Article View: vmsnet.tpu
Article #76^U versus ^X
From: williams
Date: Tue, 10 Nov 1992 13:13
Date: Tue, 10 Nov 1992 13:13
39 lines
2647 bytes
2647 bytes
> From: WVNET::IN%"ldgiltne@wsuhub.uc.twsu.edu" 10-NOV-1992 00:17:59.38
> Subj: Problems with SET GOLD KEY
>
> I have all the Ctrl keys defined that were not
> "reserved" by TPU or VMS.
...And a few that *are* reserved by VMS. See below.
>
> Both Ctrl-X and Ctrl-U acted as gold keys.
> Are these two keys tied together somehow?
Yes.
The VMS terminal driver uses ^U as an 'Un-type this line'
key -- it deletes to the beginning of the line.
^X is a little more subtle: DEC uses ^X for the 'clear
*all* pending input' key. If there is input in the
type-ahead buffer, it is cleared. If there is nothing in
the type-ahead buffer, then the terminal driver treats ^X as
if it were ^U.
As a matter of fact, when you press ^X, TPU will not see it.
The terminal driver will pass a ^U to TPU. For proof, use
the EVE command SHOW KEY, and press ^X. You will be told
that "CTRL/U is defined as blah blah blah".
All of this is on the assumption that you have a
more-or-less normal terminal setup. I suspect that if you
are running in PASTHRU or PASSALL mode (don't attempt this
at home :-), the ^X will be passed as is.
I hope this helps....
-Tom Williams
Computer Center Manager
Alderson-Broaddus College
WILLIAMS@AB.WVNET.EDU
Technical Details
Message-ID:
<01GQZ9KDAYOIA3CA70@WVNVMS.WVNET.EDU>Path:
arc1-ca.pugleaf.net!sparky!uunet!pipex!warwick!mrccrc!doc.ic.ac.uk!agate!spool.mu.edu!yale.edu!jvnc.net!rutgers!usc!sdd.hp.com!nigel.msen.com!emory!sol.ctr.columbia.edu!destroyer!news.iastate.edu!hobbes.physics.uiowa.edu!moe.ksu.ksu.edu!mccall!info-tpu-newsgate!listShow Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!sparky!uunet!pipex!warwick!mrccrc!doc.ic.ac.uk!agate!spool.mu.edu!yale.edu!jvnc.net!rutgers!usc!sdd.hp.com!nigel.msen.com!emory!sol.ctr.columbia.edu!destroyer!news.iastate.edu!hobbes.physics.uiowa.edu!moe.ksu.ksu.edu!mccall!info-tpu-newsgate!list From: williams@ab.wvnet.edu Newsgroups: vmsnet.tpu Subject: ^U versus ^X Message-ID: <01GQZ9KDAYOIA3CA70@WVNVMS.WVNET.EDU> Date: 10 Nov 92 13:13:41 GMT Reply-To: williams@ab.wvnet.edu Organization: The Internet Lines: 39 Return-Path: <TPU-Mgr@SHSU.edu> Errors-To: TPU-Mgr@SHSU.edu X-Listname: Text Processing Utility (TPU) Language Discussion List Return-Path: <!ab.wvnet.edu!williams@mccall.uucp> Resent-Message-ID: <9211102217.AA06954@depot.cis.ksu.edu> Resent-Date: Tue, 10 Nov 1992 16:12:15 CST Resent-From: info-tpu-newsgate@mccall.com Resent-To: info-tpu@shsu.edu X-Envelope-To: info-tpu-newsgate@mccall.uucp X-Vms-To: NET::"info-tpu-newsgate@mccall.uucp" X-Vms-Cc: ME Mime-Version: 1.0 Content-Transfer-Encoding: 7BIT