James Clark's SGML parsing tools

 This package is a collection of SGML/XML tools called SP.
 .
 These tools are used to parse, validate, and normalize SGML and XML
 files. The central programs included in this package are 'nsgmls',
 which replaces sgmls, 'spam', 'spent', 'sgmlnorm', and 'sgml2xml'.
 .
  Author: James Clark <jjc@jclark.com>
  Homepage: http://www.jclark.com/sp/