BHL is an Emacs mode which enables you to convert plain text files into HTML, LaTeX, Texinfo, SGML (Linuxdoc), and TXT files. The BHL mode handles three levels of sections, many sectioning styles, common font-styles, any kind of lists, tables, URLs, horizontal rules, and Wiki names. BHL handles a list of links (lol) and a table of contents (toc): you can browse the lol and the toc, insert them where you want, and update the sections' numbers with one keystroke.
DSML is the Directory Services Markup Language, an XML dialect for working with directory information. The DSML Tools provide for the querying of any LDAP directory (with search results output as DSML), the importing of DSML data into any LDAP directory, the directory-context validation of DSML (checking for illegal attributes in the entries, etc.), and the calculation of the differences (for a directory) between two DSML documents to provide an XML Diff algorithm for DSML data. This software makes all LDAP-supporting directories DSML-enabled. It can also check the integrity of DSML data, and show at a glance how two data sets, represented as DSML, differ.
FleXML reads a DTD (Document Type Definition) describing the format of XML documents and produces a validating XML processor with an interface to support XML applications. Because the DTD is known in advance, the C code generated is much more efficient than equivalent code using an API such as SAX.
SPIN_py is a Python module that wraps the SP SGML parser. It does not follow SAX, nor DSSL, but it performs a similar task. It has code to build (and pretty-print) trees from C++ or from Python, and it has an interesting object model, with virtual C++ objects, based on PyObject_HEAD.
uni2ascii and ascii2uni provide conversion in both directions between UTF-8 Unicode and more than thirty 7-bit ASCII equivalents, including RFC 2396 URI format and RFC 2045 Quoted Printable format, the representations used in HTML, SGML, XML, OOXML, the Unicode standard, Rich Text Format, POSIX portable charmaps, POSIX locale specifications, and Apache log files. It can also convert between the escapes used for Unicode in languages such as Ada, C, Common Lisp, Java, Pascal, Perl, Postscript, Python, Scheme, and Tcl.