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49 lines
1.2 KiB
C
49 lines
1.2 KiB
C
/*
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* misc.c
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*
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* Author: ppessi <Pekka.Pessi@hut.fi>
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*
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* Copyright © 1993 AmiTCP/IP Group, <AmiTCP-group@hut.fi>
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* Helsinki University of Technology, Finland.
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*/
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#include <proto/exec.h>
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#include "base.h"
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/*
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* Get next token from string *stringp, where tokens are nonempty
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* strings separated by characters from delim.
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*
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* Writes NULs into the string at *stringp to end tokens.
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* delim need not remain constant from call to call.
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* On return, *stringp points past the last NUL written (if there might
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* be further tokens), or is NULL (if there are definitely no more tokens).
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*
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* If *stringp is NULL, strtoken returns NULL.
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*/
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char *strsep(register char **stringp, register const char *delim)
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{
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register char *s;
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register const char *spanp;
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register int c, sc;
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char *tok;
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if ((s = *stringp) == NULL)
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return (NULL);
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for (tok = s;;) {
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c = *s++;
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spanp = delim;
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do {
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if ((sc = *spanp++) == c) {
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if (c == 0)
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s = NULL;
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else
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s[-1] = 0;
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*stringp = s;
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return (tok);
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}
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} while (sc != 0);
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}
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}
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