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class Flex < Formula
homepage "http://flex.sourceforge.net"
url "https://downloads.sourceforge.net/flex/flex-2.5.37.tar.bz2"
sha1 "db4b140f2aff34c6197cab919828cc4146aae218"
bottle do
revision 1
sha1 "0a2bb0ce9a49330e5fd40b6e409a353972cf8840" => :yosemite
sha1 "0dd7fc9c36a6258b2e456e7dd0c5818d07e2a2ea" => :mavericks
sha1 "69b5f449a9c0bf5fd37f999dca5ccfd120a6f389" => :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",
"--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
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