Re: key to yank text at point into minibuffer?

[Mathias Dahl]

>     I am curious, what do you use this for?
>
> Uh, as I said, to pick up a file name or URL (or other name) in a buffer,
> for use as minibuffer input.

Yeah yeah yeah, you explained that... :) I was more interested in the below:

> Example: You're in a SQL script on a line like "@some-long-file-name.sql".
> You use `C-x 4 f M-.' to pull that text into the minibuffer, to visit that
> file. This saves you selecting the text and pasting it into the minibuffer;
> that's all.

This was what I was curious about. I'm always interested in how other
Emacs users use Emacs to get things done in an effective way.