| /* |
| * Copyright (C) 2007 The Android Open Source Project |
| * |
| * 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 java.util.regex; |
| |
| /** |
| * Holds the results of a successful match of a regular expression against a |
| * given string. Only used internally, thus sparsely documented (though the |
| * defining public interface has full documentation). |
| * |
| * @see java.util.regex.MatchResult |
| */ |
| class MatchResultImpl implements MatchResult { |
| |
| /** |
| * Holds the original input text. |
| */ |
| private String text; |
| |
| /** |
| * Holds the offsets of the groups in the input text. The first two |
| * elements specifiy start and end of the zero group, the next two specify |
| * group 1, and so on. |
| */ |
| private int[] offsets; |
| |
| MatchResultImpl(String text, int[] offsets) { |
| this.text = text; |
| this.offsets = offsets.clone(); |
| } |
| |
| public int end() { |
| return end(0); |
| } |
| |
| public int end(int group) { |
| return offsets[2 * group + 1]; |
| } |
| |
| public String group() { |
| return text.substring(start(), end()); |
| } |
| |
| public String group(int group) { |
| int from = offsets[group * 2]; |
| int to = offsets[(group * 2) + 1]; |
| if (from == -1 || to == -1) { |
| return null; |
| } else { |
| return text.substring(from, to); |
| } |
| } |
| |
| public int groupCount() { |
| return (offsets.length / 2) - 1; |
| } |
| |
| public int start() { |
| return start(0); |
| } |
| |
| public int start(int group) { |
| return offsets[2 * group]; |
| } |
| |
| } |