plaindb is a plain text database package. It comprises the file format, and a
set of modules on Perl, Tcl and python to access the databases, plus a basic
shell interface.
Higher level interfaces are also included for local (GUI) and web
access.
Text-Query-SQL is derived from the Text-Query module. Text-Query is a general purpose query parser and resolver. It is able to parse the AltaVista 'simple query' and 'advanced query' syntax. The syntax tree is then used to build a search query.