Yes, you can do this. Declare the xalan namespace on the root node of
your document, like this:
xmlns:xalan="http://xml.apache.org/xalan";
Gary
shruti wrote:
>
> Can i use this tokenize function in an XPath query ......
> if yes, where do i register the xalan namespace in the evaluation
> context....i am evaluating the xpath expression using
>
> XPathAPI.eval(doc,xpath);
> If i give the following xpath expression //book[.=xalan:tokenize(hello ho)],
> it gives an error -
>
> Prefix must resolve to a namespace : xalan
>
> ----- Original Message -----
> From: Gary L Peskin <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Wednesday, July 04, 2001 11:23 PM
> Subject: Re: Addition of a new function
>
> > Shruti --
> >
> > I think you'd be better off by implementing an XSLT extension function
> > rather than changing the core of XalanJ.
> >
> > Have a look at http://xml.apache.org/xalan-j/extensions.html and at the
> > XSLT Recommendation itself.
> >
> > You'd also find some good examples in org.apache.xalan.lib.Extensions.
> > It seems like you might be able to use the tokenize extension
> > (http://xml.apache.org/xalan-j/extensionslib.html#tokenize), already
> > supplied by XalanJ, to accomplish what you want:
> >
> > file://book[. = xalan:tokenize("hello ho")]
> >
> > or something like that.
> >
> > Gary
> >
> > > shruti wrote:
> > >
> > > Hello,
> > >
> > > i have to add a new function to the xalan's xpath list of functions. i
> > > am adding a function for searching a list of words .
> > > It would be an extension to the xalan's contains function ...
> > >
> > > file://book[contains(./,"hello")]
> > > file://book[contains-words(./,"hello hi","any")] - this would search for
> > > words hello and hi and returns all the nodes which have either hello
> > > or hi in their text.
> > >
> > > For this i had to add a class (FunctionContainsWords.java) in the
> > > org/apache/xpath/functions package and make an appropriate entry for
> > > this function in the function table and keywords class
> > >
> > > Could their be any alternative approach possible by which i could add
> > > this function by not changing the existing code . But by just deriving
> > > my own classes from the existing ones..
> > >
> > > Please suggest...
> > >
> > > thanx
> > > Shruti.
> > >
> > >
