[444] | 1 | /* Mapping tables for EUC-JP handling. |
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| 2 | Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc. |
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| 3 | This file is part of the GNU C Library. |
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| 4 | Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998. |
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| 5 | |
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| 6 | The GNU C Library is free software; you can redistribute it and/or |
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| 7 | modify it under the terms of the GNU Lesser General Public |
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| 8 | License as published by the Free Software Foundation; either |
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| 9 | version 2.1 of the License, or (at your option) any later version. |
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| 10 | |
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| 11 | The GNU C Library is distributed in the hope that it will be useful, |
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| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 14 | Lesser General Public License for more details. |
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| 15 | |
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| 16 | You should have received a copy of the GNU Lesser General Public |
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| 17 | License along with the GNU C Library; if not, write to the Free |
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| 18 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
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| 19 | 02111-1307 USA. */ |
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| 20 | |
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| 21 | #include <dlfcn.h> |
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| 22 | #include <stdint.h> |
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| 23 | #include <gconv.h> |
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| 24 | #include <jis0201.h> |
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| 25 | #include <jis0208.h> |
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| 26 | #include <jis0212.h> |
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| 27 | |
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| 28 | /* Definitions used in the body of the `gconv' function. */ |
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| 29 | #define CHARSET_NAME "EUC-JP//" |
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| 30 | #define FROM_LOOP from_euc_jp |
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| 31 | #define TO_LOOP to_euc_jp |
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| 32 | #define DEFINE_INIT 1 |
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| 33 | #define DEFINE_FINI 1 |
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| 34 | #define MIN_NEEDED_FROM 1 |
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| 35 | #define MAX_NEEDED_FROM 3 |
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| 36 | #define MIN_NEEDED_TO 4 |
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| 37 | |
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| 38 | |
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| 39 | /* First define the conversion function from EUC-JP to UCS4. */ |
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| 40 | #define MIN_NEEDED_INPUT MIN_NEEDED_FROM |
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| 41 | #define MAX_NEEDED_INPUT MAX_NEEDED_FROM |
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| 42 | #define MIN_NEEDED_OUTPUT MIN_NEEDED_TO |
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| 43 | #define LOOPFCT FROM_LOOP |
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| 44 | #define BODY \ |
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| 45 | { \ |
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| 46 | uint32_t ch = *inptr; \ |
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| 47 | \ |
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| 48 | if (ch < 0x8e || (ch >= 0x90 && ch <= 0x9f)) \ |
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| 49 | ++inptr; \ |
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| 50 | else if (ch == 0xff) \ |
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| 51 | { \ |
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| 52 | /* This is illegal. */ \ |
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| 53 | if (! ignore_errors_p ()) \ |
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| 54 | { \ |
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| 55 | result = __GCONV_ILLEGAL_INPUT; \ |
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| 56 | break; \ |
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| 57 | } \ |
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| 58 | \ |
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| 59 | ++inptr; \ |
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| 60 | ++*irreversible; \ |
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| 61 | continue; \ |
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| 62 | } \ |
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| 63 | else \ |
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| 64 | { \ |
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| 65 | /* Two or more byte character. First test whether the next \ |
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| 66 | character is also available. */ \ |
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| 67 | int ch2; \ |
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| 68 | \ |
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| 69 | if (__builtin_expect (inptr + 1 >= inend, 0)) \ |
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| 70 | { \ |
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| 71 | /* The second character is not available. Store the \ |
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| 72 | intermediate result. */ \ |
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| 73 | result = __GCONV_INCOMPLETE_INPUT; \ |
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| 74 | break; \ |
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| 75 | } \ |
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| 76 | \ |
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| 77 | ch2 = inptr[1]; \ |
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| 78 | \ |
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| 79 | /* All second bytes of a multibyte character must be >= 0xa1. */ \ |
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| 80 | if (__builtin_expect (ch2 < 0xa1, 0)) \ |
