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- /* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
- The author of the program may be contacted at ian@airs.com or
- c/o Cygnus Support, 48 Grove Street, Somerville, MA 02144.
- */
-
- #include "uucnfi.h"
-
- #if USE_RCS_ID
- const char _uuconf_split_rcsid[] = "$Id: split.c,v 1.5 1995/06/21 19:24:09 ian Rel $";
- #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;
- }
-