forked from sheetjs/sheetjs
SheetJS
51182e57ef
- xlsx.njs use dense mode by default - CSV Streaming output for nodejs - XLSX/XLSB error on password protected documents - record hoppers switch on record number rather than name
489 lines
18 KiB
JavaScript
489 lines
18 KiB
JavaScript
/* from js-harb (C) 2014-present SheetJS */
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var DBF = (function() {
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var dbf_codepage_map = {
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/* Code Pages Supported by Visual FoxPro */
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/*::[*/0x01/*::]*/: 437, /*::[*/0x02/*::]*/: 850,
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/*::[*/0x03/*::]*/: 1252, /*::[*/0x04/*::]*/: 10000,
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/*::[*/0x64/*::]*/: 852, /*::[*/0x65/*::]*/: 866,
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/*::[*/0x66/*::]*/: 865, /*::[*/0x67/*::]*/: 861,
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/*::[*/0x68/*::]*/: 895, /*::[*/0x69/*::]*/: 620,
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/*::[*/0x6A/*::]*/: 737, /*::[*/0x6B/*::]*/: 857,
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/*::[*/0x78/*::]*/: 950, /*::[*/0x79/*::]*/: 949,
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/*::[*/0x7A/*::]*/: 936, /*::[*/0x7B/*::]*/: 932,
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/*::[*/0x7C/*::]*/: 874, /*::[*/0x7D/*::]*/: 1255,
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/*::[*/0x7E/*::]*/: 1256, /*::[*/0x96/*::]*/: 10007,
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/*::[*/0x97/*::]*/: 10029, /*::[*/0x98/*::]*/: 10006,
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/*::[*/0xC8/*::]*/: 1250, /*::[*/0xC9/*::]*/: 1251,
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/*::[*/0xCA/*::]*/: 1254, /*::[*/0xCB/*::]*/: 1253,
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/* shapefile DBF extension */
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/*::[*/0x00/*::]*/: 20127, /*::[*/0x08/*::]*/: 865,
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/*::[*/0x09/*::]*/: 437, /*::[*/0x0A/*::]*/: 850,
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/*::[*/0x0B/*::]*/: 437, /*::[*/0x0D/*::]*/: 437,
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/*::[*/0x0E/*::]*/: 850, /*::[*/0x0F/*::]*/: 437,
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/*::[*/0x10/*::]*/: 850, /*::[*/0x11/*::]*/: 437,
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/*::[*/0x12/*::]*/: 850, /*::[*/0x13/*::]*/: 932,
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/*::[*/0x14/*::]*/: 850, /*::[*/0x15/*::]*/: 437,
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/*::[*/0x16/*::]*/: 850, /*::[*/0x17/*::]*/: 865,
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/*::[*/0x18/*::]*/: 437, /*::[*/0x19/*::]*/: 437,
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/*::[*/0x1A/*::]*/: 850, /*::[*/0x1B/*::]*/: 437,
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/*::[*/0x1C/*::]*/: 863, /*::[*/0x1D/*::]*/: 850,
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/*::[*/0x1F/*::]*/: 852, /*::[*/0x22/*::]*/: 852,
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/*::[*/0x23/*::]*/: 852, /*::[*/0x24/*::]*/: 860,
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/*::[*/0x25/*::]*/: 850, /*::[*/0x26/*::]*/: 866,
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/*::[*/0x37/*::]*/: 850, /*::[*/0x40/*::]*/: 852,
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/*::[*/0x4D/*::]*/: 936, /*::[*/0x4E/*::]*/: 949,
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/*::[*/0x4F/*::]*/: 950, /*::[*/0x50/*::]*/: 874,
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/*::[*/0x57/*::]*/: 1252, /*::[*/0x58/*::]*/: 1252,
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/*::[*/0x59/*::]*/: 1252,
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/*::[*/0xFF/*::]*/: 16969
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};
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/* TODO: find an actual specification */
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function dbf_to_aoa(buf, opts)/*:AOA*/ {
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var out/*:AOA*/ = [];
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/* TODO: browser based */
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var d/*:Block*/ = (new_raw_buf(1)/*:any*/);
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switch(opts.type) {
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case 'base64': d = s2a(Base64.decode(buf)); break;
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case 'binary': d = s2a(buf); break;
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case 'buffer':
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case 'array': d = buf; break;
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}
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prep_blob(d, 0);
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/* header */
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var ft = d.read_shift(1);
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var memo = false;
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var vfp = false;
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switch(ft) {
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case 0x02: case 0x03: break;
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case 0x30: vfp = true; memo = true; break;
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case 0x31: vfp = true; break;
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case 0x83: memo = true; break;
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case 0x8B: memo = true; break;
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case 0xF5: memo = true; break;
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default: throw new Error("DBF Unsupported Version: " + ft.toString(16));
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}
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var filedate = new Date(), nrow = 0, fpos = 0;
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if(ft == 0x02) nrow = d.read_shift(2);
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filedate = new Date(d.read_shift(1) + 1900, d.read_shift(1) - 1, d.read_shift(1));
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if(ft != 0x02) nrow = d.read_shift(4);
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if(ft != 0x02) fpos = d.read_shift(2);
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var rlen = d.read_shift(2);
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var flags = 0, current_cp = 1252;
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if(ft != 0x02) {
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d.l+=16;
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flags = d.read_shift(1);
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//if(memo && ((flags & 0x02) === 0)) throw new Error("DBF Flags " + flags.toString(16) + " ft " + ft.toString(16));