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| 81 | { \ |
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| 82 | /* This is an illegal character. */ \ |
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| 83 | if (! ignore_errors_p ()) \ |
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| 84 | { \ |
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| 85 | result = __GCONV_ILLEGAL_INPUT; \ |
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| 86 | break; \ |
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| 87 | } \ |
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| 88 | \ |
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| 89 | ++inptr; \ |
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| 90 | ++*irreversible; \ |
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| 91 | continue; \ |
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| 92 | } \ |
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| 93 | \ |
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| 94 | if (ch == 0x8e) \ |
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| 95 | { \ |
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| 96 | /* This is code set 2: half-width katakana. */ \ |
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| 97 | ch = jisx0201_to_ucs4 (ch2); \ |
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| 98 | if (__builtin_expect (ch, 0) == __UNKNOWN_10646_CHAR) \ |
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| 99 | { \ |
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| 100 | /* Illegal character. */ \ |
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| 101 | if (! ignore_errors_p ()) \ |
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| 102 | { \ |
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| 103 | /* This is an illegal character. */ \ |
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| 104 | result = __GCONV_ILLEGAL_INPUT; \ |
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| 105 | break; \ |
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| 106 | } \ |
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| 107 | } \ |
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| 108 | \ |
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| 109 | inptr += 2; \ |
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| 110 | } \ |
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| 111 | else \ |
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| 112 | { \ |
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| 113 | const unsigned char *endp; \ |
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| 114 | \ |
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| 115 | if (ch == 0x8f) \ |
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| 116 | { \ |
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| 117 | /* This is code set 3: JIS X 0212-1990. */ \ |
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| 118 | endp = inptr + 1; \ |
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| 119 | \ |
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| 120 | ch = jisx0212_to_ucs4 (&endp, inend - endp, 0x80); \ |
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| 121 | } \ |
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| 122 | else \ |
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| 123 | { \ |
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| 124 | /* This is code set 1: JIS X 0208. */ \ |
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| 125 | endp = inptr; \ |
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| 126 | \ |
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| 127 | ch = jisx0208_to_ucs4 (&endp, inend - inptr, 0x80); \ |
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| 128 | } \ |
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| 129 | \ |
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| 130 | if (__builtin_expect (ch, 1) == 0) \ |
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| 131 | { \ |
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| 132 | /* Not enough input available. */ \ |
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| 133 | result = __GCONV_INCOMPLETE_INPUT; \ |
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| 134 | break; \ |
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| 135 | } \ |
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| 136 | if (__builtin_expect (ch, 0) == __UNKNOWN_10646_CHAR) \ |
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| 137 | { \ |
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| 138 | /* Illegal character. */ \ |
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| 139 | if (! ignore_errors_p ()) \ |
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| 140 | { \ |
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| 141 | /* This is an illegal character. */ \ |
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| 142 | result = __GCONV_ILLEGAL_INPUT; \ |
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| 143 | break; \ |
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| 144 | } \ |
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| 145 | \ |
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| 146 | inptr += 2; \ |
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| 147 | ++*irreversible; \ |
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| 148 | continue; \ |
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| 149 | } \ |
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| 150 | inptr = endp; \ |
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| 151 | } \ |
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| 152 | } \ |
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| 153 | \ |
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| 154 | put32 (outptr, ch); \ |
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| 155 | outptr += 4; \ |
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| 156 | } |
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| 157 | #define LOOP_NEED_FLAGS |
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| 158 | #include <iconv/loop.c> |
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| 159 | |
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| 160 | |
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| 161 | /* Next, define the other direction. */ |
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| 162 | #define MIN_NEEDED_INPUT MIN_NEEDED_TO |
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| 163 | #define MIN_NEEDED_OUTPUT MIN_NEEDED_FROM |
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| 164 | #define MAX_NEEDED_OUTPUT MAX_NEEDED_FROM |
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| 165 | #define LOOPFCT TO_LOOP |
