lib/slop/option.rb in slop-4.4.3 vs lib/slop/option.rb in slop-4.5.0

@@ -1,10 +1,11 @@
 module Slop
   class Option
     DEFAULT_CONFIG = {
       help: true,
       tail: false,
+      underscore_flags: true,
     }
 
     # An Array of flags this option matches.
     attr_reader :flags
 
@@ -105,10 +106,17 @@
       flags.join(", ")
     end
 
     # Returns the last key as a symbol. Used in Options.to_hash.
     def key
-      (config[:key] || flags.last.sub(/\A--?/, '')).tr("-", "_").to_sym
+      key = config[:key] || flags.last.sub(/\A--?/, '')
+      key = key.tr '-', '_' if underscore_flags?
+      key.to_sym
+    end
+
+    # Returns true if this option should be displayed with dashes transformed into underscores.
+    def underscore_flags?
+      config[:underscore_flags]
     end
 
     # Returns true if this option should be displayed in help text.
     def help?
       config[:help]