31 lines
1.3 KiB
JavaScript
31 lines
1.3 KiB
JavaScript
/* TODO: it will be useful to parse the function str */
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var rc_to_a1 = (function(){
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var rcregex = /(^|[^A-Za-z])R(\[?)(-?\d+|)\]?C(\[?)(-?\d+|)\]?/g;
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var rcbase;
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function rcfunc($$,$1,$2,$3,$4,$5) {
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var R = $3.length>0?parseInt($3,10)|0:0, C = $5.length>0?parseInt($5,10)|0:0;
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if(C<0 && $4.length === 0) C=0;
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var cRel = false, rRel = false;
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if($4.length > 0 || $5.length == 0) cRel = true; if(cRel) C += rcbase.c; else --C;
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if($2.length > 0 || $3.length == 0) rRel = true; if(rRel) R += rcbase.r; else --R;
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return $1 + (cRel ? "" : "$") + encode_col(C) + (rRel ? "" : "$") + encode_row(R);
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}
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return function rc_to_a1(fstr, base) {
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rcbase = base;
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return fstr.replace(rcregex, rcfunc);
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};
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})();
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/* TODO actually parse the formula */
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function shift_formula_str(f/*:string*/, delta/*:Cell*/)/*:string*/ {
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return f.replace(/(^|[^A-Z0-9])([$]?)([A-Z]+)([$]?)(\d+)/g, function($0, $1, $2, $3, $4, $5, off, str) {
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return $1+($2=="$" ? $2+$3 : encode_col(decode_col($3)+delta.c))+($4=="$" ? $4+$5 : encode_row(decode_row($5) + delta.r));
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});
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}
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function shift_formula_xlsx(f/*:string*/, range/*:string*/, cell/*:string*/)/*:string*/ {
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var r = decode_range(range), s = r.s, c = decode_cell(cell);
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var delta = {r:c.r - s.r, c:c.c - s.c};
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return shift_formula_str(f, delta);
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}
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