deno.land / x / sheetjs@v0.18.3 / misc / 18_esmcfb.js
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DO_NOT_EXPORT_CFB = true;/*::declare var Base64:any;declare var ReadShift:any;declare var CheckField:any;declare var prep_blob:any;declare var __readUInt32LE:any;declare var __readInt32LE:any;declare var __toBuffer:any;declare var __utf16le:any;declare var bconcat:any;declare var s2a:any;declare var chr0:any;declare var chr1:any;declare var has_buf:boolean;declare var new_buf:any;declare var new_raw_buf:any;declare var new_unsafe_buf:any;declare var Buffer_from:any;*//* cfb.js (C) 2013-present SheetJS -- http://sheetjs.com *//* vim: set ts=2: *//*jshint eqnull:true *//*exported CFB *//*global module, require:false, process:false, Buffer:false, Uint8Array:false, Uint16Array:false */
/*::declare var DO_NOT_EXPORT_CFB:?boolean;type SectorEntry = { name?:string; nodes?:Array<number>; data:RawBytes;};type SectorList = { [k:string|number]:SectorEntry; name:?string; fat_addrs:Array<number>; ssz:number;}type CFBFiles = {[n:string]:CFBEntry};*//* crc32.js (C) 2014-present SheetJS -- http://sheetjs.com *//* vim: set ts=2: *//*exported CRC32 */var CRC32;(function (factory) { /*jshint ignore:start */ /*eslint-disable */ factory(CRC32 = {}); /*eslint-enable */ /*jshint ignore:end */}(function(CRC32) {CRC32.version = '1.2.0';/* see perf/crc32table.js *//*global Int32Array */function signed_crc_table()/*:any*/ { var c = 0, table/*:Array<number>*/ = new Array(256);
for(var n =0; n != 256; ++n){ c = n; c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1)); c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1)); c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1)); c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1)); c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1)); c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1)); c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1)); c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1)); table[n] = c; }
return typeof Int32Array !== 'undefined' ? new Int32Array(table) : table;}
var T0 = signed_crc_table();function slice_by_16_tables(T) { var c = 0, v = 0, n = 0, table/*:Array<number>*/ = typeof Int32Array !== 'undefined' ? new Int32Array(4096) : new Array(4096) ;
for(n = 0; n != 256; ++n) table[n] = T[n]; for(n = 0; n != 256; ++n) { v = T[n]; for(c = 256 + n; c < 4096; c += 256) v = table[c] = (v >>> 8) ^ T[v & 0xFF]; } var out = []; for(n = 1; n != 16; ++n) out[n - 1] = typeof Int32Array !== 'undefined' ? table.subarray(n * 256, n * 256 + 256) : table.slice(n * 256, n * 256 + 256); return out;}var TT = slice_by_16_tables(T0);var T1 = TT[0], T2 = TT[1], T3 = TT[2], T4 = TT[3], T5 = TT[4];var T6 = TT[5], T7 = TT[6], T8 = TT[7], T9 = TT[8], Ta = TT[9];var Tb = TT[10], Tc = TT[11], Td = TT[12], Te = TT[13], Tf = TT[14];function crc32_bstr(bstr/*:string*/, seed/*:number*/)/*:number*/ { var C = seed/*:: ? 0 : 0 */ ^ -1; for(var i = 0, L = bstr.length; i < L;) C = (C>>>8) ^ T0[(C^bstr.charCodeAt(i++))&0xFF]; return ~C;}
function crc32_buf(B/*:Uint8Array|Array<number>*/, seed/*:number*/)/*:number*/ { var C = seed/*:: ? 0 : 0 */ ^ -1, L = B.length - 15, i = 0; for(; i < L;) C = Tf[B[i++] ^ (C & 255)] ^ Te[B[i++] ^ ((C >> 8) & 255)] ^ Td[B[i++] ^ ((C >> 16) & 255)] ^ Tc[B[i++] ^ (C >>> 24)] ^ Tb[B[i++]] ^ Ta[B[i++]] ^ T9[B[i++]] ^ T8[B[i++]] ^ T7[B[i++]] ^ T6[B[i++]] ^ T5[B[i++]] ^ T4[B[i++]] ^ T3[B[i++]] ^ T2[B[i++]] ^ T1[B[i++]] ^ T0[B[i++]]; L += 15; while(i < L) C = (C>>>8) ^ T0[(C^B[i++])&0xFF]; return ~C;}
function crc32_str(str/*:string*/, seed/*:number*/)/*:number*/ { var C = seed ^ -1; for(var i = 0, L = str.length, c = 0, d = 0; i < L;) { c = str.charCodeAt(i++); if(c < 0x80) { C = (C>>>8) ^ T0[(C^c)&0xFF]; } else if(c < 0x800) { C = (C>>>8) ^ T0[(C ^ (192|((c>>6)&31)))&0xFF]; C = (C>>>8) ^ T0[(C ^ (128|(c&63)))&0xFF]; } else if(c >= 0xD800 && c < 0xE000) { c = (c&1023)+64; d = str.charCodeAt(i++)&1023; C = (C>>>8) ^ T0[(C ^ (240|((c>>8)&7)))&0xFF]; C = (C>>>8) ^ T0[(C ^ (128|((c>>2)&63)))&0xFF]; C = (C>>>8) ^ T0[(C ^ (128|((d>>6)&15)|((c&3)<<4)))&0xFF]; C = (C>>>8) ^ T0[(C ^ (128|(d&63)))&0xFF]; } else { C = (C>>>8) ^ T0[(C ^ (224|((c>>12)&15)))&0xFF]; C = (C>>>8) ^ T0[(C ^ (128|((c>>6)&63)))&0xFF]; C = (C>>>8) ^ T0[(C ^ (128|(c&63)))&0xFF]; } } return ~C;}CRC32.table = T0;CRC32.bstr = crc32_bstr;CRC32.buf = crc32_buf;CRC32.str = crc32_str;}));/* [MS-CFB] v20171201 */var CFB = (function _CFB(){var exports/*:CFBModule*/ = /*::(*/{}/*:: :any)*/;exports.version = '1.2.1';/* [MS-CFB] 2.6.4 */function namecmp(l/*:string*/, r/*:string*/)/*:number*/ { var L = l.split("/"), R = r.split("/"); for(var i = 0, c = 0, Z = Math.min(L.length, R.length); i < Z; ++i) { if((c = L[i].length - R[i].length)) return c; if(L[i] != R[i]) return L[i] < R[i] ? -1 : 1; } return L.length - R.length;}function dirname(p/*:string*/)/*:string*/ { if(p.charAt(p.length - 1) == "/") return (p.slice(0,-1).indexOf("/") === -1) ? p : dirname(p.slice(0, -1)); var c = p.lastIndexOf("/"); return (c === -1) ? p : p.slice(0, c+1);}
function filename(p/*:string*/)/*:string*/ { if(p.charAt(p.length - 1) == "/") return filename(p.slice(0, -1)); var c = p.lastIndexOf("/"); return (c === -1) ? p : p.slice(c+1);}/* -------------------------------------------------------------------------- *//* DOS Date format: high|YYYYYYYm.mmmddddd.HHHHHMMM.MMMSSSSS|low add 1980 to stored year stored second should be doubled*/
/* write JS date to buf as a DOS date */function write_dos_date(buf/*:CFBlob*/, date/*:Date|string*/) { if(typeof date === "string") date = new Date(date); var hms/*:number*/ = date.getHours(); hms = hms << 6 | date.getMinutes(); hms = hms << 5 | (date.getSeconds()>>>1); buf.write_shift(2, hms); var ymd/*:number*/ = (date.getFullYear() - 1980); ymd = ymd << 4 | (date.getMonth()+1); ymd = ymd << 5 | date.getDate(); buf.write_shift(2, ymd);}
/* read four bytes from buf and interpret as a DOS date */function parse_dos_date(buf/*:CFBlob*/)/*:Date*/ { var hms = buf.read_shift(2) & 0xFFFF; var ymd = buf.read_shift(2) & 0xFFFF; var val = new Date(); var d = ymd & 0x1F; ymd >>>= 5; var m = ymd & 0x0F; ymd >>>= 4; val.setMilliseconds(0); val.setFullYear(ymd + 1980); val.setMonth(m-1); val.setDate(d); var S = hms & 0x1F; hms >>>= 5; var M = hms & 0x3F; hms >>>= 6; val.setHours(hms); val.setMinutes(M); val.setSeconds(S<<1); return val;}function parse_extra_field(blob/*:CFBlob*/)/*:any*/ { prep_blob(blob, 0); var o = /*::(*/{}/*:: :any)*/; var flags = 0; while(blob.l <= blob.length - 4) { var type = blob.read_shift(2); var sz = blob.read_shift(2), tgt = blob.l + sz; var p = {}; switch(type) { /* UNIX-style Timestamps */ case 0x5455: { flags = blob.read_shift(1); if(flags & 1) p.mtime = blob.read_shift(4); /* for some reason, CD flag corresponds to LFH */ if(sz > 5) { if(flags & 2) p.atime = blob.read_shift(4); if(flags & 4) p.ctime = blob.read_shift(4); } if(p.mtime) p.mt = new Date(p.mtime*1000); } break; } blob.l = tgt; o[type] = p; } return o;}var fs/*:: = require('fs'); */;function get_fs() { return fs || (fs = {}); }function parse(file/*:RawBytes*/, options/*:CFBReadOpts*/)/*:CFBContainer*/ {if(file[0] == 0x50 && file[1] == 0x4b) return parse_zip(file, options);if((file[0] | 0x20) == 0x6d && (file[1]|0x20) == 0x69) return parse_mad(file, options);if(file.length < 512) throw new Error("CFB file size " + file.length + " < 512");var mver = 3;var ssz = 512;var nmfs = 0; // number of mini FAT sectorsvar difat_sec_cnt = 0;var dir_start = 0;var minifat_start = 0;var difat_start = 0;
