Trash spec: wrapping up
alexl at redhat.com
Mon Nov 8 09:29:07 EET 2004
On Sat, 2004-11-06 at 00:20 +0100, David Faure wrote:
> On Tuesday 02 November 2004 10:48, you wrote:
> > On Tue, 2004-11-02 at 10:04 +0300, Mikhail Ramendik wrote:
> > > Alexander Larsson wrote:
> > >
> > > > Thus, i propose that we store the byte string in escaped form in the
> > > > trash info file. The normal desktop file escaping method doesn't allow
> > > > encoding of any byte value, so we can't use that. To avoid multiple
> > > > escape/unescape problems when using existing desktop parsers we
> > > > shouldn't extend that method. Instead i propose that we use url-style
> > > > escaping.
> > >
> > > What's the name of the standard that describes URL-style escaping and is
> > > supported in Gnome and KDE? We need to redference that in the text.
> > Its described in RFC 2396, section 2.4.1. We still have to decide
> > exactly what characters to escape though. I think a good set of
> > characters to not escape is the "unreserved characters" class in the
> > RFC, plus "/".
> > That would mean everything is escaped except:
> > 'a' - 'z', 'A'- 'Z', '0' - '9',
> > '-', '_', '.' '!', '~', '*', ''', '(', ')'
> > '/'
> The shared code for this in KDE (i.e. KURL) refers to
> RFC 1738, 2.2. URL Character Encoding Issues (pp. 3-4)
> and encodes everything <=32, >=127, or among
> This conflicts on ~ and ' ... but does it matter? If one implementation
> encodes '~' and the other doesn't, this is no problem, they can both
> read each other anyway.
> Given the Key=Value / Key[fr]=Value format, I think the most important is to
> make sure that '=', '[', ']', control characters (<32) and non-ascii (>=127)
> are escaped, the rest doesn't matter.
> If an implementation wants to escape 'a'..'z' it will look ugly, but it will still
> be interoperable :)
Sure, the main need is to define the minimal set that has to be escaped.
Your set looks fine to me.
Alexander Larsson Red Hat, Inc
alexl at redhat.com alla at lysator.liu.se
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