Trident Logger Class for OpenQM

Introduction

The Trident Logger Class for OpenQM is a free QMBasic class that takes advantage of the object oriented capabilities of QMBasic, allowing you to easily add logging capabilities to your applications.  Logging is valuable for diagnostic purposes and usage analysis.

Trident's Logger class makes adding such functionality to your applications very easy.  Simply create an instance of the Logger class, set two properties, then invoke the WriteLog() method any time you wish to add an entry to the log.

 Logger = Object("tis.logger.cls") 
 Logger->LogFileName = "MyLogFile" 
 Logger->LogItemID = "test.log"    
 Logger->WriteLog("Hello World")   

• Single command logging.  Just invoke the WriteLog() method and the class takes care of everything else.
• Manipulate multiple logs with just a single instance of the class.
• Selective logging via filters known as Log Tags.
• Ability to automatically add a date-time stamp to log entries.
• Enable/disable logging entirely without having to comment out WriteLog() statements in your code.
• Ability to limit a log's maximum number of recent entries (auto trimming).
• Ability to update logs by appending or prepending log entries

01/01/06 14:32:01 --- process started                
01/01/06 14:32:02 --- loading data                   
01/01/06 14:50:21 --- formatting transfer            
01/01/06 14:50:22 --- warning 223 invalid tags found 
01/01/06 14:50:22 --- clean-up temp files            
01/01/06 14:51:07 --- process finished