IE Compatibility and notes
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README.md
10
README.md
@ -41,6 +41,16 @@ An appropriate version for each dependency is included in the dist/ directory.
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The complete single-file version is generated at `dist/xlsx.full.min.js`
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## ECMAScript 5 compatibility
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Since xlsx.js uses ES5 functions like `Array#forEach`, older browsers require
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[Polyfills](http://git.io/QVh77g). This repo and the gh-pages branch include
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[a shim](https://github.com/SheetJS/js-xlsx/blob/master/shim.js)
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To use the shim, add the shim before the script tag that loads xlsx.js:
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<script type="text/javascript" src="/path/to/shim.js"></script>
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## Parsing Workbooks
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For parsing, the first step is to read the file.
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@ -11,7 +11,7 @@ var EXT_PROPS = [
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["LinksUpToDate", "LinksUpToDate", "bool"],
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["ScaleCrop", "ScaleCrop", "bool"],
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["HeadingPairs", "HeadingPairs", "raw"],
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["TitlesOfParts", "TitlesOfParts", "raw"],
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["TitlesOfParts", "TitlesOfParts", "raw"]
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];
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XMLNS.EXT_PROPS = "http://schemas.openxmlformats.org/officeDocument/2006/extended-properties";
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231
shim.js
Normal file
231
shim.js
Normal file
@ -0,0 +1,231 @@
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// From https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/keys
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if (!Object.keys) {
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Object.keys = (function () {
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var hasOwnProperty = Object.prototype.hasOwnProperty,
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hasDontEnumBug = !({toString: null}).propertyIsEnumerable('toString'),
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dontEnums = [
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'toString',
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'toLocaleString',
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'valueOf',
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'hasOwnProperty',
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'isPrototypeOf',
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'propertyIsEnumerable',
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'constructor'
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],
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dontEnumsLength = dontEnums.length;
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return function (obj) {
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if (typeof obj !== 'object' && typeof obj !== 'function' || obj === null) throw new TypeError('Object.keys called on non-object');
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var result = [];
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for (var prop in obj) {
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if (hasOwnProperty.call(obj, prop)) result.push(prop);
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}
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if (hasDontEnumBug) {
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for (var i=0; i < dontEnumsLength; i++) {
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if (hasOwnProperty.call(obj, dontEnums[i])) result.push(dontEnums[i]);
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}
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}
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return result;
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};
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})();
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}
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// From https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/filter
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if (!Array.prototype.filter)
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{
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Array.prototype.filter = function(fun /*, thisp */)
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{
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"use strict";
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if (this == null)
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throw new TypeError();
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var t = Object(this);
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var len = t.length >>> 0;
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if (typeof fun != "function")
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throw new TypeError();
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var res = [];
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var thisp = arguments[1];
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for (var i = 0; i < len; i++)
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{
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if (i in t)
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{
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var val = t[i]; // in case fun mutates this
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if (fun.call(thisp, val, i, t))
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res.push(val);
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}
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}
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return res;
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};
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}
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// From https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/Trim
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if (!String.prototype.trim) {
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String.prototype.trim = function () {
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return this.replace(/^\s+|\s+$/g, '');
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};
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}
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// From https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/forEach
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if (!Array.prototype.forEach)
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{
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Array.prototype.forEach = function(fun /*, thisArg */)
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{
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"use strict";
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if (this === void 0 || this === null)
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throw new TypeError();
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var t = Object(this);
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var len = t.length >>> 0;
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if (typeof fun !== "function")
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throw new TypeError();
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var thisArg = arguments.length >= 2 ? arguments[1] : void 0;
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for (var i = 0; i < len; i++)
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{
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if (i in t)
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fun.call(thisArg, t[i], i, t);
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}
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};
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}
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// Production steps of ECMA-262, Edition 5, 15.4.4.19
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// Reference: http://es5.github.com/#x15.4.4.19
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if (!Array.prototype.map) {
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Array.prototype.map = function(callback, thisArg) {
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var T, A, k;
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if (this == null) {
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throw new TypeError(" this is null or not defined");
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}
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// 1. Let O be the result of calling ToObject passing the |this| value as the argument.
