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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.17.0/] [newlib/] [libc/] [stdlib/] [wctomb_r.c] - Blame information for rev 179

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#include <stdlib.h>
#include <string.h>
#include <wchar.h>
#include <locale.h>
#include "mbctype.h"
 
/* for some conversions, we use the __count field as a place to store a state value */
#define __state __count
 
extern char __lc_ctype[12];
 
int
_DEFUN (_wctomb_r, (r, s, wchar, state),
        struct _reent *r     _AND
        char          *s     _AND
        wchar_t        _wchar _AND
        mbstate_t     *state)
{
  /* Avoids compiler warnings about comparisons that are always false
     due to limited range when sizeof(wchar_t) is 2 but sizeof(wint_t)
     is 4, as is the case on cygwin.  */
  wint_t wchar = _wchar;
 
  if (strlen (__lc_ctype) <= 1)
    { /* fall-through */ }
  else if (!strcmp (__lc_ctype, "C-UTF-8"))
    {
      if (s == NULL)
        return 0; /* UTF-8 encoding is not state-dependent */
 
      if (wchar <= 0x7f)
        {
          *s = wchar;
          return 1;
        }
      else if (wchar >= 0x80 && wchar <= 0x7ff)
        {
          *s++ = 0xc0 | ((wchar & 0x7c0) >> 6);
          *s   = 0x80 |  (wchar &  0x3f);
          return 2;
        }
      else if (wchar >= 0x800 && wchar <= 0xffff)
        {
          /* UTF-16 surrogates -- must not occur in normal UCS-4 data */
          if (wchar >= 0xd800 && wchar <= 0xdfff)
            return -1;
 
          *s++ = 0xe0 | ((wchar & 0xf000) >> 12);
          *s++ = 0x80 | ((wchar &  0xfc0) >> 6);
          *s   = 0x80 |  (wchar &   0x3f);
          return 3;
        }
      else if (wchar >= 0x10000 && wchar <= 0x1fffff)
        {
          *s++ = 0xf0 | ((wchar & 0x1c0000) >> 18);
          *s++ = 0x80 | ((wchar &  0x3f000) >> 12);
          *s++ = 0x80 | ((wchar &    0xfc0) >> 6);
          *s   = 0x80 |  (wchar &     0x3f);
          return 4;
        }
      else if (wchar >= 0x200000 && wchar <= 0x3ffffff)
        {
          *s++ = 0xf8 | ((wchar & 0x3000000) >> 24);
          *s++ = 0x80 | ((wchar &  0xfc0000) >> 18);
          *s++ = 0x80 | ((wchar &   0x3f000) >> 12);
          *s++ = 0x80 | ((wchar &     0xfc0) >> 6);
          *s   = 0x80 |  (wchar &      0x3f);
          return 5;
        }
      else if (wchar >= 0x4000000 && wchar <= 0x7fffffff)
        {
          *s++ = 0xfc | ((wchar & 0x40000000) >> 30);
          *s++ = 0x80 | ((wchar & 0x3f000000) >> 24);
          *s++ = 0x80 | ((wchar &   0xfc0000) >> 18);
          *s++ = 0x80 | ((wchar &    0x3f000) >> 12);
          *s++ = 0x80 | ((wchar &      0xfc0) >> 6);
          *s   = 0x80 |  (wchar &       0x3f);
          return 6;
        }
      else
        return -1;
    }
  else if (!strcmp (__lc_ctype, "C-SJIS"))
    {
      unsigned char char2 = (unsigned char)wchar;
      unsigned char char1 = (unsigned char)(wchar >> 8);
 
      if (s == NULL)
        return 0;  /* not state-dependent */
 
      if (char1 != 0x00)
        {
        /* first byte is non-zero..validate multi-byte char */
          if (_issjis1(char1) && _issjis2(char2))
            {
              *s++ = (char)char1;
              *s = (char)char2;
              return 2;
            }
          else
            return -1;
        }
    }
  else if (!strcmp (__lc_ctype, "C-EUCJP"))
    {
      unsigned char char2 = (unsigned char)wchar;
      unsigned char char1 = (unsigned char)(wchar >> 8);
 
