From: Bruno Haible Date: Sat, 15 Feb 2025 09:45:48 +0000 (+0100) Subject: isblank_l: New module. X-Git-Url: https://gitweb.git.savannah.gnu.org/gitweb/?a=commitdiff_plain;h=663152f16df9bd60129cd013b2595d087cbd73aa;p=gnulib.git isblank_l: New module. * lib/ctype.in.h: (isblank_l): New declaration. * lib/isblank_l.c: New file. * m4/isblank_l.m4: New file. * m4/ctype_h.m4 (gl_CTYPE_H): Test for isblank_l. (gl_CTYPE_H_REQUIRE_DEFAULTS): Initialize GNULIB_ISBLANK_L. (gl_CTYPE_H_DEFAULTS): Initialize HAVE_ISBLANK_L. * modules/ctype-h (Makefile.am): Substitute GNULIB_ISBLANK_L, HAVE_ISBLANK_L. * modules/isblank_l: New file. * tests/test-ctype-h-c++.cc: Check declaration of isblank_l. * doc/posix-functions/isblank_l.texi: Mention the new module. --- diff --git a/ChangeLog b/ChangeLog index 70cd270b03..43bcc49637 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,18 @@ +2025-02-15 Bruno Haible + + isblank_l: New module. + * lib/ctype.in.h: (isblank_l): New declaration. + * lib/isblank_l.c: New file. + * m4/isblank_l.m4: New file. + * m4/ctype_h.m4 (gl_CTYPE_H): Test for isblank_l. + (gl_CTYPE_H_REQUIRE_DEFAULTS): Initialize GNULIB_ISBLANK_L. + (gl_CTYPE_H_DEFAULTS): Initialize HAVE_ISBLANK_L. + * modules/ctype-h (Makefile.am): Substitute GNULIB_ISBLANK_L, + HAVE_ISBLANK_L. + * modules/isblank_l: New file. + * tests/test-ctype-h-c++.cc: Check declaration of isblank_l. + * doc/posix-functions/isblank_l.texi: Mention the new module. + 2025-02-15 Bruno Haible isalpha_l: Add tests. diff --git a/doc/posix-functions/isblank_l.texi b/doc/posix-functions/isblank_l.texi index a0bdd0d913..d40a21fa4f 100644 --- a/doc/posix-functions/isblank_l.texi +++ b/doc/posix-functions/isblank_l.texi @@ -4,15 +4,16 @@ POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9799919799/functions/isblank_l.html} -Gnulib module: --- +Gnulib module: isblank_l +@mindex isblank_l Portability problems fixed by Gnulib: @itemize +@item +This function is missing on many platforms: +FreeBSD 9.0, NetBSD 6.1, OpenBSD 6.1, Minix 3.1.8, AIX 6.1, HP-UX 11, Solaris 11.3, Cygwin 2.5.x, mingw, MSVC 14, Android 4.4. @end itemize Portability problems not fixed by Gnulib: @itemize -@item -This function is missing on many platforms: -FreeBSD 6.0, NetBSD 5.0, OpenBSD 6.0, Minix 3.1.8, AIX 5.1, HP-UX 11, Solaris 11.3, Cygwin 1.7.x, mingw, MSVC 14, Android 4.4. @end itemize diff --git a/lib/ctype.in.h b/lib/ctype.in.h index 13c867150b..ad52ed0cf2 100644 --- a/lib/ctype.in.h +++ b/lib/ctype.in.h @@ -54,7 +54,7 @@ #error "Please include config.h first." #endif -#if @GNULIB_ISALNUM_L@ || @GNULIB_ISALPHA_L@ +#if @GNULIB_ISALNUM_L@ || @GNULIB_ISALPHA_L@ || @GNULIB_ISBLANK_L@ /* Get locale_t. */ # include #endif @@ -112,6 +112,24 @@ _GL_WARN_ON_USE (isblank, "isblank is unportable - " # endif #endif +/* Return non-zero if c is a blank, i.e. a space or tab character. */ +#if @GNULIB_ISBLANK_L@ +# if !