homebrew-core/Formula/flex.rb
2016-08-14 11:26:00 +01:00

46 lines
1.4 KiB
Ruby

class Flex < Formula
desc "Fast Lexical Analyzer, generates Scanners (tokenizers)"
homepage "http://flex.sourceforge.net"
url "https://github.com/westes/flex/releases/download/v2.6.1/flex-2.6.1.tar.xz"
sha256 "2c7a412c1640e094cb058d9b2fe39d450186e09574bebb7aa28f783e3799103f"
bottle do
revision 1
sha256 "b9f97a19146f3086b4084e83c91c30329b3536fc3032687de724f8408c2e2e3b" => :el_capitan
sha256 "36715dd9edb6e16caf33e1d5e6b87447da1bd40fb49325e18d7269bc162bad81" => :yosemite
sha256 "0a322eea192fb9b68e869d180c9c7c0ec099d72c574505c8af1ba5485a601e95" => :mavericks
end
keg_only :provided_by_osx, "Some formulae require a newer version of flex."
depends_on "gettext"
def install
system "./configure", "--disable-dependency-tracking",
"--disable-silent-rules",
"--enable-shared",
"--prefix=#{prefix}"
system "make", "install"
end
test do
(testpath/"test.flex").write <<-EOS.undent
CHAR [a-z][A-Z]
%%
{CHAR}+ printf("%s", yytext);
[ \\t\\n]+ printf("\\n");
%%
int main()
{
yyin = stdin;
yylex();
}
EOS
system "#{bin}/flex", "test.flex"
system ENV.cc, "lex.yy.c", "-L#{lib}", "-lfl", "-o", "test"
assert_equal shell_output("echo \"Hello World\" | ./test"), <<-EOS.undent
Hello
World
EOS
end
end