In reply to @willghatch:matrix.org
Is Guix Shell something other than a way to run a shell in an environment with certain Guix packages, similar to nix-shell?

As far as I can tell, it is more than that, but there are many projects that work together and are difficult to tell apart as an outsider. What I have seen from the Guix project so far:

• A nix-shell equivalent
• A POSIX-shell implementation in Guix for bootstrapping
• A Guix implementation of all needed shell functionality to replace shell scripting in many places.

In reply to @piegames:matrix.org
I am also collection similar projects for comparison, I already found Guix Shell and Scheme Shell. Do you know some more? I also once found a Scheme or Scala interpreter in pure Bash that was worth a look, but I sadly can't find it anymore.

I, Pierre Baillet, give permission to license my contributions to Rash under MIT/Apache 2. I've used the email address pierre@baillet.name.

Is readline eating ^C before rash can bind it, then? It's very nice that rash uses readline so all my custom inputrc keys "just work" but this papercut bites me as well.

This allows eg the readline vi mode move <esc># to effectively save current line to history without running it as it would in bash.

I'm currently doing this:

(define old-prompt (current-prompt-function))
(define (my-prompt #:last-return-value [last-ret #f]
 #:last-return-index [last-ret-n 0])
	(printf "\033]0;~a\007" (path->string (current-directory)))
	(old-prompt)
)

(current-prompt-function my-prompt)

I know the answer to every filing on the repl is "the line editor needs work", I'm just filing this so it's documented. Maybe I'll even fix it (no promises, though).

When you tab-complete a filename in rash-repl that contains spaces, it does not get wrapped in double quotes and so executing the result is likely to cause a confusing error in most cases.

when I run the ls command in rash I get the following error

history-delete: index out of history range, -7 - 6
 context...:
 /usr/share/racket/pkgs/readline-lib/readline/rktrl.rkt:126:0: history-delete
 /usr/share/racket/pkgs/readline-lib/readline/pread.rkt:67:0: add-to-history
 /usr/share/racket/pkgs/readline-lib/readline/pread.rkt:137:0: do-multiline-chunk
 /usr/share/racket/pkgs/readline-lib/readline/pread.rkt:168:11

Sorry for the delayed reply. Busy...

This looks like, as with so many other issues on the tracker, an issue with the readline library (or rather Racket's FFI wrapper for it). I doubt this is specific to ls. Does this happen with every command you run?

At any rate, the real solution, like most other issues in the tracker, is that I need to write a better line editor. Some day I'll get to that...

On Sun, May 02, 2021 at 05:34:34PM -0700, Gavinok wrote:

when I run the ls command in rash I get the following error

history-delete: index out of history range, -7 - 6
 context...:
 /usr/share/racket/pkgs/readline-lib/readline/rktrl.rkt:126:0: history-delete
 /usr/share/racket/pkgs/readline-lib/readline/pread.rkt:67:0: add-to-history
 /usr/share/racket/pkgs/readline-lib/readline/pread.rkt:137:0: do-multiline-chunk
 /usr/share/racket/pkgs/readline-lib/readline/pread.rkt:168:11

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I have the same error. It happens every time I run ls, but it doesn't seem to be an issue with other commands. I've tried out cat, ps & git.