upd(framework): logger enhancements, templatepro improvements, loggerpro alignment

  Logger (MVCFramework.Logger):
  - Add format string overloads for LogD/I/W/E/F
  - Add custom tag and message+object overloads
  - Add LogE(Exception) shortcuts
  - Add log level check helpers (IsDebugEnabled, IsInfoEnabled, etc.)
  - Add CreateLogBuilderWithDefaultConfiguration
  - Fix CreateNullLogger to use empty callback appender
  - Add comprehensive unit tests (52 tests in LoggerTestsU.pas)
  - Add logger_with_callback sample

  LoggerPro:
  - Add WindowsEventLogAppender to all packages (d100-d130)
  - Add pending configurator validation in Builder
  - Prevent missing .Done() before .Build() calls

  TemplatePro:
  - Add CompileFromString method for non-file templates
  - Add JSON array path parsing support
  - Add ApplyFilters method
  - Improve for-else block nesting tracking

  ExprEvaluator:
  - Minor improvements

Author: danieleteti

lib/loggerpro/LoggerPro.Builder.pas

@@ -427,6 +427,7 @@   TCallbackAppenderConfigurator = class(TBaseAppenderConfigurator, ICallbackAppe
     FCallback: TLogItemCallback;
     FSynchronizeToMainThread: Boolean;
   public
+    constructor Create(aBuilder: TLoggerProBuilder);
     function WithCallback(aCallback: TLogItemCallback): ICallbackAppenderConfigurator;
     function WithSynchronizeToMainThread(aValue: Boolean): ICallbackAppenderConfigurator;
     function WithLogLevel(aLogLevel: TLogType): ICallbackAppenderConfigurator;
@@ -568,6 +569,7 @@   TLoggerProBuilder = class(TInterfacedObject, ILoggerProBuilder)
     FDefaultRenderer: ILogItemRenderer;
     FDefaultTag: string;
     FStackTraceFormatter: TStackTraceFormatter;
+    FPendingConfiguratorName: string;
   public
     constructor Create;
     destructor Destroy; override;
@@ -611,6 +613,8 @@   TLoggerProBuilder = class(TInterfacedObject, ILoggerProBuilder)
     // Used by configurators
     procedure InternalAddAppender(aAppender: ILogAppender);
     function GetDefaultRenderer: ILogItemRenderer;
+    procedure SetPendingConfigurator(const aName: string);
+    procedure ClearPendingConfigurator;
   end;
 
 { TBaseAppenderConfigurator }
@@ -661,6 +665,17 @@ class function TLoggerProBuilder.New: ILoggerProBuilder;
 procedure TLoggerProBuilder.InternalAddAppender(aAppender: ILogAppender);
 begin
   FAppenders.Add(aAppender);
+  ClearPendingConfigurator;
+end;
+
+procedure TLoggerProBuilder.SetPendingConfigurator(const aName: string);
+begin
+  FPendingConfiguratorName := aName;
+end;
+
+procedure TLoggerProBuilder.ClearPendingConfigurator;
+begin
+  FPendingConfiguratorName := '';
 end;
 
 function TLoggerProBuilder.WriteToAppender(aAppender: ILogAppender): ILoggerProBuilder;
@@ -671,61 +686,73 @@ function TLoggerProBuilder.WriteToAppender(aAppender: ILogAppender): ILoggerProB
 
 function TLoggerProBuilder.WriteToConsole: IConsoleAppenderConfigurator;
 begin
+  SetPendingConfigurator('WriteToConsole');
   Result := TConsoleAppenderConfigurator.Create(Self);
 end;
 
 function TLoggerProBuilder.WriteToSimpleConsole: ISimpleConsoleAppenderConfigurator;
 begin
+  SetPendingConfigurator('WriteToSimpleConsole');
   Result := TSimpleConsoleAppenderConfigurator.Create(Self);
 end;
 
 function TLoggerProBuilder.WriteToFile: IFileAppenderConfigurator;
 begin
+  SetPendingConfigurator('WriteToFile');
   Result := TFileAppenderConfigurator.Create(Self);
 end;
 
 function TLoggerProBuilder.WriteToJSONLFile: IJSONLFileAppenderConfigurator;
 begin
+  SetPendingConfigurator('WriteToJSONLFile');
   Result := TJSONLFileAppenderConfigurator.Create(Self);
 end;
 
