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// Upgraded to Delphi 2009: Sebastian Zierer
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(* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is TurboPower SysTools
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*
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* The Initial Developer of the Original Code is
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* TurboPower Software
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*
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* Portions created by the Initial Developer are Copyright (C) 1996-2002
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* ***** END LICENSE BLOCK ***** *)
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{*********************************************************}
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{* SysTools: StBase.pas 4.04 *}
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{*********************************************************}
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{* SysTools: Base unit for SysTools *}
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{*********************************************************}
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{$I StDefine.inc}
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unit StBase;
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interface
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uses
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Windows,
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Classes, SysUtils, Messages, StdCtrls,
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StConst;
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const
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{.Z+}
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StMaxBlockSize = MaxLongInt;
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{.Z-}
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type
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{!!.01 - moved from StBase.pas }
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TStLineTerminator = ( {possible line terminators...}
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ltNone, {..no terminator, ie fixed length lines}
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ltCR, {..carriage return (#13)}
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ltLF, {..line feed (#10)}
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ltCRLF, {..carriage return/line feed (#13/#10)}
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ltOther); {..another character}
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{!!.01 - end moved }
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type
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{$IFDEF CBuilder}
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TStHwnd = Integer;
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{$ELSE}
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TStHwnd = HWND;
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{$ENDIF}
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{-SysTools exception class tree}
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type
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EStException = class(Exception) {ancestor to all SysTools exceptions}
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protected {private}
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FErrorCode : Longint;
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public
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constructor CreateResTP(Ident : LongInt; Dummy : Word);
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constructor CreateResFmtTP(Ident : Longint; const Args : array of const;
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Dummy : Word);
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property ErrorCode : LongInt
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read FErrorCode
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write FErrorCode;
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end;
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EStExceptionClass = class of EStException;
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EStContainerError = class(EStException); {container exceptions}
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EStSortError = class(EStException); {sorting exceptions}
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EStRegIniError = class(EStException); {registry/INI file exceptions}
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EStBCDError = class(EStException); {Bcd exceptions}
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EStStringError = class(EStException); {String class exceptions}
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EStVersionInfoError = class(EStException); {Version info exception}
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EStNetException = class(EStException); {Network exception}
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EStBarCodeError = class(EStException); {BarCode exception}
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EStPNBarCodeError = class(EStException); {PostNet BarCode exception}
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EStStatError = class(EStException); {statistics exceptions}
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EStFinError = class(EStException); {Financial exceptions}
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EStMimeError = class(EStException); {Mime exceptions}
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EStToHTMLError = class(EStException); {ToHTML exceptions}
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EStSpawnError = class(EStException); {SpawnApplication errors}
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EStMMFileError = class(EStException); {MemoryMappedFile errors}
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EStBufStreamError =class(EStException); {Buffered stream errors}
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EStRegExError = class(EStException); {RegEx errors}
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EStDecMathError = class(EStException); {Decimal math errors}
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EStPRNGError = class(EStException); {Random number errors}
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EStExprError = class(EStException) {expression evaluator exceptions}
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protected {private}
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FErrorCol : Integer;
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public
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constructor CreateResTPCol(Ident : Longint; Column : Integer; Dummy : Integer);
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property ErrorColumn : Integer
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{-Returns the string position at the start of the token where
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the error was detected}
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read FErrorCol;
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end;
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const
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{.Z+}
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StMaxFileLen = 260;
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StRLEMaxCount = 127; { Used by RLE }
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StRLERunMode = $80; { Used by RLE }
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{.Z-}
