drracket indentation in vim

[Martin DeMello]

Is there a good way to call out to the indentation code drracket uses from within vim? even just manually piping the whole file through an indenter would be fine.

martin

[Alex Harsanyi]

Well, you could use the racket-mode from emacs to indent your files.  You will need to install GNU Emacs and racket-mode, and save the following in indent-racket-file.sh:

#!/bin/bash

FILE=$1

emacs --daemon --eval "

(progn

  (find-file \"$1\")

  (racket-mode)

  (indent-region (point-min) (point-max))

  (save-buffer (current-buffer))

  (kill-buffer (current-buffer))

  (setq confirm-kill-processes nil)

  (save-buffers-kill-terminal))"

You will than be able to indent racket files from the terminal by calling (and presumably you can setup vim to call this script).

    indent-racket-file.sh some-file.rkt

This script will indent the file in place but you could write the file to a temporary one and indent that.  You could also update the shell script to read from stdin, save to a temporary file, load it in Emacs and indent it than pipe it out -- this would make the script work as a pipe, but it will not be very efficient.

Also, if Emacs startup is slow, you can write an indent helper function in elisp:

;; save to racket-indent-helper.el

(defun indent-racket-file (name)

  (find-file name)

  (racket-mode)

  (indent-region (point-min) (point-max))

  (save-buffer (current-buffer))

  (kill-buffer (current-buffer)))

and start emacs as a background process:

    emacs --daemon --load racket-indent-helper.el

You can than update the shell script to be:

#!/bin/bash

FILE=$1

emacsclient --eval "(indent-racket-file \"$1\")"

Alex.