1 /* Copyright (C) 2000, 2001 Free Software Foundation
3 This file is part of libgcj.
5 This software is copyrighted work licensed under the terms of the
6 Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
9 /* This is a base class that handles aliasing issues for
10 UnicodeToBytes to BytesToUnicode. */
12 package gnu.gcj.convert;
14 import java.util.Hashtable;
16 public abstract class IOConverter
18 // Map encoding aliases to our canonical form.
19 static private Hashtable hash = new Hashtable ();
21 // True if we have to do byte-order conversions on iconv()
23 static protected boolean iconv_byte_swap;
27 // Manually maintained aliases. Note that the value must be our
29 hash.put ("iso-latin-1", "8859_1");
30 // All aliases after this point are automatically generated by the
31 // `encodings.pl' script. Run it to make any corrections.
32 hash.put ("ansi_x3.4-1968", "ASCII");
33 hash.put ("iso-ir-6", "ASCII");
34 hash.put ("ansi_x3.4-1986", "ASCII");
35 hash.put ("iso_646.irv:1991", "ASCII");
36 hash.put ("ascii", "ASCII");
37 hash.put ("iso646-us", "ASCII");
38 hash.put ("us-ascii", "ASCII");
39 hash.put ("us", "ASCII");
40 hash.put ("ibm367", "ASCII");
41 hash.put ("cp367", "ASCII");
42 hash.put ("csascii", "ASCII");
43 hash.put ("iso_8859-1:1987", "8859_1");
44 hash.put ("iso-ir-100", "8859_1");
45 hash.put ("iso_8859-1", "8859_1");
46 hash.put ("iso-8859-1", "8859_1");
47 hash.put ("latin1", "8859_1");
48 hash.put ("l1", "8859_1");
49 hash.put ("ibm819", "8859_1");
50 hash.put ("cp819", "8859_1");
51 hash.put ("csisolatin1", "8859_1");
52 hash.put ("utf-8", "UTF8");
53 hash.put ("none", "UTF8");
54 hash.put ("shift_jis", "SJIS");
55 hash.put ("ms_kanji", "SJIS");
56 hash.put ("csshiftjis", "SJIS");
57 hash.put ("extended_unix_code_packed_format_for_japanese", "EUCJIS");
58 hash.put ("cseucpkdfmtjapanese", "EUCJIS");
59 hash.put ("euc-jp", "EUCJIS");
61 iconv_byte_swap = iconv_init ();
64 private static native boolean iconv_init ();
66 // Turn an alias into the canonical form.
67 protected static final String canonicalize (String name)
69 String c = (String) hash.get (name.toLowerCase ());
70 return c == null ? name : c;