On Tue, Nov 17, 2009 at 10:32:33AM +0200, thus spake a...@gursey.gov.tr:
> Hello,
>
> I am using Emacs mode for Gap.
>
> The only way I know to send the file I work to gap-mode is
>
> C-u M-x gap
>
> This sends the whole file to gap-mode and executes it.
>
> I have used Maple via an emacs mode which I have got from
>
> http://www.mapleprimes.com/blog/joe-riel/emacs-mode-for-maple
>
> In this Maple mode, it was possible to send a single line to maple mode,
> a region, or a function, or buffer etc. Among the features were
> highlighting...
>
> Does the emacs mode for gap do these?
>
No. I think that a modern gap mode that has these features would be a
great idea.
> Or, does anyone have his version of these features?
>
Well, I use the following hack. I'm not exactly an elisp expert so I'm sure
there is a better way of doing this but you may find the following useful:
-- 8< -------- Begin Elisp code
(defun nea-send-string-to-gap (string)
"Send the the string to an already running gap process. The output is
displayed in the process' buffer."
(interactive "sString to send to GAP (Include final \`;\')")
(set-process-filter (get-process "gap") 'gap-output-filter)
(save-window-excursion
(set-buffer "*gap*")
(goto-char (point-max))
(process-send-string "gap" (concat string "\n"))))
;; The name of the temp file should probably be randomly chosen.
;;; Haven't really used this command much.
(defun nea-send-region-to-gap-as-file (begin end)
"Have GAP read the contents of the region as a file."
(interactive "r")
(let ((temp-gap-file "/tmp/tmp.gap"))
(write-region begin end temp-gap-file)
(send-string-to-gap-normally (concat "Read(\"" temp-gap-file "\");\n"))))
(defun nea-send-region-to-gap (begin end &optional arg)
"Send region to gap."
(interactive "r\nP")
(let ((string (buffer-substring begin end)))
(save-window-excursion
(set-buffer "*gap*")
(goto-char (point-max))
(send-string-to-gap string arg))))
(defun nea-send-line-to-gap (&optional arg)
"Send current line to GAP."
(interactive "P")
(send-region-to-gap (line-beginning-position) (line-end-position) arg))
(defun nea-get-last-gap-output ()
"Scrap the last output from the gap buffer"
(interactive)
(save-excursion
(set-buffer "*gap*")
(let ((pt (point))
(pmark (progn (goto-char (process-mark (get-buffer-process "*gap*")))
(forward-line 0)
(point-marker)))
output)
(goto-char pmark)
(search-backward-regexp gap-prompt-regexp nil t)
(forward-line 1)
(setq output (buffer-substring-no-properties
(point) pmark))
(goto-char pt)
output)))
;; The following is an example of how to use nea-get-last-gap-output
(defun nea-ins-gap ()
"Insert the last output in buffer."
(interactive)
(end-of-line)
(let ((string (nea-get-last-gap-output)))
(if (string-match "
." (nea-get-last-gap-output))
(setq string (format "\n#==>\n %s;\n#<==" string))
(setq string (format " #==> %s" string )))
(insert string)))
;; I use the following key bindings:
(define-key gap-mode-map "\C-c\C-s" 'nea-send-string-to-gap)
(define-key gap-mode-map "\C-c\C-l" 'nea-send-line-to-gap)
(define-key gap-mode-map "\C-c\C-r" 'nea-send-region-to-gap)
(define-key gap-mode-map "\C-c\C-f" 'nea-send-region-to-gap-as-file)
(define-key gap-mode-map "\C-ci" 'nea-ins-gap)
-- 8< -------- End Elisp code
> Thanks a lot,
>
> kursat
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