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/* codepage present in FoxPro */
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if(d[d.l] !== 0) current_cp = dbf_codepage_map[d[d.l]];
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d.l+=1;
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d.l+=2;
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}
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var fields = [], field = {};
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var hend = fpos - 10 - (vfp ? 264 : 0);
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while(ft == 0x02 ? d.l < d.length && d[d.l] != 0x0d: d.l < hend) {
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field = {};
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field.name = cptable.utils.decode(current_cp, d.slice(d.l, d.l+10)).replace(/[\u0000\r\n].*$/g,"");
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d.l += 11;
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field.type = String.fromCharCode(d.read_shift(1));
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if(ft != 0x02) field.offset = d.read_shift(4);
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field.len = d.read_shift(1);
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if(ft == 0x02) field.offset = d.read_shift(2);
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field.dec = d.read_shift(1);
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if(field.name.length) fields.push(field);
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if(ft != 0x02) d.l += 14;
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switch(field.type) {
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// case 'B': break; // Binary
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case 'C': break; // character
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case 'D': break; // date
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case 'F': break; // floating point
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// case 'G': break; // General
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case 'I': break; // long
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case 'L': break; // boolean
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case 'M': break; // memo
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case 'N': break; // number
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// case 'O': break; // double
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// case 'P': break; // Picture
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case 'T': break; // datetime
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case 'Y': break; // currency
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case '0': break; // null ?
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case '+': break; // autoincrement
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case '@': break; // timestamp
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default: throw new Error('Unknown Field Type: ' + field.type);
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}
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}
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if(d[d.l] !== 0x0D) d.l = fpos-1;
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else if(ft == 0x02) d.l = 0x209;
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if(ft != 0x02) {
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if(d.read_shift(1) !== 0x0D) throw new Error("DBF Terminator not found " + d.l + " " + d[d.l]);
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d.l = fpos;
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}
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/* data */
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var R = 0, C = 0;
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out[0] = [];
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for(C = 0; C != fields.length; ++C) out[0][C] = fields[C].name;
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while(nrow-- > 0) {
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if(d[d.l] === 0x2A) { d.l+=rlen; continue; }
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++d.l;
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out[++R] = []; C = 0;
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for(C = 0; C != fields.length; ++C) {
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var dd = d.slice(d.l, d.l+fields[C].len); d.l+=fields[C].len;
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prep_blob(dd, 0);
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var s = cptable.utils.decode(current_cp, dd);
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switch(fields[C].type) {
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case 'C':
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out[R][C] = cptable.utils.decode(current_cp, dd);
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out[R][C] = out[R][C].trim();
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break;
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case 'D':
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if(s.length === 8) out[R][C] = new Date(+s.substr(0,4), +s.substr(4,2)-1, +s.substr(6,2));
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else out[R][C] = s;
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break;
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case 'F': out[R][C] = parseFloat(s.trim()); break;
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case 'I': out[R][C] = dd.read_shift(4, 'i'); break;
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case 'L': switch(s.toUpperCase()) {
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case 'Y': case 'T': out[R][C] = true; break;
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case 'N': case 'F': out[R][C] = false; break;
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case ' ': case '?': out[R][C] = false; break; /* NOTE: technically unitialized */
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default: throw new Error("DBF Unrecognized L:|" + s + "|");
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} break;
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case 'M': /* TODO: handle memo files */
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if(!memo) throw new Error("DBF Unexpected MEMO for type " + ft.toString(16));
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out[R][C] = "##MEMO##" + dd.read_shift(4);
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break;
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case 'N': out[R][C] = +s.replace(/\u0000/g,"").trim(); break;
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case 'T':
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var day = dd.read_shift(4), ms = dd.read_shift(4);
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throw new Error(day + " | " + ms);
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//out[R][C] = new Date(); // FIXME!!!
