mcs/class/System/System.Text.RegularExpressions/PatternDataBuilder.jvm.cs

   1 //
   2 // PatternDataBuilder.jvm.cs
   3 //
   4 // Author:
   5 //      Arina Itkes  <arinai@mainsoft.com>
   6 //
   7 // Copyright (C) 2007 Mainsoft, Inc.
   8 //
   9
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30
  31 using System;
  32 using System.Collections.Generic;
  33 using System.Text;
  34 using System.Collections;
  35
  36 namespace System.Text.RegularExpressions
  37 {
  38         sealed class PatternDataBuilder
  39         {
  40                 private static readonly List<IConstructType> _monoConstructTypesList = new List<IConstructType>();
  41                 private static readonly List<IConstructType> _jvmOrderedConstructTypesList = new List<IConstructType> ();
  42
  43                 static PatternDataBuilder () {
  44                         FillMonoConstructTypesList ();
  45                         FillJvmOrderedConstructTypesList ();
  46                 }
  47
  48                 internal static PatternData GetPatternData (string pattern, RegexOptions options) {
  49
  50                         foreach (IConstructType construct in _monoConstructTypesList) {
  51                                 if (construct.HasConstruct (pattern, options)) {
  52                                         return null;
  53                                 }
  54                         }
  55
  56                         PatternGrouping patternGrouping = new PatternGrouping ();
  57                         string reformattedPattern = pattern;
  58
  59                         foreach (IConstructType construct in _jvmOrderedConstructTypesList) {
  60
  61                                 reformattedPattern = construct.Reformat (options, reformattedPattern, patternGrouping);
  62
  63                                 if (reformattedPattern == null)
  64                                         return null;
  65                         }
  66
  67                         return new PatternData (options, reformattedPattern, patternGrouping);
  68                 }
  69
  70                 private static void FillMonoConstructTypesList () {
  71                         _monoConstructTypesList.Add (new CategoryConstruct ());
  72                         _monoConstructTypesList.Add (new BalancingGroupConstruct ());
  73                         _monoConstructTypesList.Add (new AlternationBackReferenceConstruct ());
  74                         _monoConstructTypesList.Add (new AlternationExpressionConstruct ());
  75                         _monoConstructTypesList.Add (new RightToLeftOptionConstruct ());
  76                         _monoConstructTypesList.Add (new InlineExplicitCaptureConstruct ());
  77                         _monoConstructTypesList.Add (new LookBehindWithUndefinedLength ());
  78                         _monoConstructTypesList.Add (new NotAllowedConstruct ());
  79                 }
  80
  81                 private static void FillJvmOrderedConstructTypesList () {
  82
  83                         //The order is meaningful
  84                         _jvmOrderedConstructTypesList.Add (new CommentsConstruct ());
  85                         _jvmOrderedConstructTypesList.Add (new NamingGroupsConstruct ());
  86                         _jvmOrderedConstructTypesList.Add (new ReplacedRegularCharacterConstruct ());
  87                         _jvmOrderedConstructTypesList.Add (new BackReferenceConstruct ());
  88                 }
  89         }
  90 }