      if (s == NULL)
        return 0;  /* not state-dependent */
 
      if (char1 != 0x00)
        {
        /* first byte is non-zero..validate multi-byte char */
          if (_iseucjp (char1) && _iseucjp (char2))
            {
              *s++ = (char)char1;
              *s = (char)char2;
              return 2;
            }
          else
            return -1;
        }
    }
  else if (!strcmp (__lc_ctype, "C-JIS"))
    {
      int cnt = 0;
      unsigned char char2 = (unsigned char)wchar;
      unsigned char char1 = (unsigned char)(wchar >> 8);
 
      if (s == NULL)
        return 1;  /* state-dependent */
 
      if (char1 != 0x00)
        {
        /* first byte is non-zero..validate multi-byte char */
          if (_isjis (char1) && _isjis (char2))
            {
              if (state->__state == 0)
                {
                  /* must switch from ASCII to JIS state */
                  state->__state = 1;
                  *s++ = ESC_CHAR;
                  *s++ = '$';
                  *s++ = 'B';
                  cnt = 3;
                }
              *s++ = (char)char1;
              *s = (char)char2;
              return cnt + 2;
            }
          else
            return -1;
        }
      else
        {
          if (state->__state != 0)
            {
              /* must switch from JIS to ASCII state */
              state->__state = 0;
              *s++ = ESC_CHAR;
              *s++ = '(';
              *s++ = 'B';
              cnt = 3;
            }
          *s = (char)char2;
          return cnt + 1;
        }
    }
 
  if (s == NULL)
    return 0;
 
  /* otherwise we are dealing with a single byte character */
  *s = (char) wchar;
  return 1;
}
 