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const
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{.Z+}
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{used by CompareLetterSets for estimating word similarity}
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StLetterValues : array['A'..'Z'] of Byte = (
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3 {A} , 6 {B} , 5 {C} , 4 {D} , 3 {E} , 5 {F} , 5 {G} , 4 {H} , 3 {I} ,
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8 {J} , 7 {K} , 4 {L} , 5 {M} , 3 {N} , 3 {O} , 5 {P} , 7 {Q} , 4 {R} ,
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3 {S} , 3 {T} , 4 {U} , 6 {V} , 5 {W} , 8 {X} , 8 {Y} , 9 {Z} );
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StHexDigits : array[0..$F] of AnsiChar = '0123456789ABCDEF';
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DosDelimSet : set of AnsiChar = ['\', ':', #0];
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{$IFDEF VERSION4} { Delphi/Builder 3 doesn't like widestring typed constants }
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StHexDigitsW : WideString = '0123456789ABCDEF';
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DosDelimSetW : WideString = '\:';
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{$ENDIF}
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{.Z-}
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type
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{.Z+}
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TSmallArrayA = array[0..StMaxFileLen-1] of AnsiChar;
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TSmallArray = array[0..StMaxFileLen-1] of Char;
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BTable = array[0..255] of Byte; {Table used by Boyer-Moore search routines}
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{$IFDEF UNICODE}
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BTableU = array[0..$FFFF] of Byte;
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{$ENDIF}
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{.Z-}
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type
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{.Z+}
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PDouble = ^Double;
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TDoubleArray = array[0..(stMaxBlockSize div SizeOf(Double))-1] of Double;
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PDoubleArray = ^TDoubleArray;
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TIntArray = array[0..(StMaxBlockSize div SizeOf(Integer))-1] of Integer;
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PIntArray = ^TIntArray;
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{.Z-}
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type
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{the SysTools floating point type}
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{$IFOPT N+}
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TStFloat = Extended;
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{$ELSE}
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TStFloat = Real;
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{$ENDIF}
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const
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WMCOPYID : DWORD = $AFAF;
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type
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TStNode = class(TPersistent)
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{.Z+}
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protected {private}
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FData : Pointer;
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{.Z-}
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public
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constructor Create(AData : Pointer);
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virtual;
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property Data : Pointer
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read FData
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write FData;
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end;
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{.Z+}
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TStNodeClass = class of TStNode;
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{.Z-}
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TStContainer = class;
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TCompareFunc =
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function(Data1, Data2 : Pointer) : Integer;
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TStCompareEvent =
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procedure(Sender : TObject; Data1, Data2 : Pointer; var Compare : Integer)
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of object;
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TDisposeDataProc =
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procedure(Data : Pointer);
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TStDisposeDataEvent =
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procedure(Sender : TObject; Data : Pointer)
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of object;
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TLoadDataFunc =
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function(Reader : TReader) : Pointer;
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TStLoadDataEvent =
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procedure(Sender : TObject; Reader : TReader; var Data : Pointer)
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of object;
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TStoreDataProc =
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procedure(Writer : TWriter; Data : Pointer);
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TStStoreDataEvent =
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procedure(Sender : TObject; Writer : TWriter; Data : Pointer)
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of object;
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TStringCompareFunc =
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function(const String1, String2 : string) : Integer;
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TStStringCompareEvent =
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procedure(Sender : TObject; const String1, String2 : string; var Compare : Integer)
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of object;
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TUntypedCompareFunc =
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function(const El1, El2) : Integer;
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TStUntypedCompareEvent =
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procedure(Sender : TObject; const El1, El2; var Compare : Integer)
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of object;
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TIterateFunc =
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function(Container : TStContainer; Node : TStNode; OtherData : Pointer) : Boolean;
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TIteratePointerFunc =
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function(Container : TStContainer; Data, OtherData : Pointer) : Boolean;
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TIterateUntypedFunc =
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function(Container : TStContainer; var Data; OtherData : Pointer) : Boolean;
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TStContainer = class(TPersistent)
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{.Z+}
