mirror of
https://github.com/HeidiSQL/HeidiSQL.git
synced 2025-08-06 18:24:26 +08:00
4ff1acf408
* Replace the pulldown by a list to get a better overview * Display last connected and created date in details * Prompt user on form closing if modifications should be saved * Remove moreorless useless image * Remove options "timeout" and "sort database" TODO: Display some help text on the right side when no session at all is existant to help new users.
3021 lines
90 KiB
ObjectPascal
3021 lines
90 KiB
ObjectPascal
unit helpers;
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// -------------------------------------
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// Functions-library
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// -------------------------------------
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interface
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uses Classes, SysUtils, Graphics, db, clipbrd, dialogs,
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forms, controls, ShellApi, checklst, windows, ZDataset, ZAbstractDataset,
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shlobj, ActiveX, WideStrUtils, VirtualTrees, SynRegExpr, Messages, WideStrings,
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TntCheckLst, Registry, SynEditHighlighter, mysql_structures, DateUtils;
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type
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TListNodeType = (lntNone, lntDb, lntTable, lntCrashedTable, lntView, lntFunction, lntProcedure, lntColumn);
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TListNode = record
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Text: WideString;
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NodeType: TListNodeType;
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end;
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// Define a record which can hold everything we need for one row / node in a VirtualStringTree
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TVTreeData = record
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Captions: TWideStringList;
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ImageIndex: Integer;
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NodeType: TListNodeType;
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end;
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PVTreedata = ^TVTreeData;
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// Standardize the list with node-data-records to be able to
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// use this type as variables in functions/procedures (fx VT.OnFreeNode)
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TVTreeDataArray = Array of TVTreeData;
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PVTreeDataArray = ^TVTreeDataArray;
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TFileCharset = (fcsAnsi, fcsUnicode, fcsUnicodeSwapped, fcsUtf8);
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TUniClipboard = class(TClipboard)
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private
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procedure SetAsWideString(Value: WideString);
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function GetAsWideString:WideString;
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public
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property AsWideString: WideString read GetAsWideString write SetAsWideString;
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end;
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// Structures for result grids, mapped from a TDataset to some handy VirtualTree structure
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TGridCell = record
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Text: WideString;
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NewText: WideString; // Used to create UPDATE clauses with needed columns
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IsNull: Boolean;
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NewIsNull: Boolean;
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Modified: Boolean;
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end;
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PGridCell = ^TGridCell;
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TGridColumn = record
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Name: WideString;
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Datatype: TDatatypeIndex; // @see mysql_structures.pas
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DatatypeCat: TDatatypeCategoryIndex;
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MaxLength: Cardinal;
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IsPriPart: Boolean;
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ValueList: TWideStringList;
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end;
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PGridColumn = ^TGridColumn;
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TGridColumns = Array of TGridColumn;
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// Delphi reminder, from Rudy Velthuis (usenet):
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// Records and arrays are passed as pointers, but in the preamble of the
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// called function the pointed-to data is copied onto the stack. So either
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// use "const x: TBlah" to pass by reference, or create a pointer type.
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// Objects are passed as pointers.
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// (Orthogonal to this, when specifying "var", a pointer (possibly to a pointer)
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// is passed, allowing the called function to alter the caller's reference.)
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PGridColumns = ^TGridColumns;
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TGridRowState = (grsDefault, grsDeleted, grsModified, grsInserted);
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TGridRow = packed record
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Cells: Array of TGridCell;
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State: TGridRowState;
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Loaded: Boolean;
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end;
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PGridRow = ^TGridRow;
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TGridRows = Array of TGridRow;
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TGridResult = class(TObject)
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Rows: TGridRows;
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Columns: TGridColumns;
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end;
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TOrderCol = class(TObject)
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ColumnName: WideString;
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SortDirection: Byte;
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end;
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TOrderColArray = Array of TOrderCol;
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TLineBreaks = (lbsNone, lbsWindows, lbsUnix, lbsMac, lbsWide, lbsMixed);
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{$I const.inc}
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function implodestr(seperator: WideString; a: TWideStringList) :WideString;
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function explode(separator, a: WideString) :TWideStringList;
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procedure ensureValidIdentifier(name: String);
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function getEnumValues(str: WideString): WideString;
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function parsesql(sql: WideString) : TWideStringList;
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function sstr(str: WideString; len: Integer) : WideString;
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function encrypt(str: String): String;
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function decrypt(str: String): String;
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function htmlentities(str: WideString): WideString;
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procedure GridToHtml(Grid: TVirtualStringTree; Title: WideString; S: TStream);
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procedure GridToCsv(Grid: TVirtualStringTree; Separator, Encloser, Terminator: String; S: TStream);
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procedure GridToXml(Grid: TVirtualStringTree; root: WideString; S: TStream);
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procedure GridToSql(Grid: TVirtualStringTree; Tablename: WideString; S: TStream);