 function TLoggerProBuilder.WriteToTimeRotatingFile: ITimeRotatingFileAppenderConfigurator;
 begin
+  SetPendingConfigurator('WriteToTimeRotatingFile');
   Result := TTimeRotatingFileAppenderConfigurator.Create(Self);
 end;
 
 function TLoggerProBuilder.WriteToHTTP: IHTTPAppenderConfigurator;
 begin
+  SetPendingConfigurator('WriteToHTTP');
   Result := THTTPAppenderConfigurator.Create(Self);
 end;
 
 function TLoggerProBuilder.WriteToElasticSearch: IElasticSearchAppenderConfigurator;
 begin
+  SetPendingConfigurator('WriteToElasticSearch');
   Result := TElasticSearchAppenderConfigurator.Create(Self);
 end;
 
 function TLoggerProBuilder.WriteToMemory: IMemoryAppenderConfigurator;
 begin
+  SetPendingConfigurator('WriteToMemory');
   Result := TMemoryAppenderConfigurator.Create(Self);
 end;
 
 function TLoggerProBuilder.WriteToCallback: ICallbackAppenderConfigurator;
 begin
+  SetPendingConfigurator('WriteToCallback');
   Result := TCallbackAppenderConfigurator.Create(Self);
 end;
 
 function TLoggerProBuilder.WriteToSimpleCallback: ISimpleCallbackAppenderConfigurator;
 begin
+  SetPendingConfigurator('WriteToSimpleCallback');
   Result := TSimpleCallbackAppenderConfigurator.Create(Self);
 end;
 
 function TLoggerProBuilder.WriteToOutputDebugString: IOutputDebugStringAppenderConfigurator;
 begin
+  SetPendingConfigurator('WriteToOutputDebugString');
   Result := TOutputDebugStringAppenderConfigurator.Create(Self);
 end;
 
 function TLoggerProBuilder.WriteToUDPSyslog: IUDPSyslogAppenderConfigurator;
 begin
+  SetPendingConfigurator('WriteToUDPSyslog');
   Result := TUDPSyslogAppenderConfigurator.Create(Self);
 end;
 
@@ -734,44 +761,51 @@ function TLoggerProBuilder.WriteToVCLMemo(aMemo: TObject): IVCLMemoAppenderConfi
 begin
   if not (aMemo is TMemo) then
     raise ELoggerPro.Create('WriteToVCLMemo requires a TMemo instance');
+  SetPendingConfigurator('WriteToVCLMemo');
   Result := TVCLMemoAppenderConfigurator.Create(Self, TMemo(aMemo));
 end;
 
 function TLoggerProBuilder.WriteToVCLListBox(aListBox: TObject): IVCLListBoxAppenderConfigurator;
 begin
   if not (aListBox is TListBox) then
     raise ELoggerPro.Create('WriteToVCLListBox requires a TListBox instance');
+  SetPendingConfigurator('WriteToVCLListBox');
   Result := TVCLListBoxAppenderConfigurator.Create(Self, TListBox(aListBox));
 end;
 
 function TLoggerProBuilder.WriteToVCLListView(aListView: TObject): IVCLListViewAppenderConfigurator;
 begin
   if not (aListView is TListView) then
     raise ELoggerPro.Create('WriteToVCLListView requires a TListView instance');
+  SetPendingConfigurator('WriteToVCLListView');
   Result := TVCLListViewAppenderConfigurator.Create(Self, TListView(aListView));
 end;
 
 function TLoggerProBuilder.WriteToWindowsEventLog: IWindowsEventLogAppenderConfigurator;
 begin
+  SetPendingConfigurator('WriteToWindowsEventLog');
   Result := TWindowsEventLogAppenderConfigurator.Create(Self);
 end;
 
 function TLoggerProBuilder.WriteToWindowsEventLogForService(aService: TObject): IWindowsEventLogAppenderConfigurator;
 begin
   if not (aService is TService) then
     raise ELoggerPro.Create('WriteToWindowsEventLogForService requires a TService instance');
+  SetPendingConfigurator('WriteToWindowsEventLogForService');
   Result := TWindowsEventLogAppenderConfigurator.Create(Self, TService(aService));
 end;
 
