Subject: Re: bug#20626: Wishlist: M-x shell-command-on-rectangle-region

From: Stefan Monnier <[email-masked]>
Date: Thu, 25 Jun 2015 21:53:42 -0400

> What is not clear is how to distinguish "slow&complex" from the "fast-path"?
> Maybe with a new arg REGION?

I thought it would be pretty easy: if region-extract-function returns
a single contiguous chunk or multiple chunks.

        Stefan