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function esc2ascii(str: String): String;
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function StrCmpBegin(Str1, Str2: string): Boolean;
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function Max(A, B: Integer): Integer; assembler;
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function Min(A, B: Integer): Integer; assembler;
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function urlencode(url: String): String;
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function openfs(filename: String): TFileStream;
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procedure wfs( var s: TFileStream; str: WideString = '');
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procedure StreamWrite(S: TStream; Text: WideString = '');
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function fixSQL( sql: WideString; sql_version: Integer = SQL_VERSION_ANSI; cli_workarounds: Boolean = false ): WideString;
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procedure ToggleCheckListBox(list: TTNTCheckListBox; state: Boolean); Overload;
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procedure ToggleCheckListBox(list: TTNTCheckListBox; state: Boolean; list_toggle: TWideStringList); Overload;
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function _GetFileSize(filename: String): Int64;
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function Mince(PathToMince: String; InSpace: Integer): String;
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function MakeInt( Str: String ) : Int64;
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function MakeFloat( Str: String ): Extended;
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function FloatStr(Val: String): String;
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function esc(Text: WideString; ProcessJokerChars: Boolean = false; sql_version: integer = 50000): WideString;
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function ScanNulChar(Text: WideString): Boolean;
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function ScanLineBreaks(Text: WideString): TLineBreaks;
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function RemoveNulChars(Text: WideString): WideString;
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procedure debug(txt: String);
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function fixNewlines(txt: string): string;
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function BoolToStr(val: Boolean): String;
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function StrToBool(val: String): Boolean;
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function GetShellFolder(CSIDL: integer): string;
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function getFilesFromDir( dir: String; pattern: String = '*.*'; hideExt: Boolean = false ): TStringList;
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function goodfilename( str: String ): String;
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function FormatNumber( str: String ): String; Overload;
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function FormatNumber( int: Int64 ): String; Overload;
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function FormatNumber( flt: Double; decimals: Integer = 0 ): String; Overload;
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procedure setLocales;
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function maskSql(sql_version: integer; str: WideString) : WideString;
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procedure ActivateWindow(Window : HWnd);
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function GetApplication(MainForm: HWnd): HWnd;
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procedure ActivateMainForm(MainForm: HWnd);
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procedure ShellExec( cmd: String; path: String = '' );
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function getFirstWord( text: String ): String;
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function ConvertWindowsCodepageToMysqlCharacterSet(codepage: Cardinal): string;
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function LastPos(needle: WideChar; haystack: WideString): Integer;
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function ConvertServerVersion( Version: Integer ): String;
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function FormatByteNumber( Bytes: Int64; Decimals: Byte = 1 ): String; Overload;
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function FormatByteNumber( Bytes: String; Decimals: Byte = 1 ): String; Overload;
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function FormatTimeNumber( Seconds: Cardinal ): String;
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function TColorToHex( Color : TColor ): string;
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function GetVTCaptions( VT: TVirtualStringTree; OnlySelected: Boolean = False; Column: Integer = 0; OnlyNodeType: TListNodeType = lntNone ): TWideStringList;
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procedure SetVTSelection( VT: TVirtualStringTree; Selected: TWideStringList );
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function Pos2(const Needle, HayStack: string; const StartPos: Integer) : Integer;
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function GetTempDir: String;
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function GetDBObjectType( TableStatus: TFields ): TListNodeType;
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procedure SetWindowSizeGrip(hWnd: HWND; Enable: boolean);
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procedure SaveUnicodeFile(Filename: String; Text: WideString);
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function CreateUnicodeFileStream(Filename: String): TFileStream;
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procedure OpenTextFile(const Filename: String; out Stream: TFileStream; out FileCharset: TFileCharset);
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function GetFileCharset(Stream: TFileStream): TFileCharset;
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function ReadTextfileChunk(Stream: TFileStream; FileCharset: TFileCharset; ChunkSize: Int64 = 0): WideString;
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function ReadTextfile(Filename: String): WideString;
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function ReadBinaryFile(Filename: String; MaxBytes: Int64): string;
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procedure CopyToClipboard(Value: WideString);
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procedure StreamToClipboard(S: TMemoryStream);
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function WideHexToBin(text: WideString): string;
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function BinToWideHex(bin: string): WideString;
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procedure CheckHex(text: WideString; errorMessage: string);
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procedure FixVT(VT: TVirtualStringTree);
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function ColorAdjustBrightness(Col: TColor; ShiftPercent: ShortInt): TColor;
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function ComposeOrderClause(Cols: TOrderColArray): WideString;
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procedure OpenRegistry(Session: String = '');
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function GetRegValue( valueName: String; defaultValue: Integer; Session: String = '' ) : Integer; Overload;
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function GetRegValue( valueName: String; defaultValue: Boolean; Session: String = '' ) : Boolean; Overload;
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function GetRegValue( valueName: String; defaultValue: String; Session: String = '' ) : String; Overload;
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procedure ResetVTNodes(Sender: TBaseVirtualTree);
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procedure EnableProgressBar(MaxValue: Integer);
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function CompareNumbers(List: TStringList; Index1, Index2: Integer): Integer;
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function ListIndexByRegExpr(List: TWideStrings; Expression: WideString): Integer;
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procedure RestoreSyneditStyles(Highlighter: TSynCustomHighlighter);
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procedure SelectNode(VT: TVirtualStringTree; idx: Cardinal; ParentNode: PVirtualNode=nil);
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function DateBackFriendlyCaption(d: TDateTime): String;
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var
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MainReg : TRegistry;
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implementation
