Re: Messages in el functions & the Mini-Buffer

[Emanuel Berg via Users list for the GNU Emacs text editor <help-gnu-emacs@gnu.org>]

Christopher Dimech wrote:

> When I introduce (message "Fuckup")

...

> in an Elisp function, does it always use the mini-buffer? Is there
> a command to output in a window buffer like when I use M-x
> describe function?

You can write such a general command, by studying this function:

(defun print-roll-outs (chainrings sprockets bsd tire)
  (let ((out-buffer (get-buffer-create "*gears*")))
    (with-current-buffer out-buffer
      (goto-char (point-max))
      (print-intro-data chainrings sprockets bsd tire)
      (let ((ros (all-roll-outs chainrings sprockets bsd tire)))
        (cl-loop for ro in ros do
                 (let ((c (   car   ro))
                       (s (   cadr  ro))
                       (r (cl-caddr ro)))
                   (insert (format "% 9d% 14d% 15.0f\n" c s r)) ))))
    (pop-to-buffer out-buffer) ))

In particular, `get-buffer-create', `with-current-buffer', `insert',
and `pop-to-buffer'.

Half source:

  https://dataswamp.org/~incal/emacs-init/bike.el

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