This is a pure Lua (+ LPEG) implementation of Datalog.

The core interpreter (datalog/datalog.lua) is a modified version of John D. Ramsdell's Datalog from the MITRE corporation.

lua main.lua examples/path.dl

PUC Lua 5.1 or above + LPEG. This is not tested with LuaJIT (but it probably works).

Tests depend on cwtest.

• datalog/datalog.lua is Copyright (C) 2004 The MITRE Corporation and released under the GNU LGPL.

• All other files are Copyright (c) 2016 Pierre Chapuis and released under the MIT license, see LICENSE.txt.