt(i + 3 * P) & 0xFF); out.write_shift(1, 0); out.write_shift(2, 0xFFFF); out.write_shift(2, 0xDEAD); for(i = 0; i < 6; ++i) out.write_shift(4, 0); } return out.slice(0, out.l);}
/* 2.5.178 LongRGBA */function parse_LongRGBA(blob/*::, length*/) { var r = blob.read_shift(1), g = blob.read_shift(1), b = blob.read_shift(1), a = blob.read_shift(1); return [r,g,b,a]; }
/* 2.5.177 LongRGB */function parse_LongRGB(blob, length) { var x = parse_LongRGBA(blob, length); x[3] = 0; return x; }
sheetjs
Version Info
2 years ago
