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package com.sun.xml.internal.rngom.digested;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
<grammar>
pattern, which is a collection of named patterns. Author: Kohsuke Kawaguchi (kk@kohsuke.org)
/**
* {@code <grammar>} pattern, which is a collection of named patterns.
*
* @author Kohsuke Kawaguchi (kk@kohsuke.org)
*/
public class DGrammarPattern extends DPattern implements Iterable<DDefine> {
private final Map<String,DDefine> patterns = new HashMap<String,DDefine>();
DPattern start;
Gets the start pattern.
/**
* Gets the start pattern.
*/
public DPattern getStart() {
return start;
}
Gets the named pattern by its name.
Returns:
null if not found.
/**
* Gets the named pattern by its name.
*
* @return
* null if not found.
*/
public DDefine get( String name ) {
return patterns.get(name);
}
DDefine getOrAdd( String name ) {
if(patterns.containsKey(name)) {
return get(name);
} else {
DDefine d = new DDefine(name);
patterns.put(name,d);
return d;
}
}
Iterates all the DDefine
s in this grammar. /**
* Iterates all the {@link DDefine}s in this grammar.
*/
public Iterator<DDefine> iterator() {
return patterns.values().iterator();
}
public boolean isNullable() {
return start.isNullable();
}
public <V> V accept( DPatternVisitor<V> visitor ) {
return visitor.onGrammar(this);
}
}