1/* Test of conversion of wide character to multibyte character.
2   Copyright (C) 2008-2011 Free Software Foundation, Inc.
3
4   This program is free software: you can redistribute it and/or modify
5   it under the terms of the GNU General Public License as published by
6   the Free Software Foundation; either version 3 of the License, or
7   (at your option) any later version.
8
9   This program is distributed in the hope that it will be useful,
10   but WITHOUT ANY WARRANTY; without even the implied warranty of
11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12   GNU General Public License for more details.
13
14   You should have received a copy of the GNU General Public License
15   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
16
17/* Written by Bruno Haible <bruno@clisp.org>, 2008.  */
18
19#include <assert.h>
20#include <locale.h>
21#include <stdlib.h>
22#include <string.h>
23#include <wchar.h>
24
25/* Check the multibyte character s[0..n-1].  */
26static void
27check_character (const char *s, size_t n)
28{
29  wchar_t wc;
30  char buf[64];
31  int iret;
32  size_t ret;
33
34  wc = (wchar_t) 0xBADFACE;
35  iret = mbtowc (&wc, s, n);
36  assert (iret == (int)n);
37
38  ret = wcrtomb (buf, wc, NULL);
39  assert (ret == n);
40  assert (memcmp (buf, s, n) == 0);
41
42  /* Test special calling convention, passing a NULL pointer.  */
43  ret = wcrtomb (NULL, wc, NULL);
44
45  assert (ret == 1);
46}
47
48int
49main (int argc, char *argv[])
50{
51  char buf[64];
52  size_t ret;
53  int i;
54
55  /* configure should already have checked that the locale is supported.  */
56  if (setlocale (LC_ALL, "") == NULL) {
57	fprintf(stderr, "unable to set standard locale\n");
58    return 1;
59  }
60
61  /* Test NUL character.  */
62  printf("NUL character ...\n");
63  {
64    buf[0] = 'x';
65    ret = wcrtomb (buf, 0, NULL);
66    assert (ret == 1);
67    assert (buf[0] == '\0');
68  }
69
70  /* Test single bytes.  */
71  printf("single bytes ...\n");
72  {
73    int c;
74
75    for (c = 0; c < 0x100; c++)
76      switch (c)
77        {
78        case '\t': case '\v': case '\f':
79        case ' ': case '!': case '"': case '#': case '%':
80        case '&': case '\'': case '(': case ')': case '*':
81        case '+': case ',': case '-': case '.': case '/':
82        case '0': case '1': case '2': case '3': case '4':
83        case '5': case '6': case '7': case '8': case '9':
84        case ':': case ';': case '<': case '=': case '>':
85        case '?':
86        case 'A': case 'B': case 'C': case 'D': case 'E':
87        case 'F': case 'G': case 'H': case 'I': case 'J':
88        case 'K': case 'L': case 'M': case 'N': case 'O':
89        case 'P': case 'Q': case 'R': case 'S': case 'T':
90        case 'U': case 'V': case 'W': case 'X': case 'Y':
91        case 'Z':
92        case '[': case '\\': case ']': case '^': case '_':
93        case 'a': case 'b': case 'c': case 'd': case 'e':
94        case 'f': case 'g': case 'h': case 'i': case 'j':
95        case 'k': case 'l': case 'm': case 'n': case 'o':
96        case 'p': case 'q': case 'r': case 's': case 't':
97        case 'u': case 'v': case 'w': case 'x': case 'y':
98        case 'z': case '{': case '|': case '}': case '~':
99          /* c is in the ISO C "basic character set".  */
100          ret = wcrtomb (buf, btowc (c), NULL);
101          assert (ret == 1);
102          assert (buf[0] == (char) c);
103          break;
104        }
105  }
106
107  /* Test special calling convention, passing a NULL pointer.  */
108  printf("special calling convention with NULL pointer ...\n");
109  {
110    ret = wcrtomb (NULL, '\0', NULL);
111    assert (ret == 1);
112    ret = wcrtomb (NULL, btowc ('x'), NULL);
113    assert (ret == 1);
114  }
115
116  for (i = '1'; i <= '4'; ++i) {
117    switch (i)
118      {
119      case '1':
120        /* Locale encoding is ISO-8859-1 or ISO-8859-15.  */
121    	printf("ISO8859-1 ...\n");
122        {
123          const char input[] = "B\374\337er"; /* "Büßer" */
124
125       	  if (setlocale (LC_ALL, "en_US.ISO8859-1") == NULL) {
126       		  fprintf(stderr, "unable to set ISO8859-1 locale, skipping\n");
127       		  break;
128       	  }
129
130          check_character (input + 1, 1);
131          check_character (input + 2, 1);
132        }
133        break;
134
135      case '2':
136        /* Locale encoding is UTF-8.  */
137    	printf("UTF-8 ...\n");
138        {
139          const char input[] = "B\303\274\303\237er"; /* "Büßer" */
140
141		  if (setlocale (LC_ALL, "en_US.UTF-8") == NULL) {
142			  fprintf(stderr, "unable to set UTF-8 locale, skipping\n");
143			  break;
144		  }
145
146          check_character (input + 1, 2);
147          check_character (input + 3, 2);
148        }
149        break;
150
151      case '3':
152        /* Locale encoding is EUC-JP.  */
153    	printf("EUC-JP ...\n");
154        {
155          const char input[] = "<\306\374\313\334\270\354>"; /* "<日本語>" */
156
157		  if (setlocale (LC_ALL, "en_US.EUC-JP") == NULL) {
158			  fprintf(stderr, "unable to set EUC-JP locale, skipping\n");
159			  break;
160		  }
161
162          check_character (input + 1, 2);
163          check_character (input + 3, 2);
164          check_character (input + 5, 2);
165        }
166        break;
167
168      case '4':
169        /* Locale encoding is GB18030.  */
170    	printf("GB18030 ...\n");
171        {
172          const char input[] = "B\250\271\201\060\211\070er"; /* "Büßer" */
173
174		  if (setlocale (LC_ALL, "en_US.GB18030") == NULL) {
175			  fprintf(stderr, "unable to set GB18030 locale, skipping\n");
176			  break;
177		  }
178
179		  check_character (input + 1, 2);
180          check_character (input + 3, 4);
181        }
182        break;
183      }
184  }
185
186  return 0;
187}
188