function firstbyte(f/*:RawData*/,o/*:?TypeOpts*/)/*:Array*/ { var x = ""; switch((o||{}).type || "base64") { case 'buffer': return [f[0], f[1], f[2], f[3]]; case 'base64': x = Base64.decode(f.slice(0,24)); break; case 'binary': x = f; break; case 'array': return [f[0], f[1], f[2], f[3]]; default: throw new Error("Unrecognized type " + (o && o.type || "undefined")); } return [x.charCodeAt(0), x.charCodeAt(1), x.charCodeAt(2), x.charCodeAt(3)]; } function read_cfb(cfb/*:CFBContainer*/, opts/*:?ParseOpts*/)/*:Workbook*/ { if(CFB.find(cfb, "EncryptedPackage")) return parse_xlsxcfb(cfb, opts); return parse_xlscfb(cfb, opts); } function read_zip(data/*:RawData*/, opts/*:?ParseOpts*/)/*:Workbook*/ { /*:: if(!jszip) throw new Error("JSZip is not available"); */ var zip, d = data; var o = opts||{}; if(!o.type) o.type = (has_buf && Buffer.isBuffer(data)) ? "buffer" : "base64"; switch(o.type) { case "base64": zip = new jszip(d, { base64:true }); break; case "binary": case "array": zip = new jszip(d, { base64:false }); break; case "buffer": zip = new jszip(d); break; default: throw new Error("Unrecognized type " + o.type); } return parse_zip(zip, o); } function read_plaintext(data/*:string*/, o/*:ParseOpts*/)/*:Workbook*/ { var i = 0; main: while(i < data.length) switch(data.charCodeAt(i)) { case 0x0A: case 0x0D: case 0x20: ++i; break; case 0x3C: return parse_xlml(data.slice(i),o); default: break main; } return PRN.to_workbook(data, o); } function read_plaintext_raw(data/*:RawData*/, o/*:ParseOpts*/)/*:Workbook*/ { var str = "", bytes = firstbyte(data, o); switch(o.type) { case 'base64': str = Base64.decode(data); break; case 'binary': str = data; break; case 'buffer': str = data.toString('binary'); break; case 'array': str = cc2str(data); break; default: throw new Error("Unrecognized type " + o.type); } if(bytes[0] == 0xEF && bytes[1] == 0xBB && bytes[2] == 0xBF) str = utf8read(str); return read_plaintext(str, o); } function read_utf16(data/*:RawData*/, o/*:ParseOpts*/)/*:Workbook*/ { var d = data; if(o.type == 'base64') d = Base64.decode(d); d = cptable.utils.decode(1200, d.slice(2), 'str'); o.type = "binary"; return read_plaintext(d, o); } function bstrify(data/*:string*/)/*:string*/ { return !data.match(/[^\x00-\x7F]/) ? data : utf8write(data); } function read_prn(data, d, o, str) { if(str) { o.type = "string"; return PRN.to_workbook(data, o); } return PRN.to_workbook(d, o); } function readSync(data/*:RawData*/, opts/*:?ParseOpts*/)/*:Workbook*/ { reset_cp(); if(typeof ArrayBuffer !== 'undefined' && data instanceof ArrayBuffer) return readSync(new Uint8Array(data), opts); var d = data, n = [0,0,0,0], str = false; var o = opts||{}; _ssfopts = {}; if(o.dateNF) _ssfopts.dateNF = o.dateNF; if(!o.type) o.type = (has_buf && Buffer.isBuffer(data)) ? "buffer" : "base64"; if(o.type == "file") { o.type = has_buf ? "buffer" : "binary"; d = read_binary(data); } if(o.type == "string") { str = true; o.type = "binary"; o.codepage = 65001; d = bstrify(data); } if(o.type == 'array' && typeof Uint8Array !== 'undefined' && data instanceof Uint8Array && typeof ArrayBuffer !== 'undefined') { // $FlowIgnore var ab=new ArrayBuffer(3), vu=new Uint8Array(ab); vu.foo="bar"; // $FlowIgnore if(!vu.foo) {o=dup(o); o.type='array'; return readSync(ab2a(d), o);} } switch((n = firstbyte(d, o))[0]) { case 0xD0: return read_cfb(CFB.read(d, o), o); case 0x09: return parse_xlscfb(d, o); case 0x3C: return parse_xlml(d, o); case 0x49: if(n[1] === 0x44) return read_wb_ID(d, o); break; case 0x54: if(n[1] === 0x41 && n[2] === 0x42 && n[3] === 0x4C) return DIF.to_workbook(d, o); break; case 0x50: return (n[1] === 0x4B && n[2] < 0x09 && n[3] < 0x09) ? read_zip(d, o) : read_prn(data, d, o, str); case 0xEF: return n[3] === 0x3C ? parse_xlml(d, o) : read_prn(data, d, o, str); case 0xFF: if(n[1] === 0xFE) { return read_utf16(d, o); } break; case 0x00: if(n[1] === 0x00 && n[2] >= 0x02 && n[3] === 0x00) return WK_.to_workbook(d, o); break; case 0x03: case 0x83: case 0x8B: case 0x8C: return DBF.to_workbook(d, o); case 0x7B: if(n[1] === 0x5C && n[2] === 0x72 && n[3] === 0x74) return RTF.to_workbook(d, o); break; case 0x0A: case 0x0D: case 0x20: return read_plaintext_raw(d, o); } if(n[2] <= 12 && n[3] <= 31) return DBF.to_workbook(d, o); return read_prn(data, d, o, str); } function readFileSync(filename/*:string*/, opts/*:?ParseOpts*/)/*:Workbook*/ { var o = opts||{}; o.type = 'file'; return readSync(filename, o); }