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uses main, uVistaFuncs;
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type
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CharacterSet = record
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codepage: Cardinal;
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charset: string;
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end;
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TWndProc = function (hWnd: HWND; Msg: UINT; wParam: WPARAM; lParam: LPARAM): LRESULT; stdcall;
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PGripInfo = ^TGripInfo;
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TGripInfo = record
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OldWndProc: TWndProc;
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Enabled: boolean;
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GripRect: TRect;
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end;
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const
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charset_conv_table: array[0..7] of CharacterSet = (
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(codepage: 1250; charset: 'cp1250'), // ANSI Central European; Central European (Windows)
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(codepage: 1251; charset: 'cp1251'), // ANSI Cyrillic; Cyrillic (Windows)
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(codepage: 1252; charset: 'latin1'), // ANSI Latin 1; Western European (Windows)
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(codepage: 1255; charset: 'hebrew'), // ANSI Hebrew; Hebrew (Windows)
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(codepage: 1256; charset: 'cp1256'), // ANSI Arabic; Arabic (Windows)
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(codepage: 1257; charset: 'cp1257'), // ANSI Baltic; Baltic (Windows)
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(codepage: 936; charset: 'gbk'), // Windows Simplified Chinese GBK
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(codepage: 950; charset: 'big5') // Windows Chinese Big5
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);
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SizeGripProp = 'SizeGrip';
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var
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dbgCounter: Integer = 0;
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DecimalSeparatorSystemdefault: Char;
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function WideHexToBin(text: WideString): string;
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var
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buf: string;
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begin
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buf := text;
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Result := StringOfChar(' ', Length(text) div 2);
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HexToBin(@buf[1], @Result[1], Length(Result));
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end;
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function BinToWideHex(bin: string): WideString;
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var
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buf: string;
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begin
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buf := StringOfChar(' ', Length(bin) * 2);
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BinToHex(@bin[1], @buf[1], Length(bin));
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Result := buf;
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end;
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procedure CheckHex(text: WideString; errorMessage: string);
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const
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allowed: string = '0123456789abcdefABCDEF';
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var
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i: Cardinal;
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begin
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for i := 1 to Length(text) do begin
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if Pos(text[i], allowed) < 1 then begin
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raise Exception.Create(errorMessage);
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end;
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end;
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end;
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{***
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Convert a TStringList to a string using a separator-string
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@todo Look at each caller to see if escaping is necessary.
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@param string Separator
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@param a TStringList Containing strings
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@return string
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}
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function implodestr(seperator: WideString; a: TWideStringList) :WideString;
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var
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i : Integer;
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begin
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Result := '';
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for i:=0 to a.Count-1 do
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begin
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Result := Result + a[i];
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if i < a.Count-1 then
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Result := Result + seperator;
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end;
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end;
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{***
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Explode a string by separator into a TStringList
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@param string Separator
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@return TStringList
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}
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function explode(separator, a: WideString) :TWideStringList;
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var
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i : Integer;
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item : WideString;
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begin
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result := TWideStringList.Create;
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i := pos(separator, a);
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while i > 0 do begin
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item := copy(a, 0, i-1);
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item := trim(item);
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result.Add(item);
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a := copy(a, i+length(separator), length(a));
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i := pos(separator, a);
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end;
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if a <> '' then
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result.Add(trim(a));
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end;
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{***
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Check for valid identifier (table-/db-/column-name) ?
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@param string Identifier
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@return boolean Name is valid?
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@note rosenfield, 2007-02-01:
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Those certain characters are standard filesystem wildcards * ?,
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pipe redirection characters | < >, standard path separators / \,
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Windows mount point identifiers :, DBMS security / container separator
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characters . and so on. In other words, characters that may or may
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not be allowed by MySQL and the underlying filesystem, but which are
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really, really, really stupid to use in a table name, since you'll
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get into trouble once trying to use the table/db in a query or move it
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to a different filesystem, or what not.
