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/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / whidbey / NetFXspW7 / ndp / fx / src / Regex / System / Text / RegularExpressions / RegexMatchCollection.cs / 1 / RegexMatchCollection.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- // The MatchCollection lists the successful matches that // result when searching a string for a regular expression. namespace System.Text.RegularExpressions { using System.Collections; /* * This collection returns a sequence of successful match results, either * from GetMatchCollection() or GetExecuteCollection(). It stops when the * first failure is encountered (it does not return the failed match). */ ////// [ Serializable() ] public class MatchCollection : ICollection { internal Regex _regex; internal ArrayList _matches; internal bool _done; internal String _input; internal int _beginning; internal int _length; internal int _startat; internal int _prevlen; private static int infinite = 0x7FFFFFFF; /* * Nonpublic constructor */ internal MatchCollection(Regex regex, String input, int beginning, int length, int startat) { if (startat < 0 || startat > input.Length) throw new ArgumentOutOfRangeException("startat", SR.GetString(SR.BeginIndexNotNegative)); _regex = regex; _input = input; _beginning = beginning; _length = length; _startat = startat; _prevlen = -1; _matches = new ArrayList(); _done = false; } internal Match GetMatch(int i) { if (i < 0) return null; if (_matches.Count > i) return(Match)_matches[i]; if (_done) return null; Match match; do { match = _regex.Run(false, _prevlen, _input, _beginning, _length, _startat); if (!match.Success) { _done = true; return null; } _matches.Add(match); _prevlen = match._length; _startat = match._textpos; } while (_matches.Count <= i); return match; } ////// Represents the set of names appearing as capturing group /// names in a regular expression. /// ////// public int Count { get { if (_done) return _matches.Count; GetMatch(infinite); return _matches.Count; } } ////// Returns the number of captures. /// ////// public Object SyncRoot { get { return this; } } ///[To be supplied.] ////// public bool IsSynchronized { get { return false; } } ///[To be supplied.] ////// public bool IsReadOnly { get { return true; } } ///[To be supplied.] ////// public virtual Match this[int i] { get { Match match; match = GetMatch(i); if (match == null) throw new ArgumentOutOfRangeException("i"); return match; } } ////// Returns the ith Match in the collection. /// ////// public void CopyTo(Array array, int arrayIndex) { // property access to force computation of whole array int count = Count; _matches.CopyTo(array, arrayIndex); } ////// Copies all the elements of the collection to the given array /// starting at the given index. /// ////// public IEnumerator GetEnumerator() { return new MatchEnumerator(this); } } /* * This non-public enumerator lists all the group matches. * Should it be public? */ [ Serializable() ] internal class MatchEnumerator : IEnumerator { internal MatchCollection _matchcoll; internal Match _match = null; internal int _curindex; internal bool _done; /* * Nonpublic constructor */ internal MatchEnumerator(MatchCollection matchcoll) { _matchcoll = matchcoll; } /* * Advance to the next match */ public bool MoveNext() { if (_done) return false; _match = _matchcoll.GetMatch(_curindex++); if (_match == null) { _done = true; return false; } return true; } /* * The current match */ public Object Current { get { if (_match == null) throw new InvalidOperationException(SR.GetString(SR.EnumNotStarted)); return _match; } } /* * Position before the first item */ public void Reset() { _curindex = 0; _done = false; _match = null; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ ///// Provides an enumerator in the same order as Item[i]. /// ///// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- // The MatchCollection lists the successful matches that // result when searching a string for a regular expression. namespace System.Text.RegularExpressions { using System.Collections; /* * This collection returns a sequence of successful match results, either * from GetMatchCollection() or GetExecuteCollection(). It stops when the * first failure is encountered (it does not return the failed match). */ ////// [ Serializable() ] public class MatchCollection : ICollection { internal Regex _regex; internal ArrayList _matches; internal bool _done; internal String _input; internal int _beginning; internal int _length; internal int _startat; internal int _prevlen; private static int infinite = 0x7FFFFFFF; /* * Nonpublic constructor */ internal MatchCollection(Regex regex, String input, int beginning, int length, int startat) { if (startat < 0 || startat > input.Length) throw new ArgumentOutOfRangeException("startat", SR.GetString(SR.BeginIndexNotNegative)); _regex = regex; _input = input; _beginning = beginning; _length = length; _startat = startat; _prevlen = -1; _matches = new ArrayList(); _done = false; } internal Match GetMatch(int i) { if (i < 0) return null; if (_matches.Count > i) return(Match)_matches[i]; if (_done) return null; Match match; do { match = _regex.Run(false, _prevlen, _input, _beginning, _length, _startat); if (!match.Success) { _done = true; return null; } _matches.Add(match); _prevlen = match._length; _startat = match._textpos; } while (_matches.Count <= i); return match; } ////// Represents the set of names appearing as capturing group /// names in a regular expression. /// ////// public int Count { get { if (_done) return _matches.Count; GetMatch(infinite); return _matches.Count; } } ////// Returns the number of captures. /// ////// public Object SyncRoot { get { return this; } } ///[To be supplied.] ////// public bool IsSynchronized { get { return false; } } ///[To be supplied.] ////// public bool IsReadOnly { get { return true; } } ///[To be supplied.] ////// public virtual Match this[int i] { get { Match match; match = GetMatch(i); if (match == null) throw new ArgumentOutOfRangeException("i"); return match; } } ////// Returns the ith Match in the collection. /// ////// public void CopyTo(Array array, int arrayIndex) { // property access to force computation of whole array int count = Count; _matches.CopyTo(array, arrayIndex); } ////// Copies all the elements of the collection to the given array /// starting at the given index. /// ////// public IEnumerator GetEnumerator() { return new MatchEnumerator(this); } } /* * This non-public enumerator lists all the group matches. * Should it be public? */ [ Serializable() ] internal class MatchEnumerator : IEnumerator { internal MatchCollection _matchcoll; internal Match _match = null; internal int _curindex; internal bool _done; /* * Nonpublic constructor */ internal MatchEnumerator(MatchCollection matchcoll) { _matchcoll = matchcoll; } /* * Advance to the next match */ public bool MoveNext() { if (_done) return false; _match = _matchcoll.GetMatch(_curindex++); if (_match == null) { _done = true; return false; } return true; } /* * The current match */ public Object Current { get { if (_match == null) throw new InvalidOperationException(SR.GetString(SR.EnumNotStarted)); return _match; } } /* * Position before the first item */ public void Reset() { _curindex = 0; _done = false; _match = null; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007./// Provides an enumerator in the same order as Item[i]. /// ///
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