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- /* ***** BEGIN LICENSE BLOCK *****
- * Distributed under the BSD license:
- *
- * Copyright (c) 2010, Ajax.org B.V.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * * Neither the name of Ajax.org B.V. nor the
- * names of its contributors may be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL AJAX.ORG B.V. BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * ***** END LICENSE BLOCK ***** */
- define(function(require, exports, module) {
- "use strict";
- exports.last = function(a) {
- return a[a.length - 1];
- };
- exports.stringReverse = function(string) {
- return string.split("").reverse().join("");
- };
- exports.stringRepeat = function (string, count) {
- var result = '';
- while (count > 0) {
- if (count & 1)
- result += string;
- if (count >>= 1)
- string += string;
- }
- return result;
- };
- var trimBeginRegexp = /^\s\s*/;
- var trimEndRegexp = /\s\s*$/;
- exports.stringTrimLeft = function (string) {
- return string.replace(trimBeginRegexp, '');
- };
- exports.stringTrimRight = function (string) {
- return string.replace(trimEndRegexp, '');
- };
- exports.copyObject = function(obj) {
- var copy = {};
- for (var key in obj) {
- copy[key] = obj[key];
- }
- return copy;
- };
- exports.copyArray = function(array){
- var copy = [];
- for (var i=0, l=array.length; i<l; i++) {
- if (array[i] && typeof array[i] == "object")
- copy[i] = this.copyObject( array[i] );
- else
- copy[i] = array[i];
- }
- return copy;
- };
- exports.deepCopy = function deepCopy(obj) {
- if (typeof obj !== "object" || !obj)
- return obj;
- var copy;
- if (Array.isArray(obj)) {
- copy = [];
- for (var key = 0; key < obj.length; key++) {
- copy[key] = deepCopy(obj[key]);
- }
- return copy;
- }
- var cons = obj.constructor;
- if (cons === RegExp)
- return obj;
-
- copy = cons();
- for (var key in obj) {
- copy[key] = deepCopy(obj[key]);
- }
- return copy;
- };
- exports.arrayToMap = function(arr) {
- var map = {};
- for (var i=0; i<arr.length; i++) {
- map[arr[i]] = 1;
- }
- return map;
- };
- exports.createMap = function(props) {
- var map = Object.create(null);
- for (var i in props) {
- map[i] = props[i];
- }
- return map;
- };
- /*
- * splice out of 'array' anything that === 'value'
- */
- exports.arrayRemove = function(array, value) {
- for (var i = 0; i <= array.length; i++) {
- if (value === array[i]) {
- array.splice(i, 1);
- }
- }
- };
- exports.escapeRegExp = function(str) {
- return str.replace(/([.*+?^${}()|[\]\/\\])/g, '\\$1');
- };
- exports.escapeHTML = function(str) {
- return str.replace(/&/g, "&").replace(/"/g, """).replace(/'/g, "'").replace(/</g, "<");
- };
- exports.getMatchOffsets = function(string, regExp) {
- var matches = [];
- string.replace(regExp, function(str) {
- matches.push({
- offset: arguments[arguments.length-2],
- length: str.length
- });
- });
- return matches;
- };
- /* deprecated */
- exports.deferredCall = function(fcn) {
- var timer = null;
- var callback = function() {
- timer = null;
- fcn();
- };
- var deferred = function(timeout) {
- deferred.cancel();
- timer = setTimeout(callback, timeout || 0);
- return deferred;
- };
- deferred.schedule = deferred;
- deferred.call = function() {
- this.cancel();
- fcn();
- return deferred;
- };
- deferred.cancel = function() {
- clearTimeout(timer);
- timer = null;
- return deferred;
- };
-
- deferred.isPending = function() {
- return timer;
- };
- return deferred;
- };
- exports.delayedCall = function(fcn, defaultTimeout) {
- var timer = null;
- var callback = function() {
- timer = null;
- fcn();
- };
- var _self = function(timeout) {
- if (timer == null)
- timer = setTimeout(callback, timeout || defaultTimeout);
- };
- _self.delay = function(timeout) {
- timer && clearTimeout(timer);
- timer = setTimeout(callback, timeout || defaultTimeout);
- };
- _self.schedule = _self;
- _self.call = function() {
- this.cancel();
- fcn();
- };
- _self.cancel = function() {
- timer && clearTimeout(timer);
- timer = null;
- };
- _self.isPending = function() {
- return timer;
- };
- return _self;
- };
- });
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