Log Message:
Import hxt-9.3.1.18 from wip

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.