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Annotation of coherent/g/usr/lib/uucp/tay104/uuconf/split.c, revision 1.1.1.1

1.1       root        1: /* split.c
                      2:    Split a string into tokens.
                      3: 
                      4:    Copyright (C) 1992 Ian Lance Taylor
                      5: 
                      6:    This file is part of the Taylor UUCP uuconf library.
                      7: 
                      8:    This library is free software; you can redistribute it and/or
                      9:    modify it under the terms of the GNU Library General Public License
                     10:    as published by the Free Software Foundation; either version 2 of
                     11:    the License, or (at your option) any later version.
                     12: 
                     13:    This library is distributed in the hope that it will be useful, but
                     14:    WITHOUT ANY WARRANTY; without even the implied warranty of
                     15:    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
                     16:    Library General Public License for more details.
                     17: 
                     18:    You should have received a copy of the GNU Library General Public
                     19:    License along with this library; if not, write to the Free Software
                     20:    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
                     21: 
                     22:    The author of the program may be contacted at [email protected] or
                     23:    c/o Infinity Development Systems, P.O. Box 520, Waltham, MA 02254.
                     24:    */
                     25: 
                     26: #include "uucnfi.h"
                     27: 
                     28: #if USE_RCS_ID
                     29: const char _uuconf_split_rcsid[] = "$Id: split.c,v 1.1 93/07/30 08:07:33 bin Exp Locker: bin $";
                     30: #endif
                     31: 
                     32: #include <ctype.h>
                     33: 
                     34: /* Split a string into tokens.  The bsep argument is the separator to
                     35:    use.  If it is the null byte, white space is used as the separator,
                     36:    and leading white space is discarded.  Otherwise, each occurrence
                     37:    of the separator character delimits a field (and thus some fields
                     38:    may be empty).  The array and size arguments may be used to reuse
                     39:    the same memory.  This function is not tied to uuconf; the only way
                     40:    it can fail is if malloc or realloc fails.  */
                     41: 
                     42: int
                     43: _uuconf_istrsplit (zline, bsep, ppzsplit, pcsplit)
                     44:      register char *zline;
                     45:      int bsep;
                     46:      char ***ppzsplit;
                     47:      size_t *pcsplit;
                     48: {
                     49:   size_t i;
                     50: 
                     51:   i = 0;
                     52: 
                     53:   while (TRUE)
                     54:     {
                     55:       if (bsep == '\0')
                     56:        {
                     57:          while (isspace (BUCHAR (*zline)))
                     58:            ++zline;
                     59:          if (*zline == '\0')
                     60:            break;
                     61:        }
                     62: 
                     63:       if (i >= *pcsplit)
                     64:        {
                     65:          char **pznew;
                     66:          size_t cnew;
                     67: 
                     68:          if (*pcsplit == 0)
                     69:            {
                     70:              cnew = 8;
                     71:              pznew = (char **) malloc (cnew * sizeof (char *));
                     72:            }
                     73:          else
                     74:            {
                     75:              cnew = *pcsplit * 2;
                     76:              pznew = (char **) realloc ((pointer) *ppzsplit,
                     77:                                         cnew * sizeof (char *));
                     78:            }
                     79:          if (pznew == NULL)
                     80:            return -1;
                     81:          *ppzsplit = pznew;
                     82:          *pcsplit = cnew;
                     83:        }
                     84: 
                     85:       (*ppzsplit)[i] = zline;
                     86:       ++i;
                     87: 
                     88:       if (bsep == '\0')
                     89:        {
                     90:          while (*zline != '\0' && ! isspace (BUCHAR (*zline)))
                     91:            ++zline;
                     92:        }
                     93:       else
                     94:        {
                     95:          while (*zline != '\0' && *zline != bsep)
                     96:            ++zline;
                     97:        }
                     98: 
                     99:       if (*zline == '\0')
                    100:        break;
                    101: 
                    102:       *zline++ = '\0';
                    103:     }
                    104: 
                    105:   return i;
                    106: }

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