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Posted to j-dev@xerces.apache.org by Sanjaya Liyanage <sa...@gmail.com> on 2010/10/19 18:39:18 UTC
Expanding the XPath support for XPOinter xpointer() scheme
Hi all,
After I completed the GSoc project "*Implementing a streamable subset
for XPointer xpointer() scheme for XInclude*" now I'm trying to expand the
XPath support for XPointer xpointer() scheme as currently it supports for
very limited subset of XPath.I will begin from adding the predicates
support.let me know any suggestions.
Thank you.
Sanjaya Liyanage.
Re: Expanding the XPath support for XPOinter xpointer() scheme
Posted by Sanjaya Liyanage <sa...@gmail.com>.
Hi Michael,
Thank you very much for giving me the idea.I'll go through my
XPathSupport class which extends the Xpath class and will do the necessary
changes there.
Thank you.
Sanjaya Liyanage
On Mon, Oct 25, 2010 at 9:51 PM, Michael Glavassevich
<mr...@ca.ibm.com>wrote:
> Hi Sanjaya,
>
> The base XPath support is limited to the subset of XPath required for XML
> Schema identity constraints. This does not include predicates.
>
> You may recall our design discussions (see [1]) from earlier in the year.
> You would need to extend the XPath parser to allow predicates and would also
> need to extend the XPath matcher to handle them.
>
> Thanks.
>
> http://markmail.org/message/kruaew5uwjacmrg5
>
>
> Michael Glavassevich
> XML Parser Development
> IBM Toronto Lab
> E-mail: mrglavas@ca.ibm.com
> E-mail: mrglavas@apache.org
>
> Sanjaya Liyanage <sa...@gmail.com> wrote on 10/25/2010 07:55:46 AM:
>
>
> > Hi Michael,
> > I did the basic modifications to the code base(in the
> > parseXPointer(),scanExpr() and the checkChildFragmentResolved() )
> > for supporting the xpointers with predicates.But it gives errors
> > while creating XPath Support Object.Do I have to change the XPath
> > class in order to allow the predicates to be existed in xpointer
> expressions?
> >
> > Thank you.
> > Sanjaya Liyanage.
> >
>
> > On Tue, Oct 19, 2010 at 1:16 PM, Michael Glavassevich <
> mrglavas@ca.ibm.com
> > > wrote:
> > Hi Sanjaya,
> >
> > Welcome back and thanks for your continued interest in contributing to
> Xerces.
> >
> > If you have specific questions feel free to ask here.
> >
> > Thanks.
> >
> > Michael Glavassevich
> > XML Parser Development
> > IBM Toronto Lab
> > E-mail: mrglavas@ca.ibm.com
> > E-mail: mrglavas@apache.org
> >
> > Sanjaya Liyanage <sa...@gmail.com> wrote on 10/19/2010 12:39:18 PM:
> >
> >
> > > Hi all,
> > > After I completed the GSoc project "Implementing a streamable
> > > subset for XPointer xpointer() scheme for XInclude" now I'm trying
> > > to expand the XPath support for XPointer xpointer() scheme as
> > > currently it supports for very limited subset of XPath.I will begin
> > > from adding the predicates support.let me know any suggestions.
> > >
> > > Thank you.
> > > Sanjaya Liyanage.
>
Re: Expanding the XPath support for XPOinter xpointer() scheme
Posted by Michael Glavassevich <mr...@ca.ibm.com>.
Hi Sanjaya,
The base XPath support is limited to the subset of XPath required for XML
Schema identity constraints. This does not include predicates.
You may recall our design discussions (see [1]) from earlier in the year.
You would need to extend the XPath parser to allow predicates and would
also need to extend the XPath matcher to handle them.
