bug#12824: 24.2.50; Strange default string brought by M-n after `C-x C-v'

bug#12824: 24.2.50; Strange default string brought by M-n after `C-x C-v'

[Dani Moncayo]

Recipe from "emacs -Q":

  C-x b h i <RET> / * h e l l o C-x C-v M-n

I observe that `M-n' writes in the minibuffer a default argument "c:/*hello".

If I repeat the experiment changing "/*hello" with, for example,
"hello" or "/*hello/", no default argument is brought by `M-n'.

Is this a bug no?  If not, what is the rule here for getting a default argument?

TIA.


In GNU Emacs 24.2.50.1 (i386-mingw-nt6.1.7601)
 of 2012-10-29 on DANI-PC
Bzr revision: 110729 dancol@dancol.org-20121029172429-z2gio8grvel4rzrv
Windowing system distributor `Microsoft Corp.', version 6.1.7601
Configured using:
 `configure --with-gcc (4.7) --no-opt --enable-checking --cflags
 -I../../libs/libxpm-3.5.8/include -I../../libs/libxpm-3.5.8/src
 -I../../libs/libpng-1.4.10 -I../../libs/zlib-1.2.6
 -I../../libs/giflib-4.1.4-1/include -I../../libs/jpeg-6b-4/include
 -I../../libs/tiff-3.8.2-1/include
 -I../../libs/libxml2-2.7.8-w32-bin/include/libxml2
 -I../../libs/gnutls-3.0.16/include
 -I../../libs/libiconv-1.14-2-mingw32-dev/include'

Important settings:
  value of $LANG: ESN
  locale-coding-system: cp1252
  default enable-multibyte-characters: t

-- 
Dani Moncayo

bug#12824: 24.2.50; Strange default string brought by M-n after `C-x C-v'

[Glenn Morris]

Dani Moncayo wrote:

> Is this a bug no? If not, what is the rule here for getting a default
> argument?

It's just a guess, supplied by ffap-file-at-point.

bug#12824: 24.2.50; Strange default string brought by M-n after `C-x C-v'

[Dani Moncayo]

>> Is this a bug no? If not, what is the rule here for getting a default
>> argument?
>
> It's just a guess, supplied by ffap-file-at-point.

Well, I don't know how that function works, but I find the current
behavior annoying.

This is how I hit this bug: sometimes I open a C file, which begins
with a comment header at the very beginning of the file, like this:

/*******************
* blah blah blah...
**********************/

and when I open the file, I realize that that is not the file I want
to visit, and then intuitively I do "C-x C-v M-n".  Then I found quite
strange the "X:/*******************" I see in the minibuffer.


-- 
Dani Moncayo

bug#12824: 24.2.50; Strange default string brought by M-n after `C-x C-v'

[Glenn Morris]

Dani Moncayo wrote:

> Well, I don't know how that function works, but I find the current
> behavior annoying.

Probably you can set file-name-at-point-functions to nil to disable it.

bug#12824: 24.2.50; Strange default string brought by M-n after `C-x C-v'

[Dani Moncayo]

>> Well, I don't know how that function works, but I find the current
>> behavior annoying.
>
> Probably you can set file-name-at-point-functions to nil to disable it.

Ok, so my case is is a false positive.

Let's close this bug, then.  Thank you.

-- 
Dani Moncayo