lib/review/epubmaker/content.rb in review-5.3.0 vs lib/review/epubmaker/content.rb in review-5.4.0

@@ -74,10 +74,10 @@
       # Complement other parameters by using file parameter.
       def complement
         if @id.nil?
           @id = @file.gsub(%r{[\\/. ]}, '-')
         end
-        if @id =~ /\A[^a-z]/i
+        if /\A[^a-z]/i.match?(@id)
           @id = "rv-#{@id}"
         end
         @id = CGI.escape(@id).gsub('%', '_25_')
 
         if !@file.nil? && @media.nil?