buildSrc/src/main/java/cc/squirreljme/plugin/util/Base64Alphabet.java

   1 // -*- Mode: Java; indent-tabs-mode: t; tab-width: 4 -*-
   2 // ---------------------------------------------------------------------------
   3 // SquirrelJME
   4 //     Copyright (C) Stephanie Gawroriski <xer@multiphasicapps.net>
   5 // ---------------------------------------------------------------------------
   6 // SquirrelJME is under the GNU General Public License v3+, or later.
   7 // See license.mkd for licensing and copyright information.
   8 // ---------------------------------------------------------------------------
   9
  10 package cc.squirreljme.plugin.util;
  11
  12 /**
  13  * This represents the alphabet that is used for Base64.
  14  *
  15  * @since 2018/03/05
  16  */
  17 public enum Base64Alphabet
  18 {
  19         /** The basic and MIME alphabet. */
  20         BASIC('A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
  21                 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
  22                 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',
  23                 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
  24                 '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '+', '/', '='),
  25
  26         /** The URL alphabet. */
  27         URL('A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
  28                 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
  29                 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',
  30                 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
  31                 '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '-', '_', '='),
  32
  33         /** End. */
  34         ;
  35
  36         /** The alphabet for the characters. */
  37         final char[] _alphabet;
  38
  39         /**
  40          * Initializes the alphabet.
  41          *
  42          * @param __alphabet The alphabet.
  43          * @throws NullPointerException On null arguments.
  44          * @since 2018/03/05
  45          */
  46         Base64Alphabet(char... __alphabet)
  47                 throws NullPointerException
  48         {
  49                 if (__alphabet == null)
  50                         throw new NullPointerException("NARG");
  51
  52                 this._alphabet = __alphabet;
  53         }
  54 }
  55