mirror of https://github.com/tasks/tasks
Goodbye apache commons-lang, you made my apk too big
Tim Su
13 years ago
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c1a5bbdb66
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/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.todoroo.astrid.producteev.api;
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import java.io.IOException;
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import java.io.StringWriter;
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import java.io.Writer;
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/**
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* <p>Escapes and unescapes <code>String</code>s for
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* Java, Java Script, HTML, XML, and SQL.</p>
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*
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* @author Apache Jakarta Turbine
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* @author Purple Technology
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* @author <a href="mailto:alex@purpletech.com">Alexander Day Chaffee</a>
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* @author Antony Riley
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* @author Helge Tesgaard
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* @author <a href="sean@boohai.com">Sean Brown</a>
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* @author <a href="mailto:ggregory@seagullsw.com">Gary Gregory</a>
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* @author Phil Steitz
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* @author Pete Gieser
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* @since 2.0
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* @version $Id: StringEscapeUtils.java 2696 2007-06-20 13:24:53Z damencho $
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*/
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@SuppressWarnings({"nls"})
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public class StringEscapeUtils {
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/**
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* <p><code>StringEscapeUtils</code> instances should NOT be constructed in
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* standard programming.</p>
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*
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* <p>Instead, the class should be used as:
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* <pre>StringEscapeUtils.escapeJava("foo");</pre></p>
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*
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* <p>This constructor is public to permit tools that require a JavaBean
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* instance to operate.</p>
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*/
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public StringEscapeUtils() {
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super();
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}
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//-----------------------------------------------------------------------
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/**
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* <p>Unescapes a string containing entity escapes to a string
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* containing the actual Unicode characters corresponding to the
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* escapes. Supports HTML 4.0 entities.</p>
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*
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* <p>For example, the string "&lt;Fran&ccedil;ais&gt;"
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* will become "<Français>"</p>
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*
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* <p>If an entity is unrecognized, it is left alone, and inserted
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* verbatim into the result string. e.g. "&gt;&zzzz;x" will
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* become ">&zzzz;x".</p>
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*
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* @param str the <code>String</code> to unescape, may be null
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* @return a new unescaped <code>String</code>, <code>null</code> if null string input
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* @see #escapeHtml(Writer, String)
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*/
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public static String unescapeHtml(String str) {
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if (str == null) {
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return null;
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}
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try {
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StringWriter writer = new StringWriter ((int)(str.length() * 1.5));
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unescapeHtml(writer, str);
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return writer.toString();
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} catch (IOException e) {
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//assert false;
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//should be impossible
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e.printStackTrace();
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return null;
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}
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}
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/**
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* <p>Unescapes a string containing entity escapes to a string
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* containing the actual Unicode characters corresponding to the
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* escapes. Supports HTML 4.0 entities.</p>
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*
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* <p>For example, the string "&lt;Fran&ccedil;ais&gt;"
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* will become "<Français>"</p>
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*
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* <p>If an entity is unrecognized, it is left alone, and inserted
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* verbatim into the result string. e.g. "&gt;&zzzz;x" will
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* become ">&zzzz;x".</p>
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*
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* @param writer the writer receiving the unescaped string, not null
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* @param string the <code>String</code> to unescape, may be null
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* @throws IllegalArgumentException if the writer is null
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* @throws IOException if an IOException occurs
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* @see #escapeHtml(String)
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*/
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public static void unescapeHtml(Writer writer, String string) throws IOException {
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if (writer == null ) {
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throw new IllegalArgumentException ("The Writer must not be null.");
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}
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if (string == null) {
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return;
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}
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Entities.HTML40.unescape(writer, string);
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}
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}
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