var fat_addrs/*:Array<number>*/ = []; // locations of FAT sectors
/* [MS-CFB] 2.2 Compound File Header */var blob/*:CFBlob*/ = /*::(*/file.slice(0,512)/*:: :any)*/;prep_blob(blob, 0);
/* major version */var mv = check_get_mver(blob);mver = mv[0];switch(mver) { case 3: ssz = 512; break; case 4: ssz = 4096; break; case 0: if(mv[1] == 0) return parse_zip(file, options); /* falls through */ default: throw new Error("Major Version: Expected 3 or 4 saw " + mver);}
/* reprocess header */if(ssz !== 512) { blob = /*::(*/file.slice(0,ssz)/*:: :any)*/; prep_blob(blob, 28 /* blob.l */); }/* Save header for final object */var header/*:RawBytes*/ = file.slice(0,ssz);
check_shifts(blob, mver);
// Number of Directory Sectorsvar dir_cnt/*:number*/ = blob.read_shift(4, 'i');if(mver === 3 && dir_cnt !== 0) throw new Error('# Directory Sectors: Expected 0 saw ' + dir_cnt);
// Number of FAT Sectorsblob.l += 4;
// First Directory Sector Locationdir_start = blob.read_shift(4, 'i');
// Transaction Signatureblob.l += 4;
// Mini Stream Cutoff Sizeblob.chk('00100000', 'Mini Stream Cutoff Size: ');
// First Mini FAT Sector Locationminifat_start = blob.read_shift(4, 'i');
// Number of Mini FAT Sectorsnmfs = blob.read_shift(4, 'i');
// First DIFAT sector locationdifat_start = blob.read_shift(4, 'i');
// Number of DIFAT Sectorsdifat_sec_cnt = blob.read_shift(4, 'i');
// Grab FAT Sector Locationsfor(var q = -1, j = 0; j < 109; ++j) { /* 109 = (512 - blob.l)>>>2; */ q = blob.read_shift(4, 'i'); if(q<0) break; fat_addrs[j] = q;}
/** Break the file up into sectors */var sectors/*:Array<RawBytes>*/ = sectorify(file, ssz);
sleuth_fat(difat_start, difat_sec_cnt, sectors, ssz, fat_addrs);
/** Chains */var sector_list/*:SectorList*/ = make_sector_list(sectors, dir_start, fat_addrs, ssz);
sector_list[dir_start].name = "!Directory";if(nmfs > 0 && minifat_start !== ENDOFCHAIN) sector_list[minifat_start].name = "!MiniFAT";sector_list[fat_addrs[0]].name = "!FAT";sector_list.fat_addrs = fat_addrs;sector_list.ssz = ssz;
/* [MS-CFB] 2.6.1 Compound File Directory Entry */var files/*:CFBFiles*/ = {}, Paths/*:Array<string>*/ = [], FileIndex/*:CFBFileIndex*/ = [], FullPaths/*:Array<string>*/ = [];read_directory(dir_start, sector_list, sectors, Paths, nmfs, files, FileIndex, minifat_start);
build_full_paths(FileIndex, FullPaths, Paths);Paths.shift();
var o = { FileIndex: FileIndex, FullPaths: FullPaths};
// $FlowIgnoreif(options && options.raw) o.raw = {header: header, sectors: sectors};return o;} // parse
/* [MS-CFB] 2.2 Compound File Header -- read up to major version */function check_get_mver(blob/*:CFBlob*/)/*:[number, number]*/ { if(blob[blob.l] == 0x50 && blob[blob.l + 1] == 0x4b) return [0, 0]; // header signature 8 blob.chk(HEADER_SIGNATURE, 'Header Signature: ');
// clsid 16 //blob.chk(HEADER_CLSID, 'CLSID: '); blob.l += 16;
// minor version 2 var mver/*:number*/ = blob.read_shift(2, 'u');
return [blob.read_shift(2,'u'), mver];}function check_shifts(blob/*:CFBlob*/, mver/*:number*/)/*:void*/ { var shift = 0x09;
// Byte Order //blob.chk('feff', 'Byte Order: '); // note: some writers put 0xffff blob.l += 2;
// Sector Shift switch((shift = blob.read_shift(2))) { case 0x09: if(mver != 3) throw new Error('Sector Shift: Expected 9 saw ' + shift); break; case 0x0c: if(mver != 4) throw new Error('Sector Shift: Expected 12 saw ' + shift); break; default: throw new Error('Sector Shift: Expected 9 or 12 saw ' + shift); }
// Mini Sector Shift blob.chk('0600', 'Mini Sector Shift: ');
// Reserved blob.chk('000000000000', 'Reserved: ');}
/** Break the file up into sectors */function sectorify(file/*:RawBytes*/, ssz/*:number*/)/*:Array<RawBytes>*/ { var nsectors = Math.ceil(file.length/ssz)-1; var sectors/*:Array<RawBytes>*/ = []; for(var i=1; i < nsectors; ++i) sectors[i-1] = file.slice(i*ssz,(i+1)*ssz); sectors[nsectors-1] = file.slice(nsectors*ssz); return sectors;}
/* [MS-CFB] 2.6.4 Red-Black Tree */function build_full_paths(FI/*:CFBFileIndex*/, FP/*:Array<string>*/, Paths/*:Array<string>*/)/*:void*/ { var i = 0, L = 0, R = 0, C = 0, j = 0, pl = Paths.length; var dad/*:Array<number>*/ = [], q/*:Array<number>*/ = [];
for(; i < pl; ++i) { dad[i]=q[i]=i; FP[i]=Paths[i]; }
for(; j < q.length; ++j) { i = q[j]; L = FI[i].L; R = FI[i].R; C = FI[i].C; if(dad[i] === i) { if(L !== -1 /*NOSTREAM*/ && dad[L] !== L) dad[i] = dad[L]; if(R !== -1 && dad[R] !== R) dad[i] = dad[R]; } if(C !== -1 /*NOSTREAM*/) dad[C] = i; if(L !== -1 && i != dad[i]) { dad[L] = dad[i]; if(q.lastIndexOf(L) < j) q.push(L); } if(R !== -1 && i != dad[i]) { dad[R] = dad[i]; if(q.lastIndexOf(R) < j) q.push(R); } } for(i=1; i < pl; ++i) if(dad[i] === i) { if(R !== -1 /*NOSTREAM*/ && dad[R] !== R) dad[i] = dad[R]; else if(L !== -1 && dad[L] !== L) dad[i] = dad[L]; }
for(i=1; i < pl; ++i) { if(FI[i].type === 0 /* unknown */) continue; j = i; if(j != dad[j]) do { j = dad[j]; FP[i] = FP[j] + "/" + FP[i]; } while (j !== 0 && -1 !== dad[j] && j != dad[j]); dad[i] = -1; }
FP[0] += "/"; for(i=1; i < pl; ++i) { if(FI[i].type !== 2 /* stream */) FP[i] += "/"; }}
function get_mfat_entry(entry/*:CFBEntry*/, payload/*:RawBytes*/, mini/*:?RawBytes*/)/*:CFBlob*/ { var start = entry.start, size = entry.size; //return (payload.slice(start*MSSZ, start*MSSZ + size)/*:any*/); var o = []; var idx = start; while(mini && size > 0 && idx >= 0) { o.push(payload.slice(idx * MSSZ, idx * MSSZ + MSSZ)); size -= MSSZ; idx = __readInt32LE(mini, idx * 4); } if(o.length === 0) return (new_buf(0)/*:any*/); return (bconcat(o).slice(0, entry.size)/*:any*/);}
/** Chase down the rest of the DIFAT chain to build a comprehensive list DIFAT chains by storing the next sector number as the last 32 bits */function sleuth_fat(idx/*:number*/, cnt/*:number*/, sectors/*:Array<RawBytes>*/, ssz/*:number*/, fat_addrs)/*:void*/ { var q/*:number*/ = ENDOFCHAIN; if(idx === ENDOFCHAIN) { if(cnt !== 0) throw new Error("DIFAT chain shorter than expected"); } else if(idx !== -1 /*FREESECT*/) { var sector = sectors[idx], m = (ssz>>>2)-1; if(!sector) return; for(var i = 0; i < m; ++i) { if((q = __readInt32LE(sector,i*4)) === ENDOFCHAIN) break; fat_addrs.push(q); } sleuth_fat(__readInt32LE(sector,ssz-4),cnt - 1, sectors, ssz, fat_addrs); }}
/** Follow the linked list of sectors for a given starting point */function get_sector_list(sectors/*:Array<RawBytes>*/, start/*:number*/, fat_addrs/*:Array<number>*/, ssz/*:number*/, chkd/*:?Array<boolean>*/)/*:SectorEntry*/ { var buf/*:Array<number>*/ = [], buf_chain/*:Array<any>*/ = []; if(!chkd) chkd = []; var modulus = ssz - 1, j = 0, jj = 0; for(j=start; j>=0;) { chkd[j] = true; buf[buf.length] = j; buf_chain.push(sectors[j]); var addr = fat_addrs[Math.floor(j*4/ssz)]; jj = ((j*4) & modulus); if(ssz < 4 + jj) throw new Error("FAT boundary crossed: " + j + " 4 "+ssz); if(!sectors[addr]) break; j = __readInt32LE(sectors[addr], jj); } return {nodes: buf, data:__toBuffer([buf_chain])};}
