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-rw-r--r--src/lib/TntUnicodeControls/TntClasses.pas3612
-rw-r--r--src/lib/TntUnicodeControls/TntFormatStrUtils.pas1042
2 files changed, 2327 insertions, 2327 deletions
diff --git a/src/lib/TntUnicodeControls/TntClasses.pas b/src/lib/TntUnicodeControls/TntClasses.pas
index f0ebd14c..164f7b45 100644
--- a/src/lib/TntUnicodeControls/TntClasses.pas
+++ b/src/lib/TntUnicodeControls/TntClasses.pas
@@ -1,1806 +1,1806 @@
-
-{*****************************************************************************}
-{ }
-{ Tnt Delphi Unicode Controls }
-{ http://www.tntware.com/delphicontrols/unicode/ }
-{ Version: 2.3.0 }
-{ }
-{ Copyright (c) 2002-2007, Troy Wolbrink (troy.wolbrink@tntware.com) }
-{ }
-{*****************************************************************************}
-
-unit TntClasses;
-
-{$IFDEF FPC}
- {$MODE Delphi}
-{$ENDIF}
-
-{$INCLUDE TntCompilers.inc}
-
-interface
-
-{ TODO: Consider: TTntRegIniFile, TTntMemIniFile (consider if UTF8 fits into this solution). }
-
-{***********************************************}
-{ WideChar-streaming implemented by Maël Hörz }
-{***********************************************}
-
-uses
- Classes, SysUtils, Windows,
- {$IFNDEF COMPILER_10_UP}
- TntWideStrings,
- {$ELSE}
- WideStrings,
- {$ENDIF}
- ActiveX, Contnrs;
-
-// ......... introduced .........
-type
- TTntStreamCharSet = (csAnsi, csUnicode, csUnicodeSwapped, csUtf8);
-
-function AutoDetectCharacterSet(Stream: TStream): TTntStreamCharSet;
-
-//---------------------------------------------------------------------------------------------
-// Tnt - Classes
-//---------------------------------------------------------------------------------------------
-
-{TNT-WARN ExtractStrings}
-{TNT-WARN LineStart}
-{TNT-WARN TStringStream} // TODO: Implement a TWideStringStream
-
-// A potential implementation of TWideStringStream can be found at:
-// http://kdsxml.cvs.sourceforge.net/kdsxml/Global/KDSClasses.pas?revision=1.10&view=markup
-
-procedure TntPersistent_AfterInherited_DefineProperties(Filer: TFiler; Instance: TPersistent);
-
-type
-{TNT-WARN TFileStream}
- TTntFileStream = class(THandleStream)
- public
- constructor Create(const FileName: WideString; Mode: Word);
- destructor Destroy; override;
- end;
-
-{TNT-WARN TMemoryStream}
- TTntMemoryStream = class(TMemoryStream{TNT-ALLOW TMemoryStream})
- public
- procedure LoadFromFile(const FileName: WideString);
- procedure SaveToFile(const FileName: WideString);
- end;
-
-{TNT-WARN TResourceStream}
- TTntResourceStream = class(TCustomMemoryStream)
- private
- HResInfo: HRSRC;
- HGlobal: THandle;
- procedure Initialize(Instance: THandle; Name, ResType: PWideChar);
- public
- constructor Create(Instance: THandle; const ResName: WideString; ResType: PWideChar);
- constructor CreateFromID(Instance: THandle; ResID: Word; ResType: PWideChar);
- destructor Destroy; override;
- function Write(const Buffer; Count: Longint): Longint; override;
- procedure SaveToFile(const FileName: WideString);
- end;
-
- TTntStrings = class;
-
-{TNT-WARN TAnsiStrings}
- TAnsiStrings{TNT-ALLOW TAnsiStrings} = class(TStrings{TNT-ALLOW TStrings})
- public
- procedure LoadFromFile(const FileName: WideString); reintroduce;
- procedure SaveToFile(const FileName: WideString); reintroduce;
- procedure LoadFromFileEx(const FileName: WideString; CodePage: Cardinal);
- procedure SaveToFileEx(const FileName: WideString; CodePage: Cardinal);
- procedure LoadFromStreamEx(Stream: TStream; CodePage: Cardinal); virtual; abstract;
- procedure SaveToStreamEx(Stream: TStream; CodePage: Cardinal); virtual; abstract;
- end;
-
- TAnsiStringsForWideStringsAdapter = class(TAnsiStrings{TNT-ALLOW TAnsiStrings})
- private
- FWideStrings: TTntStrings;
- FAdapterCodePage: Cardinal;
- protected
- function Get(Index: Integer): AnsiString; override;
- procedure Put(Index: Integer; const S: AnsiString); override;
- function GetCount: Integer; override;
- function GetObject(Index: Integer): TObject; override;
- procedure PutObject(Index: Integer; AObject: TObject); override;
- procedure SetUpdateState(Updating: Boolean); override;
- function AdapterCodePage: Cardinal; dynamic;
- public
- constructor Create(AWideStrings: TTntStrings; _AdapterCodePage: Cardinal = 0);
- procedure Clear; override;
- procedure Delete(Index: Integer); override;
- procedure Insert(Index: Integer; const S: AnsiString); override;
- procedure LoadFromStreamEx(Stream: TStream; CodePage: Cardinal); override;
- procedure SaveToStreamEx(Stream: TStream; CodePage: Cardinal); override;
- end;
-
-{TNT-WARN TStrings}
- TTntStrings = class(TWideStrings)
- private
- FLastFileCharSet: TTntStreamCharSet;
- FAnsiStrings: TAnsiStrings{TNT-ALLOW TAnsiStrings};
- procedure SetAnsiStrings(const Value: TAnsiStrings{TNT-ALLOW TAnsiStrings});
- procedure ReadData(Reader: TReader);
- procedure ReadDataUTF7(Reader: TReader);
- procedure ReadDataUTF8(Reader: TReader);
- procedure WriteDataUTF7(Writer: TWriter);
- protected
- procedure DefineProperties(Filer: TFiler); override;
- public
- constructor Create;
- destructor Destroy; override;
-
- procedure LoadFromFile(const FileName: WideString); override;
- procedure LoadFromStream(Stream: TStream); override;
- procedure LoadFromStream_BOM(Stream: TStream; WithBOM: Boolean); virtual;
-
- procedure SaveToFile(const FileName: WideString); override;
- procedure SaveToStream(Stream: TStream); override;
- procedure SaveToStream_BOM(Stream: TStream; WithBOM: Boolean); virtual;
-
- property LastFileCharSet: TTntStreamCharSet read FLastFileCharSet;
- published
- property AnsiStrings: TAnsiStrings{TNT-ALLOW TAnsiStrings} read FAnsiStrings write SetAnsiStrings stored False;
- end;
-
-{ TTntStringList class }
-
- TTntStringList = class;
- TWideStringListSortCompare = function(List: TTntStringList; Index1, Index2: Integer): Integer;
-
-{TNT-WARN TStringList}
- TTntStringList = class(TTntStrings)
- private
- FUpdating: Boolean;
- FList: PWideStringItemList;
- FCount: Integer;
- FCapacity: Integer;
- FSorted: Boolean;
- FDuplicates: TDuplicates;
- FCaseSensitive: Boolean;
- FOnChange: TNotifyEvent;
- FOnChanging: TNotifyEvent;
- procedure ExchangeItems(Index1, Index2: Integer);
- procedure Grow;
- procedure QuickSort(L, R: Integer; SCompare: TWideStringListSortCompare);
- procedure SetSorted(Value: Boolean);
- procedure SetCaseSensitive(const Value: Boolean);
- protected
- procedure Changed; virtual;
- procedure Changing; virtual;
- function Get(Index: Integer): WideString; override;
- function GetCapacity: Integer; override;
- function GetCount: Integer; override;
- function GetObject(Index: Integer): TObject; override;
- procedure Put(Index: Integer; const S: WideString); override;
- procedure PutObject(Index: Integer; AObject: TObject); override;
- procedure SetCapacity(NewCapacity: Integer); override;
- procedure SetUpdateState(Updating: Boolean); override;
- function CompareStrings(const S1, S2: WideString): Integer; override;
- procedure InsertItem(Index: Integer; const S: WideString; AObject: TObject); virtual;
- public
- destructor Destroy; override;
- function Add(const S: WideString): Integer; override;
- function AddObject(const S: WideString; AObject: TObject): Integer; override;
- procedure Clear; override;
- procedure Delete(Index: Integer); override;
- procedure Exchange(Index1, Index2: Integer); override;
- function Find(const S: WideString; var Index: Integer): Boolean; virtual;
- function IndexOf(const S: WideString): Integer; override;
- function IndexOfName(const Name: WideString): Integer; override;
- procedure Insert(Index: Integer; const S: WideString); override;
- procedure InsertObject(Index: Integer; const S: WideString;
- AObject: TObject); override;
- procedure Sort; virtual;
- procedure CustomSort(Compare: TWideStringListSortCompare); virtual;
- property Duplicates: TDuplicates read FDuplicates write FDuplicates;
- property Sorted: Boolean read FSorted write SetSorted;
- property CaseSensitive: Boolean read FCaseSensitive write SetCaseSensitive;
- property OnChange: TNotifyEvent read FOnChange write FOnChange;
- property OnChanging: TNotifyEvent read FOnChanging write FOnChanging;
- end;
-
-// ......... introduced .........
-type
- TListTargetCompare = function (Item, Target: Pointer): Integer;
-
-function FindSortedListByTarget(List: TList; TargetCompare: TListTargetCompare;
- Target: Pointer; var Index: Integer): Boolean;
-
-function ClassIsRegistered(const clsid: TCLSID): Boolean;
-
-var
- RuntimeUTFStreaming: Boolean;
-
-type
- TBufferedAnsiString = class(TObject)
- private
- FStringBuffer: AnsiString;
- LastWriteIndex: Integer;
- public
- procedure Clear;
- procedure AddChar(const wc: AnsiChar);
- procedure AddString(const s: AnsiString);
- procedure AddBuffer(Buff: PAnsiChar; Chars: Integer);
- function Value: AnsiString;
- function BuffPtr: PAnsiChar;
- end;
-
- TBufferedWideString = class(TObject)
- private
- FStringBuffer: WideString;
- LastWriteIndex: Integer;
- public
- procedure Clear;
- procedure AddChar(const wc: WideChar);
- procedure AddString(const s: WideString);
- procedure AddBuffer(Buff: PWideChar; Chars: Integer);
- function Value: WideString;
- function BuffPtr: PWideChar;
- end;
-
- TBufferedStreamReader = class(TStream)
- private
- FStream: TStream;
- FStreamSize: Integer;
- FBuffer: array of Byte;
- FBufferSize: Integer;
- FBufferStartPosition: Integer;
- FVirtualPosition: Integer;
- procedure UpdateBufferFromPosition(StartPos: Integer);
- public
- constructor Create(Stream: TStream; BufferSize: Integer = 1024);
- function Read(var Buffer; Count: Longint): Longint; override;
- function Write(const Buffer; Count: Longint): Longint; override;
- function Seek(Offset: Longint; Origin: Word): Longint; override;
- end;
-
-// "synced" wide string
-type TSetAnsiStrEvent = procedure(const Value: AnsiString) of object;
-function GetSyncedWideString(var WideStr: WideString; const AnsiStr: AnsiString): WideString;
-procedure SetSyncedWideString(const Value: WideString; var WideStr: WideString;
- const AnsiStr: AnsiString; SetAnsiStr: TSetAnsiStrEvent);
-
-type
- TWideComponentHelper = class(TComponent)
- private
- FComponent: TComponent;
- protected
- procedure Notification(AComponent: TComponent; Operation: TOperation); override;
- public
- constructor Create(AOwner: TComponent); override;
- constructor CreateHelper(AOwner: TComponent; ComponentHelperList: TComponentList);
- end;
-
-function FindWideComponentHelper(ComponentHelperList: TComponentList; Component: TComponent): TWideComponentHelper;
-
-implementation
-
-uses
- RTLConsts, ComObj, Math,
- Registry, TypInfo, TntSystem, TntSysUtils;
-
-{ TntPersistent }
-
-//===========================================================================
-// The Delphi 5 Classes.pas never supported the streaming of WideStrings.
-// The Delphi 6 Classes.pas supports WideString streaming. But it's too bad that
-// the Delphi 6 IDE doesn't use the updated Classes.pas. Switching between Form/Text
-// mode corrupts extended characters in WideStrings even under Delphi 6.
-// Delphi 7 seems to finally get right. But let's keep the UTF7 support at design time
-// to enable sharing source code with previous versions of Delphi.
-//
-// The purpose of this solution is to store WideString properties which contain
-// non-ASCII chars in the form of UTF7 under the old property name + '_UTF7'.
-//
-// Special thanks go to Francisco Leong for helping to develop this solution.
-//
-
-{ TTntWideStringPropertyFiler }
-type
- TTntWideStringPropertyFiler = class
- private
- FInstance: TPersistent;
- FPropInfo: PPropInfo;
- procedure ReadDataUTF8(Reader: TReader);
- procedure ReadDataUTF7(Reader: TReader);
- procedure WriteDataUTF7(Writer: TWriter);
- public
- procedure DefineProperties(Filer: TFiler; Instance: TPersistent; PropName: AnsiString);
- end;
-
-function ReaderNeedsUtfHelp(Reader: TReader): Boolean;
-begin
- if Reader.Owner = nil then
- Result := False { designtime - visual form inheritance ancestor }
- else if csDesigning in Reader.Owner.ComponentState then
- {$IFDEF COMPILER_7_UP}
- Result := False { Delphi 7+: designtime - doesn't need UTF help. }
- {$ELSE}
- Result := True { Delphi 6: designtime - always needs UTF help. }
- {$ENDIF}
- else
- Result := RuntimeUTFStreaming; { runtime }
-end;
-
-procedure TTntWideStringPropertyFiler.ReadDataUTF8(Reader: TReader);
-begin
- if ReaderNeedsUtfHelp(Reader) then
- SetWideStrProp(FInstance, FPropInfo, UTF8ToWideString(Reader.ReadString))
- else
- Reader.ReadString; { do nothing with Result }
-end;
-
-procedure TTntWideStringPropertyFiler.ReadDataUTF7(Reader: TReader);
-begin
- if ReaderNeedsUtfHelp(Reader) then
- SetWideStrProp(FInstance, FPropInfo, UTF7ToWideString(Reader.ReadString))
- else
- Reader.ReadString; { do nothing with Result }
-end;
-
-procedure TTntWideStringPropertyFiler.WriteDataUTF7(Writer: TWriter);
-begin
- Writer.WriteString(WideStringToUTF7(GetWideStrProp(FInstance, FPropInfo)));
-end;
-
-procedure TTntWideStringPropertyFiler.DefineProperties(Filer: TFiler; Instance: TPersistent;
- PropName: AnsiString);
-
- {$IFNDEF COMPILER_7_UP}
- function HasData: Boolean;
- var
- CurrPropValue: WideString;
- begin
- // must be stored
- Result := IsStoredProp(Instance, FPropInfo);
- if Result
- and (Filer.Ancestor <> nil)
- and (GetPropInfo(Filer.Ancestor, PropName, [tkWString]) <> nil) then
- begin
- // must be different than ancestor
- CurrPropValue := GetWideStrProp(Instance, FPropInfo);
- Result := CurrPropValue <> GetWideStrProp(Filer.Ancestor, GetPropInfo(Filer.Ancestor, PropName));
- end;
- if Result then begin
- // must be non-blank and different than UTF8 (implies all ASCII <= 127)
- CurrPropValue := GetWideStrProp(Instance, FPropInfo);
- Result := (CurrPropValue <> '') and (WideStringToUTF8(CurrPropValue) <> CurrPropValue);
- end;
- end;
- {$ENDIF}
-
-begin
- FInstance := Instance;
- FPropInfo := GetPropInfo(Instance, PropName, [tkWString]);
- if FPropInfo <> nil then begin
- // must be published (and of type WideString)
- Filer.DefineProperty(PropName + 'W', ReadDataUTF8, nil, False);
- {$IFDEF COMPILER_7_UP}
- Filer.DefineProperty(PropName + '_UTF7', ReadDataUTF7, WriteDataUTF7, False);
- {$ELSE}
- Filer.DefineProperty(PropName + '_UTF7', ReadDataUTF7, WriteDataUTF7, HasData);
- {$ENDIF}
- end;
- FInstance := nil;
- FPropInfo := nil;
-end;
-
-{ TTntWideCharPropertyFiler }
-type
- TTntWideCharPropertyFiler = class
- private
- FInstance: TPersistent;
- FPropInfo: PPropInfo;
- {$IFNDEF COMPILER_9_UP}
- FWriter: TWriter;
- procedure GetLookupInfo(var Ancestor: TPersistent;
- var Root, LookupRoot, RootAncestor: TComponent);
- {$ENDIF}
- procedure ReadData_W(Reader: TReader);
- procedure ReadDataUTF7(Reader: TReader);
- procedure WriteData_W(Writer: TWriter);
- function ReadChar(Reader: TReader): WideChar;
- public
- procedure DefineProperties(Filer: TFiler; Instance: TPersistent; PropName: AnsiString);
- end;
-
-{$IFNDEF COMPILER_9_UP}
-type
- TGetLookupInfoEvent = procedure(var Ancestor: TPersistent;
- var Root, LookupRoot, RootAncestor: TComponent) of object;
-
-function AncestorIsValid(Ancestor: TPersistent; Root, RootAncestor: TComponent): Boolean;
-begin
- Result := (Ancestor <> nil) and (RootAncestor <> nil) and
- Root.InheritsFrom(RootAncestor.ClassType);
-end;
-
-function IsDefaultOrdPropertyValue(Instance: TObject; PropInfo: PPropInfo;
- OnGetLookupInfo: TGetLookupInfoEvent): Boolean;
-var
- Ancestor: TPersistent;
- LookupRoot: TComponent;
- RootAncestor: TComponent;
- Root: TComponent;
- AncestorValid: Boolean;
- Value: Longint;
- Default: LongInt;
-begin
- Ancestor := nil;
- Root := nil;
- LookupRoot := nil;
- RootAncestor := nil;
-
- if Assigned(OnGetLookupInfo) then
- OnGetLookupInfo(Ancestor, Root, LookupRoot, RootAncestor);
-
- AncestorValid := AncestorIsValid(Ancestor, Root, RootAncestor);
-
- Result := True;
- if (PropInfo^.GetProc <> nil) and (PropInfo^.SetProc <> nil) then
- begin
- Value := GetOrdProp(Instance, PropInfo);
- if AncestorValid then
- Result := Value = GetOrdProp(Ancestor, PropInfo)
- else
- begin
- Default := PPropInfo(PropInfo)^.Default;
- Result := (Default <> LongInt($80000000)) and (Value = Default);
- end;
- end;
-end;
-
-procedure TTntWideCharPropertyFiler.GetLookupInfo(var Ancestor: TPersistent;
- var Root, LookupRoot, RootAncestor: TComponent);
-begin
- Ancestor := FWriter.Ancestor;
- Root := FWriter.Root;
- LookupRoot := FWriter.LookupRoot;
- RootAncestor := FWriter.RootAncestor;
-end;
-{$ENDIF}
-
-function TTntWideCharPropertyFiler.ReadChar(Reader: TReader): WideChar;
-var
- Temp: WideString;
-begin
- case Reader.NextValue of
- vaWString:
- Temp := Reader.ReadWideString;
- vaString:
- Temp := Reader.ReadString;
- else
- raise EReadError.Create(SInvalidPropertyValue);
- end;
-
- if Length(Temp) > 1 then
- raise EReadError.Create(SInvalidPropertyValue);
- Result := Temp[1];
-end;
-
-procedure TTntWideCharPropertyFiler.ReadData_W(Reader: TReader);
-begin
- SetOrdProp(FInstance, FPropInfo, Ord(ReadChar(Reader)));
-end;
-
-procedure TTntWideCharPropertyFiler.ReadDataUTF7(Reader: TReader);
-var
- S: WideString;
-begin
- S := UTF7ToWideString(Reader.ReadString);
- if S = '' then
- SetOrdProp(FInstance, FPropInfo, 0)
- else
- SetOrdProp(FInstance, FPropInfo, Ord(S[1]))
-end;
-
-type TAccessWriter = class(TWriter);
-
-procedure TTntWideCharPropertyFiler.WriteData_W(Writer: TWriter);
-var
- L: Integer;
- Temp: WideString;
-{$IFDEF FPC}
-// Workaround: the Buffer parameter of TWriter.Write() must be of a fixed size
-// type for FPC >= 2.4.0. The values vaWString, Ord(vaWString) or Integer(vaWString)
-// are not allowed anymore.
