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// Copyright (c) 2011-2013 AlphaSierraPapa for the SharpDevelop Team
//
// 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.Linq;
namespace ICSharpCode.NRefactory.PatternMatching
{
/// <summary>
/// Matches the last entry in the specified named group.
/// </summary>
public class Backreference : Pattern
{
readonly string referencedGroupName;
public string ReferencedGroupName {
get { return referencedGroupName; }
}
public Backreference(string referencedGroupName)
{
if (referencedGroupName == null)
throw new ArgumentNullException("referencedGroupName");
this.referencedGroupName = referencedGroupName;
}
public override bool DoMatch(INode other, Match match)
{
return match.Get(referencedGroupName).Last().IsMatch(other);
}
}
}
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