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Irony - .NET Compiler Construction Kit

, 4 Jan 2008
Introduction to Irony - a new technology of parser/compiler construction for .NET.
irony_article.zip
Irony_article
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#region License
/* **********************************************************************************
 * Copyright (c) Roman Ivantsov
 * This source code is subject to terms and conditions of the MIT License
 * for Irony. A copy of the license can be found in the License.txt file
 * at the root of this distribution. 
 * By using this source code in any fashion, you are agreeing to be bound by the terms of the 
 * MIT License.
 * You must not remove this notice from this software.
 * **********************************************************************************/
#endregion

using System;
using System.Collections.Generic;
using System.Text;

namespace Irony.Compiler {

  public class TerminalList : List<Terminal> { }

  public class Terminal : BnfElement {

    public Terminal(string name)  : base(name) {
    }
    public Terminal(string name, TokenCategory category)  : this(name) {
      _category = category;
    }
    public Terminal(string name, TokenMatchMode matchMode) : this(name) {
      this.MatchMode = matchMode;
    }
    public TokenMatchMode MatchMode {
      get { return _matchMode; }
      set { _matchMode = value; }
    } TokenMatchMode _matchMode = TokenMatchMode.ByValueThenByType;

    //Terminals are not nullable
    public override bool Nullable {
      get { return false; }
      set { }
    }
    public TokenCategory Category {
      get { return _category; }
      protected set { _category = value; }
    } TokenCategory _category = TokenCategory.Content;

    protected Grammar Grammar  {
      get {return _grammar;}
    } Grammar  _grammar;

    #region virtuals
    public virtual void Init(Grammar grammar) {
      _grammar = grammar;
    }
    public virtual Token TryMatch(CompilerContext context, ISourceStream source) {
      return null;
    }
    //Prefixes are used for quick search for possible matching terminal(s) using current character in the input stream.
    // A terminal might declare no prefixes. In this case, the terminal is tried for match for any current input character. 
    public virtual IList<string> GetPrefixes() {
      return null;
    }
    #endregion

  }//class



}

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License

This article, along with any associated source code and files, is licensed under The MIT License

About the Author

Roman Ivantsov
Architect Pulsar Informatics, Inc
United States United States
No Biography provided

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