/*******************************************************************************
* Copyright (c) 2015 Bruno Medeiros and other Contributors.
* 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:
* Bruno Medeiros - initial API and implementation
*******************************************************************************/
package com.github.rustdt.tooling.lexer;
import melnorme.lang.tooling.parser.lexer.IPredicateLexingRule;
import melnorme.lang.utils.parse.ICharacterReader;
import melnorme.lang.utils.parse.LexingUtils;
public class RustAttributeRule extends LexingUtils implements IPredicateLexingRule {
@Override
public boolean doEvaluate(ICharacterReader reader) {
if(!reader.tryConsume("#[") && !reader.tryConsume("#![")) {
return false;
}
while(!reader.tryConsume("]")) {
if(reader.lookaheadIsEOS()) {
return true;
}
if(reader.tryConsume('"')) {
consumeDelimitedString(reader);
continue;
}
reader.consume();
}
return true;
}
protected void consumeDelimitedString(ICharacterReader reader) {
advanceDelimitedString(reader, '"', '\\');
}
}