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/*******************************************************************************
* Copyright (c) 2006, 2009 Wind River Systems, Inc. and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Anton Leherbauer (Wind River Systems) - initial API and implementation
* Andrew Ferguson (Symbian)
*******************************************************************************/
package org.eclipse.cdt.internal.ui.editor.asm;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.cdt.core.model.IAsmLanguage;
import org.eclipse.cdt.internal.ui.text.CHeaderRule;
import org.eclipse.cdt.internal.ui.text.CWhitespaceRule;
import org.eclipse.cdt.internal.ui.text.PreprocessorRule;
import org.eclipse.cdt.internal.ui.text.util.CWordDetector;
import org.eclipse.cdt.ui.text.AbstractCScanner;
import org.eclipse.cdt.ui.text.ICColorConstants;
import org.eclipse.cdt.ui.text.ITokenStoreFactory;
import org.eclipse.core.runtime.Assert;
import org.eclipse.jface.text.rules.EndOfLineRule;
import org.eclipse.jface.text.rules.IRule;
import org.eclipse.jface.text.rules.IToken;
/**
* A preprocessor directive scanner for Asm source.
*
* @since 4.0
*/
public class AsmPreprocessorScanner extends AbstractCScanner {
/** Properties for tokens. */
private static final String[] fgTokenProperties = { ICColorConstants.C_SINGLE_LINE_COMMENT,
ICColorConstants.PP_DIRECTIVE, ICColorConstants.C_STRING, ICColorConstants.PP_HEADER,
ICColorConstants.PP_DEFAULT, };
private IAsmLanguage fAsmLanguage;
/**
* Create a preprocessor directive scanner.
* @param factory
* @param asmLanguage
*/
public AsmPreprocessorScanner(ITokenStoreFactory factory, IAsmLanguage asmLanguage) {
super(factory.createTokenStore(fgTokenProperties));
Assert.isNotNull(asmLanguage);
fAsmLanguage = asmLanguage;
setRules(createRules());
}
/**
* Creates rules used in this RulesBasedScanner
*/
protected List<IRule> createRules() {
List<IRule> rules = new ArrayList<IRule>();
IToken defaultToken = getToken(ICColorConstants.PP_DEFAULT);
IToken token;
// Add generic white space rule.
rules.add(new CWhitespaceRule(defaultToken));
token = getToken(ICColorConstants.PP_DIRECTIVE);
PreprocessorRule preprocessorRule = new PreprocessorRule(new CWordDetector(), defaultToken,
getToken(ICColorConstants.C_SINGLE_LINE_COMMENT));
String[] ppKeywords = fAsmLanguage.getPreprocessorKeywords();
for (int i = 0; i < ppKeywords.length; i++) {
String ppKeyword = ppKeywords[i];
if (ppKeyword.length() > 1) {
preprocessorRule.addWord(ppKeyword, token);
}
}
// add ## operator
preprocessorRule.addWord("##", token); //$NON-NLS-1$
rules.add(preprocessorRule);
token = getToken(ICColorConstants.PP_HEADER);
CHeaderRule headerRule = new CHeaderRule(token);
rules.add(headerRule);
token = getToken(ICColorConstants.C_SINGLE_LINE_COMMENT);
IRule lineCommentRule = new EndOfLineRule("#", token); //$NON-NLS-1$
rules.add(lineCommentRule);
// token = getToken(ICColorConstants.C_MULTI_LINE_COMMENT);
// IRule blockCommentRule = new MultiLineRule("/*", "*/", token, '\\'); //$NON-NLS-1$ //$NON-NLS-2$
// rules.add(blockCommentRule);
setDefaultReturnToken(defaultToken);
return rules;
}
}
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