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From: page@ulowell.UUCP
Newsgroups: comp.sys.amiga
Subject: Bug in console.device?
Message-ID: <791@ulowell.UUCP>
Date: Thu, 27-Nov-86 12:38:03 EST
Article-I.D.: ulowell.791
Posted: Thu Nov 27 12:38:03 1986
Date-Received: Fri, 28-Nov-86 07:09:14 EST
Reply-To: page@ulowell.UUCP (Bob Page)
Distribution: net
Organization: University of Lowell
Lines: 27

When I use some escape sequences to move the cursor (like CSInD to move
the cursor back n spaces), the cursor moves across line boundaries like
you would expect.  For example, if I want to move across a word that is
split between lines because the end of the window cuts it, it will do
so correctly.

However, the delete character (CSInP) command does not cross line
boundaries.  In fact, if I'm at column 70 of 77 and say 'CSI10P' to
delete 10 characters, it deletes the first 8 (70 through 77) as expected
but then instead of deleting 0, 1 and 2 of the next line, it deletes
69, 68 and 67 of the same line!

Is this a bug, or a feature?  I would say a bug, since the whole idea
of 'console' device is that it is a virtual terminal, and the program
should not have to constantly worry about what size the window is.

Sigh.  My only regret (besides the fact that now I have to write
code to emulate what the console.device should be doing) is that I
just found this, and two months ago it might have been fixed in time
for V1.2.

..Bob

PS All references to 'CSI' mean hex 9b, the Control Sequence Introducer.
PPS I am using 1.2 (KS 33.180).
-- 
Bob Page,  U of Lowell CS Dept.      ulowell!page,  page@ulowell.CSNET