[ruby/reline] Only show dialogs if default external encoding is UTF-8

Fixes a crash in IRB if a dialog is displayed and the default external encoding is not UTF-8: /home/jeremy/tmp/reline/lib/reline/line_editor.rb:731:in `write': U+2588 from UTF-8 to US-ASCII (Encoding::UndefinedConversionError) ruby/reline@f570525ecd
ruby · Oct 8, 2021 · eb4682b · eb4682b
1 parent 1251edd
commit eb4682b
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/lib/reline/line_editor.rb b/lib/reline/line_editor.rb
@@ -624,6 +624,7 @@ def add_dialog_proc(name, p, context = nil)
 
   DIALOG_DEFAULT_HEIGHT = 20
   private def render_dialog(cursor_column)
+    return unless Encoding.default_external == Encoding::UTF_8
     @dialogs.each do |dialog|
       render_each_dialog(dialog, cursor_column)
     end