generator that is written in Python and generates Python code. 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. 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). Yapps 2 is more flexible than Yapps
1 but it requires Python 1.5 and is not backwards-compatible with
Yapps 1.
This is the development version of Yapps 2.
WWW: http://theory.stanford.edu/~amitp/yapps/
PR: ports/123154
Submitted by: Matthew X. Economou <xenophon+fbsdports@irtnog.org>
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