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@note ansgarbecker, 2007-02-01:
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Since mysql 5.1.6 those problematic characters are encoded in
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a hexadecimal manner if they apply to a file (table) or folder (database)
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But after testing that by renaming a table to a name with a dot
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I still get an error, so we currently should be careful also on a 5.1.6+
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@see http://dev.mysql.com/doc/refman/5.1/en/identifier-mapping.html
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}
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procedure ensureValidIdentifier( name: String );
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var
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i : Integer;
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invalidChars, invalidCharsShown : String;
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isToolong, hasInvalidChars : Boolean;
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msgStr : String;
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begin
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isToolong := false;
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hasInvalidChars := false;
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// Check length
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if (length(name) < 1) or (length(name) > 64) then
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isToolong := true;
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// Check for invalid chars
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invalidChars := '\/:*?"<>|.';
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for i:=1 to length(name) do
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begin
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if (pos( name[i], invalidChars ) > 0 ) then
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begin
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hasInvalidChars := true;
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break;
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end;
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end;
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// Raise exception which explains what's wrong
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if isTooLong or hasInvalidChars then
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begin
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if hasInvalidChars then
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begin
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// Add space between chars for better readability
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invalidCharsShown := '';
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for i:=1 to length(invalidChars) do
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begin
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invalidCharsShown := invalidCharsShown + invalidChars[i] + ' ';
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end;
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msgStr := 'The name "%s" contains some invalid characters.'+
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CRLF+CRLF + 'An identifier must not contain the following characters:'+CRLF+invalidCharsShown;
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end
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else if isToolong then
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begin
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msgStr := 'The name "%s" has '+IntToStr(Length(name))
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+' characters and exceeds the maximum length of 64 characters.';
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end;
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Raise Exception.CreateFmt(msgStr, [name]);
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end;
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end;
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{***
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Get values from an enum- or set-typed column definition
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@param string Type definition, fx: enum('Y','N')
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@return string Content of brackets
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}
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function getEnumValues(str: WideString): WideString;
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var
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p1,p2 : Integer;
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begin
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p1 := pos('(', str);
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Result := '';
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// Only return something if opening bracket was found, otherwise empty string
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if p1 > 0 then
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begin
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for p2:=Length(str) downto 0 do
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if str[p2] = ')' then break;
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result := copy (str, p1+1, p2-p1-1);
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end;
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end;
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{***
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Add a non-empty value to a Stringlist
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@param TStringList
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@param string to add
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@param string to enclose added string in (use %s)
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@return void
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}
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procedure addResult(list: TWideStringList; s: WideString; enclose: WideString = '');
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begin
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s := trim(s);
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if length(s) > 0 then begin
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if enclose <> '' then s := WideFormat(enclose, [s]);
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list.Add(s);
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end;
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// Avoid memory leak
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s := '';
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end;
|
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|
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|
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{***
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Return true if given character represents whitespace.
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Limitations: only recognizes ANSI whitespace.
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Eligible for inlining, hope the compiler does this automatically.
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}
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function isWhitespace(const c: WideChar): boolean;
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begin
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result :=
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(c = #9) or
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(c = #10) or
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(c = #13) or
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(c = #32)
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;
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end;
|
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|
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|
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{***
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Return true if given character represents a number.
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Limitations: only recognizes ANSI numerals.
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||
Eligible for inlining, hope the compiler does this automatically.
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||
}
|
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function isNumber(const c: WideChar): boolean;
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||
var
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||
b: word;
|
||
begin
|
||
b := ord(c);
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result :=
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(b >= 48) and
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(b <= 57)
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;
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end;
|
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|
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|
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|
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{***
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Scan backwards, returning true if SQL matches the given string case sensitively.
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Limitations: in case insensitive mode, input must be ANSI and lower case (for speed).
|
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Eligible for inlining, hope the compiler does this automatically.
|
||
}
|
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function scanReverse(const haystack: WideString; hayIndex: integer; const needle: WideString; needleEnd: integer; insensitive: boolean): boolean;
|
||
var
|
||
b: word;
|
||
c: widechar;
|
||
begin
|
||
while (hayIndex > 0) and (needleEnd > 0) do begin
|
||
// Lowercase ANSI A-Z if requested.
|
||
if insensitive then begin
|
||
b := Ord(haystack[hayIndex]);
|
||
if (b > 64) and (b < 91) then b := b - 65 + 97;
|
||
c := WideChar(b);
|
||
end else c := haystack[hayIndex];
|
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if c <> needle[needleEnd] then begin
|
||
result := false;
|
||
exit;
|
||
end;
|
||
needleEnd := needleEnd - 1;
|
||
hayIndex := hayIndex - 1;
|
||
end;
|
||
result := needleEnd = 0;
|
||
end;
|
||
|
||
|
||
|
||
{***
|
||
Tokenize sql-script and return a TStringList with sql-statements
|
||
|
||
@param String (possibly large) bunch of SQL-statements, separated by semicolon
|
||
@param String SQL start delimiter
|
||
@return TStringList Separated statements
|
||
}
|
||
function parsesql(sql: WideString) : TWideStringList;
|
||
var
|
||
i, j, start, len : Integer;
|
||
tmp : WideString;
|
||
instring, backslash, incomment : Boolean;
|
||
inconditional, condterminated : Boolean;
|
||
inbigcomment, indelimiter : Boolean;
|
||
delimiter_length : Integer;
|
||
encloser, secchar, thdchar : WideChar;
|
||
conditional : WideString;
|
||
begin
|
||
result := TWideStringList.Create;
|
||
sql := trim(sql);
|
||
instring := false;
|
||
start := 1;
|
||
len := length(sql);
|
||
backslash := false;
|
||
incomment := false;
|
||
inbigcomment := false;
|
||
inconditional := false;
|
||
condterminated := false;
|
||
indelimiter := false;
|
||
encloser := ' ';
|
||
conditional := '';
|
||
|
||
i := 0;
|
||
while i < len do begin
|
||
i := i + 1;
|
||
|
||
// Helpers for multi-character tests, avoids testing for string length.