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//break;
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case 'Y': out[R][C] = dd.read(4,'i')/1e4; break;
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case '0':
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if(fields[C].name === '_NullFlags') break;
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/* falls through */
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default: throw new Error("DBF Unsupported data type " + fields[C].type);
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}
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}
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}
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if(ft != 0x02) if(d.l < d.length && d[d.l++] != 0x1A) throw new Error("DBF EOF Marker missing " + (d.l-1) + " of " + d.length + " " + d[d.l-1].toString(16));
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return out;
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}
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function dbf_to_sheet(buf, opts)/*:Worksheet*/ {
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var o = opts || {};
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if(!o.dateNF) o.dateNF = "yyyymmdd";
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return aoa_to_sheet(dbf_to_aoa(buf, o), o);
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}
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function dbf_to_workbook(buf, opts)/*:Workbook*/ {
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try { return sheet_to_workbook(dbf_to_sheet(buf, opts), opts); }
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catch(e) { if(opts && opts.WTF) throw e; }
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return ({SheetNames:[],Sheets:{}});
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}
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return {
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to_workbook: dbf_to_workbook,
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to_sheet: dbf_to_sheet
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};
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})();
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var SYLK = (function() {
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/* TODO: find an actual specification */
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function sylk_to_aoa(d/*:RawData*/, opts)/*:AOA*/ {
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switch(opts.type) {
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case 'base64': return sylk_to_aoa_str(Base64.decode(d), opts);
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case 'binary': return sylk_to_aoa_str(d, opts);
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case 'buffer': return sylk_to_aoa_str(d.toString('binary'), opts);
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case 'array': return sylk_to_aoa_str(cc2str(d), opts);
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}
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throw new Error("Unrecognized type " + opts.type);
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}
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function sylk_to_aoa_str(str/*:string*/, opts)/*:AOA*/ {
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var records = str.split(/[\n\r]+/), R = -1, C = -1, ri = 0, rj = 0, arr = [];
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var formats = [];
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var next_cell_format = null;
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for (; ri !== records.length; ++ri) {
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var record = records[ri].trim().split(";");
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var RT = record[0], val;
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if(RT === 'P') for(rj=1; rj<record.length; ++rj) switch(record[rj].charAt(0)) {
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case 'P':
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formats.push(record[rj].substr(1));
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break;
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}
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else if(RT !== 'C' && RT !== 'F') continue;
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else for(rj=1; rj<record.length; ++rj) switch(record[rj].charAt(0)) {
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case 'Y':
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R = parseInt(record[rj].substr(1))-1; C = 0;
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for(var j = arr.length; j <= R; ++j) arr[j] = [];
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break;
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case 'X': C = parseInt(record[rj].substr(1))-1; break;
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case 'K':
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val = record[rj].substr(1);
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if(val.charAt(0) === '"') val = val.substr(1,val.length - 2);
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else if(val === 'TRUE') val = true;
