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Tautomaton is a C++11 -template library for deterministic (DFA) and non-deterministic finite automata (NFA). It supports regular expressions and efficient input matching of multiple regexps simultaneously. The library comes with a somewhat grep-like command-line tool for showcasing these features.
Regular expressions system with Lisp-styled syntax.
Also this software can be used as a library for embedding lisp-syntax regular expressions in an another programm.
PileWorks provides the organizational structure for coordinating several different projects which approach some aspect of Pile Technology. PileWorks defines a set of interfaces and implements some basic infrastructure for Pile engines and agents.