 {$ENDIF}
 
 function TLoggerProBuilder.WriteToFireDAC: IFireDACAppenderConfigurator;
 begin
+  SetPendingConfigurator('WriteToFireDAC');
   Result := TFireDACAppenderConfigurator.Create(Self);
 end;
 
 function TLoggerProBuilder.WriteToFilteredAppender(aAppender: ILogAppender): IFilteredAppenderConfigurator;
 begin
+  SetPendingConfigurator('WriteToFilteredAppender');
   Result := TFilteredAppenderConfigurator.Create(Self, aAppender);
 end;
 
@@ -817,6 +851,10 @@ function TLoggerProBuilder.Build: ILogWriter;
   lLogWriter: TCustomLogWriter;
   I: Integer;
 begin
+  if not FPendingConfiguratorName.IsEmpty then
+    raise ELoggerPro.Create('Appender configurator "' + FPendingConfiguratorName +
+      '" was not finalized. Call .Done before calling .Build');
+
   if FAppenders.Count = 0 then
     raise ELoggerPro.Create('No appenders configured. Add at least one appender before calling Build.');
 
@@ -1284,6 +1322,12 @@ function TCallbackAppenderConfigurator.WithLogLevel(aLogLevel: TLogType): ICallb
   Result := Self;
 end;
 
+constructor TCallbackAppenderConfigurator.Create(aBuilder: TLoggerProBuilder);
+begin
+  inherited;
+  FSynchronizeToMainThread := False;
+end;
+
 function TCallbackAppenderConfigurator.Done: ILoggerProBuilder;
 var
   lAppender: ILogAppender;

lib/loggerpro/LoggerPro.WindowsEventLogAppender.pas

@@ -27,12 +27,10 @@
 
 unit LoggerPro.WindowsEventLogAppender;
 
-{$IFNDEF MSWINDOWS}
-{$MESSAGE FATAL 'This unit only works with Windows'}
-{$ENDIF}
-
 interface
 
+{$IF Defined(MSWINDOWS)}
+
 uses
   LoggerPro;
 
@@ -59,8 +57,12 @@   TLoggerProWindowsEventLogAppender = class(TLoggerProAppenderBase)
     procedure WriteLog(const aLogItem: TLogItem); override;
   end;
 
+{$ENDIF}
+
 implementation
 
+{$IF Defined(MSWINDOWS)}
+
 uses
   Winapi.Windows,
   System.SysUtils,
@@ -164,4 +166,6 @@ procedure TLoggerProWindowsEventLogAppender.WriteLog(const aLogItem: TLogItem);
   end;
 end;
 
+{$ENDIF}
+
 end.

lib/loggerpro/packages/d100/loggerproRT.dpk

@@ -62,6 +62,7 @@ contains
   LoggerPro.DBAppender in '..\..\LoggerPro.DBAppender.pas',
   LoggerPro.VCLListBoxAppender in '..\..\LoggerPro.VCLListBoxAppender.pas',
   LoggerPro.VCLListViewAppender in '..\..\LoggerPro.VCLListViewAppender.pas',
-  LoggerPro.VCLMemoAppender in '..\..\LoggerPro.VCLMemoAppender.pas';
+  LoggerPro.VCLMemoAppender in '..\..\LoggerPro.VCLMemoAppender.pas',
+  LoggerPro.WindowsEventLogAppender in '..\..\LoggerPro.WindowsEventLogAppender.pas';
 
 end.

lib/loggerpro/packages/d101/loggerproRT.dpk

@@ -62,6 +62,7 @@ contains
   LoggerPro.DBAppender in '..\..\LoggerPro.DBAppender.pas',
   LoggerPro.VCLListBoxAppender in '..\..\LoggerPro.VCLListBoxAppender.pas',
   LoggerPro.VCLListViewAppender in '..\..\LoggerPro.VCLListViewAppender.pas',
-  LoggerPro.VCLMemoAppender in '..\..\LoggerPro.VCLMemoAppender.pas';
+  LoggerPro.VCLMemoAppender in '..\..\LoggerPro.VCLMemoAppender.pas',
+  LoggerPro.WindowsEventLogAppender in '..\..\LoggerPro.WindowsEventLogAppender.pas';
 
 end.

lib/loggerpro/packages/d102/loggerproRT.dpk

@@ -62,6 +62,7 @@ contains
   LoggerPro.DBAppender in '..\..\LoggerPro.DBAppender.pas',
   LoggerPro.VCLListBoxAppender in '..\..\LoggerPro.VCLListBoxAppender.pas',
   LoggerPro.VCLListViewAppender in '..\..\LoggerPro.VCLListViewAppender.pas',
-  LoggerPro.VCLMemoAppender in '..\..\LoggerPro.VCLMemoAppender.pas';
+  LoggerPro.VCLMemoAppender in '..\..\LoggerPro.VCLMemoAppender.pas',
+  LoggerPro.WindowsEventLogAppender in '..\..\LoggerPro.WindowsEventLogAppender.pas';
 
 end.

