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-.\" Copyright (c) 1993
-.\"	The Regents of the University of California.  All rights reserved.
-.\"
-.\" This code is derived from software contributed to Berkeley by
-.\" Paul Borman at Krystal Technologies.
-.\"
-.\" 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. All advertising materials mentioning features or use of this software
-.\"    must display the following acknowledgement:
-.\"	This product includes software developed by the University of
-.\"	California, Berkeley and its contributors.
-.\" 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.
-.\"
-.\"	@(#)mbrune.3	8.2 (Berkeley) 4/19/94
-.\" $FreeBSD$
-.\"
-.Dd August 21, 2004
-.Dt MBRUNE 3
-.Os
-.Sh NAME
-.Nm mbrune ,
-.Nm mbrrune ,
-.Nm mbmb
-.Nd multibyte rune support for C
-.Sh LIBRARY
-.Lb libc
-.Sh SYNOPSIS
-.In rune.h
-.Ft char *
-.Fn mbrune "const char *string" "rune_t rune"
-.Ft char *
-.Fn mbrrune "const char *string" "rune_t rune"
-.Ft char *
-.Fn mbmb "const char *string" "char *pattern"
-.Sh DESCRIPTION
-.Bf Em
-The
-.Bx 4.4
-.Dq rune
-functions are obsolete and may not be supported in future releases.
-.Ef
-Applications should use the
-.Tn ISO
-C99
-.Xr wcschr 3 ,
-.Xr wcsrchr 3 ,
-and
-.Xr wcsstr 3
-functions instead.
-.Pp
-These routines provide the corresponding functionality of
-.Fn strchr ,
-.Fn strrchr
-and
-.Fn strstr
-for multibyte strings.
-.Pp
-The
-.Fn mbrune
-function locates the first occurrence of
-.Fn rune
-in the string pointed to by
-.Fa string .
-The terminating
-.Dv NUL
-character is considered part of the string.
-If
-.Fa rune
-is
-.Ql \e0 ,
-.Fn mbrune
-locates the terminating
-.Ql \e0 .
-.Pp
-The
-.Fn mbrrune
-function
-locates the last occurrence of
-.Fa rune
-in the string
-.Fa string .
-If
-.Fa rune
-is
-.Ql \e0 ,
-.Fn mbrune
-locates the terminating
-.Ql \e0 .
-.Pp
-The
-.Fn mbmb
-function locates the first occurrence of the null-terminated string
-.Fa pattern
-in the null-terminated string
-.Fa string .
-If
-.Fa pattern
-is the empty string,
-.Fn mbmb
-returns
-.Fa string ;
-if
-.Fa pattern
-occurs nowhere in
-.Fa string ,
-.Fn mbmb
-returns
-.Dv NULL ;
-otherwise
-.Fn mbmb
-returns a pointer to the first character of the first occurrence of
-.Fa pattern .
-.Sh RETURN VALUES
-The function
-.Fn mbrune
-returns a pointer to the located character, or
-.Dv NULL
-if the character does not appear in the string.
-.Pp
-The
-.Fn mbrrune
-function
-returns a pointer to the character, or
-.Dv NULL
-if the character does not appear in the string.
-.Pp
-The
-.Fn mbmb
-function
-returns a pointer to the
-.Fa pattern ,
-or
-.Dv NULL
-if the
-.Fa pattern
-does not appear in the string.
-.Sh SEE ALSO
-.Xr rune 3 ,
-.Xr setlocale 3 ,
-.Xr euc 5 ,
-.Xr utf8 5
-.Sh HISTORY
-The
-.Fn mbrune ,
-.Fn mbrrune ,
-and
-.Fn mbmb
-functions
-first appeared in Plan 9 from Bell Labs as
-.Fn utfrune ,
-.Fn utfrrune ,
-and
-.Fn utfutf .