-const
- vaWStringInt: integer = Ord(vaWString);
-{$ENDIF}
-begin
- Temp := WideChar(GetOrdProp(FInstance, FPropInfo));
-
- {$IFNDEF FPC}
- TAccessWriter(Writer).WriteValue(vaWString);
- {$ELSE}
- TAccessWriter(Writer).Write(vaWStringInt, SizeOf(vaWString));
- {$ENDIF}
- L := Length(Temp);
- Writer.Write(L, SizeOf(Integer));
- Writer.Write(Pointer(@Temp[1])^, L * 2);
-end;
-
-procedure TTntWideCharPropertyFiler.DefineProperties(Filer: TFiler;
- Instance: TPersistent; PropName: AnsiString);
-
- {$IFNDEF COMPILER_9_UP}
- function HasData: Boolean;
- var
- CurrPropValue: Integer;
- begin
- // must be stored
- Result := IsStoredProp(Instance, FPropInfo);
- if Result and (Filer.Ancestor <> nil) and
- (GetPropInfo(Filer.Ancestor, PropName, [tkWChar]) <> nil) then
- begin
- // must be different than ancestor
- CurrPropValue := GetOrdProp(Instance, FPropInfo);
- Result := CurrPropValue <> GetOrdProp(Filer.Ancestor, GetPropInfo(Filer.Ancestor, PropName));
- end;
- if Result and (Filer is TWriter) then
- begin
- FWriter := TWriter(Filer);
- Result := not IsDefaultOrdPropertyValue(Instance, FPropInfo, GetLookupInfo);
- end;
- end;
- {$ENDIF}
-
-begin
- FInstance := Instance;
- FPropInfo := GetPropInfo(Instance, PropName, [tkWChar]);
- if FPropInfo <> nil then
- begin
- // must be published (and of type WideChar)
- {$IFDEF COMPILER_9_UP}
- Filer.DefineProperty(PropName + 'W', ReadData_W, WriteData_W, False);
- {$ELSE}
- Filer.DefineProperty(PropName + 'W', ReadData_W, WriteData_W, HasData);
- {$ENDIF}
- Filer.DefineProperty(PropName + '_UTF7', ReadDataUTF7, nil, False);
- end;
- FInstance := nil;
- FPropInfo := nil;
-end;
-
-procedure TntPersistent_AfterInherited_DefineProperties(Filer: TFiler; Instance: TPersistent);
-var
- I, Count: Integer;
- PropInfo: PPropInfo;
- PropList: PPropList;
- WideStringFiler: TTntWideStringPropertyFiler;
- WideCharFiler: TTntWideCharPropertyFiler;
-begin
- Count := GetTypeData(Instance.ClassInfo)^.PropCount;
- if Count > 0 then
- begin
- WideStringFiler := TTntWideStringPropertyFiler.Create;
- try
- WideCharFiler := TTntWideCharPropertyFiler.Create;
- try
- GetMem(PropList, Count * SizeOf(Pointer));
- try
- GetPropInfos(Instance.ClassInfo, PropList);
- for I := 0 to Count - 1 do
- begin
- PropInfo := PropList^[I];
- if (PropInfo = nil) then
- break;
- if (PropInfo.PropType^.Kind = tkWString) then
- WideStringFiler.DefineProperties(Filer, Instance, PropInfo.Name)
- else if (PropInfo.PropType^.Kind = tkWChar) then
- WideCharFiler.DefineProperties(Filer, Instance, PropInfo.Name)
- end;
- finally
- FreeMem(PropList, Count * SizeOf(Pointer));
- end;
- finally
- WideCharFiler.Free;
- end;
- finally
- WideStringFiler.Free;
- end;
- end;
-end;
-
-{ TTntFileStream }
-
-{$IFDEF FPC}
- {$DEFINE HAS_SFCREATEERROREX}
-{$ENDIF}
-{$IFDEF DELPHI_7_UP}
- {$DEFINE HAS_SFCREATEERROREX}
-{$ENDIF}
-
-constructor TTntFileStream.Create(const FileName: WideString; Mode: Word);
-var
- CreateHandle: Integer;
- {$IFDEF HAS_SFCREATEERROREX}
- ErrorMessage: WideString;
- {$ENDIF}
-begin
- if Mode = fmCreate then
- begin
- CreateHandle := WideFileCreate(FileName);
- if CreateHandle < 0 then begin
- {$IFDEF HAS_SFCREATEERROREX}
- ErrorMessage := WideSysErrorMessage(GetLastError);
- raise EFCreateError.CreateFmt(SFCreateErrorEx, [WideExpandFileName(FileName), ErrorMessage]);
- {$ELSE}
- raise EFCreateError.CreateFmt(SFCreateError, [WideExpandFileName(FileName)]);
- {$ENDIF}
- end;
- end else
- begin
- CreateHandle := WideFileOpen(FileName, Mode);
- if CreateHandle < 0 then begin
- {$IFDEF HAS_SFCREATEERROREX}
- ErrorMessage := WideSysErrorMessage(GetLastError);
- raise EFOpenError.CreateFmt(SFOpenErrorEx, [WideExpandFileName(FileName), ErrorMessage]);
- {$ELSE}
- raise EFOpenError.CreateFmt(SFOpenError, [WideExpandFileName(FileName)]);
- {$ENDIF}
- end;
- end;
- inherited Create(CreateHandle);
-end;
-
-destructor TTntFileStream.Destroy;
-begin
- if Handle >= 0 then FileClose(Handle);
-end;
-
-{ TTntMemoryStream }
-
-procedure TTntMemoryStream.LoadFromFile(const FileName: WideString);
-var
- Stream: TStream;
-begin
- Stream := TTntFileStream.Create(FileName, fmOpenRead or fmShareDenyWrite);
- try
- LoadFromStream(Stream);
- finally
- Stream.Free;
- end;
-end;
-
-procedure TTntMemoryStream.SaveToFile(const FileName: WideString);
-var
- Stream: TStream;
-begin
- Stream := TTntFileStream.Create(FileName, fmCreate);
- try
- SaveToStream(Stream);
- finally
- Stream.Free;
- end;
-end;
-
-{ TTntResourceStream }
-
-constructor TTntResourceStream.Create(Instance: THandle; const ResName: WideString;
- ResType: PWideChar);
-begin
- inherited Create;
- Initialize(Instance, PWideChar(ResName), ResType);
-end;
-
-constructor TTntResourceStream.CreateFromID(Instance: THandle; ResID: Word;
- ResType: PWideChar);
-begin
- inherited Create;
- Initialize(Instance, PWideChar(ResID), ResType);
-end;
-
-procedure TTntResourceStream.Initialize(Instance: THandle; Name, ResType: PWideChar);
-
- procedure Error;
- begin
- raise EResNotFound.CreateFmt(SResNotFound, [Name]);
- end;
-
-begin
- HResInfo := FindResourceW(Instance, Name, ResType);
- if HResInfo = 0 then Error;
- HGlobal := LoadResource(Instance, HResInfo);
- if HGlobal = 0 then Error;
- SetPointer(LockResource(HGlobal), SizeOfResource(Instance, HResInfo));
-end;
-
-destructor TTntResourceStream.Destroy;
-begin
- UnlockResource(HGlobal);
- FreeResource(HGlobal); { Technically this is not necessary (MS KB #193678) }
- inherited Destroy;
-end;
-
-function TTntResourceStream.Write(const Buffer; Count: Longint): Longint;
-begin
- raise EStreamError.CreateRes(PResStringRec(@SCantWriteResourceStreamError));
-end;
-
-procedure TTntResourceStream.SaveToFile(const FileName: WideString);
-var
- Stream: TStream;
-begin
- Stream := TTntFileStream.Create(FileName, fmCreate);
- try
- SaveToStream(Stream);
- finally
- Stream.Free;
- end;
-end;
-
-{ TAnsiStrings }
-
-procedure TAnsiStrings{TNT-ALLOW TAnsiStrings}.LoadFromFile(const FileName: WideString);
-var
- Stream: TStream;
-begin
- Stream := TTntFileStream.Create(FileName, fmOpenRead or fmShareDenyWrite);
- try
- LoadFromStream(Stream);
- finally
- Stream.Free;
- end;
-end;
-
-procedure TAnsiStrings{TNT-ALLOW TAnsiStrings}.SaveToFile(const FileName: WideString);
-var
- Stream: TStream;
-begin
- Stream := TTntFileStream.Create(FileName, fmCreate);
- try
- SaveToStream(Stream);
- finally
- Stream.Free;
- end;
-end;
-
-procedure TAnsiStrings{TNT-ALLOW TAnsiStrings}.LoadFromFileEx(const FileName: WideString; CodePage: Cardinal);
-var
- Stream: TStream;
-begin
- Stream := TTntFileStream.Create(FileName, fmOpenRead or fmShareDenyWrite);
- try
- LoadFromStreamEx(Stream, CodePage);
- finally
- Stream.Free;
- end;
-end;
-
-procedure TAnsiStrings{TNT-ALLOW TAnsiStrings}.SaveToFileEx(const FileName: WideString; CodePage: Cardinal);
-var
- Stream: TStream;
- Utf8BomPtr: PAnsiChar;
-begin
- Stream := TTntFileStream.Create(FileName, fmCreate);
- try
- if (CodePage = CP_UTF8) then
- begin
- Utf8BomPtr := PAnsiChar(UTF8_BOM);
- Stream.WriteBuffer(Utf8BomPtr^, Length(UTF8_BOM));
- end;
- SaveToStreamEx(Stream, CodePage);
- finally
- Stream.Free;
- end;
-end;
-
-{ TAnsiStringsForWideStringsAdapter }
-
-constructor TAnsiStringsForWideStringsAdapter.Create(AWideStrings: TTntStrings; _AdapterCodePage: Cardinal);
-begin
- inherited Create;
- FWideStrings := AWideStrings;
- FAdapterCodePage := _AdapterCodePage;
-end;
-
-function TAnsiStringsForWideStringsAdapter.AdapterCodePage: Cardinal;
-begin
- if FAdapterCodePage = 0 then
- Result := TntSystem.DefaultSystemCodePage
- else
- Result := FAdapterCodePage;
-end;
-
-procedure TAnsiStringsForWideStringsAdapter.Clear;
-begin
- FWideStrings.Clear;
-end;
-
-procedure TAnsiStringsForWideStringsAdapter.Delete(Index: Integer);
-begin
- FWideStrings.Delete(Index);
-end;
-
-function TAnsiStringsForWideStringsAdapter.Get(Index: Integer): AnsiString;
-begin
- Result := WideStringToStringEx(FWideStrings.Get(Index), AdapterCodePage);
-end;
-
-procedure TAnsiStringsForWideStringsAdapter.Put(Index: Integer; const S: AnsiString);
-begin
- FWideStrings.Put(Index, StringToWideStringEx(S, AdapterCodePage));
-end;
-
-function TAnsiStringsForWideStringsAdapter.GetCount: Integer;
-begin
- Result := FWideStrings.GetCount;
-end;
-
-procedure TAnsiStringsForWideStringsAdapter.Insert(Index: Integer; const S: AnsiString);
-begin
- FWideStrings.Insert(Index, StringToWideStringEx(S, AdapterCodePage));
-end;
-
-function TAnsiStringsForWideStringsAdapter.GetObject(Index: Integer): TObject;
-begin
- Result := FWideStrings.GetObject(Index);
-end;
-
-procedure TAnsiStringsForWideStringsAdapter.PutObject(Index: Integer; AObject: TObject);
-begin
- FWideStrings.PutObject(Index, AObject);
-end;
-
-procedure TAnsiStringsForWideStringsAdapter.SetUpdateState(Updating: Boolean);
-begin
- FWideStrings.SetUpdateState(Updating);
-end;
-
-procedure TAnsiStringsForWideStringsAdapter.LoadFromStreamEx(Stream: TStream; CodePage: Cardinal);
-var
- Size: Integer;
- S: AnsiString;
-begin
- BeginUpdate;
- try
- Size := Stream.Size - Stream.Position;
- SetString(S, nil, Size);
- Stream.Read(Pointer(S)^, Size);
- FWideStrings.SetTextStr(StringToWideStringEx(S, CodePage));
- finally
- EndUpdate;
- end;
-end;
-
-procedure TAnsiStringsForWideStringsAdapter.SaveToStreamEx(Stream: TStream; CodePage: Cardinal);
-var
- S: AnsiString;
-begin
- S := WideStringToStringEx(FWideStrings.GetTextStr, CodePage);
- Stream.WriteBuffer(Pointer(S)^, Length(S));
-end;
-
-{ TTntStrings }
-
-constructor TTntStrings.Create;
-begin
- inherited;
- FAnsiStrings := TAnsiStringsForWideStringsAdapter.Create(Self);
- FLastFileCharSet := csUnicode;
-end;
-
-destructor TTntStrings.Destroy;
-begin
- FreeAndNil(FAnsiStrings);
- inherited;
-end;
-
-procedure TTntStrings.SetAnsiStrings(const Value: TAnsiStrings{TNT-ALLOW TAnsiStrings});
-begin
- FAnsiStrings.Assign(Value);
-end;
-
-procedure TTntStrings.DefineProperties(Filer: TFiler);
-
- {$IFNDEF COMPILER_7_UP}
- function DoWrite: Boolean;
- begin
- if Filer.Ancestor <> nil then
- begin
- Result := True;
- if Filer.Ancestor is TWideStrings then
- Result := not Equals(TWideStrings(Filer.Ancestor))
- end
- else Result := Count > 0;
- end;
-
- function DoWriteAsUTF7: Boolean;
- var
- i: integer;
- begin
- Result := False;
- for i := 0 to Count - 1 do begin
- if (Strings[i] <> '') and (WideStringToUTF8(Strings[i]) <> Strings[i]) then begin
- Result := True;
- break; { found a string with non-ASCII chars (> 127) }
- end;
- end;
- end;
- {$ENDIF}
-
-begin
- inherited DefineProperties(Filer); { Handles main 'Strings' property.' }
- Filer.DefineProperty('WideStrings', ReadData, nil, False);
- Filer.DefineProperty('WideStringsW', ReadDataUTF8, nil, False);
- {$IFDEF COMPILER_7_UP}
- Filer.DefineProperty('WideStrings_UTF7', ReadDataUTF7, WriteDataUTF7, False);
- {$ELSE}
- Filer.DefineProperty('WideStrings_UTF7', ReadDataUTF7, WriteDataUTF7, DoWrite and DoWriteAsUTF7);
- {$ENDIF}
-end;
-
-procedure TTntStrings.LoadFromFile(const FileName: WideString);
-var
- Stream: TStream;
-begin
- Stream := TTntFileStream.Create(FileName, fmOpenRead or fmShareDenyWrite);
- try
- FLastFileCharSet := AutoDetectCharacterSet(Stream);
- Stream.Position := 0;
- LoadFromStream(Stream);
- finally
- Stream.Free;
- end;
-end;
-
-procedure TTntStrings.LoadFromStream(Stream: TStream);
-begin
- LoadFromStream_BOM(Stream, True);
-end;
-
-procedure TTntStrings.LoadFromStream_BOM(Stream: TStream; WithBOM: Boolean);
-var
- DataLeft: Integer;
- StreamCharSet: TTntStreamCharSet;
- SW: WideString;
- SA: AnsiString;
-begin
- BeginUpdate;
- try
- if WithBOM then
- StreamCharSet := AutoDetectCharacterSet(Stream)
- else
- StreamCharSet := csUnicode;
- DataLeft := Stream.Size - Stream.Position;
- if (StreamCharSet in [csUnicode, csUnicodeSwapped]) then
- begin
- // BOM indicates Unicode text stream
- if DataLeft < SizeOf(WideChar) then
- SW := ''
- else begin
- SetLength(SW, DataLeft div SizeOf(WideChar));
- Stream.Read(PWideChar(SW)^, DataLeft);
- if StreamCharSet = csUnicodeSwapped then
- StrSwapByteOrder(PWideChar(SW));
- end;
- SetTextStr(SW);
- end
- else if StreamCharSet = csUtf8 then
- begin
- // BOM indicates UTF-8 text stream
- SetLength(SA, DataLeft div SizeOf(AnsiChar));
- Stream.Read(PAnsiChar(SA)^, DataLeft);
- SetTextStr(UTF8ToWideString(SA));
- end
- else
- begin
- // without byte order mark it is assumed that we are loading ANSI text
- SetLength(SA, DataLeft div SizeOf(AnsiChar));
- Stream.Read(PAnsiChar(SA)^, DataLeft);
- SetTextStr(SA);
- end;
- finally
- EndUpdate;
- end;
-end;
-
-procedure TTntStrings.ReadData(Reader: TReader);
-begin
- if Reader.NextValue in [vaString, vaLString] then
- SetTextStr(Reader.ReadString) {JCL compatiblity}
- else if Reader.NextValue = vaWString then
- SetTextStr(Reader.ReadWideString) {JCL compatiblity}
- else begin
- BeginUpdate;
- try
- Clear;
- Reader.ReadListBegin;
- while not Reader.EndOfList do
- if Reader.NextValue in [vaString, vaLString] then
- Add(Reader.ReadString) {TStrings compatiblity}
- else
- Add(Reader.ReadWideString);
- Reader.ReadListEnd;
- finally
- EndUpdate;
- end;
- end;
-end;
-
-procedure TTntStrings.ReadDataUTF7(Reader: TReader);
-begin
- Reader.ReadListBegin;
- if ReaderNeedsUtfHelp(Reader) then
- begin
- BeginUpdate;
- try
- Clear;
- while not Reader.EndOfList do
- Add(UTF7ToWideString(Reader.ReadString))
- finally
- EndUpdate;
- end;
- end else begin
- while not Reader.EndOfList do
- Reader.ReadString; { do nothing with Result }
- end;
- Reader.ReadListEnd;
-end;
-
-procedure TTntStrings.ReadDataUTF8(Reader: TReader);
-begin
- Reader.ReadListBegin;
- if ReaderNeedsUtfHelp(Reader)
- or (Count = 0){ Legacy support where 'WideStrings' was never written in lieu of WideStringsW }
- then begin
- BeginUpdate;
- try
- Clear;
- while not Reader.EndOfList do
- Add(UTF8ToWideString(Reader.ReadString))
- finally
- EndUpdate;
- end;
- end else begin
- while not Reader.EndOfList do
- Reader.ReadString; { do nothing with Result }
- end;
- Reader.ReadListEnd;
-end;
-
-procedure TTntStrings.SaveToFile(const FileName: WideString);
-var
- Stream: TStream;
-begin
- Stream := TTntFileStream.Create(FileName, fmCreate);
- try
- SaveToStream(Stream);
- finally
- Stream.Free;
- end;
-end;
-
-procedure TTntStrings.SaveToStream(Stream: TStream);
-begin
- SaveToStream_BOM(Stream, True);
-end;
-
-procedure TTntStrings.SaveToStream_BOM(Stream: TStream; WithBOM: Boolean);
-// Saves the currently loaded text into the given stream.
-// WithBOM determines whether to write a byte order mark or not.
