homebrew-core/Formula/flex.rb
2019-06-18 08:24:15 +02:00

67 lines
2 KiB
Ruby

class Flex < Formula
desc "Fast Lexical Analyzer, generates Scanners (tokenizers)"
homepage "https://github.com/westes/flex"
url "https://github.com/westes/flex/releases/download/v2.6.4/flex-2.6.4.tar.gz"
sha256 "e87aae032bf07c26f85ac0ed3250998c37621d95f8bd748b31f15b33c45ee995"
revision 1
bottle do
sha256 "f326d68bc795592b3211e0ab7401222cdfe4f510cd5d3e5fd364678ae8cba2b2" => :mojave
sha256 "0abf12786daea0fb1be796e24f41163f41943eb3dfb7ba71e4c09f1821083c11" => :high_sierra
sha256 "89fb9ae2ac9be0f60706f40379cdfa51ced78f1638ac8729bc0074e4fcde70cf" => :sierra
sha256 "95c2da56e5487b53ee4afe3ed52a7f59ffe86df4508768b3e48ef042d66e6cc1" => :el_capitan
sha256 "c8aaca29a77a6b3e2383f7d80b12eccbbf131162e5157a4a320117d4c564a4bf" => :yosemite
end
head do
url "https://github.com/westes/flex.git"
depends_on "autoconf" => :build
depends_on "automake" => :build
# https://github.com/westes/flex/issues/294
depends_on "gnu-sed" => :build
depends_on "libtool" => :build
end
keg_only :provided_by_macos, "some formulae require a newer version of flex"
depends_on "help2man" => :build
depends_on "gettext"
def install
if build.head?
ENV.prepend_path "PATH", Formula["gnu-sed"].opt_libexec/"gnubin"
system "./autogen.sh"
end
system "./configure", "--disable-dependency-tracking",
"--disable-silent-rules",
"--enable-shared",
"--prefix=#{prefix}"
system "make", "install"
end
test do
(testpath/"test.flex").write <<~EOS
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
Hello
World
EOS
end
end