DOC_EN.MD



Description of AG.Logs library

TAGLog = class abstract

It is abstract class for using in any parts of code.

public metods & propertys

• class function GenerateLogString(const s:string;o:TObject=nil):string;static;

  Function for add time and object information (if o is not nil) to string.

• procedure Indent();

  Procedure for add indent to all next strings.

• procedure UnIndent();

  Procedure for remove indent from all next strings.

• procedure Write(const Text:string;o:TObject=nil);

  Procedure for writing string in log.

• property IndentText:string;

  String what using as indent symbol in logs. Default value is DefOneTabStr const(two spaces).

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TAGRamLog = class(TAGLog)

Write log in RAM buffer.

public metods & propertys

• buf:String;

  Buffer when you can find log.

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TAGDiskLog = class(TAGLog)

File log.

public metods & propertys

• constructor Create(const FileName:String);

  Use to create log from file name. If file not exist if will created.

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TAGNullLog = class(TAGLog)

Doesn't do anything.

Use if you don't need log, but don't want del logging from code.

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TAGCommandLineLog = class(TAGLog)

Write log to command line.

public metods & propertys

• constructor Create();

  Use to create log to default commandline.

• constructor Create(Handele:THandle);

  Use to create log from winapi handle (Windows only). Use as:

  Log:=TAGCommandLineLog.Create(GetStdHandle(STD_OUTPUT_HANDLE));

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TAGStreamLog = class(TAGLog)

Write log to pascal stream (TStream).

public metods & propertys

• constructor Create(Astream:TStream);

  Use to create log from pascal stream (TStream).

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TAGCallBackLog = class(TAGLog)

Write log to callback.

public metods & propertys

• TCallBack

  Type. In delphi it is anonimus procedure, in free pascal - standart procedure. Declaration:

  TCallBack={$IFNDEF FPC}reference to{$ENDIF}procedure(s:string);

• constructor Create(ACallBack:TCallBack);

  Use to create log from callback.

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TAGMultiLog = class(TAGLog)

Writes several logs.

public metods & propertys

• TLogsList

  Type for list of logs. In delphi it is System.Generics.Collections.TList, in free pascal - FGL.TFPGList. Declaration:

  TLogsList={$IFDEF FPC}specialize TFPGList<TAGLog>{$ELSE}TList<TAGLog>{$ENDIF}

• constructor Create(ALogs:TLogsList);

  Use to create log from TLogsList. If ALogs is nil will used empty list.