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else if(val === 'FALSE') val = false;
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else if(+val === +val) {
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val = +val;
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if(next_cell_format !== null && next_cell_format.match(/[ymdhmsYMDHMS]/)) val = numdate(val);
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}
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arr[R][C] = val;
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next_cell_format = null;
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break;
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case 'P':
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if(RT !== 'F') break;
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next_cell_format = formats[parseInt(record[rj].substr(1))];
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}
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}
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return arr;
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}
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function sylk_to_sheet(str/*:string*/, opts)/*:Worksheet*/ { return aoa_to_sheet(sylk_to_aoa(str, opts), opts); }
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function sylk_to_workbook(str/*:string*/, opts)/*:Workbook*/ { return sheet_to_workbook(sylk_to_sheet(str, opts), opts); }
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function write_ws_cell_sylk(cell/*:Cell*/, ws/*:Worksheet*/, R/*:number*/, C/*:number*/, opts)/*:string*/ {
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var o = "C;Y" + (R+1) + ";X" + (C+1) + ";K";
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switch(cell.t) {
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case 'n': o += cell.v; break;
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case 'b': o += cell.v ? "TRUE" : "FALSE"; break;
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case 'e': o += cell.w || cell.v; break;
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case 'd': o += '"' + (cell.w || cell.v) + '"'; break;
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case 's': o += '"' + cell.v.replace(/"/g,"") + '"'; break;
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}
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return o;
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}
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function sheet_to_sylk(ws/*:Worksheet*/, opts/*:?any*/)/*:string*/ {
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var preamble/*:Array<string>*/ = ["ID;PWXL;N;E"], o/*:Array<string>*/ = [];
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preamble.push("P;PGeneral");
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var r = decode_range(ws['!ref']), cell/*:Cell*/;
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var dense = Array.isArray(ws);
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for(var R = r.s.r; R <= r.e.r; ++R) {
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for(var C = r.s.c; C <= r.e.c; ++C) {
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var coord = encode_cell({r:R,c:C});
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cell = dense ? (ws[R]||[])[C]: ws[coord];
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if(!cell || cell.v == null) continue;
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o.push(write_ws_cell_sylk(cell, ws, R, C, opts));
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}
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}
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preamble.push("F;P0;DG0G8;M255");
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var RS = "\r\n";
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return preamble.join(RS) + RS + o.join(RS) + RS + "E" + RS;
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}
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return {
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to_workbook: sylk_to_workbook,
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to_sheet: sylk_to_sheet,
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from_sheet: sheet_to_sylk
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};
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})();
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var DIF = (function() {
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function dif_to_aoa(d/*:RawData*/, opts)/*:AOA*/ {
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switch(opts.type) {
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case 'base64': return dif_to_aoa_str(Base64.decode(d), opts);
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case 'binary': return dif_to_aoa_str(d, opts);
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case 'buffer': return dif_to_aoa_str(d.toString('binary'), opts);
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case 'array': return dif_to_aoa_str(cc2str(d), opts);
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}
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throw new Error("Unrecognized type " + opts.type);
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}
