[Metakit] Ratcl 0.92

[Jean-Claude Wippler]

I'm pleased to announce the 0.92 release of Ratcl.

(This is a Tcl-specific announcement - if you're interested in other  
languages, you may still want to read on, as more bindings will  
follow later.)

Ratcl is a completely new development which implements Relational  
Algebra in Tcl.  Take that with a grain of salt though: the Ratcl  
design also deals with set- and vector operators, and bridges the gap  
with databases and persistence by adopting a Metakit-compatible file  
format.  Ratcl aims to provide new persistence solutions for  
scripting languages.

Being a bit of everything, there is a lot still left to explore, as I  
try to find a balance which will make it easy to efficiently deal  
with a wide range of data requirements.  This release allows you to  
see what Ratcl is today, and where it's headed.

For information about this release, see http://www.vlerq.org/vlerq/250

Ratcl was recently presented at the Tcl 2005 Europe conference in  
Bergisch Gladbach - the paper and slides ar available at http:// 
www.equi4.com/docs/tcl2005e/ and form a good introduction, but keep  
in mind that the syntax described in the paper has already evolved  
further.  The most up-to-date documentation is in the ratcl.kit  
starkit and the ratcl.pdf docs.

The Ratcl development is part of a larger project called "Vlerq", see  
http://www.vlerq.org to get more information about the scope and  
goals of this long-term research project, including other language  
bindings.

I welcome all feedback and suggestions, preferably on the wiki-based  
discussion forum on the Vlerq website.

Enjoy,
Jean-Claude