Introduce an abstracted structure about the encoding of Reline

The command prompt on Windows always uses Unicode to take input and print
output but most Reline implementation depends on Encoding.default_external.
This commit introduces an abstracted structure about the encoding of Reline.

1 files changed, 4 insertions, 0 deletions

diff --git a/lib/reline/general_io.rb b/lib/reline/general_io.rb
index 291c14c7b3..6281d5fbf6 100644
--- a/lib/reline/general_io.rb
+++ b/lib/reline/general_io.rb
@@ -1,6 +1,10 @@
 require 'timeout'
 
 class Reline::GeneralIO
+  def self.encoding
+    Encoding.default_external
+  end
+
   RAW_KEYSTROKE_CONFIG = {}
 
   @@buf = []