homebrew-core/Formula/re2c.rb
2019-08-03 20:22:18 +08:00

41 lines
1.2 KiB
Ruby

class Re2c < Formula
desc "Generate C-based recognizers from regular expressions"
homepage "http://re2c.org"
url "https://github.com/skvadrik/re2c/releases/download/1.2/re2c-1.2.tar.xz"
sha256 "000b7b8c3aeaf61fb492b58352574a5777518336fc96071f4d083a7397be841c"
bottle do
cellar :any_skip_relocation
sha256 "cf04c6f2c4631614ddca8391e0d443428b92bff5858d0a87150eb26366e9a431" => :mojave
sha256 "58a4fa0867037c92f9c9c29159f64a4435cdd2af9f76112213fc67ce47f94d5d" => :high_sierra
sha256 "71a1e1aa49f524d87452641a05f29f117d86d6f87bac19a5bdfed96b3ca8aedf" => :sierra
end
def install
system "./configure", "--disable-dependency-tracking",
"--prefix=#{prefix}"
system "make", "install"
end
test do
(testpath/"test.c").write <<~EOS
unsigned int stou (const char * s)
{
# define YYCTYPE char
const YYCTYPE * YYCURSOR = s;
unsigned int result = 0;
for (;;)
{
/*!re2c
re2c:yyfill:enable = 0;
"\x00" { return result; }
[0-9] { result = result * 10 + c; continue; }
*/
}
}
EOS
system bin/"re2c", "-is", testpath/"test.c"
end
end