| /* |
| * 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.commons.text.translate; |
| |
| import java.io.IOException; |
| import java.io.Writer; |
| |
| /** |
| * Helper subclass to CharSequenceTranslator to remove unpaired surrogates. |
| * |
| * @since 1.0 |
| */ |
| public class UnicodeUnpairedSurrogateRemover extends CodePointTranslator { |
| /** |
| * Implementation of translate that throws out unpaired surrogates. |
| * {@inheritDoc} |
| */ |
| @Override |
| public boolean translate(final int codepoint, final Writer out) throws IOException { |
| if (codepoint >= Character.MIN_SURROGATE && codepoint <= Character.MAX_SURROGATE) { |
| // It's a surrogate. Write nothing and say we've translated. |
| return true; |
| } |
| // It's not a surrogate. Don't translate it. |
| return false; |
| } |
| } |
| |