lib/loggerpro/packages/d103/loggerproRT.dpk

@@ -62,6 +62,7 @@ contains
   LoggerPro.DBAppender in '..\..\LoggerPro.DBAppender.pas',
   LoggerPro.VCLListBoxAppender in '..\..\LoggerPro.VCLListBoxAppender.pas',
   LoggerPro.VCLListViewAppender in '..\..\LoggerPro.VCLListViewAppender.pas',
-  LoggerPro.VCLMemoAppender in '..\..\LoggerPro.VCLMemoAppender.pas';
+  LoggerPro.VCLMemoAppender in '..\..\LoggerPro.VCLMemoAppender.pas',
+  LoggerPro.WindowsEventLogAppender in '..\..\LoggerPro.WindowsEventLogAppender.pas';
 
 end.

lib/loggerpro/packages/d104/loggerproRT.dpk

@@ -62,6 +62,7 @@ contains
   LoggerPro.DBAppender in '..\..\LoggerPro.DBAppender.pas',
   LoggerPro.VCLListBoxAppender in '..\..\LoggerPro.VCLListBoxAppender.pas',
   LoggerPro.VCLListViewAppender in '..\..\LoggerPro.VCLListViewAppender.pas',
-  LoggerPro.VCLMemoAppender in '..\..\LoggerPro.VCLMemoAppender.pas';
+  LoggerPro.VCLMemoAppender in '..\..\LoggerPro.VCLMemoAppender.pas',
+  LoggerPro.WindowsEventLogAppender in '..\..\LoggerPro.WindowsEventLogAppender.pas';
 
 end.

lib/loggerpro/packages/d110/loggerproRT.dpk

@@ -62,6 +62,7 @@ contains
   LoggerPro.DBAppender in '..\..\LoggerPro.DBAppender.pas',
   LoggerPro.VCLListBoxAppender in '..\..\LoggerPro.VCLListBoxAppender.pas',
   LoggerPro.VCLListViewAppender in '..\..\LoggerPro.VCLListViewAppender.pas',
-  LoggerPro.VCLMemoAppender in '..\..\LoggerPro.VCLMemoAppender.pas';
+  LoggerPro.VCLMemoAppender in '..\..\LoggerPro.VCLMemoAppender.pas',
+  LoggerPro.WindowsEventLogAppender in '..\..\LoggerPro.WindowsEventLogAppender.pas';
 
 end.

lib/loggerpro/packages/d120/loggerproRT.dpk

@@ -62,6 +62,7 @@ contains
   LoggerPro.DBAppender in '..\..\LoggerPro.DBAppender.pas',
   LoggerPro.VCLListBoxAppender in '..\..\LoggerPro.VCLListBoxAppender.pas',
   LoggerPro.VCLListViewAppender in '..\..\LoggerPro.VCLListViewAppender.pas',
-  LoggerPro.VCLMemoAppender in '..\..\LoggerPro.VCLMemoAppender.pas';
+  LoggerPro.VCLMemoAppender in '..\..\LoggerPro.VCLMemoAppender.pas',
+  LoggerPro.WindowsEventLogAppender in '..\..\LoggerPro.WindowsEventLogAppender.pas';
 
 end.

lib/loggerpro/packages/d130/loggerproRT.dpk

@@ -62,7 +62,9 @@ contains
   LoggerPro.DBAppender in '..\..\LoggerPro.DBAppender.pas',
   LoggerPro.VCLListBoxAppender in '..\..\LoggerPro.VCLListBoxAppender.pas',
   LoggerPro.VCLListViewAppender in '..\..\LoggerPro.VCLListViewAppender.pas',
-  LoggerPro.VCLMemoAppender in '..\..\LoggerPro.VCLMemoAppender.pas';
+  LoggerPro.VCLMemoAppender in '..\..\LoggerPro.VCLMemoAppender.pas',
+  LoggerPro.WindowsEventLogAppender in '..\..\LoggerPro.WindowsEventLogAppender.pas';
 
 end.
 
+