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Title as attribute or element?

From: ~:'' ありがとうございました。 <j.chetwynd@btinternet.com>
Date: Sun, 6 Jan 2008 09:20:24 +0000
Message-Id: <2968CD15-C63E-4546-A117-E57B33C4DD10@btinternet.com>
Cc: www-svg List <www-svg@w3.org>
To: ~:'' ありがとうございました。 <j.chetwynd@btinternet.com>

Title as attribute or element?

this is an attempt to describe my concerns with the current use and  
specification for <title>

in the SVG 1.1 test suite:
http://www.w3.org/Graphics/SVG/Test/20061213/htmlObjectHarness/full- 
index.html
the titles provided, rather than using a precis of the description  
which would be informative merely repeat the file name, which in most  
cases is not informative to the naive.
eg:
http://www.w3.org/Graphics/SVG/Test/20061213/htmlObjectHarness/full- 
text-fonts-01-t.html
"test for font family" rather than "text-fonts-01-t"
http://www.w3.org/Graphics/SVG/Test/20061213/htmlObjectHarness/full- 
text-fonts-02-t.html
"test for  font weight" rather than "text-fonts-02-t"

the use of <title> in the wild may be rare, for instance:
http://commons.wikimedia.org/wiki/Category:Weather_symbols
http://www.croczilla.com/svg/samples/

and iirc the recent W3 SW SVG logos were initially published without  
a title

furthermore, the use of title to describe the whole document isn't  
unambiguous.
according to the spec anything not in a group is considered a  
separate group.
so unless, or perhaps even if, a title is the first child of an SVG  
it isn't clear which title is the document title. ie the title refers  
to the group, not the document, was it Gödel who first mentioned  
this? it's an issue that has arisen before when considering W3 specs.
using a similar argument, within a group, it may not be unambiguous  
what a given title may refer to.
it seems to me that because of this inherent lack of clarity title  
may be better expressed as an attribute than an element. The  
parentage being direct.

which leads to my previous mail:
I had hoped that treating title as an attribute of the SVG element  
might resolve this.
however I misunderstood the spec, the language seems obscure or  
poorly phrased:
http://www.w3.org/TR/SVG11/struct.html#XLinkTitleAttribute
 >> xlink:title = '<string>'
The title attribute is used to describe the meaning of a link or  
resource in a human-readable fashion, along the same lines as the  
role or arcrole attribute.

What does "the meaning of a link" refer to?
how can a link have a meaning? surely only the reference has a meaning?

could the meaning be better expressed by replacing 'link or' with  
'linked' as in:
"The title attribute is used to describe the meaning of a linked  
resource in a human... " ??

regards

Jonathan Chetwynd
Accessibility Consultant on Media Literacy and the Internet



On 5 Jan 2008, at 17:42, ~:'' ありがとうございました。  
wrote:


xlink:title as attribute of SVG element

is it valid to include xlink:title as attribute of SVG element**

current SVG user agents appear to use the first title in code as the  
default text for bookmarking.

regards

Jonathan Chetwynd
Accessibility Consultant on Media Literacy and the Internet

http://www.w3.org/TR/SVG11/struct.html#XLinkTitleAttribute

**<svg xmlns="http://www.w3.org/2000/svg" version="1.2"  
baseProfile="tiny"
      xmlns:xlink="http://www.w3.org/1999/xlink"
width="100%" height="100%"
xlink:title="My Peepo Bookmark"
 >
Received on Sunday, 6 January 2008 09:20:43 GMT

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