/*
* 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 com.stevesoft.pat.Regex;
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.BlockCodeToken;
import org.rythmengine.internal.parser.ParserBase;
import org.rythmengine.utils.S;
import java.util.Locale;
/**
* Parse @locale("zh", "CN) {...}
*/
public class LocaleParser extends KeywordParserFactory {
@Override
public Keyword keyword() {
return Keyword.LOCALE;
}
public IParser create(final IContext ctx) {
return new ParserBase(ctx) {
public Token go() {
Regex r = reg(dialect());
if (!r.search(remain())) return null;
final String matched = r.stringMatched();
if (matched.startsWith("\n") || matched.endsWith("\n")) {
ctx.getCodeBuilder().addBuilder(new Token.StringToken("\n", ctx));
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));
}
}
}
step(matched.length());
String s = r.stringMatched(1);
s = S.stripBrace(s);
if (S.isEmpty(s)) {
raiseParseException("Error parsing @locale statement. locale parameter expected");
}
String code = s;
Locale locale = (Locale)ctx.getEngine().eval(String.format("org.rythmengine.utils.Eval.locale(%s)", code));
ctx.pushLocale(locale);
s = String.format("__ctx.pushLocale(org.rythmengine.utils.Eval.locale(%s));", s);
return new BlockCodeToken(s, ctx()) {
@Override
public void openBlock() {
}
@Override
public String closeBlock() {
ctx.popLocale();
return "__ctx.popLocale();";
}
};
}
};
}
@Override
protected String patternStr() {
return "^\\n?[ \\t\\x0B\\f]*%s%s\\s*((?@()))[\\s]*\\{?[ \\t\\x0B\\f]*\\n?";
}
}