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45 lines
1.4 KiB
45 lines
1.4 KiB
3 years ago
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const colCache = require('./col-cache');
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// const cellRefRegex = /(([a-z_\-0-9]*)!)?[$]?([a-z]+)[$]?([1-9][0-9]*)/i;
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const replacementCandidateRx = /(([a-z_\-0-9]*)!)?([a-z0-9_$]{2,})([(])?/gi;
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const CRrx = /^([$])?([a-z]+)([$])?([1-9][0-9]*)$/i;
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function slideFormula(formula, fromCell, toCell) {
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const offset = colCache.decode(fromCell);
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const to = colCache.decode(toCell);
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return formula.replace(
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replacementCandidateRx,
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(refMatch, sheet, sheetMaybe, addrPart, trailingParen) => {
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if (trailingParen) {
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return refMatch;
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}
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const match = CRrx.exec(addrPart);
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if (match) {
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const colDollar = match[1];
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const colStr = match[2].toUpperCase();
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const rowDollar = match[3];
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const rowStr = match[4];
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if (colStr.length > 3 || (colStr.length === 3 && colStr > 'XFD')) {
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// > XFD is the highest col number in excel 2007 and beyond, so this is a named range
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return refMatch;
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}
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let col = colCache.l2n(colStr);
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let row = parseInt(rowStr, 10);
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if (!colDollar) {
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col += to.col - offset.col;
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}
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if (!rowDollar) {
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row += to.row - offset.row;
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}
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const res = (sheet || '') + (colDollar || '') + colCache.n2l(col) + (rowDollar || '') + row;
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return res;
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}
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return refMatch;
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}
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);
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}
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module.exports = {
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slideFormula,
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};
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