-var
- SW: WideString;
- BOM: WideChar;
-begin
- if WithBOM then begin
- BOM := UNICODE_BOM;
- Stream.WriteBuffer(BOM, SizeOf(WideChar));
- end;
- SW := GetTextStr;
- Stream.WriteBuffer(PWideChar(SW)^, Length(SW) * SizeOf(WideChar));
-end;
-
-procedure TTntStrings.WriteDataUTF7(Writer: TWriter);
-var
- I: Integer;
-begin
- Writer.WriteListBegin;
- for I := 0 to Count-1 do
- Writer.WriteString(WideStringToUTF7(Get(I)));
- Writer.WriteListEnd;
-end;
-
-{ TTntStringList }
-
-destructor TTntStringList.Destroy;
-begin
- FOnChange := nil;
- FOnChanging := nil;
- inherited Destroy;
- if FCount <> 0 then Finalize(FList^[0], FCount);
- FCount := 0;
- SetCapacity(0);
-end;
-
-function TTntStringList.Add(const S: WideString): Integer;
-begin
- Result := AddObject(S, nil);
-end;
-
-function TTntStringList.AddObject(const S: WideString; AObject: TObject): Integer;
-begin
- if not Sorted then
- Result := FCount
- else
- if Find(S, Result) then
- case Duplicates of
- dupIgnore: Exit;
- dupError: Error(PResStringRec(@SDuplicateString), 0);
- end;
- InsertItem(Result, S, AObject);
-end;
-
-procedure TTntStringList.Changed;
-begin
- if (not FUpdating) and Assigned(FOnChange) then
- FOnChange(Self);
-end;
-
-procedure TTntStringList.Changing;
-begin
- if (not FUpdating) and Assigned(FOnChanging) then
- FOnChanging(Self);
-end;
-
-procedure TTntStringList.Clear;
-begin
- if FCount <> 0 then
- begin
- Changing;
- Finalize(FList^[0], FCount);
- FCount := 0;
- SetCapacity(0);
- Changed;
- end;
-end;
-
-procedure TTntStringList.Delete(Index: Integer);
-begin
- if (Index < 0) or (Index >= FCount) then Error(PResStringRec(@SListIndexError), Index);
- Changing;
- Finalize(FList^[Index]);
- Dec(FCount);
- if Index < FCount then
- System.Move(FList^[Index + 1], FList^[Index],
- (FCount - Index) * SizeOf(TWideStringItem));
- Changed;
-end;
-
-procedure TTntStringList.Exchange(Index1, Index2: Integer);
-begin
- if (Index1 < 0) or (Index1 >= FCount) then Error(PResStringRec(@SListIndexError), Index1);
- if (Index2 < 0) or (Index2 >= FCount) then Error(PResStringRec(@SListIndexError), Index2);
- Changing;
- ExchangeItems(Index1, Index2);
- Changed;
-end;
-
-procedure TTntStringList.ExchangeItems(Index1, Index2: Integer);
-var
- Temp: Integer;
- Item1, Item2: PWideStringItem;
-begin
- Item1 := @FList^[Index1];
- Item2 := @FList^[Index2];
- Temp := Integer(Item1^.FString);
- Integer(Item1^.FString) := Integer(Item2^.FString);
- Integer(Item2^.FString) := Temp;
- Temp := Integer(Item1^.FObject);
- Integer(Item1^.FObject) := Integer(Item2^.FObject);
- Integer(Item2^.FObject) := Temp;
-end;
-
-function TTntStringList.Find(const S: WideString; var Index: Integer): Boolean;
-var
- L, H, I, C: Integer;
-begin
- Result := False;
- L := 0;
- H := FCount - 1;
- while L <= H do
- begin
- I := (L + H) shr 1;
- C := CompareStrings(FList^[I].FString, S);
- if C < 0 then L := I + 1 else
- begin
- H := I - 1;
- if C = 0 then
- begin
- Result := True;
- if Duplicates <> dupAccept then L := I;
- end;
- end;
- end;
- Index := L;
-end;
-
-function TTntStringList.Get(Index: Integer): WideString;
-begin
- if (Index < 0) or (Index >= FCount) then Error(PResStringRec(@SListIndexError), Index);
- Result := FList^[Index].FString;
-end;
-
-function TTntStringList.GetCapacity: Integer;
-begin
- Result := FCapacity;
-end;
-
-function TTntStringList.GetCount: Integer;
-begin
- Result := FCount;
-end;
-
-function TTntStringList.GetObject(Index: Integer): TObject;
-begin
- if (Index < 0) or (Index >= FCount) then Error(PResStringRec(@SListIndexError), Index);
- Result := FList^[Index].FObject;
-end;
-
-procedure TTntStringList.Grow;
-var
- Delta: Integer;
-begin
- if FCapacity > 64 then Delta := FCapacity div 4 else
- if FCapacity > 8 then Delta := 16 else
- Delta := 4;
- SetCapacity(FCapacity + Delta);
-end;
-
-function TTntStringList.IndexOf(const S: WideString): Integer;
-begin
- if not Sorted then Result := inherited IndexOf(S) else
- if not Find(S, Result) then Result := -1;
-end;
-
-function TTntStringList.IndexOfName(const Name: WideString): Integer;
-var
- NameKey: WideString;
-begin
- if not Sorted then
- Result := inherited IndexOfName(Name)
- else begin
- // use sort to find index more quickly
- NameKey := Name + NameValueSeparator;
- Find(NameKey, Result);
- if (Result < 0) or (Result > Count - 1) then
- Result := -1
- else if CompareStrings(NameKey, Copy(Strings[Result], 1, Length(NameKey))) <> 0 then
- Result := -1
- end;
-end;
-
-procedure TTntStringList.Insert(Index: Integer; const S: WideString);
-begin
- InsertObject(Index, S, nil);
-end;
-
-procedure TTntStringList.InsertObject(Index: Integer; const S: WideString;
- AObject: TObject);
-begin
- if Sorted then Error(PResStringRec(@SSortedListError), 0);
- if (Index < 0) or (Index > FCount) then Error(PResStringRec(@SListIndexError), Index);
- InsertItem(Index, S, AObject);
-end;
-
-procedure TTntStringList.InsertItem(Index: Integer; const S: WideString; AObject: TObject);
-begin
- Changing;
- if FCount = FCapacity then Grow;
- if Index < FCount then
- System.Move(FList^[Index], FList^[Index + 1],
- (FCount - Index) * SizeOf(TWideStringItem));
- with FList^[Index] do
- begin
- Pointer(FString) := nil;
- FObject := AObject;
- FString := S;
- end;
- Inc(FCount);
- Changed;
-end;
-
-procedure TTntStringList.Put(Index: Integer; const S: WideString);
-begin
- if Sorted then Error(PResStringRec(@SSortedListError), 0);
- if (Index < 0) or (Index >= FCount) then Error(PResStringRec(@SListIndexError), Index);
- Changing;
- FList^[Index].FString := S;
- Changed;
-end;
-
-procedure TTntStringList.PutObject(Index: Integer; AObject: TObject);
-begin
- if (Index < 0) or (Index >= FCount) then Error(PResStringRec(@SListIndexError), Index);
- Changing;
- FList^[Index].FObject := AObject;
- Changed;
-end;
-
-procedure TTntStringList.QuickSort(L, R: Integer; SCompare: TWideStringListSortCompare);
-var
- I, J, P: Integer;
-begin
- repeat
- I := L;
- J := R;
- P := (L + R) shr 1;
- repeat
- while SCompare(Self, I, P) < 0 do Inc(I);
- while SCompare(Self, J, P) > 0 do Dec(J);
- if I <= J then
- begin
- ExchangeItems(I, J);
- if P = I then
- P := J
- else if P = J then
- P := I;
- Inc(I);
- Dec(J);
- end;
- until I > J;
- if L < J then QuickSort(L, J, SCompare);
- L := I;
- until I >= R;
-end;
-
-procedure TTntStringList.SetCapacity(NewCapacity: Integer);
-begin
- ReallocMem(FList, NewCapacity * SizeOf(TWideStringItem));
- FCapacity := NewCapacity;
-end;
-
-procedure TTntStringList.SetSorted(Value: Boolean);
-begin
- if FSorted <> Value then
- begin
- if Value then Sort;
- FSorted := Value;
- end;
-end;
-
-procedure TTntStringList.SetUpdateState(Updating: Boolean);
-begin
- FUpdating := Updating;
- if Updating then Changing else Changed;
-end;
-
-function WideStringListCompareStrings(List: TTntStringList; Index1, Index2: Integer): Integer;
-begin
- Result := List.CompareStrings(List.FList^[Index1].FString,
- List.FList^[Index2].FString);
-end;
-
-procedure TTntStringList.Sort;
-begin
- CustomSort(WideStringListCompareStrings);
-end;
-
-procedure TTntStringList.CustomSort(Compare: TWideStringListSortCompare);
-begin
- if not Sorted and (FCount > 1) then
- begin
- Changing;
- QuickSort(0, FCount - 1, Compare);
- Changed;
- end;
-end;
-
-function TTntStringList.CompareStrings(const S1, S2: WideString): Integer;
-begin
- if CaseSensitive then
- Result := WideCompareStr(S1, S2)
- else
- Result := WideCompareText(S1, S2);
-end;
-
-procedure TTntStringList.SetCaseSensitive(const Value: Boolean);
-begin
- if Value <> FCaseSensitive then
- begin
- FCaseSensitive := Value;
- if Sorted then Sort;
- end;
-end;
-
-//------------------------- TntClasses introduced procs ----------------------------------
-
-function AutoDetectCharacterSet(Stream: TStream): TTntStreamCharSet;
-var
- ByteOrderMark: WideChar;
- BytesRead: Integer;
- Utf8Test: array[0..2] of AnsiChar;
-begin
- // Byte Order Mark
- ByteOrderMark := #0;
- if (Stream.Size - Stream.Position) >= SizeOf(ByteOrderMark) then begin
- BytesRead := Stream.Read(ByteOrderMark, SizeOf(ByteOrderMark));
- if (ByteOrderMark <> UNICODE_BOM) and (ByteOrderMark <> UNICODE_BOM_SWAPPED) then begin
- ByteOrderMark := #0;
- Stream.Seek(-BytesRead, soFromCurrent);
- if (Stream.Size - Stream.Position) >= Length(Utf8Test) * SizeOf(AnsiChar) then begin
- BytesRead := Stream.Read(Utf8Test[0], Length(Utf8Test) * SizeOf(AnsiChar));
- if Utf8Test <> UTF8_BOM then
- Stream.Seek(-BytesRead, soFromCurrent);
- end;
- end;
- end;
- // Test Byte Order Mark
- if ByteOrderMark = UNICODE_BOM then
- Result := csUnicode
- else if ByteOrderMark = UNICODE_BOM_SWAPPED then
- Result := csUnicodeSwapped
- else if Utf8Test = UTF8_BOM then
- Result := csUtf8
- else
- Result := csAnsi;
-end;
-
-function FindSortedListByTarget(List: TList; TargetCompare: TListTargetCompare;
- Target: Pointer; var Index: Integer): Boolean;
-var
- L, H, I, C: Integer;
-begin
- Result := False;
- L := 0;
- H := List.Count - 1;
- while L <= H do
- begin
- I := (L + H) shr 1;
- C := TargetCompare(List[i], Target);
- if C < 0 then L := I + 1 else
- begin
- H := I - 1;
- if C = 0 then
- begin
- Result := True;
- L := I;
- end;
- end;
- end;
- Index := L;
-end;
-
-function ClassIsRegistered(const clsid: TCLSID): Boolean;
-var
- OleStr: POleStr;
- Reg: TRegIniFile;
- Key, Filename: WideString;
-begin
- // First, check to see if there is a ProgID. This will tell if the
- // control is registered on the machine. No ProgID, control won't run
- Result := ProgIDFromCLSID(clsid, OleStr) = S_OK;
- if not Result then Exit; //Bail as soon as anything goes wrong.
-
- // Next, make sure that the file is actually there by rooting it out
- // of the registry
- Key := WideFormat('\SOFTWARE\Classes\CLSID\%s', [GUIDToString(clsid)]);
- Reg := TRegIniFile.Create;
- try
- Reg.RootKey := HKEY_LOCAL_MACHINE;
- Result := Reg.OpenKeyReadOnly(Key);
- if not Result then Exit; // Bail as soon as anything goes wrong.
-
- FileName := Reg.ReadString('InProcServer32', '', EmptyStr);
- if (Filename = EmptyStr) then // try another key for the file name
- begin
- FileName := Reg.ReadString('InProcServer', '', EmptyStr);
- end;
- Result := Filename <> EmptyStr;
- if not Result then Exit;
- Result := WideFileExists(Filename);
- finally
- Reg.Free;
- end;
-end;
-
-{ TBufferedAnsiString }
-
-procedure TBufferedAnsiString.Clear;
-begin
- LastWriteIndex := 0;
- if Length(FStringBuffer) > 0 then
- FillChar(FStringBuffer[1], Length(FStringBuffer) * SizeOf(AnsiChar), 0);
-end;
-
-procedure TBufferedAnsiString.AddChar(const wc: AnsiChar);
-const
- MIN_GROW_SIZE = 32;
- MAX_GROW_SIZE = 256;
-var
- GrowSize: Integer;
-begin
- Inc(LastWriteIndex);
- if LastWriteIndex > Length(FStringBuffer) then begin
- GrowSize := Max(MIN_GROW_SIZE, Length(FStringBuffer));
- GrowSize := Min(GrowSize, MAX_GROW_SIZE);
- SetLength(FStringBuffer, Length(FStringBuffer) + GrowSize);
- FillChar(FStringBuffer[LastWriteIndex], GrowSize * SizeOf(AnsiChar), 0);
- end;
- FStringBuffer[LastWriteIndex] := wc;
-end;
-
-procedure TBufferedAnsiString.AddString(const s: AnsiString);
-var
- LenS: Integer;
- BlockSize: Integer;
- AllocSize: Integer;
-begin
- LenS := Length(s);
- if LenS > 0 then begin
- Inc(LastWriteIndex);
- if LastWriteIndex + LenS - 1 > Length(FStringBuffer) then begin
- // determine optimum new allocation size
- BlockSize := Length(FStringBuffer) div 2;
- if BlockSize < 8 then
- BlockSize := 8;
- AllocSize := ((LenS div BlockSize) + 1) * BlockSize;
- // realloc buffer
- SetLength(FStringBuffer, Length(FStringBuffer) + AllocSize);
- FillChar(FStringBuffer[Length(FStringBuffer) - AllocSize + 1], AllocSize * SizeOf(AnsiChar), 0);
- end;
- CopyMemory(@FStringBuffer[LastWriteIndex], @s[1], LenS * SizeOf(AnsiChar));
- Inc(LastWriteIndex, LenS - 1);
- end;
-end;
-
-procedure TBufferedAnsiString.AddBuffer(Buff: PAnsiChar; Chars: Integer);
-var
- i: integer;
-begin
- for i := 1 to Chars do begin
- if Buff^ = #0 then
- break;
- AddChar(Buff^);
- Inc(Buff);
- end;
-end;
-
-function TBufferedAnsiString.Value: AnsiString;
-begin
- Result := PAnsiChar(FStringBuffer);
-end;
-
-function TBufferedAnsiString.BuffPtr: PAnsiChar;
-begin
- Result := PAnsiChar(FStringBuffer);
-end;
-
-{ TBufferedWideString }
-
-procedure TBufferedWideString.Clear;
-begin
- LastWriteIndex := 0;
- if Length(FStringBuffer) > 0 then
- FillChar(FStringBuffer[1], Length(FStringBuffer) * SizeOf(WideChar), 0);
-end;
-
-procedure TBufferedWideString.AddChar(const wc: WideChar);
-const
- MIN_GROW_SIZE = 32;
- MAX_GROW_SIZE = 256;
-var
- GrowSize: Integer;
-begin
- Inc(LastWriteIndex);
- if LastWriteIndex > Length(FStringBuffer) then begin
- GrowSize := Max(MIN_GROW_SIZE, Length(FStringBuffer));
- GrowSize := Min(GrowSize, MAX_GROW_SIZE);
- SetLength(FStringBuffer, Length(FStringBuffer) + GrowSize);
- FillChar(FStringBuffer[LastWriteIndex], GrowSize * SizeOf(WideChar), 0);
- end;
- FStringBuffer[LastWriteIndex] := wc;
-end;
-
-procedure TBufferedWideString.AddString(const s: WideString);
-var
- i: integer;
-begin
- for i := 1 to Length(s) do
- AddChar(s[i]);
-end;
-
-procedure TBufferedWideString.AddBuffer(Buff: PWideChar; Chars: Integer);
-var
- i: integer;
-begin
- for i := 1 to Chars do begin
- if Buff^ = #0 then
- break;
- AddChar(Buff^);
- Inc(Buff);
- end;
-end;
-
-function TBufferedWideString.Value: WideString;
-begin
- Result := PWideChar(FStringBuffer);
-end;
-
-function TBufferedWideString.BuffPtr: PWideChar;
-begin
- Result := PWideChar(FStringBuffer);
-end;
-
-{ TBufferedStreamReader }
-
-constructor TBufferedStreamReader.Create(Stream: TStream; BufferSize: Integer = 1024);
-begin
- // init stream
- FStream := Stream;
- FStreamSize := Stream.Size;
- // init buffer
- FBufferSize := BufferSize;
- SetLength(FBuffer, BufferSize);
- FBufferStartPosition := -FBufferSize; { out of any useful range }
- // init virtual position
- FVirtualPosition := 0;
-end;
-
-function TBufferedStreamReader.Seek(Offset: Integer; Origin: Word): Longint;
-begin
- case Origin of
- soFromBeginning: FVirtualPosition := Offset;
- soFromCurrent: Inc(FVirtualPosition, Offset);
- soFromEnd: FVirtualPosition := FStreamSize + Offset;
- end;
- Result := FVirtualPosition;
-end;
-
-procedure TBufferedStreamReader.UpdateBufferFromPosition(StartPos: Integer);
-begin
- try
- FStream.Position := StartPos;
- FStream.Read(FBuffer[0], FBufferSize);
- FBufferStartPosition := StartPos;
- except
- FBufferStartPosition := -FBufferSize; { out of any useful range }
- raise;
- end;
-end;
-
-function TBufferedStreamReader.Read(var Buffer; Count: Integer): Longint;
-var
- BytesLeft: Integer;
- FirstBufferRead: Integer;
- StreamDirectRead: Integer;
- Buf: PAnsiChar;
-begin
- if (FVirtualPosition >= 0) and (Count >= 0) then
- begin
- Result := FStreamSize - FVirtualPosition;
- if Result > 0 then
- begin
- if Result > Count then
- Result := Count;
-
- Buf := @Buffer;
- BytesLeft := Result;
-
- // try to read what is left in buffer
- FirstBufferRead := FBufferStartPosition + FBufferSize - FVirtualPosition;
- if (FirstBufferRead < 0) or (FirstBufferRead > FBufferSize) then
- FirstBufferRead := 0;
- FirstBufferRead := Min(FirstBufferRead, Result);
- if FirstBufferRead > 0 then begin
- Move(FBuffer[FVirtualPosition - FBufferStartPosition], Buf[0], FirstBufferRead);
- Dec(BytesLeft, FirstBufferRead);
- end;
-
- if BytesLeft > 0 then begin
- // The first read in buffer was not enough
- StreamDirectRead := (BytesLeft div FBufferSize) * FBufferSize;
- FStream.Position := FVirtualPosition + FirstBufferRead;
- FStream.Read(Buf[FirstBufferRead], StreamDirectRead);
- Dec(BytesLeft, StreamDirectRead);
-
- if BytesLeft > 0 then begin
- // update buffer, and read what is left
- UpdateBufferFromPosition(FStream.Position);
- Move(FBuffer[0], Buf[FirstBufferRead + StreamDirectRead], BytesLeft);
- end;
- end;
-
- Inc(FVirtualPosition, Result);
- Exit;
- end;
- end;
- Result := 0;
-end;
-
-function TBufferedStreamReader.Write(const Buffer; Count: Integer): Longint;
-begin
- raise ETntInternalError.Create('Internal Error: class can not write.');
- Result := 0;
-end;
-
-//-------- synced wide string -----------------
-
-function GetSyncedWideString(var WideStr: WideString; const AnsiStr: AnsiString): WideString;
-begin
- if AnsiString(WideStr) <> (AnsiStr) then begin
- WideStr := AnsiStr; {AnsiStr changed. Keep WideStr in sync.}
- end;
- Result := WideStr;
-end;
-
-procedure SetSyncedWideString(const Value: WideString; var WideStr: WideString;
- const AnsiStr: AnsiString; SetAnsiStr: TSetAnsiStrEvent);
-begin
- if Value <> GetSyncedWideString(WideStr, AnsiStr) then
- begin
- if (not WideSameStr(Value, AnsiString(Value))) {unicode chars lost in conversion}
- and (AnsiStr = AnsiString(Value)) {AnsiStr is not going to change}
- then begin
- SetAnsiStr(''); {force the change}
- end;
- WideStr := Value;
- SetAnsiStr(Value);
- end;
-end;
-
-{ TWideComponentHelper }
-
-function CompareComponentHelperToTarget(Item, Target: Pointer): Integer;
-begin
- if PtrUInt(TWideComponentHelper(Item).FComponent) < PtrUInt(Target) then
- Result := -1
- else if PtrUInt(TWideComponentHelper(Item).FComponent) > PtrUInt(Target) then
- Result := 1
- else
- Result := 0;
-end;
-
-function FindWideComponentHelperIndex(ComponentHelperList: TComponentList; Component: TComponent; var Index: Integer): Boolean;
-begin
- // find Component in sorted wide caption list (list is sorted by TWideComponentHelper.FComponent)
- Result := FindSortedListByTarget(ComponentHelperList, CompareComponentHelperToTarget, Component, Index);
-end;
-
-constructor TWideComponentHelper.Create(AOwner: TComponent);
-begin
- raise ETntInternalError.Create('TNT Internal Error: TWideComponentHelper.Create should never be encountered.');
-end;
-
-constructor TWideComponentHelper.CreateHelper(AOwner: TComponent; ComponentHelperList: TComponentList);
-var
- Index: Integer;
-begin
- // don't use direct ownership for memory management
- inherited Create(nil);
- FComponent := AOwner;
- FComponent.FreeNotification(Self);
-
- // insert into list according to sort
- FindWideComponentHelperIndex(ComponentHelperList, FComponent, Index);
- ComponentHelperList.Insert(Index, Self);
-end;
-
-procedure TWideComponentHelper.Notification(AComponent: TComponent; Operation: TOperation);
-begin
- inherited;
- if (AComponent = FComponent) and (Operation = opRemove) then begin
- FComponent := nil;
- Free;
- end;
-end;
-
-function FindWideComponentHelper(ComponentHelperList: TComponentList; Component: TComponent): TWideComponentHelper;
-var
- Index: integer;
-begin
- if FindWideComponentHelperIndex(ComponentHelperList, Component, Index) then begin
- Result := TWideComponentHelper(ComponentHelperList[Index]);
- Assert(Result.FComponent = Component, 'TNT Internal Error: FindWideComponentHelperIndex failed.');
- end else
- Result := nil;
-end;
-
-initialization
- RuntimeUTFStreaming := False; { Delphi 6 and higher don't need UTF help at runtime. }
-
-end.
