Projects

Irony — .NET Language Implementation Kit

Irony is a development kit for implementing languages on .NET platform. Unlike most existing yacc/lex-style solutions Irony does not employ any scanner or parser code generation from grammar specifications written in a specialized meta-language. In Irony the target language grammar is coded directly ... [More] in c# using operator overloading to express grammar constructs. Irony's scanner and parser modules use the grammar encoded as c# class to control the parsing process. See the expression grammar sample for an example of grammar definition in c# class, and using it in a working parser. [Less]

Lepl

Lepl is a parser for Python 3 (mostly backwards compatible with 2.6). Features: * Parsers are Python code, defined in Python itself. No separate grammar is necessary. * Friendly syntax using Python's operators allows grammars to be defined in a declarative ... [More] style close to BNF. * Integrated, optional lexer simplifies handling whitespace. * Built-in AST support with support for iteration, traversal and re-writing. * Generic, pure-Python approach supports parsing a wide variety of data including bytes (Python 3+ only). * Well documented and easy to extend. * Unlimited recursion depth (co-routines); memoisation; backtracking; etc - basically, it's recursive descent, done right. [Less]