File: euc-jp.c

package info (click to toggle)
glibc 2.19-13
  • links: PTS, VCS
  • area: main
  • in suites: jessie, jessie-kfreebsd
  • size: 202,472 kB
  • ctags: 140,344
  • sloc: ansic: 969,274; asm: 241,208; sh: 10,047; makefile: 8,467; cpp: 3,595; perl: 2,077; pascal: 1,839; awk: 1,704; yacc: 317; sed: 73
file content (215 lines) | stat: -rw-r--r-- 7,297 bytes parent folder | download | duplicates (10)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
/* Mapping tables for EUC-JP handling.
   Copyright (C) 1998-2014 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library 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
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <http://www.gnu.org/licenses/>.  */

#include <dlfcn.h>
#include <stdint.h>
#include <gconv.h>
#include <jis0201.h>
#include <jis0208.h>
#include <jis0212.h>

/* Definitions used in the body of the `gconv' function.  */
#define CHARSET_NAME		"EUC-JP//"
#define FROM_LOOP		from_euc_jp
#define TO_LOOP			to_euc_jp
#define DEFINE_INIT		1
#define DEFINE_FINI		1
#define MIN_NEEDED_FROM		1
#define MAX_NEEDED_FROM		3
#define MIN_NEEDED_TO		4


/* First define the conversion function from EUC-JP to UCS4.  */
#define MIN_NEEDED_INPUT	MIN_NEEDED_FROM
#define MAX_NEEDED_INPUT	MAX_NEEDED_FROM
#define MIN_NEEDED_OUTPUT	MIN_NEEDED_TO
#define LOOPFCT			FROM_LOOP
#define BODY \
  {									      \
    uint32_t ch = *inptr;						      \
									      \
    if (ch < 0x8e || (ch >= 0x90 && ch <= 0x9f))			      \
      ++inptr;								      \
    else if (ch == 0xff)						      \
      {									      \
	/* This is illegal.  */						      \
	STANDARD_FROM_LOOP_ERR_HANDLER (1);				      \
      }									      \
    else								      \
      {									      \
	/* Two or more byte character.  First test whether the next	      \
	   byte is also available.  */					      \
	int ch2;							      \
									      \
	if (__builtin_expect (inptr + 1 >= inend, 0))			      \
	  {								      \
	    /* The second byte is not available.  Store the		      \
	       intermediate result.  */					      \
	    result = __GCONV_INCOMPLETE_INPUT;				      \
	    break;							      \
	  }								      \
									      \
	ch2 = inptr[1];							      \
									      \
	/* All second bytes of a multibyte character must be >= 0xa1. */      \
	if (__builtin_expect (ch2 < 0xa1, 0))				      \
	  STANDARD_FROM_LOOP_ERR_HANDLER (1);				      \
									      \
	if (ch == 0x8e)							      \
	  {								      \
	    /* This is code set 2: half-width katakana.  */		      \
	    ch = jisx0201_to_ucs4 (ch2);				      \
	    if (__builtin_expect (ch, 0) == __UNKNOWN_10646_CHAR)	      \
	      STANDARD_FROM_LOOP_ERR_HANDLER (1);			      \
									      \
	    inptr += 2;							      \
	  }								      \
	else								      \
	  {								      \
	    const unsigned char *endp;					      \
									      \
	    if (ch == 0x8f)						      \
	      {								      \
		/* This is code set 3: JIS X 0212-1990.  */		      \
		endp = inptr + 1;					      \
									      \
		ch = jisx0212_to_ucs4 (&endp, inend - endp, 0x80);	      \
	      }								      \
	    else							      \
	      {								      \
		/* This is code set 1: JIS X 0208.  */			      \
		endp = inptr;						      \
									      \
		ch = jisx0208_to_ucs4 (&endp, inend - inptr, 0x80);	      \
	      }								      \
									      \
	    if (__builtin_expect (ch, 1) == 0)				      \
	      {								      \
		/* Not enough input available.  */			      \
		result = __GCONV_INCOMPLETE_INPUT;			      \
		break;							      \
	      }								      \
	    if (__builtin_expect (ch == __UNKNOWN_10646_CHAR, 0))	      \
	      /* Illegal character.  */					      \
	      STANDARD_FROM_LOOP_ERR_HANDLER (1);			      \
									      \
	    inptr = endp;						      \
	  }								      \
      }									      \
									      \
    put32 (outptr, ch);							      \
    outptr += 4;							      \
  }
#define ONEBYTE_BODY \
  {									      \
    if (c < 0x8e || (c >= 0x90 && c <= 0x9f))				      \
      return c;								      \
    else								      \
      return WEOF;							      \
  }
#define LOOP_NEED_FLAGS
#include <iconv/loop.c>