+
+{*****************************************************************************}
+{ }
+{ Tnt Delphi Unicode Controls }
+{ http://www.tntware.com/delphicontrols/unicode/ }
+{ Version: 2.3.0 }
+{ }
+{ Copyright (c) 2002-2007, Troy Wolbrink (troy.wolbrink@tntware.com) }
+{ }
+{*****************************************************************************}
+
+unit TntClasses;
+
+{$IFDEF FPC}
+ {$MODE Delphi}
+{$ENDIF}
+
+{$INCLUDE TntCompilers.inc}
+
+interface
+
+{ TODO: Consider: TTntRegIniFile, TTntMemIniFile (consider if UTF8 fits into this solution). }
+
+{***********************************************}
+{ WideChar-streaming implemented by Maël Hörz }
+{***********************************************}
+
+uses
+ Classes, SysUtils, Windows,
+ {$IFNDEF COMPILER_10_UP}
+ TntWideStrings,
+ {$ELSE}
+ WideStrings,
+ {$ENDIF}
+ ActiveX, Contnrs;
+
+// ......... introduced .........
+type
+ TTntStreamCharSet = (csAnsi, csUnicode, csUnicodeSwapped, csUtf8);
+
+function AutoDetectCharacterSet(Stream: TStream): TTntStreamCharSet;
+
+//---------------------------------------------------------------------------------------------
+// Tnt - Classes
+//---------------------------------------------------------------------------------------------
+
+{TNT-WARN ExtractStrings}
+{TNT-WARN LineStart}
+{TNT-WARN TStringStream} // TODO: Implement a TWideStringStream
+
+// A potential implementation of TWideStringStream can be found at:
+// http://kdsxml.cvs.sourceforge.net/kdsxml/Global/KDSClasses.pas?revision=1.10&view=markup
+
+procedure TntPersistent_AfterInherited_DefineProperties(Filer: TFiler; Instance: TPersistent);
+
+type
+{TNT-WARN TFileStream}
+ TTntFileStream = class(THandleStream)
+ public
+ constructor Create(const FileName: WideString; Mode: Word);
+ destructor Destroy; override;
+ end;
+
+{TNT-WARN TMemoryStream}
+ TTntMemoryStream = class(TMemoryStream{TNT-ALLOW TMemoryStream})
+ public
+ procedure LoadFromFile(const FileName: WideString);
+ procedure SaveToFile(const FileName: WideString);
+ end;
+
+{TNT-WARN TResourceStream}
+ TTntResourceStream = class(TCustomMemoryStream)
+ private
+ HResInfo: HRSRC;
+ HGlobal: THandle;
+ procedure Initialize(Instance: THandle; Name, ResType: PWideChar);
+ public
+ constructor Create(Instance: THandle; const ResName: WideString; ResType: PWideChar);
+ constructor CreateFromID(Instance: THandle; ResID: Word; ResType: PWideChar);
+ destructor Destroy; override;
+ function Write(const Buffer; Count: Longint): Longint; override;
+ procedure SaveToFile(const FileName: WideString);
+ end;
+
+ TTntStrings = class;
+
+{TNT-WARN TAnsiStrings}
+ TAnsiStrings{TNT-ALLOW TAnsiStrings} = class(TStrings{TNT-ALLOW TStrings})
+ public
+ procedure LoadFromFile(const FileName: WideString); reintroduce;
+ procedure SaveToFile(const FileName: WideString); reintroduce;
+ procedure LoadFromFileEx(const FileName: WideString; CodePage: Cardinal);
+ procedure SaveToFileEx(const FileName: WideString; CodePage: Cardinal);
+ procedure LoadFromStreamEx(Stream: TStream; CodePage: Cardinal); virtual; abstract;
+ procedure SaveToStreamEx(Stream: TStream; CodePage: Cardinal); virtual; abstract;
+ end;
+
+ TAnsiStringsForWideStringsAdapter = class(TAnsiStrings{TNT-ALLOW TAnsiStrings})
+ private
+ FWideStrings: TTntStrings;
+ FAdapterCodePage: Cardinal;
+ protected
+ function Get(Index: Integer): AnsiString; override;
+ procedure Put(Index: Integer; const S: AnsiString); override;
+ function GetCount: Integer; override;
+ function GetObject(Index: Integer): TObject; override;
+ procedure PutObject(Index: Integer; AObject: TObject); override;
+ procedure SetUpdateState(Updating: Boolean); override;
+ function AdapterCodePage: Cardinal; dynamic;
+ public
+ constructor Create(AWideStrings: TTntStrings; _AdapterCodePage: Cardinal = 0);
+ procedure Clear; override;
+ procedure Delete(Index: Integer); override;
+ procedure Insert(Index: Integer; const S: AnsiString); override;
+ procedure LoadFromStreamEx(Stream: TStream; CodePage: Cardinal); override;
+ procedure SaveToStreamEx(Stream: TStream; CodePage: Cardinal); override;
+ end;
+
+{TNT-WARN TStrings}
+ TTntStrings = class(TWideStrings)
+ private
+ FLastFileCharSet: TTntStreamCharSet;
+ FAnsiStrings: TAnsiStrings{TNT-ALLOW TAnsiStrings};
+ procedure SetAnsiStrings(const Value: TAnsiStrings{TNT-ALLOW TAnsiStrings});
+ procedure ReadData(Reader: TReader);
+ procedure ReadDataUTF7(Reader: TReader);
+ procedure ReadDataUTF8(Reader: TReader);
+ procedure WriteDataUTF7(Writer: TWriter);
+ protected
+ procedure DefineProperties(Filer: TFiler); override;
+ public
+ constructor Create;
+ destructor Destroy; override;
+
+ procedure LoadFromFile(const FileName: WideString); override;
+ procedure LoadFromStream(Stream: TStream); override;
+ procedure LoadFromStream_BOM(Stream: TStream; WithBOM: Boolean); virtual;
+
+ procedure SaveToFile(const FileName: WideString); override;
+ procedure SaveToStream(Stream: TStream); override;
+ procedure SaveToStream_BOM(Stream: TStream; WithBOM: Boolean); virtual;
+
+ property LastFileCharSet: TTntStreamCharSet read FLastFileCharSet;
+ published
+ property AnsiStrings: TAnsiStrings{TNT-ALLOW TAnsiStrings} read FAnsiStrings write SetAnsiStrings stored False;
+ end;
+
+{ TTntStringList class }
+
+ TTntStringList = class;
+ TWideStringListSortCompare = function(List: TTntStringList; Index1, Index2: Integer): Integer;
+
+{TNT-WARN TStringList}
+ TTntStringList = class(TTntStrings)
+ private
+ FUpdating: Boolean;
+ FList: PWideStringItemList;
+ FCount: Integer;
+ FCapacity: Integer;
+ FSorted: Boolean;
+ FDuplicates: TDuplicates;
+ FCaseSensitive: Boolean;
+ FOnChange: TNotifyEvent;
+ FOnChanging: TNotifyEvent;
+ procedure ExchangeItems(Index1, Index2: Integer);
+ procedure Grow;
+ procedure QuickSort(L, R: Integer; SCompare: TWideStringListSortCompare);
+ procedure SetSorted(Value: Boolean);
+ procedure SetCaseSensitive(const Value: Boolean);
+ protected
+ procedure Changed; virtual;
+ procedure Changing; virtual;
+ function Get(Index: Integer): WideString; override;
+ function GetCapacity: Integer; override;
+ function GetCount: Integer; override;
+ function GetObject(Index: Integer): TObject; override;
+ procedure Put(Index: Integer; const S: WideString); override;
+ procedure PutObject(Index: Integer; AObject: TObject); override;
+ procedure SetCapacity(NewCapacity: Integer); override;
+ procedure SetUpdateState(Updating: Boolean); override;
+ function CompareStrings(const S1, S2: WideString): Integer; override;
+ procedure InsertItem(Index: Integer; const S: WideString; AObject: TObject); virtual;
+ public
+ destructor Destroy; override;
+ function Add(const S: WideString): Integer; override;
+ function AddObject(const S: WideString; AObject: TObject): Integer; override;
+ procedure Clear; override;
+ procedure Delete(Index: Integer); override;
+ procedure Exchange(Index1, Index2: Integer); override;
+ function Find(const S: WideString; var Index: Integer): Boolean; virtual;
+ function IndexOf(const S: WideString): Integer; override;
+ function IndexOfName(const Name: WideString): Integer; override;
+ procedure Insert(Index: Integer; const S: WideString); override;
+ procedure InsertObject(Index: Integer; const S: WideString;
+ AObject: TObject); override;
+ procedure Sort; virtual;
+ procedure CustomSort(Compare: TWideStringListSortCompare); virtual;
+ property Duplicates: TDuplicates read FDuplicates write FDuplicates;
+ property Sorted: Boolean read FSorted write SetSorted;
+ property CaseSensitive: Boolean read FCaseSensitive write SetCaseSensitive;
+ property OnChange: TNotifyEvent read FOnChange write FOnChange;
+ property OnChanging: TNotifyEvent read FOnChanging write FOnChanging;
+ end;
+
+// ......... introduced .........
+type
+ TListTargetCompare = function (Item, Target: Pointer): Integer;
+
+function FindSortedListByTarget(List: TList; TargetCompare: TListTargetCompare;
+ Target: Pointer; var Index: Integer): Boolean;
+
+function ClassIsRegistered(const clsid: TCLSID): Boolean;
+
+var
+ RuntimeUTFStreaming: Boolean;
+
+type
+ TBufferedAnsiString = class(TObject)
+ private
+ FStringBuffer: AnsiString;
+ LastWriteIndex: Integer;
+ public
+ procedure Clear;
+ procedure AddChar(const wc: AnsiChar);
+ procedure AddString(const s: AnsiString);
+ procedure AddBuffer(Buff: PAnsiChar; Chars: Integer);
+ function Value: AnsiString;
+ function BuffPtr: PAnsiChar;
+ end;
+
+ TBufferedWideString = class(TObject)
+ private
+ FStringBuffer: WideString;
+ LastWriteIndex: Integer;
+ public
+ procedure Clear;
+ procedure AddChar(const wc: WideChar);
+ procedure AddString(const s: WideString);
+ procedure AddBuffer(Buff: PWideChar; Chars: Integer);
+ function Value: WideString;
+ function BuffPtr: PWideChar;
+ end;
+
+ TBufferedStreamReader = class(TStream)
+ private
+ FStream: TStream;
+ FStreamSize: Integer;
+ FBuffer: array of Byte;
+ FBufferSize: Integer;
+ FBufferStartPosition: Integer;
+ FVirtualPosition: Integer;
+ procedure UpdateBufferFromPosition(StartPos: Integer);
+ public
+ constructor Create(Stream: TStream; BufferSize: Integer = 1024);
+ function Read(var Buffer; Count: Longint): Longint; override;
+ function Write(const Buffer; Count: Longint): Longint; override;
+ function Seek(Offset: Longint; Origin: Word): Longint; override;
+ end;
+
+// "synced" wide string
+type TSetAnsiStrEvent = procedure(const Value: AnsiString) of object;
+function GetSyncedWideString(var WideStr: WideString; const AnsiStr: AnsiString): WideString;
+procedure SetSyncedWideString(const Value: WideString; var WideStr: WideString;
+ const AnsiStr: AnsiString; SetAnsiStr: TSetAnsiStrEvent);
+
+type
+ TWideComponentHelper = class(TComponent)
+ private
+ FComponent: TComponent;
+ protected
+ procedure Notification(AComponent: TComponent; Operation: TOperation); override;
+ public
+ constructor Create(AOwner: TComponent); override;
+ constructor CreateHelper(AOwner: TComponent; ComponentHelperList: TComponentList);
+ end;
+
+function FindWideComponentHelper(ComponentHelperList: TComponentList; Component: TComponent): TWideComponentHelper;
+
+implementation
+
+uses
+ RTLConsts, ComObj, Math,
+ Registry, TypInfo, TntSystem, TntSysUtils;
+
+{ TntPersistent }
+
+//===========================================================================
+// The Delphi 5 Classes.pas never supported the streaming of WideStrings.
+// The Delphi 6 Classes.pas supports WideString streaming. But it's too bad that
+// the Delphi 6 IDE doesn't use the updated Classes.pas. Switching between Form/Text
+// mode corrupts extended characters in WideStrings even under Delphi 6.
+// Delphi 7 seems to finally get right. But let's keep the UTF7 support at design time
+// to enable sharing source code with previous versions of Delphi.
+//
+// The purpose of this solution is to store WideString properties which contain
+// non-ASCII chars in the form of UTF7 under the old property name + '_UTF7'.
+//
+// Special thanks go to Francisco Leong for helping to develop this solution.
+//
+
+{ TTntWideStringPropertyFiler }
+type
+ TTntWideStringPropertyFiler = class
+ private
+ FInstance: TPersistent;
+ FPropInfo: PPropInfo;
+ procedure ReadDataUTF8(Reader: TReader);
+ procedure ReadDataUTF7(Reader: TReader);
+ procedure WriteDataUTF7(Writer: TWriter);
+ public
+ procedure DefineProperties(Filer: TFiler; Instance: TPersistent; PropName: AnsiString);
+ end;
+
+function ReaderNeedsUtfHelp(Reader: TReader): Boolean;
+begin
+ if Reader.Owner = nil then
+ Result := False { designtime - visual form inheritance ancestor }
+ else if csDesigning in Reader.Owner.ComponentState then
+ {$IFDEF COMPILER_7_UP}
+ Result := False { Delphi 7+: designtime - doesn't need UTF help. }
+ {$ELSE}
+ Result := True { Delphi 6: designtime - always needs UTF help. }
+ {$ENDIF}
+ else
+ Result := RuntimeUTFStreaming; { runtime }
+end;
+
+procedure TTntWideStringPropertyFiler.ReadDataUTF8(Reader: TReader);
+begin
+ if ReaderNeedsUtfHelp(Reader) then
+ SetWideStrProp(FInstance, FPropInfo, UTF8ToWideString(Reader.ReadString))
+ else
+ Reader.ReadString; { do nothing with Result }
+end;
+
+procedure TTntWideStringPropertyFiler.ReadDataUTF7(Reader: TReader);
+begin
+ if ReaderNeedsUtfHelp(Reader) then
+ SetWideStrProp(FInstance, FPropInfo, UTF7ToWideString(Reader.ReadString))
+ else
+ Reader.ReadString; { do nothing with Result }
+end;
+
+procedure TTntWideStringPropertyFiler.WriteDataUTF7(Writer: TWriter);
+begin
+ Writer.WriteString(WideStringToUTF7(GetWideStrProp(FInstance, FPropInfo)));
+end;
+
+procedure TTntWideStringPropertyFiler.DefineProperties(Filer: TFiler; Instance: TPersistent;
+ PropName: AnsiString);
+
+ {$IFNDEF COMPILER_7_UP}
+ function HasData: Boolean;
+ var
+ CurrPropValue: WideString;
+ begin
+ // must be stored
+ Result := IsStoredProp(Instance, FPropInfo);
+ if Result
+ and (Filer.Ancestor <> nil)
+ and (GetPropInfo(Filer.Ancestor, PropName, [tkWString]) <> nil) then
+ begin
+ // must be different than ancestor
+ CurrPropValue := GetWideStrProp(Instance, FPropInfo);
+ Result := CurrPropValue <> GetWideStrProp(Filer.Ancestor, GetPropInfo(Filer.Ancestor, PropName));
+ end;
+ if Result then begin
+ // must be non-blank and different than UTF8 (implies all ASCII <= 127)
+ CurrPropValue := GetWideStrProp(Instance, FPropInfo);
+ Result := (CurrPropValue <> '') and (WideStringToUTF8(CurrPropValue) <> CurrPropValue);
+ end;
+ end;
+ {$ENDIF}
+
+begin
+ FInstance := Instance;
+ FPropInfo := GetPropInfo(Instance, PropName, [tkWString]);
+ if FPropInfo <> nil then begin
+ // must be published (and of type WideString)
+ Filer.DefineProperty(PropName + 'W', ReadDataUTF8, nil, False);
+ {$IFDEF COMPILER_7_UP}
+ Filer.DefineProperty(PropName + '_UTF7', ReadDataUTF7, WriteDataUTF7, False);
+ {$ELSE}
+ Filer.DefineProperty(PropName + '_UTF7', ReadDataUTF7, WriteDataUTF7, HasData);
+ {$ENDIF}
+ end;
+ FInstance := nil;
+ FPropInfo := nil;
+end;
+
+{ TTntWideCharPropertyFiler }
+type
+ TTntWideCharPropertyFiler = class
+ private
+ FInstance: TPersistent;
+ FPropInfo: PPropInfo;
+ {$IFNDEF COMPILER_9_UP}
+ FWriter: TWriter;
+ procedure GetLookupInfo(var Ancestor: TPersistent;
+ var Root, LookupRoot, RootAncestor: TComponent);
+ {$ENDIF}
+ procedure ReadData_W(Reader: TReader);
+ procedure ReadDataUTF7(Reader: TReader);
+ procedure WriteData_W(Writer: TWriter);
+ function ReadChar(Reader: TReader): WideChar;
+ public
+ procedure DefineProperties(Filer: TFiler; Instance: TPersistent; PropName: AnsiString);
+ end;
+
+{$IFNDEF COMPILER_9_UP}
+type
+ TGetLookupInfoEvent = procedure(var Ancestor: TPersistent;
+ var Root, LookupRoot, RootAncestor: TComponent) of object;
+
+function AncestorIsValid(Ancestor: TPersistent; Root, RootAncestor: TComponent): Boolean;
+begin
+ Result := (Ancestor <> nil) and (RootAncestor <> nil) and
+ Root.InheritsFrom(RootAncestor.ClassType);
+end;
+
+function IsDefaultOrdPropertyValue(Instance: TObject; PropInfo: PPropInfo;
+ OnGetLookupInfo: TGetLookupInfoEvent): Boolean;
+var
+ Ancestor: TPersistent;
+ LookupRoot: TComponent;
+ RootAncestor: TComponent;
+ Root: TComponent;
+ AncestorValid: Boolean;
+ Value: Longint;
+ Default: LongInt;
+begin
+ Ancestor := nil;
+ Root := nil;
+ LookupRoot := nil;
+ RootAncestor := nil;
+
+ if Assigned(OnGetLookupInfo) then
+ OnGetLookupInfo(Ancestor, Root, LookupRoot, RootAncestor);
+
+ AncestorValid := AncestorIsValid(Ancestor, Root, RootAncestor);
+
+ Result := True;
+ if (PropInfo^.GetProc <> nil) and (PropInfo^.SetProc <> nil) then
+ begin
+ Value := GetOrdProp(Instance, PropInfo);
+ if AncestorValid then
+ Result := Value = GetOrdProp(Ancestor, PropInfo)
+ else
+ begin
+ Default := PPropInfo(PropInfo)^.Default;
+ Result := (Default <> LongInt($80000000)) and (Value = Default);
+ end;
+ end;
+end;
+
+procedure TTntWideCharPropertyFiler.GetLookupInfo(var Ancestor: TPersistent;
+ var Root, LookupRoot, RootAncestor: TComponent);
+begin
+ Ancestor := FWriter.Ancestor;
+ Root := FWriter.Root;
+ LookupRoot := FWriter.LookupRoot;
+ RootAncestor := FWriter.RootAncestor;
+end;
+{$ENDIF}
+
+function TTntWideCharPropertyFiler.ReadChar(Reader: TReader): WideChar;
+var
+ Temp: WideString;
+begin
+ case Reader.NextValue of
+ vaWString:
+ Temp := Reader.ReadWideString;
+ vaString:
+ Temp := Reader.ReadString;
+ else
+ raise EReadError.Create(SInvalidPropertyValue);
+ end;
+
+ if Length(Temp) > 1 then
+ raise EReadError.Create(SInvalidPropertyValue);
+ Result := Temp[1];
+end;
+
+procedure TTntWideCharPropertyFiler.ReadData_W(Reader: TReader);
+begin
+ SetOrdProp(FInstance, FPropInfo, Ord(ReadChar(Reader)));
+end;
+
+procedure TTntWideCharPropertyFiler.ReadDataUTF7(Reader: TReader);
+var
+ S: WideString;
+begin
+ S := UTF7ToWideString(Reader.ReadString);
+ if S = '' then
+ SetOrdProp(FInstance, FPropInfo, 0)
+ else
+ SetOrdProp(FInstance, FPropInfo, Ord(S[1]))
+end;
+
+type TAccessWriter = class(TWriter);
+
+procedure TTntWideCharPropertyFiler.WriteData_W(Writer: TWriter);
+var
+ L: Integer;
+ Temp: WideString;
+{$IFDEF FPC}
+// Workaround: the Buffer parameter of TWriter.Write() must be of a fixed size
+// type for FPC >= 2.4.0. The values vaWString, Ord(vaWString) or Integer(vaWString)
+// are not allowed anymore.
