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{ lib, buildPythonPackage, fetchFromGitHub, pythonOlder
, colorama, regex
, pytest-runner, pytestCheckHook, pytest-mypy
}:
buildPythonPackage rec {
pname = "tatsu";
version = "5.7.1";
# upstream only supports 3.10+
disabled = pythonOlder "3.10";
src = fetchFromGitHub {
owner = "neogeny";
repo = "TatSu";
rev = "v${version}";
sha256 = "12ljff6l29q92625pgsg4f7xf4dz6iz1c3zdkzz188s4lnwpy8b8";
};
nativeBuildInputs = [ pytest-runner ];
propagatedBuildInputs = [ colorama regex ];
checkInputs = [ pytestCheckHook pytest-mypy ];
pythonImportsCheck = [ "tatsu" ];
meta = with lib; {
description = "Generates Python parsers from grammars in a variation of EBNF";
longDescription = ''
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://tatsu.readthedocs.io/";
license = licenses.bsd2;
maintainers = with maintainers; [ primeos ];
};
}
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