Re: [cgmo-webcgm] XCF fragment -- P.S.

[Lofton Henderson <lofton@rockynet.com>]

My comment about current draft 2.0 text being "incorrect" needs
refinement.  The old subsection 3.1.1.4 does talk about how to
encode URIs with or without fragments, if characters exceed the ASCII+
URI set.  It's talking about encoding the URL+fragment as defined in
3.1.1.2.

So we just needs to tie in the xcfurl to those rules.  And talk
about resolving local URLs.

-Lofton.


At 11:08 AM 6/3/2005 -0600, Lofton Henderson wrote:

I also agree (w/ you and Benoit) that #2 makes the most sense.

Assuming that no one objects and instead wants option #1, the text should fixed in 3.1.1.2, right?  Here is the current text:

xcfurl ::= (char)+

See next section for a definition of the "char" production.

This is actually incorrect, regardless of the present issue, unless we add a 5th bullet to #3 in 3.1.1.3 with some restrictions on (char)+.  Such a 5th bullet would say something like:  "In the case of 'xcfurl', the character repertoire (and string construction) shall follow the same rules as the first parameter (the URL) of the 'linkuri' APS Attribute, 3.2.2.3."  [Ignoring for the moment that we still have an open issue about changing URI to IRI.]

Then, to implement the resolution of the current issue, we would add the rule that relative URLs for 'xcfurl' are resolved relative to the URL of the CGM (i.e., relative to the URL in which the xcfterm fragment is contained.)

Regards,
-Lofton.

At 02:49 PM 6/1/2005 +0200, =?us-ascii?Q?Dieter__Weidenbruck?= wrote:

All,

I have a question regarding the usage of XCF fragments.
Consider the following URL:


http://www.cgmopen.org/mycgm.cgm#xcf(myxcf.xml)

This link resides on an HTML page located at

http://www.itedo.com/mytest.html


So the cgm URL is not relative to the html, however, the xml URL
is a relative one.

Question:
where is the XML file?

1. http://www.itedo.com/myxcf.xml (relative to html file)
2. http://www.cgmopen.org/myxcf.xml (relative to cgm file)

Suggestion: 2.

Reason:
a relative URL inside the CGM in a linkURI would be considered relative to
the CGM file as well.
no strong preference, but it needs to be resolved.

Regards,
Dieter