[racket] programmatic file editing

Hello Neil V,

On Wed, Jun 6, 2012 at 7:26 PM, Neil Van Dyke <neil at neilvandyke.org> wrote:

> ...
>

>
 #:insert
>  `(
>   ;; Add a missing #lang line to the top of the file:
>   (0 "#lang setup/infotab\n")
>
> ...
> I thought I'd bounce this off anyone who was interested to see if I missed
> some useful feature that's easier to implement from the start than to
> implement after.
>
>

Sorry if I just didn't get it right, but wouldn't it be useful to have a
conditional insert?
For instance, it would make sense to insert a #lang line only when there
isn't one already.

Maybe there are other ways to accomplish it without adding more stuff to
your language that I just didn't think of for the moment.

[]'s

Rodolfo Carvalho
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