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protected {private}
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{property instance variables}
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FCompare : TCompareFunc;
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FDisposeData : TDisposeDataProc;
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FLoadData : TLoadDataFunc;
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FStoreData : TStoreDataProc;
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{event variables}
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FOnCompare : TStCompareEvent;
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FOnDisposeData : TStDisposeDataEvent;
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FOnLoadData : TStLoadDataEvent;
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FOnStoreData : TStStoreDataEvent;
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{private instance variables}
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{$IFDEF ThreadSafe}
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conThreadSafe : TRTLCriticalSection;
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{$ENDIF}
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procedure SetCompare(C : TCompareFunc);
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procedure SetDisposeData(D : TDisposeDataProc);
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procedure SetLoadData(L : TLoadDataFunc);
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procedure SetStoreData(S : TStoreDataProc);
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protected
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conNodeClass : TStNodeClass;
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conNodeProt : Integer;
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FCount : Longint;
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{protected undocumented methods}
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function AssignPointers(Source : TPersistent; AssignData : TIteratePointerFunc) : boolean;
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function AssignUntypedVars(Source : TPersistent; AssignData : TIterateUntypedFunc) : boolean;
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procedure ForEachPointer(Action : TIteratePointerFunc; OtherData : Pointer);
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virtual;
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procedure ForEachUntypedVar(Action : TIterateUntypedFunc; OtherData : pointer);
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virtual;
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procedure GetArraySizes(var RowCount, ColCount, ElSize : Cardinal);
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virtual;
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procedure SetArraySizes(RowCount, ColCount, ElSize : Cardinal);
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virtual;
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function StoresPointers : boolean;
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virtual;
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function StoresUntypedVars : boolean;
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virtual;
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{protected documented}
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procedure IncNodeProtection;
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{-Prevent container Destroy from destroying its nodes}
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procedure DecNodeProtection;
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{-Allow container Destroy to destroy its nodes}
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procedure EnterCS;
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{-Enter critical section for this instance}
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procedure LeaveCS;
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{-Leave critical section for this instance}
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{.Z-}
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public
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constructor CreateContainer(NodeClass : TStNodeClass; Dummy : Integer);
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{-Create an abstract container (called by descendants)}
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destructor Destroy;
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override;
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{-Destroy a collection, and perhaps its nodes}
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procedure Clear;
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virtual; abstract;
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{-Remove all elements from collection}
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procedure DisposeNodeData(P : TStNode);
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{-Destroy the data associated with a node}
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{wrapper methods for using events or proc/func pointers}
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function DoCompare(Data1, Data2 : Pointer) : Integer;
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virtual;
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procedure DoDisposeData(Data : Pointer);
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virtual;
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function DoLoadData(Reader : TReader) : Pointer;
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virtual;
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procedure DoStoreData(Writer : TWriter; Data : Pointer);
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virtual;
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procedure LoadFromFile(const FileName : string);
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dynamic;
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{-Create a container and its data from a file}
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procedure LoadFromStream(S : TStream);
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dynamic; abstract;
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{-Create a container and its data from a stream}
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procedure StoreToFile(const FileName : string);
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dynamic;
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{-Create a container and its data from a file}
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procedure StoreToStream(S : TStream);
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dynamic; abstract;
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{-Write a container and its data to a stream}
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property Count : LongInt
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{-Return the number of elements in the collection}
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read FCount;
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property Compare : TCompareFunc
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{-Set or read the node comparison function}
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read FCompare
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write SetCompare;
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property DisposeData : TDisposeDataProc
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{-Set or read the node data dispose function}
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read FDisposeData