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function dif_to_aoa_str(str/*:string*/, opts)/*:AOA*/ {
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var records = str.split('\n'), R = -1, C = -1, ri = 0, arr = [];
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for (; ri !== records.length; ++ri) {
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if (records[ri].trim() === 'BOT') { arr[++R] = []; C = 0; continue; }
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if (R < 0) continue;
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var metadata = records[ri].trim().split(",");
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var type = metadata[0], value = metadata[1];
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++ri;
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var data = records[ri].trim();
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switch (+type) {
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case -1:
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if (data === 'BOT') { arr[++R] = []; C = 0; continue; }
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else if (data !== 'EOD') throw new Error("Unrecognized DIF special command " + data);
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break;
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case 0:
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if(data === 'TRUE') arr[R][C] = true;
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else if(data === 'FALSE') arr[R][C] = false;
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else if(+value == +value) arr[R][C] = +value;
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else if(!isNaN(new Date(value).getDate())) arr[R][C] = new Date(value);
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else arr[R][C] = value;
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++C; break;
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case 1:
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data = data.substr(1,data.length-2);
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arr[R][C++] = data !== '' ? data : null;
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break;
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}
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if (data === 'EOD') break;
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}
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return arr;
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}
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function dif_to_sheet(str/*:string*/, opts)/*:Worksheet*/ { return aoa_to_sheet(dif_to_aoa(str, opts), opts); }
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function dif_to_workbook(str/*:string*/, opts)/*:Workbook*/ { return sheet_to_workbook(dif_to_sheet(str, opts), opts); }
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var sheet_to_dif = (function() {
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var push_field = function pf(o/*:Array<string>*/, topic/*:string*/, v/*:number*/, n/*:number*/, s/*:string*/) {
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o.push(topic);
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o.push(v + "," + n);
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o.push('"' + s.replace(/"/g,'""') + '"');
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};
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var push_value = function po(o/*:Array<string>*/, type/*:number*/, v/*:number*/, s/*:string*/) {
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o.push(type + "," + v);
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o.push(type == 1 ? '"' + s.replace(/"/g,'""') + '"' : s);
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};
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return function sheet_to_dif(ws/*:Worksheet*/, opts/*:?any*/)/*:string*/ {
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var o/*:Array<string>*/ = [];
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var r = decode_range(ws['!ref']), cell/*:Cell*/;
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var dense = Array.isArray(ws);
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push_field(o, "TABLE", 0, 1, "sheetjs");
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push_field(o, "VECTORS", 0, r.e.r - r.s.r + 1,"");
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push_field(o, "TUPLES", 0, r.e.c - r.s.c + 1,"");
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push_field(o, "DATA", 0, 0,"");
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for(var R = r.s.r; R <= r.e.r; ++R) {
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push_value(o, -1, 0, "BOT");
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for(var C = r.s.c; C <= r.e.c; ++C) {
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var coord = encode_cell({r:R,c:C});
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cell = dense ? (ws[R]||[])[C] : ws[coord];
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if(!cell || cell.v == null) { push_value(o, 1, 0, ""); continue;}
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switch(cell.t) {
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case 'n': push_value(o, 0, (/*cell.w ||*/ cell.v), "V"); break;
