Update to ncurses 5.7, with local changes reapplied.

This is around eight years worth of changes (previously we were around ncurses
5.2), too many to list - many bug fixes and also a few new functions.

A major bump for libcurses, libpanel, libform and libmenu.

ok deraadt

1 files changed, 32 insertions, 15 deletions

diff --git a/lib/libcurses/curs_scroll.3 b/lib/libcurses/curs_scroll.3
index df86d4792c9..b88c95ed1ea 100644
--- a/lib/libcurses/curs_scroll.3
+++ b/lib/libcurses/curs_scroll.3
@@ -1,7 +1,7 @@
-.\" $OpenBSD: curs_scroll.3,v 1.8 2003/05/14 08:55:19 jmc Exp $
+.\" $OpenBSD: curs_scroll.3,v 1.9 2010/01/12 23:21:59 nicm Exp $
 .\"
 .\"***************************************************************************
-.\" Copyright (c) 1998,2000 Free Software Foundation, Inc.                   *
+.\" Copyright (c) 1998-2005,2006 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            *
@@ -28,13 +28,19 @@
 .\" authorization.                                                           *
 .\"***************************************************************************
 .\"
-.\" $From: curs_scroll.3x,v 1.8 2000/07/01 17:54:23 tom Exp $
+.\" $Id: curs_scroll.3,v 1.9 2010/01/12 23:21:59 nicm Exp $
 .TH curs_scroll 3 ""
+.na
+.hy 0
 .SH NAME
-\fBscroll\fR, \fBscrl\fR, \fBwscrl\fR - scroll a \fBcurses\fR window
+\fBscroll\fR,
+\fBscrl\fR,
+\fBwscrl\fR - scroll a \fBcurses\fR window
+.ad
+.hy
 .SH SYNOPSIS
 \fB#include <curses.h>\fR
-
+.sp
 \fBint scroll(WINDOW *win);\fR
 .br
 \fBint scrl(int n);\fR
@@ -42,29 +48,40 @@
 \fBint wscrl(WINDOW *win, int n);\fR
 .br
 .SH DESCRIPTION
-The \fBscroll\fR routine scrolls the window up one line.  This involves moving
-the lines in the window data structure.  As an optimization, if the scrolling
+The \fBscroll\fR routine scrolls the window up one line.
+This involves moving
+the lines in the window data structure.
+As an optimization, if the scrolling
 region of the window is the entire screen, the physical screen may be scrolled
 at the same time.
-
+.PP
 For positive \fIn\fR, the \fBscrl\fR and \fBwscrl\fR routines scroll the
 window up \fIn\fR lines (line \fIi\fR+\fIn\fR becomes \fIi\fR); otherwise
-scroll the window down \fIn\fR lines.  This involves moving the lines in the
-window character image structure.  The current cursor position is not changed.
-
+scroll the window down \fIn\fR lines.
+This involves moving the lines in the
+window character image structure.
+The current cursor position is not changed.
+.PP
 For these functions to work, scrolling must be enabled via \fBscrollok\fR.
 .SH RETURN VALUE
 These routines return \fBERR\fR upon failure, and \fBOK\fR (SVr4 only specifies
 "an integer value other than \fBERR\fR") upon successful completion.
+.PP
+X/Open defines no error conditions.
+.PP
+This implementation returns an error
+if the window pointer is null, or
+if scrolling is not enabled in the window, e.g., with \fBscrollok\fP.
 .SH NOTES
 Note that \fBscrl\fR and \fBscroll\fR may be macros.
-
+.PP
 The SVr4 documentation says that the optimization of physically scrolling
 immediately if the scroll region is the entire screen "is" performed, not
-"may be" performed.  This implementation deliberately does not guarantee
-that this will occur, in order to leave open the possibility of smarter
+"may be" performed.
+This implementation deliberately does not guarantee
+that this will occur, to leave open the possibility of smarter
 optimization of multiple scroll actions on the next update.
-
+.PP
 Neither the SVr4 nor the XSI documentation specify whether the current
 attribute or
 current color-pair of blanks generated by the scroll function is zeroed.