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write SetDisposeData;
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property LoadData : TLoadDataFunc
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{-Set or read the node data load function}
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read FLoadData
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write SetLoadData;
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property StoreData : TStoreDataProc
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{-Set or read the node data load function}
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read FStoreData
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write SetStoreData;
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{events}
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property OnCompare : TStCompareEvent
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read FOnCompare
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write FOnCompare;
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property OnDisposeData : TStDisposeDataEvent
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read FOnDisposeData
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write FOnDisposeData;
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property OnLoadData : TStLoadDataEvent
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read FOnLoadData
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write FOnLoadData;
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property OnStoreData : TStStoreDataEvent
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read FOnStoreData
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write FOnStoreData;
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end;
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TAssignRowData = record
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RowNum : Integer;
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Data : array [0..0] of Byte;
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end;
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{.Z+}
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{ base component for SysTools non-visual components}
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TStComponent = class(TComponent)
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protected {private}
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function GetVersion : string;
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procedure SetVersion(const Value : string);
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published
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property Version : string
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read GetVersion
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write SetVersion
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stored False;
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end;
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{ base component for TStExpressionEdit component }
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TStBaseEdit = class(TEdit)
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protected {private}
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function GetVersion : string;
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procedure SetVersion(const Value : string);
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published
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property Version : string
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read GetVersion
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write SetVersion
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stored False;
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end;
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{.Z-}
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399 |
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{---Generic node routines---}
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function DestroyNode(Container : TStContainer; Node : TStNode;
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OtherData : Pointer) : Boolean;
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{-Generic function to pass to iterator to destroy a container node}
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405 |
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{---WIN32 short string routines---}
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{$IFDEF WStrings}
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function AnsiUpperCaseShort32(const S : string) : string;
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{-Ansi uppercase for H- strings in WIN32}
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function AnsiCompareTextShort32(const S1, S2: string): Integer;
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{-Case-insensitive compare function for H- strings in WIN32}
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413 |
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function AnsiCompareStrShort32(const S1, S2: string): Integer;
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{-Case-sensitive compare function for H- strings in WIN32}
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{$ENDIF}
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419 |
{.Z+}
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{---Huge memory routines---}
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421 |
function HugeCompressRLE(const InBuffer; InLen : Longint;
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var OutBuffer) : Longint;
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{-Run length encode a buffer}
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424 |
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function HugeDecompressRLE(const InBuffer; InLen : Longint;
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var OutBuffer; OutLen : LongInt) : Longint;
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{-Run length decode a buffer}
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428 |
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429 |
procedure HugeFillChar(var Dest; Count : Longint; Value : Byte);
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{-Fill huge memory block with byte value}
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431 |
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procedure HugeFillStruc(var Dest; Count : Longint;
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const Value; ValSize : Cardinal);
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{-Fill huge memory block with structure value}
|
435 |
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procedure HugeMove(const Src; var Dest; Count : LongInt);
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{-Copy huge memory block to another}
|
438 |
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procedure HugeGetMem(var P : Pointer; Size : LongInt);
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{-Get huge memory block allocation}
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441 |
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procedure HugeFreeMem(var P : Pointer; Size : LongInt);
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{-Free huge memory block allocation}
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444 |
{.Z-}
|
445 |
|
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|
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{---General purpose character manipulation---}
|
448 |
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function Upcase(C : AnsiChar) : AnsiChar; overload;
