lib/rouge/lexers/fortran.rb in rouge-2.0.5 vs lib/rouge/lexers/fortran.rb in rouge-2.0.6

@@ -14,10 +14,10 @@
                 '*.F90', '*.F95'
       mimetypes 'text/x-fortran'
 
       name = /[A-Z][_A-Z0-9]*/i
       kind_param = /(\d+|#{name})/
-      exponent = /[ED][+-]\d+/
+      exponent = /[ED][+-]?\d+/i
 
       def self.keywords
         # Fortran allows to omit whitespace between certain keywords...
         @keywords ||= Set.new %w(
           allocatable allocate assignment backspace block blockdata call case