tests/test-iswpunct.c

   1 /* Test of iswpunct() function.
   2    Copyright (C) 2020-2024 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 <https://www.gnu.org/licenses/>.  */
  16
  17 #include <config.h>
  18
  19 #include <wctype.h>
  20
  21 #include "signature.h"
  22 SIGNATURE_CHECK (iswpunct, int, (wint_t));
  23
  24 #include <locale.h>
  25 #include <stdlib.h>
  26 #include <string.h>
  27 #include <wchar.h>
  28
  29 #include "macros.h"
  30
  31 /* Returns the value of iswpunct for the multibyte character s[0..n-1].  */
  32 static int
  33 for_character (const char *s, size_t n)
  34 {
  35   mbstate_t state;
  36   wchar_t wc;
  37   size_t ret;
  38
  39   memset (&state, '\0', sizeof (mbstate_t));
  40   wc = (wchar_t) 0xBADFACE;
  41   ret = mbrtowc (&wc, s, n, &state);
  42   if (ret == n)
  43     return iswpunct (wc);
  44   else
  45     return 0;
  46 }
  47
  48 int
  49 main (int argc, char *argv[])
  50 {
  51   int is;
  52   char buf[4];
  53
  54   /* configure should already have checked that the locale is supported.  */
  55   if (setlocale (LC_ALL, "") == NULL)
  56     return 1;
  57
  58   /* Test WEOF.  */
  59   is = iswpunct (WEOF);
  60   ASSERT (is == 0);
  61
  62   /* Test single-byte characters.
  63      POSIX specifies in
  64        <https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap07.html>
  65      no explicit list of punctuation or symbol characters.  */
  66   {
  67     int c;
  68
  69     for (c = 0; c < 0x100; c++)
  70       switch (c)
  71         {
  72         case '\t': case '\v': case '\f':
  73         case ' ': case '!': case '"': case '#': case '%':
  74         case '&': case '\'': case '(': case ')': case '*':
  75         case '+': case ',': case '-': case '.': case '/':
  76         case '0': case '1': case '2': case '3': case '4':
  77         case '5': case '6': case '7': case '8': case '9':
  78         case ':': case ';': case '<': case '=': case '>':
  79         case '?':
  80         case 'A': case 'B': case 'C': case 'D': case 'E':
  81         case 'F': case 'G': case 'H': case 'I': case 'J':
  82         case 'K': case 'L': case 'M': case 'N': case 'O':
  83         case 'P': case 'Q': case 'R': case 'S': case 'T':
  84         case 'U': case 'V': case 'W': case 'X': case 'Y':
  85         case 'Z':
  86         case '[': case '\\': case ']': case '^': case '_':
  87         case 'a': case 'b': case 'c': case 'd': case 'e':
  88         case 'f': case 'g': case 'h': case 'i': case 'j':
  89         case 'k': case 'l': case 'm': case 'n': case 'o':
  90         case 'p': case 'q': case 'r': case 's': case 't':
  91         case 'u': case 'v': case 'w': case 'x': case 'y':
  92         case 'z': case '{': case '|': case '}': case '~':
  93           /* c is in the ISO C "basic character set".  */
  94           buf[0] = (unsigned char) c;
  95           is = for_character (buf, 1);
  96           switch (c)
  97             {
  98             case ' ':
  99             case '0': case '1': case '2': case '3': case '4':
 100             case '5': case '6': case '7': case '8': case '9':
 101             case 'A': case 'B': case 'C': case 'D': case 'E':
 102             case 'F': case 'G': case 'H': case 'I': case 'J':
 103             case 'K': case 'L': case 'M': case 'N': case 'O':
 104             case 'P': case 'Q': case 'R': case 'S': case 'T':
 105             case 'U': case 'V': case 'W': case 'X': case 'Y':
 106             case 'Z':
 107             case 'a': case 'b': case 'c': case 'd': case 'e':
 108             case 'f': case 'g': case 'h': case 'i': case 'j':
 109             case 'k': case 'l': case 'm': case 'n': case 'o':
 110             case 'p': case 'q': case 'r': case 's': case 't':
 111             case 'u': case 'v': case 'w': case 'x': case 'y':
 112             case 'z':
 113               /* c is an alphanumeric or space character.  */
 114               ASSERT (is == 0);
 115               break;
 116             case '!': case '"': case '#': case '%':
 117             case '&': case '\'': case '(': case ')': case '*':
 118             case '+': case ',': case '-': case '.': case '/':
 119             case ':': case ';': case '<': case '=': case '>':
 120             case '?':
 121             case '[': case '\\': case ']': case '^': case '_':
 122             case '{': case '|': case '}': case '~':
 123               /* These characters are usually expected to be punctuation or
 124                  symbol characters.  */
 125               ASSERT (is != 0);
 126               break;
 127             default:
 128               ASSERT (is == 0);
 129               break;
 130             }
 131           break;
 132         }
 133   }
 134
 135   if (argc > 1)
 136     switch (argv[1][0])
 137       {
 138       case '0':
 139         /* C locale; tested above.  */
 140         /* These characters are not in the ISO C "basic character set", but
 141            are nevertheless usually expected to be punctuation or symbol
 142            characters.  */
 143         is = for_character ("$", 1);
 144         ASSERT (is != 0);
 145         is = for_character ("@", 1);
 146         ASSERT (is != 0);
 147         is = for_character ("`", 1);
 148         ASSERT (is != 0);
 149         return test_exit_status;
 150       }
 151
 152   return 1;
 153 }