40 lines
842 B
C
40 lines
842 B
C
/*
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* This file is part of the UCB release of Plan 9. It is subject to the license
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* terms in the LICENSE file found in the top-level directory of this
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* distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
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* part of the UCB release of Plan 9, including this file, may be copied,
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* modified, propagated, or distributed except according to the terms contained
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* in the LICENSE file.
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*/
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#include <u.h>
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#include <libc.h>
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#define N 256
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char*
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jehanne_strtok(char *s, char *b)
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{
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static char *under_rock;
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char map[N], *os;
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jehanne_memset(map, 0, N);
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while(*b)
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map[*(uint8_t*)b++] = 1;
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if(s == 0)
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s = under_rock;
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while(map[*(uint8_t*)s++])
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;
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if(*--s == 0)
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return 0;
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os = s;
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while(map[*(uint8_t*)s] == 0)
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if(*s++ == 0) {
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under_rock = s-1;
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return os;
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}
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*s++ = 0;
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under_rock = s;
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return os;
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}
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