- From: Bjoern Hoehrmann <derhoermi@gmx.net>
- Date: Thu, 09 Jun 2005 16:12:45 +0200
- To: "Mark Birbeck" <mark.birbeck@x-port.net>
- Cc: <www-svg@w3.org>
* Mark Birbeck wrote: >> >I interpret the specs (SVG 1.2/IRI/URI) to say as follows: >> >1) xlink:href="" resolves to a reference to the document >> >itself (if no other xml:base attribute is explicitly given >> >in the ancestors to the referencing element). > >You say that this view "is not really correct either": Yes, >> Consider an example like >> >> <!-- document at http://example.org/svg/svg --> >> <g xml:base="http://example.org/base"> >> <image xlink:href="" ... /> >> </g> If "resolve" refers to resolving the IRI Reference to an IRI it's not correct because the document is at http://example.org/svg/svg and the reference resolves to http://example.org/base and these are different. If "resolve" refers to dereferencing the reference for retrieval, the note about xml:base is not correct as the lexical form of the reference and the "base IRI" do not affect whether a reference is a same-document reference. >By the way, whilst everyone is going through this clarification >process, you might also want to say how you view: > > xlink:href="#" > >This is usually also seen as a reference to the current document. Well, you simply parse the reference into its components as defined in RFC 3986 R.scheme = undefined R.authority = undefined R.path = "" R.query = undefined R.fragment = "" and apply the relevant algorithm which would execute the instructions T.path = Base.path; T.query = Base.query; T.authority = Base.authority; T.scheme = Base.scheme; T.fragment = R.fragment; The reference would be a same-document reference if Base and T are equivalent for all attributes but "fragment"; this is obviously true so this is a same-document reference. If you recompose the reference you get (Base is "http://example.org/foo") http://example.org/foo# or something equivalent to it like HTTP://example.org/foo# http://example.org:80/foo# ... -- Björn Höhrmann · mailto:bjoern@hoehrmann.de · http://bjoern.hoehrmann.de Weinh. Str. 22 · Telefon: +49(0)621/4309674 · http://www.bjoernsworld.de 68309 Mannheim · PGP Pub. KeyID: 0xA4357E78 · http://www.websitedev.de/
Received on Thursday, 9 June 2005 14:11:57 UTC