/*
* Copyright (c) 1998-2010 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
* Free SoftwareFoundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.relaxng.pattern;
import com.caucho.relaxng.RelaxException;
import com.caucho.util.L10N;
import java.util.HashMap;
import java.util.Iterator;
/**
* Relax grammar pattern
*/
public class GrammarPattern extends Pattern {
protected static final L10N L = new L10N(GrammarPattern.class);
private Pattern _start;
private int _id;
private HashMap<String,Pattern> _definitions = new HashMap<String,Pattern>();
/**
* Creates a new grammar pattern.
*/
public GrammarPattern()
{
}
/**
* Returns the Relax schema name.
*/
public String getTagName()
{
return "grammar";
}
/**
* Returns the start pattern.
*/
public Pattern getStart()
{
return _start;
}
/**
* Sets the start element
*/
public void setStart(Pattern start)
throws RelaxException
{
if (_start != null)
throw new RelaxException(L.l("Duplicate <start> in <grammar>. The <grammar> element can only have one <start>."));
_start = start;
}
/**
* Generates a name.
*/
public String generateId()
{
return "__caucho_" + _id++;
}
/**
* Start definition.
*/
public void setDefinition(String name, Pattern pattern)
{
_definitions.put(name, pattern);
}
/**
* Gets a definition.
*/
public Pattern getDefinition(String name)
{
return _definitions.get(name);
}
/**
* Merges an include.
*/
public void mergeInclude(GrammarPattern grammar)
{
_definitions.putAll(grammar._definitions);
}
/**
* Returns equals.
*/
public boolean equals(Object o)
{
return this == o;
}
/**
* Debugging.
*/
public String toString()
{
return "GrammarPattern[" + _start + "]";
}
}