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package org.netbeans.lib.lexer.batch;
import java.io.Reader;
import java.util.Set;
import org.netbeans.api.lexer.Language;
import org.netbeans.lib.lexer.LexerInputOperation;
import org.netbeans.api.lexer.InputAttributes;
import org.netbeans.api.lexer.TokenId;
import org.netbeans.lib.lexer.TokenHierarchyOperation;
/**
* Token list for situation when the input text must be copied.
* It works together with SkimTokenList instances that act
* as a filter over this token list.
*
* @author Miloslav Metelka
* @version 1.00
*/
public final class CopyTextTokenList<T extends TokenId> extends BatchTokenList<T> {
/** Either reader or char sequence */
private final Object input;
public CopyTextTokenList(TokenHierarchyOperation<?,T> tokenHierarchyOperation, Reader inputReader,
Language<T> language, Set<T> skipTokenIds, InputAttributes inputAttributes) {
super(tokenHierarchyOperation, language, skipTokenIds, inputAttributes);
this.input = inputReader;
}
public CopyTextTokenList(TokenHierarchyOperation<?,T> tokenHierarchyOperation, CharSequence inputText,
Language<T> language, Set<T> skipTokenIds, InputAttributes inputAttributes) {
super(tokenHierarchyOperation, language, skipTokenIds, inputAttributes);
this.input = inputText;
}
public int childTokenOffset(int rawOffset) {
// Cluster should be used so this method should never be called
throwShouldNeverBeCalled();
return 0; // never reached
}
public char childTokenCharAt(int rawOffset, int index) {
// Cluster should be used so this method should never be called
throwShouldNeverBeCalled();
return ' '; // never reached
}
private void throwShouldNeverBeCalled() {
throw new IllegalStateException("Should never be called"); // NOI18N
}
protected LexerInputOperation<T> createLexerInputOperation() {
return (input instanceof Reader)
? new SkimLexerInputOperation<T>(this, (Reader)input)
: new SkimLexerInputOperation<T>(this, (CharSequence)input);
}
}
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