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@(#)mbrune.3 8.2 (Berkeley) 4/19/94
$FreeBSD: src/lib/libc/locale/mbrune.3,v 1.15 2003/02/06 11:04:46 charnier Exp $
.Dd April 19, 1994 .Dt MBRUNE 3 .Os .Sh NAME .Nm mbrune , .Nm mbrrune , .Nm mbmb .Nd multibyte rune support for C .Sh LIBRARY .Lb libc .Sh SYNOPSIS n 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 f Em The x 4.4 .Dq rune functions have been deprecated in favour of the .Tn ISO C99 extended multibyte and wide character facilities and should not be used in new applications. .Ef Consider working with wide characters instead, and using .Xr wcschr 3 , .Xr wcsrchr 3 , and .Xr wcsstr 3 instead of these functions.
p These routines provide the corresponding functionality of .Fn strchr , .Fn strrchr and .Fn strstr for multibyte strings.
p 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 .
p 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 .
p 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.
p The .Fn mbrrune function returns a pointer to the character, or .Dv NULL if the character does not appear in the string.
p 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 4 , .Xr utf2 4 , .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 .