|
||
secchar := '+';
|
||
thdchar := '+';
|
||
if i < length(sql) then secchar := sql[i + 1];
|
||
if i + 1 < length(sql) then thdchar := sql[i + 2];
|
||
|
||
// Turn comments into whitespace.
|
||
if (sql[i] = '#') and (not instring) and (not inbigcomment) then begin
|
||
incomment := true;
|
||
end;
|
||
if (sql[i] + secchar = '--') and (not instring) and (not inbigcomment) then begin
|
||
incomment := true;
|
||
sql[i] := ' ';
|
||
if start = i then start := start + 1;
|
||
i := i + 1;
|
||
end;
|
||
if (sql[i] + secchar = '/*') and (not (thdchar = '!')) and (not instring) and (not incomment) then begin
|
||
inbigcomment := true;
|
||
incomment := true;
|
||
sql[i] := ' ';
|
||
if start = i then start := start + 1;
|
||
i := i + 1;
|
||
end;
|
||
if incomment and (not inbigcomment) and (sql[i] in [WideChar(#13), WideChar(#10)]) then begin
|
||
incomment := false;
|
||
end;
|
||
if inbigcomment and (sql[i] + secchar = '*/') then begin
|
||
inbigcomment := false;
|
||
incomment := false;
|
||
sql[i] := ' ';
|
||
if start = i then start := start + 1;
|
||
i := i + 1;
|
||
sql[i] := ' ';
|
||
end;
|
||
if incomment or inbigcomment then begin
|
||
sql[i] := ' ';
|
||
end;
|
||
|
||
// Skip whitespace immediately if at start of sentence.
|
||
if (start = i) and isWhitespace(sql[i]) then begin
|
||
start := start + 1;
|
||
if i < len then continue;
|
||
end;
|
||
|
||
// Avoid parsing stuff inside string literals.
|
||
if (sql[i] in [WideChar(''''), WideChar('"'), WideChar('`')]) and (not (backslash and instring)) and (not incomment) and (not indelimiter) then begin
|
||
if instring and (sql[i] = encloser) then begin
|
||
if secchar = encloser then
|
||
i := i + 1 // encoded encloser-char
|
||
else
|
||
instring := not instring // string closed
|
||
end
|
||
else if not instring then begin // string is following
|
||
instring := true;
|
||
encloser := sql[i]; // remember enclosing-character
|
||
end;
|
||
if i < len then continue;
|
||
end;
|
||
|
||
if (instring and (sql[i] = '\')) or backslash then
|
||
backslash := not backslash;
|
||
|
||
// Allow a DELIMITER command in middle of SQL, like the MySQL CLI does.
|
||
if (not instring) and (not incomment) and (not inconditional) and (not indelimiter) and (start + 8 = i) and scanReverse(sql, i, 'delimiter', 9, true) then begin
|
||
// The allowed DELIMITER format is:
|
||
// <delimiter> <whitespace(s)> <character(s)> <whitespace(s)> <newline>
|
||
if isWhitespace(secchar) then begin
|
||
indelimiter := true;
|
||
i := i + 1;
|
||
if i < len then continue;
|
||
end;
|
||
end;
|
||
|
||
if indelimiter then begin
|
||
if (sql[i] in [WideChar(#13), WideChar(#10)]) or (i = len) then begin
|
||
if (i = len) then j := 1 else j := 0;
|
||
try
|
||
Mainform.Delimiter := copy(sql, start + 10, i + j - (start + 10));
|
||
except on E:Exception do if Mainform.actQueryStopOnErrors.Checked then
|
||
raise Exception.Create(E.Message);
|
||
end;
|
||
indelimiter := false;
|
||
start := i + 1;
|
||
end;
|
||
if i < len then continue;
|
||
end;
|
||
|
||
// Handle conditional comments.
|
||
if (not instring) and (not incomment) and (sql[i] + secchar + thdchar = '/*!') then begin
|
||
inconditional := true;
|
||
condterminated := false;
|
||
tmp := '';
|
||
conditional := '';
|
||
i := i + 2;
|
||
if i < len then continue;
|
||
end;
|
||
|
||
if inconditional and (conditional = '') then begin
|
||
if not isNumber(sql[i]) then begin
|
||
conditional := tmp;
|
||
// note:
|
||
// we do not trim the start of the SQL inside conditional
|
||
// comments like we do on non-commented sql.
|
||
if i < len then continue;
|
||
end else tmp := tmp + sql[i];
|
||
end;
|
||
|
||
if inconditional and (not instring) and (not incomment) and (sql[i] + secchar = '*/') then begin
|
||
inconditional := false;
|
||
if condterminated then begin
|
||
// at least one statement was terminated inside the conditional.
|
||
// if the conditional had no more contents after that statement,
|
||
// clear the end marker. otherwise, add a new start marker.
|
||
if trim(copy(sql, start, i - start)) = '' then begin
|
||
sql[i] := ' ';
|
||
i := i + 1;
|
||
sql[i] := ' ';
|
||
start := i + 1;
|
||
end else begin
|
||
tmp := '/*!' + conditional + ' ';
|
||
move(tmp[1], sql[start - length(tmp)], length(tmp));
|
||
start := start - length(tmp);
|
||
end;
|
||
condterminated := false;
|
||
end else begin
|
||
if start = i then start := start + 1;
|
||
i := i + 1;
|
||
end;
|
||
if i < len then continue;
|
||
end;
|
||
|
||
// Add sql sentence.