|
450 |
function Upcase(C : WideChar) : WideChar; overload;
|
451 |
{-Return the uppercase of a character. Provides international character
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support.}
|
453 |
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function LoCase(C : AnsiChar) : AnsiChar; overload;
|
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function LoCase(C : WideChar) : WideChar; overload;
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456 |
{-Return the lowercase of a character. Provides international character
|
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support.}
|
458 |
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{---General comparison and searching---}
|
460 |
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461 |
function CompareLetterSets(Set1, Set2 : LongInt) : Cardinal;
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462 |
{-Return the sum of the values of the letters common to Set1 and Set2.}
|
463 |
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464 |
function CompStruct(const S1, S2; Size : Cardinal) : Integer;
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465 |
{-Compare two fixed size structures.}
|
466 |
|
467 |
function Search(const Buffer; BufLength : Cardinal; const Match;
|
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MatLength : Cardinal; var Pos : Cardinal) : Boolean;
|
469 |
{-Search a buffer for the specified pattern of bytes.}
|
470 |
|
471 |
function SearchUC(const Buffer; BufLength : Cardinal; const Match;
|
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MatLength : Cardinal; var Pos : Cardinal) : Boolean;
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{-Search a buffer for a specified pattern of bytes. This search is not case
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sensitive.}
|
475 |
|
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|
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{---Miscellaneous---}
|
478 |
|
479 |
{.Z+}
|
480 |
function IsOrInheritsFrom(Root, Candidate : TClass) : boolean;
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481 |
{-Return true if the classes are equal or Candidate is a descendant of Root}
|
482 |
|
483 |
procedure RaiseContainerError(Code : longint);
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484 |
{-Internal routine: raise an exception for a container}
|
485 |
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486 |
procedure RaiseContainerErrorFmt(Code : Longint; Data : array of const);
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487 |
{-Internal routine: raise an exception for a container}
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488 |
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489 |
function ProductOverflow(A, B : LongInt) : Boolean;
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490 |
{-Return True if A*B exceeds MaxLongInt}
|
491 |
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492 |
{$IFNDEF HStrings}
|
493 |
function StNewStr(S : string) : PShortString;
|
494 |
{-Allocate a short string on the heap}
|
495 |
|
496 |
procedure StDisposeStr(PS : PShortString);
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497 |
{-Deallocate a short string from the heap}
|
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{$ENDIF}
|
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{.Z-}
|
500 |
|
501 |
|
502 |
{---primitives for converting strings to integers}
|
503 |
procedure ValLongInt(S : ShortString; var LI : Longint; var ErrorCode : integer);
|
504 |
procedure ValSmallint(const S : ShortString; var SI : smallint; var ErrorCode : integer);
|
505 |
procedure ValWord(const S : ShortString; var Wd : word; var ErrorCode : integer);
|
506 |
|
507 |
{.Z+}
|
508 |
{general routine to raise a specific class of SysTools exception}
|
509 |
procedure RaiseStError(ExceptionClass : EStExceptionClass; Code : LongInt);
|
510 |
{.Z-}
|
511 |
|
512 |
{.Z+}
|
513 |
{general routines to raise a specific Win32 exception in SysTools}
|
514 |
procedure RaiseStWin32Error(ExceptionClass : EStExceptionClass; Code : LongInt);
|
515 |
procedure RaiseStWin32ErrorEx(ExceptionClass : EStExceptionClass; Code : LongInt; Info : string);
|
516 |
{.Z-}
|
517 |
|
518 |
{$IFDEF VERSION3ONLY}
|
519 |
var
|
520 |
StHexDigitsW : WideString;
|
521 |
DosDelimSetW : WideString;
|
522 |
{$ENDIF}
|
523 |
|
524 |
|
525 |
implementation
|
526 |
|
527 |
procedure RaiseStError(ExceptionClass : EStExceptionClass; Code : LongInt);
|
528 |
var
|
529 |
E : EStException;
|
530 |
begin
|
531 |
E := ExceptionClass.CreateResTP(Code, 0);
|
532 |
E.ErrorCode := Code;
|
533 |
raise E;
|
534 |
end;
|
535 |
|
536 |
procedure RaiseStWin32Error(ExceptionClass : EStExceptionClass; Code : LongInt);
|
537 |
var
|
538 |
E : EStException;
|
539 |
begin
|
540 |
E := ExceptionClass.Create(SysErrorMessage(Code));
|
541 |
E.ErrorCode := Code;
|
542 |
raise E;
|
543 |
end;
|
544 |
|
545 |
procedure RaiseStWin32ErrorEx(ExceptionClass : EStExceptionClass; Code : LongInt;
|
546 |
Info : string);
|
547 |
var
|
548 |
E : EStException;
|
549 |
begin
|
550 |
E := ExceptionClass.Create(SysErrorMessage(Code) + ' [' + Info + ']');
|
551 |
E.ErrorCode := Code;
|
552 |
raise E;
|
553 |
end;
|
554 |
|
555 |
constructor EStException.CreateResTP(Ident : LongInt; Dummy : Word);
|
556 |
begin
|
557 |
inherited Create(SysToolsStr(Ident));
|
558 |
end;
|
559 |
|
560 |
constructor EStException.CreateResFmtTP(Ident : Longint;
|
561 |
const Args : array of const; Dummy : Word);
|
562 |
begin
|
563 |
inherited CreateFmt(SysToolsStr(Ident), Args);
|
564 |
end;
|
565 |
|
566 |
constructor EStExprError.CreateResTPCol(Ident : Longint; Column : Integer; Dummy : Integer);
|
567 |
begin
|
568 |
inherited CreateResTP(Ident, 0);
|
569 |
|
570 |
FErrorCol := Column;
|
571 |
end;
|
572 |
|
573 |
|
574 |
function AbstractCompare(Data1, Data2 : Pointer) : Integer; far;
|
575 |
begin
|
576 |
raise ESTContainerError.CreateResTP(stscNoCompare, 0);
|
577 |
end;
|
578 |
|
579 |
{$IFDEF WStrings}
|
580 |
function AnsiCompareStrShort32(const S1, S2: AnsiString): Integer; assembler;
|
581 |
asm
|
582 |
push esi
|
583 |
push edi
|
584 |
mov esi,S1
|
585 |
mov edi,S2
|
586 |
xor eax,eax
|
587 |
xor edx,edx
|
588 |
xor ecx,ecx
|
589 |
mov dl,[esi]
|
590 |
inc esi
|
591 |
mov dh,[edi]
|
592 |
inc edi
|
593 |
mov cl,dl
|
594 |
cmp cl,dh
|
595 |
jbe @1
|
596 |
mov cl,dh
|
597 |
@1:
|
598 |
or ecx, ecx
|
599 |
je @CheckLengths
|
600 |
repe cmpsb
|
601 |
jb @LT
|
602 |
ja @GT
|
603 |
@CheckLengths:
|
604 |
cmp dl, dh
|
605 |
je @Exit
|
606 |
jb @LT
|
607 |
@GT:
|
608 |
inc eax
|
609 |
inc eax
|
610 |
@LT:
|
611 |
dec eax
|
612 |
@Exit:
|
613 |
pop edi
|
614 |
pop esi
|
615 |
end;
|
616 |
|
617 |
function AnsiCompareTextShort32(const S1, S2: string): Integer;
|
618 |
begin
|
619 |
Result := AnsiCompareStrShort32(AnsiUpperCaseShort32(S1),
|
620 |
AnsiUpperCaseShort32(S2));
|
621 |
end;
|
622 |
|
623 |
function AnsiUpperCaseShort32(const S : string) : string;
|
624 |
begin
|
625 |
Result := S;
|
626 |
AnsiUpperBuff(PChar(@Result[1]), Length(S));
|
627 |
end;
|
628 |
{$ENDIF}
|
629 |
|
630 |
function DestroyNode(Container : TStContainer;
|
631 |
Node : TStNode;
|
632 |
OtherData : Pointer) : Boolean;
|
633 |
begin
|
634 |
Container.DisposeNodeData(Node);
|
635 |
Node.Free;
|
636 |
Result := True;
|
637 |
end;
|
638 |
|
639 |
procedure HugeFillChar(var Dest; Count : Longint; Value : Byte);
|
640 |
begin
|
641 |
FillChar(Dest, Count, Value);
|
642 |
end;
|
643 |
|
644 |
function HugeCompressRLE(const InBuffer; InLen : Longint;
|
645 |
var OutBuffer) : Longint;
|
646 |
{assumes OutBuffer is at least InLen long}
|
647 |
{returns -1 if InLen <= 1 or if output length would exceed InLen}
|
648 |
