vnfmarket/src/main/webapp/vnfmarket/node_modules/socket.io-client/lib/vendor/web-socket-js/flash-src/com/hurlant/util/Hex.as

   1 /**\r
   2  * Hex\r
   3  * \r
   4  * Utility class to convert Hex strings to ByteArray or String types.\r
   5  * Copyright (c) 2007 Henri Torgemane\r
   6  * \r
   7  * See LICENSE.txt for full license information.\r
   8  */\r
   9 package com.hurlant.util\r
  10 {\r
  11         import flash.utils.ByteArray;\r
  12         \r
  13         public class Hex\r
  14         {\r
  15                 /**\r
  16                  * Support straight hex, or colon-laced hex.\r
  17                  * (that means 23:03:0e:f0, but *NOT* 23:3:e:f0)\r
  18                  * Whitespace characters are ignored.\r
  19                  */\r
  20                 public static function toArray(hex:String):ByteArray {\r
  21                         hex = hex.replace(/\s|:/gm,'');\r
  22                         var a:ByteArray = new ByteArray;\r
  23                         if (hex.length&1==1) hex="0"+hex;\r
  24                         for (var i:uint=0;i<hex.length;i+=2) {\r
  25                                 a[i/2] = parseInt(hex.substr(i,2),16);\r
  26                         }\r
  27                         return a;\r
  28                 }\r
  29                 \r
  30                 public static function fromArray(array:ByteArray, colons:Boolean=false):String {\r
  31                         var s:String = "";\r
  32                         for (var i:uint=0;i<array.length;i++) {\r
  33                                 s+=("0"+array[i].toString(16)).substr(-2,2);\r
  34                                 if (colons) {\r
  35                                         if (i<array.length-1) s+=":";\r
  36                                 }\r
  37                         }\r
  38                         return s;\r
  39                 }\r
  40                 \r
  41                 /**\r
  42                  * \r
  43                  * @param hex\r
  44                  * @return a UTF-8 string decoded from hex\r
  45                  * \r
  46                  */\r
  47                 public static function toString(hex:String):String {\r
  48                         var a:ByteArray = toArray(hex);\r
  49                         return a.readUTFBytes(a.length);\r
  50                 }\r
  51                 \r
  52                 \r
  53                 /**\r
  54                  * \r
  55                  * @param str\r
  56                  * @return a hex string encoded from the UTF-8 string str\r
  57                  * \r
  58                  */\r
  59                 public static function fromString(str:String, colons:Boolean=false):String {\r
  60                         var a:ByteArray = new ByteArray;\r
  61                         a.writeUTFBytes(str);\r
  62                         return fromArray(a, colons);\r
  63                 }\r
  64                 \r
  65         }\r
  66 }