+const
+ vaWStringInt: integer = Ord(vaWString);
+{$ENDIF}
+begin
+ Temp := WideChar(GetOrdProp(FInstance, FPropInfo));
+
+ {$IFNDEF FPC}
+ TAccessWriter(Writer).WriteValue(vaWString);
+ {$ELSE}
+ TAccessWriter(Writer).Write(vaWStringInt, SizeOf(vaWString));
+ {$ENDIF}
+ L := Length(Temp);
+ Writer.Write(L, SizeOf(Integer));
+ Writer.Write(Pointer(@Temp[1])^, L * 2);
+end;
+
+procedure TTntWideCharPropertyFiler.DefineProperties(Filer: TFiler;
+ Instance: TPersistent; PropName: AnsiString);
+
+ {$IFNDEF COMPILER_9_UP}
+ function HasData: Boolean;
+ var
+ CurrPropValue: Integer;
+ begin
+ // must be stored
+ Result := IsStoredProp(Instance, FPropInfo);
+ if Result and (Filer.Ancestor <> nil) and
+ (GetPropInfo(Filer.Ancestor, PropName, [tkWChar]) <> nil) then
+ begin
+ // must be different than ancestor
+ CurrPropValue := GetOrdProp(Instance, FPropInfo);
+ Result := CurrPropValue <> GetOrdProp(Filer.Ancestor, GetPropInfo(Filer.Ancestor, PropName));
+ end;
+ if Result and (Filer is TWriter) then
+ begin
+ FWriter := TWriter(Filer);
+ Result := not IsDefaultOrdPropertyValue(Instance, FPropInfo, GetLookupInfo);
+ end;
+ end;
+ {$ENDIF}
+
+begin
+ FInstance := Instance;
+ FPropInfo := GetPropInfo(Instance, PropName, [tkWChar]);
+ if FPropInfo <> nil then
+ begin
+ // must be published (and of type WideChar)
+ {$IFDEF COMPILER_9_UP}
+ Filer.DefineProperty(PropName + 'W', ReadData_W, WriteData_W, False);
+ {$ELSE}
+ Filer.DefineProperty(PropName + 'W', ReadData_W, WriteData_W, HasData);
+ {$ENDIF}
+ Filer.DefineProperty(PropName + '_UTF7', ReadDataUTF7, nil, False);
+ end;
+ FInstance := nil;
+ FPropInfo := nil;
+end;
+
+procedure TntPersistent_AfterInherited_DefineProperties(Filer: TFiler; Instance: TPersistent);
+var
+ I, Count: Integer;
+ PropInfo: PPropInfo;
+ PropList: PPropList;
+ WideStringFiler: TTntWideStringPropertyFiler;
+ WideCharFiler: TTntWideCharPropertyFiler;
+begin
+ Count := GetTypeData(Instance.ClassInfo)^.PropCount;
+ if Count > 0 then
+ begin
+ WideStringFiler := TTntWideStringPropertyFiler.Create;
+ try
+ WideCharFiler := TTntWideCharPropertyFiler.Create;
+ try
+ GetMem(PropList, Count * SizeOf(Pointer));
+ try
+ GetPropInfos(Instance.ClassInfo, PropList);
+ for I := 0 to Count - 1 do
+ begin
+ PropInfo := PropList^[I];
+ if (PropInfo = nil) then
+ break;
+ if (PropInfo.PropType^.Kind = tkWString) then
+ WideStringFiler.DefineProperties(Filer, Instance, PropInfo.Name)
+ else if (PropInfo.PropType^.Kind = tkWChar) then
+ WideCharFiler.DefineProperties(Filer, Instance, PropInfo.Name)
+ end;
+ finally
+ FreeMem(PropList, Count * SizeOf(Pointer));
+ end;
+ finally
+ WideCharFiler.Free;
+ end;
+ finally
+ WideStringFiler.Free;
+ end;
+ end;
+end;
+
+{ TTntFileStream }
+
+{$IFDEF FPC}
+ {$DEFINE HAS_SFCREATEERROREX}
+{$ENDIF}
+{$IFDEF DELPHI_7_UP}
+ {$DEFINE HAS_SFCREATEERROREX}
+{$ENDIF}
+
+constructor TTntFileStream.Create(const FileName: WideString; Mode: Word);
+var
+ CreateHandle: Integer;
+ {$IFDEF HAS_SFCREATEERROREX}
+ ErrorMessage: WideString;
+ {$ENDIF}
+begin
+ if Mode = fmCreate then
+ begin
+ CreateHandle := WideFileCreate(FileName);
+ if CreateHandle < 0 then begin
+ {$IFDEF HAS_SFCREATEERROREX}
+ ErrorMessage := WideSysErrorMessage(GetLastError);
+ raise EFCreateError.CreateFmt(SFCreateErrorEx, [WideExpandFileName(FileName), ErrorMessage]);
+ {$ELSE}
+ raise EFCreateError.CreateFmt(SFCreateError, [WideExpandFileName(FileName)]);
+ {$ENDIF}
+ end;
+ end else
+ begin
+ CreateHandle := WideFileOpen(FileName, Mode);
+ if CreateHandle < 0 then begin
+ {$IFDEF HAS_SFCREATEERROREX}
+ ErrorMessage := WideSysErrorMessage(GetLastError);
+ raise EFOpenError.CreateFmt(SFOpenErrorEx, [WideExpandFileName(FileName), ErrorMessage]);
+ {$ELSE}
+ raise EFOpenError.CreateFmt(SFOpenError, [WideExpandFileName(FileName)]);
+ {$ENDIF}
+ end;
+ end;
+ inherited Create(CreateHandle);
+end;
+
+destructor TTntFileStream.Destroy;
+begin
+ if Handle >= 0 then FileClose(Handle);
+end;
+
+{ TTntMemoryStream }
+
+procedure TTntMemoryStream.LoadFromFile(const FileName: WideString);
+var
+ Stream: TStream;
+begin
+ Stream := TTntFileStream.Create(FileName, fmOpenRead or fmShareDenyWrite);
+ try
+ LoadFromStream(Stream);
+ finally
+ Stream.Free;
+ end;
+end;
+
+procedure TTntMemoryStream.SaveToFile(const FileName: WideString);
+var
+ Stream: TStream;
+begin
+ Stream := TTntFileStream.Create(FileName, fmCreate);
+ try
+ SaveToStream(Stream);
+ finally
+ Stream.Free;
+ end;
+end;
+
+{ TTntResourceStream }
+
+constructor TTntResourceStream.Create(Instance: THandle; const ResName: WideString;
+ ResType: PWideChar);
+begin
+ inherited Create;
+ Initialize(Instance, PWideChar(ResName), ResType);
+end;
+
+constructor TTntResourceStream.CreateFromID(Instance: THandle; ResID: Word;
+ ResType: PWideChar);
+begin
+ inherited Create;
+ Initialize(Instance, PWideChar(ResID), ResType);
+end;
+
+procedure TTntResourceStream.Initialize(Instance: THandle; Name, ResType: PWideChar);
+
+ procedure Error;
+ begin
+ raise EResNotFound.CreateFmt(SResNotFound, [Name]);
+ end;
+
+begin
+ HResInfo := FindResourceW(Instance, Name, ResType);
+ if HResInfo = 0 then Error;
+ HGlobal := LoadResource(Instance, HResInfo);
+ if HGlobal = 0 then Error;
+ SetPointer(LockResource(HGlobal), SizeOfResource(Instance, HResInfo));
+end;
+
+destructor TTntResourceStream.Destroy;
+begin
+ UnlockResource(HGlobal);
+ FreeResource(HGlobal); { Technically this is not necessary (MS KB #193678) }
+ inherited Destroy;
+end;
+
+function TTntResourceStream.Write(const Buffer; Count: Longint): Longint;
+begin
+ raise EStreamError.CreateRes(PResStringRec(@SCantWriteResourceStreamError));
+end;
+
+procedure TTntResourceStream.SaveToFile(const FileName: WideString);
+var
+ Stream: TStream;
+begin
+ Stream := TTntFileStream.Create(FileName, fmCreate);
+ try
+ SaveToStream(Stream);
+ finally
+ Stream.Free;
+ end;
+end;
+
+{ TAnsiStrings }
+
+procedure TAnsiStrings{TNT-ALLOW TAnsiStrings}.LoadFromFile(const FileName: WideString);
+var
+ Stream: TStream;
+begin
+ Stream := TTntFileStream.Create(FileName, fmOpenRead or fmShareDenyWrite);
+ try
+ LoadFromStream(Stream);
+ finally
+ Stream.Free;
+ end;
+end;
+
+procedure TAnsiStrings{TNT-ALLOW TAnsiStrings}.SaveToFile(const FileName: WideString);
+var
+ Stream: TStream;
+begin
+ Stream := TTntFileStream.Create(FileName, fmCreate);
+ try
+ SaveToStream(Stream);
+ finally
+ Stream.Free;
+ end;
+end;
+
+procedure TAnsiStrings{TNT-ALLOW TAnsiStrings}.LoadFromFileEx(const FileName: WideString; CodePage: Cardinal);
+var
+ Stream: TStream;
+begin
+ Stream := TTntFileStream.Create(FileName, fmOpenRead or fmShareDenyWrite);
+ try
+ LoadFromStreamEx(Stream, CodePage);
+ finally
+ Stream.Free;
+ end;
+end;
+
+procedure TAnsiStrings{TNT-ALLOW TAnsiStrings}.SaveToFileEx(const FileName: WideString; CodePage: Cardinal);
+var
+ Stream: TStream;
+ Utf8BomPtr: PAnsiChar;
+begin
+ Stream := TTntFileStream.Create(FileName, fmCreate);
+ try
+ if (CodePage = CP_UTF8) then
+ begin
+ Utf8BomPtr := PAnsiChar(UTF8_BOM);
+ Stream.WriteBuffer(Utf8BomPtr^, Length(UTF8_BOM));
+ end;
+ SaveToStreamEx(Stream, CodePage);
+ finally
+ Stream.Free;
+ end;
+end;
+
+{ TAnsiStringsForWideStringsAdapter }
+
+constructor TAnsiStringsForWideStringsAdapter.Create(AWideStrings: TTntStrings; _AdapterCodePage: Cardinal);
+begin
+ inherited Create;
+ FWideStrings := AWideStrings;
+ FAdapterCodePage := _AdapterCodePage;
+end;
+
+function TAnsiStringsForWideStringsAdapter.AdapterCodePage: Cardinal;
+begin
+ if FAdapterCodePage = 0 then
+ Result := TntSystem.DefaultSystemCodePage
+ else
+ Result := FAdapterCodePage;
+end;
+
+procedure TAnsiStringsForWideStringsAdapter.Clear;
+begin
+ FWideStrings.Clear;
+end;
+
+procedure TAnsiStringsForWideStringsAdapter.Delete(Index: Integer);
+begin
+ FWideStrings.Delete(Index);
+end;
+
+function TAnsiStringsForWideStringsAdapter.Get(Index: Integer): AnsiString;
+begin
+ Result := WideStringToStringEx(FWideStrings.Get(Index), AdapterCodePage);
+end;
+
+procedure TAnsiStringsForWideStringsAdapter.Put(Index: Integer; const S: AnsiString);
+begin
+ FWideStrings.Put(Index, StringToWideStringEx(S, AdapterCodePage));
+end;
+
+function TAnsiStringsForWideStringsAdapter.GetCount: Integer;
+begin
+ Result := FWideStrings.GetCount;
+end;
+
+procedure TAnsiStringsForWideStringsAdapter.Insert(Index: Integer; const S: AnsiString);
+begin
+ FWideStrings.Insert(Index, StringToWideStringEx(S, AdapterCodePage));
+end;
+
+function TAnsiStringsForWideStringsAdapter.GetObject(Index: Integer): TObject;
+begin
+ Result := FWideStrings.GetObject(Index);
+end;
+
+procedure TAnsiStringsForWideStringsAdapter.PutObject(Index: Integer; AObject: TObject);
+begin
+ FWideStrings.PutObject(Index, AObject);
+end;
+
+procedure TAnsiStringsForWideStringsAdapter.SetUpdateState(Updating: Boolean);
+begin
+ FWideStrings.SetUpdateState(Updating);
+end;
+
+procedure TAnsiStringsForWideStringsAdapter.LoadFromStreamEx(Stream: TStream; CodePage: Cardinal);
+var
+ Size: Integer;
+ S: AnsiString;
+begin
+ BeginUpdate;
+ try
+ Size := Stream.Size - Stream.Position;
+ SetString(S, nil, Size);
+ Stream.Read(Pointer(S)^, Size);
+ FWideStrings.SetTextStr(StringToWideStringEx(S, CodePage));
+ finally
+ EndUpdate;
+ end;
+end;
+
+procedure TAnsiStringsForWideStringsAdapter.SaveToStreamEx(Stream: TStream; CodePage: Cardinal);
+var
+ S: AnsiString;
+begin
+ S := WideStringToStringEx(FWideStrings.GetTextStr, CodePage);
+ Stream.WriteBuffer(Pointer(S)^, Length(S));
+end;
+
+{ TTntStrings }
+
+constructor TTntStrings.Create;
+begin
+ inherited;
+ FAnsiStrings := TAnsiStringsForWideStringsAdapter.Create(Self);
+ FLastFileCharSet := csUnicode;
+end;
+
+destructor TTntStrings.Destroy;
+begin
+ FreeAndNil(FAnsiStrings);
+ inherited;
+end;
+
+procedure TTntStrings.SetAnsiStrings(const Value: TAnsiStrings{TNT-ALLOW TAnsiStrings});
+begin
+ FAnsiStrings.Assign(Value);
+end;
+
+procedure TTntStrings.DefineProperties(Filer: TFiler);
+
+ {$IFNDEF COMPILER_7_UP}
+ function DoWrite: Boolean;
+ begin
+ if Filer.Ancestor <> nil then
+ begin
+ Result := True;
+ if Filer.Ancestor is TWideStrings then
+ Result := not Equals(TWideStrings(Filer.Ancestor))
+ end
+ else Result := Count > 0;
+ end;
+
+ function DoWriteAsUTF7: Boolean;
+ var
+ i: integer;
+ begin
+ Result := False;
+ for i := 0 to Count - 1 do begin
+ if (Strings[i] <> '') and (WideStringToUTF8(Strings[i]) <> Strings[i]) then begin
+ Result := True;
+ break; { found a string with non-ASCII chars (> 127) }
+ end;
+ end;
+ end;
+ {$ENDIF}
+
+begin
+ inherited DefineProperties(Filer); { Handles main 'Strings' property.' }
+ Filer.DefineProperty('WideStrings', ReadData, nil, False);
+ Filer.DefineProperty('WideStringsW', ReadDataUTF8, nil, False);
+ {$IFDEF COMPILER_7_UP}
+ Filer.DefineProperty('WideStrings_UTF7', ReadDataUTF7, WriteDataUTF7, False);
+ {$ELSE}
+ Filer.DefineProperty('WideStrings_UTF7', ReadDataUTF7, WriteDataUTF7, DoWrite and DoWriteAsUTF7);
+ {$ENDIF}
+end;
+
+procedure TTntStrings.LoadFromFile(const FileName: WideString);
+var
+ Stream: TStream;
+begin
+ Stream := TTntFileStream.Create(FileName, fmOpenRead or fmShareDenyWrite);
+ try
+ FLastFileCharSet := AutoDetectCharacterSet(Stream);
+ Stream.Position := 0;
+ LoadFromStream(Stream);
+ finally
+ Stream.Free;
+ end;
+end;
+
+procedure TTntStrings.LoadFromStream(Stream: TStream);
+begin
+ LoadFromStream_BOM(Stream, True);
+end;
+
+procedure TTntStrings.LoadFromStream_BOM(Stream: TStream; WithBOM: Boolean);
+var
+ DataLeft: Integer;
+ StreamCharSet: TTntStreamCharSet;
+ SW: WideString;
+ SA: AnsiString;
+begin
+ BeginUpdate;
+ try
+ if WithBOM then
+ StreamCharSet := AutoDetectCharacterSet(Stream)
+ else
+ StreamCharSet := csUnicode;
+ DataLeft := Stream.Size - Stream.Position;
+ if (StreamCharSet in [csUnicode, csUnicodeSwapped]) then
+ begin
+ // BOM indicates Unicode text stream
+ if DataLeft < SizeOf(WideChar) then
+ SW := ''
+ else begin
+ SetLength(SW, DataLeft div SizeOf(WideChar));
+ Stream.Read(PWideChar(SW)^, DataLeft);
+ if StreamCharSet = csUnicodeSwapped then
+ StrSwapByteOrder(PWideChar(SW));
+ end;
+ SetTextStr(SW);
+ end
+ else if StreamCharSet = csUtf8 then
+ begin
+ // BOM indicates UTF-8 text stream
+ SetLength(SA, DataLeft div SizeOf(AnsiChar));
+ Stream.Read(PAnsiChar(SA)^, DataLeft);
+ SetTextStr(UTF8ToWideString(SA));
+ end
+ else
+ begin
+ // without byte order mark it is assumed that we are loading ANSI text
+ SetLength(SA, DataLeft div SizeOf(AnsiChar));
+ Stream.Read(PAnsiChar(SA)^, DataLeft);
+ SetTextStr(SA);
+ end;
+ finally
+ EndUpdate;
+ end;
+end;
+
+procedure TTntStrings.ReadData(Reader: TReader);
+begin
+ if Reader.NextValue in [vaString, vaLString] then
+ SetTextStr(Reader.ReadString) {JCL compatiblity}
+ else if Reader.NextValue = vaWString then
+ SetTextStr(Reader.ReadWideString) {JCL compatiblity}
+ else begin
+ BeginUpdate;
+ try
+ Clear;
+ Reader.ReadListBegin;
+ while not Reader.EndOfList do
+ if Reader.NextValue in [vaString, vaLString] then
+ Add(Reader.ReadString) {TStrings compatiblity}
+ else
+ Add(Reader.ReadWideString);
+ Reader.ReadListEnd;
+ finally
+ EndUpdate;
+ end;
+ end;
+end;
+
+procedure TTntStrings.ReadDataUTF7(Reader: TReader);
+begin
+ Reader.ReadListBegin;
+ if ReaderNeedsUtfHelp(Reader) then
+ begin
+ BeginUpdate;
+ try
+ Clear;
+ while not Reader.EndOfList do
+ Add(UTF7ToWideString(Reader.ReadString))
+ finally
+ EndUpdate;
+ end;
+ end else begin
+ while not Reader.EndOfList do
+ Reader.ReadString; { do nothing with Result }
+ end;
+ Reader.ReadListEnd;
+end;
+
+procedure TTntStrings.ReadDataUTF8(Reader: TReader);
+begin
+ Reader.ReadListBegin;
+ if ReaderNeedsUtfHelp(Reader)
+ or (Count = 0){ Legacy support where 'WideStrings' was never written in lieu of WideStringsW }
+ then begin
+ BeginUpdate;
+ try
+ Clear;
+ while not Reader.EndOfList do
+ Add(UTF8ToWideString(Reader.ReadString))
+ finally
+ EndUpdate;
+ end;
+ end else begin
+ while not Reader.EndOfList do
+ Reader.ReadString; { do nothing with Result }
+ end;
+ Reader.ReadListEnd;
+end;
+
+procedure TTntStrings.SaveToFile(const FileName: WideString);
+var
+ Stream: TStream;
+begin
+ Stream := TTntFileStream.Create(FileName, fmCreate);
+ try
+ SaveToStream(Stream);
+ finally
+ Stream.Free;
+ end;
+end;
+
+procedure TTntStrings.SaveToStream(Stream: TStream);
+begin
+ SaveToStream_BOM(Stream, True);
+end;
+
+procedure TTntStrings.SaveToStream_BOM(Stream: TStream; WithBOM: Boolean);
+// Saves the currently loaded text into the given stream.