/** Chase down the sector linked lists */function make_sector_list(sectors/*:Array<RawBytes>*/, dir_start/*:number*/, fat_addrs/*:Array<number>*/, ssz/*:number*/)/*:SectorList*/ { var sl = sectors.length, sector_list/*:SectorList*/ = ([]/*:any*/); var chkd/*:Array<boolean>*/ = [], buf/*:Array<number>*/ = [], buf_chain/*:Array<RawBytes>*/ = []; var modulus = ssz - 1, i=0, j=0, k=0, jj=0; for(i=0; i < sl; ++i) { buf = ([]/*:Array<number>*/); k = (i + dir_start); if(k >= sl) k-=sl; if(chkd[k]) continue; buf_chain = []; var seen = []; for(j=k; j>=0;) { seen[j] = true; chkd[j] = true; buf[buf.length] = j; buf_chain.push(sectors[j]); var addr/*:number*/ = fat_addrs[Math.floor(j*4/ssz)]; jj = ((j*4) & modulus); if(ssz < 4 + jj) throw new Error("FAT boundary crossed: " + j + " 4 "+ssz); if(!sectors[addr]) break; j = __readInt32LE(sectors[addr], jj); if(seen[j]) break; } sector_list[k] = ({nodes: buf, data:__toBuffer([buf_chain])}/*:SectorEntry*/); } return sector_list;}
/* [MS-CFB] 2.6.1 Compound File Directory Entry */function read_directory(dir_start/*:number*/, sector_list/*:SectorList*/, sectors/*:Array<RawBytes>*/, Paths/*:Array<string>*/, nmfs, files, FileIndex, mini) { var minifat_store = 0, pl = (Paths.length?2:0); var sector = sector_list[dir_start].data; var i = 0, namelen = 0, name; for(; i < sector.length; i+= 128) { var blob/*:CFBlob*/ = /*::(*/sector.slice(i, i+128)/*:: :any)*/; prep_blob(blob, 64); namelen = blob.read_shift(2); name = __utf16le(blob,0,namelen-pl); Paths.push(name); var o/*:CFBEntry*/ = ({ name: name, type: blob.read_shift(1), color: blob.read_shift(1), L: blob.read_shift(4, 'i'), R: blob.read_shift(4, 'i'), C: blob.read_shift(4, 'i'), clsid: blob.read_shift(16), state: blob.read_shift(4, 'i'), start: 0, size: 0 }); var ctime/*:number*/ = blob.read_shift(2) + blob.read_shift(2) + blob.read_shift(2) + blob.read_shift(2); if(ctime !== 0) o.ct = read_date(blob, blob.l-8); var mtime/*:number*/ = blob.read_shift(2) + blob.read_shift(2) + blob.read_shift(2) + blob.read_shift(2); if(mtime !== 0) o.mt = read_date(blob, blob.l-8); o.start = blob.read_shift(4, 'i'); o.size = blob.read_shift(4, 'i'); if(o.size < 0 && o.start < 0) { o.size = o.type = 0; o.start = ENDOFCHAIN; o.name = ""; } if(o.type === 5) { /* root */ minifat_store = o.start; if(nmfs > 0 && minifat_store !== ENDOFCHAIN) sector_list[minifat_store].name = "!StreamData"; /*minifat_size = o.size;*/ } else if(o.size >= 4096 /* MSCSZ */) { o.storage = 'fat'; if(sector_list[o.start] === undefined) sector_list[o.start] = get_sector_list(sectors, o.start, sector_list.fat_addrs, sector_list.ssz); sector_list[o.start].name = o.name; o.content = (sector_list[o.start].data.slice(0,o.size)/*:any*/); } else { o.storage = 'minifat'; if(o.size < 0) o.size = 0; else if(minifat_store !== ENDOFCHAIN && o.start !== ENDOFCHAIN && sector_list[minifat_store]) { o.content = get_mfat_entry(o, sector_list[minifat_store].data, (sector_list[mini]||{}).data); } } if(o.content) prep_blob(o.content, 0); files[name] = o; FileIndex.push(o); }}
function read_date(blob/*:RawBytes|CFBlob*/, offset/*:number*/)/*:Date*/ { return new Date(( ( (__readUInt32LE(blob,offset+4)/1e7)*Math.pow(2,32)+__readUInt32LE(blob,offset)/1e7 ) - 11644473600)*1000);}
function read_file(filename/*:string*/, options/*:CFBReadOpts*/) { get_fs(); return parse(fs.readFileSync(filename), options);}
function read(blob/*:RawBytes|string*/, options/*:CFBReadOpts*/) { var type = options && options.type; if(!type) { if(has_buf && Buffer.isBuffer(blob)) type = "buffer"; } switch(type || "base64") { case "file": /*:: if(typeof blob !== 'string') throw "Must pass a filename when type='file'"; */return read_file(blob, options); case "base64": /*:: if(typeof blob !== 'string') throw "Must pass a base64-encoded binary string when type='file'"; */return parse(s2a(Base64.decode(blob)), options); case "binary": /*:: if(typeof blob !== 'string') throw "Must pass a binary string when type='file'"; */return parse(s2a(blob), options); } return parse(/*::typeof blob == 'string' ? new Buffer(blob, 'utf-8') : */blob, options);}
function init_cfb(cfb/*:CFBContainer*/, opts/*:?any*/)/*:void*/ { var o = opts || {}, root = o.root || "Root Entry"; if(!cfb.FullPaths) cfb.FullPaths = []; if(!cfb.FileIndex) cfb.FileIndex = []; if(cfb.FullPaths.length !== cfb.FileIndex.length) throw new Error("inconsistent CFB structure"); if(cfb.FullPaths.length === 0) { cfb.FullPaths[0] = root + "/"; cfb.FileIndex[0] = ({ name: root, type: 5 }/*:any*/); } if(o.CLSID) cfb.FileIndex[0].clsid = o.CLSID; seed_cfb(cfb);}function seed_cfb(cfb/*:CFBContainer*/)/*:void*/ { var nm = "\u0001Sh33tJ5"; if(CFB.find(cfb, "/" + nm)) return; var p = new_buf(4); p[0] = 55; p[1] = p[3] = 50; p[2] = 54; cfb.FileIndex.push(({ name: nm, type: 2, content:p, size:4, L:69, R:69, C:69 }/*:any*/)); cfb.FullPaths.push(cfb.FullPaths[0] + nm); rebuild_cfb(cfb);}function rebuild_cfb(cfb/*:CFBContainer*/, f/*:?boolean*/)/*:void*/ { init_cfb(cfb); var gc = false, s = false; for(var i = cfb.FullPaths.length - 1; i >= 0; --i) { var _file = cfb.FileIndex[i]; switch(_file.type) { case 0: if(s) gc = true; else { cfb.FileIndex.pop(); cfb.FullPaths.pop(); } break; case 1: case 2: case 5: s = true; if(isNaN(_file.R * _file.L * _file.C)) gc = true; if(_file.R > -1 && _file.L > -1 && _file.R == _file.L) gc = true; break; default: gc = true; break; } } if(!gc && !f) return;
var now = new Date(1987, 1, 19), j = 0; // Track which names exist var fullPaths = Object.create ? Object.create(null) : {}; var data/*:Array<[string, CFBEntry]>*/ = []; for(i = 0; i < cfb.FullPaths.length; ++i) { fullPaths[cfb.FullPaths[i]] = true; if(cfb.FileIndex[i].type === 0) continue; data.push([cfb.FullPaths[i], cfb.FileIndex[i]]); } for(i = 0; i < data.length; ++i) { var dad = dirname(data[i][0]); s = fullPaths[dad]; if(!s) { data.push([dad, ({ name: filename(dad).replace("/",""), type: 1, clsid: HEADER_CLSID, ct: now, mt: now, content: null }/*:any*/)]); // Add name to set fullPaths[dad] = true; } }
data.sort(function(x,y) { return namecmp(x[0], y[0]); }); cfb.FullPaths = []; cfb.FileIndex = []; for(i = 0; i < data.length; ++i) { cfb.FullPaths[i] = data[i][0]; cfb.FileIndex[i] = data[i][1]; } for(i = 0; i < data.length; ++i) { var elt = cfb.FileIndex[i]; var nm = cfb.FullPaths[i];
elt.name = filename(nm).replace("/",""); elt.L = elt.R = elt.C = -(elt.color = 1); elt.size = elt.content ? elt.content.length : 0; elt.start = 0; elt.clsid = (elt.clsid || HEADER_CLSID); if(i === 0) { elt.C = data.length > 1 ? 1 : -1; elt.size = 0; elt.type = 5; } else if(nm.slice(-1) == "/") { for(j=i+1;j < data.length; ++j) if(dirname(cfb.FullPaths[j])==nm) break; elt.C = j >= data.length ? -1 : j; for(j=i+1;j < data.length; ++j) if(dirname(cfb.FullPaths[j])==dirname(nm)) break; elt.R = j >= data.length ? -1 : j; elt.type = 1; } else { if(dirname(cfb.FullPaths[i+1]||"") == dirname(nm)) elt.R = i + 1; elt.type = 2; } }
}
