Re: problem with GNU Emacs shell mode

["Bart Schaefer" <schaefer@xxxxxxxxxxxxxxxxxxxxxxx>]

On Feb 27,  2:15pm, James B. Crigler wrote:
> Subject: Re: problem with GNU Emacs shell mode
> 
>  Bart> ;; Don't set TERM=dumb, it bugs zsh.
>  Bart> 
>  Bart> (require 'comint)
>  Bart> (defun comint-exec-1 (name buffer command switches)
	   [...]
>  Bart>   )
> 
> This also works.

I suspect this means that you normally use comint for emacs shell-mode,
and that's why the (setenv "TERM" ...) didn't work.  Here's an excerpt
from what I sent to zsh-workers, which will probably appear in the FAQ
in some form or other:

On Feb 27, 10:16am, Bart Schaefer wrote:
> On Feb 27, 10:32am, Peter Stephenson wrote:
> } 
> } 3.6: Why does zsh not work in an Emacs shell mode any more?
> } 
> }   Placing a
> } 
> }     (setenv "TERM" "emacs")
> } 
> }   in your ~/.emacs file seems to fix this.
> 
> This may not be universal, based on the discussion on zsh-users.  It
> appears to work for the default shell-mode (shell.el) but not for the
> enhanced shell-mode supplied by comint (comint.el).
> 
> Looking at the lisp code in comint.el, it appears emacs forces TERM=dumb
> for systems where emacs is compiled with terminfo, and TERM=emacs for
> those where it's compiled with termcap.  There's no hook to override
> this; you can only redefine comint-exec-1 as in the sample I sent, which
> is bad if comint gets upgraded.
> 
> [...] I'd add (via Alain Caron <alainc@xxxxxxxxx>):
> 
>    If none of the above works, place
> 
>       [[ -n "$EMACS" ]] && unsetopt zle
> 
>    in your $ZDOTDIR/.zshrc file.
> 
> If you want to say something about terminal mode:
> 
>    [[ -n "$EMACS" ]] && {
>      [[ "$TERM" = eterm ]] && TERM=vt100 || unsetopt zle
>    }