| /* |
| * 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.codehaus.groovy.antlr; |
| |
| import antlr.LexerSharedInputState; |
| |
| /** |
| * GRECLIPSE-805 Support for unicode escape sequences |
| * @author Andrew Eisenberg |
| */ |
| public class UnicodeLexerSharedInputState extends LexerSharedInputState { |
| private final UnicodeEscapingReader escapingReader; |
| |
| private int prevUnescape; |
| |
| public UnicodeLexerSharedInputState(UnicodeEscapingReader in) { |
| super(in); |
| escapingReader = in; |
| } |
| |
| @Override |
| public int getColumn() { |
| prevUnescape = escapingReader.getUnescapedUnicodeColumnCount(); |
| return super.getColumn() + prevUnescape; |
| } |
| |
| @Override |
| public int getTokenStartColumn() { |
| if (line == tokenStartLine) { |
| return super.getTokenStartColumn() + escapingReader.getUnescapedUnicodeColumnCount(); |
| } else { |
| return super.getTokenStartColumn() + prevUnescape; |
| } |
| } |
| } |