Context Free Languages

Context Free is a program that generates images from written instructions called a grammar. The program follows the instructions in a few seconds to create images that can contain millions of shapes. Context Free is, well, free! You can download the software and start creating art on your...

Bison project is a general-purpose parser generator that converts a grammar description for an LALR context-free grammar into a C program to parse that grammar. Once you are proficient with Bison, you can use it to develop a wide range of language parsers, from those used in simple desk...

Bison is a general-purpose parser generator that converts an annotated context-free grammar into an LALR(1) or GLR parser for that grammar. Once you are proficient with Bison, you can use it to develop a wide range of language parsers, from those used in simple desk calculators to complex...


Platforms: Mac

Java classes that enable definition of new Charsets based on other existing Charsets, without additional programming. Includes a character set with Kamenik encoding.


Platforms: Windows, Mac, Linux

Tools for finite automata simulation, minimization and grammar utilities (left recursion removal, context free grammar simplification and transformation to Chomsky Normal Form).


Platforms: Windows, Mac, Linux

Python is a nice scripting language. It even gives you access to it's own parser and compiler. It also gives you access to different other parsers for special purposes like XML and string templates. But sometimes you may want to have your own parser. This is what's pyPEG for. To get a quick...


Platforms: Mac

Python is a nice scripting language. It even gives you access to it's own parser and compiler. It also gives you access to different other parsers for special purposes like XML and string templates. But sometimes you may want to have your own parser. This is what's pyPEG for. And pyPEG supports...


Platforms: *nix

Rats! is an easily extensible parser generator for C-like languages; though currently it only generates parsers in Java. Rats! project has been explicitly designed so that grammars are concise and easily modifiable. To this end, Rats! - organizes grammars into modules, - builds on parsing...


Platforms: *nix

Libdejector provides a simple, easy-to-use set of libraries which help Web developers give their database queries a great degree of resistance to SQL injection attacks. libdejector library currently provides Python bindings to protect PostgreSQL 8.0.3 through 8.0.5. Installation: The...


Platforms: *nix

LLg is a recursive descent parser generator. SYNOPSIS use LLg; @tokens = ( ADDOP => [-+], LEFTP => [(], RIGHTP => [)], INTEGER => 0|[1-9][0-9]*, ); $reader = Lex->new(@tokens); $ADDOP->debug; $expr = And->new(($factor, Any->new($ADDOP, $factor)), sub { shift(@_); my $result =...


Platforms: *nix

Felix is an advanced Algol like procedural programming language with a strong functional subsystem. It features ML style typing, first class functions, pattern matching, garabge collection, polymorphism, and has built in support for high performance microthreading, regular expressions and context...


Platforms: *nix

Memler is a next generation of vocabulary trainers. Also it's a fast dictionary. Skins support, free words libraries, libraries manager, reminder mode and a lot of other features. Just add any words you want to learn in your words library, and in several days you'll know them well. Let Memler...


Platforms: Windows

A natural language parser is a program that works out the grammatical structure of sentences, for instance, which groups of words go together (as "phrases") and which words are the subject or object of a verb. Probabilistic parsers use knowledge of language gained from hand-parsed sentences to...


Platforms: Mac

Kelbt project can generate backtracking LALR parsers. Standard LALR parser generators emit an error upon encountering a conflict in the parse tables. Kelbt forges onward, generating parsers which handle conflicts by backtracking at runtime. Kelbt is able to generate a parser for any context-free...


Platforms: *nix

Colorer provides source text syntax highlighting services. It colorizes source codes in editor systems (more than 200 syntaxes). Uses powerful HRC format(XML, RE, context free grammas), allowing to support any language. Available as Eclipse plugin.


Platforms: Windows, Mac, Linux

EpochX is an open source genetic programming framework, specifically for analysing the properties of evolutionary automatic programming. It supports 3 popular representations - Strongly-Typed GP, Context-Free Grammar GP and Grammatical Evolution.


Platforms: Windows, Mac, Linux

Structure Synth is a cross-platform application for generating 3D structures by specifying a design grammar. Even simple systems may generate surprising and complex structures. The design grammar approach was originally devised by Chris Coyne (for a 2D implementation see the popular Context Free...


Platforms: Mac

You get: - An actual language that does much database work. - A generator for context-free-grammar parsers, written in and for PHP. (This is way cool, dudes.) - A wikifier . - A big load of automata theory reduced to practice. - The latest and greatest Functional PHP Extensions, although...


Platforms: Windows, Mac, *nix, PHP, BSD Solaris

You get:- An actual language that does much database work.- A generator for context-free-grammar parsers, written in and for PHP. (This is way cool, dudes.)- A wikifier .- A big load of automata theory reduced to practice.- The latest and greatest Functional PHP Extensions, although those are...


Platforms: PHP

Many students learn best from concrete examples. Generating concrete examples of the algorithms used in LL(1) and LR(1) parsing can be tedious for instructors and students. CFG Experimenter is a tool for generating such examples, but beyond that, it is also scaffolding for a programming project...


Platforms: Mac