+// WithBOM determines whether to write a byte order mark or not.
+var
+ SW: WideString;
+ BOM: WideChar;
+begin
+ if WithBOM then begin
+ BOM := UNICODE_BOM;
+ Stream.WriteBuffer(BOM, SizeOf(WideChar));
+ end;
+ SW := GetTextStr;
+ Stream.WriteBuffer(PWideChar(SW)^, Length(SW) * SizeOf(WideChar));
+end;
+
+procedure TTntStrings.WriteDataUTF7(Writer: TWriter);
+var
+ I: Integer;
+begin
+ Writer.WriteListBegin;
+ for I := 0 to Count-1 do
+ Writer.WriteString(WideStringToUTF7(Get(I)));
+ Writer.WriteListEnd;
+end;
+
+{ TTntStringList }
+
+destructor TTntStringList.Destroy;
+begin
+ FOnChange := nil;
+ FOnChanging := nil;
+ inherited Destroy;
+ if FCount <> 0 then Finalize(FList^[0], FCount);
+ FCount := 0;
+ SetCapacity(0);
+end;
+
+function TTntStringList.Add(const S: WideString): Integer;
+begin
+ Result := AddObject(S, nil);
+end;
+
+function TTntStringList.AddObject(const S: WideString; AObject: TObject): Integer;
+begin
+ if not Sorted then
+ Result := FCount
+ else
+ if Find(S, Result) then
+ case Duplicates of
+ dupIgnore: Exit;
+ dupError: Error(PResStringRec(@SDuplicateString), 0);
+ end;
+ InsertItem(Result, S, AObject);
+end;
+
+procedure TTntStringList.Changed;
+begin
+ if (not FUpdating) and Assigned(FOnChange) then
+ FOnChange(Self);
+end;
+
+procedure TTntStringList.Changing;
+begin
+ if (not FUpdating) and Assigned(FOnChanging) then
+ FOnChanging(Self);
+end;
+
+procedure TTntStringList.Clear;
+begin
+ if FCount <> 0 then
+ begin
+ Changing;
+ Finalize(FList^[0], FCount);
+ FCount := 0;
+ SetCapacity(0);
+ Changed;
+ end;
+end;
+
+procedure TTntStringList.Delete(Index: Integer);
+begin
+ if (Index < 0) or (Index >= FCount) then Error(PResStringRec(@SListIndexError), Index);
+ Changing;
+ Finalize(FList^[Index]);
+ Dec(FCount);
+ if Index < FCount then
+ System.Move(FList^[Index + 1], FList^[Index],
+ (FCount - Index) * SizeOf(TWideStringItem));
+ Changed;
+end;
+
+procedure TTntStringList.Exchange(Index1, Index2: Integer);
+begin
+ if (Index1 < 0) or (Index1 >= FCount) then Error(PResStringRec(@SListIndexError), Index1);
+ if (Index2 < 0) or (Index2 >= FCount) then Error(PResStringRec(@SListIndexError), Index2);
+ Changing;
+ ExchangeItems(Index1, Index2);
+ Changed;
+end;
+
+procedure TTntStringList.ExchangeItems(Index1, Index2: Integer);
+var
+ Temp: Integer;
+ Item1, Item2: PWideStringItem;
+begin
+ Item1 := @FList^[Index1];
+ Item2 := @FList^[Index2];
+ Temp := Integer(Item1^.FString);
+ Integer(Item1^.FString) := Integer(Item2^.FString);
+ Integer(Item2^.FString) := Temp;
+ Temp := Integer(Item1^.FObject);
+ Integer(Item1^.FObject) := Integer(Item2^.FObject);
+ Integer(Item2^.FObject) := Temp;
+end;
+
+function TTntStringList.Find(const S: WideString; var Index: Integer): Boolean;
+var
+ L, H, I, C: Integer;
+begin
+ Result := False;
+ L := 0;
+ H := FCount - 1;
+ while L <= H do
+ begin
+ I := (L + H) shr 1;
+ C := CompareStrings(FList^[I].FString, S);
+ if C < 0 then L := I + 1 else
+ begin
+ H := I - 1;
+ if C = 0 then
+ begin
+ Result := True;
+ if Duplicates <> dupAccept then L := I;
+ end;
+ end;
+ end;
+ Index := L;
+end;
+
+function TTntStringList.Get(Index: Integer): WideString;
+begin
+ if (Index < 0) or (Index >= FCount) then Error(PResStringRec(@SListIndexError), Index);
+ Result := FList^[Index].FString;
+end;
+
+function TTntStringList.GetCapacity: Integer;
+begin
+ Result := FCapacity;
+end;
+
+function TTntStringList.GetCount: Integer;
+begin
+ Result := FCount;
+end;
+
+function TTntStringList.GetObject(Index: Integer): TObject;
+begin
+ if (Index < 0) or (Index >= FCount) then Error(PResStringRec(@SListIndexError), Index);
+ Result := FList^[Index].FObject;
+end;
+
+procedure TTntStringList.Grow;
+var
+ Delta: Integer;
+begin
+ if FCapacity > 64 then Delta := FCapacity div 4 else
+ if FCapacity > 8 then Delta := 16 else
+ Delta := 4;
+ SetCapacity(FCapacity + Delta);
+end;
+
+function TTntStringList.IndexOf(const S: WideString): Integer;
+begin
+ if not Sorted then Result := inherited IndexOf(S) else
+ if not Find(S, Result) then Result := -1;
+end;
+
+function TTntStringList.IndexOfName(const Name: WideString): Integer;
+var
+ NameKey: WideString;
+begin
+ if not Sorted then
+ Result := inherited IndexOfName(Name)
+ else begin
+ // use sort to find index more quickly
+ NameKey := Name + NameValueSeparator;
+ Find(NameKey, Result);
+ if (Result < 0) or (Result > Count - 1) then
+ Result := -1
+ else if CompareStrings(NameKey, Copy(Strings[Result], 1, Length(NameKey))) <> 0 then
+ Result := -1
+ end;
+end;
+
+procedure TTntStringList.Insert(Index: Integer; const S: WideString);
+begin
+ InsertObject(Index, S, nil);
+end;
+
+procedure TTntStringList.InsertObject(Index: Integer; const S: WideString;
+ AObject: TObject);
+begin
+ if Sorted then Error(PResStringRec(@SSortedListError), 0);
+ if (Index < 0) or (Index > FCount) then Error(PResStringRec(@SListIndexError), Index);
+ InsertItem(Index, S, AObject);
+end;
+
+procedure TTntStringList.InsertItem(Index: Integer; const S: WideString; AObject: TObject);
+begin
+ Changing;
+ if FCount = FCapacity then Grow;
+ if Index < FCount then
+ System.Move(FList^[Index], FList^[Index + 1],
+ (FCount - Index) * SizeOf(TWideStringItem));
+ with FList^[Index] do
+ begin
+ Pointer(FString) := nil;
+ FObject := AObject;
+ FString := S;
+ end;
+ Inc(FCount);
+ Changed;
+end;
+
+procedure TTntStringList.Put(Index: Integer; const S: WideString);
+begin
+ if Sorted then Error(PResStringRec(@SSortedListError), 0);
+ if (Index < 0) or (Index >= FCount) then Error(PResStringRec(@SListIndexError), Index);
+ Changing;
+ FList^[Index].FString := S;
+ Changed;
+end;
+
+procedure TTntStringList.PutObject(Index: Integer; AObject: TObject);
+begin
+ if (Index < 0) or (Index >= FCount) then Error(PResStringRec(@SListIndexError), Index);
+ Changing;
+ FList^[Index].FObject := AObject;
+ Changed;
+end;
+
+procedure TTntStringList.QuickSort(L, R: Integer; SCompare: TWideStringListSortCompare);
+var
+ I, J, P: Integer;
+begin
+ repeat
+ I := L;
+ J := R;
+ P := (L + R) shr 1;
+ repeat
+ while SCompare(Self, I, P) < 0 do Inc(I);
+ while SCompare(Self, J, P) > 0 do Dec(J);
+ if I <= J then
+ begin
+ ExchangeItems(I, J);
+ if P = I then
+ P := J
+ else if P = J then
+ P := I;
+ Inc(I);
+ Dec(J);
+ end;
+ until I > J;
+ if L < J then QuickSort(L, J, SCompare);
+ L := I;
+ until I >= R;
+end;
+
+procedure TTntStringList.SetCapacity(NewCapacity: Integer);
+begin
+ ReallocMem(FList, NewCapacity * SizeOf(TWideStringItem));
+ FCapacity := NewCapacity;
+end;
+
+procedure TTntStringList.SetSorted(Value: Boolean);
+begin
+ if FSorted <> Value then
+ begin
+ if Value then Sort;
+ FSorted := Value;
+ end;
+end;
+
+procedure TTntStringList.SetUpdateState(Updating: Boolean);
+begin
+ FUpdating := Updating;
+ if Updating then Changing else Changed;
+end;
+
+function WideStringListCompareStrings(List: TTntStringList; Index1, Index2: Integer): Integer;
+begin
+ Result := List.CompareStrings(List.FList^[Index1].FString,
+ List.FList^[Index2].FString);
+end;
+
+procedure TTntStringList.Sort;
+begin
+ CustomSort(WideStringListCompareStrings);
+end;
+
+procedure TTntStringList.CustomSort(Compare: TWideStringListSortCompare);
+begin
+ if not Sorted and (FCount > 1) then
+ begin
+ Changing;
+ QuickSort(0, FCount - 1, Compare);
+ Changed;
+ end;
+end;
+
+function TTntStringList.CompareStrings(const S1, S2: WideString): Integer;
+begin
+ if CaseSensitive then
+ Result := WideCompareStr(S1, S2)
+ else
+ Result := WideCompareText(S1, S2);
+end;
+
+procedure TTntStringList.SetCaseSensitive(const Value: Boolean);
+begin
+ if Value <> FCaseSensitive then
+ begin
+ FCaseSensitive := Value;
+ if Sorted then Sort;
+ end;
+end;
+
+//------------------------- TntClasses introduced procs ----------------------------------
+
+function AutoDetectCharacterSet(Stream: TStream): TTntStreamCharSet;
+var
+ ByteOrderMark: WideChar;
+ BytesRead: Integer;
+ Utf8Test: array[0..2] of AnsiChar;
+begin
+ // Byte Order Mark
+ ByteOrderMark := #0;
+ if (Stream.Size - Stream.Position) >= SizeOf(ByteOrderMark) then begin
+ BytesRead := Stream.Read(ByteOrderMark, SizeOf(ByteOrderMark));
+ if (ByteOrderMark <> UNICODE_BOM) and (ByteOrderMark <> UNICODE_BOM_SWAPPED) then begin
+ ByteOrderMark := #0;
+ Stream.Seek(-BytesRead, soFromCurrent);
+ if (Stream.Size - Stream.Position) >= Length(Utf8Test) * SizeOf(AnsiChar) then begin
+ BytesRead := Stream.Read(Utf8Test[0], Length(Utf8Test) * SizeOf(AnsiChar));
+ if Utf8Test <> UTF8_BOM then
+ Stream.Seek(-BytesRead, soFromCurrent);
+ end;
+ end;
+ end;
+ // Test Byte Order Mark
+ if ByteOrderMark = UNICODE_BOM then
+ Result := csUnicode
+ else if ByteOrderMark = UNICODE_BOM_SWAPPED then
+ Result := csUnicodeSwapped
+ else if Utf8Test = UTF8_BOM then
+ Result := csUtf8
+ else
+ Result := csAnsi;
+end;
+
+function FindSortedListByTarget(List: TList; TargetCompare: TListTargetCompare;
+ Target: Pointer; var Index: Integer): Boolean;
+var
+ L, H, I, C: Integer;
+begin
+ Result := False;
+ L := 0;
+ H := List.Count - 1;
+ while L <= H do
+ begin
+ I := (L + H) shr 1;
+ C := TargetCompare(List[i], Target);
+ if C < 0 then L := I + 1 else
+ begin
+ H := I - 1;
+ if C = 0 then
+ begin
+ Result := True;
+ L := I;
+ end;
+ end;
+ end;
+ Index := L;
+end;
+
+function ClassIsRegistered(const clsid: TCLSID): Boolean;
+var
+ OleStr: POleStr;
+ Reg: TRegIniFile;
+ Key, Filename: WideString;
+begin
+ // First, check to see if there is a ProgID. This will tell if the
+ // control is registered on the machine. No ProgID, control won't run
+ Result := ProgIDFromCLSID(clsid, OleStr) = S_OK;
+ if not Result then Exit; //Bail as soon as anything goes wrong.
+
+ // Next, make sure that the file is actually there by rooting it out
+ // of the registry
+ Key := WideFormat('\SOFTWARE\Classes\CLSID\%s', [GUIDToString(clsid)]);
+ Reg := TRegIniFile.Create;
+ try
+ Reg.RootKey := HKEY_LOCAL_MACHINE;
+ Result := Reg.OpenKeyReadOnly(Key);
+ if not Result then Exit; // Bail as soon as anything goes wrong.
