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Re: Problem with function keys codes with vt100 emulation


The terminal emulation model is what it is. There's one for the Cygwin console window, another for RXVT and yet another for xterm (under XFree86/Cygwin).

The TERM variable serves to convey the indication of which terminal emulator is active to software such as Vim, Emacs, programs linked with the "readline" library (BASH, e.g.), etc.

So changing TERM is effectively just lying to the software that cares about terminal escape codes. It does not dictate how the terminal emulation software behaves, either in response to output escape codes or in generating escape codes for things like the function or arrow keys.

I don't know what's up with "captoinfo," but you'll need to give us more details if you want help with that.

Randall Schulz
Mountain View, CA USA

At 12:51 2002-11-06, Reza Roodsari wrote:
Hi I've spent two days investigating this and sorry if this has been
answered already.  I was not able to find any references.

The problem I have is that the cygwin terminal window which runs the bash
shell is generating the wrong key codes when function keys, such as f1, f2,
etc, are pressed.

Ordinarily the terminal starts out with TERM=cygwin.  cygwin terminal
emulation correctly produces the \E[[A for f1, \E[[B for f2, and other
function keys.  I then change TERM to vt100 and expect to get \EOP for f1,
\EOQ for f2, etc but still get the old cygwin mode key codes.

Looking into the /etc/termcap file shows that vt100 terminal mode should
produce \EOP for f1.

I am not exactly sure what the problem is but when I run captoinfo on
/etc/termcap I get a bunch of errors reported.  This may be an unrelated

My version of cygwin is 1.3.12, dated 2002-07-06.

I would like to know if this is a bug and if so whether there is a fix.

Any help would be appreciated.

Thanks in advance.

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