3 // namespace: System.Text.RegularExpressions
6 // author: Dan Lewis (dlewis@gmx.co.uk)
8 // Copyright (C) 2005 Novell, Inc (http://www.novell.com)
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,
22 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
25 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
26 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
27 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
30 namespace System.Text.RegularExpressions {
33 public class Match : Group {
34 public static Match Empty {
38 [MonoTODO ("not thread-safe")]
39 public static Match Synchronized (Match inner)
42 throw new ArgumentNullException ("inner");
43 return inner; // FIXME need to sync on machine access
46 public virtual GroupCollection Groups {
47 get { return groups; }
50 public Match NextMatch ()
55 int scan_ptr = regex.RightToLeft ? Index : Index + Length;
57 // next match after an empty match: make sure scan ptr makes progress
60 scan_ptr += regex.RightToLeft ? -1 : +1;
62 return machine.Scan (regex, Text, scan_ptr, text_length);
65 public virtual string Result (string replacement)
67 if (replacement == null)
68 throw new ArgumentNullException ("replacement");
69 if (replacement.Length == 0)
70 throw new NotSupportedException ();
72 return ReplacementEvaluator.Evaluate (replacement, this);
83 this.groups = new GroupCollection (1);
84 groups.SetValue (this, 0);
87 internal Match (Regex regex, IMachine machine, string text, int text_length, int n_groups,
88 int index, int length, int n_caps) :
89 base (text, index, length, n_caps)
92 this.machine = machine;
93 this.text_length = text_length;
95 this.groups = new GroupCollection (n_groups);
96 groups.SetValue (this, 0);
99 internal Regex Regex {
100 get { return regex; }
106 private IMachine machine;
107 private int text_length;
108 private GroupCollection groups;
110 private static Match empty = new Match ();