`size-indication-mode' tweak

`size-indication-mode' tweak

[Drew Adams]

After the release:

How about considering this minor tweak to `size-indication-mode'?
The doc string would also need to be updated accordingly.

The idea is this: Whenever the region is active in transient-mark mode, the
size indication shows the size of the region, not the size of the buffer.

The implementation change is trivial - just use this for the
`size-indication-mode' part of `mode-line-position':

(size-indication-mode
 (8 ,(propertize
      (if (and transient-mark-mode mark-active)
          (format " %d chars" (abs (- (mark t) (point))))
        " of %I")
      'face (and transient-mark-mode mark-active 'region)
      'help-echo help-echo)))

where help-echo is bound as usual.

FYI - This library does that, as well as highlighting the column number when
the current column is greater than a given limit (option):
(http://www.emacswiki.org/cgi-bin/wiki/modeline-posn.el)

Re: `size-indication-mode' tweak

[Richard Stallman]

    The idea is this: Whenever the region is active in transient-mark mode, the
    size indication shows the size of the region, not the size of the buffer.

It might be a good idea, but let's not think about it now.

Re: `size-indication-mode' tweak

[Juri Linkov]

> After the release:
>
> How about considering this minor tweak to `size-indication-mode'?
> The doc string would also need to be updated accordingly.
>
> The idea is this: Whenever the region is active in transient-mark mode, the
> size indication shows the size of the region, not the size of the buffer.

BTW, sometimes I need to see the number of bytes in the region
in addition to the number of characters after typing M-=
`count-lines-region'.  This way I can see how many bytes this region
will occupy when saved on disk.

The same information could be displayed in the mode line using some new
customization for `size-indication-mode' after the release.

-- 
Juri Linkov
http://www.jurta.org/emacs/