* lib/c32iscntrl.c: New file.
* modules/c32iscntrl: New file.
* doc/posix-functions/iswcntrl.texi: Mention the new module.
+2020-01-25 Bruno Haible <bruno@clisp.org>
+
+ c32iscntrl: New module.
+ * lib/c32iscntrl.c: New file.
+ * modules/c32iscntrl: New file.
+ * doc/posix-functions/iswcntrl.texi: Mention the new module.
+
2020-01-25 Bruno Haible <bruno@clisp.org>
c32isblank: Add tests.
Portability problems not fixed by Gnulib:
@itemize
@item
-On Windows and 32-bit AIX platforms, @code{wchar_t} is a 16-bit type and therefore cannot
-accommodate all Unicode characters.
+On Windows and 32-bit AIX platforms, @code{wchar_t} is a 16-bit type and
+therefore cannot accommodate all Unicode characters.
+However, the Gnulib function @code{c32iscntrl}, provided by Gnulib module
+@code{c32iscntrl}, operates on 32-bit wide characters and therefore does not
+have this limitation.
@item
This function returns 0 for U+2028 (LINE SEPARATOR) and
U+2029 (PARAGRAPH SEPARATOR) on some platforms:
--- /dev/null
+/* Test 32-bit wide character for being a control character.
+ Copyright (C) 2020 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 2, 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>
+
+/* Specification. */
+#include <uchar.h>
+
+#define FUNC c32iscntrl
+#define WCHAR_FUNC iswcntrl
+#define UCS_FUNC uc_is_cntrl
+#include "c32is-impl.h"
--- /dev/null
+Description:
+c32iscntrl() function: test 32-bit wide character for being a control character.
+
+Files:
+lib/c32iscntrl.c
+lib/c32is-impl.h
+m4/mbrtoc32.m4
+
+Depends-on:
+uchar
+wchar
+wctype-h
+localcharset [test $REPLACE_MBSTATE_T = 1]
+streq [test $REPLACE_MBSTATE_T = 1]
+unictype/ctype-cntrl
+verify
+
+configure.ac:
+AC_REQUIRE([gl_UCHAR_H])
+AC_REQUIRE([gl_MBRTOC32_SANITYCHECK])
+gl_UCHAR_MODULE_INDICATOR([c32iscntrl])
+
+Makefile.am:
+lib_SOURCES += c32iscntrl.c
+
+Include:
+<uchar.h>
+
+License:
+LGPLv3+ or GPLv2
+
+Maintainer:
+Bruno Haible