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

   1 //
   2 // Regex.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.Runtime.Serialization;
  32
  33 namespace System.Text.RegularExpressions
  34 {
  35         public partial class Regex : ISerializable
  36         {
  37                 IMachineFactory _monoFactory;
  38                 readonly object _monoFactoryLock = new object ();
  39
  40                 internal bool SameGroupNamesFlag {
  41                         get {
  42                                 return GetJvmMachine ().PatternData.SameGroupsFlag;
  43                         }
  44                 }
  45
  46                 internal IMachine GetMonoMachine () {
  47
  48                         lock (_monoFactoryLock) {
  49                                 if (_monoFactory != null)
  50                                         return _monoFactory.NewInstance ();
  51
  52                                 _monoFactory = CreateMachineFactory (this.pattern, this.Options);
  53                         }
  54
  55                         return _monoFactory.NewInstance ();
  56                 }
  57
  58                 internal JvmReMachine GetJvmMachine () {
  59                         if (machineFactory is InterpreterFactory)
  60                                 return null;
  61
  62                         return ((JvmReMachineFactory) machineFactory).GetMachine ();
  63                 }
  64
  65                 internal int GetJavaNumberByNetNumber (int netNumber) {
  66                         if (netNumber < 0 || netNumber > group_count) {
  67                                 return netNumber;
  68                         }
  69
  70                         return GetJvmMachine ().PatternData.NetToJavaNumbersMap [netNumber];
  71                 }
  72
  73                 private void Init () {
  74
  75                         this.machineFactory = cache.Lookup (this.pattern, this.roptions);
  76
  77                         if (this.machineFactory != null) {
  78
  79                                 this.group_count = this.machineFactory.GroupCount;
  80                                 this.mapping = this.machineFactory.Mapping;
  81                                 this._groupNumberToNameMap = this.machineFactory.NamesMapping;
  82
  83                                 return;
  84                         }
  85
  86                         PatternData patternData = null;
  87                         string errorMessage = null;
  88                         try{
  89                                 patternData = PatternDataBuilder.GetPatternData(pattern, roptions);
  90                         }catch(Exception e){
  91 #if DEBUG
  92                                 throw;
  93 #endif
  94                                 errorMessage = "Creating pattern on JVM failed for pattern " + pattern
  95                                 + "\n" + e.Message;
  96                         }
  97
  98                         if (patternData == null){
  99                                 InitNewRegex();
 100                                 if (errorMessage != null)
 101                                         Console.WriteLine (errorMessage);
 102                         }
 103                         else
 104                                 InitJvmRegex (patternData);
 105
 106                         cache.Add (this.pattern, this.roptions, this.machineFactory);
 107                         return;
 108                 }
 109
 110                 private void InitJvmRegex (PatternData patternData) {
 111
 112                         machineFactory = new JvmReMachineFactory (patternData);
 113                         this.group_count = this.machineFactory.GroupCount;
 114                         this.mapping = this.machineFactory.Mapping;
 115                         this._groupNumberToNameMap = this.machineFactory.NamesMapping;
 116                 }
 117
 118         }
 119 }