function _write(cfb/*:CFBContainer*/, options/*:CFBWriteOpts*/)/*:RawBytes|string*/ { var _opts = options || {}; /* MAD is order-sensitive, skip rebuild and sort */ if(_opts.fileType == 'mad') return write_mad(cfb, _opts); rebuild_cfb(cfb); switch(_opts.fileType) { case 'zip': return write_zip(cfb, _opts); //case 'mad': return write_mad(cfb, _opts); } var L = (function(cfb/*:CFBContainer*/)/*:Array<number>*/{ var mini_size = 0, fat_size = 0; for(var i = 0; i < cfb.FileIndex.length; ++i) { var file = cfb.FileIndex[i]; if(!file.content) continue; /*:: if(file.content == null) throw new Error("unreachable"); */ var flen = file.content.length; if(flen > 0){ if(flen < 0x1000) mini_size += (flen + 0x3F) >> 6; else fat_size += (flen + 0x01FF) >> 9; } } var dir_cnt = (cfb.FullPaths.length +3) >> 2; var mini_cnt = (mini_size + 7) >> 3; var mfat_cnt = (mini_size + 0x7F) >> 7; var fat_base = mini_cnt + fat_size + dir_cnt + mfat_cnt; var fat_cnt = (fat_base + 0x7F) >> 7; var difat_cnt = fat_cnt <= 109 ? 0 : Math.ceil((fat_cnt-109)/0x7F); while(((fat_base + fat_cnt + difat_cnt + 0x7F) >> 7) > fat_cnt) difat_cnt = ++fat_cnt <= 109 ? 0 : Math.ceil((fat_cnt-109)/0x7F); var L = [1, difat_cnt, fat_cnt, mfat_cnt, dir_cnt, fat_size, mini_size, 0]; cfb.FileIndex[0].size = mini_size << 6; L[7] = (cfb.FileIndex[0].start=L[0]+L[1]+L[2]+L[3]+L[4]+L[5])+((L[6]+7) >> 3); return L; })(cfb); var o = new_buf(L[7] << 9); var i = 0, T = 0; { for(i = 0; i < 8; ++i) o.write_shift(1, HEADER_SIG[i]); for(i = 0; i < 8; ++i) o.write_shift(2, 0); o.write_shift(2, 0x003E); o.write_shift(2, 0x0003); o.write_shift(2, 0xFFFE); o.write_shift(2, 0x0009); o.write_shift(2, 0x0006); for(i = 0; i < 3; ++i) o.write_shift(2, 0); o.write_shift(4, 0); o.write_shift(4, L[2]); o.write_shift(4, L[0] + L[1] + L[2] + L[3] - 1); o.write_shift(4, 0); o.write_shift(4, 1<<12); o.write_shift(4, L[3] ? L[0] + L[1] + L[2] - 1: ENDOFCHAIN); o.write_shift(4, L[3]); o.write_shift(-4, L[1] ? L[0] - 1: ENDOFCHAIN); o.write_shift(4, L[1]); for(i = 0; i < 109; ++i) o.write_shift(-4, i < L[2] ? L[1] + i : -1); } if(L[1]) { for(T = 0; T < L[1]; ++T) { for(; i < 236 + T * 127; ++i) o.write_shift(-4, i < L[2] ? L[1] + i : -1); o.write_shift(-4, T === L[1] - 1 ? ENDOFCHAIN : T + 1); } } var chainit = function(w/*:number*/)/*:void*/ { for(T += w; i<T-1; ++i) o.write_shift(-4, i+1); if(w) { ++i; o.write_shift(-4, ENDOFCHAIN); } }; T = i = 0; for(T+=L[1]; i<T; ++i) o.write_shift(-4, consts.DIFSECT); for(T+=L[2]; i<T; ++i) o.write_shift(-4, consts.FATSECT); chainit(L[3]); chainit(L[4]); var j/*:number*/ = 0, flen/*:number*/ = 0; var file/*:CFBEntry*/ = cfb.FileIndex[0]; for(; j < cfb.FileIndex.length; ++j) { file = cfb.FileIndex[j]; if(!file.content) continue; /*:: if(file.content == null) throw new Error("unreachable"); */ flen = file.content.length; if(flen < 0x1000) continue; file.start = T; chainit((flen + 0x01FF) >> 9); } chainit((L[6] + 7) >> 3); while(o.l & 0x1FF) o.write_shift(-4, consts.ENDOFCHAIN); T = i = 0; for(j = 0; j < cfb.FileIndex.length; ++j) { file = cfb.FileIndex[j]; if(!file.content) continue; /*:: if(file.content == null) throw new Error("unreachable"); */ flen = file.content.length; if(!flen || flen >= 0x1000) continue; file.start = T; chainit((flen + 0x3F) >> 6); } while(o.l & 0x1FF) o.write_shift(-4, consts.ENDOFCHAIN); for(i = 0; i < L[4]<<2; ++i) { var nm = cfb.FullPaths[i]; if(!nm || nm.length === 0) { for(j = 0; j < 17; ++j) o.write_shift(4, 0); for(j = 0; j < 3; ++j) o.write_shift(4, -1); for(j = 0; j < 12; ++j) o.write_shift(4, 0); continue; } file = cfb.FileIndex[i]; if(i === 0) file.start = file.size ? file.start - 1 : ENDOFCHAIN; var _nm/*:string*/ = (i === 0 && _opts.root) || file.name; flen = 2*(_nm.length+1); o.write_shift(64, _nm, "utf16le"); o.write_shift(2, flen); o.write_shift(1, file.type); o.write_shift(1, file.color); o.write_shift(-4, file.L); o.write_shift(-4, file.R); o.write_shift(-4, file.C); if(!file.clsid) for(j = 0; j < 4; ++j) o.write_shift(4, 0); else o.write_shift(16, file.clsid, "hex"); o.write_shift(4, file.state || 0); o.write_shift(4, 0); o.write_shift(4, 0); o.write_shift(4, 0); o.write_shift(4, 0); o.write_shift(4, file.start); o.write_shift(4, file.size); o.write_shift(4, 0); } for(i = 1; i < cfb.FileIndex.length; ++i) { file = cfb.FileIndex[i]; /*:: if(!file.content) throw new Error("unreachable"); */ if(file.size >= 0x1000) { o.l = (file.start+1) << 9; if (has_buf && Buffer.isBuffer(file.content)) { file.content.copy(o, o.l, 0, file.size); // o is a 0-filled Buffer so just set next offset o.l += (file.size + 511) & -512; } else { for(j = 0; j < file.size; ++j) o.write_shift(1, file.content[j]); for(; j & 0x1FF; ++j) o.write_shift(1, 0); } } } for(i = 1; i < cfb.FileIndex.length; ++i) { file = cfb.FileIndex[i]; /*:: if(!file.content) throw new Error("unreachable"); */ if(file.size > 0 && file.size < 0x1000) { if (has_buf && Buffer.isBuffer(file.content)) { file.content.copy(o, o.l, 0, file.size); // o is a 0-filled Buffer so just set next offset o.l += (file.size + 63) & -64; } else { for(j = 0; j < file.size; ++j) o.write_shift(1, file.content[j]); for(; j & 0x3F; ++j) o.write_shift(1, 0); } } } if (has_buf) { o.l = o.length; } else { // When using Buffer, already 0-filled while(o.l < o.length) o.write_shift(1, 0); } return o;}/* [MS-CFB] 2.6.4 (Unicode 3.0.1 case conversion) */function find(cfb/*:CFBContainer*/, path/*:string*/)/*:?CFBEntry*/ { var UCFullPaths/*:Array<string>*/ = cfb.FullPaths.map(function(x) { return x.toUpperCase(); }); var UCPaths/*:Array<string>*/ = UCFullPaths.map(function(x) { var y = x.split("/"); return y[y.length - (x.slice(-1) == "/" ? 2 : 1)]; }); var k/*:boolean*/ = false; if(path.charCodeAt(0) === 47 /* "/" */) { k = true; path = UCFullPaths[0].slice(0, -1) + path; } else k = path.indexOf("/") !== -1; var UCPath/*:string*/ = path.toUpperCase(); var w/*:number*/ = k === true ? UCFullPaths.indexOf(UCPath) : UCPaths.indexOf(UCPath); if(w !== -1) return cfb.FileIndex[w];
var m = !UCPath.match(chr1); UCPath = UCPath.replace(chr0,''); if(m) UCPath = UCPath.replace(chr1,'!'); for(w = 0; w < UCFullPaths.length; ++w) { if((m ? UCFullPaths[w].replace(chr1,'!') : UCFullPaths[w]).replace(chr0,'') == UCPath) return cfb.FileIndex[w]; if((m ? UCPaths[w].replace(chr1,'!') : UCPaths[w]).replace(chr0,'') == UCPath) return cfb.FileIndex[w]; } return null;}/** CFB Constants */var MSSZ = 64; /* Mini Sector Size = 1<<6 *///var MSCSZ = 4096; /* Mini Stream Cutoff Size *//* 2.1 Compound File Sector Numbers and Types */var ENDOFCHAIN = -2;/* 2.2 Compound File Header */var HEADER_SIGNATURE = 'd0cf11e0a1b11ae1';var HEADER_SIG = [0xD0, 0xCF, 0x11, 0xE0, 0xA1, 0xB1, 0x1A, 0xE1];var HEADER_CLSID = '00000000000000000000000000000000';var consts = { /* 2.1 Compund File Sector Numbers and Types */ MAXREGSECT: -6, DIFSECT: -4, FATSECT: -3, ENDOFCHAIN: ENDOFCHAIN, FREESECT: -1, /* 2.2 Compound File Header */ HEADER_SIGNATURE: HEADER_SIGNATURE, HEADER_MINOR_VERSION: '3e00', MAXREGSID: -6, NOSTREAM: -1, HEADER_CLSID: HEADER_CLSID, /* 2.6.1 Compound File Directory Entry */ EntryTypes: ['unknown','storage','stream','lockbytes','property','root']};
function write_file(cfb/*:CFBContainer*/, filename/*:string*/, options/*:CFBWriteOpts*/)/*:void*/ { get_fs(); var o = _write(cfb, options); /*:: if(typeof Buffer == 'undefined' || !Buffer.isBuffer(o) || !(o instanceof Buffer)) throw new Error("unreachable"); */ fs.writeFileSync(filename, o);}