+
+ FileName := Reg.ReadString('InProcServer32', '', EmptyStr);
+ if (Filename = EmptyStr) then // try another key for the file name
+ begin
+ FileName := Reg.ReadString('InProcServer', '', EmptyStr);
+ end;
+ Result := Filename <> EmptyStr;
+ if not Result then Exit;
+ Result := WideFileExists(Filename);
+ finally
+ Reg.Free;
+ end;
+end;
+
+{ TBufferedAnsiString }
+
+procedure TBufferedAnsiString.Clear;
+begin
+ LastWriteIndex := 0;
+ if Length(FStringBuffer) > 0 then
+ FillChar(FStringBuffer[1], Length(FStringBuffer) * SizeOf(AnsiChar), 0);
+end;
+
+procedure TBufferedAnsiString.AddChar(const wc: AnsiChar);
+const
+ MIN_GROW_SIZE = 32;
+ MAX_GROW_SIZE = 256;
+var
+ GrowSize: Integer;
+begin
+ Inc(LastWriteIndex);
+ if LastWriteIndex > Length(FStringBuffer) then begin
+ GrowSize := Max(MIN_GROW_SIZE, Length(FStringBuffer));
+ GrowSize := Min(GrowSize, MAX_GROW_SIZE);
+ SetLength(FStringBuffer, Length(FStringBuffer) + GrowSize);
+ FillChar(FStringBuffer[LastWriteIndex], GrowSize * SizeOf(AnsiChar), 0);
+ end;
+ FStringBuffer[LastWriteIndex] := wc;
+end;
+
+procedure TBufferedAnsiString.AddString(const s: AnsiString);
+var
+ LenS: Integer;
+ BlockSize: Integer;
+ AllocSize: Integer;
+begin
+ LenS := Length(s);
+ if LenS > 0 then begin
+ Inc(LastWriteIndex);
+ if LastWriteIndex + LenS - 1 > Length(FStringBuffer) then begin
+ // determine optimum new allocation size
+ BlockSize := Length(FStringBuffer) div 2;
+ if BlockSize < 8 then
+ BlockSize := 8;
+ AllocSize := ((LenS div BlockSize) + 1) * BlockSize;
+ // realloc buffer
+ SetLength(FStringBuffer, Length(FStringBuffer) + AllocSize);
+ FillChar(FStringBuffer[Length(FStringBuffer) - AllocSize + 1], AllocSize * SizeOf(AnsiChar), 0);
+ end;
+ CopyMemory(@FStringBuffer[LastWriteIndex], @s[1], LenS * SizeOf(AnsiChar));
+ Inc(LastWriteIndex, LenS - 1);
+ end;
+end;
+
+procedure TBufferedAnsiString.AddBuffer(Buff: PAnsiChar; Chars: Integer);
+var
+ i: integer;
+begin
+ for i := 1 to Chars do begin
+ if Buff^ = #0 then
+ break;
+ AddChar(Buff^);
+ Inc(Buff);
+ end;
+end;
+
+function TBufferedAnsiString.Value: AnsiString;
+begin
+ Result := PAnsiChar(FStringBuffer);
+end;
+
+function TBufferedAnsiString.BuffPtr: PAnsiChar;
+begin
+ Result := PAnsiChar(FStringBuffer);
+end;
+
+{ TBufferedWideString }
+
+procedure TBufferedWideString.Clear;
+begin
+ LastWriteIndex := 0;
+ if Length(FStringBuffer) > 0 then
+ FillChar(FStringBuffer[1], Length(FStringBuffer) * SizeOf(WideChar), 0);
+end;
+
+procedure TBufferedWideString.AddChar(const wc: WideChar);
+const
+ MIN_GROW_SIZE = 32;
+ MAX_GROW_SIZE = 256;
+var
+ GrowSize: Integer;
+begin
+ Inc(LastWriteIndex);
+ if LastWriteIndex > Length(FStringBuffer) then begin
+ GrowSize := Max(MIN_GROW_SIZE, Length(FStringBuffer));
+ GrowSize := Min(GrowSize, MAX_GROW_SIZE);
+ SetLength(FStringBuffer, Length(FStringBuffer) + GrowSize);
+ FillChar(FStringBuffer[LastWriteIndex], GrowSize * SizeOf(WideChar), 0);
+ end;
+ FStringBuffer[LastWriteIndex] := wc;
+end;
+
+procedure TBufferedWideString.AddString(const s: WideString);
+var
+ i: integer;
+begin
+ for i := 1 to Length(s) do
+ AddChar(s[i]);
+end;
+
+procedure TBufferedWideString.AddBuffer(Buff: PWideChar; Chars: Integer);
+var
+ i: integer;
+begin
+ for i := 1 to Chars do begin
+ if Buff^ = #0 then
+ break;
+ AddChar(Buff^);
+ Inc(Buff);
+ end;
+end;
+
+function TBufferedWideString.Value: WideString;
+begin
+ Result := PWideChar(FStringBuffer);
+end;
+
+function TBufferedWideString.BuffPtr: PWideChar;
+begin
+ Result := PWideChar(FStringBuffer);
+end;
+
+{ TBufferedStreamReader }
+
+constructor TBufferedStreamReader.Create(Stream: TStream; BufferSize: Integer = 1024);
+begin
+ // init stream
+ FStream := Stream;
+ FStreamSize := Stream.Size;
+ // init buffer
+ FBufferSize := BufferSize;
+ SetLength(FBuffer, BufferSize);
+ FBufferStartPosition := -FBufferSize; { out of any useful range }
+ // init virtual position
+ FVirtualPosition := 0;
+end;
+
+function TBufferedStreamReader.Seek(Offset: Integer; Origin: Word): Longint;
+begin
+ case Origin of
+ soFromBeginning: FVirtualPosition := Offset;
+ soFromCurrent: Inc(FVirtualPosition, Offset);
+ soFromEnd: FVirtualPosition := FStreamSize + Offset;
+ end;
+ Result := FVirtualPosition;
+end;
+
+procedure TBufferedStreamReader.UpdateBufferFromPosition(StartPos: Integer);
+begin
+ try
+ FStream.Position := StartPos;
+ FStream.Read(FBuffer[0], FBufferSize);
+ FBufferStartPosition := StartPos;
+ except
+ FBufferStartPosition := -FBufferSize; { out of any useful range }
+ raise;
+ end;
+end;
+
+function TBufferedStreamReader.Read(var Buffer; Count: Integer): Longint;
+var
+ BytesLeft: Integer;
+ FirstBufferRead: Integer;
+ StreamDirectRead: Integer;
+ Buf: PAnsiChar;
+begin
+ if (FVirtualPosition >= 0) and (Count >= 0) then
+ begin
+ Result := FStreamSize - FVirtualPosition;
+ if Result > 0 then
+ begin
+ if Result > Count then
+ Result := Count;
+
+ Buf := @Buffer;
+ BytesLeft := Result;
+
+ // try to read what is left in buffer
+ FirstBufferRead := FBufferStartPosition + FBufferSize - FVirtualPosition;
+ if (FirstBufferRead < 0) or (FirstBufferRead > FBufferSize) then
+ FirstBufferRead := 0;
+ FirstBufferRead := Min(FirstBufferRead, Result);
+ if FirstBufferRead > 0 then begin
+ Move(FBuffer[FVirtualPosition - FBufferStartPosition], Buf[0], FirstBufferRead);
+ Dec(BytesLeft, FirstBufferRead);
+ end;
+
+ if BytesLeft > 0 then begin
+ // The first read in buffer was not enough
+ StreamDirectRead := (BytesLeft div FBufferSize) * FBufferSize;
+ FStream.Position := FVirtualPosition + FirstBufferRead;
+ FStream.Read(Buf[FirstBufferRead], StreamDirectRead);
+ Dec(BytesLeft, StreamDirectRead);
+
+ if BytesLeft > 0 then begin
+ // update buffer, and read what is left
+ UpdateBufferFromPosition(FStream.Position);
+ Move(FBuffer[0], Buf[FirstBufferRead + StreamDirectRead], BytesLeft);
+ end;
+ end;
+
+ Inc(FVirtualPosition, Result);
+ Exit;
+ end;
+ end;
+ Result := 0;
+end;
+
+function TBufferedStreamReader.Write(const Buffer; Count: Integer): Longint;
+begin
+ raise ETntInternalError.Create('Internal Error: class can not write.');
+ Result := 0;
+end;
+
+//-------- synced wide string -----------------
+
+function GetSyncedWideString(var WideStr: WideString; const AnsiStr: AnsiString): WideString;
+begin
+ if AnsiString(WideStr) <> (AnsiStr) then begin
+ WideStr := AnsiStr; {AnsiStr changed. Keep WideStr in sync.}
+ end;
+ Result := WideStr;
+end;
+
+procedure SetSyncedWideString(const Value: WideString; var WideStr: WideString;
+ const AnsiStr: AnsiString; SetAnsiStr: TSetAnsiStrEvent);
+begin
+ if Value <> GetSyncedWideString(WideStr, AnsiStr) then
+ begin
+ if (not WideSameStr(Value, AnsiString(Value))) {unicode chars lost in conversion}
+ and (AnsiStr = AnsiString(Value)) {AnsiStr is not going to change}
+ then begin
+ SetAnsiStr(''); {force the change}
+ end;
+ WideStr := Value;
+ SetAnsiStr(Value);
+ end;
+end;
+
+{ TWideComponentHelper }
+
+function CompareComponentHelperToTarget(Item, Target: Pointer): Integer;
+begin
+ if PtrUInt(TWideComponentHelper(Item).FComponent) < PtrUInt(Target) then
+ Result := -1
+ else if PtrUInt(TWideComponentHelper(Item).FComponent) > PtrUInt(Target) then
+ Result := 1
+ else
+ Result := 0;
+end;
+
+function FindWideComponentHelperIndex(ComponentHelperList: TComponentList; Component: TComponent; var Index: Integer): Boolean;
+begin
+ // find Component in sorted wide caption list (list is sorted by TWideComponentHelper.FComponent)
+ Result := FindSortedListByTarget(ComponentHelperList, CompareComponentHelperToTarget, Component, Index);
+end;
+
+constructor TWideComponentHelper.Create(AOwner: TComponent);
+begin
+ raise ETntInternalError.Create('TNT Internal Error: TWideComponentHelper.Create should never be encountered.');
+end;
+
+constructor TWideComponentHelper.CreateHelper(AOwner: TComponent; ComponentHelperList: TComponentList);
+var
+ Index: Integer;
+begin
+ // don't use direct ownership for memory management
+ inherited Create(nil);
+ FComponent := AOwner;
+ FComponent.FreeNotification(Self);
+
+ // insert into list according to sort
+ FindWideComponentHelperIndex(ComponentHelperList, FComponent, Index);
+ ComponentHelperList.Insert(Index, Self);
+end;
+
+procedure TWideComponentHelper.Notification(AComponent: TComponent; Operation: TOperation);
+begin
+ inherited;
+ if (AComponent = FComponent) and (Operation = opRemove) then begin
+ FComponent := nil;
+ Free;
+ end;
+end;
+
+function FindWideComponentHelper(ComponentHelperList: TComponentList; Component: TComponent): TWideComponentHelper;
+var
+ Index: integer;
+begin
+ if FindWideComponentHelperIndex(ComponentHelperList, Component, Index) then begin
+ Result := TWideComponentHelper(ComponentHelperList[Index]);
+ Assert(Result.FComponent = Component, 'TNT Internal Error: FindWideComponentHelperIndex failed.');
+ end else
+ Result := nil;
+end;
+
+initialization
+ RuntimeUTFStreaming := False; { Delphi 6 and higher don't need UTF help at runtime. }
+
+end.
diff --git a/src/lib/TntUnicodeControls/TntFormatStrUtils.pas b/src/lib/TntUnicodeControls/TntFormatStrUtils.pas
index 80aefd4a..a5ea0868 100644
--- a/src/lib/TntUnicodeControls/TntFormatStrUtils.pas
+++ b/src/lib/TntUnicodeControls/TntFormatStrUtils.pas
@@ -1,521 +1,521 @@
-
-{*****************************************************************************}
-{ }
-{ Tnt Delphi Unicode Controls }
-{ http://www.tntware.com/delphicontrols/unicode/ }
-{ Version: 2.3.0 }
-{ }
-{ Copyright (c) 2002-2007, Troy Wolbrink (troy.wolbrink@tntware.com) }
-{ }
-{*****************************************************************************}
-
-unit TntFormatStrUtils;
-
-{$IFDEF FPC}
- {$MODE Delphi}
-{$ENDIF}
-
-{$INCLUDE TntCompilers.inc}
-
-interface
-
-// this unit provides functions to work with format strings
-
-uses
- TntSysUtils;
-
-function GetCanonicalFormatStr(const _FormatString: WideString): WideString;
-
-{$IFNDEF FPC}
-{$IFNDEF COMPILER_9_UP}
-function ReplaceFloatingArgumentsInFormatString(const _FormatString: WideString;
- const Args: array of const
- {$IFDEF COMPILER_7_UP}; FormatSettings: PFormatSettings{$ENDIF}): WideString;
-{$ENDIF}
-{$ENDIF}
-procedure CompareFormatStrings(FormatStr1, FormatStr2: WideString);
-function FormatStringsAreCompatible(FormatStr1, FormatStr2: WideString): Boolean;
-
-type
- EFormatSpecError = class(ETntGeneralError);
-
-implementation
-
-uses
- SysUtils, Math, TntClasses;
-
-resourcestring
- SInvalidFormatSpecifier = 'Invalid Format Specifier: %s';
- SMismatchedArgumentTypes = 'Argument types for index %d do not match. (%s <> %s)';
- SMismatchedArgumentCounts = 'Number of format specifiers do not match.';
-
-type
- TFormatSpecifierType = (fstInteger, fstFloating, fstPointer, fstString);
-
-function GetFormatSpecifierType(const FormatSpecifier: WideString): TFormatSpecifierType;
-var
- LastChar: WideChar;
-begin
- LastChar := TntWideLastChar(FormatSpecifier);
- case LastChar of
- 'd', 'D', 'u', 'U', 'x', 'X':
- result := fstInteger;
- 'e', 'E', 'f', 'F', 'g', 'G', 'n', 'N', 'm', 'M':
- result := fstFloating;
- 'p', 'P':
- result := fstPointer;
- 's', 'S':
- result := fstString
- else
- raise ETntInternalError.CreateFmt('Internal Error: Unexpected format type (%s)', [LastChar]);
- end;
-end;
-
-type
- TFormatStrParser = class(TObject)
- private
- ParsedString: TBufferedWideString;
- PFormatString: PWideChar;
- LastIndex: Integer;
- ExplicitCount: Integer;
- ImplicitCount: Integer;
- procedure RaiseInvalidFormatSpecifier;
- function ParseChar(c: WideChar): Boolean;
- procedure ForceParseChar(c: WideChar);
- function ParseDigit: Boolean;
- function ParseInteger: Boolean;
- procedure ForceParseType;
- function PeekDigit: Boolean;
- function PeekIndexSpecifier(out Index: Integer): Boolean;
- public
- constructor Create(const _FormatString: WideString);
- destructor Destroy; override;
- function ParseFormatSpecifier: Boolean;
- end;
-
-constructor TFormatStrParser.Create(const _FormatString: WideString);
-begin
- inherited Create;
- PFormatString := PWideChar(_FormatString);
- ExplicitCount := 0;
- ImplicitCount := 0;
- LastIndex := -1;
- ParsedString := TBufferedWideString.Create;
-end;
-
-destructor TFormatStrParser.Destroy;
-begin
- FreeAndNil(ParsedString);
- inherited;
-end;
-
-procedure TFormatStrParser.RaiseInvalidFormatSpecifier;
-begin
- raise EFormatSpecError.CreateFmt(SInvalidFormatSpecifier, [ParsedString.Value + PFormatString]);
-end;
-
-function TFormatStrParser.ParseChar(c: WideChar): Boolean;
-begin
- result := False;
- if PFormatString^ = c then begin
- result := True;
- ParsedString.AddChar(c);
- Inc(PFormatString);
- end;
-end;
-
-procedure TFormatStrParser.ForceParseChar(c: WideChar);
-begin
- if not ParseChar(c) then
- RaiseInvalidFormatSpecifier;
-end;
-
-function TFormatStrParser.PeekDigit: Boolean;
-begin
- result := False;
- if (PFormatString^ <> #0)
- and (PFormatString^ >= '0')
- and (PFormatString^ <= '9') then
- result := True;
-end;
-
-function TFormatStrParser.ParseDigit: Boolean;
-begin
- result := False;
- if PeekDigit then begin
- result := True;
- ForceParseChar(PFormatString^);
- end;
-end;
-
-function TFormatStrParser.ParseInteger: Boolean;
-const
- MAX_INT_DIGITS = 6;
-var
- digitcount: integer;
-begin
- digitcount := 0;
- While ParseDigit do begin
- inc(digitcount);
- end;
- result := (digitcount > 0);
- if digitcount > MAX_INT_DIGITS then
- RaiseInvalidFormatSpecifier;
-end;
-
-procedure TFormatStrParser.ForceParseType;
-begin
- if PFormatString^ = #0 then
- RaiseInvalidFormatSpecifier;
-
- case PFormatString^ of
- 'd', 'u', 'x', 'e', 'f', 'g', 'n', 'm', 'p', 's',
- 'D', 'U', 'X', 'E', 'F', 'G', 'N', 'M', 'P', 'S':
- begin
- // do nothing
- end
- else
- RaiseInvalidFormatSpecifier;
- end;
- ForceParseChar(PFormatString^);
-end;
-
-function TFormatStrParser.PeekIndexSpecifier(out Index: Integer): Boolean;
-var
- SaveParsedString: WideString;
- SaveFormatString: PWideChar;
-begin
- SaveParsedString := ParsedString.Value;
- SaveFormatString := PFormatString;
- try
- ParsedString.Clear;
- Result := False;
- Index := -1;
- if ParseInteger then begin
- Index := StrToInt(ParsedString.Value);
- if ParseChar(':') then
- Result := True;
- end;
- finally
- ParsedString.Clear;
- ParsedString.AddString(SaveParsedString);
- PFormatString := SaveFormatString;
- end;
-end;
-
-function TFormatStrParser.ParseFormatSpecifier: Boolean;
-var
- ExplicitIndex: Integer;
-begin
- Result := False;
- // Parse entire format specifier
- ForceParseChar('%');
- if (PFormatString^ <> #0)
- and (not ParseChar(' '))
- and (not ParseChar('%')) then begin
- if PeekIndexSpecifier(ExplicitIndex) then begin
- Inc(ExplicitCount);
- LastIndex := Max(LastIndex, ExplicitIndex);
- end else begin
- Inc(ImplicitCount);
- Inc(LastIndex);
- ParsedString.AddString(IntToStr(LastIndex));
- ParsedString.AddChar(':');
- end;
- if ParseChar('*') then
- begin
- Inc(ImplicitCount);
- Inc(LastIndex);
- ParseChar(':');
- end else if ParseInteger then
- ParseChar(':');
- ParseChar('-');
- if ParseChar('*') then begin
- Inc(ImplicitCount);
- Inc(LastIndex);
- end else
- ParseInteger;
- if ParseChar('.') then begin
- if not ParseChar('*') then
- ParseInteger;
- end;
- ForceParseType;
- Result := True;
- end;
-end;
-
-//-----------------------------------
-
-function GetCanonicalFormatStr(const _FormatString: WideString): WideString;
-var
- PosSpec: Integer;
-begin
- with TFormatStrParser.Create(_FormatString) do
- try
- // loop until no more '%'
- PosSpec := Pos(WideString('%'), PFormatString);
- While PosSpec <> 0 do begin
- try
- // delete everything up until '%'
- ParsedString.AddBuffer(PFormatString, PosSpec - 1);
- Inc(PFormatString, PosSpec - 1);
- // parse format specifier
- ParseFormatSpecifier;
- finally
- PosSpec := Pos(WideString('%'), PFormatString);
- end;
- end;
- if ((ExplicitCount = 0) and (ImplicitCount = 1)) {simple expression}
- or ((ExplicitCount > 0) and (ImplicitCount = 0)) {nothing converted} then
- result := _FormatString {original}
- else
- result := ParsedString.Value + PFormatString;
- finally
- Free;
- end;
-end;
-
-{$IFNDEF FPC}
-{$IFNDEF COMPILER_9_UP}
-function ReplaceFloatingArgumentsInFormatString(const _FormatString: WideString;
- const Args: array of const
- {$IFDEF COMPILER_7_UP}; FormatSettings: PFormatSettings{$ENDIF}): WideString;
-{ This function replaces floating point format specifiers with their actual formatted values.
- It also adds index specifiers so that the other format specifiers don't lose their place.
- The reason for this is that WideFormat doesn't correctly format floating point specifiers.
- See QC#4254. }
-var
- Parser: TFormatStrParser;
- PosSpec: Integer;
- Output: TBufferedWideString;
-begin
- Output := TBufferedWideString.Create;
- try
- Parser := TFormatStrParser.Create(_FormatString);
- with Parser do
- try
- // loop until no more '%'
- PosSpec := Pos('%', PFormatString);
- While PosSpec <> 0 do begin
- try
- // delete everything up until '%'
- Output.AddBuffer(PFormatString, PosSpec - 1);
- Inc(PFormatString, PosSpec - 1);
- // parse format specifier
- ParsedString.Clear;
- if (not ParseFormatSpecifier)
- or (GetFormatSpecifierType(ParsedString.Value) <> fstFloating) then
- Output.AddBuffer(ParsedString.BuffPtr, MaxInt)
- {$IFDEF COMPILER_7_UP}
- else if Assigned(FormatSettings) then
- Output.AddString(Format{TNT-ALLOW Format}(ParsedString.Value, Args, FormatSettings^))
- {$ENDIF}
- else
- Output.AddString(Format{TNT-ALLOW Format}(ParsedString.Value, Args));
- finally
- PosSpec := Pos('%', PFormatString);
- end;
- end;
- Output.AddString(PFormatString);
- finally
- Free;
- end;
- Result := Output.Value;
- finally
- Output.Free;
- end;
-end;
-{$ENDIF}
-{$ENDIF}
-
-procedure GetFormatArgs(const _FormatString: WideString; FormatArgs: TTntStrings);
-var
- PosSpec: Integer;
-begin
- with TFormatStrParser.Create(_FormatString) do
- try
- FormatArgs.Clear;
- // loop until no more '%'
- PosSpec := Pos(WideString('%'), PFormatString);
- While PosSpec <> 0 do begin
- try
- // delete everything up until '%'
- Inc(PFormatString, PosSpec - 1);
- // add format specifier to list
- ParsedString.Clear;
- if ParseFormatSpecifier then
- FormatArgs.Add(ParsedString.Value);
- finally
- PosSpec := Pos(WideString('%'), PFormatString);
- end;
- end;
- finally
- Free;
- end;
-end;
-
-function GetExplicitIndex(const FormatSpecifier: WideString): Integer;
-var
- IndexStr: WideString;
- PosColon: Integer;
-begin
- result := -1;
- PosColon := Pos(':', FormatSpecifier);
- if PosColon <> 0 then begin
- IndexStr := Copy(FormatSpecifier, 2, PosColon - 2);
- result := StrToInt(IndexStr);
- end;
-end;
-
-function GetMaxIndex(FormatArgs: TTntStrings): Integer;
-var
- i: integer;
- RunningIndex: Integer;
- ExplicitIndex: Integer;
-begin
- result := -1;
- RunningIndex := -1;
- for i := 0 to FormatArgs.Count - 1 do begin
- ExplicitIndex := GetExplicitIndex(FormatArgs[i]);
- if ExplicitIndex <> -1 then
- RunningIndex := ExplicitIndex
- else
- inc(RunningIndex);
- result := Max(result, RunningIndex);
- end;
-end;
-
-function FormatSpecToObject(SpecType: TFormatSpecifierType): TObject;
-begin
- {$IFNDEF FPC}
- Result := TObject(SpecType);
- {$ELSE}
- Result := Pointer(SpecType);
- {$ENDIF}
-end;
-
-procedure UpdateTypeList(FormatArgs, TypeList: TTntStrings);
-var
- i: integer;
- f: WideString;
- SpecType: TFormatSpecifierType;
- ExplicitIndex: Integer;
- MaxIndex: Integer;
- RunningIndex: Integer;
-begin
- // set count of TypeList to accomodate maximum index
- MaxIndex := GetMaxIndex(FormatArgs);
- TypeList.Clear;
- for i := 0 to MaxIndex do
- TypeList.Add('');
-
- // for each arg...
