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Diffstat (limited to 'lib/libc/string/strsep.3')
-rw-r--r-- | lib/libc/string/strsep.3 | 135 |
1 files changed, 0 insertions, 135 deletions
diff --git a/lib/libc/string/strsep.3 b/lib/libc/string/strsep.3 deleted file mode 100644 index 9432a88..0000000 --- a/lib/libc/string/strsep.3 +++ /dev/null @@ -1,135 +0,0 @@ -.\" Copyright (c) 1990, 1991, 1993 -.\" The Regents of the University of California. All rights reserved. -.\" -.\" This code is derived from software contributed to Berkeley by -.\" Chris Torek. -.\" -.\" 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. -.\" 4. 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. -.\" -.\" @(#)strsep.3 8.1 (Berkeley) 6/9/93 -.\" $FreeBSD$ -.\" -.Dd December 5, 2008 -.Dt STRSEP 3 -.Os -.Sh NAME -.Nm strsep -.Nd separate strings -.Sh LIBRARY -.Lb libc -.Sh SYNOPSIS -.In string.h -.Ft char * -.Fn strsep "char **stringp" "const char *delim" -.Sh DESCRIPTION -The -.Fn strsep -function locates, in the string referenced by -.Fa *stringp , -the first occurrence of any character in the string -.Fa delim -(or the terminating -.Ql \e0 -character) and replaces it with a -.Ql \e0 . -The location of the next character after the delimiter character -(or NULL, if the end of the string was reached) is stored in -.Fa *stringp . -The original value of -.Fa *stringp -is returned. -.Pp -An -.Dq empty -field (i.e., a character in the string -.Fa delim -occurs as the first character of -.Fa *stringp ) -can be detected by comparing the location referenced by the returned pointer -to -.Ql \e0 . -.Pp -If -.Fa *stringp -is initially -.Dv NULL , -.Fn strsep -returns -.Dv NULL . -.Sh EXAMPLES -The following uses -.Fn strsep -to parse a string, and prints each token in separate line: -.Bd -literal -offset indent -char *token, *string, *tofree; - -tofree = string = strdup("abc,def,ghi"); -assert(string != NULL); - -while ((token = strsep(&string, ",")) != NULL) - printf("%s\en", token); - -free(tofree); -.Ed -.Pp -The following uses -.Fn strsep -to parse a string, containing tokens delimited by white space, into an -argument vector: -.Bd -literal -offset indent -char **ap, *argv[10], *inputstring; - -for (ap = argv; (*ap = strsep(&inputstring, " \et")) != NULL;) - if (**ap != '\e0') - if (++ap >= &argv[10]) - break; -.Ed -.Sh SEE ALSO -.Xr memchr 3 , -.Xr strchr 3 , -.Xr strcspn 3 , -.Xr strpbrk 3 , -.Xr strrchr 3 , -.Xr strspn 3 , -.Xr strstr 3 , -.Xr strtok 3 -.Sh HISTORY -The -.Fn strsep -function -is intended as a replacement for the -.Fn strtok -function. -While the -.Fn strtok -function should be preferred for portability reasons (it conforms to -.St -isoC ) -it is unable to handle empty fields, i.e., detect fields delimited by -two adjacent delimiter characters, or to be used for more than a single -string at a time. -The -.Fn strsep -function first appeared in -.Bx 4.4 . |