function a2s(o/*:RawBytes*/)/*:string*/ { var out = new Array(o.length); for(var i = 0; i < o.length; ++i) out[i] = String.fromCharCode(o[i]); return out.join("");}
function write(cfb/*:CFBContainer*/, options/*:CFBWriteOpts*/)/*:RawBytes|string*/ { var o = _write(cfb, options); switch(options && options.type || "buffer") { case "file": get_fs(); fs.writeFileSync(options.filename, (o/*:any*/)); return o; case "binary": return typeof o == "string" ? o : a2s(o); case "base64": return Base64.encode(typeof o == "string" ? o : a2s(o)); case "buffer": if(has_buf) return Buffer.isBuffer(o) ? o : Buffer_from(o); /* falls through */ case "array": return typeof o == "string" ? s2a(o) : o; } return o;}/* node < 8.1 zlib does not expose bytesRead, so default to pure JS */var _zlib;function use_zlib(zlib) { try { var InflateRaw = zlib.InflateRaw; var InflRaw = new InflateRaw(); InflRaw._processChunk(new Uint8Array([3, 0]), InflRaw._finishFlushFlag); if(InflRaw.bytesRead) _zlib = zlib; else throw new Error("zlib does not expose bytesRead");} catch(e) {console.error("cannot use native zlib: " + (e.message || e)); } }
function _inflateRawSync(payload, usz) { if(!_zlib) return _inflate(payload, usz); var InflateRaw = _zlib.InflateRaw; var InflRaw = new InflateRaw(); var out = InflRaw._processChunk(payload.slice(payload.l), InflRaw._finishFlushFlag); payload.l += InflRaw.bytesRead; return out;}
function _deflateRawSync(payload) { return _zlib ? _zlib.deflateRawSync(payload) : _deflate(payload);}var CLEN_ORDER = [ 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15 ];
/* LEN_ID = [ 257, 258, 259, 260, 261, 262, 263, 264, 265, 266, 267, 268, 269, 270, 271, 272, 273, 274, 275, 276, 277, 278, 279, 280, 281, 282, 283, 284, 285 ]; */var LEN_LN = [ 3, 4, 5, 6, 7, 8, 9, 10, 11, 13 , 15, 17, 19, 23, 27, 31, 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258 ];
/* DST_ID = [ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29 ]; */var DST_LN = [ 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577 ];
function bit_swap_8(n) { var t = (((((n<<1)|(n<<11)) & 0x22110) | (((n<<5)|(n<<15)) & 0x88440))); return ((t>>16) | (t>>8) |t)&0xFF; }
var use_typed_arrays = typeof Uint8Array !== 'undefined';
var bitswap8 = use_typed_arrays ? new Uint8Array(1<<8) : [];for(var q = 0; q < (1<<8); ++q) bitswap8[q] = bit_swap_8(q);
function bit_swap_n(n, b) { var rev = bitswap8[n & 0xFF]; if(b <= 8) return rev >>> (8-b); rev = (rev << 8) | bitswap8[(n>>8)&0xFF]; if(b <= 16) return rev >>> (16-b); rev = (rev << 8) | bitswap8[(n>>16)&0xFF]; return rev >>> (24-b);}
/* helpers for unaligned bit reads */function read_bits_2(buf, bl) { var w = (bl&7), h = (bl>>>3); return ((buf[h]|(w <= 6 ? 0 : buf[h+1]<<8))>>>w)& 0x03; }function read_bits_3(buf, bl) { var w = (bl&7), h = (bl>>>3); return ((buf[h]|(w <= 5 ? 0 : buf[h+1]<<8))>>>w)& 0x07; }function read_bits_4(buf, bl) { var w = (bl&7), h = (bl>>>3); return ((buf[h]|(w <= 4 ? 0 : buf[h+1]<<8))>>>w)& 0x0F; }function read_bits_5(buf, bl) { var w = (bl&7), h = (bl>>>3); return ((buf[h]|(w <= 3 ? 0 : buf[h+1]<<8))>>>w)& 0x1F; }function read_bits_7(buf, bl) { var w = (bl&7), h = (bl>>>3); return ((buf[h]|(w <= 1 ? 0 : buf[h+1]<<8))>>>w)& 0x7F; }
/* works up to n = 3 * 8 + 1 = 25 */function read_bits_n(buf, bl, n) { var w = (bl&7), h = (bl>>>3), f = ((1<<n)-1); var v = buf[h] >>> w; if(n < 8 - w) return v & f; v |= buf[h+1]<<(8-w); if(n < 16 - w) return v & f; v |= buf[h+2]<<(16-w); if(n < 24 - w) return v & f; v |= buf[h+3]<<(24-w); return v & f;}
/* helpers for unaligned bit writes */function write_bits_3(buf, bl, v) { var w = bl & 7, h = bl >>> 3; if(w <= 5) buf[h] |= (v & 7) << w; else { buf[h] |= (v << w) & 0xFF; buf[h+1] = (v&7) >> (8-w); } return bl + 3;}
function write_bits_1(buf, bl, v) { var w = bl & 7, h = bl >>> 3; v = (v&1) << w; buf[h] |= v; return bl + 1;}function write_bits_8(buf, bl, v) { var w = bl & 7, h = bl >>> 3; v <<= w; buf[h] |= v & 0xFF; v >>>= 8; buf[h+1] = v; return bl + 8;}function write_bits_16(buf, bl, v) { var w = bl & 7, h = bl >>> 3; v <<= w; buf[h] |= v & 0xFF; v >>>= 8; buf[h+1] = v & 0xFF; buf[h+2] = v >>> 8; return bl + 16;}
/* until ArrayBuffer#realloc is a thing, fake a realloc */function realloc(b, sz/*:number*/) { var L = b.length, M = 2*L > sz ? 2*L : sz + 5, i = 0; if(L >= sz) return b; if(has_buf) { var o = new_unsafe_buf(M); // $FlowIgnore if(b.copy) b.copy(o); else for(; i < b.length; ++i) o[i] = b[i]; return o; } else if(use_typed_arrays) { var a = new Uint8Array(M); if(a.set) a.set(b); else for(; i < L; ++i) a[i] = b[i]; return a; } b.length = M; return b;}
/* zero-filled arrays for older browsers */function zero_fill_array(n) { var o = new Array(n); for(var i = 0; i < n; ++i) o[i] = 0; return o;}
/* build tree (used for literals and lengths) */function build_tree(clens, cmap, MAX/*:number*/)/*:number*/ { var maxlen = 1, w = 0, i = 0, j = 0, ccode = 0, L = clens.length;
var bl_count = use_typed_arrays ? new Uint16Array(32) : zero_fill_array(32); for(i = 0; i < 32; ++i) bl_count[i] = 0;
for(i = L; i < MAX; ++i) clens[i] = 0; L = clens.length;
var ctree = use_typed_arrays ? new Uint16Array(L) : zero_fill_array(L); // []
/* build code tree */ for(i = 0; i < L; ++i) { bl_count[(w = clens[i])]++; if(maxlen < w) maxlen = w; ctree[i] = 0; } bl_count[0] = 0; for(i = 1; i <= maxlen; ++i) bl_count[i+16] = (ccode = (ccode + bl_count[i-1])<<1); for(i = 0; i < L; ++i) { ccode = clens[i]; if(ccode != 0) ctree[i] = bl_count[ccode+16]++; }
/* cmap[maxlen + 4 bits] = (off&15) + (lit<<4) reverse mapping */ var cleni = 0; for(i = 0; i < L; ++i) { cleni = clens[i]; if(cleni != 0) { ccode = bit_swap_n(ctree[i], maxlen)>>(maxlen-cleni); for(j = (1<<(maxlen + 4 - cleni)) - 1; j>=0; --j) cmap[ccode|(j<<cleni)] = (cleni&15) | (i<<4); } } return maxlen;}
/* Fixed Huffman */var fix_lmap = use_typed_arrays ? new Uint16Array(512) : zero_fill_array(512);var fix_dmap = use_typed_arrays ? new Uint16Array(32) : zero_fill_array(32);if(!use_typed_arrays) { for(var i = 0; i < 512; ++i) fix_lmap[i] = 0; for(i = 0; i < 32; ++i) fix_dmap[i] = 0;}(function() { var dlens/*:Array<number>*/ = []; var i = 0; for(;i<32; i++) dlens.push(5); build_tree(dlens, fix_dmap, 32);
var clens/*:Array<number>*/ = []; i = 0; for(; i<=143; i++) clens.push(8); for(; i<=255; i++) clens.push(9); for(; i<=279; i++) clens.push(7); for(; i<=287; i++) clens.push(8); build_tree(clens, fix_lmap, 288);})();var _deflateRaw = (function _deflateRawIIFE() { var DST_LN_RE = use_typed_arrays ? new Uint8Array(0x8000) : []; var j = 0, k = 0; for(; j < DST_LN.length - 1; ++j) { for(; k < DST_LN[j+1]; ++k) DST_LN_RE[k] = j; } for(;k < 32768; ++k) DST_LN_RE[k] = 29;
var LEN_LN_RE = use_typed_arrays ? new Uint8Array(0x103) : []; for(j = 0, k = 0; j < LEN_LN.length - 1; ++j) { for(; k < LEN_LN[j+1]; ++k) LEN_LN_RE[k] = j; }
function write_stored(data, out) { var boff = 0; while(boff < data.length) { var L = Math.min(0xFFFF, data.length - boff); var h = boff + L == data.length; out.write_shift(1, +h); out.write_shift(2, L); out.write_shift(2, (~L) & 0xFFFF); while(L-- > 0) out[out.l++] = data[boff++]; } return out.l; }
