Change all uses of __is_last.
[kopensolaris-gnu/glibc.git] / iconvdata / euc-cn.c
1 /* Mapping tables for EUC-CN handling.
2    Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc.
3    This file is part of the GNU C Library.
4    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
5
6    The GNU C Library is free software; you can redistribute it and/or
7    modify it under the terms of the GNU Library General Public License as
8    published by the Free Software Foundation; either version 2 of the
9    License, or (at your option) any later version.
10
11    The GNU C Library is distributed in the hope that it will be useful,
12    but WITHOUT ANY WARRANTY; without even the implied warranty of
13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14    Library General Public License for more details.
15
16    You should have received a copy of the GNU Library General Public
17    License along with the GNU C Library; see the file COPYING.LIB.  If not,
18    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19    Boston, MA 02111-1307, USA.  */
20
21 #include <gb2312.h>
22 #include <stdint.h>
23
24 /* Definitions used in the body of the `gconv' function.  */
25 #define CHARSET_NAME            "EUC-CN//"
26 #define FROM_LOOP               from_euc_cn
27 #define TO_LOOP                 to_euc_cn
28 #define DEFINE_INIT             1
29 #define DEFINE_FINI             1
30 #define MIN_NEEDED_FROM         1
31 #define MAX_NEEDED_FROM         2
32 #define MIN_NEEDED_TO           4
33
34
35 /* First define the conversion function from EUC-CN to UCS4.  */
36 #define MIN_NEEDED_INPUT        MIN_NEEDED_FROM
37 #define MAX_NEEDED_INPUT        MAX_NEEDED_FROM
38 #define MIN_NEEDED_OUTPUT       MIN_NEEDED_TO
39 #define LOOPFCT                 FROM_LOOP
40 #define BODY \
41   {                                                                           \
42     uint32_t ch = *inptr;                                                     \
43                                                                               \
44     if (ch <= 0x7f)                                                           \
45       ++inptr;                                                                \
46     else                                                                      \
47       if ((ch <= 0xa0 || ch > 0xfe) && ch != 0x8e && ch != 0x8f)              \
48         {                                                                     \
49           /* This is illegal.  */                                             \
50           result = __GCONV_ILLEGAL_INPUT;                                     \
51           break;                                                              \
52         }                                                                     \
53       else                                                                    \
54         {                                                                     \
55           /* Two or more byte character.  First test whether the              \
56              next character is also available.  */                            \
57           const unsigned char *endp;                                          \
58                                                                               \
59           if (NEED_LENGTH_TEST && inptr + 1 >= inend)                         \
60             {                                                                 \
61               /* The second character is not available.  Store                \
62                  the intermediate result.  */                                 \
63               result = __GCONV_INCOMPLETE_INPUT;                              \
64               break;                                                          \
65             }                                                                 \
66                                                                               \
67           ch = inptr[1];                                                      \
68                                                                               \
69           /* All second bytes of a multibyte character must be >= 0xa1. */    \
70           if (ch < 0xa1)                                                      \
71             {                                                                 \
72               /* This is an illegal character.  */                            \
73               result = __GCONV_ILLEGAL_INPUT;                                 \
74               break;                                                          \
75             }                                                                 \
76                                                                               \
77           /* This is code set 1: GB 2312-80.  */                              \
78           endp = inptr;                                                       \
79                                                                               \
80           ch = gb2312_to_ucs4 (&endp, 2, 0x80);                               \
81           if (ch == __UNKNOWN_10646_CHAR)                                     \
82             {                                                                 \
83               /* This is an illegal character.  */                            \
84               result = __GCONV_ILLEGAL_INPUT;                                 \
85               break;                                                          \
86             }                                                                 \
87                                                                               \
88           inptr += 2;                                                         \
89         }                                                                     \
90                                                                               \
91     put32 (outptr, ch);                                                       \
92     outptr += 4;                                                              \
93   }
94 #include <iconv/loop.c>
95
96
97 /* Next, define the other direction.  */
98 #define MIN_NEEDED_INPUT        MIN_NEEDED_TO
99 #define MIN_NEEDED_OUTPUT       MIN_NEEDED_FROM
100 #define MAX_NEEDED_OUTPUT       MAX_NEEDED_FROM
101 #define LOOPFCT                 TO_LOOP
102 #define BODY \
103   {                                                                           \
104     uint32_t ch = get32 (inptr);                                              \
105                                                                               \
106     if (ch <= L'\x7f')                                                        \
107       /* It's plain ASCII.  */                                                \
108       *outptr++ = (unsigned char) ch;                                         \
109     else                                                                      \
110       {                                                                       \
111         size_t found;                                                         \
112                                                                               \
113         found = ucs4_to_gb2312 (ch, outptr,                                   \
114                                 (NEED_LENGTH_TEST                             \
115                                  ? outend - outptr : MAX_NEEDED_OUTPUT));     \
116         if (!NEED_LENGTH_TEST || found != 0)                                  \
117           {                                                                   \
118             if (found == __UNKNOWN_10646_CHAR)                                \
119               {                                                               \
120                 /* Illegal character.  */                                     \
121                 result = __GCONV_ILLEGAL_INPUT;                               \
122                 break;                                                        \
123               }                                                               \
124                                                                               \
125             /* It's a GB 2312 character, adjust it for EUC-CN.  */            \
126             *outptr++ += 0x80;                                                \
127             *outptr++ += 0x80;                                                \
128           }                                                                   \
129         else                                                                  \
130           {                                                                   \
131             /* We ran out of space.  */                                       \
132             result = __GCONV_FULL_OUTPUT;                                     \
133             break;                                                            \
134           }                                                                   \
135       }                                                                       \
136     inptr += 4;                                                               \
137   }
138 #include <iconv/loop.c>
139
140
141 /* Now define the toplevel functions.  */
142 #include <iconv/skeleton.c>