3 // namespace: System.Text.RegularExpressions
6 // author: Dan Lewis (dlewis@gmx.co.uk)
10 // Permission is hereby granted, free of charge, to any person obtaining
11 // a copy of this software and associated documentation files (the
12 // "Software"), to deal in the Software without restriction, including
13 // without limitation the rights to use, copy, modify, merge, publish,
14 // distribute, sublicense, and/or sell copies of the Software, and to
15 // permit persons to whom the Software is furnished to do so, subject to
16 // the following conditions:
18 // The above copyright notice and this permission notice shall be
19 // included in all copies or substantial portions of the Software.
21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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32 namespace System.Text.RegularExpressions {
35 public class Match : Group {
36 public static Match Empty {
40 public static Match Synchronized (Match inner)
42 return inner; // FIXME need to sync on machine access
45 public virtual GroupCollection Groups {
46 get { return groups; }
49 public Match NextMatch ()
54 int scan_ptr = regex.RightToLeft ? Index : Index + Length;
56 // next match after an empty match: make sure scan ptr makes progress
59 scan_ptr += regex.RightToLeft ? -1 : +1;
61 return machine.Scan (regex, Text, scan_ptr, text_length);
64 public virtual string Result (string replacement)
66 return ReplacementEvaluator.Evaluate (replacement, this);
71 private Match () : base ()
77 this.groups = new GroupCollection (1);
78 groups.SetValue (this, 0);
81 internal Match (Regex regex, IMachine machine, string text, int text_length, int n_groups,
82 int index, int length, int n_caps) :
83 base (text, index, length, n_caps)
86 this.machine = machine;
87 this.text_length = text_length;
89 this.groups = new GroupCollection (n_groups);
90 groups.SetValue (this, 0);
93 internal Regex Regex {
100 private IMachine machine;
101 private int text_length;
102 private GroupCollection groups;
104 private static Match empty = new Match ();