#region License
//=============================================================================
// Vici Core - Productivity Library for .NET 3.5
//
// Copyright (c) 2008-2010 Philippe Leybaert
//
// 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.
//=============================================================================
#endregion
using System;
namespace Vici.Core.Parser{
internal class TokenMatcher
{
private bool _stillValid = true;
private readonly ITokenProcessor _tokenProcessor;
private readonly ITokenMatcher _tokenMatcher;
public TokenMatcher(ITokenMatcher tokenMatcher)
{
_tokenProcessor = tokenMatcher.CreateTokenProcessor();
_tokenMatcher = tokenMatcher;
}
public ITokenMatcher Matcher
{
get { return _tokenMatcher; }
}
public void Reset()
{
_stillValid = true;
_tokenProcessor.ResetState();
}
public TokenizerState Feed(char c, string fullExpression, int currentIndex)
{
if (!_stillValid)
return TokenizerState.Fail;
TokenizerState state = _tokenProcessor.ProcessChar(c, fullExpression, currentIndex);
if (state != TokenizerState.Valid)
_stillValid = false;
return state;
}
public override string ToString()
{
string s = "";
if (_stillValid)
s += "StillValid/";
s += _tokenProcessor == null ? "(null)" : _tokenProcessor.GetType().Name;
return s;
}
public string TranslateToken(string text)
{
return _tokenMatcher.TranslateToken(text, _tokenProcessor);
}
}
}
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