| /** |
| * 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.apache.activemq.protobuf.compiler; |
| |
| import org.apache.activemq.protobuf.compiler.TextFormat.InvalidEscapeSequence; |
| import org.apache.activemq.protobuf.compiler.parser.ParseException; |
| import org.apache.activemq.protobuf.compiler.parser.Token; |
| |
| public class ParserSupport { |
| |
| public static String decodeString(Token token) throws ParseException { |
| |
| // StringBuilder sb = new StringBuilder(); |
| // for (int i = 1; i < value.length() - 1; i++) { |
| // char c = value.charAt(i); |
| // if (c == '\'') { |
| // if( i+1 < (value.length() - 1) ) { |
| // char e = value.charAt(i+1); |
| // switch(e) { |
| // case 'a': |
| // sb.append((char)0x07); |
| // break; |
| // case 'b': |
| // sb.append("\b"); |
| // break; |
| // case 'f': |
| // sb.append("\f"); |
| // break; |
| // case 'n': |
| // sb.append("\n"); |
| // break; |
| // case 'r': |
| // sb.append("\r"); |
| // break; |
| // case 't': |
| // sb.append("\t"); |
| // break; |
| // case 'v': |
| // sb.append((char)0x0b); |
| // break; |
| // case '\\': |
| // sb.append("\\"); |
| // break; |
| // case '\'': |
| // sb.append("'"); |
| // break; |
| // case '\"': |
| // sb.append("\""); |
| // break; |
| // default: |
| // sb.append(e); |
| // break; |
| // } |
| // } else { |
| // throw new RuntimeException("Invalid string litteral: "+value); |
| // } |
| // } |
| // sb.append(c); |
| // } |
| // return sb.toString(); |
| |
| try { |
| return TextFormat.unescapeText(token.image.substring(1, token.image.length()-1)); |
| } catch (InvalidEscapeSequence e) { |
| throw new ParseException("Invalid string litteral at line " + token.next.beginLine + ", column " + token.next.beginColumn+": "+e.getMessage()); |
| } |
| } |
| |
| } |