/*
* Copyright 2013 The authors
* Licensed 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 com.intellij.lang.ognl.highlight;
import com.intellij.lang.ognl.OgnlTypes;
import com.intellij.lang.ognl.lexer.OgnlLexer;
import com.intellij.lexer.LayeredLexer;
import com.intellij.lexer.StringLiteralLexer;
import com.intellij.psi.tree.IElementType;
/**
* Adds additional syntax highlighting layers.
* <p/>
* <ul>
* <li>string/character literal escape sequences.</li>
* </ul>
*
* @author Yann Cébron
*/
public class OgnlHighlightingLexer extends LayeredLexer {
public OgnlHighlightingLexer() {
super(new OgnlLexer());
final StringLiteralLexer stringLiteralLexer = new StringLiteralLexer('\"', OgnlTypes.STRING_LITERAL);
registerSelfStoppingLayer(stringLiteralLexer,
new IElementType[]{OgnlTypes.STRING_LITERAL},
IElementType.EMPTY_ARRAY);
final StringLiteralLexer characterLiteralLexer = new StringLiteralLexer('\'', OgnlTypes.CHARACTER_LITERAL);
registerSelfStoppingLayer(characterLiteralLexer,
new IElementType[]{OgnlTypes.CHARACTER_LITERAL},
IElementType.EMPTY_ARRAY);
}
}