forked from sheetjs/sheetjs
132 lines
3.4 KiB
JavaScript
132 lines
3.4 KiB
JavaScript
/*! xlsxspread.js (C) SheetJS LLC -- https://sheetjs.com/ */
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/* eslint-env browser */
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/*global XLSX */
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/*exported stox, xtos */
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/**
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* Converts data from SheetJS to x-spreadsheet
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*
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* @param {Object} wb SheetJS workbook object
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*
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* @returns {Object[]} An x-spreadsheet data
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*/
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function stox(wb) {
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var out = [];
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wb.SheetNames.forEach(function (name) {
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var o = { name: name, rows: {} };
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var ws = wb.Sheets[name];
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if(!ws || !ws["!ref"]) return;
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var range = XLSX.utils.decode_range(ws['!ref']);
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// sheet_to_json will lost empty row and col at begin as default
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range.s = { r: 0, c: 0 };
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var aoa = XLSX.utils.sheet_to_json(ws, {
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raw: false,
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header: 1,
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range: range
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});
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aoa.forEach(function (r, i) {
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var cells = {};
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r.forEach(function (c, j) {
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cells[j] = { text: c };
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var cellRef = XLSX.utils.encode_cell({ r: i, c: j });
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if ( ws[cellRef] != null && ws[cellRef].f != null) {
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cells[j].text = "=" + ws[cellRef].f;
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}
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});
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o.rows[i] = { cells: cells };
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});
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o.merges = [];
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(ws["!merges"]||[]).forEach(function (merge, i) {
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//Needed to support merged cells with empty content
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if (o.rows[merge.s.r] == null) {
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o.rows[merge.s.r] = { cells: {} };
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}
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if (o.rows[merge.s.r].cells[merge.s.c] == null) {
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o.rows[merge.s.r].cells[merge.s.c] = {};
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}
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o.rows[merge.s.r].cells[merge.s.c].merge = [
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merge.e.r - merge.s.r,
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merge.e.c - merge.s.c
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];
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o.merges[i] = XLSX.utils.encode_range(merge);
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});
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out.push(o);
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});
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return out;
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}
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/**
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* Converts data from x-spreadsheet to SheetJS
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*
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* @param {Object[]} sdata An x-spreadsheet data object
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*
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* @returns {Object} A SheetJS workbook object
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*/
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function xtos(sdata) {
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var out = XLSX.utils.book_new();
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sdata.forEach(function (xws) {
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var ws = {};
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var rowobj = xws.rows;
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var minCoord = { r: 0, c: 0 }, maxCoord = { r: 0, c: 0 };
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for (var ri = 0; ri < rowobj.len; ++ri) {
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var row = rowobj[ri];
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if (!row) continue;
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Object.keys(row.cells).forEach(function (k) {
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var idx = +k;
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if (isNaN(idx)) return;
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var lastRef = XLSX.utils.encode_cell({ r: ri, c: idx });
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if (ri > maxCoord.r) maxCoord.r = ri;
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if (idx > maxCoord.c) maxCoord.c = idx;
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var cellText = row.cells[k].text, type = "s";
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if (!cellText) {
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cellText = "";
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type = "z";
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} else if (!isNaN(Number(cellText))) {
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cellText = Number(cellText);
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type = "n";
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} else if (cellText.toLowerCase() === "true" || cellText.toLowerCase() === "false") {
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cellText = Boolean(cellText);
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type = "b";
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}
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ws[lastRef] = { v: cellText, t: type };
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if (type == "s" && cellText[0] == "=") {
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ws[lastRef].f = cellText.slice(1);
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}
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if (row.cells[k].merge != null) {
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if (ws["!merges"] == null) ws["!merges"] = [];
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ws["!merges"].push({
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s: { r: ri, c: idx },
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e: {
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r: ri + row.cells[k].merge[0],
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c: idx + row.cells[k].merge[1]
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}
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});
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}
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});
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}
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ws["!ref"] = minCoord ? XLSX.utils.encode_range({
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s: minCoord,
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e: maxCoord
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}) : "A1";
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XLSX.utils.book_append_sheet(out, ws, xws.name);
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});
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return out;
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}
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