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/* Test <mcel.h>
Copyright 2023-2025 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#include <config.h>
#include <mcel.h>
#include <locale.h>
#include "macros.h"
static wint_t
to_ascii (wint_t c)
{
return c & 0x7f;
}
static int
sgn (int i)
{
return (i > 0) - (i < 0);
}
static void
test_mcel_vs_mbrtoc32 (unsigned char uc, mcel_t c, size_t n, char32_t ch)
{
ASSERT (!c.err == (n <= MB_LEN_MAX));
ASSERT (c.err
? c.err == uc && c.ch == 0 && c.len == 1
: c.ch == ch && c.len == (n ? n : 1));
}
int
main (int argc, char *argv[])
{
/* configure should already have checked that the locale is supported. */
if (setlocale (LC_ALL, "") == NULL)
return 1;
mcel_t prev;
for (int ch = 0; ch < 0x80; ch++)
{
mcel_t c = mcel_ch (ch, 1);
ASSERT (c.ch == ch);
ASSERT (c.len == 1);
ASSERT (!c.err);
ASSERT (mcel_cmp (c, c) == 0);
ASSERT (mcel_tocmp (to_ascii, c, c) == 0);
if (ch)
{
ASSERT (mcel_cmp (prev, c) < 0);
ASSERT (mcel_cmp (c, prev) > 0);
ASSERT (mcel_tocmp (to_ascii, prev, c) < 0);
ASSERT (mcel_tocmp (to_ascii, c, prev) > 0);
}
ASSERT (mcel_isbasic (ch));
prev = c;
}
for (char ch = CHAR_MIN; ; ch++)
{
ASSERT (mcel_isbasic (ch) == (0 <= ch && ch <= 0x7f));
if (ch == CHAR_MAX)
break;
}
if (argc > 1 && argv[1][0] == '5')
{
/* Locale encoding is GB18030. */
#if (defined __GLIBC__ && __GLIBC__ == 2 && __GLIBC_MINOR__ >= 13 && __GLIBC_MINOR__ <= 15) || (GL_CHAR32_T_IS_UNICODE && (defined __FreeBSD__ || defined __NetBSD__ || defined __sun))
if (test_exit_status != EXIT_SUCCESS)
return test_exit_status;
fputs ("Skipping test: The GB18030 converter in this system's iconv is broken.\n", stderr);
return 77;
#endif
}
for (int ch = 0x80; ch < 0x200; ch++)
{
mcel_t c = mcel_ch (ch, 2);
ASSERT (c.ch == ch);
ASSERT (c.len == 2);
ASSERT (!c.err);
ASSERT (mcel_cmp (c, c) == 0);
ASSERT (mcel_tocmp (to_ascii, c, c) == 0);
ASSERT (mcel_cmp (prev, c) < 0);
ASSERT (mcel_cmp (c, prev) > 0);
ASSERT (mcel_tocmp (to_ascii, c, c) == 0);
int cmp = to_ascii (c.ch) ? -1 : 1;
ASSERT (sgn (mcel_tocmp (to_ascii, prev, c)) == cmp);
ASSERT (sgn (mcel_tocmp (to_ascii, c, prev)) == -cmp);
prev = c;
}
for (unsigned char err = 0x80; ; err++)
{
mcel_t c = mcel_err (err);
ASSERT (!c.ch);
ASSERT (c.len == 1);
ASSERT (c.err == err);
ASSERT (mcel_cmp (c, c) == 0);
ASSERT (mcel_cmp (prev, c) < 0);
ASSERT (mcel_cmp (c, prev) > 0);
ASSERT (mcel_tocmp (to_ascii, c, c) == 0);
ASSERT (mcel_tocmp (to_ascii, prev, c) < 0);
ASSERT (mcel_tocmp (to_ascii, c, prev) > 0);
prev = c;
if (err == (unsigned char) -1)
break;
}
for (int i = CHAR_MIN; i <= CHAR_MAX; i++)
for (int j = CHAR_MIN; j <= CHAR_MAX; j++)
for (int k = CHAR_MIN; k <= CHAR_MAX; k++)
{
char const ijk[] = {i, j, k};
mbstate_t mbs = {0};
char32_t ch;
size_t n = mbrtoc32 (&ch, ijk, sizeof ijk, &mbs);
mcel_t c = mcel_scan (ijk, ijk + sizeof ijk);
test_mcel_vs_mbrtoc32 (i, c, n, ch);
static char const terminator[] = "\r\n./";
for (int ti = 0; ti < sizeof terminator; ti++)
{
char t = terminator[ti];
if (i == t || j == t || k == t)
continue;
char const ijkt[] = {i, j, k, t};
mcel_t d = mcel_scant (ijkt, t);
ASSERT (c.ch == d.ch && c.err == d.err && c.len == d.len);
if (!t)
{
mcel_t z = mcel_scanz (ijkt);
ASSERT (d.ch == z.ch && d.err == z.err && d.len == z.len);
}
}
}
return test_exit_status;
}
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