On Oct 11, 2007, at 5:49 PM, dhess@fishsoftware.com wrote:
>> I currently have "xml" as the name of the xml_quote_no_more class,
>> so that [xml] and [str] are intended to hint that we are accumulating
>> xml or str values.
>
> The talk of xml has me wondering about a new feature. I would find
> useful
> a feature of qpy where it would optionally take the result of an [xml]
> tagged method/function and run it through an XML parser to check syntax
> and maybe even semantics against a specified DTD/schema (XHTML). If
> this
> were enabled and parsing/validation fails, then an Exception would be
> thrown on return from the method/function.

Probably Qpy would not want to "grow" into being more domain-specific.
It would be interesting though to be able to specialize usage easily,
e.g. like
you suggest with decorators, but such extensions should be totally
separate
from core qpy (distinct module).

Considerations:
Validation against a schema may only be done on a full document?
Only well-formedness could be checked on each template?
Such checks should be toggle-able, i.e. turned off in deployment. Can
that easily be done using decorators?

> My motivation for this is that it can be difficult to get an online
> validator to validate offline and secure websites. This could also be
> useful when using qp to implement REST web services.

Ah, but it may be easier in that case to just not use XML... ;-)

> I suppose I could implement this with a decorator of my own but it
> seems
> an interesting feature during development.
>
> Dave