Re: Adding major-mode selection to new buffer

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

Jun 28, 2022, 10:21 by bugs@gnu.support:

> * carlmarcos--- via Users list for the GNU Emacs text editor <> help-gnu-emacs@gnu.org> > [2022-06-28 01:51]:
>
> I am using this below to open up new temporary buffers with name
> assigned or with automatic name, and with the possibility to choose
> the major mode.
>

Why do you include a period for `lisp-mode' and `markdown-mode'?


> {C-u M-x rcd-temp-buffer RET} will ask for mode to be used
>
> {M-x rcd-temp-buffer RET}} will open new temporary buffer
>
> {M-x rcd-temp-buffer RET}} will open new temporary buffer
>
> {M-x rcd-temp-buffer-ask-name RET} will ask for buffer name
>
> {C-u M-x rcd-temp-buffer-ask-name RET} will ask for buffer name and
> for the mode
>
> Code:
>
> (defvar rcd-temp-buffer-name "RCD TEMPORARY BUFFER")
>
> (defvar rcd-temp-file-directory "~/tmp/")
>
> (defvar rcd-temp-buffer-mode-history nil)
>
> (defvar rcd-temp-buffer-modes '(("adoc-mode" . "adoc")
>  ("emacs-lisp-mode" . "el")
>  ("lisp-mode" . ".lisp")
>  ("markdown-mode" . ".md")
>  ("org-mode" . "org")
>  ("sql-mode" . "sql")
>  ("fundamental-mode" . "txt")
>  ("html-mode" . "html")))
>
> (defun rcd-temp-buffer (&optional name mode)
>  "Generate new temporary buffer."
>  (interactive "p")
>  (let* ((format (concat "*" rcd-temp-buffer-name "%s%s*"))
>  (buffer (if name (format format ": " name) (format format "" "")))
>  (file-name (concat rcd-temp-file-directory (format-time-string "%Y-%m-%d-%H:%M:%S.txt"))))
>  (switch-to-buffer (generate-new-buffer buffer))
>  (setq buffer-file-name file-name)
>  (if current-prefix-arg
>  (let* ((mode (completing-read
>  "Mode: "
>  (map-keys rcd-temp-buffer-modes) nil t nil
>  'rcd-temp-buffer-mode-history)))
>  (funcall (intern mode)))
>  (funcall (intern (or mode "fundamental-mode"))))
>  buffer-file-name))
>
> (defun rcd-temp-buffer-ask-name ()
>  "Generate new temporary buffer by asking for buffer name."
>  (interactive)
>  (rcd-temp-buffer
>  (read-from-minibuffer "Buffer name: ")))
>
> (global-set-key (kbd "<f5>") #'rcd-temp-buffer)
>
> -- 
> Jean
>
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