Improve Emoji support if recent unicode-display_width is available

Author: janlelis

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Irbtools Changelog
 
+## Next (unreleased)
+
+-   Improve Emoji support if recent unicode-display_width is available
+
 ## 4.1.0
 
 -   Fix command loading (was broken in previous version)

lib/irbtools/implementation.rb

@@ -111,6 +111,11 @@ def configure_irb!
         add_command_aliases
         rename_ls_to_ils
       end
+
+      # Improve Emoji support if recent unicode-display_width is available
+      if defined?(Reline) && defined?(Unicode::DisplayWidth) && Unicode::DisplayWidth::VERSION >= "3.0"
+        require "unicode/display_width/reline_ext"
+      end
     end
 
     def set_propmt