lib/thor/parser/options.rb in wycats-thor-0.11.0 vs lib/thor/parser/options.rb in wycats-thor-0.11.1

@@ -120,12 +120,19 @@
       end
 
       # Parse the value at the peek analyzing if it requires an input or not.
       #
       def parse_peek(switch, option)
-        if option.input_required?
-          return nil if no_or_skip?(switch)
-          raise MalformattedArgumentError, "no value provided for option '#{switch}'" unless current_is_value?
+        unless current_is_value?
+          if option.boolean?
+            # No problem for boolean types
+          elsif no_or_skip?(switch)
+            return nil # User set value to nil
+          elsif option.string? && !option.required?
+            return option.human_name # Return the option name
+          else
+            raise MalformattedArgumentError, "no value provided for option '#{switch}'"
+          end
         end
 
         @non_assigned_required.delete(option)
         send(:"parse_#{option.type}", switch)
       end