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class Flex < Formula
homepage "http://flex.sourceforge.net"
url "https://downloads.sourceforge.net/flex/flex-2.5.39.tar.bz2"
sha1 "267794c709d5c50f2dcb48ff5d8dcbbfe40f953e"
bottle do
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
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