<div dir="ltr">Oh thanks, Kevin! This library is exactly i need for.<div>However, yet-another-implementation-of MIME loader might be useful for somebody, or i'm just wasted my time? :)</div><div>This was funny and interesting quest.</div> </div><div class="gmail_extra"> <div class="gmail_quote">2013/12/16 Kevin Krammer <<a href="mailto:krammer@kde.org" target="_blank">krammer@kde.org</a>> <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <div class="im">On Monday, 2013-12-16, 12:45:47, Alexander Kamyshnikov wrote: > I'm confused a bit. > So, you want to say that QMimeDatabase from Qt5 can be separately used in > Qt4? > I.e. i can just include this code in mine. </div>Not the Qt5 based code obviously. But Jerome said that there is a Qt4 port of the Qt5 code. I guess he is referring to <a href="https://github.com/pasnox/mimetypes-qt4" target="_blank">https://github.com/pasnox/mimetypes-qt4</a> Cheers, Kevin <div class="HOEnZb"><div class="h5"> > Also, i'm trying to google "qmimedatabase qt4", but find nothing > appropriate. > A more concrete search direction will be welcome. > P.S. Sorry, if i don't understand simple things. My english is not perfect > yet. > > > 2013/12/16 Kevin Krammer <<a href="mailto:krammer@kde.org">krammer@kde.org</a>> > > > On Monday, 2013-12-16, 11:41:34, Alexander Kamyshnikov wrote: > > > Hi Kevin. I'm glad to see KDE developer here because i'm KDE fan for > > > many > > > years :) > > > But this KDE MIME-support code hardly depend from other KDE stuff, isn't > > > > it? > > > > > I need "pure" Qt code - this is our software client requirement :/ So > > > i'm > > > wrote CMimeDatabase class. And just want to make it fully compliant with > > > freedesktop standart. > > > > Just wanted to point out that the Qt5 implementation was contributed by > > KDE > > developers, so additional to the Qt4 port of that code there is also "the > > original" Qt4 code available. > > > > But of course if you need a pure C++ implementation without Qt then > > writing a > > new one is your only choice. > > > > Cheers, > > Kevin > > > > > (see > > > > <a href="http://api.kde.org/4.0-api/kdelibs-apidocs/kdecore/html/kmimetype_8h_sourc" target="_blank">http://api.kde.org/4.0-api/kdelibs-apidocs/kdecore/html/kmimetype_8h_sourc</a> > > e > > . > > > > > html - > > > KUrl, KServiceType etc.) > > > > > > > > > 2013/12/14 Kevin Krammer <<a href="mailto:krammer@kde.org">krammer@kde.org</a>> > > > > > > > On Friday, 2013-12-13, 20:11:34, Jerome Leclanche wrote: > > > > > There is a Qt 4 port of this. > > > > > > > > And there should also be the original Qt4 based code in the kdelibs > > > > repository. > > > > > > > > Cheers, > > > > Kevin > > > > > > > > > As for windows support... I've been down that road, trying to > > > > > provide > > > > > it. Windows' feature set doesn't even sort of come close; it only > > > > > provides real mime types for a limited set of registered extensions, > > > > > and it doesn't provide any of the very useful features such as > > > > > subclassing, etc. In the end, I gave up and am only providing > > > > > xdg-based mime types. I think Qt made an excellent choice in > > > > providing > > > > > > > the xdg database itself. But if you choose against that, good luck. > > > > > > > > > > Anyway you can have a look at my python-based mimetype lib. Magic > > > > > matches are implemented on line 192 onwards. > > > > > > > > > > <a href="https://github.com/Adys/python-xdg/blob/master/xdg/mime.py" target="_blank">https://github.com/Adys/python-xdg/blob/master/xdg/mime.py</a> > > > > > > > > > > J. Leclanche > > > > > > > > > > > > > > > On Fri, Dec 13, 2013 at 7:56 PM, Alexander Kamyshnikov > > > > > > > > > > <<a href="mailto:axill777@gmail.com">axill777@gmail.com</a>> wrote: > > > > > > Yes, i had. But i decided to write my own implementation because: > > > > > > a) my project is forced to use Qt4 only (clients have very old > > > > > > > > versions of > > > > > > > > > > modified Red Hat with XDG_DATA_DIRS undefined); > > > > > > b) Windows support (through reading registry HKCR/.ext keys) is > > > > > > > > required; > > > > > > > > > > c) I'm very curious :) > > > > > > > > > > > > You think i'm should look deeply at the qmimedatabase.cpp however? > > > > > > > > > > > > > > > > > > 2013/12/13 Jerome Leclanche <<a href="mailto:adys.wh@gmail.com">adys.wh@gmail.com</a>> > > > > > > > > > > > >> Have you had a look at the Qt 5 mimetype module? > > > > > >> > > > > > >> <a href="http://qt-project.org/doc/qt-5.0/qtcore/qmimedatabase.html" target="_blank">http://qt-project.org/doc/qt-5.0/qtcore/qmimedatabase.html</a> > > > > > >> J. Leclanche > > > > > >> > > > > > >> > > > > > >> On Fri, Dec 13, 2013 at 7:35 PM, Alexander Kamyshnikov > > > > > >> > > > > > >> <<a href="mailto:axill777@gmail.com">axill777@gmail.com</a>> wrote: > > > > > >> > Hi all! > > > > > >> > I'm developing the implementation of MIME database in C++/Qt > > > > > >> > for > > > > > >> > one > > > > > >> > commercial program (requirement managment tool, if one will be > > > > > >> > interested). > > > > > >> > So my question is: the format of magic values to compare file > > > > > >> > header > > > > > >> > data > > > > > >> > with is not specified exactly in the spec. I mean the > > > > > > > > magic/match/value > > > > > > > > > >> > attribute. > > > > > >> > What exactly mean those magic strings from > > > > > >> > /usr/share/mime/packages/freedesktop.org.xml from my Kubuntu? > > > > > >> > 1) "\1\9" > > > > > >> > 2) "\376\067\0\043" > > > > > >> > 3) "\x8AMNG\x0D\x0A\x1A\x0A" > > > > > >> > Second is looks like octal number in C notation, third - > > > > > > > > hexadecimal, > > > > > > > > > >> > but > > > > > >> > about first i'm not sure. It is just "usual" decimal value? > > > > > >> > What format exactly should use magic values? > > > > > >> > Thanks for your help. WBR, Alexander > > > > > > > >> > P.S. Spec i'm using living here: > > <a href="http://standards.freedesktop.org/shared-mime-info-spec/shared-mime-info" target="_blank">http://standards.freedesktop.org/shared-mime-info-spec/shared-mime-info</a> > > > > > > > >> > -spec-latest.html#id2661973 P.S. <match> items can be nested. > > > > But i > > > > > > > >> > can't find yet the clear way to implement their storage > > > > > >> > programmatically. Some kind of tree, or reverse polish notation > > > > > > > > should > > > > > > > > > >> > be used here? nevermind > > > > > >> > > > > > > >> > _______________________________________________ > > > > > >> > xdg mailing list > > > > > >> > <a href="mailto:xdg@lists.freedesktop.org">xdg@lists.freedesktop.org</a> > > > > > >> > <a href="http://lists.freedesktop.org/mailman/listinfo/xdg" target="_blank">http://lists.freedesktop.org/mailman/listinfo/xdg</a> > > > > > > > > > > _______________________________________________ > > > > > xdg mailing list > > > > > <a href="mailto:xdg@lists.freedesktop.org">xdg@lists.freedesktop.org</a> > > > > > <a href="http://lists.freedesktop.org/mailman/listinfo/xdg" target="_blank">http://lists.freedesktop.org/mailman/listinfo/xdg</a> > > > > > > > > -- > > > > Kevin Krammer, KDE developer, xdg-utils developer > > > > KDE user support, developer mentoring > > > > > > > > _______________________________________________ > > > > xdg mailing list > > > > <a href="mailto:xdg@lists.freedesktop.org">xdg@lists.freedesktop.org</a> > > > > <a href="http://lists.freedesktop.org/mailman/listinfo/xdg" target="_blank">http://lists.freedesktop.org/mailman/listinfo/xdg</a> > > > > -- > > Kevin Krammer, KDE developer, xdg-utils developer > > KDE user support, developer mentoring > > > > _______________________________________________ > > xdg mailing list > > <a href="mailto:xdg@lists.freedesktop.org">xdg@lists.freedesktop.org</a> > > <a href="http://lists.freedesktop.org/mailman/listinfo/xdg" target="_blank">http://lists.freedesktop.org/mailman/listinfo/xdg</a> -- Kevin Krammer, KDE developer, xdg-utils developer KDE user support, developer mentoring </div></div> _______________________________________________ xdg mailing list <a href="mailto:xdg@lists.freedesktop.org">xdg@lists.freedesktop.org</a> <a href="http://lists.freedesktop.org/mailman/listinfo/xdg" target="_blank">http://lists.freedesktop.org/mailman/listinfo/xdg</a> </blockquote></div> </div>