| /* |
| * Copyright (C) 2007 The Guava Authors |
| * |
| * 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.common.base; |
| |
| import com.google.common.annotations.GwtCompatible; |
| import com.google.common.annotations.GwtIncompatible; |
| import java.nio.charset.Charset; |
| |
| /** |
| * Contains constant definitions for the six standard {@link Charset} instances, which are |
| * guaranteed to be supported by all Java platform implementations. |
| * |
| * <p>Assuming you're free to choose, note that <b>{@link #UTF_8} is widely preferred</b>. |
| * |
| * <p>See the Guava User Guide article on <a |
| * href="https://github.com/google/guava/wiki/StringsExplained#charsets">{@code Charsets}</a>. |
| * |
| * @author Mike Bostock |
| * @since 1.0 |
| */ |
| @GwtCompatible(emulated = true) |
| public final class Charsets { |
| private Charsets() {} |
| |
| /** |
| * US-ASCII: seven-bit ASCII, the Basic Latin block of the Unicode character set (ISO646-US). |
| * |
| * <p><b>Note for Java 7 and later:</b> this constant should be treated as deprecated; use {@link |
| * java.nio.charset.StandardCharsets#US_ASCII} instead. |
| * |
| */ |
| @GwtIncompatible // Charset not supported by GWT |
| public static final Charset US_ASCII = Charset.forName("US-ASCII"); |
| |
| /** |
| * ISO-8859-1: ISO Latin Alphabet Number 1 (ISO-LATIN-1). |
| * |
| * <p><b>Note for Java 7 and later:</b> this constant should be treated as deprecated; use {@link |
| * java.nio.charset.StandardCharsets#ISO_8859_1} instead. |
| * |
| */ |
| public static final Charset ISO_8859_1 = Charset.forName("ISO-8859-1"); |
| |
| /** |
| * UTF-8: eight-bit UCS Transformation Format. |
| * |
| * <p><b>Note for Java 7 and later:</b> this constant should be treated as deprecated; use {@link |
| * java.nio.charset.StandardCharsets#UTF_8} instead. |
| * |
| */ |
| public static final Charset UTF_8 = Charset.forName("UTF-8"); |
| |
| /** |
| * UTF-16BE: sixteen-bit UCS Transformation Format, big-endian byte order. |
| * |
| * <p><b>Note for Java 7 and later:</b> this constant should be treated as deprecated; use {@link |
| * java.nio.charset.StandardCharsets#UTF_16BE} instead. |
| * |
| */ |
| @GwtIncompatible // Charset not supported by GWT |
| public static final Charset UTF_16BE = Charset.forName("UTF-16BE"); |
| |
| /** |
| * UTF-16LE: sixteen-bit UCS Transformation Format, little-endian byte order. |
| * |
| * <p><b>Note for Java 7 and later:</b> this constant should be treated as deprecated; use {@link |
| * java.nio.charset.StandardCharsets#UTF_16LE} instead. |
| * |
| */ |
| @GwtIncompatible // Charset not supported by GWT |
| public static final Charset UTF_16LE = Charset.forName("UTF-16LE"); |
| |
| /** |
| * UTF-16: sixteen-bit UCS Transformation Format, byte order identified by an optional byte-order |
| * mark. |
| * |
| * <p><b>Note for Java 7 and later:</b> this constant should be treated as deprecated; use {@link |
| * java.nio.charset.StandardCharsets#UTF_16} instead. |
| * |
| */ |
| @GwtIncompatible // Charset not supported by GWT |
| public static final Charset UTF_16 = Charset.forName("UTF-16"); |
| |
| /* |
| * Please do not add new Charset references to this class, unless those character encodings are |
| * part of the set required to be supported by all Java platform implementations! Any Charsets |
| * initialized here may cause unexpected delays when this class is loaded. See the Charset |
| * Javadocs for the list of built-in character encodings. |
| */ |
| } |