/* Next, define the other direction.  */
#define MIN_NEEDED_INPUT	MIN_NEEDED_TO
#define MIN_NEEDED_OUTPUT	MIN_NEEDED_FROM
#define MAX_NEEDED_OUTPUT	MAX_NEEDED_FROM
#define LOOPFCT			TO_LOOP
#define BODY \
  {									      \
    uint32_t ch = get32 (inptr);					      \
									      \
    if (ch < 0x8e || (ch >= 0x90 && ch <= 0x9f))			      \
      /* It's plain ASCII or C1.  */					      \
      *outptr++ = ch;							      \
    else if (ch == 0xa5)						      \
      /* YEN sign => backslash  */					      \
      *outptr++ = 0x5c;							      \
    else if (ch == 0x203e)						      \
      /* overscore => asciitilde */					      \
      *outptr++ = 0x7e;							      \
    else								      \
      {									      \
	/* Try the JIS character sets.  */				      \
	size_t found;							      \
									      \
	/* See whether we have room for at least two characters.  */	      \
	if (__builtin_expect (outptr + 1 >= outend, 0))			      \
	  {								      \
	    result = __GCONV_FULL_OUTPUT;				      \
	    break;							      \
	  }								      \
									      \
	found = ucs4_to_jisx0201 (ch, outptr + 1);			      \
	if (found != __UNKNOWN_10646_CHAR)				      \
	  {								      \
	    /* Yes, it's a JIS 0201 character.  Store the shift byte.  */     \
	    *outptr = 0x8e;						      \
	    outptr += 2;						      \
	  }								      \
	else								      \
	  {								      \
	    /* No JIS 0201 character.  */				      \
	    found = ucs4_to_jisx0208 (ch, outptr, 2);			      \
	    /* Please note that we always have enough room for the output. */ \
	    if (found != __UNKNOWN_10646_CHAR)				      \
	      {								      \
		/* It's a JIS 0208 character, adjust it for EUC-JP.  */	      \
		*outptr++ += 0x80;					      \
		*outptr++ += 0x80;					      \
	      }								      \
	    else							      \
	      {								      \
		/* No JIS 0208 character.  */				      \
		found = ucs4_to_jisx0212 (ch, outptr + 1,		      \
					  outend - outptr - 1);		      \
		  							      \
		if (__builtin_expect (found, 1) == 0)			      \
		  {							      \
		    /* We ran out of space.  */				      \
		    result = __GCONV_FULL_OUTPUT;			      \
		    break;						      \
		  }							      \
		else if (__builtin_expect (found, 0) != __UNKNOWN_10646_CHAR) \
		  {							      \
		    /* It's a JIS 0212 character, adjust it for EUC-JP.  */   \
		    *outptr++ = 0x8f;					      \
		    *outptr++ += 0x80;					      \
		    *outptr++ += 0x80;					      \
		  }							      \
		else							      \
		  {							      \
		    UNICODE_TAG_HANDLER (ch, 4);			      \
									      \
		    /* Illegal character.  */				      \
		    STANDARD_TO_LOOP_ERR_HANDLER (4);			      \
		  }							      \
	      }								      \
	  }								      \
      }									      \
									      \
    inptr += 4;								      \
  }
#define LOOP_NEED_FLAGS
#include <iconv/loop.c>


/* Now define the toplevel functions.  */
#include <iconv/skeleton.c>