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- /// Spart License (zlib/png)
- ///
- ///
- /// Copyright (c) 2003 Jonathan de Halleux
- ///
- /// This software is provided 'as-is', without any express or implied warranty.
- /// In no event will the authors be held liable for any damages arising from
- /// the use of this software.
- ///
- /// Permission is granted to anyone to use this software for any purpose,
- /// including commercial applications, and to alter it and redistribute it
- /// freely, subject to the following restrictions:
- ///
- /// 1. The origin of this software must not be misrepresented; you must not
- /// claim that you wrote the original software. If you use this software in a
- /// product, an acknowledgment in the product documentation would be
- /// appreciated but is not required.
- ///
- /// 2. Altered source versions must be plainly marked as such, and must not be
- /// misrepresented as being the original software.
- ///
- /// 3. This notice may not be removed or altered from any source distribution.
- ///
- /// Author: Jonathan de Halleuxnamespace Spart.Parsers.NonTerminal
- namespace Spart.Parsers.NonTerminal
- {
- using System;
- using Spart.Scanners;
-
- /// <summary>
- /// NonTerminal parser abstract class
- /// </summary>
- public abstract class NonTerminalParser : Parser
- {
- private String m_ID;
- /// <summary>
- /// Default constructor
- /// </summary>
- public NonTerminalParser()
- :base()
- {
- ID = GetHashCode().ToString();
- }
- /// <summary>
- /// Rule ID, used for debugging
- /// </summary>
- public string ID
- {
- get
- {
- return m_ID;
- }
- set
- {
- if( m_ID != value )
- m_ID = value;
- }
- }
- /// <summary>
- /// Pre parse event
- /// </summary>
- public event PreParseEventHandler PreParse;
- /// <summary>
- /// Post parse event
- /// </summary>
- public event PostParseEventHandler PostParse;
- /// <summary>
- /// Preparse event caller
- /// </summary>
- /// <param name="scan"></param>
- public virtual void OnPreParse(IScanner scan)
- {
- if (PreParse != null)
- PreParse(this, new PreParseEventArgs(this,scan) );
- }
- /// <summary>
- /// Post parse event caller
- /// </summary>
- /// <param name="match"></param>
- /// <param name="scan"></param>
- public virtual void OnPostParse(ParserMatch match, IScanner scan)
- {
- if (PostParse != null)
- PostParse(this,new PostParseEventArgs(match,this,scan));
- }
- /// <summary>
- /// Adds event handlers
- /// </summary>
- /// <param name="context"></param>
- public void AddContext(IParserContext context)
- {
- PreParse+=new PreParseEventHandler(context.PreParse);
- PostParse+=new PostParseEventHandler(context.PostParse);
- }
- /// <summary>
- /// Removes event handlers
- /// </summary>
- /// <param name="context"></param>
- public void RemoveContext(IParserContext context)
- {
- PreParse-=new PreParseEventHandler(context.PreParse);
- PostParse-=new PostParseEventHandler(context.PostParse);
- }
-
- public override Parser Clone()
- {
- NonTerminalParser clone = base.Clone() as NonTerminalParser;
- return clone;
- }
- }
- }
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