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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/gnu/java/nio/charset/ISO_8859_1.java | |
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Diffstat (limited to 'libjava/classpath/gnu/java/nio/charset/ISO_8859_1.java')
-rw-r--r-- | libjava/classpath/gnu/java/nio/charset/ISO_8859_1.java | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/java/nio/charset/ISO_8859_1.java b/libjava/classpath/gnu/java/nio/charset/ISO_8859_1.java new file mode 100644 index 000000000..eb7c5ec59 --- /dev/null +++ b/libjava/classpath/gnu/java/nio/charset/ISO_8859_1.java @@ -0,0 +1,165 @@ +/* ISO_8859_1.java -- + Copyright (C) 2002, 2004, 2005 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + +package gnu.java.nio.charset; + +import java.nio.ByteBuffer; +import java.nio.CharBuffer; +import java.nio.charset.Charset; +import java.nio.charset.CharsetDecoder; +import java.nio.charset.CharsetEncoder; +import java.nio.charset.CoderResult; + +/** + * ISO-8859-1 charset. + * + * @author Jesse Rosenstock + * @modified Ian Rogers + */ +final class ISO_8859_1 extends Charset +{ + ISO_8859_1 () + { + /* Canonical charset name chosen according to: + * http://java.sun.com/j2se/1.5.0/docs/guide/intl/encoding.doc.html + */ + super ("ISO-8859-1", new String[] { + /* These names are provided by + * http://www.iana.org/assignments/character-sets + */ + "iso-ir-100", + "ISO_8859-1", + "latin1", + "l1", + "IBM819", + "CP819", + "csISOLatin1", + "8859_1", + /* These names are provided by + * http://oss.software.ibm.com/cgi-bin/icu/convexp?s=ALL + */ + "ISO8859_1", + "ISO_8859_1", + "ibm-819", + "ISO_8859-1:1987", + "819", + "ISO8859-1" + }); + + } + + public boolean contains (Charset cs) + { + return cs instanceof US_ASCII || cs instanceof ISO_8859_1; + } + + public CharsetDecoder newDecoder () + { + return new Decoder (this); + } + + public CharsetEncoder newEncoder () + { + return new Encoder (this); + } + + private static final class Decoder extends CharsetDecoder + { + /** Helper to decode loops */ + private static final ByteDecodeLoopHelper helper = new ByteDecodeLoopHelper() + { + protected boolean isMappable(byte b) + { + return true; + } + protected char mapToChar(byte b) + { + return (char)(b & 0xFF); + } + }; + + // Package-private to avoid a trampoline constructor. + Decoder (Charset cs) + { + super (cs, 1.0f, 1.0f); + } + + protected CoderResult decodeLoop (ByteBuffer in, CharBuffer out) + { + return helper.decodeLoop(in, out); + } + } + + private static final class Encoder extends CharsetEncoder + { + /** Helper to encode loops */ + private static final ByteEncodeLoopHelper helper = new ByteEncodeLoopHelper() + { + protected boolean isMappable(char c) + { + return c <= 0xff; + } + protected byte mapToByte(char c) + { + return (byte)c; + } + }; + // Package-private to avoid a trampoline constructor. + Encoder (Charset cs) + { + super (cs, 1.0f, 1.0f); + } + + public boolean canEncode(char c) + { + return c <= 0xff; + } + + public boolean canEncode(CharSequence cs) + { + for (int i = 0; i < cs.length(); ++i) + if (! canEncode(cs.charAt(i))) + return false; + return true; + } + + protected CoderResult encodeLoop (CharBuffer in, ByteBuffer out) + { + return helper.encodeLoop(in, out); + } + } +} |