dex 1.0 (new formula)

dex is a small and easy to use text editor

Closes Homebrew/homebrew#40477.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>

Formula/dex.rb

@@ -0,0 +1,27 @@
+class Dex < Formula
+  desc "Dextrous text editor"
+  homepage "https://github.com/tihirvon/dex"
+  url "https://github.com/tihirvon/dex/archive/v1.0.tar.gz"
+  sha256 "4468b53debe8da6391186dccb78288a8a77798cb4c0a00fab9a7cdc711cd2123"
+
+  head "https://github.com/tihirvon/dex.git"
+
+  depends_on "homebrew/dupes/ncurses" => :optional
+  depends_on "homebrew/dupes/libiconv" => :optional
+
+  def install
+    args = ["prefix=#{prefix}",
+            "CC=#{ENV.cc}",
+            "HOST_CC=#{ENV.cc}"]
+
+    args << "VERSION=#{version}" if build.head?
+
+    inreplace "Makefile", /-lcurses/, "-lncurses" if build.with? "ncurses"
+
+    system "make", "install", *args
+  end
+
+  test do
+    system bin/"dex", "-V"
+  end
+end