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+/* Test of c32isblank() function.
+ Copyright (C) 2020-2024 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 <uchar.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (c32isblank, int, (wint_t));
+
+#include <locale.h>
+#include <stdlib.h>
+#include <string.h>
+#include <wchar.h>
+
+#include "macros.h"
+
+/* Returns the value of c32isblank for the multibyte character s[0..n-1]. */
+static int
+for_character (const char *s, size_t n)
+{
+ mbstate_t state;
+ char32_t wc;
+ size_t ret;
+
+ memset (&state, '\0', sizeof (mbstate_t));
+ wc = (char32_t) 0xBADFACE;
+ ret = mbrtoc32 (&wc, s, n, &state);
+ ASSERT (ret == n);
+
+ return c32isblank (wc);
+}
+
+int
+main (int argc, char *argv[])
+{
+ int is;
+ char buf[4];
+
+ /* configure should already have checked that the locale is supported. */
+ if (setlocale (LC_ALL, "") == NULL)
+ return 1;
+
+ /* Test WEOF. */
+ is = c32isblank (WEOF);
+ ASSERT (is == 0);
+
+ /* Test single-byte characters.
+ POSIX specifies in
+ <https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap07.html>
+ that
+ - in all locales, the blank characters include the <space> and <tab>
+ characters,
+ - in the "POSIX" locale (which is usually the same as the "C" locale),
+ the blank characters include only the ASCII <space> and <tab>
+ characters. */
+ {
+ int c;
+
+ for (c = 0; c < 0x100; c++)
+ switch (c)
+ {
+ case '\t':
+ #if !(defined __FreeBSD__ || defined __NetBSD__)
+ case '\v':
+ #endif
+ case '\f':
+ case ' ': case '!': case '"': case '#': case '%':
+ case '&': case '\'': case '(': case ')': case '*':
+ case '+': case ',': case '-': case '.': case '/':
+ case '0': case '1': case '2': case '3': case '4':
+ case '5': case '6': case '7': case '8': case '9':
+ case ':': case ';': case '<': case '=': case '>':
+ case '?':
+ case 'A': case 'B': case 'C': case 'D': case 'E':
+ case 'F': case 'G': case 'H': case 'I': case 'J':
+ case 'K': case 'L': case 'M': case 'N': case 'O':
+ case 'P': case 'Q': case 'R': case 'S': case 'T':
+ case 'U': case 'V': case 'W': case 'X': case 'Y':
+ case 'Z':
+ case '[': case '\\': case ']': case '^': case '_':
+ case 'a': case 'b': case 'c': case 'd': case 'e':
+ case 'f': case 'g': case 'h': case 'i': case 'j':
+ case 'k': case 'l': case 'm': case 'n': case 'o':
+ case 'p': case 'q': case 'r': case 's': case 't':
+ case 'u': case 'v': case 'w': case 'x': case 'y':
+ case 'z': case '{': case '|': case '}': case '~':
+ /* c is in the ISO C "basic character set". */
+ buf[0] = (unsigned char) c;
+ is = for_character (buf, 1);
+ if (c == '\t' || c == ' ')
+ ASSERT (is != 0);
+ else
+ ASSERT (is == 0);
+ break;
+ }
+ }
+
+ if (argc > 1)
+ switch (argv[1][0])
+ {
+ case '0':
+ /* C locale; tested above. */
+ return 0;
+
+ case '1':
+ /* Locale encoding is ISO-8859-1 or ISO-8859-15. */
+ {
+ #if defined __GLIBC__
+ /* U+00A0 NO-BREAK SPACE */
+ is = for_character ("\240", 1);
+ ASSERT (is == 0);
+ #endif
+ /* U+00B7 MIDDLE DOT */
+ is = for_character ("\267", 1);
+ ASSERT (is == 0);
+ }
+ return 0;
+
+ case '2':
+ /* Locale encoding is EUC-JP. */
+ {
+ /* U+3002 IDEOGRAPHIC FULL STOP */
+ is = for_character ("\241\243", 2);
+ ASSERT (is == 0);
+ }
+ return 0;
+
+ case '3':
+ /* Locale encoding is UTF-8. */
+ {
+ #if defined __GLIBC__
+ /* U+00A0 NO-BREAK SPACE */
+ is = for_character ("\302\240", 2);
+ ASSERT (is == 0);
+ #endif
+ /* U+00B7 MIDDLE DOT */
+ is = for_character ("\302\267", 2);
+ ASSERT (is == 0);
+ #if defined __GLIBC__
+ /* U+202F NARROW NO-BREAK SPACE */
+ is = for_character ("\342\200\257", 3);
+ ASSERT (is == 0);
+ #endif
+ /* U+3002 IDEOGRAPHIC FULL STOP */
+ is = for_character ("\343\200\202", 3);
+ ASSERT (is == 0);
+ /* U+1D13D MUSICAL SYMBOL QUARTER REST */
+ is = for_character ("\360\235\204\275", 4);
+ ASSERT (is == 0);
+ /* U+E0020 TAG SPACE */
+ is = for_character ("\363\240\200\240", 4);
+ ASSERT (is == 0);
+ }
+ return 0;
+
+ case '4':
+ /* 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))
+ fputs ("Skipping test: The GB18030 converter in this system's iconv is broken.\n", stderr);
+ return 77;
+ #endif
+ {
+ #if defined __GLIBC__
+ /* U+00A0 NO-BREAK SPACE */
+ is = for_character ("\201\060\204\062", 4);
+ ASSERT (is == 0);
+ #endif
+ /* U+00B7 MIDDLE DOT */
+ is = for_character ("\241\244", 2);
+ ASSERT (is == 0);
+ #if defined __GLIBC__
+ /* U+202F NARROW NO-BREAK SPACE */
+ is = for_character ("\201\066\247\062", 4);
+ ASSERT (is == 0);
+ #endif
+ /* U+3002 IDEOGRAPHIC FULL STOP */
+ is = for_character ("\241\243", 2);
+ ASSERT (is == 0);
+ /* U+1D13D MUSICAL SYMBOL QUARTER REST */
+ is = for_character ("\224\062\301\065", 4);
+ ASSERT (is == 0);
+ /* U+E0020 TAG SPACE */
+ is = for_character ("\323\066\231\060", 4);
+ ASSERT (is == 0);
+ }
+ return 0;
+
+ }
+
+ return 1;
+}