- RunningIndex := -1;
- for i := 0 to FormatArgs.Count - 1 do begin
- f := FormatArgs[i];
- ExplicitIndex := GetExplicitIndex(f);
- SpecType := GetFormatSpecifierType(f);
-
- // determine running arg index
- if ExplicitIndex <> -1 then
- RunningIndex := ExplicitIndex
- else
- inc(RunningIndex);
-
- if TypeList[RunningIndex] <> '' then begin
- // already exists in list, check for compatibility
- if TypeList.Objects[RunningIndex] <> FormatSpecToObject(SpecType) then
- raise EFormatSpecError.CreateFmt(SMismatchedArgumentTypes,
- [RunningIndex, TypeList[RunningIndex], f]);
- end else begin
- // not in list so update it
- TypeList[RunningIndex] := f;
- TypeList.Objects[RunningIndex] := FormatSpecToObject(SpecType);
- end;
- end;
-end;
-
-procedure CompareFormatStrings(FormatStr1, FormatStr2: WideString);
-var
- ArgList1: TTntStringList;
- ArgList2: TTntStringList;
- TypeList1: TTntStringList;
- TypeList2: TTntStringList;
- i: integer;
-begin
- ArgList1 := nil;
- ArgList2 := nil;
- TypeList1 := nil;
- TypeList2 := nil;
- try
- ArgList1 := TTntStringList.Create;
- ArgList2 := TTntStringList.Create;
- TypeList1 := TTntStringList.Create;
- TypeList2 := TTntStringList.Create;
-
- GetFormatArgs(FormatStr1, ArgList1);
- UpdateTypeList(ArgList1, TypeList1);
-
- GetFormatArgs(FormatStr2, ArgList2);
- UpdateTypeList(ArgList2, TypeList2);
-
- if TypeList1.Count <> TypeList2.Count then
- raise EFormatSpecError.Create(SMismatchedArgumentCounts + CRLF + CRLF + '> ' + FormatStr1 + CRLF + '> ' + FormatStr2);
-
- for i := 0 to TypeList1.Count - 1 do begin
- if TypeList1.Objects[i] <> TypeList2.Objects[i] then begin
- raise EFormatSpecError.CreateFmt(SMismatchedArgumentTypes,
- [i, TypeList1[i], TypeList2[i]]);
- end;
- end;
-
- finally
- ArgList1.Free;
- ArgList2.Free;
- TypeList1.Free;
- TypeList2.Free;
- end;
-end;
-
-function FormatStringsAreCompatible(FormatStr1, FormatStr2: WideString): Boolean;
-var
- ArgList1: TTntStringList;
- ArgList2: TTntStringList;
- TypeList1: TTntStringList;
- TypeList2: TTntStringList;
- i: integer;
-begin
- ArgList1 := nil;
- ArgList2 := nil;
- TypeList1 := nil;
- TypeList2 := nil;
- try
- ArgList1 := TTntStringList.Create;
- ArgList2 := TTntStringList.Create;
- TypeList1 := TTntStringList.Create;
- TypeList2 := TTntStringList.Create;
-
- GetFormatArgs(FormatStr1, ArgList1);
- UpdateTypeList(ArgList1, TypeList1);
-
- GetFormatArgs(FormatStr2, ArgList2);
- UpdateTypeList(ArgList2, TypeList2);
-
- Result := (TypeList1.Count = TypeList2.Count);
- if Result then begin
- for i := 0 to TypeList1.Count - 1 do begin
- if TypeList1.Objects[i] <> TypeList2.Objects[i] then begin
- Result := False;
- break;
- end;
- end;
- end;
- finally
- ArgList1.Free;
- ArgList2.Free;
- TypeList1.Free;
- TypeList2.Free;
- end;
-end;
-
-end.
+
+{*****************************************************************************}
+{ }
+{ Tnt Delphi Unicode Controls }
+{ http://www.tntware.com/delphicontrols/unicode/ }
+{ Version: 2.3.0 }
+{ }
+{ Copyright (c) 2002-2007, Troy Wolbrink (troy.wolbrink@tntware.com) }
+{ }
+{*****************************************************************************}
+
+unit TntFormatStrUtils;
+
+{$IFDEF FPC}
+ {$MODE Delphi}
+{$ENDIF}
+
+{$INCLUDE TntCompilers.inc}
+
+interface
+
+// this unit provides functions to work with format strings
+
+uses
+ TntSysUtils;
+
+function GetCanonicalFormatStr(const _FormatString: WideString): WideString;
+
+{$IFNDEF FPC}
+{$IFNDEF COMPILER_9_UP}
+function ReplaceFloatingArgumentsInFormatString(const _FormatString: WideString;
+ const Args: array of const
+ {$IFDEF COMPILER_7_UP}; FormatSettings: PFormatSettings{$ENDIF}): WideString;
+{$ENDIF}
+{$ENDIF}
+procedure CompareFormatStrings(FormatStr1, FormatStr2: WideString);
+function FormatStringsAreCompatible(FormatStr1, FormatStr2: WideString): Boolean;
+
+type
+ EFormatSpecError = class(ETntGeneralError);
+
+implementation
+
+uses
+ SysUtils, Math, TntClasses;
+
+resourcestring
+ SInvalidFormatSpecifier = 'Invalid Format Specifier: %s';
+ SMismatchedArgumentTypes = 'Argument types for index %d do not match. (%s <> %s)';
+ SMismatchedArgumentCounts = 'Number of format specifiers do not match.';
+
+type
+ TFormatSpecifierType = (fstInteger, fstFloating, fstPointer, fstString);
+
+function GetFormatSpecifierType(const FormatSpecifier: WideString): TFormatSpecifierType;
+var
+ LastChar: WideChar;
+begin
+ LastChar := TntWideLastChar(FormatSpecifier);
+ case LastChar of
+ 'd', 'D', 'u', 'U', 'x', 'X':
+ result := fstInteger;
+ 'e', 'E', 'f', 'F', 'g', 'G', 'n', 'N', 'm', 'M':
+ result := fstFloating;
+ 'p', 'P':
+ result := fstPointer;
+ 's', 'S':
+ result := fstString
+ else
+ raise ETntInternalError.CreateFmt('Internal Error: Unexpected format type (%s)', [LastChar]);
+ end;
+end;
+
+type
+ TFormatStrParser = class(TObject)
+ private
+ ParsedString: TBufferedWideString;
+ PFormatString: PWideChar;
+ LastIndex: Integer;
+ ExplicitCount: Integer;
+ ImplicitCount: Integer;
+ procedure RaiseInvalidFormatSpecifier;
+ function ParseChar(c: WideChar): Boolean;
+ procedure ForceParseChar(c: WideChar);
+ function ParseDigit: Boolean;
+ function ParseInteger: Boolean;
+ procedure ForceParseType;
+ function PeekDigit: Boolean;
+ function PeekIndexSpecifier(out Index: Integer): Boolean;
+ public
+ constructor Create(const _FormatString: WideString);
+ destructor Destroy; override;
+ function ParseFormatSpecifier: Boolean;
+ end;
+
+constructor TFormatStrParser.Create(const _FormatString: WideString);
+begin
+ inherited Create;
+ PFormatString := PWideChar(_FormatString);
+ ExplicitCount := 0;
+ ImplicitCount := 0;
+ LastIndex := -1;
+ ParsedString := TBufferedWideString.Create;
+end;
+
+destructor TFormatStrParser.Destroy;
+begin
+ FreeAndNil(ParsedString);
+ inherited;
+end;
+
+procedure TFormatStrParser.RaiseInvalidFormatSpecifier;
+begin
+ raise EFormatSpecError.CreateFmt(SInvalidFormatSpecifier, [ParsedString.Value + PFormatString]);
+end;
+
+function TFormatStrParser.ParseChar(c: WideChar): Boolean;
+begin
+ result := False;
+ if PFormatString^ = c then begin
+ result := True;
+ ParsedString.AddChar(c);
+ Inc(PFormatString);
+ end;
+end;
+
+procedure TFormatStrParser.ForceParseChar(c: WideChar);
+begin
+ if not ParseChar(c) then
+ RaiseInvalidFormatSpecifier;
+end;
+
+function TFormatStrParser.PeekDigit: Boolean;
+begin
+ result := False;
+ if (PFormatString^ <> #0)
+ and (PFormatString^ >= '0')
+ and (PFormatString^ <= '9') then
+ result := True;
+end;
+
+function TFormatStrParser.ParseDigit: Boolean;
+begin
+ result := False;
+ if PeekDigit then begin
+ result := True;
+ ForceParseChar(PFormatString^);
+ end;
+end;
+
+function TFormatStrParser.ParseInteger: Boolean;
+const
+ MAX_INT_DIGITS = 6;
+var
+ digitcount: integer;
+begin
+ digitcount := 0;
+ While ParseDigit do begin
+ inc(digitcount);
+ end;
+ result := (digitcount > 0);
+ if digitcount > MAX_INT_DIGITS then
+ RaiseInvalidFormatSpecifier;
+end;
+
+procedure TFormatStrParser.ForceParseType;
+begin
+ if PFormatString^ = #0 then
+ RaiseInvalidFormatSpecifier;
+
+ case PFormatString^ of
+ 'd', 'u', 'x', 'e', 'f', 'g', 'n', 'm', 'p', 's',
+ 'D', 'U', 'X', 'E', 'F', 'G', 'N', 'M', 'P', 'S':
+ begin
+ // do nothing
+ end
+ else
+ RaiseInvalidFormatSpecifier;
+ end;
+ ForceParseChar(PFormatString^);
+end;
+
+function TFormatStrParser.PeekIndexSpecifier(out Index: Integer): Boolean;
+var
+ SaveParsedString: WideString;
+ SaveFormatString: PWideChar;
+begin
+ SaveParsedString := ParsedString.Value;
+ SaveFormatString := PFormatString;
+ try
+ ParsedString.Clear;
+ Result := False;
+ Index := -1;
+ if ParseInteger then begin
+ Index := StrToInt(ParsedString.Value);
+ if ParseChar(':') then
+ Result := True;
+ end;
+ finally
+ ParsedString.Clear;
+ ParsedString.AddString(SaveParsedString);
+ PFormatString := SaveFormatString;
+ end;
+end;
+
+function TFormatStrParser.ParseFormatSpecifier: Boolean;
+var
+ ExplicitIndex: Integer;
+begin
+ Result := False;
+ // Parse entire format specifier
+ ForceParseChar('%');
+ if (PFormatString^ <> #0)
+ and (not ParseChar(' '))
+ and (not ParseChar('%')) then begin
+ if PeekIndexSpecifier(ExplicitIndex) then begin
+ Inc(ExplicitCount);
+ LastIndex := Max(LastIndex, ExplicitIndex);
+ end else begin
+ Inc(ImplicitCount);
+ Inc(LastIndex);
+ ParsedString.AddString(IntToStr(LastIndex));
+ ParsedString.AddChar(':');
+ end;
+ if ParseChar('*') then
+ begin
+ Inc(ImplicitCount);
+ Inc(LastIndex);
+ ParseChar(':');
+ end else if ParseInteger then
+ ParseChar(':');
+ ParseChar('-');
+ if ParseChar('*') then begin
+ Inc(ImplicitCount);
+ Inc(LastIndex);
+ end else
+ ParseInteger;
+ if ParseChar('.') then begin
+ if not ParseChar('*') then
+ ParseInteger;
+ end;
+ ForceParseType;
+ Result := True;
+ end;
+end;
+
+//-----------------------------------
+
+function GetCanonicalFormatStr(const _FormatString: WideString): WideString;
+var
+ PosSpec: Integer;
+begin
+ with TFormatStrParser.Create(_FormatString) do
+ try
+ // loop until no more '%'
+ PosSpec := Pos(WideString('%'), PFormatString);
+ While PosSpec <> 0 do begin
+ try
+ // delete everything up until '%'
+ ParsedString.AddBuffer(PFormatString, PosSpec - 1);
+ Inc(PFormatString, PosSpec - 1);
+ // parse format specifier
+ ParseFormatSpecifier;
+ finally
+ PosSpec := Pos(WideString('%'), PFormatString);
+ end;
+ end;
+ if ((ExplicitCount = 0) and (ImplicitCount = 1)) {simple expression}
+ or ((ExplicitCount > 0) and (ImplicitCount = 0)) {nothing converted} then
+ result := _FormatString {original}
+ else
+ result := ParsedString.Value + PFormatString;
+ finally
+ Free;
+ end;
+end;
+
+{$IFNDEF FPC}
+{$IFNDEF COMPILER_9_UP}
+function ReplaceFloatingArgumentsInFormatString(const _FormatString: WideString;
+ const Args: array of const
+ {$IFDEF COMPILER_7_UP}; FormatSettings: PFormatSettings{$ENDIF}): WideString;
+{ This function replaces floating point format specifiers with their actual formatted values.
+ It also adds index specifiers so that the other format specifiers don't lose their place.
+ The reason for this is that WideFormat doesn't correctly format floating point specifiers.
+ See QC#4254. }
+var
+ Parser: TFormatStrParser;
+ PosSpec: Integer;
+ Output: TBufferedWideString;
+begin
+ Output := TBufferedWideString.Create;
+ try
+ Parser := TFormatStrParser.Create(_FormatString);
+ with Parser do
+ try
+ // loop until no more '%'
+ PosSpec := Pos('%', PFormatString);
+ While PosSpec <> 0 do begin
+ try
+ // delete everything up until '%'
+ Output.AddBuffer(PFormatString, PosSpec - 1);
+ Inc(PFormatString, PosSpec - 1);
+ // parse format specifier
+ ParsedString.Clear;
+ if (not ParseFormatSpecifier)
+ or (GetFormatSpecifierType(ParsedString.Value) <> fstFloating) then
+ Output.AddBuffer(ParsedString.BuffPtr, MaxInt)
+ {$IFDEF COMPILER_7_UP}
+ else if Assigned(FormatSettings) then
+ Output.AddString(Format{TNT-ALLOW Format}(ParsedString.Value, Args, FormatSettings^))
+ {$ENDIF}
+ else
+ Output.AddString(Format{TNT-ALLOW Format}(ParsedString.Value, Args));
+ finally
+ PosSpec := Pos('%', PFormatString);
+ end;
+ end;
+ Output.AddString(PFormatString);
+ finally
+ Free;
+ end;
+ Result := Output.Value;
+ finally
+ Output.Free;
+ end;
+end;
+{$ENDIF}
+{$ENDIF}
+
+procedure GetFormatArgs(const _FormatString: WideString; FormatArgs: TTntStrings);
+var
+ PosSpec: Integer;
+begin
+ with TFormatStrParser.Create(_FormatString) do
+ try
+ FormatArgs.Clear;
+ // loop until no more '%'
+ PosSpec := Pos(WideString('%'), PFormatString);
+ While PosSpec <> 0 do begin
+ try
+ // delete everything up until '%'
+ Inc(PFormatString, PosSpec - 1);
+ // add format specifier to list
+ ParsedString.Clear;
+ if ParseFormatSpecifier then
+ FormatArgs.Add(ParsedString.Value);
+ finally
+ PosSpec := Pos(WideString('%'), PFormatString);
+ end;
+ end;
+ finally
+ Free;
+ end;
+end;
+
+function GetExplicitIndex(const FormatSpecifier: WideString): Integer;
+var
+ IndexStr: WideString;
+ PosColon: Integer;
+begin
+ result := -1;
+ PosColon := Pos(':', FormatSpecifier);
+ if PosColon <> 0 then begin
+ IndexStr := Copy(FormatSpecifier, 2, PosColon - 2);
+ result := StrToInt(IndexStr);
+ end;
+end;
+
+function GetMaxIndex(FormatArgs: TTntStrings): Integer;
+var
+ i: integer;
+ RunningIndex: Integer;
+ ExplicitIndex: Integer;
+begin
+ result := -1;
+ RunningIndex := -1;
+ for i := 0 to FormatArgs.Count - 1 do begin
+ ExplicitIndex := GetExplicitIndex(FormatArgs[i]);
+ if ExplicitIndex <> -1 then
+ RunningIndex := ExplicitIndex
+ else
+ inc(RunningIndex);
+ result := Max(result, RunningIndex);
+ end;
+end;
+
+function FormatSpecToObject(SpecType: TFormatSpecifierType): TObject;
+begin
+ {$IFNDEF FPC}
+ Result := TObject(SpecType);
+ {$ELSE}
+ Result := Pointer(SpecType);
+ {$ENDIF}
+end;
+
+procedure UpdateTypeList(FormatArgs, TypeList: TTntStrings);
+var
+ i: integer;
+ f: WideString;
+ SpecType: TFormatSpecifierType;
+ ExplicitIndex: Integer;
+ MaxIndex: Integer;
+ RunningIndex: Integer;
+begin
+ // set count of TypeList to accomodate maximum index
+ MaxIndex := GetMaxIndex(FormatArgs);
+ TypeList.Clear;
+ for i := 0 to MaxIndex do
+ TypeList.Add('');
+
+ // for each arg...
+ RunningIndex := -1;
+ for i := 0 to FormatArgs.Count - 1 do begin
+ f := FormatArgs[i];
+ ExplicitIndex := GetExplicitIndex(f);
+ SpecType := GetFormatSpecifierType(f);
+
+ // determine running arg index
+ if ExplicitIndex <> -1 then
+ RunningIndex := ExplicitIndex
+ else
+ inc(RunningIndex);
+
+ if TypeList[RunningIndex] <> '' then begin
+ // already exists in list, check for compatibility
+ if TypeList.Objects[RunningIndex] <> FormatSpecToObject(SpecType) then
+ raise EFormatSpecError.CreateFmt(SMismatchedArgumentTypes,
+ [RunningIndex, TypeList[RunningIndex], f]);
+ end else begin
+ // not in list so update it
+ TypeList[RunningIndex] := f;
+ TypeList.Objects[RunningIndex] := FormatSpecToObject(SpecType);
+ end;
+ end;
+end;
+
+procedure CompareFormatStrings(FormatStr1, FormatStr2: WideString);
+var
+ ArgList1: TTntStringList;
+ ArgList2: TTntStringList;
+ TypeList1: TTntStringList;
+ TypeList2: TTntStringList;
+ i: integer;
+begin
+ ArgList1 := nil;
+ ArgList2 := nil;
+ TypeList1 := nil;
+ TypeList2 := nil;
+ try
+ ArgList1 := TTntStringList.Create;
+ ArgList2 := TTntStringList.Create;
+ TypeList1 := TTntStringList.Create;
+ TypeList2 := TTntStringList.Create;
+
+ GetFormatArgs(FormatStr1, ArgList1);
+ UpdateTypeList(ArgList1, TypeList1);
+
+ GetFormatArgs(FormatStr2, ArgList2);
+ UpdateTypeList(ArgList2, TypeList2);
+
+ if TypeList1.Count <> TypeList2.Count then
+ raise EFormatSpecError.Create(SMismatchedArgumentCounts + CRLF + CRLF + '> ' + FormatStr1 + CRLF + '> ' + FormatStr2);
+
+ for i := 0 to TypeList1.Count - 1 do begin
+ if TypeList1.Objects[i] <> TypeList2.Objects[i] then begin
+ raise EFormatSpecError.CreateFmt(SMismatchedArgumentTypes,
+ [i, TypeList1[i], TypeList2[i]]);
+ end;
+ end;
+
+ finally
+ ArgList1.Free;
+ ArgList2.Free;
+ TypeList1.Free;
+ TypeList2.Free;
+ end;
+end;
+
+function FormatStringsAreCompatible(FormatStr1, FormatStr2: WideString): Boolean;
+var
+ ArgList1: TTntStringList;
+ ArgList2: TTntStringList;
+ TypeList1: TTntStringList;
+ TypeList2: TTntStringList;
+ i: integer;
+begin
+ ArgList1 := nil;
+ ArgList2 := nil;
+ TypeList1 := nil;
+ TypeList2 := nil;
+ try
+ ArgList1 := TTntStringList.Create;
+ ArgList2 := TTntStringList.Create;
+ TypeList1 := TTntStringList.Create;
+ TypeList2 := TTntStringList.Create;
+
+ GetFormatArgs(FormatStr1, ArgList1);
+ UpdateTypeList(ArgList1, TypeList1);
+
+ GetFormatArgs(FormatStr2, ArgList2);
+ UpdateTypeList(ArgList2, TypeList2);
+
+ Result := (TypeList1.Count = TypeList2.Count);
+ if Result then begin
+ for i := 0 to TypeList1.Count - 1 do begin
+ if TypeList1.Objects[i] <> TypeList2.Objects[i] then begin
+ Result := False;
+ break;
+ end;
+ end;
+ end;
+ finally
+ ArgList1.Free;
+ ArgList2.Free;
+ TypeList1.Free;
+ TypeList2.Free;
+ end;
+end;
+
+end.
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-24 00:46:03 +0000