Re: Basic emacs lisp question

[Emanuel Berg <embe8573@student.uu.se>]

Thorsten Jolitz <tjolitz@gmail.com> writes:

> (defun process-diary-file () ...

Yeah, +1 for thing-at-point, very useful - but, that
function opens a file and echoes the first symbol. If
that is the purpose (?) of the function I think it
should close the buffer (if opened), and it should
save-excursion if there was such a buffer opened - and
the name/docstring should be changed to reflect the
purpose of the defun.

We can discuss programming all night long but it makes
more sense if we do it in the context of defuns that do
sensible things, not just for the sake of it...

let:

(let (a-var)
  (setq a-var 5)
  (message "%s" a-var) ) ; "5"

;; I think this is better:
(let ((a-var 5))
  ;; here, do something else that involves a-var
  (message "%s" a-var) ) ; "5"

(message "%s" a-var)     ; error, no a-var (good)

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