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var O = Object(this);
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// 2. Let lenValue be the result of calling the Get internal method of O with the argument "length".
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// 3. Let len be ToUint32(lenValue).
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var len = O.length >>> 0;
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// 4. If IsCallable(callback) is false, throw a TypeError exception.
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// See: http://es5.github.com/#x9.11
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if (typeof callback !== "function") {
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throw new TypeError(callback + " is not a function");
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}
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// 5. If thisArg was supplied, let T be thisArg; else let T be undefined.
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if (thisArg) {
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T = thisArg;
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}
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// 6. Let A be a new array created as if by the expression new Array(len) where Array is
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// the standard built-in constructor with that name and len is the value of len.
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A = new Array(len);
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// 7. Let k be 0
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k = 0;
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// 8. Repeat, while k < len
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while(k < len) {
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var kValue, mappedValue;
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// a. Let Pk be ToString(k).
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// This is implicit for LHS operands of the in operator
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// b. Let kPresent be the result of calling the HasProperty internal method of O with argument Pk.
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// This step can be combined with c
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// c. If kPresent is true, then
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if (k in O) {
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// i. Let kValue be the result of calling the Get internal method of O with argument Pk.
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kValue = O[ k ];
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// ii. Let mappedValue be the result of calling the Call internal method of callback
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// with T as the this value and argument list containing kValue, k, and O.
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mappedValue = callback.call(T, kValue, k, O);
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// iii. Call the DefineOwnProperty internal method of A with arguments
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// Pk, Property Descriptor {Value: mappedValue, : true, Enumerable: true, Configurable: true},
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// and false.
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// In browsers that support Object.defineProperty, use the following:
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// Object.defineProperty(A, Pk, { value: mappedValue, writable: true, enumerable: true, configurable: true });
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// For best browser support, use the following:
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A[ k ] = mappedValue;
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}
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// d. Increase k by 1.
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k++;
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}
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// 9. return A
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return A;
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};
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}
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// From https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/indexOf
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if (!Array.prototype.indexOf) {
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Array.prototype.indexOf = function (searchElement, fromIndex) {
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if ( this === undefined || this === null ) {
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throw new TypeError( '"this" is null or not defined' );
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}
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var length = this.length >>> 0; // Hack to convert object.length to a UInt32
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fromIndex = +fromIndex || 0;
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if (Math.abs(fromIndex) === Infinity) {
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fromIndex = 0;
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}
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if (fromIndex < 0) {
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fromIndex += length;
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if (fromIndex < 0) {
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fromIndex = 0;
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}
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}
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for (;fromIndex < length; fromIndex++) {
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if (this[fromIndex] === searchElement) {
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return fromIndex;
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}
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}
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return -1;
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};
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}
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// https://github.com/ttaubert/node-arraybuffer-slice
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// (c) 2013 Tim Taubert <tim@timtaubert.de>
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// arraybuffer-slice may be freely distributed under the MIT license.
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"use strict";
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if (typeof ArrayBuffer !== 'undefined' && !ArrayBuffer.prototype.slice) {
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ArrayBuffer.prototype.slice = function (begin, end) {
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begin = (begin|0) || 0;
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var num = this.byteLength;
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end = end === (void 0) ? num : (end|0);
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// Handle negative values.
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if (begin < 0) begin += num;
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if (end < 0) end += num;
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if (num === 0 || begin >= num || begin >= end) {
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return new ArrayBuffer(0);
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}
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var length = Math.min(num - begin, end - begin);
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var target = new ArrayBuffer(length);
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var targetArray = new Uint8Array(target);
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targetArray.set(new Uint8Array(this, begin, length));
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return target;
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};
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}
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2
xlsx.js
2
xlsx.js
@ -1475,7 +1475,7 @@ var EXT_PROPS = [
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["LinksUpToDate", "LinksUpToDate", "bool"],
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["ScaleCrop", "ScaleCrop", "bool"],
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["HeadingPairs", "HeadingPairs", "raw"],
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["TitlesOfParts", "TitlesOfParts", "raw"],
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["TitlesOfParts", "TitlesOfParts", "raw"]
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];
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XMLNS.EXT_PROPS = "http://schemas.openxmlformats.org/officeDocument/2006/extended-properties";
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