     }
     
     /**
-    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

import Foundation

public class SwiftLog {
    /// log level. Print logs which >= logLevel
    public var logLevel: LogLevel
    /// date format

        let col = columnNum
        let lvl = logLevel
        
        if let h = howToLog {
            h(logLevel: lvl, msg: msg, fileName: file, functionName: fun, lineNum: line, columnNum: col)
        } else {
            print("\(date) \(file) : \(fun) : \(line) : \(col) \(lvl) \(msg)")
        }
    }
}

