forked from sheetjs/sheetjs
309 lines
9.3 KiB
JavaScript
309 lines
9.3 KiB
JavaScript
function write_UInt32LE(x/*:number*/, o) {
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if (!o) o = new_buf(4);
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o.write_shift(4, x);
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return o;
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}
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/* [MS-XLSB] 2.5.168 */
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function parse_XLWideString(data/*::, length*/)/*:string*/ {
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var cchCharacters = data.read_shift(4);
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return cchCharacters === 0 ? "" : data.read_shift(cchCharacters, 'dbcs');
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}
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function write_XLWideString(data/*:string*/, o) {
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var _null = false; if (o == null) { _null = true; o = new_buf(4 + 2 * data.length); }
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o.write_shift(4, data.length);
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if (data.length > 0) o.write_shift(0, data, 'dbcs');
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return _null ? o.slice(0, o.l) : o;
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}
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/* [MS-XLSB] 2.5.91 */
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//function parse_LPWideString(data/*::, length*/)/*:string*/ {
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// var cchCharacters = data.read_shift(2);
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// return cchCharacters === 0 ? "" : data.read_shift(cchCharacters, "utf16le");
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//}
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/* [MS-XLSB] 2.5.143 */
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function parse_StrRun(data) {
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return { ich: data.read_shift(2), ifnt: data.read_shift(2) };
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}
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function write_StrRun(run, o) {
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if (!o) o = new_buf(4);
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o.write_shift(2, run.ich || 0);
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o.write_shift(2, run.ifnt || 0);
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return o;
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}
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/* [MS-XLSB] 2.5.121 */
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function parse_RichStr(data, length/*:number*/)/*:XLString*/ {
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var start = data.l;
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var flags = data.read_shift(1);
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var str = parse_XLWideString(data);
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var rgsStrRun = [];
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var z = ({ t: str, h: str }/*:any*/);
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if ((flags & 1) !== 0) { /* fRichStr */
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/* TODO: formatted string */
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var dwSizeStrRun = data.read_shift(4);
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for (var i = 0; i != dwSizeStrRun; ++i) rgsStrRun.push(parse_StrRun(data));
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z.r = rgsStrRun;
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}
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else z.r = [{ ich: 0, ifnt: 0 }];
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//if((flags & 2) !== 0) { /* fExtStr */
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// /* TODO: phonetic string */
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//}
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data.l = start + length;
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return z;
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}
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function write_RichStr(str/*:XLString*/, o/*:?Block*/)/*:Block*/ {
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/* TODO: formatted string */
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var _null = false; if (o == null) { _null = true; o = new_buf(15 + 4 * str.t.length); }
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o.write_shift(1, 0);
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write_XLWideString(str.t, o);
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return _null ? o.slice(0, o.l) : o;
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}
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/* [MS-XLSB] 2.4.328 BrtCommentText (RichStr w/1 run) */
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var parse_BrtCommentText = parse_RichStr;
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function write_BrtCommentText(str/*:XLString*/, o/*:?Block*/)/*:Block*/ {
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/* TODO: formatted string */
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var _null = false; if (o == null) { _null = true; o = new_buf(23 + 4 * str.t.length); }
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o.write_shift(1, 1);
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write_XLWideString(str.t, o);
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o.write_shift(4, 1);
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write_StrRun({ ich: 0, ifnt: 0 }, o);
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return _null ? o.slice(0, o.l) : o;
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}
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/* [MS-XLSB] 2.5.9 */
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function parse_XLSBCell(data)/*:any*/ {
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var col = data.read_shift(4);
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var iStyleRef = data.read_shift(2);
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iStyleRef += data.read_shift(1) << 16;
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data.l++; //var fPhShow = data.read_shift(1);
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return { c: col, iStyleRef: iStyleRef };
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}
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function write_XLSBCell(cell/*:any*/, o/*:?Block*/) {
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if (o == null) o = new_buf(8);
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o.write_shift(-4, cell.c);
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o.write_shift(3, cell.iStyleRef || cell.s);
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o.write_shift(1, 0); /* fPhShow */
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return o;
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}
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/* Short XLSB Cell does not include column */
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function parse_XLSBShortCell(data)/*:any*/ {
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var iStyleRef = data.read_shift(2);
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iStyleRef += data.read_shift(1) <<16;
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data.l++; //var fPhShow = data.read_shift(1);
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return { c:-1, iStyleRef: iStyleRef };
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}
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function write_XLSBShortCell(cell/*:any*/, o/*:?Block*/) {
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if(o == null) o = new_buf(4);
