diff options
Diffstat (limited to 'gnu/libexec/uucp/libuuconf/split.c')
| -rw-r--r-- | gnu/libexec/uucp/libuuconf/split.c | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/gnu/libexec/uucp/libuuconf/split.c b/gnu/libexec/uucp/libuuconf/split.c new file mode 100644 index 000000000000..2a14753c382e --- /dev/null +++ b/gnu/libexec/uucp/libuuconf/split.c @@ -0,0 +1,106 @@ +/* split.c + Split a string into tokens. + + Copyright (C) 1992 Ian Lance Taylor + + This file is part of the Taylor UUCP uuconf library. + + This 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. + + This 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 this library; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + + The author of the program may be contacted at ian@airs.com or + c/o Infinity Development Systems, P.O. Box 520, Waltham, MA 02254. + */ + +#include "uucnfi.h" + +#if USE_RCS_ID +const char _uuconf_split_rcsid[] = "$Id: split.c,v 1.1 1993/08/05 18:25:54 conklin Exp $"; +#endif + +#include <ctype.h> + +/* Split a string into tokens. The bsep argument is the separator to + use. If it is the null byte, white space is used as the separator, + and leading white space is discarded. Otherwise, each occurrence + of the separator character delimits a field (and thus some fields + may be empty). The array and size arguments may be used to reuse + the same memory. This function is not tied to uuconf; the only way + it can fail is if malloc or realloc fails. */ + +int +_uuconf_istrsplit (zline, bsep, ppzsplit, pcsplit) + register char *zline; + int bsep; + char ***ppzsplit; + size_t *pcsplit; +{ + size_t i; + + i = 0; + + while (TRUE) + { + if (bsep == '\0') + { + while (isspace (BUCHAR (*zline))) + ++zline; + if (*zline == '\0') + break; + } + + if (i >= *pcsplit) + { + char **pznew; + size_t cnew; + + if (*pcsplit == 0) + { + cnew = 8; + pznew = (char **) malloc (cnew * sizeof (char *)); + } + else + { + cnew = *pcsplit * 2; + pznew = (char **) realloc ((pointer) *ppzsplit, + cnew * sizeof (char *)); + } + if (pznew == NULL) + return -1; + *ppzsplit = pznew; + *pcsplit = cnew; + } + + (*ppzsplit)[i] = zline; + ++i; + + if (bsep == '\0') + { + while (*zline != '\0' && ! isspace (BUCHAR (*zline))) + ++zline; + } + else + { + while (*zline != '\0' && *zline != bsep) + ++zline; + } + + if (*zline == '\0') + break; + + *zline++ = '\0'; + } + + return i; +} |
