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python-yapps2: Yet Another Python Parser System v2

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Zusammenfassung (meist engl.)

Yapps (Yet Another Python Parser System) is an easy to use parser generator that is written in Python and generates Python code. Although there are several parser generators already available for Python, I had different goals, including learning about recursive descent parsers. Yapps is simple, is easy to use, and produces human-readable parsers. It is not fast, powerful, or particularly flexible. Yapps is designed to be used when regular expressions are not enough and other parser systems are too much: situations where you may write your own recursive descent parser. On this page you can find both Yapps 1 and Yapps 2. Yapps 1 is more like a functional language (concise grammars of the form when you see this, return this), while Yapps 2 is more like an imperative language (more verbose grammars of the form if/while you see this, do this). Both are completely free.