/* Fixed Huffman */ function write_huff_fixed(data, out) { var bl = 0; var boff = 0; var addrs = use_typed_arrays ? new Uint16Array(0x8000) : []; while(boff < data.length) { var L = /* data.length - boff; */ Math.min(0xFFFF, data.length - boff);
/* write a stored block for short data */ if(L < 10) { bl = write_bits_3(out, bl, +!!(boff + L == data.length)); // jshint ignore:line if(bl & 7) bl += 8 - (bl & 7); out.l = (bl / 8) | 0; out.write_shift(2, L); out.write_shift(2, (~L) & 0xFFFF); while(L-- > 0) out[out.l++] = data[boff++]; bl = out.l * 8; continue; }
bl = write_bits_3(out, bl, +!!(boff + L == data.length) + 2); // jshint ignore:line var hash = 0; while(L-- > 0) { var d = data[boff]; hash = ((hash << 5) ^ d) & 0x7FFF;
var match = -1, mlen = 0;
if((match = addrs[hash])) { match |= boff & ~0x7FFF; if(match > boff) match -= 0x8000; if(match < boff) while(data[match + mlen] == data[boff + mlen] && mlen < 250) ++mlen; }
if(mlen > 2) { /* Copy Token */ d = LEN_LN_RE[mlen]; if(d <= 22) bl = write_bits_8(out, bl, bitswap8[d+1]>>1) - 1; else { write_bits_8(out, bl, 3); bl += 5; write_bits_8(out, bl, bitswap8[d-23]>>5); bl += 3; } var len_eb = (d < 8) ? 0 : ((d - 4)>>2); if(len_eb > 0) { write_bits_16(out, bl, mlen - LEN_LN[d]); bl += len_eb; }
d = DST_LN_RE[boff - match]; bl = write_bits_8(out, bl, bitswap8[d]>>3); bl -= 3;
var dst_eb = d < 4 ? 0 : (d-2)>>1; if(dst_eb > 0) { write_bits_16(out, bl, boff - match - DST_LN[d]); bl += dst_eb; } for(var q = 0; q < mlen; ++q) { addrs[hash] = boff & 0x7FFF; hash = ((hash << 5) ^ data[boff]) & 0x7FFF; ++boff; } L-= mlen - 1; } else { /* Literal Token */ if(d <= 143) d = d + 48; else bl = write_bits_1(out, bl, 1); bl = write_bits_8(out, bl, bitswap8[d]); addrs[hash] = boff & 0x7FFF; ++boff; } }
bl = write_bits_8(out, bl, 0) - 1; } out.l = ((bl + 7)/8)|0; return out.l; } return function _deflateRaw(data, out) { if(data.length < 8) return write_stored(data, out); return write_huff_fixed(data, out); };})();
function _deflate(data) { var buf = new_buf(50+Math.floor(data.length*1.1)); var off = _deflateRaw(data, buf); return buf.slice(0, off);}/* modified inflate function also moves original read head */
var dyn_lmap = use_typed_arrays ? new Uint16Array(32768) : zero_fill_array(32768);var dyn_dmap = use_typed_arrays ? new Uint16Array(32768) : zero_fill_array(32768);var dyn_cmap = use_typed_arrays ? new Uint16Array(128) : zero_fill_array(128);var dyn_len_1 = 1, dyn_len_2 = 1;
/* 5.5.3 Expanding Huffman Codes */function dyn(data, boff/*:number*/) { /* nomenclature from RFC1951 refers to bit values; these are offset by the implicit constant */ var _HLIT = read_bits_5(data, boff) + 257; boff += 5; var _HDIST = read_bits_5(data, boff) + 1; boff += 5; var _HCLEN = read_bits_4(data, boff) + 4; boff += 4; var w = 0;
/* grab and store code lengths */ var clens = use_typed_arrays ? new Uint8Array(19) : zero_fill_array(19); var ctree = [ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]; var maxlen = 1; var bl_count = use_typed_arrays ? new Uint8Array(8) : zero_fill_array(8); var next_code = use_typed_arrays ? new Uint8Array(8) : zero_fill_array(8); var L = clens.length; /* 19 */ for(var i = 0; i < _HCLEN; ++i) { clens[CLEN_ORDER[i]] = w = read_bits_3(data, boff); if(maxlen < w) maxlen = w; bl_count[w]++; boff += 3; }
/* build code tree */ var ccode = 0; bl_count[0] = 0; for(i = 1; i <= maxlen; ++i) next_code[i] = ccode = (ccode + bl_count[i-1])<<1; for(i = 0; i < L; ++i) if((ccode = clens[i]) != 0) ctree[i] = next_code[ccode]++; /* cmap[7 bits from stream] = (off&7) + (lit<<3) */ var cleni = 0; for(i = 0; i < L; ++i) { cleni = clens[i]; if(cleni != 0) { ccode = bitswap8[ctree[i]]>>(8-cleni); for(var j = (1<<(7-cleni))-1; j>=0; --j) dyn_cmap[ccode|(j<<cleni)] = (cleni&7) | (i<<3); } }
/* read literal and dist codes at once */ var hcodes/*:Array<number>*/ = []; maxlen = 1; for(; hcodes.length < _HLIT + _HDIST;) { ccode = dyn_cmap[read_bits_7(data, boff)]; boff += ccode & 7; switch((ccode >>>= 3)) { case 16: w = 3 + read_bits_2(data, boff); boff += 2; ccode = hcodes[hcodes.length - 1]; while(w-- > 0) hcodes.push(ccode); break; case 17: w = 3 + read_bits_3(data, boff); boff += 3; while(w-- > 0) hcodes.push(0); break; case 18: w = 11 + read_bits_7(data, boff); boff += 7; while(w -- > 0) hcodes.push(0); break; default: hcodes.push(ccode); if(maxlen < ccode) maxlen = ccode; break; } }
/* build literal / length trees */ var h1 = hcodes.slice(0, _HLIT), h2 = hcodes.slice(_HLIT); for(i = _HLIT; i < 286; ++i) h1[i] = 0; for(i = _HDIST; i < 30; ++i) h2[i] = 0; dyn_len_1 = build_tree(h1, dyn_lmap, 286); dyn_len_2 = build_tree(h2, dyn_dmap, 30); return boff;}
/* return [ data, bytesRead ] */function inflate(data, usz/*:number*/) { /* shortcircuit for empty buffer [0x03, 0x00] */ if(data[0] == 3 && !(data[1] & 0x3)) { return [new_raw_buf(usz), 2]; }
/* bit offset */ var boff = 0;
/* header includes final bit and type bits */ var header = 0;
var outbuf = new_unsafe_buf(usz ? usz : (1<<18)); var woff = 0; var OL = outbuf.length>>>0; var max_len_1 = 0, max_len_2 = 0;
while((header&1) == 0) { header = read_bits_3(data, boff); boff += 3; if((header >>> 1) == 0) { /* Stored block */ if(boff & 7) boff += 8 - (boff&7); /* 2 bytes sz, 2 bytes bit inverse */ var sz = data[boff>>>3] | data[(boff>>>3)+1]<<8; boff += 32; /* push sz bytes */ if(sz > 0) { if(!usz && OL < woff + sz) { outbuf = realloc(outbuf, woff + sz); OL = outbuf.length; } while(sz-- > 0) { outbuf[woff++] = data[boff>>>3]; boff += 8; } } continue; } else if((header >> 1) == 1) { /* Fixed Huffman */ max_len_1 = 9; max_len_2 = 5; } else { /* Dynamic Huffman */ boff = dyn(data, boff); max_len_1 = dyn_len_1; max_len_2 = dyn_len_2; } for(;;) { // while(true) is apparently out of vogue in modern JS circles if(!usz && (OL < woff + 32767)) { outbuf = realloc(outbuf, woff + 32767); OL = outbuf.length; } /* ingest code and move read head */ var bits = read_bits_n(data, boff, max_len_1); var code = (header>>>1) == 1 ? fix_lmap[bits] : dyn_lmap[bits]; boff += code & 15; code >>>= 4; /* 0-255 are literals, 256 is end of block token, 257+ are copy tokens */ if(((code>>>8)&0xFF) === 0) outbuf[woff++] = code; else if(code == 256) break; else { code -= 257; var len_eb = (code < 8) ? 0 : ((code-4)>>2); if(len_eb > 5) len_eb = 0; var tgt = woff + LEN_LN[code]; /* length extra bits */ if(len_eb > 0) { tgt += read_bits_n(data, boff, len_eb); boff += len_eb; }
/* dist code */ bits = read_bits_n(data, boff, max_len_2); code = (header>>>1) == 1 ? fix_dmap[bits] : dyn_dmap[bits]; boff += code & 15; code >>>= 4; var dst_eb = (code < 4 ? 0 : (code-2)>>1); var dst = DST_LN[code]; /* dist extra bits */ if(dst_eb > 0) { dst += read_bits_n(data, boff, dst_eb); boff += dst_eb; }
/* in the common case, manual byte copy is faster than TA set / Buffer copy */ if(!usz && OL < tgt) { outbuf = realloc(outbuf, tgt + 100); OL = outbuf.length; } while(woff < tgt) { outbuf[woff] = outbuf[woff - dst]; ++woff; } } } } if(usz) return [outbuf, (boff+7)>>>3]; return [outbuf.slice(0, woff), (boff+7)>>>3];}
function _inflate(payload, usz) { var data = payload.slice(payload.l||0); var out = inflate(data, usz); payload.l += out[1]; return out[0];}
function warn_or_throw(wrn, msg) { if(wrn) { if(typeof console !== 'undefined') console.error(msg); } else throw new Error(msg);}
