ttyplot 1.4 (new formula)

Closes #44382.

Signed-off-by: FX Coudert <fxcoudert@gmail.com>

Formula/ttyplot.rb

@@ -0,0 +1,20 @@
+class Ttyplot < Formula
+  desc "Realtime plotting utility for terminal with data input from stdin"
+  homepage "https://github.com/tenox7/ttyplot"
+  url "https://github.com/tenox7/ttyplot/archive/1.4.tar.gz"
+  sha256 "11974754981406d19cfa16865b59770faaf3ade8d909d9a0134dc56e00d29bd4"
+
+  uses_from_macos "ncurses"
+
+  def install
+    system "make"
+    bin.install "ttyplot"
+  end
+
+  test do
+    system "#{bin}/ttyplot", "--help"
+    # ttyplot normally reads data over time:
+    # piping lines to it will just let it start and immediately exit successfully.
+    system "echo 1 2 3 | #{bin}/ttyplot"
+  end
+end