diff options
Diffstat (limited to 'webcam/com/adobe/utils/StringUtil.as')
| -rw-r--r-- | webcam/com/adobe/utils/StringUtil.as | 257 |
1 files changed, 257 insertions, 0 deletions
diff --git a/webcam/com/adobe/utils/StringUtil.as b/webcam/com/adobe/utils/StringUtil.as new file mode 100644 index 0000000..493fbd0 --- /dev/null +++ b/webcam/com/adobe/utils/StringUtil.as @@ -0,0 +1,257 @@ +/* + Adobe Systems Incorporated(r) Source Code License Agreement + Copyright(c) 2005 Adobe Systems Incorporated. All rights reserved. + + Please read this Source Code License Agreement carefully before using + the source code. + + Adobe Systems Incorporated grants to you a perpetual, worldwide, non-exclusive, + no-charge, royalty-free, irrevocable copyright license, to reproduce, + prepare derivative works of, publicly display, publicly perform, and + distribute this source code and such derivative works in source or + object code form without any attribution requirements. + + The name "Adobe Systems Incorporated" must not be used to endorse or promote products + derived from the source code without prior written permission. + + You agree to indemnify, hold harmless and defend Adobe Systems Incorporated from and + against any loss, damage, claims or lawsuits, including attorney's + fees that arise or result from your use or distribution of the source + code. + + THIS SOURCE CODE IS PROVIDED "AS IS" AND "WITH ALL FAULTS", WITHOUT + ANY TECHNICAL SUPPORT OR ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, + BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + FOR A PARTICULAR PURPOSE ARE DISCLAIMED. ALSO, THERE IS NO WARRANTY OF + NON-INFRINGEMENT, TITLE OR QUIET ENJOYMENT. IN NO EVENT SHALL MACROMEDIA + OR ITS SUPPLIERS 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 SOURCE CODE, EVEN IF + ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +package com.adobe.utils +{ + + /** + * Class that contains static utility methods for manipulating Strings. + * + * @langversion ActionScript 3.0 + * @playerversion Flash 9.0 + * @tiptext + */ + public class StringUtil + { + + + /** + * Does a case insensitive compare or two strings and returns true if + * they are equal. + * + * @param s1 The first string to compare. + * + * @param s2 The second string to compare. + * + * @returns A boolean value indicating whether the strings' values are + * equal in a case sensitive compare. + * + * @langversion ActionScript 3.0 + * @playerversion Flash 9.0 + * @tiptext + */ + public static function stringsAreEqual(s1:String, s2:String, + caseSensitive:Boolean):Boolean + { + if(caseSensitive) + { + return (s1 == s2); + } + else + { + return (s1.toUpperCase() == s2.toUpperCase()); + } + } + + /** + * Removes whitespace from the front and the end of the specified + * string. + * + * @param input The String whose beginning and ending whitespace will + * will be removed. + * + * @returns A String with whitespace removed from the begining and end + * + * @langversion ActionScript 3.0 + * @playerversion Flash 9.0 + * @tiptext + */ + public static function trim(input:String):String + { + return StringUtil.ltrim(StringUtil.rtrim(input)); + } + + /** + * Removes whitespace from the front of the specified string. + * + * @param input The String whose beginning whitespace will will be removed. + * + * @returns A String with whitespace removed from the begining + * + * @langversion ActionScript 3.0 + * @playerversion Flash 9.0 + * @tiptext + */ + public static function ltrim(input:String):String + { + var size:Number = input.length; + for(var i:Number = 0; i < size; i++) + { + if(input.charCodeAt(i) > 32) + { + return input.substring(i); + } + } + return ""; + } + + /** + * Removes whitespace from the end of the specified string. + * + * @param input The String whose ending whitespace will will be removed. + * + * @returns A String with whitespace removed from the end + * + * @langversion ActionScript 3.0 + * @playerversion Flash 9.0 + * @tiptext + */ + public static function rtrim(input:String):String + { + var size:Number = input.length; + for(var i:Number = size; i > 0; i--) + { + if(input.charCodeAt(i - 1) > 32) + { + return input.substring(0, i); + } + } + + return ""; + } + + /** + * Determines whether the specified string begins with the spcified prefix. + * + * @param input The string that the prefix will be checked against. + * + * @param prefix The prefix that will be tested against the string. + * + * @returns True if the string starts with the prefix, false if it does not. + * + * @langversion ActionScript 3.0 + * @playerversion Flash 9.0 + * @tiptext + */ + public static function beginsWith(input:String, prefix:String):Boolean + { + return (prefix == input.substring(0, prefix.length)); + } + + /** + * Determines whether the specified string ends with the spcified suffix. + * + * @param input The string that the suffic will be checked against. + * + * @param prefix The suffic that will be tested against the string. + * + * @returns True if the string ends with the suffix, false if it does not. + * + * @langversion ActionScript 3.0 + * @playerversion Flash 9.0 + * @tiptext + */ + public static function endsWith(input:String, suffix:String):Boolean + { + return (suffix == input.substring(input.length - suffix.length)); + } + + /** + * Removes all instances of the remove string in the input string. + * + * @param input The string that will be checked for instances of remove + * string + * + * @param remove The string that will be removed from the input string. + * + * @returns A String with the remove string removed. + * + * @langversion ActionScript 3.0 + * @playerversion Flash 9.0 + * @tiptext + */ + public static function remove(input:String, remove:String):String + { + return StringUtil.replace(input, remove, ""); + } + + /** + * Replaces all instances of the replace string in the input string + * with the replaceWith string. + * + * @param input The string that instances of replace string will be + * replaces with removeWith string. + * + * @param replace The string that will be replaced by instances of + * the replaceWith string. + * + * @param replaceWith The string that will replace instances of replace + * string. + * + * @returns A new String with the replace string replaced with the + * replaceWith string. + * + * @langversion ActionScript 3.0 + * @playerversion Flash 9.0 + * @tiptext + */ + public static function replace(input:String, replace:String, replaceWith:String):String + { + //change to StringBuilder + var sb:String = new String(); + var found:Boolean = false; + + var sLen:Number = input.length; + var rLen:Number = replace.length; + + for (var i:Number = 0; i < sLen; i++) + { + if(input.charAt(i) == replace.charAt(0)) + { + found = true; + for(var j:Number = 0; j < rLen; j++) + { + if(!(input.charAt(i + j) == replace.charAt(j))) + { + found = false; + break; + } + } + + if(found) + { + sb += replaceWith; + i = i + (rLen - 1); + continue; + } + } + sb += input.charAt(i); + } + //TODO : if the string is not found, should we return the original + //string? + return sb; + } + } +}
\ No newline at end of file |