# File rtex.rb, line 1257
        def execute()
                @first                = false
                Logger.add( 5, self.class, "Execute #{self.class} (#{Config.ps2pdf})")
                @dataChanged = false  #clear flag
                stdoutOff()
                result = system( Config.ps2pdf( @filename ) )
                stdoutOn()
                @log = get_stdout()
                put_analyse( analyse( @log ) )
                if !result
                        Logger.add(1, self.class, "Error executing #{self.class}")
                end
                add_stdout( self.class ) if @stdoutInclude
                add_stderr( self.class ) if @stderrInclude
                return result
        end