Content string encoding?
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Content string encoding?
by Murray Cumming
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We are wrapping the g_content_type_* functions for giomm, and have a
question: Can/must the content strings here be UTF-8, or are they a blob of data of unknown encoding (a bit like a URI) http://library.gnome.org/devel/gio/unstable/gio-GContentType.html -- murrayc@... www.murrayc.com www.openismus.com _______________________________________________ gnome-vfs-list mailing list gnome-vfs-list@... http://mail.gnome.org/mailman/listinfo/gnome-vfs-list |
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Re: Content string encoding?
by Alexander Larsson
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On Fri, 2008-02-01 at 01:01 +0100, Murray Cumming wrote: > We are wrapping the g_content_type_* functions for giomm, and have a > question: > > Can/must the content strings here be UTF-8, or are they a blob of data > of unknown encoding (a bit like a URI) > http://library.gnome.org/devel/gio/unstable/gio-GContentType.html I'm not sure. I mean, on unix they are mimetypes, and on windows they are extension strings like ".doc", "audio", "*". Both of these will in practice be ASCII strings in all cases, but I don't think there is anything prohibiting e.g. adding a non-ascii type in the windows registry which then could be returned to the app via gio. For unix the source of mime-types is the freedesktop shared mime spec, and its files are defined in utf8, so all unix mimetypes should be utf8. Maybe we can say that the content type must be utf8, and then we filter out those who are not (in practice none). Also, URIs are not undefined, they are a limited subset of ASCII. If any non-ascii character is unescaped in the URI it is invalid (by the spec). _______________________________________________ gnome-vfs-list mailing list gnome-vfs-list@... http://mail.gnome.org/mailman/listinfo/gnome-vfs-list |
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Re: Content string encoding?
by Murray Cumming
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On Fri, 2008-02-01 at 09:54 +0100, Alexander Larsson wrote: > On Fri, 2008-02-01 at 01:01 +0100, Murray Cumming wrote: > > We are wrapping the g_content_type_* functions for giomm, and have a > > question: > > > > Can/must the content strings here be UTF-8, or are they a blob of data > > of unknown encoding (a bit like a URI) > > http://library.gnome.org/devel/gio/unstable/gio-GContentType.html > > I'm not sure. I mean, on unix they are mimetypes, and on windows they > are extension strings like ".doc", "audio", "*". Both of these will in > practice be ASCII strings in all cases, but I don't think there is > anything prohibiting e.g. adding a non-ascii type in the windows > registry which then could be returned to the app via gio. Could that mean that they are ever some odd encoding such as UCS2, which would not be UTF-8? > For unix the source of mime-types is the freedesktop shared mime spec, > and its files are defined in utf8, so all unix mimetypes should be utf8. > Maybe we can say that the content type must be utf8, and then we filter > out those who are not (in practice none). > > Also, URIs are not undefined, they are a limited subset of ASCII. If any > non-ascii character is unescaped in the URI it is invalid (by the spec). -- murrayc@... www.murrayc.com www.openismus.com _______________________________________________ gnome-vfs-list mailing list gnome-vfs-list@... http://mail.gnome.org/mailman/listinfo/gnome-vfs-list |
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Re: Content string encoding?
by Alexander Larsson
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On Fri, 2008-02-01 at 17:36 +0100, Murray Cumming wrote: > On Fri, 2008-02-01 at 09:54 +0100, Alexander Larsson wrote: > > On Fri, 2008-02-01 at 01:01 +0100, Murray Cumming wrote: > > > We are wrapping the g_content_type_* functions for giomm, and have a > > > question: > > > > > > Can/must the content strings here be UTF-8, or are they a blob of data > > > of unknown encoding (a bit like a URI) > > > http://library.gnome.org/devel/gio/unstable/gio-GContentType.html > > > > I'm not sure. I mean, on unix they are mimetypes, and on windows they > > are extension strings like ".doc", "audio", "*". Both of these will in > > practice be ASCII strings in all cases, but I don't think there is > > anything prohibiting e.g. adding a non-ascii type in the windows > > registry which then could be returned to the app via gio. > > Could that mean that they are ever some odd encoding such as UCS2, which > would not be UTF-8? Actually, looking at the win32 the registry is stored in unicode and we always convert to UTF-8 in libgio. _______________________________________________ gnome-vfs-list mailing list gnome-vfs-list@... http://mail.gnome.org/mailman/listinfo/gnome-vfs-list |
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