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7f0f7929ba
- Replaced ISO Latin 1 code #160 with a plain blank space (ASCII code #32) where necessary git-svn-id: file:///Users/olsen/Code/migration-svn-zu-git/logical-line-staging/clib2/trunk@15305 87f5fb63-7c3d-0410-a384-fd976d0f7a62
113 lines
3.1 KiB
C
113 lines
3.1 KiB
C
/*
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* $Id: string_strtok_r.c,v 1.4 2006-01-08 12:04:27 obarthel Exp $
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*
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* :ts=4
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*
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* Portable ISO 'C' (1994) runtime library for the Amiga computer
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* Copyright (c) 2002-2015 by Olaf Barthel <obarthel (at) gmx.net>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Neither the name of Olaf Barthel nor the names of contributors
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* may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _STDLIB_NULL_POINTER_CHECK_H
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#include "stdlib_null_pointer_check.h"
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#endif /* _STDLIB_NULL_POINTER_CHECK_H */
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/****************************************************************************/
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#ifndef _STRING_HEADERS_H
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#include "string_headers.h"
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#endif /* _STRING_HEADERS_H */
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/****************************************************************************/
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char *
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strtok_r(char *str, const char *separator_set,char ** state_ptr)
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{
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char * result = NULL;
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char * last;
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size_t size;
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assert( separator_set != NULL && state_ptr != NULL );
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#if defined(CHECK_FOR_NULL_POINTERS)
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{
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if(separator_set == NULL || state_ptr == NULL)
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{
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__set_errno(EFAULT);
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goto out;
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}
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}
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#endif /* CHECK_FOR_NULL_POINTERS */
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last = (*state_ptr);
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/* Did we get called before? Restart at the last valid position. */
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if(str == NULL)
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{
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str = last;
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/* However, we may have hit the end of the
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string already. */
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if(str == NULL)
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goto out;
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}
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last = NULL;
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/* Skip the characters which count as
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separators. */
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str += strspn(str, separator_set);
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if((*str) == '\0')
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goto out;
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/* Count the number of characters which aren't
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separators. */
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size = strcspn(str, separator_set);
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if(size == 0)
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goto out;
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/* This is where the search can resume later. */
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last = &str[size];
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/* If we didn't hit the end of the string already,
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skip the separator. */
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if((*last) != '\0')
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last++;
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/* This is the token we found; make sure that
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it looks like a valid string. */
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str[size] = '\0';
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result = str;
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out:
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if(state_ptr != NULL)
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(*state_ptr) = last;
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return(result);
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}
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