function parse_zip(file/*:RawBytes*/, options/*:CFBReadOpts*/)/*:CFBContainer*/ { var blob/*:CFBlob*/ = /*::(*/file/*:: :any)*/; prep_blob(blob, 0);
var FileIndex/*:CFBFileIndex*/ = [], FullPaths/*:Array<string>*/ = []; var o = { FileIndex: FileIndex, FullPaths: FullPaths }; init_cfb(o, { root: options.root });
/* find end of central directory, start just after signature */ var i = blob.length - 4; while((blob[i] != 0x50 || blob[i+1] != 0x4b || blob[i+2] != 0x05 || blob[i+3] != 0x06) && i >= 0) --i; blob.l = i + 4;
/* parse end of central directory */ blob.l += 4; var fcnt = blob.read_shift(2); blob.l += 6; var start_cd = blob.read_shift(4);
/* parse central directory */ blob.l = start_cd;
for(i = 0; i < fcnt; ++i) { /* trust local file header instead of CD entry */ blob.l += 20; var csz = blob.read_shift(4); var usz = blob.read_shift(4); var namelen = blob.read_shift(2); var efsz = blob.read_shift(2); var fcsz = blob.read_shift(2); blob.l += 8; var offset = blob.read_shift(4); var EF = parse_extra_field(/*::(*/blob.slice(blob.l+namelen, blob.l+namelen+efsz)/*:: :any)*/); blob.l += namelen + efsz + fcsz;
var L = blob.l; blob.l = offset + 4; parse_local_file(blob, csz, usz, o, EF); blob.l = L; } return o;}
/* head starts just after local file header signature */function parse_local_file(blob/*:CFBlob*/, csz/*:number*/, usz/*:number*/, o/*:CFBContainer*/, EF) { /* [local file header] */ blob.l += 2; var flags = blob.read_shift(2); var meth = blob.read_shift(2); var date = parse_dos_date(blob);
if(flags & 0x2041) throw new Error("Unsupported ZIP encryption"); var crc32 = blob.read_shift(4); var _csz = blob.read_shift(4); var _usz = blob.read_shift(4);
var namelen = blob.read_shift(2); var efsz = blob.read_shift(2);
// TODO: flags & (1<<11) // UTF8 var name = ""; for(var i = 0; i < namelen; ++i) name += String.fromCharCode(blob[blob.l++]); if(efsz) { var ef = parse_extra_field(/*::(*/blob.slice(blob.l, blob.l + efsz)/*:: :any)*/); if((ef[0x5455]||{}).mt) date = ef[0x5455].mt; if(((EF||{})[0x5455]||{}).mt) date = EF[0x5455].mt; } blob.l += efsz;
/* [encryption header] */
/* [file data] */ var data = blob.slice(blob.l, blob.l + _csz); switch(meth) { case 8: data = _inflateRawSync(blob, _usz); break; case 0: break; // TODO: scan for magic number default: throw new Error("Unsupported ZIP Compression method " + meth); }
/* [data descriptor] */ var wrn = false; if(flags & 8) { crc32 = blob.read_shift(4); if(crc32 == 0x08074b50) { crc32 = blob.read_shift(4); wrn = true; } _csz = blob.read_shift(4); _usz = blob.read_shift(4); }
if(_csz != csz) warn_or_throw(wrn, "Bad compressed size: " + csz + " != " + _csz); if(_usz != usz) warn_or_throw(wrn, "Bad uncompressed size: " + usz + " != " + _usz); //var _crc32 = CRC32.buf(data, 0); //if((crc32>>0) != (_crc32>>0)) warn_or_throw(wrn, "Bad CRC32 checksum: " + crc32 + " != " + _crc32); cfb_add(o, name, data, {unsafe: true, mt: date});}function write_zip(cfb/*:CFBContainer*/, options/*:CFBWriteOpts*/)/*:RawBytes*/ { var _opts = options || {}; var out = [], cdirs = []; var o/*:CFBlob*/ = new_buf(1); var method = (_opts.compression ? 8 : 0), flags = 0; var desc = false; if(desc) flags |= 8; var i = 0, j = 0;
var start_cd = 0, fcnt = 0; var root = cfb.FullPaths[0], fp = root, fi = cfb.FileIndex[0]; var crcs = []; var sz_cd = 0;
for(i = 1; i < cfb.FullPaths.length; ++i) { fp = cfb.FullPaths[i].slice(root.length); fi = cfb.FileIndex[i]; if(!fi.size || !fi.content || fp == "\u0001Sh33tJ5") continue; var start = start_cd;
/* TODO: CP437 filename */ var namebuf = new_buf(fp.length); for(j = 0; j < fp.length; ++j) namebuf.write_shift(1, fp.charCodeAt(j) & 0x7F); namebuf = namebuf.slice(0, namebuf.l); crcs[fcnt] = CRC32.buf(/*::((*/fi.content/*::||[]):any)*/, 0);
var outbuf = fi.content/*::||[]*/; if(method == 8) outbuf = _deflateRawSync(outbuf);
/* local file header */ o = new_buf(30); o.write_shift(4, 0x04034b50); o.write_shift(2, 20); o.write_shift(2, flags); o.write_shift(2, method); /* TODO: last mod file time/date */ if(fi.mt) write_dos_date(o, fi.mt); else o.write_shift(4, 0); o.write_shift(-4, (flags & 8) ? 0 : crcs[fcnt]); o.write_shift(4, (flags & 8) ? 0 : outbuf.length); o.write_shift(4, (flags & 8) ? 0 : /*::(*/fi.content/*::||[])*/.length); o.write_shift(2, namebuf.length); o.write_shift(2, 0);
start_cd += o.length; out.push(o); start_cd += namebuf.length; out.push(namebuf);
/* TODO: extra fields? */
/* TODO: encryption header ? */
start_cd += outbuf.length; out.push(outbuf);
/* data descriptor */ if(flags & 8) { o = new_buf(12); o.write_shift(-4, crcs[fcnt]); o.write_shift(4, outbuf.length); o.write_shift(4, /*::(*/fi.content/*::||[])*/.length); start_cd += o.l; out.push(o); }
/* central directory */ o = new_buf(46); o.write_shift(4, 0x02014b50); o.write_shift(2, 0); o.write_shift(2, 20); o.write_shift(2, flags); o.write_shift(2, method); o.write_shift(4, 0); /* TODO: last mod file time/date */ o.write_shift(-4, crcs[fcnt]);
o.write_shift(4, outbuf.length); o.write_shift(4, /*::(*/fi.content/*::||[])*/.length); o.write_shift(2, namebuf.length); o.write_shift(2, 0); o.write_shift(2, 0); o.write_shift(2, 0); o.write_shift(2, 0); o.write_shift(4, 0); o.write_shift(4, start);
sz_cd += o.l; cdirs.push(o); sz_cd += namebuf.length; cdirs.push(namebuf); ++fcnt; }
/* end of central directory */ o = new_buf(22); o.write_shift(4, 0x06054b50); o.write_shift(2, 0); o.write_shift(2, 0); o.write_shift(2, fcnt); o.write_shift(2, fcnt); o.write_shift(4, sz_cd); o.write_shift(4, start_cd); o.write_shift(2, 0);
return bconcat(([bconcat((out/*:any*/)), bconcat(cdirs), o]/*:any*/));}var ContentTypeMap = ({ "htm": "text/html", "xml": "text/xml",
"gif": "image/gif", "jpg": "image/jpeg", "png": "image/png",
"mso": "application/x-mso", "thmx": "application/vnd.ms-officetheme", "sh33tj5": "application/octet-stream"}/*:any*/);
function get_content_type(fi/*:CFBEntry*/, fp/*:string*/)/*:string*/ { if(fi.ctype) return fi.ctype;
var ext = fi.name || "", m = ext.match(/\.([^\.]+)$/); if(m && ContentTypeMap[m[1]]) return ContentTypeMap[m[1]];
if(fp) { m = (ext = fp).match(/[\.\\]([^\.\\])+$/); if(m && ContentTypeMap[m[1]]) return ContentTypeMap[m[1]]; }
return "application/octet-stream";}
/* 76 character chunks TODO: intertwine encoding */function write_base64_76(bstr/*:string*/)/*:string*/ { var data = Base64.encode(bstr); var o = []; for(var i = 0; i < data.length; i+= 76) o.push(data.slice(i, i+76)); return o.join("\r\n") + "\r\n";}
/*Rules for QP: - escape =## applies for all non-display characters and literal "=" - space or tab at end of line must be encoded - \r\n newlines can be preserved, but bare \r and \n must be escaped - lines must not exceed 76 characters, use soft breaks =\r\n
TODO: Some files from word appear to write line extensions with bare equals:
```<table class=3DMsoTableGrid border=3D1 cellspacing=3D0 cellpadding=3D0 width=="70%"```*/function write_quoted_printable(text/*:string*/)/*:string*/ { var encoded = text.replace(/[\x00-\x08\x0B\x0C\x0E-\x1F\x7E-\xFF=]/g, function(c) { var w = c.charCodeAt(0).toString(16).toUpperCase(); return "=" + (w.length == 1 ? "0" + w : w); });
