Enables XTERM escape code \eO to allow using F1-F4 on a mac

lib/tty/reader/console.rb

@@ -10,6 +10,7 @@ class Reader
     class Console
       ESC = "\e"
       CSI = "\e["
+      XTERM = "\eO"
 
       TIMEOUT = 0.1
 
@@ -31,7 +32,7 @@ def initialize(input)
         @input = input
         @mode  = Mode.new(input)
         @keys  = Keys.ctrl_keys.merge(Keys.keys)
-        @escape_codes = [[ESC.ord], CSI.bytes.to_a]
+        @escape_codes = [[ESC.ord], CSI.bytes.to_a, XTERM.bytes.to_a]
       end
 
       # Get a character from console with echo

spec/unit/read_keypress_spec.rb

@@ -25,6 +25,18 @@
     expect(answer).to eq("ㄱ")
   end
 
+  TTY::Reader::Keys.keys.each do |code, name|
+    it "reads #{Shellwords.escape(code)} as a #{name} key press" do
+      reader = described_class.new(input: input, output: out, env: env)
+      input << code
+      input.rewind
+
+      answer = reader.read_keypress
+
+      expect(answer).to eq(code)
+    end
+  end
+
   context "when Ctrl+C pressed" do
     it "defaults to raising InputInterrupt" do
       reader = described_class.new(input: input, output: out, env: env)