RNV

This release fixes a bug in the grammar parser which might cause
an assertion failure during processing of "parent" patterns.

To facilitate the embedding of RNV into
heterogeneous environments, RVP was created. RVP
is a pipe that expects validation primitives on
one end and emits validation diagnostics from the
other. Embedding examples in Perl and Python are
provided. This provides fast and compliant Relax
NG validation solutions for these languages.
Several changes have been made to the core
modules, mostly to provide better separation of
layers.

Changes were made to rnv and arx in order to
support UTF-8.

This release has many performance and convenience enhancements. Pattern pools are now one-dimensional arrays, which conserves space and gives better performance. Pass-through mode has been added to facilitate use of rnv in pipes. ARX, a utility to automatically associate documents and grammars, is now included in the distribution. A simple plugin for Vim is provided, to use RNV with the editor. The script uses ARX to automatically choose the grammar for a document.

The XML Schema datatypes have been implemented, error reporting has been
reworked (it has hopefully become clear and consistent), performance has
improved, and bugs have been fixed.