/*
* 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="http://code.google.com/p/guava-libraries/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("Non-UTF-8 Charset")
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.
*
*/
@GwtIncompatible("Non-UTF-8 Charset")
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("Non-UTF-8 Charset")
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("Non-UTF-8 Charset")
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("Non-UTF-8 Charset")
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.
*/
}