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Re: [C-u M-q] -> unfill-paragraph


From: Tom Roche
Subject: Re: [C-u M-q] -> unfill-paragraph
Date: Sun, 13 Nov 2011 10:52:44 -0500
User-agent: GNU Emacs 23.3.1 (x86_64-pc-linux-gnu, GTK+ Version 2.24.4)

[Text-mode table enclosed--best viewed in monospace font.]

Tom Roche Thu, 10 Nov 2011 12:29:33 -0500
>> [How] to write one's own `fill-paragraph' fa├žade such that

>> * [my-fill-paragraph] would hide [the] emacs-provided
>>   `fill-paragraph'

>> * [my-fill-paragraph] could delegate to the emacs-provided
>>   `fill-paragraph' except when called with prefix argument

Scott Frazer Thu, 10 Nov 2011 14:00:14 -0500
> (defun my-fill-paragraph (&optional arg)
>   (interactive "P")
>   (let ((fill-column (if arg (point-max) fill-column)))
>     (fill-paragraph)))

> (global-set-key (kbd "M-q") 'my-fill-paragraph)

That works, except for region handling. What the code above does is

+----------------------------------------------------------------+
|                    | M-q                | C-u M-q              |
+----------------------------------------------------------------+
| no region selected | fill the paragraph | unfill the paragraph |
|                    | surrounding or     | surrounding or       |
|                    | following point    | following point      |
+----------------------------------------------------------------+
| region selected    | nothing            | unfills first (only) |
|                    |                    | paragraph in region  |
+----------------------------------------------------------------+

What I want is

+------------------------------------------------------------------+
|                    | M-q                 | C-u M-q               |
+------------------------------------------------------------------+
| no region selected | fill the paragraph  | unfill the paragraph  |
|                    | surrounding or      | surrounding or        |
|                    | following point     | following point       |
+------------------------------------------------------------------+
| region selected    | fill all paragraphs | unfill all paragraphs |
|                    | in the region       | in the region         |
+------------------------------------------------------------------+

Note that the wanted region-handling behaviors are those which one gets using 
M-x, i.e., with region selected

* `M-x fill-paragraph' fills all paragraphs in the selected region

* `M-x unfill-paragraph' unfills all paragraphs in the selected region

How to fix? Apologies for elisp lameness. One Of These Days I really gotta sit 
down and learn the tool. But right now, I gotta learn more fortran first :-(

Your assistance is appreciated, Tom Roche <address@hidden>



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