39 lines
1.2 KiB
C
39 lines
1.2 KiB
C
/*
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* Copyright (c) 2011, 2012 Jonas 'Sortie' Termansen.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* string/strtok_r.c
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* Extract tokens from strings.
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*/
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#include <string.h>
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char* strtok_r(char* str, const char* delim, char** saveptr)
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{
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if ( !str && !*saveptr )
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return NULL;
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if ( !str )
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str = *saveptr;
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str += strspn(str, delim); // Skip leading
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if ( !*str )
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return *saveptr = NULL;
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size_t amount = strcspn(str, delim);
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if ( str[amount] )
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*saveptr = str + amount + 1;
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else
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*saveptr = NULL;
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str[amount] = '\0';
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return str;
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}
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