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