Balisage Paper: Achieving Near-Native Performance in XSLT, XQuery, and XPath Using Host-Language User Extension Functions

Balisage: The Markup Conference 2026
August 3 - 7, 2026

The materials listed below were provided by the speaker as supplements to a presentation at Balisage. These materials may include the slides or visuals used in the presentation; supplementary material, such as code samples or a demonstration application; and/or the paper accompanying the presentation (if it has not been provided in XML). These materials have been zipped for easy download and are identified by a brief description of the contents. The materials themselves are untouched, that is, they have not been tested or edited by Balisage: The Markup Conference or by Mulberry Technologies, Inc. As such, they are included on this website AS IS, i.e., as provided by the speaker, with no warranties, express or otherwise, made by Balisage or Mulberry.

Slides and Materials

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Kay, Michael. XSL Transformations (XSLT) Version 3.0, 8 June 2017. W3C Recommendation. http://www.w3.org/TR/xslt30

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Robie, Jonathan, Dyck, Michael, and Spiegel, Josh. XQuery 3.1: An XML Query Language, 21 March 2017. W3C Recommendation. https://www.w3.org/TR/xquery-31

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Delpratt, O'Neil and Lockett, Debbie. Implementing XForms using interactive XSLT 3.0. Presented at XML Prague 2018. In Proceedings of XML Prague 2018: http://archive.xmlprague.cz/2018/files/xmlprague-2018-proceedings.pdf

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SaxonJ and SaxonC Products. Saxonica. https://www.saxonica.com/

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SaxonC - C++ and Python Extension functions. Saxonica. https://www.saxonica.com/saxon-c/documentation13/index.html#!extensibility

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BaseX Java Bindings. BaseX. https://docs.basex.org/main/Java_Bindings

Author's keywords for this paper:
XSLT; XQuery; XPath; Java; C++; Python; PHP; API; GRAALVM