forked from sheetjs/sheetjs
SheetJS
8508ad4e94
- correct BIFF-dependent cell reference wrapping - record layout fixes from sample files - use BIFF version 2.4.338 for BOF (fixes #995 h/t @benjaminleetmaa) - fixed potentially vulnerable regexes (h/t @davisjam) - removed insecure deep dependency (fixes #996 h/t @dcatoday)
47 lines
1.5 KiB
JavaScript
47 lines
1.5 KiB
JavaScript
/* XLS ranges enforced */
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function shift_cell_xls(cell/*:CellAddress*/, tgt/*:any*/, opts/*:?any*/)/*:CellAddress*/ {
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var out = dup(cell);
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if(tgt.s) {
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if(out.cRel) out.c += tgt.s.c;
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if(out.rRel) out.r += tgt.s.r;
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} else {
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if(out.cRel) out.c += tgt.c;
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if(out.rRel) out.r += tgt.r;
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}
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if(!opts || opts.biff < 12) {
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while(out.c >= 0x100) out.c -= 0x100;
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while(out.r >= 0x10000) out.r -= 0x10000;
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}
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return out;
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}
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function shift_range_xls(cell, range, opts) {
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var out = dup(cell);
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out.s = shift_cell_xls(out.s, range.s, opts);
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out.e = shift_cell_xls(out.e, range.s, opts);
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return out;
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}
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function encode_cell_xls(c/*:CellAddress*/, biff/*:number*/)/*:string*/ {
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if(c.cRel && c.c < 0) { c = dup(c); c.c += (biff > 8) ? 0x4000 : 0x100; }
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if(c.rRel && c.r < 0) { c = dup(c); c.r += (biff > 8) ? 0x100000 : ((biff > 5) ? 0x10000 : 0x4000); }
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var s = encode_cell(c);
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if(c.cRel === 0) s = fix_col(s);
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if(c.rRel === 0) s = fix_row(s);
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return s;
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}
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function encode_range_xls(r, opts)/*:string*/ {
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if(r.s.r == 0 && !r.s.rRel) {
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if(r.e.r == (opts.biff >= 12 ? 0xFFFFF : (opts.biff >= 8 ? 0x10000 : 0x4000)) && !r.e.rRel) {
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return (r.s.cRel ? "" : "$") + encode_col(r.s.c) + ":" + (r.e.cRel ? "" : "$") + encode_col(r.e.c);
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}
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}
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if(r.s.c == 0 && !r.s.cRel) {
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if(r.e.c == (opts.biff >= 12 ? 0xFFFF : 0xFF) && !r.e.cRel) {
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return (r.s.rRel ? "" : "$") + encode_row(r.s.r) + ":" + (r.e.rRel ? "" : "$") + encode_row(r.e.r);
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}
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}
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return encode_cell_xls(r.s, opts.biff) + ":" + encode_cell_xls(r.e, opts.biff);
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}
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