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# Copyright 2013-2023 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)
from spack.package import *
class PyTatsu(PythonPackage):
"""TatSu (the successor to Grako) is a tool that takes grammars in
a variation of EBNF as input, and outputs memoizing (Packrat) PEG
parsers in Python."""
homepage = "https://github.com/neogeny/tatsu"
pypi = "TatSu/TatSu-4.4.0.zip"
license("BSD-2-Clause")
version("4.4.0", sha256="80713413473a009f2081148d0f494884cabaf9d6866b71f2a68a92b6442f343d")
variant("future_regex", default=True, description="Use regex implementation")
depends_on("python@3.6:", type=("build", "run"), when="@4.5:")
depends_on("py-setuptools", type="build")
# optional dependency, otherwise falls back to standard implementation
depends_on("py-regex@2018.8:", type=("build", "run"), when="+future_regex")
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