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# strtok.c

Go to the documentation of this file.

    00001 /*****************************************************************************************
    00002  Copyright (c) 2002 The UbixOS Project
    00003  All rights reserved.
    00004
    00005 Redistribution and use in source and binary forms, with or without modification, are
    00006 permitted provided that the following conditions are met:
    00007
    00008 Redistributions of source code must retain the above copyright notice, this list of
    00009 conditions, the following disclaimer and the list of authors.  Redistributions in binary
    00010 form must reproduce the above copyright notice, this list of conditions, the following
    00011 disclaimer and the list of authors in the documentation and/or other materials provided
    00012 with the distribution. Neither the name of the UbixOS Project nor the names of its
    00013 contributors may be used to endorse or promote products derived from this software
    00014 without specific prior written permission.
    00015
    00016 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
    00017 EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
    00018 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
    00019 THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    00020 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
    00021 OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
    00022 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
    00023 TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
    00024 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    00025
    00026  $Id: strtok_8c-source.html 88 2016-01-12 00:11:29Z reddawg $
    00027
    00028 *****************************************************************************************/
    00029
    00030 #include <lib/string.h>
    00031 #include <ubixos/types.h>
    00032
    00033 char *strtok_r(char *s, const char *delim, char **last) {
    00034   char *spanp;
    00035   int c, sc;
    00036   char *tok;
    00037
    00038   if ((s == NULL) && ((s = *last) == NULL)) {
    00039     return(NULL);
    00040     }
    00041
    00042 cont:
    00043   c = *s++;
    00044   for (spanp = (char *)delim; (sc = *spanp++) != 0; ) {
    00045     if (c == sc) {
    00046       goto cont;
    00047       }
    00048     }
    00049   if (c == 0) {
    00050     *last = NULL;
    00051     return(NULL);
    00052     }
    00053   tok = s - 1;
    00054
    00055   for (;;) {
    00056     c = *s++;
    00057     spanp = (char *)delim;
    00058     do {
    00059       if ((sc = *spanp++) == c) {
    00060         if (c == 0) {
    00061           s = NULL;
    00062           }
    00063         else {
    00064           char *w = s - 1;
    00065           *w = '\0';
    00066           }
    00067         *last = s;
    00068         return(tok);
    00069         }
    00070       } while (sc != 0);
    00071     }
    00072   }
    00073
    00074 char *strtok(char *s, const char *delim) {
    00075   static char *last;
    00076   return (strtok_r(s, delim, &last));
    00077   }
    00078
    00079 /***
    00080  $Log: strtok_8c-source.html,v $
    00080  Revision 1.7  2006/12/15 17:47:07  reddawg
    00080  Updates
    00080
    00081  Revision 1.1.1.1  2006/06/01 12:46:16  reddawg
    00082  ubix2
    00083
    00084  Revision 1.2  2005/10/12 00:13:37  reddawg
    00085  Removed
    00086
    00087  Revision 1.1.1.1  2005/09/26 17:24:13  reddawg
    00088  no message
    00089
    00090  Revision 1.2  2004/05/19 03:46:32  reddawg
    00091  A Few Quick Hacks To Make Things Work
    00092
    00093  Revision 1.1.1.1  2004/04/15 12:07:11  reddawg
    00094  UbixOS v1.0
    00095
    00096  Revision 1.2  2004/04/13 16:36:33  reddawg
    00097  Changed our copyright, it is all now under a BSD-Style license
    00098
    00099  END
    00100  ***/
    00101
    00102