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| 166 | #define BODY \ |
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| 167 | { \ |
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| 168 | uint32_t ch = get32 (inptr); \ |
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| 169 | \ |
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| 170 | if (ch < 0x8e || (ch >= 0x90 && ch <= 0x9f)) \ |
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| 171 | /* It's plain ASCII or C1. */ \ |
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| 172 | *outptr++ = ch; \ |
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| 173 | else if (ch == 0xa5) \ |
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| 174 | /* YEN sign => backslash */ \ |
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| 175 | *outptr++ = 0x5c; \ |
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| 176 | else if (ch == 0x203e) \ |
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| 177 | /* overscore => asciitilde */ \ |
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| 178 | *outptr++ = 0x7e; \ |
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| 179 | else \ |
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| 180 | { \ |
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| 181 | /* Try the JIS character sets. */ \ |
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| 182 | size_t found; \ |
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| 183 | \ |
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| 184 | /* See whether we have room for at least two characters. */ \ |
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| 185 | if (__builtin_expect (outptr + 1 >= outend, 0)) \ |
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| 186 | { \ |
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| 187 | result = __GCONV_FULL_OUTPUT; \ |
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| 188 | break; \ |
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| 189 | } \ |
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| 190 | \ |
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| 191 | found = ucs4_to_jisx0201 (ch, outptr + 1); \ |
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| 192 | if (found != __UNKNOWN_10646_CHAR) \ |
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| 193 | { \ |
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| 194 | /* Yes, it's a JIS 0201 character. Store the shift byte. */ \ |
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| 195 | *outptr = 0x8e; \ |
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| 196 | outptr += 2; \ |
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| 197 | } \ |
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| 198 | else \ |
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| 199 | { \ |
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| 200 | /* No JIS 0201 character. */ \ |
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| 201 | found = ucs4_to_jisx0208 (ch, outptr, 2); \ |
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| 202 | /* Please note that we always have enough room for the output. */ \ |
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| 203 | if (found != __UNKNOWN_10646_CHAR) \ |
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| 204 | { \ |
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| 205 | /* It's a JIS 0208 character, adjust it for EUC-JP. */ \ |
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| 206 | *outptr++ += 0x80; \ |
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| 207 | *outptr++ += 0x80; \ |
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| 208 | } \ |
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| 209 | else \ |
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| 210 | { \ |
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| 211 | /* No JIS 0208 character. */ \ |
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| 212 | found = ucs4_to_jisx0212 (ch, outptr + 1, \ |
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| 213 | outend - outptr - 1); \ |
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| 214 | \ |
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| 215 | if (__builtin_expect (found, 1) == 0) \ |
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| 216 | { \ |
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| 217 | /* We ran out of space. */ \ |
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| 218 | result = __GCONV_FULL_OUTPUT; \ |
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| 219 | break; \ |
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| 220 | } \ |
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| 221 | else if (__builtin_expect (found, 0) != __UNKNOWN_10646_CHAR) \ |
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| 222 | { \ |
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| 223 | /* It's a JIS 0212 character, adjust it for EUC-JP. */ \ |
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| 224 | *outptr++ = 0x8f; \ |
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| 225 | *outptr++ += 0x80; \ |
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| 226 | *outptr++ += 0x80; \ |
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| 227 | } \ |
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| 228 | else \ |
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| 229 | { \ |
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| 230 | UNICODE_TAG_HANDLER (ch, 4); \ |
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| 231 | \ |
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| 232 | /* Illegal character. */ \ |
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| 233 | STANDARD_ERR_HANDLER (4); \ |
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| 234 | } \ |
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| 235 | } \ |
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| 236 | } \ |
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| 237 | } \ |
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| 238 | \ |
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| 239 | inptr += 4; \ |
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| 240 | } |
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| 241 | #define LOOP_NEED_FLAGS |
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| 242 | #include <iconv/loop.c> |
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| 243 | |
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| 244 | |
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| 245 | /* Now define the toplevel functions. */ |
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| 246 | #include <iconv/skeleton.c> |
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