RE: [ubl-dev] SV: [ubl] Re: [ubl-dev] Datatype Methodology RE: [ubl-dev] SBS and Restricted Data Types

["G. Ken Holman" <gkholman@CraneSoftwrights.com>]

At 2006-05-09 15:51 -0700, David RR Webber \(XML\) wrote:
>Thanks for the CRVL reference - I found -
>http://xml.coverpages.org/DSDL-Part7-200502.pdf and this looked
>comprehensive.

Yes, I believe that is the same document.

>Are there any XML usage samples out there too?

Not yet, it has not been completed.

>p.s. Sorry I forgot the XML prologue got deprecated - people still
>insist in putting <?xml version="1.0"?> everywhere though ; -)

Ah, is that what you meant?

Then for the archives I'll address my confusion from your earlier 
note.  We were talking about the repertoire of the XML document.

The SGML Prologue includes a large section in order to indicate, by 
enumeration, the allowed characters of the repertoire for an SGML document.

XML never had that repertoire part of the prologue as it was one of 
the things removed from the SGML features, but it does have in its 
prologue the XML Declaration:

   <?xml version="1.0"?>

to describe the syntax and character set of the document (in place of 
the SGML character prologue) and the DOCTYPE Declaration (the same as 
the SGML prologue):

   <!DOCTYPE x [ ... ]>

In fact the XML Declaration is not deprecated, the standard says an 
XML document "should" begin with an XML Declaration, so people 
should, indeed, be putting it everywhere and not leaving it out.

Sorry I misunderstood what it was you were referring to.

As I mentioned to Steve, the character set of the document (as 
declared in the XML Declaration) is orthogonal to the character 
repertoire of the document (which is the subject of the new DSDL CRVL).

Thankfully the XML processor in an XML-aware application handles 
character set issues and delivers Unicode characters to the XML-aware 
application regardless of the character set used to represent them.

. . . . . . . . . . . . Ken


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