Mercurial > hg > octave-kai > gnulib-hg
changeset 8106:2ff19298dd56
New module 'mbstok_r'.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Mon, 05 Feb 2007 03:30:43 +0000 |
parents | 43f02832d528 |
children | 412732860e52 |
files | ChangeLog MODULES.html.sh lib/mbstok_r.c lib/string_.h m4/mbstok_r.m4 m4/string_h.m4 modules/mbstok_r modules/string |
diffstat | 8 files changed, 162 insertions(+), 3 deletions(-) [+] |
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--- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,17 @@ +2007-02-04 Bruno Haible <bruno@clisp.org> + + New module mbstok_r. + * modules/mbstok_r: New file. + * lib/mbstok_r.c: New file. + * lib/string_.h (strtok_r): Change argument names to match the + comments. Add a conditional link warning. + (mbstok_r): New declaration. + * m4/mbstok_r.m4: New file. + * m4/string_h.m4 (gl_STRING_MODULE_INDICATOR_DEFAULTS): Initialize + GNULIB_MBSTOK_R. + * modules/string (string.h): Also substitute GNULIB_MBSTOK_R. + * MODULES.html.sh (Internationalization functions): Add mbstok_r. + 2007-02-04 Bruno Haible <bruno@clisp.org> New module mbsspn. @@ -7,7 +21,7 @@ (mbsspn): New declaration. * m4/mbsspn.m4: New file. * m4/string_h.m4 (gl_STRING_MODULE_INDICATOR_DEFAULTS): Initialize - GNULIB_MBSCSPN. + GNULIB_MBSSPN. * modules/string (string.h): Also substitute GNULIB_MBSSPN. * MODULES.html.sh (Internationalization functions): Add mbsspn.
--- a/MODULES.html.sh +++ b/MODULES.html.sh @@ -2168,6 +2168,7 @@ func_module mbscspn func_module mbspbrk func_module mbsspn + func_module mbstok_r func_module mbswidth func_module memcasecmp func_module memcoll
new file mode 100644 --- /dev/null +++ b/lib/mbstok_r.c @@ -0,0 +1,71 @@ +/* Tokenizing a string. + Copyright (C) 1999, 2002, 2006-2007 Free Software Foundation, Inc. + Written by Bruno Haible <bruno@clisp.org>, 2007. + + 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, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +#include <config.h> + +/* Specification. */ +#include <string.h> + +#if HAVE_MBRTOWC +# include "mbuiter.h" +#endif + +char * +mbstok_r (char *string, const char *delim, char **save_ptr) +{ +#if HAVE_MBRTOWC + if (MB_CUR_MAX > 1) + { + if (string == NULL) + { + string = *save_ptr; + if (string == NULL) + return NULL; /* reminder that end of token sequence has been + reached */ + } + + /* Skip leading delimiters. */ + string += mbsspn (string, delim); + + /* Found a token? */ + if (*string == '\0') + { + *save_ptr = NULL; + return NULL; + } + + /* Move past the token. */ + { + char *token_end = mbspbrk (string, delim); + + if (token_end != NULL) + { + /* NUL-terminate the token. */ + *token_end = '\0'; + *save_ptr = token_end + 1; + } + else + *save_ptr = NULL; + } + + return string; + } + else +#endif + return strtok_r (string, delim, save_ptr); +}
--- a/lib/string_.h +++ b/lib/string_.h @@ -325,8 +325,14 @@ See also strsep(). */ #if @GNULIB_STRTOK_R@ # if ! @HAVE_DECL_STRTOK_R@ -extern char *strtok_r (char *restrict __s, char const *restrict __sep, - char **restrict __lasts); +extern char *strtok_r (char *restrict s, char const *restrict delim, + char **restrict save_ptr); +# endif +# if defined GNULIB_POSIXCHECK +# undef strtok_r +# define strtok_r(s,d,p) \ + (GL_LINK_WARNING ("strtok_r cannot work correctly on character strings in multibyte locales - use mbstok_r if you care about internationalization"), \ + strtok_r (s, d, p)) # endif #elif defined GNULIB_POSIXCHECK # undef strtok_r @@ -409,6 +415,24 @@ extern size_t mbsspn (const char *string, const char *reject); #endif +#if @GNULIB_MBSTOK_R@ +/* Parse the character string STRING into tokens separated by characters in + the character string DELIM. + If STRING is NULL, the saved pointer in SAVE_PTR is used as + the next starting point. For example: + char s[] = "-abc-=-def"; + char *sp; + x = mbstok_r(s, "-", &sp); // x = "abc", sp = "=-def" + x = mbstok_r(NULL, "-=", &sp); // x = "def", sp = NULL + x = mbstok_r(NULL, "=", &sp); // x = NULL + // s = "abc\0-def\0" + + Caveat: It modifies the original string. + Caveat: These functions cannot be used on constant strings. + Caveat: The identity of the delimiting character is lost. */ +extern char * mbstok_r (char *string, const char *delim, char **save_ptr); +#endif + #ifdef __cplusplus }
new file mode 100644 --- /dev/null +++ b/m4/mbstok_r.m4 @@ -0,0 +1,16 @@ +# mbstok_r.m4 serial 1 +dnl Copyright (C) 2007 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. + +AC_DEFUN([gl_FUNC_MBSTOK_R], +[ + gl_PREREQ_MBSTOK_R +]) + +# Prerequisites of lib/mbstok_r.c. +AC_DEFUN([gl_PREREQ_MBSTOK_R], [ + AC_REQUIRE([gl_FUNC_MBRTOWC]) + : +])
--- a/m4/string_h.m4 +++ b/m4/string_h.m4 @@ -75,4 +75,5 @@ GNULIB_MBSCSPN=0; AC_SUBST([GNULIB_MBSCSPN]) GNULIB_MBSPBRK=0; AC_SUBST([GNULIB_MBSPBRK]) GNULIB_MBSSPN=0; AC_SUBST([GNULIB_MBSSPN]) + GNULIB_MBSTOK_R=0; AC_SUBST([GNULIB_MBSTOK_R]) ])
new file mode 100644 --- /dev/null +++ b/modules/mbstok_r @@ -0,0 +1,31 @@ +Description: +mbstok_r() function: split string into tokens, thread safe. + +Files: +lib/mbstok_r.c +m4/mbstok_r.m4 +m4/mbrtowc.m4 + +Depends-on: +mbuiter +string +mbsspn +mbspbrk +strtok_r + +configure.ac: +gl_FUNC_MBSTOK_R +gl_STRING_MODULE_INDICATOR([mbstok_r]) + +Makefile.am: +lib_SOURCES += mbstok_r.c + +Include: +<string.h> + +License: +LGPL + +Maintainer: +Bruno Haible +
--- a/modules/string +++ b/modules/string @@ -29,6 +29,7 @@ -e 's|@''GNULIB_MBSCSPN''@|$(GNULIB_MBSCSPN)|g' \ -e 's|@''GNULIB_MBSPBRK''@|$(GNULIB_MBSPBRK)|g' \ -e 's|@''GNULIB_MBSSPN''@|$(GNULIB_MBSSPN)|g' \ + -e 's|@''GNULIB_MBSTOK_R''@|$(GNULIB_MBSTOK_R)|g' \ -e 's|@''GNULIB_MEMMEM''@|$(GNULIB_MEMMEM)|g' \ -e 's|@''GNULIB_MEMPCPY''@|$(GNULIB_MEMPCPY)|g' \ -e 's|@''GNULIB_MEMRCHR''@|$(GNULIB_MEMRCHR)|g' \