Status of std.xml (D2/Phobos)

[Ellery Newcomer]

On 06/27/2010 10:16 AM, Justin Johansson wrote:
>
> OTOH, there are some really significant W3C specs that you may
> or may not be aware of and these are really difficult to implement
> in regular imperative languages like C/C++ and Java. Java,
> being all that is the following of Java I guess, has had the most
> success in implementing these specs.
>
> IMHO, the two most fundamental and significant W3C specs that
> D libraries could well address are as follows. These form a
> large amount of the (formal) XML ecosystem.
>
> XML Schema Part 2: Datatypes Second Edition
> http://www.w3.org/TR/2004/REC-xmlschema-2-20041028/
>
> and
>
> XQuery 1.0 and XPath 2.0 Data Model (XDM)
> http://www.w3.org/TR/2007/REC-xpath-datamodel-20070123/
>
> I can tell you for sure that XPath 2.0, which is the basis
> for XSLT 2.0 and XQuery 1.0, is truly a challenge to implement
> in languages like C++ and Java. Others have succeeded with
> implementations in languages like Eiffel. I would hope though,
> that D2 would be up to the task (is that is wishful thinking?).
>
> Cheers
> Justin Johansson

For the sake of us uninformed spectators, could you give a little taste 
of the challenges to which you refer?