Annotation of mandoc/compat_strsep.c, Revision 1.1
1.1 ! schwarze 1: #ifdef HAVE_CONFIG_H
! 2: #include "config.h"
! 3: #endif
! 4:
! 5: #ifdef HAVE_STRSEP
! 6:
! 7: int dummy;
! 8:
! 9: #else
! 10:
! 11: /* ($)OpenBSD: strsep.c,v 1.6 2005/08/08 08:05:37 espie Exp $ */
! 12:
! 13: /*-
! 14: * Copyright (c) 1990, 1993
! 15: * The Regents of the University of California. All rights reserved.
! 16: *
! 17: * Redistribution and use in source and binary forms, with or without
! 18: * modification, are permitted provided that the following conditions
! 19: * are met:
! 20: * 1. Redistributions of source code must retain the above copyright
! 21: * notice, this list of conditions and the following disclaimer.
! 22: * 2. Redistributions in binary form must reproduce the above copyright
! 23: * notice, this list of conditions and the following disclaimer in the
! 24: * documentation and/or other materials provided with the distribution.
! 25: * 3. Neither the name of the University nor the names of its contributors
! 26: * may be used to endorse or promote products derived from this software
! 27: * without specific prior written permission.
! 28: *
! 29: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 30: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 31: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 32: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 33: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 34: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 35: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 36: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 37: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 38: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 39: * SUCH DAMAGE.
! 40: */
! 41:
! 42: /*
! 43: * Get next token from string *stringp, where tokens are possibly-empty
! 44: * strings separated by characters from delim.
! 45: *
! 46: * Writes NULs into the string at *stringp to end tokens.
! 47: * delim need not remain constant from call to call.
! 48: * On return, *stringp points past the last NUL written (if there might
! 49: * be further tokens), or is NULL (if there are definitely no more tokens).
! 50: *
! 51: * If *stringp is NULL, strsep returns NULL.
! 52: */
! 53: char *
! 54: strsep(char **stringp, const char *delim)
! 55: {
! 56: char *s;
! 57: const char *spanp;
! 58: int c, sc;
! 59: char *tok;
! 60:
! 61: if ((s = *stringp) == NULL)
! 62: return (NULL);
! 63: for (tok = s;;) {
! 64: c = *s++;
! 65: spanp = delim;
! 66: do {
! 67: if ((sc = *spanp++) == c) {
! 68: if (c == 0)
! 69: s = NULL;
! 70: else
! 71: s[-1] = 0;
! 72: *stringp = s;
! 73: return (tok);
! 74: }
! 75: } while (sc != 0);
! 76: }
! 77: /* NOTREACHED */
! 78: }
! 79:
! 80: #endif
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