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case 'b': push_value(o, 0, cell.v ? 1 : 0, cell.v ? "TRUE" : "FALSE"); break;
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case 's': push_value(o, 1, 0, cell.v); break;
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default: push_value(o, 1, 0, "");
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}
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}
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}
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push_value(o, -1, 0, "EOD");
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var RS = "\r\n";
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var oo = o.join(RS);
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//while((oo.length & 0x7F) != 0) oo += "\0";
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return oo;
|
|
};
|
|
})();
|
|
return {
|
|
to_workbook: dif_to_workbook,
|
|
to_sheet: dif_to_sheet,
|
|
from_sheet: sheet_to_dif
|
|
};
|
|
})();
|
|
|
|
var PRN = (function() {
|
|
function set_text_arr(data/*:string*/, arr/*:AOA*/, R/*:number*/, C/*:number*/) {
|
|
if(data === 'TRUE') arr[R][C] = true;
|
|
else if(data === 'FALSE') arr[R][C] = false;
|
|
else if(data === ""){}
|
|
else if(+data == +data) arr[R][C] = +data;
|
|
else arr[R][C] = data;
|
|
}
|
|
|
|
function prn_to_aoa_str(f/*:string*/, opts)/*:AOA*/ {
|
|
var arr/*:AOA*/ = ([]/*:any*/);
|
|
if(!f || f.length === 0) return arr;
|
|
var lines = f.split(/[\r\n]/);
|
|
var L = lines.length - 1;
|
|
while(L >= 0 && lines[L].length === 0) --L;
|
|
var start = 10, idx = 0;
|
|
var R = 0;
|
|
for(; R <= L; ++R) {
|
|
idx = lines[R].indexOf(" ");
|
|
if(idx == -1) idx = lines[R].length; else idx++;
|
|
start = Math.max(start, idx);
|
|
}
|
|
for(R = 0; R <= L; ++R) {
|
|
arr[R] = [];
|
|
/* TODO: confirm that widths are always 10 */
|
|
var C = 0;
|
|
set_text_arr(lines[R].slice(0, start).trim(), arr, R, C);
|
|
for(C = 1; C <= (lines[R].length - start)/10 + 1; ++C)
|
|
set_text_arr(lines[R].slice(start+(C-1)*10,start+C*10).trim(),arr,R,C);
|
|
}
|
|
return arr;
|
|
}
|
|
|
|
function dsv_to_sheet_str(str/*:string*/, opts)/*:Worksheet*/ {
|
|
var o = opts || {};
|
|
var sep = "";
|
|
if(DENSE != null && o.dense == null) o.dense = DENSE;
|
|
var ws/*:Worksheet*/ = o.dense ? ([]/*:any*/) : ({}/*:any*/);
|
|
var range/*:Range*/ = ({s: {c:0, r:0}, e: {c:0, r:0}}/*:any*/);
|
|
|
|
/* known sep */
|
|
if(str.substr(0,4) == "sep=" && str.charCodeAt(5) == 10) { sep = str.charAt(4); str = str.substr(6); }
|
|
/* TODO: actually determine the separator */
|
|
if(str.substr(0,1024).indexOf("\t") == -1) sep = ","; else sep = "\t";
|
|
var R = 0, C = 0, v = 0;
|
|
var start = 0, end = 0, sepcc = sep.charCodeAt(0), instr = false, cc=0;
|
|
str = str.replace(/\r\n/g, "\n");
|
|
for(;end < str.length;++end) switch((cc=str.charCodeAt(end))) {
|
|
case 0x22: instr = !instr; break;
|
|
case sepcc: case 0x0a: if(instr) break;
|
|
var s = str.slice(start, end);
|
|
var cell = ({}/*:any*/);
|
|
if(s.charCodeAt(0) == 0x3D) { cell.t = 'n'; cell.f = s.substr(1); }
|
|
else if(s == "TRUE") { cell.t = 'b'; cell.v = true; }
|
|
else if(s == "FALSE") { cell.t = 'b'; cell.v = false; }
|
|
else if(!isNaN(v = parseFloat(s))) { cell.t = 'n'; cell.w = s; cell.v = v; }
|
|
else { cell.t = 's'; cell.v = s.replace(/^"/,"").replace(/"$/,"").replace(/""/g,'"'); }
|
|
if(o.dense) { if(!ws[R]) ws[R] = []; ws[R][C] = cell; }
|
|
else ws[encode_cell({c:C,r:R})] = cell;
|
|
start = end+1;
|
|
if(range.e.c < C) range.e.c = C;
|
|
if(range.e.r < R) range.e.r = R;
|
|
if(cc == sepcc) ++C; else { C = 0; ++R; } break;
|
|
default: break;
|
|
}
|
|
|
|
ws['!ref'] = encode_range(range);
|
|
return ws;
|
|
}
|
|
|
|
function prn_to_sheet_str(str/*:string*/, opts)/*:Worksheet*/ {
|
|
if(str.substr(0,4) == "sep=") return dsv_to_sheet_str(str, opts);
|
|
if(str.indexOf("\t") >= 0 || str.indexOf(",") >= 0) return dsv_to_sheet_str(str, opts);
|
|
return aoa_to_sheet(prn_to_aoa_str(str, opts), opts);
|
|
}
|
|
|
|
function prn_to_sheet(d/*:RawData*/, opts)/*:Worksheet*/ {
|
|
switch(opts.type) {
|
|
case 'base64': return prn_to_sheet_str(Base64.decode(d), opts);
|
|
case 'binary': return prn_to_sheet_str(d, opts);
|
|
case 'buffer': return prn_to_sheet_str(d.toString('binary'), opts);
|
|
case 'array': return prn_to_sheet_str(cc2str(d), opts);
|
|
}
|
|
throw new Error("Unrecognized type " + opts.type);
|
|
}
|
|
|
|
function prn_to_workbook(str/*:string*/, opts)/*:Workbook*/ { return sheet_to_workbook(prn_to_sheet(str, opts), opts); }
|
|
|
|
function sheet_to_prn(ws/*:Worksheet*/, opts/*:?any*/)/*:string*/ {
|
|
var o/*:Array<string>*/ = [];
|
|
var r = decode_range(ws['!ref']), cell/*:Cell*/;
|
|
var dense = Array.isArray(ws);
|
|
for(var R = r.s.r; R <= r.e.r; ++R) {
|
|
var oo = [];
|
|
for(var C = r.s.c; C <= r.e.c; ++C) {
|
|
var coord = encode_cell({r:R,c:C});
|
|
cell = dense ? (ws[R]||[])[C] : ws[coord];
|
|
if(!cell || cell.v == null) { oo.push(" "); continue; }
|
|
var w = (cell.w || (format_cell(cell), cell.w) || "").substr(0,10);
|
|
while(w.length < 10) w += " ";
|
|
oo.push(w + (C == 0 ? " " : ""));
|
|
}
|
|
o.push(oo.join(""));
|
|
}
|
|
return o.join("\n");
|
|
}
|
|
|
|
return {
|
|
to_workbook: prn_to_workbook,
|
|
to_sheet: prn_to_sheet,
|
|
from_sheet: sheet_to_prn
|
|
};
|
|
})();
|
|
|