Perhaps small standalone processors give added flexibility for asynchronous or
multi- threaded solutions also?
Sent from my iPad
On 24 Oct 2012, at 20:22, Dimitre Novatchev <dnovatchev(_at_)gmail(_dot_)com>
wrote:
We don't often hear from people using XPath but not (XSLT|XQuery), even
though it is obviously a frequent thing to do.
Liam
Actually, the existence of XPath processors can greatly benefit the
development of both XSLT and XQuery processors.
It is easy to imagine XPath processors implementing a standard
interface so that any of them can be simply plugged in into any XSLT
or XQuery processor that is being developed -- not unlike the way an
XML parser is plugged in and in many cases substitutable by another
XML parser.
For example:
"If you don't supply a parser, Saxon will select one using the JAXP
mechanisms, specifically, the system property
javax.xml.parsers.DocumentBuilderFactory"
from the Saxon documentation:
http://saxon.sourceforge.net/saxon7.0/api-guide.html
Having such ready XPath components is going to make the development of
an XSLT/XQuery processor much faster and easier.
Cheers,
Dimitre.
On Wed, Oct 24, 2012 at 11:55 AM, Liam R E Quin <liam(_at_)w3(_dot_)org>
wrote:
On Wed, 2012-10-24 at 08:31 -0700, Dimitre Novatchev wrote:
As Liam noted, another good to have feature in XPath would be
namespace definition support and probably ways for defining the
initial context.
I tried to get the XQuery and XSLT WGs interested in the idea of some
sort of 'bind expression', e.g.
use prefix h = "some uri", i = "some uri" in h:/hello/i:invisible
but they went instead down the road of EQNames, which are easier for
machine generation of paths but harder for humans writing paths.
We don't often hear from people using XPath but not (XSLT|XQuery), even
though it is obviously a frequent thing to do.
Liam
--
Liam Quin - XML Activity Lead, W3C, http://www.w3.org/People/Quin/
Pictures from old books: http://fromoldbooks.org/
Ankh: irc.sorcery.net irc.gnome.org freenode/#xml
Co-author, 5th edition of "Beginning XML", Wrox, Summer 2012
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Cheers,
Dimitre Novatchev
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