/*******************************************************************************
* Copyright (c) 2008, 2017 Phil Muldoon and others.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Phil Muldoon <pkmuldoon@picobot.org> - initial API and implementation.
*******************************************************************************/
package org.eclipse.linuxtools.internal.systemtap.ui.ide.editors.stp;
import org.eclipse.jface.resource.ColorRegistry;
import org.eclipse.jface.text.TextAttribute;
import org.eclipse.jface.text.rules.BufferedRuleBasedScanner;
import org.eclipse.jface.text.rules.EndOfLineRule;
import org.eclipse.jface.text.rules.IRule;
import org.eclipse.jface.text.rules.IToken;
import org.eclipse.jface.text.rules.IWordDetector;
import org.eclipse.jface.text.rules.MultiLineRule;
import org.eclipse.jface.text.rules.SingleLineRule;
import org.eclipse.jface.text.rules.Token;
import org.eclipse.jface.text.rules.WhitespaceRule;
import org.eclipse.jface.text.rules.WordRule;
import org.eclipse.swt.SWT;
import org.eclipse.ui.PlatformUI;
public class STPElementScanner extends BufferedRuleBasedScanner {
private String[] keywordList = { "probe", "for", "else", //$NON-NLS-1$//$NON-NLS-2$//$NON-NLS-3$
"foreach", "exit", "printf", "in", //$NON-NLS-1$//$NON-NLS-2$//$NON-NLS-3$//$NON-NLS-4$
"return", "break", "global", "next", //$NON-NLS-1$//$NON-NLS-2$//$NON-NLS-3$//$NON-NLS-4$
"while", "if", "delete", "#include", //$NON-NLS-1$//$NON-NLS-2$//$NON-NLS-3$//$NON-NLS-4$
"function", "do", "print", "error", //$NON-NLS-1$//$NON-NLS-2$//$NON-NLS-3$//$NON-NLS-4$
"log", "printd", "printdln", "println", //$NON-NLS-1$//$NON-NLS-2$//$NON-NLS-3$//$NON-NLS-4$
"sprint", "sprintf", "system", "warn" }; //$NON-NLS-1$//$NON-NLS-2$//$NON-NLS-3$//$NON-NLS-4$
/**
*
* Build Element scanner for Syntax Highlighting for Systemtap Editor
*
*/
public STPElementScanner() {
ColorRegistry colorRegistry = PlatformUI.getWorkbench().getThemeManager().getCurrentTheme().getColorRegistry();
IToken defaultToken = new Token(new TextAttribute(colorRegistry.get(STPColorConstants.DEFAULT)));
IToken keywordToken = new Token(new TextAttribute(colorRegistry.get(STPColorConstants.KEYWORD), null, SWT.BOLD));
IToken commentToken = new Token(new TextAttribute(colorRegistry.get(STPColorConstants.COMMENT)));
IToken stringToken = new Token(new TextAttribute(colorRegistry.get(STPColorConstants.STRING)));
// Build keyword scanner
WordRule keywordsRule = new WordRule(new IWordDetector() {
@Override
public boolean isWordStart(char c) {
// probe kernel.function("schedule") is a valid name in
// Systemtap, but we do not want to highlight the function
// here as a keyword. Same with foo.return and so on.
if (c == '.') {
return true;
}
return Character.isJavaIdentifierStart(c);
}
@Override
public boolean isWordPart(char c) {
// Set isWordStart for . rule.
if (c == '.') {
return true;
}
return Character.isJavaIdentifierPart(c);
}
}, defaultToken, true);
for (int i=0; i<keywordList.length; i++)
keywordsRule.addWord(keywordList[i], keywordToken);
setRules(new IRule[] { new MultiLineRule("/*", "*/", commentToken), //$NON-NLS-1$//$NON-NLS-2$
new EndOfLineRule("/*", commentToken), //$NON-NLS-1$
new EndOfLineRule("#", commentToken), //$NON-NLS-1$
new EndOfLineRule("//", commentToken), //$NON-NLS-1$
new EndOfLineRule("#if", defaultToken), //$NON-NLS-1$
new EndOfLineRule("#else", defaultToken), //$NON-NLS-1$
new EndOfLineRule("#endif", defaultToken), //$NON-NLS-1$
new EndOfLineRule("#define", defaultToken), //$NON-NLS-1$
new SingleLineRule("\"", "\"", stringToken, '\\'), //$NON-NLS-1$ //$NON-NLS-2$
new SingleLineRule("'", "'", stringToken, '\\'), //$NON-NLS-1$//$NON-NLS-2$
keywordsRule, new WhitespaceRule(c -> Character.isWhitespace(c)), });
}
}