|
||
delimiter_length := Length(Mainform.Delimiter);
|
||
if ((not instring) and (scanReverse(sql, i, Mainform.Delimiter, delimiter_length, false)) or (i = len)) then begin
|
||
if (i < len) then j := delimiter_length else begin
|
||
// end of string, add sql sentence but only remove delimiter if it's there
|
||
if scanReverse(sql, i, Mainform.Delimiter, delimiter_length, false) then j := delimiter_length else j := 0;
|
||
end;
|
||
if inconditional then begin
|
||
addResult(result, copy(sql, start, i - start - j + 1), '%s */');
|
||
condterminated := true;
|
||
end else begin
|
||
addResult(result, copy(sql, start, i - start - j + 1));
|
||
end;
|
||
start := i + 1;
|
||
end;
|
||
end;
|
||
|
||
// Avoid memory leak
|
||
sql := '';
|
||
end;
|
||
|
||
|
||
|
||
{***
|
||
Shorten string to length len and append 3 dots
|
||
|
||
@param string String to shorten
|
||
@param integer Wished Length of string
|
||
@return string
|
||
}
|
||
function sstr(str: WideString; len: Integer) : WideString;
|
||
begin
|
||
if length(str) > len then
|
||
begin
|
||
str := copy(str, 0, len-1);
|
||
str := str + '<27>';
|
||
end;
|
||
result := str;
|
||
end;
|
||
|
||
|
||
|
||
{***
|
||
Password-encryption, used to store session-passwords in registry
|
||
|
||
@param string Text to encrypt
|
||
@return string Encrypted Text
|
||
}
|
||
function encrypt(str: String) : String;
|
||
var
|
||
i, salt, nr : integer;
|
||
h : String;
|
||
begin
|
||
randomize();
|
||
result := '';
|
||
salt := random(9) + 1;
|
||
for i:=1 to length(str) do begin
|
||
nr := ord(str[i])+salt;
|
||
if nr > 255 then
|
||
nr := nr - 255;
|
||
h := inttohex(nr,0);
|
||
if length(h) = 1 then
|
||
h := '0' + h;
|
||
result := result + h;
|
||
end;
|
||
result := result + inttostr(salt);
|
||
end;
|
||
|
||
|
||
|
||
{***
|
||
Password-decryption, used to restore session-passwords from registry
|
||
|
||
@param string Text to decrypt
|
||
@return string Decrypted Text
|
||
}
|
||
function decrypt(str: String) : String;
|
||
var
|
||
j, salt, nr : integer;
|
||
begin
|
||
result := '';
|
||
if str = '' then exit;
|
||
j := 1;
|
||
salt := StrToIntDef(str[length(str)],0);
|
||
result := '';
|
||
while j < length(str)-1 do begin
|
||
nr := StrToInt('$' + str[j] + str[j+1]) - salt;
|
||
if nr < 0 then
|
||
nr := nr + 255;
|
||
result := result + chr(nr);
|
||
inc(j, 2);
|
||
end;
|
||
end;
|
||
|
||
|
||
|
||
{***
|
||
Convert HTML-characters to their corresponding entities
|
||
|
||
@param string Text used for search+replace
|
||
@return string Text with entities
|
||
}
|
||
function htmlentities(str: WideString) : WideString;
|
||
begin
|
||
result := WideStringReplace(str, '&', '&', [rfReplaceAll]);
|
||
result := WideStringReplace(result, '<', '<', [rfReplaceAll]);
|
||
result := WideStringReplace(result, '>', '>', [rfReplaceAll]);
|
||
end;
|
||
|
||
|
||
procedure ExportStatusMsg(Node: PVirtualNode; RootNodeCount: Cardinal; StreamSize: Int64);
|
||
begin
|
||
Mainform.Showstatus('Exporting row '+FormatNumber(Node.Index+1)+' of '+FormatNumber(RootNodeCount)+
|
||
' ('+IntToStr(Trunc((Node.Index+1) / RootNodeCount *100))+'%, '+FormatByteNumber(StreamSize)+')'
|
||
);
|
||
Mainform.ProgressBarStatus.Position := Node.Index+1;
|
||
end;
|
||
|
||
|
||
{***
|
||
Converts a Grid to a HTML-Table.
|
||
@param Grid Object which holds data to export
|
||
@param string Text used in <title>
|
||
}
|
||
procedure GridToHtml(Grid: TVirtualStringTree; Title: WideString; S: TStream);
|
||
var
|
||
i, MaxSize: Integer;
|
||
tmp, Data, Generator: WideString;
|
||
Node: PVirtualNode;
|
||
GridData: TGridResult;
|
||
begin
|
||
GridData := Mainform.GridResult(Grid);
|
||
if Grid = Mainform.DataGrid then begin
|
||
// Discard all loaded data so EnsureChunkLoaded refetches it with full content lengths.