encoded = encoded.replace(/ $/mg, "=20").replace(/\t$/mg, "=09");
if(encoded.charAt(0) == "\n") encoded = "=0D" + encoded.slice(1); encoded = encoded.replace(/\r(?!\n)/mg, "=0D").replace(/\n\n/mg, "\n=0A").replace(/([^\r\n])\n/mg, "$1=0A");
var o/*:Array<string>*/ = [], split = encoded.split("\r\n"); for(var si = 0; si < split.length; ++si) { var str = split[si]; if(str.length == 0) { o.push(""); continue; } for(var i = 0; i < str.length;) { var end = 76; var tmp = str.slice(i, i + end); if(tmp.charAt(end - 1) == "=") end --; else if(tmp.charAt(end - 2) == "=") end -= 2; else if(tmp.charAt(end - 3) == "=") end -= 3; tmp = str.slice(i, i + end); i += end; if(i < str.length) tmp += "="; o.push(tmp); } }
return o.join("\r\n");}function parse_quoted_printable(data/*:Array<string>*/)/*:RawBytes*/ { var o = [];
/* unify long lines */ for(var di = 0; di < data.length; ++di) { var line = data[di]; while(di <= data.length && line.charAt(line.length - 1) == "=") line = line.slice(0, line.length - 1) + data[++di]; o.push(line); }
/* decode */ for(var oi = 0; oi < o.length; ++oi) o[oi] = o[oi].replace(/[=][0-9A-Fa-f]{2}/g, function($$) { return String.fromCharCode(parseInt($$.slice(1), 16)); }); return s2a(o.join("\r\n"));}
function parse_mime(cfb/*:CFBContainer*/, data/*:Array<string>*/, root/*:string*/)/*:void*/ { var fname = "", cte = "", ctype = "", fdata; var di = 0; for(;di < 10; ++di) { var line = data[di]; if(!line || line.match(/^\s*$/)) break; var m = line.match(/^(.*?):\s*([^\s].*)$/); if(m) switch(m[1].toLowerCase()) { case "content-location": fname = m[2].trim(); break; case "content-type": ctype = m[2].trim(); break; case "content-transfer-encoding": cte = m[2].trim(); break; } } ++di; switch(cte.toLowerCase()) { case 'base64': fdata = s2a(Base64.decode(data.slice(di).join(""))); break; case 'quoted-printable': fdata = parse_quoted_printable(data.slice(di)); break; default: throw new Error("Unsupported Content-Transfer-Encoding " + cte); } var file = cfb_add(cfb, fname.slice(root.length), fdata, {unsafe: true}); if(ctype) file.ctype = ctype;}
function parse_mad(file/*:RawBytes*/, options/*:CFBReadOpts*/)/*:CFBContainer*/ { if(a2s(file.slice(0,13)).toLowerCase() != "mime-version:") throw new Error("Unsupported MAD header"); var root = (options && options.root || ""); // $FlowIgnore var data = (has_buf && Buffer.isBuffer(file) ? file.toString("binary") : a2s(file)).split("\r\n"); var di = 0, row = "";
/* if root is not specified, scan for the common prefix */ for(di = 0; di < data.length; ++di) { row = data[di]; if(!/^Content-Location:/i.test(row)) continue; row = row.slice(row.indexOf("file")); if(!root) root = row.slice(0, row.lastIndexOf("/") + 1); if(row.slice(0, root.length) == root) continue; while(root.length > 0) { root = root.slice(0, root.length - 1); root = root.slice(0, root.lastIndexOf("/") + 1); if(row.slice(0,root.length) == root) break; } }
var mboundary = (data[1] || "").match(/boundary="(.*?)"/); if(!mboundary) throw new Error("MAD cannot find boundary"); var boundary = "--" + (mboundary[1] || "");
var FileIndex/*:CFBFileIndex*/ = [], FullPaths/*:Array<string>*/ = []; var o = { FileIndex: FileIndex, FullPaths: FullPaths }; init_cfb(o); var start_di, fcnt = 0; for(di = 0; di < data.length; ++di) { var line = data[di]; if(line !== boundary && line !== boundary + "--") continue; if(fcnt++) parse_mime(o, data.slice(start_di, di), root); start_di = di; } return o;}
function write_mad(cfb/*:CFBContainer*/, options/*:CFBWriteOpts*/)/*:string*/ { var opts = options || {}; var boundary = opts.boundary || "SheetJS"; boundary = '------=' + boundary;
var out = [ 'MIME-Version: 1.0', 'Content-Type: multipart/related; boundary="' + boundary.slice(2) + '"', '', '', '' ];
var root = cfb.FullPaths[0], fp = root, fi = cfb.FileIndex[0]; for(var i = 1; i < cfb.FullPaths.length; ++i) { fp = cfb.FullPaths[i].slice(root.length); fi = cfb.FileIndex[i]; if(!fi.size || !fi.content || fp == "\u0001Sh33tJ5") continue;
/* Normalize filename */ fp = fp.replace(/[\x00-\x08\x0B\x0C\x0E-\x1F\x7E-\xFF]/g, function(c) { return "_x" + c.charCodeAt(0).toString(16) + "_"; }).replace(/[\u0080-\uFFFF]/g, function(u) { return "_u" + u.charCodeAt(0).toString(16) + "_"; });
/* Extract content as binary string */ var ca = fi.content; // $FlowIgnore var cstr = has_buf && Buffer.isBuffer(ca) ? ca.toString("binary") : a2s(ca);
/* 4/5 of first 1024 chars ascii -> quoted printable, else base64 */ var dispcnt = 0, L = Math.min(1024, cstr.length), cc = 0; for(var csl = 0; csl <= L; ++csl) if((cc=cstr.charCodeAt(csl)) >= 0x20 && cc < 0x80) ++dispcnt; var qp = dispcnt >= L * 4 / 5;
out.push(boundary); out.push('Content-Location: ' + (opts.root || 'file:///C:/SheetJS/') + fp); out.push('Content-Transfer-Encoding: ' + (qp ? 'quoted-printable' : 'base64')); out.push('Content-Type: ' + get_content_type(fi, fp)); out.push('');
out.push(qp ? write_quoted_printable(cstr) : write_base64_76(cstr)); } out.push(boundary + '--\r\n'); return out.join("\r\n");}function cfb_new(opts/*:?any*/)/*:CFBContainer*/ { var o/*:CFBContainer*/ = ({}/*:any*/); init_cfb(o, opts); return o;}
function cfb_add(cfb/*:CFBContainer*/, name/*:string*/, content/*:?RawBytes*/, opts/*:?any*/)/*:CFBEntry*/ { var unsafe = opts && opts.unsafe; if(!unsafe) init_cfb(cfb); var file = !unsafe && CFB.find(cfb, name); if(!file) { var fpath/*:string*/ = cfb.FullPaths[0]; if(name.slice(0, fpath.length) == fpath) fpath = name; else { if(fpath.slice(-1) != "/") fpath += "/"; fpath = (fpath + name).replace("//","/"); } file = ({name: filename(name), type: 2}/*:any*/); cfb.FileIndex.push(file); cfb.FullPaths.push(fpath); if(!unsafe) CFB.utils.cfb_gc(cfb); } /*:: if(!file) throw new Error("unreachable"); */ file.content = (content/*:any*/); file.size = content ? content.length : 0; if(opts) { if(opts.CLSID) file.clsid = opts.CLSID; if(opts.mt) file.mt = opts.mt; if(opts.ct) file.ct = opts.ct; } return file;}
function cfb_del(cfb/*:CFBContainer*/, name/*:string*/)/*:boolean*/ { init_cfb(cfb); var file = CFB.find(cfb, name); if(file) for(var j = 0; j < cfb.FileIndex.length; ++j) if(cfb.FileIndex[j] == file) { cfb.FileIndex.splice(j, 1); cfb.FullPaths.splice(j, 1); return true; } return false;}
function cfb_mov(cfb/*:CFBContainer*/, old_name/*:string*/, new_name/*:string*/)/*:boolean*/ { init_cfb(cfb); var file = CFB.find(cfb, old_name); if(file) for(var j = 0; j < cfb.FileIndex.length; ++j) if(cfb.FileIndex[j] == file) { cfb.FileIndex[j].name = filename(new_name); cfb.FullPaths[j] = new_name; return true; } return false;}
function cfb_gc(cfb/*:CFBContainer*/)/*:void*/ { rebuild_cfb(cfb, true); }
exports.find = find;exports.read = read;exports.parse = parse;exports.write = write;exports.writeFile = write_file;exports.utils = { cfb_new: cfb_new, cfb_add: cfb_add, cfb_del: cfb_del, cfb_mov: cfb_mov, cfb_gc: cfb_gc, ReadShift: ReadShift, CheckField: CheckField, prep_blob: prep_blob, bconcat: bconcat, use_zlib: use_zlib, _deflateRaw: _deflate, _inflateRaw: _inflate, consts: consts};
return exports;})();
if(typeof require !== 'undefined' && typeof module !== 'undefined' && typeof DO_NOT_EXPORT_CFB === 'undefined') { module.exports = CFB; }
sheetjs
Version Info
2 years ago
