class Flex < Formula desc "Fast Lexical Analyzer, generates Scanners (tokenizers)" homepage "http://flex.sourceforge.net" url "https://downloads.sourceforge.net/flex/flex-2.5.39.tar.bz2" sha256 "add2b55f3bc38cb512b48fad7d72f43b11ef244487ff25fc00aabec1e32b617f" bottle do sha256 "31607eeace06e7460d03b2a0bfb9b13f3ca5b0407eb3e80d75d3b4f1ec43ba0f" => :el_capitan sha1 "a1f8a76465942c6187b00dfa931ac56f22b7ba00" => :yosemite sha1 "533d4351154274d9d68f517b85e1de8e524b2bd5" => :mavericks sha1 "524d471123dbd4ca812e3fc3778afd865df616e6" => :mountain_lion 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-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