127 lines
4.1 KiB
JavaScript
127 lines
4.1 KiB
JavaScript
/* [MS-XLS] 2.5.198.1 TODO */
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function parse_ArrayParsedFormula(blob, length, opts/*::, ref*/) {
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var target = blob.l + length, len = opts.biff == 2 ? 1 : 2;
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var rgcb, cce = blob.read_shift(len); // length of rgce
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if(cce == 0xFFFF) return [[],parsenoop(blob, length-2)];
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var rgce = parse_Rgce(blob, cce, opts);
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if(length !== cce + len) rgcb = parse_RgbExtra(blob, length - cce - len, rgce, opts);
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blob.l = target;
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return [rgce, rgcb];
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}
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/* [MS-XLS] 2.5.198.3 TODO */
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function parse_XLSCellParsedFormula(blob, length, opts) {
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var target = blob.l + length, len = opts.biff == 2 ? 1 : 2;
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var rgcb, cce = blob.read_shift(len); // length of rgce
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if(cce == 0xFFFF) return [[],parsenoop(blob, length-2)];
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var rgce = parse_Rgce(blob, cce, opts);
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if(length !== cce + len) rgcb = parse_RgbExtra(blob, length - cce - len, rgce, opts);
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blob.l = target;
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return [rgce, rgcb];
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}
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/* [MS-XLS] 2.5.198.21 */
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function parse_NameParsedFormula(blob, length, opts, cce) {
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var target = blob.l + length;
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var rgce = parse_Rgce(blob, cce, opts);
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var rgcb;
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if(target !== blob.l) rgcb = parse_RgbExtra(blob, target - blob.l, rgce, opts);
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return [rgce, rgcb];
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}
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/* [MS-XLS] 2.5.198.118 TODO */
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function parse_SharedParsedFormula(blob, length, opts) {
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var target = blob.l + length;
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var rgcb, cce = blob.read_shift(2); // length of rgce
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var rgce = parse_Rgce(blob, cce, opts);
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if(cce == 0xFFFF) return [[],parsenoop(blob, length-2)];
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if(length !== cce + 2) rgcb = parse_RgbExtra(blob, target - cce - 2, rgce, opts);
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return [rgce, rgcb];
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}
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/* [MS-XLS] 2.5.133 TODO: how to emit empty strings? */
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function parse_FormulaValue(blob/*::, length*/) {
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var b;
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if(__readUInt16LE(blob,blob.l + 6) !== 0xFFFF) return [parse_Xnum(blob),'n'];
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switch(blob[blob.l]) {
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case 0x00: blob.l += 8; return ["String", 's'];
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case 0x01: b = blob[blob.l+2] === 0x1; blob.l += 8; return [b,'b'];
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case 0x02: b = blob[blob.l+2]; blob.l += 8; return [b,'e'];
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case 0x03: blob.l += 8; return ["",'s'];
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}
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return [];
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}
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function write_FormulaValue(value) {
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if(value == null) {
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// Blank String Value
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var o = new_buf(8);
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o.write_shift(1, 0x03);
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o.write_shift(1, 0);
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o.write_shift(2, 0);
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o.write_shift(2, 0);
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o.write_shift(2, 0xFFFF);
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return o;
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} else if(typeof value == "number") return write_Xnum(value);
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return write_Xnum(0);
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}
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/* [MS-XLS] 2.4.127 TODO */
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function parse_Formula(blob, length, opts) {
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var end = blob.l + length;
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var cell = parse_XLSCell(blob, 6);
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if(opts.biff == 2) ++blob.l;
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var val = parse_FormulaValue(blob,8);
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var flags = blob.read_shift(1);
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if(opts.biff != 2) {
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blob.read_shift(1);
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if(opts.biff >= 5) {
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/*var chn = */blob.read_shift(4);
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}
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}
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var cbf = parse_XLSCellParsedFormula(blob, end - blob.l, opts);
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return {cell:cell, val:val[0], formula:cbf, shared: (flags >> 3) & 1, tt:val[1]};
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}
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function write_Formula(cell/*:Cell*/, R/*:number*/, C/*:number*/, opts, os/*:number*/) {
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// Cell
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var o1 = write_XLSCell(R, C, os);
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// FormulaValue
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var o2 = write_FormulaValue(cell.v);
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// flags + cache
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var o3 = new_buf(6);
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var flags = 0x01 | 0x20;
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o3.write_shift(2, flags);
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o3.write_shift(4, 0);
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// CellParsedFormula
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var bf = new_buf(cell.bf.length);
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for(var i = 0; i < cell.bf.length; ++i) bf[i] = cell.bf[i];
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var out = bconcat([o1, o2, o3, bf]);
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return out;
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}
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/* XLSB Parsed Formula records have the same shape */
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function parse_XLSBParsedFormula(data, length, opts) {
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var cce = data.read_shift(4);
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var rgce = parse_Rgce(data, cce, opts);
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var cb = data.read_shift(4);
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var rgcb = cb > 0 ? parse_RgbExtra(data, cb, rgce, opts) : null;
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return [rgce, rgcb];
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}
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/* [MS-XLSB] 2.5.97.1 ArrayParsedFormula */
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var parse_XLSBArrayParsedFormula = parse_XLSBParsedFormula;
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/* [MS-XLSB] 2.5.97.4 CellParsedFormula */
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var parse_XLSBCellParsedFormula = parse_XLSBParsedFormula;
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/* [MS-XLSB] 2.5.97.8 DVParsedFormula */
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//var parse_XLSBDVParsedFormula = parse_XLSBParsedFormula;
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/* [MS-XLSB] 2.5.97.9 FRTParsedFormula */
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//var parse_XLSBFRTParsedFormula = parse_XLSBParsedFormula2;
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/* [MS-XLSB] 2.5.97.12 NameParsedFormula */
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var parse_XLSBNameParsedFormula = parse_XLSBParsedFormula;
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/* [MS-XLSB] 2.5.97.98 SharedParsedFormula */
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var parse_XLSBSharedParsedFormula = parse_XLSBParsedFormula;
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