forked from sheetjs/sheetjs
SheetJS
e14aee3e51
- XLSX / XLSB dynamic array formulae - use Uint8Array when available in write (fixes #2539 h/t @RScherzer) - mini build cleanup to satiate webpack (fixes #2526 #2530)
121 lines
3.6 KiB
TypeScript
121 lines
3.6 KiB
TypeScript
/// <reference path="src/types.ts"/>
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/* [MS-XLSB] 2.4.698 BrtMdtinfo */
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interface BrtMdtinfo {
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flags: number;
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version: number;
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name: string;
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}
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function parse_BrtMdtinfo(data: ReadableData, length: number): BrtMdtinfo {
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return {
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flags: data.read_shift(4),
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version: data.read_shift(4),
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name: parse_XLWideString(data, length - 8)
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};
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}
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function write_BrtMdtinfo(data: BrtMdtinfo): RawData {
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var o = new_buf(12 + 2 * data.name.length);
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o.write_shift(4, data.flags);
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o.write_shift(4, data.version);
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write_XLWideString(data.name, o);
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return o.slice(0, o.l);
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}
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/* [MS-XLSB] 2.4.697 BrtMdb */
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type Mdir = [number, number]; // "t", "v" in XLSX parlance
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type BrtMdb = Mdir[];
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function write_BrtMdb(mdb: BrtMdb): RawData {
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var o = new_buf(4 + 8 * mdb.length);
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o.write_shift(4, mdb.length);
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for(var i = 0; i < mdb.length; ++i) {
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o.write_shift(4, mdb[i][0]);
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o.write_shift(4, mdb[i][1]);
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}
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return o;
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}
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/* [MS-XLSB] 2.4.72 BrtBeginEsfmd */
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function write_BrtBeginEsfmd(cnt: number, name: string): RawData {
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var o = new_buf(8 + 2 * name.length);
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o.write_shift(4, cnt);
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write_XLWideString(name, o);
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return o.slice(0, o.l);
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}
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/* [MS-XLSB] 2.4.73 BrtBeginEsmdb */
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function write_BrtBeginEsmdb(cnt: number, cm: boolean): RawData {
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var o = new_buf(8);
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o.write_shift(4, cnt);
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o.write_shift(4, cm ? 1 : 0);
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return o;
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}
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/* [MS-XLSB] 2.1.7.34 Metadata */
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function parse_xlmeta_bin(data, name: string, _opts?: ParseXLMetaOptions): XLMeta {
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var out: XLMeta = { Types: [] };
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var opts = _opts || {};
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var state: string[] = [];
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var pass = false;
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recordhopper(data, (val, R_n, RT) => {
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switch(RT) {
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// case 0x014C: /* 'BrtBeginMetadata' */
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// case 0x014D: /* 'BrtEndMetadata' */
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// case 0x014E: /* 'BrtBeginEsmdtinfo' */
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// case 0x0150: /* 'BrtEndEsmdtinfo' */
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// case 0x0151: /* 'BrtBeginEsmdb' */
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// case 0x0152: /* 'BrtEndEsmdb' */
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// case 0x0153: /* 'BrtBeginEsfmd' */
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// case 0x0154: /* 'BrtEndEsfmd' */
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// case 0x0034: /* 'BrtBeginFmd' */
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// case 0x0035: /* 'BrtEndFmd' */
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// case 0x1000: /* 'BrtBeginDynamicArrayPr' */
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// case 0x1001: /* 'BrtEndDynamicArrayPr' */
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// case 0x138A: /* 'BrtBeginRichValueBlock' */
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// case 0x138B: /* 'BrtEndRichValueBlock' */
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case 0x014F: /* 'BrtMdtinfo' */
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out.Types.push({name: (val as BrtMdtinfo).name});
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break;
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case 0x0033: /* 'BrtMdb' */
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break;
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case 0x0023: /* 'BrtFRTBegin' */
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state.push(R_n); pass = true; break;
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case 0x0024: /* 'BrtFRTEnd' */
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state.pop(); pass = false; break;
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default:
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if((R_n||"").indexOf("Begin") > 0){/* empty */}
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else if((R_n||"").indexOf("End") > 0){/* empty */}
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else if(!pass || (opts.WTF && state[state.length-1] != "BrtFRTBegin")) throw new Error("Unexpected record " + RT + " " + R_n);
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}
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});
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return out;
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}
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function write_xlmeta_bin() {
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var ba = buf_array();
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write_record(ba, "BrtBeginMetadata");
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write_record(ba, "BrtBeginEsmdtinfo", write_UInt32LE(1));
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write_record(ba, "BrtMdtinfo", write_BrtMdtinfo({
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name: "XLDAPR",
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version: 120000,
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flags: 0xD06AC0B0
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}));
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write_record(ba, "BrtEndEsmdtinfo");
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/* [ESSTR] [ESMDX] */
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write_record(ba, "BrtBeginEsfmd", write_BrtBeginEsfmd(1, "XLDAPR"));
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write_record(ba, "BrtBeginFmd");
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write_record(ba, "BrtFRTBegin", write_UInt32LE(0x0202));
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write_record(ba, "BrtBeginDynamicArrayPr", write_UInt32LE(0));
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write_record(ba, "BrtEndDynamicArrayPr", writeuint16(1));
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write_record(ba, "BrtFRTEnd");
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write_record(ba, "BrtEndFmd");
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write_record(ba, "BrtEndEsfmd");
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write_record(ba, "BrtBeginEsmdb", write_BrtBeginEsmdb(1, true));
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write_record(ba, "BrtMdb", write_BrtMdb([[1, 0]]));
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write_record(ba, "BrtEndEsmdb");
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/* *FRT */
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write_record(ba, "BrtEndMetadata");
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return ba.end();
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}
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