homebrew-core/Formula/flex.rb

47 lines
1.4 KiB
Ruby

class Flex < Formula
desc "Fast Lexical Analyzer, generates Scanners (tokenizers)"
homepage "https://flex.sourceforge.io"
url "https://github.com/westes/flex/releases/download/v2.6.3/flex-2.6.3.tar.gz"
sha256 "68b2742233e747c462f781462a2a1e299dc6207401dac8f0bbb316f48565c2aa"
bottle do
sha256 "ab9447f77fbef802c703ad7e8ac606e217205880b55b20b90c2f58674f848162" => :sierra
sha256 "3f8c8003a5ae1f88cc397590c85787f1710f8798fcfd9ed8691d81f3df20e926" => :el_capitan
sha256 "915dad088301f2bb607c3af7a7eb13946500e1a0566767e91ecbbcaf7c813725" => :yosemite
end
keg_only :provided_by_osx, "Some formulae require a newer version of flex."
depends_on "help2man" => :build
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