Hello everyone,
Being obsessed with shells and wanting very badly to have a racket
shell, I've spent a good chunk of time over the last couple of weeks
working on shell-related stuff for Racket. First is a library for shell
pipelines (that may also contain racket functions). The interface is
roughly like this (assuming `my-grep` is a racket function that
implements grep):
(run-pipeline '(ls -l) (list my-grep "foobar") '(wc -l))
The docs for that library are here [1].
Additionally, I've got a rough sketch of a line-based syntax for writing shell
scripts or using a shell repl with embedded racket code. Right now its syntax
looks like this:
#lang rash
ls -l | @my-grep "foobar" | wc -l
;; A line is not wrapped in a pipeline if it starts with &
;; You can get back into #lang rash syntax with @rash{} or @rash/out{}
&@(define ttys @rash/out{ls /dev | grep tty})
I want to change the line syntax a lot (especially to not need &), but I
decided to put it up (with some very rough documentation) here [2] to
get some feedback on what people think of it.
I'm really interested in people's thoughts about both parts and ways people
think they could be improved.
Thanks,
William Hatch
[1] http://docs.racket-lang.org/shell-pipeline/index.html
[2] http://docs.racket-lang.org/rash/index.html
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