* (string-rectangle (point-min) (point-max) "% ") behaves different in GNU and Xemacs
@ 2016-02-19 13:21 Uwe Brauer
2016-02-19 13:28 ` [SOLVED] (was: (string-rectangle (point-min) (point-max) "% ") behaves different in GNU and Xemacs) Uwe Brauer
0 siblings, 1 reply; 2+ messages in thread
From: Uwe Brauer @ 2016-02-19 13:21 UTC (permalink / raw)
To: emacs-devel
Hi
The documentation of that string-rectangle says
,----
|
| Replace rectangle contents with STRING on each line.
| The length of STRING need not be the same as the rectangle width.
`----
But: when I mark a region and call string-rectangle
I obtain
% Again when I mark a region and call string-rectangle
But *not*
%
Therefore I tried out the the following function in matlab mode.
(defun my-matlab-insert-simple-raw ()
"Change and insert the content of the *Matlab Help* buffer.
(Sometimes invoked with `matlab-shell-run-command'.)
`kill-empty-lines' put all results in one line, and `comment'
them out according to the `matlab' syntax."
(interactive)
(save-excursion
(let ((currentname (current-buffer)))
(switch-to-buffer "*MATLAB Help*")
(toggle-read-only nil)
(goto-char (point-min))
(delete-empty-lines-region (point-min) (point-max))
(goto-char (point-max))
(delete-backward-char 1 nil)
(goto-char (point-min))
(while (re-search-forward "=" nil t)
(kill-line nil))
(goto-char (point-min))
(string-rectangle (point-min) (point-max) "% ")
(switch-to-buffer currentname)
(insert-buffer "*MATLAB Help*"))))
This works fine in Xemacs and inserts a line such as
% s=5
In the buffer of question.
In GNU emacs however string-rectangle behaves differently:
it puts the % at the beginning of the line but deletes the rest!
I debugged the function and the result of
(string-rectangle (point-min) (point-max) "% ")
In my example was:
Result: 3 (#o3, #x3, ?\C-c)
while in Xemacs it was a simple nil.
Meanwhile I found another solution which allows me to do what I want,
but I would like to understand why
(string-rectangle (point-min) (point-max) "% ")
behaves differently in GNU emacs from Xemacs, and how could I
nevertheless use this function without deletion.
Uwe Brauer
^ permalink raw reply [flat|nested] 2+ messages in thread
* [SOLVED] (was: (string-rectangle (point-min) (point-max) "% ") behaves different in GNU and Xemacs)
2016-02-19 13:21 (string-rectangle (point-min) (point-max) "% ") behaves different in GNU and Xemacs Uwe Brauer
@ 2016-02-19 13:28 ` Uwe Brauer
0 siblings, 0 replies; 2+ messages in thread
From: Uwe Brauer @ 2016-02-19 13:28 UTC (permalink / raw)
To: emacs-devel
>>> "Uwe" == Uwe Brauer <oub@mat.ucm.es> writes:
> Hi
I just found out that rect.el has a (new) function
string-insert-rectangle
which behaves like the old string-rectangle in Xemacs.
Sorry for the noise.
Uwe Brauer
^ permalink raw reply [flat|nested] 2+ messages in thread
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2016-02-19 13:21 (string-rectangle (point-min) (point-max) "% ") behaves different in GNU and Xemacs Uwe Brauer
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