Line No.	Rev	Author	Line
1	148	jeremybenn	`#include <stdlib.h>`
2			`#include <string.h>`
3			`#include <wchar.h>`
4			`#include <locale.h>`
5			`#include "mbctype.h"`
6
7			`/* for some conversions, we use the __count field as a place to store a state value */`
8			`#define __state __count`
9
10			`extern char __lc_ctype[12];`
11
12			`int`
13			`_DEFUN (_wctomb_r, (r, s, wchar, state),`
14			`struct _reent *r _AND`
15			`char *s _AND`
16			`wchar_t _wchar _AND`
17			`mbstate_t *state)`
18			`{`
19			`/* Avoids compiler warnings about comparisons that are always false`
20			`due to limited range when sizeof(wchar_t) is 2 but sizeof(wint_t)`
21			`is 4, as is the case on cygwin. */`
22			`wint_t wchar = _wchar;`
23
24			`if (strlen (__lc_ctype) <= 1)`
25			`{ /* fall-through */ }`
26			`else if (!strcmp (__lc_ctype, "C-UTF-8"))`
27			`{`
28			`if (s == NULL)`
29			`return 0; /* UTF-8 encoding is not state-dependent */`
30
31			`if (wchar <= 0x7f)`
32			`{`
33			`*s = wchar;`
34			`return 1;`
35			`}`
36			`else if (wchar >= 0x80 && wchar <= 0x7ff)`
37			`{`
38			`*s++ = 0xc0 \| ((wchar & 0x7c0) >> 6);`
39			`*s = 0x80 \| (wchar & 0x3f);`
40			`return 2;`
41			`}`
42			`else if (wchar >= 0x800 && wchar <= 0xffff)`
43			`{`
44			`/* UTF-16 surrogates -- must not occur in normal UCS-4 data */`
45			`if (wchar >= 0xd800 && wchar <= 0xdfff)`
46			`return -1;`
47
48			`*s++ = 0xe0 \| ((wchar & 0xf000) >> 12);`
49			`*s++ = 0x80 \| ((wchar & 0xfc0) >> 6);`
50			`*s = 0x80 \| (wchar & 0x3f);`
51			`return 3;`
52			`}`
53			`else if (wchar >= 0x10000 && wchar <= 0x1fffff)`
54			`{`
55			`*s++ = 0xf0 \| ((wchar & 0x1c0000) >> 18);`
56			`*s++ = 0x80 \| ((wchar & 0x3f000) >> 12);`
57			`*s++ = 0x80 \| ((wchar & 0xfc0) >> 6);`
58			`*s = 0x80 \| (wchar & 0x3f);`
59			`return 4;`
60			`}`
61			`else if (wchar >= 0x200000 && wchar <= 0x3ffffff)`
62			`{`
63			`*s++ = 0xf8 \| ((wchar & 0x3000000) >> 24);`
64			`*s++ = 0x80 \| ((wchar & 0xfc0000) >> 18);`
65			`*s++ = 0x80 \| ((wchar & 0x3f000) >> 12);`
66			`*s++ = 0x80 \| ((wchar & 0xfc0) >> 6);`
67			`*s = 0x80 \| (wchar & 0x3f);`
68			`return 5;`
69			`}`
70			`else if (wchar >= 0x4000000 && wchar <= 0x7fffffff)`
71			`{`
72			`*s++ = 0xfc \| ((wchar & 0x40000000) >> 30);`
73			`*s++ = 0x80 \| ((wchar & 0x3f000000) >> 24);`
74			`*s++ = 0x80 \| ((wchar & 0xfc0000) >> 18);`
75			`*s++ = 0x80 \| ((wchar & 0x3f000) >> 12);`
76			`*s++ = 0x80 \| ((wchar & 0xfc0) >> 6);`
77			`*s = 0x80 \| (wchar & 0x3f);`
78			`return 6;`
79			`}`
80			`else`
81			`return -1;`
82			`}`
83			`else if (!strcmp (__lc_ctype, "C-SJIS"))`
84			`{`
85			`unsigned char char2 = (unsigned char)wchar;`
86			`unsigned char char1 = (unsigned char)(wchar >> 8);`
87
88			`if (s == NULL)`
89			`return 0; /* not state-dependent */`
90
91			`if (char1 != 0x00)`
92			`{`
93			`/* first byte is non-zero..validate multi-byte char */`
94			`if (_issjis1(char1) && _issjis2(char2))`
95			`{`
96			`*s++ = (char)char1;`
97			`*s = (char)char2;`
98			`return 2;`
99			`}`
100			`else`
101			`return -1;`
102			`}`
103			`}`
104			`else if (!strcmp (__lc_ctype, "C-EUCJP"))`
105			`{`
106			`unsigned char char2 = (unsigned char)wchar;`
107			`unsigned char char1 = (unsigned char)(wchar >> 8);`
108
109			`if (s == NULL)`
110			`return 0; /* not state-dependent */`
111
112			`if (char1 != 0x00)`
113			`{`
114			`/* first byte is non-zero..validate multi-byte char */`
115			`if (_iseucjp (char1) && _iseucjp (char2))`
116			`{`
117			`*s++ = (char)char1;`
118			`*s = (char)char2;`
119			`return 2;`
120			`}`
121			`else`
122			`return -1;`
123			`}`
124			`}`
125			`else if (!strcmp (__lc_ctype, "C-JIS"))`
126			`{`
127			`int cnt = 0;`
128			`unsigned char char2 = (unsigned char)wchar;`
129			`unsigned char char1 = (unsigned char)(wchar >> 8);`
130
131			`if (s == NULL)`
132			`return 1; /* state-dependent */`
133
134			`if (char1 != 0x00)`
135			`{`
136			`/* first byte is non-zero..validate multi-byte char */`
137			`if (_isjis (char1) && _isjis (char2))`
138			`{`
139			`if (state->__state == 0)`
140			`{`
141			`/* must switch from ASCII to JIS state */`
142			`state->__state = 1;`
143			`*s++ = ESC_CHAR;`
144			`*s++ = '$';`
145			`*s++ = 'B';`
146			`cnt = 3;`
147			`}`
148			`*s++ = (char)char1;`
149			`*s = (char)char2;`
150			`return cnt + 2;`
151			`}`
152			`else`
153			`return -1;`
154			`}`
155			`else`
156			`{`
157			`if (state->__state != 0)`
158			`{`
159			`/* must switch from JIS to ASCII state */`
160			`state->__state = 0;`
161			`*s++ = ESC_CHAR;`
162			`*s++ = '(';`
163			`*s++ = 'B';`
164			`cnt = 3;`
165			`}`
166			`*s = (char)char2;`
167			`return cnt + 1;`
168			`}`
169			`}`
170
171			`if (s == NULL)`
172			`return 0;`
173
174			`/* otherwise we are dealing with a single byte character */`
175			`*s = (char) wchar;`
176			`return 1;`
177			`}`
178

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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.17.0/] [newlib/] [libc/] [stdlib/] [wctomb_r.c] - Blame information for rev 179