@HAVE_ISBLANK_L@ +_GL_FUNCDECL_SYS (isblank_l, int, (int c, locale_t locale), + _GL_ARG_NONNULL ((2))); +# endif +_GL_CXXALIAS_SYS (isblank_l, int, (int c, locale_t locale)); +# if __GLIBC__ >= 2 +_GL_CXXALIASWARN (isblank_l); +# endif +#elif defined GNULIB_POSIXCHECK +# undef isblank_l +# if HAVE_RAW_DECL_ISBLANK_L +_GL_WARN_ON_USE (isblank_l, "isblank_l is unportable - " + "use gnulib module isblank_l for portability"); +# endif +#endif + #endif /* _@GUARD_PREFIX@_CTYPE_H */ #endif #endif /* _@GUARD_PREFIX@_CTYPE_H */ diff --git a/lib/isblank_l.c b/lib/isblank_l.c new file mode 100644 index 0000000000..cada2f5458 --- /dev/null +++ b/lib/isblank_l.c @@ -0,0 +1,36 @@ +/* Test whether a single-byte character is blank. + Copyright (C) 2025 Free Software Foundation, Inc. + + This file is free software: you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + This file 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 Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with this program. If not, see . */ + +/* Written by Bruno Haible , 2025. */ + +#include + +/* Specification. */ +#include + +#define FUNC isblank_l +#define GLOBAL_FUNC isblank +#define C_FUNC(c) \ + (c == ' ' || c == '\t') +/* Documentation: + */ +#if defined __MINGW32__ +/* mingw lacks _isblank_l. */ +# define WINDOWS_FUNC(c,l) C_FUNC(c) +#else +# define WINDOWS_FUNC _isblank_l +#endif +#include "is_l-impl.h" diff --git a/m4/ctype_h.m4 b/m4/ctype_h.m4 index e2f8798a74..926fce3212 100644 --- a/m4/ctype_h.m4 +++ b/m4/ctype_h.m4 @@ -1,5 +1,5 @@ # ctype_h.m4 -# serial 11 +# serial 12 dnl Copyright (C) 2009-2025 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -16,7 +16,7 @@ AC_DEFUN_ONCE([gl_CTYPE_H], dnl Check for declarations of anything we want to poison if the dnl corresponding gnulib module is not in use. gl_WARN_ON_USE_PREPARE([[#include - ]], [isalnum_l isalpha_l isblank]) + ]], [isalnum_l isalpha_l isblank isblank_l]) ]) # gl_CTYPE_MODULE_INDICATOR([modulename]) @@ -39,6 +39,7 @@ AC_DEFUN([gl_CTYPE_H_REQUIRE_DEFAULTS], gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ISALNUM_L]) gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ISALPHA_L]) gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ISBLANK]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ISBLANK_L]) ]) m4_require(GL_MODULE_INDICATOR_PREFIX[_CTYPE_H_MODULE_INDICATOR_DEFAULTS]) AC_REQUIRE([gl_CTYPE_H_DEFAULTS]) @@ -50,4 +51,5 @@ AC_DEFUN([gl_CTYPE_H_DEFAULTS], HAVE_ISALNUM_L=1; AC_SUBST([HAVE_ISALNUM_L]) HAVE_ISALPHA_L=1; AC_SUBST([HAVE_ISALPHA_L]) HAVE_ISBLANK=1; AC_SUBST([HAVE_ISBLANK]) + HAVE_ISBLANK_L=1; AC_SUBST([HAVE_ISBLANK_L]) ]) diff --git a/m4/isblank_l.m4 b/m4/isblank_l.m4 new file mode 100644 index 0000000000..2b7b13f82a --- /dev/null +++ b/m4/isblank_l.m4 @@ -0,0 +1,23 @@ +# isblank_l.m4 +# serial 1 +dnl Copyright (C) 2009-2025 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. +dnl This file is offered as-is, without any warranty. + +AC_DEFUN([gl_FUNC_ISBLANK_L], +[ + AC_REQUIRE([gl_CTYPE_H_DEFAULTS]) + + dnl Persuade glibc to declare isblank_l(). + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + + AC_CHECK_FUNCS_ONCE([isblank_l]) + if test $ac_cv_func_isblank_l = no; then + HAVE_ISBLANK_L=0 + fi + + dnl Prerequisites of lib/isblank_l.c. + AC_REQUIRE([gt_FUNC_USELOCALE]) +]) diff --git a/modules/ctype-h b/modules/ctype-h index 9e9c1c5c65..f3c5131acd 100644 --- a/modules/ctype-h +++ b/modules/ctype-h @@ -33,9 +33,11 @@ ctype.h: ctype.in.h $(top_builddir)/config.status $(CXXDEFS_H) $(WARN_ON_USE_H) -e 's/@''GNULIB_ISALNUM_L''@/$(GNULIB_ISALNUM_L)/g' \ -e 's/@''GNULIB_ISALPHA_L''@/$(GNULIB_ISALPHA_L)/g' \ -e 's/@''GNULIB_ISBLANK''@/$(GNULIB_ISBLANK)/g' \ + -e 's/@''GNULIB_ISBLANK_L''@/$(GNULIB_ISBLANK_L)/g' \ -e 's/@''HAVE_ISALNUM_L''@/$(HAVE_ISALNUM_L)/g' \ -e 's/@''HAVE_ISALPHA_L''@/$(HAVE_ISALPHA_L)/g' \ -e 's/@''HAVE_ISBLANK''@/$(HAVE_ISBLANK)/g' \ + -e 's/@''HAVE_ISBLANK_L''@/$(HAVE_ISBLANK_L)/g' \ -e '/definitions of _GL_FUNCDECL_RPL/r $(CXXDEFS_H)' \ -e '/definition of _GL_WARN_ON_USE/r $(WARN_ON_USE_H)' \ $(srcdir)/ctype.in.h > $@-t diff --git a/modules/isblank_l b/modules/isblank_l new file mode 100644 index 0000000000..3c134207c2 --- /dev/null +++ b/modules/isblank_l @@ -0,0 +1,33 @@ +Description: +isblank_l() function: test whether a single-byte character is blank. + +Files: +lib/isblank_l.c +lib/is_l-impl.h +m4/isblank_l.m4 +m4/intl-thread-locale.m4 + +Depends-on: +ctype-h +locale-h +extensions + +configure.ac: +gl_FUNC_ISBLANK_L +gl_CONDITIONAL([GL_COND_OBJ_ISBLANK_L], [test $HAVE_ISBLANK_L = 0]) +gl_MODULE_INDICATOR([isblank_l]) +gl_CTYPE_MODULE_INDICATOR([isblank_l]) + +Makefile.am: +if GL_COND_OBJ_ISBLANK_L +lib_SOURCES += isblank_l.c +endif + +Include: + + +License: +LGPLv2+ + +Maintainer: +all diff --git a/tests/test-ctype-h-c++.cc b/tests/test-ctype-h-c++.cc index cd8ef91d38..0f463e3de6 100644 --- a/tests/test-ctype-h-c++.cc +++ b/tests/test-ctype-h-c++.cc @@ -36,6 +36,10 @@ SIGNATURE_CHECK (GNULIB_NAMESPACE::isalpha_l, int, (int, locale_t)); SIGNATURE_CHECK (GNULIB_NAMESPACE::isblank, int, (int)); #endif +#if GNULIB_TEST_ISBLANK_L +SIGNATURE_CHECK (GNULIB_NAMESPACE::isblank_l, int, (int, locale_t)); +#endif + int main ()