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exceljs

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Excel Workbook Manager - Read and Write xlsx and csv Files.

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const _ = require('../../../utils/under-dash'); const Range = require('../../../doc/range'); const colCache = require('../../../utils/col-cache'); const Enums = require('../../../doc/enums'); class Merges { constructor() { // optional mergeCells is array of ranges (like the xml) this.merges = {}; } add(merge) { // merge is {address, master} if (this.merges[merge.master]) { this.merges[merge.master].expandToAddress(merge.address); } else { const range = `${merge.master}:${merge.address}`; this.merges[merge.master] = new Range(range); } } get mergeCells() { return _.map(this.merges, merge => merge.range); } reconcile(mergeCells, rows) { // reconcile merge list with merge cells _.each(mergeCells, merge => { const dimensions = colCache.decode(merge); for (let i = dimensions.top; i <= dimensions.bottom; i++) { const row = rows[i - 1]; for (let j = dimensions.left; j <= dimensions.right; j++) { const cell = row.cells[j - 1]; if (!cell) { // nulls are not included in document - so if master cell has no value - add a null one here row.cells[j] = { type: Enums.ValueType.Null, address: colCache.encodeAddress(i, j), }; } else if (cell.type === Enums.ValueType.Merge) { cell.master = dimensions.tl; } } } }); } getMasterAddress(address) { // if address has been merged, return its master's address. Assumes reconcile has been called const range = this.hash[address]; return range && range.tl; } } module.exports = Merges;