{otherwise returns compressed length}
|
649 |
{does not initialize OutBuffer if the result is -1}
|
650 |
asm
|
651 |
{InBuffer = eax, InLen = edx, OutBuffer = ecx}
|
652 |
push ebx
|
653 |
push esi
|
654 |
push edi
|
655 |
|
656 |
push OutBuffer {save output base for later}
|
657 |
|
658 |
cmp InLen,1
|
659 |
jle @A {can't compress if input length <= 1}
|
660 |
|
661 |
mov esi,InBuffer {esi = current input offset}
|
662 |
mov edi,OutBuffer {edi = current output offset}
|
663 |
mov eax,InLen
|
664 |
mov ebx,edi {ebx = control byte offset}
|
665 |
mov byte ptr [ebx],0 {reset first control byte}
|
666 |
mov edx,edi
|
667 |
add edx,eax {edx = endpoint of output buffer}
|
668 |
dec edx {reserve an extra space for control byte}
|
669 |
mov ecx,esi
|
670 |
add ecx,eax {ecx = endpoint of input buffer}
|
671 |
dec ecx {reduce by one for convenience below}
|
672 |
dec esi {decrement first time through}
|
673 |
|
674 |
@1: inc esi {next input byte}
|
675 |
cmp esi,ecx
|
676 |
ja @9 {exit at end of input}
|
677 |
mov al,[esi] {load compare byte}
|
678 |
jae @5 {can't be a match if on last byte of input}
|
679 |
cmp [esi+1],al {is it a run?}
|
680 |
jne @5 {jump if not}
|
681 |
|
682 |
{starting a run}
|
683 |
mov ebx,edi {start a new control sequence}
|
684 |
mov byte ptr [ebx],1 {first byte in run}
|
685 |
mov [ebx+1],al {store run byte}
|
686 |
@2: inc esi {next input byte}
|
687 |
cmp esi,ecx {end of input?}
|
688 |
ja @3 {exit this loop if so}
|
689 |
cmp [esi],al {next byte a match?}
|
690 |
jne @3 {jump if not a run}
|
691 |
cmp byte ptr [ebx],StRLEMaxCount {max run length?}
|
692 |
je @3 {exit this loop if so}
|
693 |
inc byte ptr [ebx] {increment control byte}
|
694 |
jmp @2 {stay in the run loop}
|
695 |
@3: or byte ptr [ebx],StRLERunMode {flag control byte as a run}
|
696 |
inc edi {step past control and run bytes}
|
697 |
inc edi
|
698 |
cmp edi,edx {filled up output buffer?}
|
699 |
jae @A {jump if so}
|
700 |
mov ebx,edi {set up new control byte}
|
701 |
mov byte ptr [ebx],0 {first byte in non-run}
|
702 |
dec esi {back up one byte}
|
703 |
jmp @1 {classify run status again}
|
704 |
|
705 |
@5: {not a run}
|
706 |
cmp edi,ebx {the start of a new non-run?}
|
707 |
ja @6 {jump if not}
|
708 |
inc edi {next output position, guaranteed ok}
|
709 |
@6: cmp byte ptr [ebx],StRLEMaxCount {max non-run length?}
|
710 |
jb @7
|
711 |
mov ebx,edi {start a new control sequence}
|
712 |
mov byte ptr [ebx],0 {reset control byte}
|
713 |
inc edi {next output position}
|
714 |
cmp edi,edx {filled up output buffer?}
|
715 |
jae @A {jump if so}
|
716 |
@7: inc byte ptr [ebx] {increment control byte}
|
717 |
mov [edi],al {copy input byte}
|
718 |
inc edi {next output position}
|
719 |
cmp edi,edx {filled up output buffer?}
|
720 |
jae @A {jump if so}
|
721 |
jmp @1 {back to outer loop}
|
722 |
|
723 |
@9: pop eax {get output base again}
|
724 |
sub edi,eax {get output length}
|
725 |
jmp @B
|
726 |
@A: pop eax {balance stack}
|
727 |
mov edi,-1 {could not compress input}
|
728 |
@B: mov eax,edi {return output length}
|
729 |
|
730 |
pop edi
|
731 |
pop esi
|
732 |
pop ebx
|
733 |
end;
|
734 |
|
735 |
function HugeDecompressRLE(const InBuffer; InLen : Longint;
|
736 |
var OutBuffer; OutLen : LongInt) : Longint;
|
737 |
{returns -1 if InLen is <= 0 or output length > OutLen}
|
738 |
{otherwise returns decompressed length}
|
739 |
asm
|
740 |
{InBuffer = eax, InLen = edx, OutBuffer = ecx, OutLen = stack}
|
741 |
push ebx
|
742 |
push esi
|
743 |
push edi
|
744 |
|
745 |
push OutBuffer {save output base for later}
|
746 |
|
747 |
cmp InLen,0 {anything to decompress?}
|
748 |
jle @A {jump if not}
|
749 |
|
750 |
mov esi,InBuffer {esi = current input offset}
|
751 |
mov edi,OutBuffer {edi = current output offset}
|
752 |
mov ebx,esi
|
753 |
add ebx,InLen {ebx = endpoint of input buffer}
|
754 |
mov edx,OutLen {edx = space free in output buffer}
|
755 |
|
756 |
@1: cmp esi,ebx {end of input?}
|
757 |
jae @9 {jump if so}
|
758 |
mov al,[esi] {get next control byte}
|
759 |
inc esi {move to run data byte}
|
760 |
mov cl,al
|
761 |
and ecx,StRLEMaxCount{ecx = bytes for output}
|
762 |
sub edx,ecx {is there space?}
|
763 |
jc @A {jump if not}
|
764 |
test al,StRLERunMode {is it a run?}
|
765 |
jz @5 {jump if not}
|
766 |
|
767 |
{a run}
|
768 |
mov al,[esi] {get run data}
|
769 |
inc esi {next input position}
|
770 |
rep stosb {store it}
|
771 |
jmp @1 {loop}
|
772 |
|
773 |
@5: {not a run}
|
774 |
rep movsb {copy them}
|
775 |
jmp @1 {loop}
|
776 |
|
777 |
@9: pop eax {get output base again}
|
778 |
sub edi,eax {get output length}
|
779 |
jmp @B
|
780 |
@A: pop eax {balance stack}
|
781 |
mov edi,-1 {could not decompress input}
|
782 |
@B: mov eax,edi {return output length}
|
783 |
|
784 |
pop edi
|
785 |
pop esi
|
786 |
pop ebx
|
787 |
end;
|
788 |
|
789 |
procedure HugeFillStruc(var Dest; Count : Longint;
|
790 |
const Value; ValSize : Cardinal); assembler;
|
791 |
register;
|
792 |
asm
|
793 |
{eax = Dest, edx = Count, ecx = Value}
|
794 |
push ebx
|
795 |
push esi
|
796 |
push edi
|
797 |
mov edi,Dest {edi -> Dest}
|
798 |
mov eax,Value {eax -> Value}
|
799 |
{mov edx,Count} {edx = Count, register parameter}
|
800 |
mov ebp,ValSize {ebp = ValSize}
|
801 |
jmp @2
|
802 |
@1: mov ecx,ebp {ecx = element ValSize}
|
803 |
mov esi,eax {esi -> Value}
|
804 |
mov bx,cx
|
805 |
shr ecx,2
|
806 |
rep movsd
|
807 |
mov cx,bx
|
808 |
and cx,3
|
809 |
rep movsb
|
810 |
@2: sub edx,1 {decrement elements left to fill}
|
811 |
jnc @1 {loop for all elements}
|
812 |
pop edi
|
813 |
pop esi
|
814 |
pop ebx
|
815 |
end;
|
816 |
|
817 |
procedure HugeFreeMem(var P : Pointer; Size : LongInt);
|
818 |
begin
|
819 |
if Assigned(P) then begin
|
820 |
FreeMem(P, Size);
|
821 |
P := nil;
|
822 |
end;
|
823 |
end;
|
824 |
|
825 |
procedure HugeGetMem(var P : Pointer; Size : LongInt);
|
826 |
begin
|
827 |
GetMem(P, Size);
|
828 |
end;
|
829 |
|
830 |
procedure HugeMove(const Src; var Dest; Count : LongInt);
|
831 |
begin
|
832 |
Move(Src, Dest, Count);
|
833 |
end;
|
834 |
|
835 |
function UpCase(C: AnsiChar) : AnsiChar;
|
836 |
asm
|
837 |
and eax, 0FFh
|
838 |
push eax
|
839 |
call CharUpperA
|
840 |
end;
|
841 |
|
842 |
function UpCase(C: WideChar) : WideChar;
|
843 |
asm
|
844 |
and eax, 0FFFFh
|
845 |
push eax
|
846 |
call CharUpperW
|
847 |
end;
|
848 |
|
849 |
function LoCase(C: AnsiChar) : AnsiChar; assembler;
|
850 |
asm
|
851 |
and eax, 0FFh
|
852 |
push eax
|
853 |
call CharLowerA
|
854 |
end;
|
855 |
|
856 |
function LoCase(C: WideChar) : WideChar; assembler;
|
857 |
asm
|
858 |
and eax, 0FFFFh
|
859 |
push eax
|
860 |
call CharLowerW
|
861 |
end;
|
862 |
|
863 |
|
864 |
function ProductOverflow(A, B : LongInt) : Boolean;
|
865 |
register;
|
866 |
asm
|
867 |
mov ecx,False
|
868 |
{A is in eax already, B is in edx already}
|
869 |
imul eax,edx
|
870 |
jno @1
|
871 |
mov ecx,True
|
872 |
@1:
|
873 |
mov eax,ecx
|
874 |
end;
|
875 |
|
876 |
function CompareLetterSets(Set1, Set2 : LongInt) : Cardinal;
|
877 |
{-Returns the sum of the values of the letters common to Set1 and Set2.}
|
878 |
asm
|
879 |
push ebx { Save registers }
|
880 |
push edi
|
881 |
and eax, edx { EAX = EAX and EDX }
|
882 |
xor edx, edx { Zero EDX }
|
883 |
mov ecx, ('Z'-'A') { Set up counter }
|
884 |
mov edi, offset StLetterValues{ Point EBX to table }
|
885 |
xor ebx, ebx
|
886 |
jmp @@Start
|
887 |
|
888 |
@@Next:
|
889 |
dec ecx { Decrement counter }
|
890 |
shl eax, 1 { Shift next bit into position }
|
891 |
|
892 |
@@Start:
|
893 |
test eax, 2000000h { Test 26th bit }
|
894 |
jnz @@Add { If set, add corresponding letter value }
|
895 |
or ecx, ecx
|
896 |
jz @@Exit { Done if ECX is zero }
|
897 |
jmp @@Next { Test next bit }
|
898 |
|
899 |
@@Add:
|
900 |
mov bl, [ecx+edi] { Do table lookup }
