PatternData.jvm.cs :  » 2.6.4-mono-.net-core » System.Text » System » Text » RegularExpressions » C# / CSharp Open Source

//
// PatternData.jvm.cs
//
// Author:
//  Arina Itkes  <arinai@mainsoft.com>
//
// Copyright (C) 2007 Mainsoft, Inc.
//

//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//



using System;
using System.Collections.Generic;
using System.Text;
using System.Collections;
using java.util.regex;
using java.lang;

namespace System.Text.RegularExpressions{

  sealed class PatternData
  {
    readonly Pattern _javaPattern;
    readonly PatternGrouping _patternGrouping;

    #region Properties

    internal int [] NetToJavaNumbersMap {
      get { return _patternGrouping.NetToJavaNumbersMap; }
    }

    internal IDictionary GroupNameToNumberMap {
      get { return _patternGrouping.GroupNameToNumberMap; }
    }

    internal string [] GroupNumberToNameMap {
      get { return _patternGrouping.GroupNumberToNameMap; }
    }

    internal int [] JavaToNetGroupNumbersMap {
      get { return _patternGrouping.JavaToNetGroupNumbersMap; }
    }

    internal int GroupCount {
      get { return _patternGrouping.GroupCount; }
    }

    internal Pattern JavaPattern {
      get { return _javaPattern; }
    }

    internal bool SameGroupsFlag {
      get { return _patternGrouping.SameGroupsFlag; }
    }

    #endregion Properties

    #region Ctors

    internal PatternData (
      RegexOptions options,
      string reformattedPattern,
      PatternGrouping patternGrouping) {

      this._patternGrouping = patternGrouping;

      _javaPattern = Pattern.compile (reformattedPattern, GetJavaFlags (options));

      FillGroups (options);
    }


    #endregion Ctors

    #region Private methods

    private void FillGroups (RegexOptions options) {
      if (_patternGrouping.GroupCount >= 0) {
        return;
      }

      Matcher m = JavaPattern.matcher ((CharSequence) (object) String.Empty);

      if ((options & RegexOptions.ExplicitCapture) == RegexOptions.ExplicitCapture) {
        _patternGrouping.SetGroups (0, m.groupCount());
      }
      else {
        _patternGrouping.SetGroups (m.groupCount(), m.groupCount ());
      }
    }

    private int GetJavaFlags (RegexOptions options) {
      int flags = Pattern.UNIX_LINES; // .NET treats only the "\n" character as newline, UNIX_LINES implies the same behavior in Java.

      if ((options & RegexOptions.IgnoreCase) == RegexOptions.IgnoreCase) {
        flags |= Pattern.CASE_INSENSITIVE;
      }
      if ((options & RegexOptions.Multiline) == RegexOptions.Multiline) {
        flags |= Pattern.MULTILINE;
      }
      if ((options & RegexOptions.Singleline) == RegexOptions.Singleline) {
        flags |= Pattern.DOTALL;
      }
      if ((options & RegexOptions.IgnorePatternWhitespace) == RegexOptions.IgnorePatternWhitespace) {
        flags |= Pattern.COMMENTS;
      }
      return flags;
    }

    #endregion Private methods
  }
}