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o.write_shift(3, cell.iStyleRef || cell.s);
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o.write_shift(1, 0); /* fPhShow */
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return o;
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}
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/* [MS-XLSB] 2.5.21 */
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var parse_XLSBCodeName = parse_XLWideString;
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var write_XLSBCodeName = write_XLWideString;
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/* [MS-XLSB] 2.5.166 */
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function parse_XLNullableWideString(data/*::, length*/)/*:string*/ {
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var cchCharacters = data.read_shift(4);
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return cchCharacters === 0 || cchCharacters === 0xFFFFFFFF ? "" : data.read_shift(cchCharacters, 'dbcs');
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}
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function write_XLNullableWideString(data/*:string*/, o) {
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var _null = false; if (o == null) { _null = true; o = new_buf(127); }
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o.write_shift(4, data.length > 0 ? data.length : 0xFFFFFFFF);
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if (data.length > 0) o.write_shift(0, data, 'dbcs');
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return _null ? o.slice(0, o.l) : o;
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}
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/* [MS-XLSB] 2.5.165 */
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var parse_XLNameWideString = parse_XLWideString;
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//var write_XLNameWideString = write_XLWideString;
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/* [MS-XLSB] 2.5.114 */
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var parse_RelID = parse_XLNullableWideString;
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var write_RelID = write_XLNullableWideString;
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/* [MS-XLS] 2.5.217 ; [MS-XLSB] 2.5.122 */
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function parse_RkNumber(data)/*:number*/ {
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var b = data.slice(data.l, data.l + 4);
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var fX100 = (b[0] & 1), fInt = (b[0] & 2);
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data.l += 4;
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var RK = fInt === 0 ? __double([0, 0, 0, 0, (b[0] & 0xFC), b[1], b[2], b[3]], 0) : __readInt32LE(b, 0) >> 2;
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return fX100 ? (RK / 100) : RK;
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}
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function write_RkNumber(data/*:number*/, o) {
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if (o == null) o = new_buf(4);
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var fX100 = 0, fInt = 0, d100 = data * 100;
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if ((data == (data | 0)) && (data >= -(1 << 29)) && (data < (1 << 29))) { fInt = 1; }
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else if ((d100 == (d100 | 0)) && (d100 >= -(1 << 29)) && (d100 < (1 << 29))) { fInt = 1; fX100 = 1; }
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if (fInt) o.write_shift(-4, ((fX100 ? d100 : data) << 2) + (fX100 + 2));
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else throw new Error("unsupported RkNumber " + data); // TODO
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}
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/* [MS-XLSB] 2.5.117 RfX */
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function parse_RfX(data /*::, length*/)/*:Range*/ {
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var cell/*:Range*/ = ({ s: {}, e: {} }/*:any*/);
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cell.s.r = data.read_shift(4);
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cell.e.r = data.read_shift(4);
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cell.s.c = data.read_shift(4);
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cell.e.c = data.read_shift(4);
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return cell;
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}
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function write_RfX(r/*:Range*/, o) {
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if (!o) o = new_buf(16);
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o.write_shift(4, r.s.r);
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o.write_shift(4, r.e.r);
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o.write_shift(4, r.s.c);
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o.write_shift(4, r.e.c);
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return o;
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}
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/* [MS-XLSB] 2.5.153 UncheckedRfX */
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var parse_UncheckedRfX = parse_RfX;
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var write_UncheckedRfX = write_RfX;
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/* [MS-XLSB] 2.5.155 UncheckedSqRfX */
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//function parse_UncheckedSqRfX(data) {
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// var cnt = data.read_shift(4);
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// var out = [];
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// for(var i = 0; i < cnt; ++i) {
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// var rng = parse_UncheckedRfX(data);
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// out.push(encode_range(rng));
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// }
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// return out.join(",");
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//}
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//function write_UncheckedSqRfX(sqrfx/*:string*/) {
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// var parts = sqrfx.split(/\s*,\s*/);
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// var o = new_buf(4); o.write_shift(4, parts.length);
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// var out = [o];
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// parts.forEach(function(rng) {
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// out.push(write_UncheckedRfX(safe_decode_range(rng)));
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// });
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// return bconcat(out);
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//}
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/* [MS-XLS] 2.5.342 ; [MS-XLSB] 2.5.171 */
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/* TODO: error checking, NaN and Infinity values are not valid Xnum */
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function parse_Xnum(data/*::, length*/) {
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if(data.length - data.l < 8) throw "XLS Xnum Buffer underflow";
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return data.read_shift(8, 'f');
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}
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function write_Xnum(data, o) { return (o || new_buf(8)).write_shift(8, data, 'f'); }
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/* [MS-XLSB] 2.4.324 BrtColor */
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function parse_BrtColor(data/*::, length*/) {
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var out = {};
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var d = data.read_shift(1);
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//var fValidRGB = d & 1;