Thanks.
http://markmail.org/message/kruaew5uwjacmrg5
Michael Glavassevich
XML Parser Development
IBM Toronto Lab
E-mail: mrglavas@ca.ibm.com
E-mail: mrglavas@apache.org
Sanjaya Liyanage <sa...@gmail.com> wrote on 10/25/2010 07:55:46 AM:
> Hi Michael,
> I did the basic modifications to the code base(in the
> parseXPointer(),scanExpr() and the checkChildFragmentResolved() )
> for supporting the xpointers with predicates.But it gives errors
> while creating XPath Support Object.Do I have to change the XPath
> class in order to allow the predicates to be existed in xpointer
expressions?
>
> Thank you.
> Sanjaya Liyanage.
>
> On Tue, Oct 19, 2010 at 1:16 PM, Michael Glavassevich
<mrglavas@ca.ibm.com
> > wrote:>
> Hi Sanjaya,
>
> Welcome back and thanks for your continued interest in contributing to
Xerces.
>
> If you have specific questions feel free to ask here.
>
> Thanks.
>
> Michael Glavassevich
> XML Parser Development
> IBM Toronto Lab
> E-mail: mrglavas@ca.ibm.com
> E-mail: mrglavas@apache.org
>
> Sanjaya Liyanage <sa...@gmail.com> wrote on 10/19/2010 12:39:18 PM:
>
>
> > Hi all,
> > After I completed the GSoc project "Implementing a streamable
> > subset for XPointer xpointer() scheme for XInclude" now I'm trying
> > to expand the XPath support for XPointer xpointer() scheme as
> > currently it supports for very limited subset of XPath.I will begin
> > from adding the predicates support.let me know any suggestions.
> >
> > Thank you.
> > Sanjaya Liyanage.
Re: Expanding the XPath support for XPOinter xpointer() scheme
Posted by Sanjaya Liyanage <sa...@gmail.com>.
Hi Michael,
I did the basic modifications to the code base(in the
parseXPointer(),scanExpr() and the checkChildFragmentResolved() ) for
supporting the xpointers with predicates.But it gives errors while creating
XPath Support Object.Do I have to change the XPath class in order to allow
the predicates to be existed in xpointer expressions?
Thank you.
Sanjaya Liyanage.
On Tue, Oct 19, 2010 at 1:16 PM, Michael Glavassevich
<mr...@ca.ibm.com>wrote:
> Hi Sanjaya,
>
> Welcome back and thanks for your continued interest in contributing to
> Xerces.
>
> If you have specific questions feel free to ask here.
>
> Thanks.
>
> Michael Glavassevich
> XML Parser Development
> IBM Toronto Lab
> E-mail: mrglavas@ca.ibm.com
> E-mail: mrglavas@apache.org
>
> Sanjaya Liyanage <sa...@gmail.com> wrote on 10/19/2010 12:39:18 PM:
>
>
> > Hi all,
> > After I completed the GSoc project "Implementing a streamable
> > subset for XPointer xpointer() scheme for XInclude" now I'm trying
> > to expand the XPath support for XPointer xpointer() scheme as
> > currently it supports for very limited subset of XPath.I will begin
> > from adding the predicates support.let me know any suggestions.
> >
> > Thank you.
> > Sanjaya Liyanage.
>
>
Re: Expanding the XPath support for XPOinter xpointer() scheme
Posted by Michael Glavassevich <mr...@ca.ibm.com>.
Hi Sanjaya,
Welcome back and thanks for your continued interest in contributing to
Xerces.
If you have specific questions feel free to ask here.
Thanks.
Michael Glavassevich
XML Parser Development
IBM Toronto Lab
E-mail: mrglavas@ca.ibm.com
E-mail: mrglavas@apache.org
Sanjaya Liyanage <sa...@gmail.com> wrote on 10/19/2010 12:39:18 PM:
> Hi all,
> After I completed the GSoc project "Implementing a streamable
> subset for XPointer xpointer() scheme for XInclude" now I'm trying
> to expand the XPath support for XPointer xpointer() scheme as
> currently it supports for very limited subset of XPath.I will begin
> from adding the predicates support.let me know any suggestions.
>
> Thank you.
> Sanjaya Liyanage.