|
||
// This makes it superflous to call EnsureFullWidth and to have a unique key
|
||
for i := 0 to Length(GridData.Rows) - 1 do
|
||
GridData.Rows[i].Loaded := False;
|
||
end;
|
||
|
||
MaxSize := GetRegValue(REGNAME_COPYMAXSIZE, DEFAULT_COPYMAXSIZE) * SIZE_MB;
|
||
EnableProgressBar(Grid.RootNodeCount);
|
||
Generator := APPNAME+' '+FullAppVersion;
|
||
tmp :=
|
||
'<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" ' + CRLF +
|
||
' "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">' + CRLF + CRLF +
|
||
'<html>' + CRLF +
|
||
' <head>' + CRLF +
|
||
' <title>' + Title + '</title>' + CRLF +
|
||
' <meta name="GENERATOR" content="'+ Generator + '">' + CRLF +
|
||
' <style type="text/css">' + CRLF +
|
||
' thead tr {background-color: ActiveCaption; color: CaptionText;}' + CRLF +
|
||
' th, td {vertical-align: top; font-family: "'+Grid.Font.Name+'"; font-size: '+IntToStr(Grid.Font.Size)+'pt; padding: '+IntToStr(Grid.TextMargin-1)+'px; }' + CRLF +
|
||
' table, td {border: 1px solid silver;}' + CRLF +
|
||
' table {border-collapse: collapse;}' + CRLF;
|
||
for i:=0 to Length(GridData.Columns) - 1 do begin
|
||
// Skip hidden key columns.
|
||
if not (coVisible in Grid.Header.Columns[i].Options) then
|
||
Continue;
|
||
// Adjust preferred width of columns.
|
||
tmp := tmp +
|
||
' thead .col' + IntToStr(i) + ' {width: ' + IntToStr(Grid.Header.Columns[i].Width) + 'px;}' + CRLF;
|
||
// Right-justify all cells to match the grid on screen.
|
||
if Grid.Header.Columns[i].Alignment = taRightJustify then
|
||
tmp := tmp +
|
||
' .col' + IntToStr(i) + ' {text-align: right;}' + CRLF;
|
||
end;
|
||
// Note for above:
|
||
// Indentation seems to be a mess. I think we should stick to putting long lines on one line,
|
||
// and just let the editor figure out how to break it if it doesn't fit on screen. That way
|
||
// the editor can break, indent, and put a visual marker in the gutter to denote the wrap.
|
||
|
||
tmp := tmp +
|
||
' </style>' + CRLF +
|
||
' </head>' + CRLF + CRLF +
|
||
' <body>' + CRLF + CRLF +
|
||
' <table caption="' + Title + ' (' + inttostr(Grid.RootNodeCount) + ' rows)">' + CRLF +
|
||
' <thead>' + CRLF +
|
||
' <tr>' + CRLF;
|
||
for i:=0 to Length(GridData.Columns) - 1 do begin
|
||
// Skip hidden key columns.
|
||
if not (coVisible in Grid.Header.Columns[i].Options) then
|
||
Continue;
|
||
// Add header item.
|
||
Data := GridData.Columns[i].Name;
|
||
tmp := tmp + ' <th class="col' + IntToStr(i) + '">' + Data + '</th>' + CRLF;
|
||
end;
|
||
tmp := tmp +
|
||
' </tr>' + CRLF +
|
||
' </thead>' + CRLF +
|
||
' <tbody>' + CRLF;
|
||
StreamWrite(S, tmp);
|
||
|
||
Grid.Visible := false;
|
||
Node := Grid.GetFirst;
|
||
while Assigned(Node) do begin
|
||
// Update status once in a while.
|
||
if (Node.Index+1) mod 100 = 0 then
|
||
ExportStatusMsg(Node, Grid.RootNodeCount, S.Size);
|
||
tmp := ' <tr>' + CRLF;
|
||
// Ensure basic data is loaded
|
||
Mainform.EnsureChunkLoaded(Grid, Node, True);
|
||
for i:=0 to Length(GridData.Columns) - 1 do begin
|
||
// Skip hidden key columns
|
||
if not (coVisible in Grid.Header.Columns[i].Options) then
|
||
Continue;
|
||
Data := Grid.Text[Node, i];
|
||
// Handle nulls.
|
||
if GridData.Rows[Node.Index].Cells[i].IsNull then Data := TEXT_NULL;
|
||
// Escape HTML control characters in data.
|
||
Data := htmlentities(Data);
|
||
tmp := tmp + ' <td class="col' + IntToStr(i) + '">' + Data + '</td>' + CRLF;
|
||
end;
|
||
tmp := tmp + ' </tr>' + CRLF;
|
||
StreamWrite(S, tmp);
|
||
// Release some memory.
