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https://issues.apache.org/jira/browse/XALANC-467?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13060646#comment-13060646
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Steven J. Hathaway commented on XALANC-467:
-------------------------------------------

The feature enhancement issue is old.  It is incompatible with the Xerces/Xalan 
Memory Manager.  New code integration is required.

The logic looks good but needs rework to incorporate the Xerces/Xalan Memory 
Manager.  It requires the Function class and its installer/uninstaller to be 
incorporated into the XPathEvaluator.

Custom extensions work well within the XSLT environment.  The proven logic 
needs porting to the XPathEvaluator.  I am using the CurrentSVN with Xerces-C 
3.1.1 having no problem with the XSLT environment.

> Possibility to install local extension functions in XPathEvaluator
> ------------------------------------------------------------------
>
>                 Key: XALANC-467
>                 URL: https://issues.apache.org/jira/browse/XALANC-467
>             Project: XalanC
>          Issue Type: Improvement
>          Components: XPathC
>         Environment: All
>            Reporter: Erik Rydgren
>            Priority: Minor
>         Attachments: Changes XPathEvaluator.cpp, Changes XPathEvaluator.h, 
> XPathEvaluator.cpp, XPathEvaluator.hpp
>
>
> There is no way to use local extension function when evaluating XPath through 
> XPathEvaluator.
> David N Bertoni wrote:
> It sounds like we need to add a public member function to XPathEvaluator to 
> install local extension functions.  Can you create a Jira enhancement 
> request, so we don't loose track if it?
> Thanks!
> Dave

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