| /* |
| * 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.myfaces.buildtools.maven2.plugin.javascript.obfuscator.filters.compression; |
| |
| import org.apache.myfaces.buildtools.maven2.plugin.javascript.obfuscator.javascript15parser.AnnotatedToken; |
| |
| |
| public class WhitespaceHandler implements CompressionHandler |
| { |
| public WhitespaceHandler() |
| { |
| } |
| |
| public void handle(AnnotatedToken token, AnnotatedToken prevToken) |
| { |
| AnnotatedToken specialToken = token.getSpecialToken(); |
| AnnotatedToken prevSpecialToken = token; |
| boolean skipOne = (prevToken == null) ? false |
| : (prevToken.isWSSensitive() || |
| token.isInfixWSSensitive()); |
| |
| while (specialToken != null) |
| { |
| // remove whitespace. Keep one if the token is whitespace sensitive |
| if (specialToken.isWhiteSpace()) |
| { |
| if (skipOne) |
| { |
| skipOne = false; |
| specialToken.image = " "; |
| prevSpecialToken = specialToken; |
| specialToken = specialToken.getSpecialToken(); |
| } |
| else |
| { |
| prevSpecialToken.specialToken = specialToken.specialToken; |
| specialToken = specialToken.getSpecialToken(); |
| } |
| } |
| else |
| { |
| prevSpecialToken = specialToken; |
| specialToken = specialToken.getSpecialToken(); |
| } |
| } |
| } |
| } |