Re: Backspace problem on VMS

[Christopher Faylor <cgf-idd at cygwin dot com>]

On Sat, Jul 26, 2003 at 06:52:08PM +0200, Michael Lemke wrote:
>>On Thu, Jul 24, 2003 at 10:05:52PM -0400, Larry Hall wrote:
>>>Hai Hong wrote:
>>>>I'm having a problem in which the backspace doesn't work as it should
>>>>when I telnet into a VMS machine while I'm in an xterm session.
>>>>Instead of deleting the character, my cursor jump to the beginning of
>>>>the line.  The DELETE key doesn't work either.  I've checked an made
>>>>sure that my TERM environment is set to VT100, which is what I used in
>>>>the Windows program SecureCRT without any problem.  Also, I don't have
>>>>any problem telnetting into a Unix machine.  Is there anything that I
>>>>should do to make it work?    I've been Googling both the Web and
>>>>newsgroup and couldn't anything regarding this issue.
>>>
>>>Cygwin's default (and best supported) terminal setting is 'cygwin'.
>>>Sorry, I know next to nothing about VMS so I can't direct you further
>>>on how to make the target VMS machine understand the 'cygwin' terminal
>>>settings.  But this information should help guide you to a line of
>>>research which will offer a solution I hope.
>>
>>In this case, (and most cases, really) the TERM variable should just be
>>left as is.  It is set to "cygwin" when you are running from the console
>>and it should be set to "xterm" when you're running from an xterm.
>>
>>On VMS, CTRL-H means "go to beginning of line".  So, undoubtedly xterm
>>is interpreting the [<-] key as a backspace.  I'm sure that google would
>>be able to help in redefining this key to something else (like DEL).
>>
>
>Correct, VMS wants a real VT100 or successors.  Anything that doesn't
>behave like one is almost unusable.  One approach with Cygwin is to
>use rxvt and put this in your ~/.Xdefaults file:
>
>Rxvt.backspacekey: DEC
>Rxvt.cutchars: " "
>Rxvt.keysym.0xff7f: \eOP
>Rxvt.keysym.0xffaf: \eOQ
>Rxvt.keysym.0xffaa: \eOR
>Rxvt.keysym.0xffad: \eOS
>
>Rxvt.keysym.0xff95: \eOw
>Rxvt.keysym.0xff97: \eOx
>Rxvt.keysym.0xff9a: \eOy
>Rxvt.keysym.0xffab: \eOl
>
>Rxvt.keysym.0xff96: \eOt
>Rxvt.keysym.0xff9d: \eOu
>Rxvt.keysym.0xff98: \eOv
>
>Rxvt.keysym.0xff9c: \eOq
>Rxvt.keysym.0xff99: \eOr
>Rxvt.keysym.0xff9b: \eOs
>
>Rxvt.keysym.0xff9e: \eOp
>Rxvt.keysym.0xff9f: \eOn
>Rxvt.keysym.0xff8d: \eOM
>
>You will need to set 
>   stty erase ^? 
>in bash if you also want to use cygwin with rxvt/xterm.

None of the above will affect xterm, which is what the original message
was talking about.

cgf

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