Annotation of mandoc/compat_strsep.c, Revision 1.4
1.1 schwarze 1: #include "config.h"
2:
1.3 schwarze 3: #if HAVE_STRSEP
1.1 schwarze 4:
5: int dummy;
6:
7: #else
8:
1.4 ! schwarze 9: /* $Id$ */
! 10: /* $OpenBSD: strsep.c,v 1.7 2014/02/05 20:42:32 stsp Exp $ */
1.1 schwarze 11:
12: /*-
13: * Copyright (c) 1990, 1993
14: * The Regents of the University of California. All rights reserved.
15: *
16: * Redistribution and use in source and binary forms, with or without
17: * modification, are permitted provided that the following conditions
18: * are met:
19: * 1. Redistributions of source code must retain the above copyright
20: * notice, this list of conditions and the following disclaimer.
21: * 2. Redistributions in binary form must reproduce the above copyright
22: * notice, this list of conditions and the following disclaimer in the
23: * documentation and/or other materials provided with the distribution.
24: * 3. Neither the name of the University nor the names of its contributors
25: * may be used to endorse or promote products derived from this software
26: * without specific prior written permission.
27: *
28: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
29: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
32: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
36: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
37: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38: * SUCH DAMAGE.
39: */
40:
41: /*
42: * Get next token from string *stringp, where tokens are possibly-empty
43: * strings separated by characters from delim.
44: *
45: * Writes NULs into the string at *stringp to end tokens.
46: * delim need not remain constant from call to call.
47: * On return, *stringp points past the last NUL written (if there might
48: * be further tokens), or is NULL (if there are definitely no more tokens).
49: *
50: * If *stringp is NULL, strsep returns NULL.
51: */
52: char *
53: strsep(char **stringp, const char *delim)
54: {
55: char *s;
56: const char *spanp;
57: int c, sc;
58: char *tok;
59:
60: if ((s = *stringp) == NULL)
61: return (NULL);
62: for (tok = s;;) {
63: c = *s++;
64: spanp = delim;
65: do {
66: if ((sc = *spanp++) == c) {
67: if (c == 0)
68: s = NULL;
69: else
70: s[-1] = 0;
71: *stringp = s;
72: return (tok);
73: }
74: } while (sc != 0);
75: }
76: /* NOTREACHED */
77: }
78:
79: #endif
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