func NewLogger(logger *log.Logger, level LogLevel) *Logger {
	switch {
	case logger == nil && level != LOG_NONE:
		prefix, flags := "", 0
		switch level {
		case LOG_ERRORS:
			flags = log.Ldate | log.Ltime
		case LOG_EVENTS:
			prefix = os.Args[0]
			flags = log.Ldate | log.Ltime
		case LOG_TRACE:
			prefix = os.Args[0]
			flags = log.Ldate | log.Ltime | log.Lshortfile
		case LOG_DEBUG:
			prefix = os.Args[0]
			flags = log.Ldate | log.Ltime | log.Lmicroseconds | log.Llongfile
		}

		if prefix != "" {
			prefix = fmt.Sprintf("[%d %s] ", os.Getpid(), path.Base(prefix))
		}
		logger = log.New(os.Stderr, prefix, flags)
	case logger == nil && level == LOG_NONE:
		return NoLogger
	}
	return &Logger{logger, level}
}
// NewLogger returns a newly created Logger initialized with logger and level.
// If the logger is nil and level != LOG_NONE then a defualt log.New logger is
// provided.
NewLogger returns a newly created Logger initialized with logger and level.
If the logger is nil and level != LOG_NONE then a defualt log.New logger is
provided.
// NewLogger returns a newly created Logger initialized with logger and level . // If the logger is nil and level ! = LOG_NONE then a defualt log . New logger is // provided .
func NewLogger(logger *log.Logger, level LogLevel) *Logger {
	switch {
	case logger == nil && level != LOG_NONE:
		prefix, flags := "", 0
		switch level {
		case LOG_ERRORS:
			flags = log.Ldate | log.Ltime
		case LOG_EVENTS:
			prefix = os.Args[0]
			flags = log.Ldate | log.Ltime
		case LOG_TRACE:
			prefix = os.Args[0]
			flags = log.Ldate | log.Ltime | log.Lshortfile
		case LOG_DEBUG:
			prefix = os.Args[0]
			flags = log.Ldate | log.Ltime | log.Lmicroseconds | log.Llongfile
		}
		if prefix != "" {
			prefix = fmt.Sprintf("[%d %s] ", os.Getpid(), path.Base(prefix))
		}
		logger = log.New(os.Stderr, prefix, flags)
	case logger == nil && level == LOG_NONE:
		return NoLogger
	}
	return &Logger{logger, level}
}
func NewLogger ( logger * log . Logger , level LogLevel ) * Logger { switch { case logger == nil && level != LOG_NONE : prefix , flags := " " , 0 switch level { case LOG_ERRORS : flags = log . Ldate | log . Ltime case LOG_EVENTS : prefix = os . Args [ 0 ] flags = log . Ldate | log . Ltime case LOG_TRACE : prefix = os . Args [ 0 ] flags = log . Ldate | log . Ltime | log . Lshortfile case LOG_DEBUG : prefix = os . Args [ 0 ] flags = log . Ldate | log . Ltime | log . Lmicroseconds | log . Llongfile } if prefix != " " { prefix = fmt . Sprintf ( " " , os . Getpid ( ) , path . Base ( prefix ) ) } logger = log . New ( os . Stderr , prefix , flags ) case logger == nil && level == LOG_NONE : return NoLogger } return & Logger { logger , level } }
NewLogger returns a newly created Logger initialized with logger and level.
NewLogger returns a newly created Logger initialized with logger and level .