/*
* Copyright (C) 2013 The Rythm Engine project
* Gelin Luo <greenlaw110(at)gmail.com>
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.rythmengine.internal.parser.build_in;
import org.rythmengine.internal.IContext;
import org.rythmengine.internal.IParser;
import org.rythmengine.internal.Keyword;
import org.rythmengine.internal.Token;
import org.rythmengine.internal.parser.CodeToken;
import org.rythmengine.internal.parser.IRemoveLeadingLineBreakAndSpaces;
import org.rythmengine.internal.parser.ParserBase;
import org.rythmengine.utils.TextBuilder;
import com.stevesoft.pat.Regex;
/**
* Created by IntelliJ IDEA.
* User: luog
* Date: 19/02/12
* Time: 5:28 PM
* To change this template use File | Settings | File Templates.
*/
public class DebugParser extends KeywordParserFactory implements IRemoveLeadingLineBreakAndSpaces {
@Override
public Keyword keyword() {
return Keyword.DEBUG;
}
public IParser create(final IContext ctx) {
return new ParserBase(ctx) {
public Token go() {
Regex r = reg(dialect());
if (!r.search(remain())) {
raiseParseException("error parsing @debug, correct usage: @debug(\"msg\", args...)");
}
String matched = r.stringMatched();
step(matched.length());
boolean leadLB = matched.startsWith("\n"), afterLB = matched.endsWith("\n");
if (leadLB || afterLB) {
ctx.getCodeBuilder().addBuilder(new Token.StringToken("\n", ctx));
if (!(leadLB && afterLB)) {
Regex r0 = new Regex("\\n([ \\t\\x0B\\f]*).*");
if (r0.search(matched)) {
String blank = r0.stringMatched(1);
if (blank.length() > 0) {
ctx.getCodeBuilder().addBuilder(new Token.StringToken(blank, ctx));
}
}
}
} else {
Regex r0 = new Regex("([ \\t\\x0B\\f]*).*");
if (r0.search(matched)) {
String blank = r0.stringMatched(1);
if (blank.length() > 0) {
ctx.getCodeBuilder().addBuilder(new Token.StringToken(blank, ctx));
}
}
}
String s = new TextBuilder().p("__logger.debug").p(r.stringMatched(2)).p(";").toString();
return new CodeToken(s, ctx());
}
};
}
@Override
protected String patternStr() {
return "(^\\n?[ \\t\\x0B\\f]*%s%s\\s*((?@()))[\\n]?)";
}
}