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class Lemon < Formula
homepage "http://www.hwaci.com/sw/lemon/"
url "http://tx97.net/pub/distfiles/lemon-1.69.tar.bz2"
sha256 "bc7c1cae233b6af48f4b436ee900843106a15bdb1dc810bc463d8c6aad0dd916"
bottle do
sha256 "e9b8328c8d905424be43404911bff1296c16fbdd83ecfeab7b51917f31c81ab7" => :yosemite
sha256 "a8120db2de1708f3ecd4bddc5775f90cf5c39a55010a90d01b8cd5f58325560e" => :mavericks
sha256 "dd245cd856b28f4d14a3f34e243b29b032becf0809208db66bb4c550e4789a83" => :mountain_lion
end
def install
(share/"lemon").install "lempar.c"
# patch the parser generator to look for the 'lempar.c' template file where we've installed it
inreplace "lemon.c", / = pathsearch\([^)]*\);/, " = \"#{share}/lemon/lempar.c\";"
system ENV.cc, "-o", "lemon", "lemon.c"
bin.install "lemon"
end
test do
(testpath/"gram.y").write <<-EOS.undent
%token_type {int}
%left PLUS.
%include {
#include <iostream>
#include "example1.h"
}
%syntax_error {
std::cout << "Syntax error!" << std::endl;
}
program ::= expr(A). { std::cout << "Result=" << A << std::endl; }
expr(A) ::= expr(B) PLUS expr(C). { A = B + C; }
expr(A) ::= INTEGER(B). { A = B; }
EOS
system "#{bin}/lemon", "gram.y"
assert File.exist? "gram.c"
end
end
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