     }
     
     /**
-    print log.
-    If you want to custom log format, change this function.
+    execute log.
+    If you want to custom log format, change howToLog.
     
     - parameter logLevel:     logLevel
     - parameter msg:          msg

        let col = columnNum
        let lvl = logLevel
        
        print("\(date) \(file) : \(fun) : \(line) : \(col) \(lvl) \(msg)")
    }
}


import Foundation

public class SwiftLog {
    /// how to log
    public var howToLog: ((logLevel: LogLevel, msg: String, fileName: String, functionName: String, lineNum: Int, columnNum: Int) -> Void)?
    /// log level. Print logs which >= logLevel
    public var logLevel: LogLevel
    /// date format
