lib/textbringer/modes/programming_mode.rb in textbringer-1.0.0 vs lib/textbringer/modes/programming_mode.rb in textbringer-1.0.1

@@ -1,7 +1,5 @@
-# frozen_string_literal: true
-
 module Textbringer
   class ProgrammingMode < FundamentalMode
     # abstract mode
     undefine_command(:programming_mode)
 
@@ -30,10 +28,10 @@
 
     # Return true if modified.
     def indent_line
       result = false
       level = calculate_indentation
-      return result if level.nil?
+      return result if level.nil? || level < 0
       @buffer.save_excursion do
         @buffer.beginning_of_line
         @buffer.composite_edit do
           if @buffer.looking_at?(/[ \t]+/)
             s = @buffer.match_string(0)