sgml2xml-isoent — Convert SGML to XML with support for ISO entities
sgml2xml-isoent converts an SGML document to XML, with support for the ISO entities. This is done by using sgml2xml from the SP package (or osx from the OpenSP package), and the declaration for the XML version of the ISO entities is added to the output. This means that the output of this conversion should work as-is with any XML tool.
This program is often used for processing SGML DocBook documents
with XML-based tools. In particular, db2x_xsltproc calls this program as
part of its
--sgml option. On the other
hand, it is probably not helpful for migrating a source SGML text
file to XML, since the conversion mangles the original
Since the XML version of the ISO entities are referred to directly, not via a DTD, this tool also works with document types other than DocBook.
The ISO entities are referred using the public identifiers
ISO 8879:1986//ENTITIES//. The
catalogs used when parsing the converted document should resolve
these entities to the appropriate place (on the local filesystem).
If the entities are not resolved in the catalog, then the fallback
is to get the entity files from the
http://www.docbook.org/ Web site.