Re: Encoding error when calling a ruby script from Emacs using shell-command

[Peter Dyballa]

Am 01.09.2012 um 00:18 schrieb Marcelo de Moraes Serpa:

> The problem is that emacs' shell-command doesn't use the same environment,
> so it wasn't picking up the value of those three vars:
> 
> ✗ export | grep UTF
>    LANG=en_US.UTF-8
>    LC_ALL=en_US.UTF-8
>    LC_CTYPE=en_US.UTF-8
> 
> So, I did this:
> 
> (defun test ()
>  (setenv "LANG" "en_US.UTF-8")
>  (setenv "LC_ALL" "en_US.UTF-8")
>  (setenv "LC_CTYPE" "en_US.UTF-8")
>        (shell-command  "/Users/myself/.rvm/bin/rvm ruby-1.9.3-p194 do
> /usr/bin/rubyscript")
>        )

There are more options…

When you want GNU Emacs to run in an en_US.UTF-8 environment you can either use 
the three setenv statements in you init file or make the system use this to 
launch GNU Emacs:

        env LANG=en_US.UTF-8 LC_ALL=en_US.UTF-8 LC_CTYPE=en_US.UTF-8 emacs … &

If you want to restrict en_US.UTF-8 for the Ruby sub-shell you could also use 
without the setenv statements:

        (shell-command  "env LANG=en_US.UTF-8 LC_ALL=en_US.UTF-8 
LC_CTYPE=en_US.UTF-8 /Users/myself/.rvm/bin/rvm ruby-1.9.3-p194 do 
/usr/bin/rubyscript")

The best option, IMO, is though to set in your login script (~/.profile or 
~/.bash_profile) the en_US.UTF-8 environment. Then you'd have this available 
everywhere: in shells inside terminal emulations, the X Windows system, and its 
clients.

--
Greetings

  Pete

One cannot live by television, video games, top ten CDs, and dumb movies alone.
                                – Amiri Baraka, 1999