Re: [Texmacs-dev] The default mimeType seems overly aggressive.

[Darcy Shen]

> Some system will treat _text/plain_ very serious and override default

app for all text files, including .sh .py .cpp .h .conf .ini .xml

.html etc.

slbtty, could you explicitly list these systems?

---- On Mon, 2021-03-15 19:39:14 denis Raux <denis.raux@lix.polytechnique.fr> wrote ----

As I’m not a Linux user I cannot really see the tricky side effects.  As far I  remember desktop environment behaves differently according the linux distribution and desktop manager. As far I remember, it was quite difficult to overload the defaults mime types (defined for tex or historic texmacs)  and that is done by InitialPreference=99 for KDE Environment. Unfortunately this priority applies to every mime types defined  in texmacs.desktop.

On the most downloaded/used Linux distributions (Ubuntu), texmacs installation doesn’t change the default text/plain manager (at least with gnome desktop).

That’s said, texmacs is capable of dealing perfectly with text files but it’s true there are plenty others set in Linux systems.

I wonder if simply remove texmacs as support of text/plain cannot have side effect for example cut/paste functionality.

The solution would be to lower the texmacs priority for text/plain type in order to keep the current default. I’ll investigate in this way.

Denis

Le 13 mars 2021 à 16:29, Darcy Shen <sadhen@zoho.com.cn> a écrit :

I agree with you.

And here is your PR: https://github.com/texmacs/texmacs/pull/50

Thanks for your contribution.

If your PR actually fixes a bug, I would like to review and apply the patch to SVN.

-------

Denis, what's your opinion?

---- On Wed, 2021-02-17 16:56:47 slb <shenlebantongying@gmail.com> wrote ----

Hi,

According to `TeXmacs/misc/mime/texmacs.desktop` [0], texmacs will set

> MimeType=text/x-texmacs.doc;text/x-texmacs.sty;text/plain;text/x-tex;

It includes a _text/plain_ !

Some system will treat _text/plain_ very serious and override default
app for all text files, including .sh .py .cpp .h .conf .ini .xml
.html etc.

The reason is that text/x-python, text/x-c++src, text/html are all
subtype of _text/plain_.

TeXmacs is obviously not a general purpose text editor like VIM or
Emacs. I do not want to use TeXmacs as source code editor or editing
my configuration files.

Please remove _text/plain_.

---

In the same time, texmacs rely on scheme source codes, I suggest to
include an "x-scheme".

x-scheme are defined at xdg-shared-mime-info.xml [1] as below. The
shared-mime-info database should be included on most of the modern
GNU/linux distros.
<comment>Scheme source code</comment>
<sub-class-of type="text/plain"/>
<glob pattern="*.scm"/>
<glob pattern="*.ss"/>
</mime-type>
<mime-type type="text/x-scheme">

[0] http://svn.savannah.gnu.org/viewvc/texmacs/trunk/src/TeXmacs/misc/mime/texmacs.desktop?view=markup
[1] https://github.com/freedesktop/xdg-shared-mime-info/blob/103b3058353ee7ca2b154b2e3d26d12cd1de958d/data/freedesktop.org.xml.in#L6462
[3] Shared MIME-info Database specification from freedesktop.org
https://www.freedesktop.org/wiki/Specifications/shared-mime-info-spec/

Thanks for great software BTW :)
slbtty

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