fill-paragraph from elisp

[Eike Kettner]

Hello list,

I want to insert some text from a database into a buffer. This should
happen with `fill-paraph' applied, and the string contains multiple
paragraphs. I came up with this (`descr' is the string):

(let ((beg (point)))
  (insert descr)
  (set-mark beg)
  (fill-paragraph nil t)
  (set-mark nil))

This works, but I'm not feeling confident with it. The documentation of
`set-mark' says this:

    ...Novice Emacs Lisp programmers often try to use the mark for the
    wrong purposes. ...

So.. I'm a novice elisp programmer. Is this a "wrong purpose"? What is
the idiomatic way to achieve this?

Thanks and regards
Eike

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