Files
pixelheros/extensions/Excel转JSON/node_modules/node-xlsx/lib/helpers.js
walkpan 8f57f57c1d dd
2024-08-18 23:38:55 +08:00

142 lines
3.7 KiB
JavaScript

"use strict";
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
exports.__esModule = true;
exports.buildSheetFromMatrix = exports.buildExcelDate = exports.isCellDescriptor = exports.isObject = exports.isString = exports.isNumber = exports.isBoolean = void 0;
var _xlsx = _interopRequireDefault(require("xlsx"));
var ORIGIN_DATE = new Date(Date.UTC(1899, 11, 30));
var isBoolean = function isBoolean(maybeBoolean) {
return typeof maybeBoolean === 'boolean';
};
exports.isBoolean = isBoolean;
var isNumber = function isNumber(maybeNumber) {
return typeof maybeNumber === 'number';
};
exports.isNumber = isNumber;
var isString = function isString(maybeString) {
return typeof maybeString === 'string';
};
exports.isString = isString;
var isObject = function isObject(maybeObject) {
return maybeObject !== null && typeof maybeObject === 'object';
};
exports.isObject = isObject;
var isCellDescriptor = function isCellDescriptor(maybeCell) {
return isObject(maybeCell) && 'v' in maybeCell;
};
exports.isCellDescriptor = isCellDescriptor;
var buildExcelDate = function buildExcelDate(value, is1904) {
var epoch = Date.parse(value + (is1904 ? 1462 : 0));
return (epoch - ORIGIN_DATE) / 864e5;
};
exports.buildExcelDate = buildExcelDate;
var buildSheetFromMatrix = function buildSheetFromMatrix(data, options) {
if (options === void 0) {
options = {};
}
var workSheet = {};
var range = {
s: {
c: 1e7,
r: 1e7
},
e: {
c: 0,
r: 0
}
};
if (!Array.isArray(data)) throw new Error('sheet data is not array');
for (var R = 0; R !== data.length; R += 1) {
for (var C = 0; C !== data[R].length; C += 1) {
if (!Array.isArray(data[R])) throw new Error(`${R}th row data is not array`);
if (range.s.r > R) range.s.r = R;
if (range.s.c > C) range.s.c = C;
if (range.e.r < R) range.e.r = R;
if (range.e.c < C) range.e.c = C;
if (data[R][C] === null) {
continue; // eslint-disable-line
}
var cell = isCellDescriptor(data[R][C]) ? data[R][C] : {
v: data[R][C]
};
var cellRef = _xlsx.default.utils.encode_cell({
c: C,
r: R
});
if (isNumber(cell.v)) {
cell.t = 'n';
} else if (isBoolean(cell.v)) {
cell.t = 'b';
} else if (cell.v instanceof Date) {
cell.t = 'n';
cell.v = buildExcelDate(cell.v);
cell.z = cell.z || _xlsx.default.SSF._table[14]; // eslint-disable-line no-underscore-dangle
/* eslint-disable spaced-comment, no-trailing-spaces */
/***
* Allows for an non-abstracted representation of the data
*
* example: {t:'n', z:10, f:'=AVERAGE(A:A)'}
*
* Documentation:
* - Cell Object: https://sheetjs.gitbooks.io/docs/#cell-object
* - Data Types: https://sheetjs.gitbooks.io/docs/#data-types
* - Format: https://sheetjs.gitbooks.io/docs/#number-formats
**/
/* eslint-disable spaced-comment, no-trailing-spaces */
} else if (isObject(cell.v)) {
cell.t = cell.v.t;
cell.f = cell.v.f;
cell.F = cell.v.F;
cell.z = cell.v.z;
} else {
cell.t = 's';
}
if (isNumber(cell.z)) cell.z = _xlsx.default.SSF._table[cell.z]; // eslint-disable-line no-underscore-dangle
workSheet[cellRef] = cell;
}
}
if (range.s.c < 1e7) {
workSheet['!ref'] = _xlsx.default.utils.encode_range(range);
}
if (options['!cols']) {
workSheet['!cols'] = options['!cols'];
}
if (options['!merges']) {
workSheet['!merges'] = options['!merges'];
}
return workSheet;
};
exports.buildSheetFromMatrix = buildSheetFromMatrix;
//# sourceMappingURL=helpers.js.map