Here are the steps you asked for:
0. write a simple M file like the following "test.m"
_______________________
function p=prova(q)
p=q;
endfunction
_______________________
1. double click on it, gedit should regularly open it. (<-- this is very
important). Then close gedit.
2. from nautilus, right click on the same file, then
Properties/OpenWith/Add/use a custom command, and simply type vim ("vi
improved editor"). Confirm by clicking on Add to save changes and then
leave the "Properties" dialog by clicking on [close].
3. Now double click on the file again. You expect that nautilus launches
vim this time. If your system behaves like mine, you will get the
"stupid" warning.
4. If you cancel back the settings that you have modified from the
Propertied dialog, everything works well back again.
My questions:
- why does Nautilus trigger the famous warning for "Vim" and not for "gedit"?
The file name and content did not change at all!
- what is special in gedit, that makes Nautilus not complain, and what is wrong
with Vim? (try setting any other editor than Vim as a default, and you will
always get the "stupid warning"; originally I found the problem after
installing "SciTe")
My impression is that the problem is in that "something" that Nautilus
does or modifies(it creates .xml files, isn't it?) in order to set a new
application as a default, and this "something" is not operating well
especially when the implied extension (.m in our case) corresponds to
many different mime types (Objective C and Matlab/Octave txt files).
Probably these .xml files (or whatever) are written in such a way that
they only work if the file content is of one, preferred, mime type. I
have the impression that in the .m case the favourite mime type could be
the Obejective-C one, but I could not test this because I don't know how
to write a single line of that language (sorry).
Hope this helps to go further, and thank you all very much.
Lurix.
PS. my uname -a:
Linux axerino 2.6.20-16-generic #2 SMP Thu Jun 7 20:19:32 UTC 2007 i686
GNU/Linux
--
Nautilus gives incorrect warning when opening files of .m extension
https://bugs.launchpad.net/bugs/112228
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