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//
// assembly: System
// namespace: System.Text.RegularExpressions
// file: Match.cs
//
// author: Dan Lewis (dlewis@gmx.co.uk)
// (c) 2002
// Copyright (C) 2005 Novell, Inc (http://www.novell.com)
//
// 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.
//
namespace System.Text.RegularExpressions {
[Serializable]
public partial class Match : Group {
public static Match Empty {
get { return empty; }
}
[MonoTODO ("not thread-safe")]
public static Match Synchronized (Match inner)
{
if (inner == null)
throw new ArgumentNullException ("inner");
return inner; // FIXME need to sync on machine access
}
public virtual GroupCollection Groups {
get { return groups; }
}
public Match NextMatch ()
{
if (this == Empty)
return Empty;
int scan_ptr = regex.RightToLeft ? Index : Index + Length;
// next match after an empty match: make sure scan ptr makes progress
if (Length == 0)
scan_ptr += regex.RightToLeft ? -1 : +1;
return machine.Scan (regex, Text, scan_ptr, text_length);
}
public virtual string Result (string replacement)
{
if (replacement == null)
throw new ArgumentNullException ("replacement");
if (machine == null)
throw new NotSupportedException ("Result cannot be called on failed Match.");
return machine.Result (replacement, this);
}
// internal
private Match ()
{
this.regex = null;
this.machine = null;
this.text_length = 0;
this.groups = new GroupCollection (1, 1);
groups.SetValue (this, 0);
}
internal Match (Regex regex, IMachine machine, string text, int text_length, int n_groups,
int index, int length) :
base (text, index, length) {
this.regex = regex;
this.machine = machine;
this.text_length = text_length;
}
internal Match (Regex regex, IMachine machine, string text, int text_length, int n_groups,
int index, int length, int n_caps) :
base (text, index, length, n_caps)
{
this.regex = regex;
this.machine = machine;
this.text_length = text_length;
this.groups = new GroupCollection (n_groups, regex.Gap);
groups.SetValue (this, 0);
}
internal Regex Regex {
get { return regex; }
}
// private
private Regex regex;
private IMachine machine;
private int text_length;
private GroupCollection groups;
private static Match empty = new Match ();
}
}
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