Hi Scott,
Thanks for responding to my questions. Just a few follow ups of my previous
questions.
[EMAIL PROTECTED] wrote:
> > I'm just new to Xalan. I'd like to ask a few questions about XPath
> > 1. Does the current implementation of XPath module have the validation
> > test ie test to see the XPath expression is a valid expression or not?
>
> It throws an exception if the expression is not valid.
>
When the XPath expression is checked for validity, it simply checks the syntax
without including or
having knowledge of the document ie without extracting info from the document?
>
> > 2. If the XPath expression addresses the node that is not included in
> > the XML input, what will it return?
>
> Null or an empty nodelist or a iterator that will return null for nextNode,
> depending on which method you call.
>
> > 3. Is it possible for me to access any location step in an XPath
> > expression?
>
> You mean, in the expression itself? It is possible, but not a great idea,
> since the op-map currently built by Xalan will be replaced pretty soon by
> an AST tree.
>
> Or in the execution tree? What is it that you want to do?
>
> -scott
>
When will the op-map be replaced by an AST tree? How soon will it be? Can i
have an early access to some
kind of beta design, interfaces, implementation? I really want to use XPath
module as part of our
project so i'd like to know whether there will be any change of this module at
all in the future beside
the op-map part? What will be the future direction of this module?
Thanks in advance.
Son
------------------------------------------------------------------------
Teamwork is essential.
It lets you blame someone else.
-- Anonymous
