diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/strsep.c | 98 |
1 files changed, 67 insertions, 31 deletions
diff --git a/lib/strsep.c b/lib/strsep.c index d63a12f56..3170e4867 100644 --- a/lib/strsep.c +++ b/lib/strsep.c @@ -1,36 +1,72 @@ -#include "config.h" -#include <string.h> - -char *xine_private_strsep(char **stringp, const char *delim) { - char *begin, *end; +/* $OpenBSD: strsep.c,v 1.6 2005/08/08 08:05:37 espie Exp $ */ - begin = *stringp; - if(begin == NULL) - return NULL; +/*- + * Copyright (c) 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ - if(delim[0] == '\0' || delim[1] == '\0') { - char ch = delim[0]; - - if(ch == '\0') - end = NULL; - else { - if(*begin == ch) - end = begin; - else if(*begin == '\0') - end = NULL; - else - end = strchr(begin + 1, ch); - } - } - else - end = strpbrk(begin, delim); +#include "config.h" +#include <string.h> +#include <stdio.h> - if(end) { - *end++ = '\0'; - *stringp = end; - } - else - *stringp = NULL; +/* + * Get next token from string *stringp, where tokens are possibly-empty + * strings separated by characters from delim. + * + * Writes NULs into the string at *stringp to end tokens. + * delim need not remain constant from call to call. + * On return, *stringp points past the last NUL written (if there might + * be further tokens), or is NULL (if there are definitely no more tokens). + * + * If *stringp is NULL, strsep returns NULL. + */ +char * +xine_private_strsep(char **stringp, const char *delim) +{ + char *s; + const char *spanp; + int c, sc; + char *tok; - return begin; + if ((s = *stringp) == NULL) + return (NULL); + for (tok = s;;) { + c = *s++; + spanp = delim; + do { + if ((sc = *spanp++) == c) { + if (c == 0) + s = NULL; + else + s[-1] = 0; + *stringp = s; + return (tok); + } + } while (sc != 0); + } + /* NOTREACHED */ } |