Error correction

["Didier PH Martin" <martind@xxxxxxxxxxxxx>]

Hi Chris,

I made an error the style specs says that the href property is a URI and
therefore can be a URN (RFC 2141) thus a style sheet can be location
independant if a URN is used instead of a URL.

Also:

Maybe I should use the media property which is already extensible. here a
spec extract:

6.13 Media descriptors
The following is a list of recognized media descriptors ( %MediaDesc in the
DTD).

screen
Intended for non-paged computer screens.
tty
Intended for media using a fixed-pitch character grid, such as teletypes,
terminals, or portable devices with limited display capabilities.
tv
Intended for television-type devices (low resolution, color, limited
scrollability).
projection
Intended for projectors.
handheld
Intended for handheld devices (small screen, monochrome, bitmapped graphics,
limited bandwidth).
print
Intended for paged, opaque material and for documents viewed on screen in
print preview mode.
braille
Intended for braille tactile feedback devices.
aural
Intended for speech synthesizers.
all
Suitable for all devices.
Future versions of HTML may introduce new values and may allow parameterized
values. To facilitate the introduction of these extensions, conforming user
agents must be able to parse the media attribute value as follows:

The value is a comma-separated list of entries. For example,
media="screen, 3d-glasses, print and resolution > 90dpi"

is mapped to:

"screen"
"3d-glasses"
"print and resolution > 90dpi

Each entry is truncated just before the first character that isn't a US
ASCII letter [a-zA-Z] (Unicode decimal 65-90, 97-122), digit [0-9] (Unicode
hex 30-39), or hyphen (45). In the example, this gives:
"screen"
"3d-glasses"
"print"

A case-sensitive match is then made with the set of media types defined
above. User agents may ignore entries that don't match. In the example we
are left with screen and print
-------------------------

So maybe I should use media="screen, rtf" or media="screen, CGM" this way I
would be compliant with the specs :-) Is it OK now?

So I would get instead:

<?xml-stylesheet href="urn:tns:myscript" type="text/xsl" media="screen, CGM"
?>

the URN gives me location independence and the media give mr freedom of
choice for my rendering. If the browser cannot assure me Qality of rendering
it could degrade to what it is capable of. At least my style specification
would indicate my level of rendering service quality.

I guess now we have common ground :-)

thanx for the challenge, I get a better processing instruction. By the way I
like the media property example it illustrates very well what quality of
service for rendering means. It means that if the client's browser has
3d-glasses it will be rendered better. Same thing for my CGM renderer, as a
producer I know that my work will be better rendered with a CGM compliant
device (again, this is an example)

Cheers
Didier PH Martin
mailto:martind@xxxxxxxxxxxxx
http://www.netfolder.com


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