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var xColorType = d >>> 1;
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var index = data.read_shift(1);
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var nTS = data.read_shift(2, 'i');
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var bR = data.read_shift(1);
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var bG = data.read_shift(1);
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var bB = data.read_shift(1);
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data.l++; //var bAlpha = data.read_shift(1);
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switch (xColorType) {
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case 0: out.auto = 1; break;
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case 1:
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out.index = index;
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var icv = XLSIcv[index];
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/* automatic pseudo index 81 */
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if (icv) out.rgb = rgb2Hex(icv);
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break;
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case 2:
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/* if(!fValidRGB) throw new Error("invalid"); */
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out.rgb = rgb2Hex([bR, bG, bB]);
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break;
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case 3: out.theme = index; break;
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}
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if (nTS != 0) out.tint = nTS > 0 ? nTS / 32767 : nTS / 32768;
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return out;
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}
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function write_BrtColor(color, o) {
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if (!o) o = new_buf(8);
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if (!color || color.auto) { o.write_shift(4, 0); o.write_shift(4, 0); return o; }
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if (color.index != null) {
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o.write_shift(1, 0x02);
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o.write_shift(1, color.index);
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} else if (color.theme != null) {
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o.write_shift(1, 0x06);
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o.write_shift(1, color.theme);
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} else {
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o.write_shift(1, 0x05);
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o.write_shift(1, 0);
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}
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var nTS = color.tint || 0;
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if (nTS > 0) nTS *= 32767;
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else if (nTS < 0) nTS *= 32768;
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o.write_shift(2, nTS);
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if (!color.rgb || color.theme != null) {
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o.write_shift(2, 0);
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o.write_shift(1, 0);
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o.write_shift(1, 0);
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} else {
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var rgb = (color.rgb || 'FFFFFF');
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if (typeof rgb == 'number') rgb = ("000000" + rgb.toString(16)).slice(-6);
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o.write_shift(1, parseInt(rgb.slice(0, 2), 16));
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o.write_shift(1, parseInt(rgb.slice(2, 4), 16));
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o.write_shift(1, parseInt(rgb.slice(4, 6), 16));
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o.write_shift(1, 0xFF);
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}
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return o;
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}
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/* [MS-XLSB] 2.5.52 */
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function parse_FontFlags(data/*::, length, opts*/) {
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var d = data.read_shift(1);
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data.l++;
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var out = {
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fBold: d & 0x01,
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fItalic: d & 0x02,
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fUnderline: d & 0x04,
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fStrikeout: d & 0x08,
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fOutline: d & 0x10,
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fShadow: d & 0x20,
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fCondense: d & 0x40,
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fExtend: d & 0x80
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};
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return out;
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}
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function write_FontFlags(font, o) {
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if (!o) o = new_buf(2);
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var grbit =
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(font.italic ? 0x02 : 0) |
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(font.strike ? 0x08 : 0) |
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(font.outline ? 0x10 : 0) |
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(font.shadow ? 0x20 : 0) |
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(font.condense ? 0x40 : 0) |
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(font.extend ? 0x80 : 0);
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o.write_shift(1, grbit);
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o.write_shift(1, 0);
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return o;
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}
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/* [MS-OLEDS] 2.3.1 and 2.3.2 */
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function parse_ClipboardFormatOrString(o, w/*:number*/)/*:string*/ {
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// $FlowIgnore
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var ClipFmt = { 2: "BITMAP", 3: "METAFILEPICT", 8: "DIB", 14: "ENHMETAFILE" };
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var m/*:number*/ = o.read_shift(4);
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switch (m) {
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case 0x00000000: return "";
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case 0xffffffff: case 0xfffffffe: return ClipFmt[o.read_shift(4)] || "";
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}
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if (m > 0x190) throw new Error("Unsupported Clipboard: " + m.toString(16));
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o.l -= 4;
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return o.read_shift(0, w == 1 ? "lpstr" : "lpwstr");
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}
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function parse_ClipboardFormatOrAnsiString(o) { return parse_ClipboardFormatOrString(o, 1); }
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function parse_ClipboardFormatOrUnicodeString(o) { return parse_ClipboardFormatOrString(o, 2); }
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