|
901 |
add edx, ebx { Add value to result }
|
902 |
or ecx, ecx
|
903 |
jnz @@Next { Test next bit }
|
904 |
|
905 |
@@Exit:
|
906 |
mov eax, edx { Move EDX to result }
|
907 |
pop edi { Restore registers }
|
908 |
pop ebx
|
909 |
end;
|
910 |
|
911 |
function CompStruct(const S1, S2; Size : Cardinal) : Integer;
|
912 |
{-Compare two fixed size structures}
|
913 |
asm
|
914 |
push edi
|
915 |
push esi
|
916 |
mov esi, eax
|
917 |
mov edi, edx
|
918 |
xor eax, eax
|
919 |
or ecx, ecx
|
920 |
jz @@CSDone
|
921 |
|
922 |
repe cmpsb
|
923 |
je @@CSDone
|
924 |
|
925 |
inc eax
|
926 |
ja @@CSDone
|
927 |
or eax, -1
|
928 |
|
929 |
@@CSDone:
|
930 |
pop esi
|
931 |
pop edi
|
932 |
end;
|
933 |
|
934 |
|
935 |
function Search(const Buffer; BufLength : Cardinal; const Match;
|
936 |
MatLength : Cardinal; var Pos : Cardinal) : Boolean;
|
937 |
asm
|
938 |
push ebx
|
939 |
push edi
|
940 |
push esi
|
941 |
|
942 |
cld
|
943 |
mov edi, eax
|
944 |
mov ebx, eax
|
945 |
mov esi, ecx
|
946 |
mov ecx, edx
|
947 |
mov edx, MatLength
|
948 |
or edx, edx
|
949 |
jz @@NotFound
|
950 |
|
951 |
mov al, [esi]
|
952 |
inc esi
|
953 |
dec edx
|
954 |
sub ecx, edx
|
955 |
jbe @@NotFound
|
956 |
|
957 |
@@Next:
|
958 |
repne scasb
|
959 |
jne @@NotFound
|
960 |
or edx, edx
|
961 |
jz @@Found
|
962 |
|
963 |
push ecx
|
964 |
push edi
|
965 |
push esi
|
966 |
|
967 |
mov ecx, edx
|
968 |
repe cmpsb
|
969 |
|
970 |
pop esi
|
971 |
pop edi
|
972 |
pop ecx
|
973 |
|
974 |
jne @@Next {Try again if no match}
|
975 |
|
976 |
{Calculate number of bytes searched and return}
|
977 |
@@Found:
|
978 |
mov esi, Pos
|
979 |
dec edi
|
980 |
sub edi, ebx
|
981 |
mov eax, 1
|
982 |
mov [esi], edi
|
983 |
jmp @@SDone
|
984 |
|
985 |
{Match was not found}
|
986 |
@@NotFound:
|
987 |
xor eax, eax
|
988 |
|
989 |
@@SDone:
|
990 |
pop esi
|
991 |
pop edi
|
992 |
pop ebx
|
993 |
end;
|
994 |
|
995 |
function SearchUC(const Buffer; BufLength : Cardinal; const Match;
|
996 |
MatLength: Cardinal; var Pos : Cardinal) : Boolean;
|
997 |
|
998 |
asm
|
999 |
push ebx { Save registers }
|
1000 |
push edi
|
1001 |
push esi
|
1002 |
push eax
|
1003 |
|
1004 |
mov edi, eax { EDI = ^Buffer }
|
1005 |
mov esi, ecx { ESI = ^Match }
|
1006 |
mov ecx, edx { ECX = BufLength }
|
1007 |
mov edx, MatLength { EDX = MatLength }
|
1008 |
xor ebx, ebx { EBX will be used for comparison }
|
1009 |
or edx, edx { Is MatLength 0? }
|
1010 |
jz @@NotFound
|
1011 |
|
1012 |
mov al, [esi] { Get first character }
|
1013 |
inc esi
|
1014 |
and eax, 0FFh { Zero all but lower byte }
|
1015 |
|
1016 |
push ecx { Save registers }
|
1017 |
push edx
|
1018 |
push eax
|
1019 |
call CharUpper { Upcase character }
|
1020 |
pop edx
|
1021 |
pop ecx
|
1022 |
|
1023 |
mov bl, al { Move uppercased char to BL }
|
1024 |
dec edx { Dec MatLength }
|
1025 |
sub ecx, edx { Is MatLength > BufLength? }
|
1026 |
jbe @@NotFound
|
1027 |
|
1028 |
@@Next:
|
1029 |
mov al, [edi]
|
1030 |
inc edi
|
1031 |
|
1032 |
push ecx { Save registers }
|
1033 |
push edx
|
1034 |
push eax
|
1035 |
call CharUpper { Upcase character in buffer }
|
1036 |
pop edx
|
1037 |
pop ecx
|
1038 |
|
1039 |
cmp bl, al { Match? }
|
1040 |
je @@CompRest { Compare rest of string }
|
1041 |
@@RestNoMatch:
|
1042 |
dec ecx { End of string? }
|
1043 |
jnz @@Next { Try next char }
|
1044 |
jmp @@NotFound { Done if not found }
|
1045 |
|
1046 |
@@CompRest:
|
1047 |
or edx, edx { Was there only one character? }
|
1048 |
jz @@Found { If so, we're done }
|
1049 |
|
1050 |
push ebx { Save registers }
|
1051 |
push ecx
|
1052 |
push edi
|
1053 |
push esi
|
1054 |
|
1055 |
mov ecx, edx
|
1056 |
|
1057 |
@@CompLoop:
|
1058 |
mov al, [esi]
|
1059 |
inc esi
|
1060 |
|
1061 |
push ecx { Save registers }
|
1062 |
push edx
|
1063 |
push eax
|
1064 |
call CharUpper { Upcase character in buffer }
|
1065 |
|
1066 |
mov bl, al
|
1067 |
mov al, [edi]
|
1068 |
inc edi
|
1069 |
|
1070 |
push eax
|
1071 |
call CharUpper { Upcase character in buffer }
|
1072 |
pop edx
|
1073 |
pop ecx
|
1074 |
|
1075 |
cmp bl, al
|
1076 |
jne @@NoComp
|
1077 |
dec ecx
|
1078 |
jnz @@CompLoop
|
1079 |
|
1080 |
@@NoComp:
|
1081 |
pop esi { Restore registers }
|
1082 |
pop edi
|
1083 |
pop ecx
|
1084 |
pop ebx
|
1085 |
|
1086 |
jne @@RestNoMatch { Try again if no match }
|
1087 |
|
1088 |
{Calculate number of bytes searched and return}
|
1089 |
@@Found:
|
1090 |
pop ebx
|
1091 |
mov esi, Pos
|
1092 |
dec edi
|
1093 |
sub edi, ebx
|
1094 |
mov eax, 1
|
1095 |
mov [esi], edi
|
1096 |
jmp @@SDone
|
1097 |
|
1098 |
{Match was not found}
|
1099 |
@@NotFound:
|
1100 |
pop eax
|
1101 |
xor eax, eax
|
1102 |
|
1103 |
@@SDone:
|
1104 |
pop esi
|
1105 |
pop edi
|
1106 |
pop ebx
|
1107 |
end;
|
1108 |
|
1109 |
{---primitives for converting strings to integers---}
|
1110 |
procedure ValLongInt(S : ShortString; var LI : Longint; var ErrorCode : integer);
|
1111 |
var
|
1112 |
LenS : byte absolute S;
|
1113 |
Offset : Integer;
|
1114 |
NBCInx : Integer;
|
1115 |
begin
|
1116 |
{trim trailing spaces}
|
1117 |
while (LenS > 0) and (S[LenS] = ' ') do
|
1118 |
dec(LenS);
|
1119 |
{empty strings are invalid}
|
1120 |
if (LenS = 0) then begin
|
1121 |
LI := 0;
|
1122 |
ErrorCode := -1;
|
1123 |
end;
|
1124 |
{from now on S must have at least one non-blank char}
|
1125 |
|
1126 |
{find the first non-blank char}
|
1127 |
NBCInx := 1;
|
1128 |
while (S[NBCInx] = ' ') do
|
1129 |
inc(NBCInx);
|
1130 |
|
1131 |
{check for a string of the form nnnnH}
|
1132 |
Offset := 0;
|
1133 |
if (stbase.upcase(S[LenS]) = 'H') then begin
|
1134 |
{if the first non-blank char is the final character, then the
|
1135 |
string is just of the form <spaces>H and is invalid}
|
1136 |
if (NBCInx = LenS) then begin
|
1137 |
LI := 0;
|
1138 |
ErrorCode := LenS;
|
1139 |
Exit;
|
1140 |
end;
|
1141 |
Move(S[NBCInx], S[NBCInx+1], LenS-NBCInx);
|
1142 |
S[NBCInx] := '$';
|
1143 |
Offset := -1;
|
1144 |
end
|
1145 |
{check for a string of the form 0Xnnnn}
|
1146 |
else begin
|
1147 |
if (NBCInx < LenS) and
|
1148 |
(S[NBCInx] = '0') and (stbase.upcase(S[NBCInx+1]) = 'X') then begin
|
1149 |
S[NBCInx] := ' ';
|
1150 |
S[NBCInx+1] := '$';
|
1151 |
end;
|
1152 |
end;
|
1153 |
Val(S, LI, ErrorCode);
|
1154 |
if (ErrorCode <> 0) then begin
|
1155 |
LI := 0;
|
1156 |
Inc(ErrorCode, Offset);
|
1157 |
end;
|
1158 |
end;
|
1159 |
|
1160 |
procedure ValSmallint(const S : ShortString; var SI : smallint; var ErrorCode : integer);
|
1161 |
const
|
1162 |
SmallestInt16 = -32767;
|
1163 |
LargestInt16 = 32767;
|
1164 |
var
|
1165 |
LI : Longint;
|
1166 |
begin
|
1167 |
ValLongInt(S, LI, ErrorCode);
|
1168 |
if (ErrorCode <> 0) then
|
1169 |
SI := 0
|
1170 |
else {the conversion succeeded} begin
|
1171 |
if (SmallestInt16 <= LI) and (LI <= LargestInt16) then
|
1172 |
SI := LI
|
1173 |
else begin
|
1174 |
ErrorCode := length(S);
|
1175 |
SI := 0;
|
1176 |
end;
|
1177 |
end;
|
1178 |
end;
|
1179 |
|
1180 |
procedure ValWord(const S : ShortString; var Wd : word; var ErrorCode : integer);
|
1181 |
const
|
1182 |
SmallestWord = 0;
|
1183 |
LargestWord = 65535;
|
1184 |
var
|
1185 |
LI : Longint;
|
1186 |
begin
|
1187 |
ValLongInt(S, LI, ErrorCode);
|
1188 |
if (ErrorCode <> 0) then
|
1189 |
Wd := 0
|
1190 |
else {the conversion succeeded} begin
|
1191 |
if (SmallestWord <= LI) and (LI <= LargestWord) then
|
1192 |
Wd := LI
|
1193 |
else begin
|
1194 |
ErrorCode := length(S);
|
1195 |
Wd := 0;
|
1196 |
end;
|
1197 |
end;
|
1198 |
end;
|
1199 |
{---------------------------------------------------}
|
1200 |
|
1201 |
|
1202 |
function IsOrInheritsFrom(Root, Candidate : TClass) : boolean;
|
1203 |
begin
|
1204 |
Result := (Root = Candidate) or Candidate.InheritsFrom(Root);
|
1205 |
end;
|
1206 |
|
1207 |
procedure RaiseContainerError(Code : LongInt);
|
1208 |
var
|
1209 |
