# File ar-extensions/lib/ar-extensions/extensions.rb, line 402
    def self.process( key, val, caller )
      return nil unless val.is_a?( Regexp )
      r = field_result( key, caller )
      return Result.new( "#{caller.quoted_table_name}.#{r.fieldname} #{r.negate? ? '!~ ':'~'} ?", val )
    end