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/*******************************************************************************
* Copyright (c) 2015, 2018 Open Analytics NV and others.
*
* This program and the accompanying materials are made
* available under the terms of the Eclipse Public License 2.0
* which is available at https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*******************************************************************************/
package org.eclipse.linuxtools.internal.docker.editor.scanner;
import org.eclipse.jface.text.TextAttribute;
import org.eclipse.jface.text.rules.EndOfLineRule;
import org.eclipse.jface.text.rules.ICharacterScanner;
import org.eclipse.jface.text.rules.IRule;
import org.eclipse.jface.text.rules.IToken;
import org.eclipse.jface.text.rules.RuleBasedScanner;
import org.eclipse.jface.text.rules.SingleLineRule;
import org.eclipse.jface.text.rules.Token;
import org.eclipse.linuxtools.internal.docker.editor.syntax.SyntaxColors;
public class DockerInstructionScanner extends RuleBasedScanner {
public DockerInstructionScanner() {
IToken instructionToken = new Token(new TextAttribute(SyntaxColors.getInstructionColor()));
IToken stringToken = new Token(new TextAttribute(SyntaxColors.getStringColor()));
IToken varToken = new Token(new TextAttribute(SyntaxColors.getVariableColor()));
IToken commentToken = new Token(new TextAttribute(SyntaxColors.getCommentColor()));
IRule[] rules = new IRule[5];
rules[0] = new InstructionWordRule(instructionToken);
rules[1] = new SingleLineRule("\"", "\"", stringToken, '\\');
rules[2] = new SingleLineRule("\'", "\'", stringToken, '\\');
rules[3] = new SingleLineRule("${", "}", varToken, '\\');
rules[4] = new EndOfLineRule("#", commentToken) {
@Override
public IToken evaluate(ICharacterScanner scanner, boolean resume) {
if (getColumn() > 0)
return Token.UNDEFINED;
return super.evaluate(scanner, resume);
}
};
setRules(rules);
}
}
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