Temporary use local autolinker

https://github.com/gregjacobs/Autolinker.js/pull/240/
https://github.com/gregjacobs/Autolinker.js/issues/130

src/modules/autolinker/utils.js

@@ -0,0 +1,124 @@
+/**
+ * Assigns (shallow copies) the properties of `src` onto `dest`, if the
+ * corresponding property on `dest` === `undefined`.
+ *
+ * @param {Object} dest The destination object.
+ * @param {Object} src The source object.
+ * @return {Object} The destination object (`dest`)
+ */
+export function defaults(dest, src) {
+    for (var prop in src) {
+        if (src.hasOwnProperty(prop) && dest[prop] === undefined) {
+            dest[prop] = src[prop];
+        }
+    }
+    return dest;
+}
+/**
+ * Truncates the `str` at `len - ellipsisChars.length`, and adds the `ellipsisChars` to the
+ * end of the string (by default, two periods: '..'). If the `str` length does not exceed
+ * `len`, the string will be returned unchanged.
+ *
+ * @param {String} str The string to truncate and add an ellipsis to.
+ * @param {Number} truncateLen The length to truncate the string at.
+ * @param {String} [ellipsisChars=...] The ellipsis character(s) to add to the end of `str`
+ *   when truncated. Defaults to '...'
+ */
+export function ellipsis(str, truncateLen, ellipsisChars) {
+    var ellipsisLength;
+    if (str.length > truncateLen) {
+        if (ellipsisChars == null) {
+            ellipsisChars = '…';
+            ellipsisLength = 3;
+        }
+        else {
+            ellipsisLength = ellipsisChars.length;
+        }
+        str = str.substring(0, truncateLen - ellipsisLength) + ellipsisChars;
+    }
+    return str;
+}
+/**
+ * Supports `Array.prototype.indexOf()` functionality for old IE (IE8 and below).
+ *
+ * @param {Array} arr The array to find an element of.
+ * @param {*} element The element to find in the array, and return the index of.
+ * @return {Number} The index of the `element`, or -1 if it was not found.
+ */
+export function indexOf(arr, element) {
+    if (Array.prototype.indexOf) {
+        return arr.indexOf(element);
+    }
+    else {
+        for (var i = 0, len = arr.length; i < len; i++) {
+            if (arr[i] === element)
+                return i;
+        }
+        return -1;
+    }
+}
+/**
+ * Removes array elements based on a filtering function. Mutates the input
+ * array.
+ *
+ * Using this instead of the ES5 Array.prototype.filter() function, to allow
+ * Autolinker compatibility with IE8, and also to prevent creating many new
+ * arrays in memory for filtering.
+ *
+ * @param {Array} arr The array to remove elements from. This array is
+ *   mutated.
+ * @param {Function} fn A function which should return `true` to
+ *   remove an element.
+ * @return {Array} The mutated input `arr`.
+ */
+export function remove(arr, fn) {
+    for (var i = arr.length - 1; i >= 0; i--) {
+        if (fn(arr[i]) === true) {
+            arr.splice(i, 1);
+        }
+    }
+}
+/**
+ * Performs the functionality of what modern browsers do when `String.prototype.split()` is called
+ * with a regular expression that contains capturing parenthesis.
+ *
+ * For example:
+ *
+ *     // Modern browsers:
+ *     "a,b,c".split( /(,)/ );  // --> [ 'a', ',', 'b', ',', 'c' ]
+ *
+ *     // Old IE (including IE8):
+ *     "a,b,c".split( /(,)/ );  // --> [ 'a', 'b', 'c' ]
+ *
+ * This method emulates the functionality of modern browsers for the old IE case.
+ *
+ * @param {String} str The string to split.
+ * @param {RegExp} splitRegex The regular expression to split the input `str` on. The splitting
+ *   character(s) will be spliced into the array, as in the "modern browsers" example in the
+ *   description of this method.
+ *   Note #1: the supplied regular expression **must** have the 'g' flag specified.
+ *   Note #2: for simplicity's sake, the regular expression does not need
+ *   to contain capturing parenthesis - it will be assumed that any match has them.
+ * @return {String[]} The split array of strings, with the splitting character(s) included.
+ */
+export function splitAndCapture(str, splitRegex) {
+    if (!splitRegex.global)
+        throw new Error("`splitRegex` must have the 'g' flag set");
+    var result = [], lastIdx = 0, match;
+    while (match = splitRegex.exec(str)) {
+        result.push(str.substring(lastIdx, match.index));
+        result.push(match[0]); // push the splitting char(s)
+        lastIdx = match.index + match[0].length;
+    }
+    result.push(str.substring(lastIdx));
+    return result;
+}
+/**
+ * Function that should never be called but is used to check that every
+ * enum value is handled using TypeScript's 'never' type.
+ */
+export function throwUnhandledCaseError(theValue) {
+    throw new Error("Unhandled case for value: '" + theValue + "'");
+}
+
+//# sourceMappingURL=utils.js.map