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

   1 //
   2 // PatternData.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
  32
  33 using System;
  34 using System.Collections.Generic;
  35 using System.Text;
  36 using System.Collections;
  37 using java.util.regex;
  38 using java.lang;
  39
  40 namespace System.Text.RegularExpressions
  41 {
  42
  43         sealed class PatternData
  44         {
  45                 readonly Pattern _javaPattern;
  46                 readonly PatternGrouping _patternGrouping;
  47
  48                 #region Properties
  49
  50                 internal int [] NetToJavaNumbersMap {
  51                         get { return _patternGrouping.NetToJavaNumbersMap; }
  52                 }
  53
  54                 internal IDictionary GroupNameToNumberMap {
  55                         get { return _patternGrouping.GroupNameToNumberMap; }
  56                 }
  57
  58                 internal string [] GroupNumberToNameMap {
  59                         get { return _patternGrouping.GroupNumberToNameMap; }
  60                 }
  61
  62                 internal int [] JavaToNetGroupNumbersMap {
  63                         get { return _patternGrouping.JavaToNetGroupNumbersMap; }
  64                 }
  65
  66                 internal int GroupCount {
  67                         get { return _patternGrouping.GroupCount; }
  68                 }
  69
  70                 internal Pattern JavaPattern {
  71                         get { return _javaPattern; }
  72                 }
  73
  74                 internal bool SameGroupsFlag {
  75                         get { return _patternGrouping.SameGroupsFlag; }
  76                 }
  77
  78                 #endregion Properties
  79
  80                 #region Ctors
  81
  82                 internal PatternData (
  83                         RegexOptions options,
  84                         string reformattedPattern,
  85                         PatternGrouping patternGrouping) {
  86
  87                         this._patternGrouping = patternGrouping;
  88
  89                         _javaPattern = Pattern.compile (reformattedPattern, GetJavaFlags (options));
  90
  91                         FillGroups (options);
  92                 }
  93
  94
  95                 #endregion Ctors
  96
  97                 #region Private methods
  98
  99                 private void FillGroups (RegexOptions options) {
 100                         if (_patternGrouping.GroupCount >= 0) {
 101                                 return;
 102                         }
 103
 104                         Matcher m = JavaPattern.matcher ((CharSequence) (object) String.Empty);
 105
 106                         if ((options & RegexOptions.ExplicitCapture) == RegexOptions.ExplicitCapture) {
 107                                 _patternGrouping.SetGroups (0, m.groupCount());
 108                         }
 109                         else {
 110                                 _patternGrouping.SetGroups (m.groupCount(), m.groupCount ());
 111                         }
 112                 }
 113
 114                 private int GetJavaFlags (RegexOptions options) {
 115                         int flags = Pattern.UNIX_LINES; // .NET treats only the "\n" character as newline, UNIX_LINES implies the same behavior in Java.
 116
 117                         if ((options & RegexOptions.IgnoreCase) == RegexOptions.IgnoreCase) {
 118                                 flags |= Pattern.CASE_INSENSITIVE;
 119                         }
 120                         if ((options & RegexOptions.Multiline) == RegexOptions.Multiline) {
 121                                 flags |= Pattern.MULTILINE;
 122                         }
 123                         if ((options & RegexOptions.Singleline) == RegexOptions.Singleline) {
 124                                 flags |= Pattern.DOTALL;
 125                         }
 126                         if ((options & RegexOptions.IgnorePatternWhitespace) == RegexOptions.IgnorePatternWhitespace) {
 127                                 flags |= Pattern.COMMENTS;
 128                         }
 129                         return flags;
 130                 }
 131
 132                 #endregion Private methods
 133         }
 134 }