-'\" t
+.\"***************************************************************************
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+.\"***************************************************************************
+.\"
+.\" $Id: menu_pattern.3x,v 1.13 2010/12/04 18:40:45 tom Exp $
.TH menu_pattern 3X ""
.SH NAME
-\fBmenu_pattern\fR - get and set a menu's pattern buffer
+\fBmenu_pattern\fR \- get and set a menu's pattern buffer
.SH SYNOPSIS
\fB#include <menu.h>\fR
.br
.br
.SH DESCRIPTION
Every menu has an associated pattern match buffer. As input events that are
-printable ASCII characters come in, they are appended to this match buffer
-and tested for a match, as described in \fBmenu_driver\fR(3x).
-
+printable characters come in, they are appended to this match buffer
+and tested for a match, as described in \fBmenu_driver\fR(3X).
+.PP
The function \fBset_menu_pattern\fR sets the pattern buffer for the given menu
and tries to find the first matching item. If it succeeds, that item becomes
-current; if not, the current item does not change.
-
+current; if not, the current item does not change.
+.PP
The function \fBmenu_pattern\fR returns the pattern buffer of the given
\fImenu\fR.
.SH RETURN VALUE
-The function \fBmenu_pattern\fR returns \fBNULL\fR on error. The function
-\fBset_menu_pattern\fR may return the following error codes:
+The function \fBmenu_pattern\fR returns a pointer, which is \fBNULL\fR if the \fImenu\fP parameter is \fBNULL\fP.
+Otherwise, it is a pointer to a string which is empty if no pattern has been set.
+It does not set errno.
+.PP
+The function \fBset_menu_pattern\fR may return the following error codes:
.TP 5
-\fBE_OK\fR
+.B E_OK
The routine succeeded.
.TP 5
-\fBE_SYSTEM_ERROR\fR
-System error occurred (see \fBerrno\fR).
-.TP 5
-\fBE_BAD_ARGUMENT\fR
+.B E_BAD_ARGUMENT
Routine detected an incorrect or out-of-range argument.
.TP 5
-\fBE_NO_MATCH\fR
+.B E_BAD_STATE
+Routine was called from an initialization or termination function.
+.TP 5
+.B E_NOT_CONNECTED
+No items are connected to menu.
+.TP 5
+.B E_NO_MATCH
Character failed to match.
+.TP 5
+.B E_SYSTEM_ERROR
+System error occurred (see \fBerrno\fR).
.SH SEE ALSO
\fBcurses\fR(3X), \fBmenu\fR(3X).
.SH NOTES
.SH AUTHORS
Juergen Pfeifer. Manual pages and adaptation for new curses by Eric
S. Raymond.
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