E : ESTContainerError;
|
1210 |
begin
|
1211 |
E := ESTContainerError.CreateResTP(Code, 0);
|
1212 |
E.ErrorCode := Code;
|
1213 |
raise E;
|
1214 |
end;
|
1215 |
|
1216 |
procedure RaiseContainerErrorFmt(Code : Longint; Data : array of const);
|
1217 |
var
|
1218 |
E : ESTContainerError;
|
1219 |
begin
|
1220 |
E := ESTContainerError.CreateResFmtTP(Code, Data, 0);
|
1221 |
E.ErrorCode := Code;
|
1222 |
raise E;
|
1223 |
end;
|
1224 |
|
1225 |
{$IFNDEF HStrings}
|
1226 |
function StNewStr(S : AnsiString) : PShortString;
|
1227 |
begin
|
1228 |
GetMem(Result, succ(length(S)));
|
1229 |
Result^ := S;
|
1230 |
end;
|
1231 |
|
1232 |
procedure StDisposeStr(PS : PShortString);
|
1233 |
begin
|
1234 |
if (PS <> nil) then
|
1235 |
FreeMem(PS, succ(length(PS^)));
|
1236 |
end;
|
1237 |
{$ENDIF}
|
1238 |
|
1239 |
{----------------------------------------------------------------------}
|
1240 |
|
1241 |
constructor TStNode.Create(AData : Pointer);
|
1242 |
begin
|
1243 |
Data := AData;
|
1244 |
end;
|
1245 |
|
1246 |
{----------------------------------------------------------------------}
|
1247 |
|
1248 |
function TStContainer.AssignPointers(Source : TPersistent;
|
1249 |
AssignData : TIteratePointerFunc) : boolean;
|
1250 |
begin
|
1251 |
Result := false;
|
1252 |
if (Source is TStContainer) then
|
1253 |
if TStContainer(Source).StoresPointers then
|
1254 |
begin
|
1255 |
Clear;
|
1256 |
TStContainer(Source).ForEachPointer(AssignData, Self);
|
1257 |
Result := true;
|
1258 |
end;
|
1259 |
end;
|
1260 |
|
1261 |
function TStContainer.AssignUntypedVars(Source : TPersistent;
|
1262 |
AssignData : TIterateUntypedFunc) : boolean;
|
1263 |
var
|
1264 |
RowCount : Cardinal;
|
1265 |
ColCount : Cardinal;
|
1266 |
ElSize : Cardinal;
|
1267 |
begin
|
1268 |
Result := false;
|
1269 |
if (Source is TStContainer) then
|
1270 |
if TStContainer(Source).StoresUntypedVars then
|
1271 |
begin
|
1272 |
Clear;
|
1273 |
TStContainer(Source).GetArraySizes(RowCount, ColCount, ElSize);
|
1274 |
SetArraySizes(RowCount, ColCount, ElSize);
|
1275 |
TStContainer(Source).ForEachUntypedVar(AssignData, Self);
|
1276 |
Result := true;
|
1277 |
end;
|
1278 |
end;
|
1279 |
|
1280 |
procedure TStContainer.ForEachPointer(Action : TIteratePointerFunc;
|
1281 |
OtherData : pointer);
|
1282 |
begin
|
1283 |
{do nothing}
|
1284 |
end;
|
1285 |
|
1286 |
procedure TStContainer.ForEachUntypedVar(Action : TIterateUntypedFunc;
|
1287 |
OtherData : pointer);
|
1288 |
begin
|
1289 |
{do nothing}
|
1290 |
end;
|
1291 |
|
1292 |
procedure TStContainer.GetArraySizes(var RowCount, ColCount, ElSize : Cardinal);
|
1293 |
begin
|
1294 |
RowCount := 0;
|
1295 |
ColCount := 0;
|
1296 |
ElSize := 0;
|
1297 |
end;
|
1298 |
|
1299 |
procedure TStContainer.SetArraySizes(RowCount, ColCount, ElSize : Cardinal);
|
1300 |
begin
|
1301 |
{do nothing}
|
1302 |
end;
|
1303 |
|
1304 |
procedure TStContainer.SetCompare(C : TCompareFunc);
|
1305 |
begin
|
1306 |
FCompare := C;
|
1307 |
end;
|
1308 |
|
1309 |
procedure TStContainer.SetDisposeData(D : TDisposeDataProc);
|
1310 |
begin
|
1311 |
FDisposeData := D;
|
1312 |
end;
|
1313 |
|
1314 |
procedure TStContainer.SetLoadData(L : TLoadDataFunc);
|
1315 |
begin
|
1316 |
FLoadData := L;
|
1317 |
end;
|
1318 |
|
1319 |
procedure TStContainer.SetStoreData(S : TStoreDataProc);
|
1320 |
begin
|
1321 |
FStoreData := S;
|
1322 |
end;
|
1323 |
|
1324 |
function TStContainer.StoresPointers : boolean;
|
1325 |
begin
|
1326 |
Result := false;
|
1327 |
end;
|
1328 |
|
1329 |
function TStContainer.StoresUntypedVars : boolean;
|
1330 |
begin
|
1331 |
Result := false;
|
1332 |
end;
|
1333 |
|
1334 |
constructor TStContainer.CreateContainer(NodeClass : TStNodeClass; Dummy : Integer);
|
1335 |
begin
|
1336 |
{$IFDEF ThreadSafe}
|
1337 |
Windows.InitializeCriticalSection(conThreadSafe);
|
1338 |
{$ENDIF}
|
1339 |
|
1340 |
FCompare := AbstractCompare;
|
1341 |
conNodeClass := NodeClass;
|
1342 |
|
1343 |
inherited Create;
|
1344 |
end;
|
1345 |
|
1346 |
procedure TStContainer.DecNodeProtection;
|
1347 |
begin
|
1348 |
Dec(conNodeProt);
|
1349 |
end;
|
1350 |
|
1351 |
destructor TStContainer.Destroy;
|
1352 |
begin
|
1353 |
if conNodeProt = 0 then
|
1354 |
Clear;
|
1355 |
{$IFDEF ThreadSafe}
|
1356 |
Windows.DeleteCriticalSection(conThreadSafe);
|
1357 |
{$ENDIF}
|
1358 |
inherited Destroy;
|
1359 |
end;
|
1360 |
|
1361 |
procedure TStContainer.DisposeNodeData(P : TStNode);
|
1362 |
begin
|
1363 |
{$IFDEF ThreadSafe}
|
1364 |
EnterCS;
|
1365 |
try
|
1366 |
{$ENDIF}
|
1367 |
if Assigned(P) then
|
1368 |
DoDisposeData(P.Data);
|
1369 |
{$IFDEF ThreadSafe}
|
1370 |
finally
|
1371 |
LeaveCS;
|
1372 |
end;
|
1373 |
{$ENDIF}
|
1374 |
end;
|
1375 |
|
1376 |
function TStContainer.DoCompare(Data1, Data2 : Pointer) : Integer;
|
1377 |
begin
|
1378 |
Result := 0;
|
1379 |
if Assigned(FOnCompare) then
|
1380 |
FOnCompare(Self, Data1, Data2, Result)
|
1381 |
else if Assigned(FCompare) then
|
1382 |
Result := FCompare(Data1, Data2);
|
1383 |
end;
|
1384 |
|
1385 |
procedure TStContainer.DoDisposeData(Data : Pointer);
|
1386 |
begin
|
1387 |
if Assigned(FOnDisposeData) then
|
1388 |
FOnDisposeData(Self, Data)
|
1389 |
else if Assigned(FDisposeData) then
|
1390 |
FDisposeData(Data);
|
1391 |
end;
|
1392 |
|
1393 |
function TStContainer.DoLoadData(Reader : TReader) : Pointer;
|
1394 |
begin
|
1395 |
Result := nil;
|
1396 |
if Assigned(FOnLoadData) then
|
1397 |
FOnLoadData(Self, Reader, Result)
|
1398 |
else if Assigned(FLoadData) then
|
1399 |
Result := FLoadData(Reader)
|
1400 |
else
|
1401 |
RaiseContainerError(stscNoLoadData);
|
1402 |
end;
|
1403 |
|
1404 |
procedure TStContainer.DoStoreData(Writer : TWriter; Data : Pointer);
|
1405 |
begin
|
1406 |
if Assigned(FOnStoreData) then
|
1407 |
FOnStoreData(Self, Writer, Data)
|
1408 |
else if Assigned(FStoreData) then
|
1409 |
FStoreData(Writer, Data)
|
1410 |
else
|
1411 |
RaiseContainerError(stscNoStoreData);
|
1412 |
end;
|
1413 |
|
1414 |
procedure TStContainer.EnterCS;
|
1415 |
begin
|
1416 |
{$IFDEF ThreadSafe}
|
1417 |
EnterCriticalSection(conThreadSafe);
|
1418 |
{$ENDIF}
|
1419 |
end;
|
1420 |
|
1421 |
procedure TStContainer.IncNodeProtection;
|
1422 |
begin
|
1423 |
Inc(conNodeProt);
|
1424 |
end;
|
1425 |
|
1426 |
procedure TStContainer.LeaveCS;
|
1427 |
begin
|
1428 |
{$IFDEF ThreadSafe}
|
1429 |
LeaveCriticalSection(conThreadSafe);
|
1430 |
{$ENDIF}
|
1431 |
end;
|
1432 |
|
1433 |
procedure TStContainer.LoadFromFile(const FileName : string);
|
1434 |
var
|
1435 |
S : TStream;
|
1436 |
begin
|
1437 |
S := TFileStream.Create(FileName, fmOpenRead + fmShareDenyWrite);
|
1438 |
try
|
1439 |
LoadFromStream(S);
|
1440 |
finally
|
1441 |
S.Free;
|
1442 |
end;
|
1443 |
end;
|
1444 |
|
1445 |
procedure TStContainer.StoreToFile(const FileName : string);
|
1446 |
var
|
1447 |
S : TStream;
|
1448 |
begin
|
1449 |
S := TFileStream.Create(FileName, fmCreate);
|
1450 |
try
|
1451 |
StoreToStream(S);
|
1452 |
finally
|
1453 |
S.Free;
|
1454 |
end;
|
1455 |
end;
|
1456 |
|
1457 |
|
1458 |
{*** TStComponent ***}
|
1459 |
|
1460 |
function TStComponent.GetVersion : string;
|
1461 |
begin
|
1462 |
Result := StVersionStr;
|
1463 |
end;
|
1464 |
|
1465 |
procedure TStComponent.SetVersion(const Value : string);
|
1466 |
begin
|
1467 |
end;
|
1468 |
|
1469 |
{ TStBaseEdit }
|
1470 |
|
1471 |
function TStBaseEdit.GetVersion : string;
|
1472 |
begin
|
1473 |
Result := StVersionStr;
|
1474 |
end;
|
1475 |
|
1476 |
procedure TStBaseEdit.SetVersion(const Value : string);
|
1477 |
begin
|
1478 |
end;
|
1479 |
|
1480 |
|
1481 |
|
1482 |
initialization
|
1483 |
{$IFDEF VERSION3ONLY} { Delphi/Builder 3 doesn't like widestring typed constants }
|
1484 |
StHexDigitsW := '0123456789ABCDEF';
|
1485 |
DosDelimSetW := '\:';
|
1486 |
{$ENDIF}
|
1487 |
end.
|
1488 |
|
1489 |
|