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author | Roland McGrath <roland@gnu.org> | 1996-02-08 10:00:34 +0000 |
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committer | Roland McGrath <roland@gnu.org> | 1996-02-08 10:00:34 +0000 |
commit | a482b5a5959240f5d196b32c4833ac48a03c02c3 (patch) | |
tree | 7792121005bdfc6a65efc4ed0e5dd53ae6796a17 /wcsmbs/wcstok.c | |
parent | 4ca84cff3b3e184164acde81deaad1fe52eabd14 (diff) | |
download | glibc-a482b5a5959240f5d196b32c4833ac48a03c02c3.tar.gz |
* Makefile (subdirs): Added wcsmbs.cvs/libc-960208
* wcsmbs: New directory of wide char/multibyte char functions from
drepper.
Diffstat (limited to 'wcsmbs/wcstok.c')
-rw-r--r-- | wcsmbs/wcstok.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/wcsmbs/wcstok.c b/wcsmbs/wcstok.c new file mode 100644 index 0000000000..191bbd5960 --- /dev/null +++ b/wcsmbs/wcstok.c @@ -0,0 +1,67 @@ +/* Copyright (C) 1995 Free Software Foundation, Inc. +This file is part of the GNU C Library. + +The GNU C Library is free software; you can redistribute it and/or +modify it under the terms of the GNU Library General Public License as +published by the Free Software Foundation; either version 2 of the +License, or (at your option) any later version. + +The GNU C Library 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 +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#include <wcstr.h> +#include <errno.h> + + +static wchar_t *olds = NULL; + +/* Parse WCS into tokens separated by characters in DELIM. + If WCS is NULL, the last string wcstok() was called with is + used. */ +wchar_t * +wcstok (wcs, delim) + register wchar_t *wcs; + register const wchar_t *delim; +{ + wchar_t *token; + + if (wcs == NULL) + { + if (olds == NULL) + { + errno = EINVAL; + return NULL; + } + else + wcs = olds; + } + + /* Scan leading delimiters. */ + wcs += wcsspn (wcs, delim); + if (*wcs == L'\0') + { + olds = NULL; + return NULL; + } + + /* Find the end of the token. */ + token = wcs; + wcs = wcspbrk (token, delim); + if (wcs == NULL) + /* This token finishes the string. */ + olds = NULL; + else + { + /* Terminate the token and make OLDS point past it. */ + *wcs = L'\0'; + olds = wcs + 1; + } + return token; +} |