Search Results for "dfa"

...It generates Fortran declarations for tree node identifiers and named constants that represent the PDA. The lexer generator accepts regular expressions and generates a DFA. It generates Fortran declarations for character classes, recognized objects, named constants that represent the DFA. A third program generates declarations that connect the parser and lexer. The LR parser generator and lexer generator both use parsers and lexers generated by themselves. An infrastructure to use a generated lexer and parser is therefore included as part of these programs.

The goal of this project is to provide a generator for lexical analyzers of maximum computational efficiency and maximum range of applications. This includes the support for Unicode (UTF8, UTF16, ...) and a large variety of other encodings directly and via nested converters such as ICU(tm) and IConv. Sophisticated buffer handling allows to operate on plain file streams, on sockets, or manually fed buffer content. 'Ready-to-build' examples explain related concepts and facilitate practical...

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.

This project is derived from the dk.brics.automaton DFA library, version 1.11-8. The most significant change is the addition of a 'info' field to automaton states, allowing them to be associated with a token type. A few automaton operations were modified to preserve the value of this field. I have not given much thought to whether it would even make sense to preserve the 'info' field through some of the other operations.

JPlex is an unconventional lexical analyzer generator for Java. JPlex lexers are NIO-based, DFA-powered, push-driven, and fully decoupled and reusable. Their state machines are precompiled and serialized, so run time initialization is fast no matter how large the rule set. JPlex is not a parser generator; it only generates an interface for its parsers, and it does not build a parse tree. When the lexer identifies a token that has a named event associated with it, it passes the token to the parser method associated with that event. ...

RexRex is a Regexp matching engine based on Automata Theory Principles (so-called DFA Engine) Implemented in ANSI C . currently it supports (,),*,+,?,Character classes ([],w,s,..etc) and escaping FWIW Rex is king in Latin;so it's RexKing :)

Pure Python implementation of GOLD Parser Engine. GOLD Parser Engine is a LALR(1) parser with DFA tokenizer. It uses compiled grammar table generated by GOLD Parser Builder (not included - available on http://www.devincook.com/goldparser)