.\"***************************************************************************
-.\" Copyright (c) 1998-2002,2003 Free Software Foundation, Inc. *
+.\" Copyright (c) 1998-2008,2010 Free Software Foundation, Inc. *
.\" *
.\" Permission is hereby granted, free of charge, to any person obtaining a *
.\" copy of this software and associated documentation files (the *
.\" authorization. *
.\"***************************************************************************
.\"
-.\" $Id: menu_pattern.3x,v 1.8 2003/05/10 20:22:01 tom Exp $
+.\" $Id: menu_pattern.3x,v 1.12 2010/07/31 16:08:48 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
+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.
-
+.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