This is a simple but useful module to handle data logging in large applications.
Log messages will be written to the stdout (same as Print). A .log file by the same name as your application will also be automatically written.
Instead of commenting out a bunch of Print() commands, you can just enable/disable logging with AppLogMode(). An optional callback can be specified to be called for every logged string. This allows you to send the output to a console window for your application. For example, my callback function writes the string to a textarea gadget the user can view.
Module leadwerks.applog
Import brl.standardio
Import brl.filesystem
Import brl.system
Strict
Private
Global AppLogEnabled
Global AppLogStream:TStream
Global AppLogCallback(text$)
Public
Rem
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EndRem
Function AppLogMode(mode,callback:Byte Ptr=Null)
If Not mode AppLog "Logging stopped"
AppLogEnabled=mode
AppLogCallback=callback
If mode AppLog "Logging started"
EndFunction
'Flags:
'1 - Error
'2 - Don't return line
'4 - Notification box
Rem
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EndRem
Function AppLog(text$,flags=0)
If Not AppLogEnabled Return
If Not AppLogStream AppLogStream=WriteFile(StripExt(AppFile)+".log")
If (4 & flags) Notify text,(1 & flags)
If (1 & flags) text="Error: "+text
If Not (2 & flags) text:+Chr(13)+Chr(10)
If AppLogStream AppLogStream.WriteString text
WriteStdout text
If AppLogCallback<>Null AppLogCallback(text)
EndFunction
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