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{ stdenv, fetchurl }:
let
version = "1.0";
srcs = {
lemon = fetchurl {
sha256 = "1grm95m2cnc61zim332g7z8nchmcy91ljf50k13lm421v0ygyyv6";
url = "http://www.sqlite.org/src/raw/tool/lemon.c?name=039f813b520b9395740c52f9cbf36c90b5d8df03";
name = "lemon.c";
};
lempar = fetchurl {
sha256 = "09nki0cwc5zrm365g6plhjxz3byhl9w117ab3yvrpds43ks1j85z";
url = "http://www.sqlite.org/src/raw/tool/lempar.c?name=3617143ddb9b176c3605defe6a9c798793280120";
name = "lempar.c";
};
};
in stdenv.mkDerivation {
name = "lemon-${version}";
phases = [ "buildPhase" "installPhase" ];
buildPhase = ''
sh -xc "$CC ${srcs.lemon} -o lemon"
'';
installPhase = ''
install -Dvm755 lemon $out/bin/lemon
install -Dvm644 ${srcs.lempar} $out/bin/lempar.c
'';
meta = with stdenv.lib; {
inherit version;
description = "An LALR(1) parser generator";
longDescription = ''
The Lemon program is an LALR(1) parser generator that takes a
context-free grammar and converts it into a subroutine that will parse a
file using that grammar. Lemon is similar to the much more famous
programs "yacc" and "bison", but is not compatible with either.
'';
homepage = http://www.hwaci.com/sw/lemon/;
license = licenses.publicDomain;
platforms = platforms.unix;
maintainers = with maintainers; [ nckx ];
};
}
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