libghc-hxt-dev 9.3.1.18-1build1 (riscv64 binary) in ubuntu focal

 The Haskell XML Toolbox bases on the ideas of HaXml and HXML, but introduces a
 more general approach for processing XML with Haskell. The Haskell XML
 Toolbox uses a generic data model for representing XML documents, including
 the DTD subset and the document subset, in Haskell. It contains a validating
 XML parser, a HTML parser, namespace support, an XPath expression evaluator,
 an XSLT library, a RelaxNG schema validator and funtions for serialization and
 deserialization of user defined data. The library makes extensive use of the
 arrow approach for processing XML.
 .
 Since version 9 the toolbox is partitioned into various (sub-)packages. This
 package contains the core functionality, hxt-curl, hxt-tagsoup, hxt-relaxng,
 hxt-xpath, hxt-xslt, hxt-regex-xmlschema contain the extensions. hxt-unicode
 contains encoding and decoding functions, hxt-charproperties char properties
 for unicode and XML.
 .
 This package provides a library for the Haskell programming language.
 See http://www.haskell.org/ for more information on Haskell.