| // Copyright (C) 2009 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 com.google.gwtexpui.safehtml.client; |
| |
| |
| public abstract class MultiLineStyle { |
| public MultiLineStyle isStart(String line) { |
| return null; |
| } |
| |
| public boolean isEnd(String line) { |
| return false; |
| } |
| |
| public String restart(String line) { |
| return line; |
| } |
| |
| public String unrestart(String line) { |
| return line; |
| } |
| |
| static class Simple extends MultiLineStyle { |
| private final String begin; |
| private final String end; |
| |
| Simple(String b, String e) { |
| begin = b; |
| end = e; |
| } |
| |
| @Override |
| public MultiLineStyle isStart(String line) { |
| final int lastBegin = line.lastIndexOf(begin); |
| if (lastBegin < 0) { |
| return null; |
| } |
| |
| final int lastEnd = line.lastIndexOf(end); |
| return lastBegin > lastEnd ? this : null; |
| } |
| |
| @Override |
| public boolean isEnd(String line) { |
| final int firstEnd = line.indexOf(end); |
| if (firstEnd < 0) { |
| return false; |
| } |
| |
| final int lastBegin = line.lastIndexOf(begin); |
| return lastBegin < firstEnd; |
| } |
| |
| @Override |
| public String restart(String line) { |
| return begin + "\n" + line; |
| } |
| |
| @Override |
| public String unrestart(String formattedHtml) { |
| final int beginPos = formattedHtml.indexOf(begin); |
| final String lineBegin = formattedHtml.substring(0, beginPos); |
| String lineEnd = formattedHtml.substring(beginPos + begin.length()); |
| if (lineEnd.startsWith("<br")) { |
| lineEnd = lineEnd.substring(lineEnd.indexOf('>') + 1); |
| } |
| return lineBegin + lineEnd; |
| } |
| } |
| } |