|
||
Mainform.DiscardNodeData(Grid, Node);
|
||
Node := Grid.GetNext(Node);
|
||
if (MaxSize > 0) and Assigned(Node) and (S is TMemoryStream) and (S.Size >= MaxSize) then begin
|
||
MessageDlg(
|
||
Format(MSG_COPYMAXSIZE, [FormatByteNumber(MaxSize), FormatNumber(Node.Index), FormatNumber(Grid.RootNodeCount)]),
|
||
mtWarning, [mbOK], 0);
|
||
break;
|
||
end;
|
||
end;
|
||
// footer:
|
||
tmp :=
|
||
' </tbody>' + CRLF +
|
||
' </table>' + CRLF + CRLF +
|
||
' <p>' + CRLF +
|
||
' <em>generated ' + DateToStr(now) + ' ' + TimeToStr(now) +
|
||
' by <a href="'+APPDOMAIN+'">' + Generator + '</a></em>' + CRLF +
|
||
' </p>' + CRLF + CRLF +
|
||
' </body>' + CRLF +
|
||
'</html>' + CRLF;
|
||
StreamWrite(S, tmp);
|
||
Grid.Visible := true;
|
||
Mainform.ProgressBarStatus.Visible := False;
|
||
Mainform.Showstatus(STATUS_MSG_READY);
|
||
end;
|
||
|
||
|
||
|
||
{***
|
||
Converts a TDataSet to CSV-values.
|
||
@param Grid Object which holds data to export
|
||
@param string Field-separator
|
||
@param string Field-encloser
|
||
@param string Line-terminator
|
||
}
|
||
procedure GridToCsv(Grid: TVirtualStringTree; Separator, Encloser, Terminator: String; S: TStream);
|
||
var
|
||
i, MaxSize: Integer;
|
||
tmp, Data: WideString;
|
||
Node: PVirtualNode;
|
||
GridData: TGridResult;
|
||
begin
|
||
GridData := Mainform.GridResult(Grid);
|
||
if Grid = Mainform.DataGrid then begin
|
||
// Discard all loaded data so EnsureChunkLoaded refetches it with full content lengths.
|
||
// This makes it superflous to call EnsureFullWidth and to have a unique key
|
||
for i := 0 to Length(GridData.Rows) - 1 do
|
||
GridData.Rows[i].Loaded := False;
|
||
end;
|
||
|
||
separator := esc2ascii(separator);
|
||
encloser := esc2ascii(encloser);
|
||
terminator := esc2ascii(terminator);
|
||
MaxSize := GetRegValue(REGNAME_COPYMAXSIZE, DEFAULT_COPYMAXSIZE) * SIZE_MB;
|
||
EnableProgressBar(Grid.RootNodeCount);
|
||
|
||
tmp := '';
|
||
// Columns
|
||
for i:=0 to Grid.Header.Columns.Count-1 do begin
|
||
// Skip hidden key columns
|
||
if not (coVisible in Grid.Header.Columns[i].Options) then
|
||
Continue;
|
||
Data := GridData.Columns[i].Name;
|
||
// Alter column name in header if data is not raw.
|
||
if GridData.Columns[i].DatatypeCat = dtcBinary then Data := 'HEX(' + Data + ')';
|
||
// Add header item.
|
||
if tmp <> '' then tmp := tmp + Separator;
|
||
tmp := tmp + Encloser + Data + Encloser;
|
||
end;
|
||
tmp := tmp + Terminator;
|
||
StreamWrite(S, tmp);
|
||
|
||
Grid.Visible := false;
|
||
|
||
// Data:
|
||
Node := Grid.GetFirst;
|
||
while Assigned(Node) do begin
|
||
if (Node.Index+1) mod 100 = 0 then
|
||
ExportStatusMsg(Node, Grid.RootNodeCount, S.Size);
|
||
tmp := '';
|
||
// Ensure basic data is loaded
|
||
Mainform.EnsureChunkLoaded(Grid, Node, True);
|
||
for i:=0 to Grid.Header.Columns.Count-1 do begin
|
||
// Skip hidden key columns
|
||
if not (coVisible in Grid.Header.Columns[i].Options) then
|
||
Continue;
|
||
Data := Grid.Text[Node, i];
|
||
// Remove 0x.
|
||
if GridData.Columns[i].DatatypeCat = dtcBinary then Delete(Data, 1, 2);
|
||
// Unformat float values
|
||
if GridData.Columns[i].DatatypeCat = dtcReal then Data := FloatStr(Data);
|
||
// Escape encloser characters inside data per de-facto CSV.
|
||
Data := WideStringReplace(Data, Encloser, Encloser + Encloser, [rfReplaceAll]);
|
||
// Special handling for NULL (MySQL-ism, not de-facto CSV: unquote value)
|
||
if GridData.Rows[Node.Index].Cells[i].IsNull then Data := 'NULL'
|
||
else Data := Encloser + Data + Encloser;
|
||
// Add cell.
|
||
if tmp <> '' then tmp := tmp + Separator;
|
||
tmp := tmp + Data;
|
||
end;
|
||
tmp := tmp + Terminator;
|
||
StreamWrite(S, tmp);
|
||
// Release some memory.
|
||
Mainform.DiscardNodeData(Grid, Node);
|
||
Node := Grid.GetNext(Node);
|
||
if (MaxSize > 0) and Assigned(Node) and (S is TMemoryStream) and (S.Size >= MaxSize) then begin
|
||
MessageDlg(
|
||
Format(MSG_COPYMAXSIZE, [FormatByteNumber(MaxSize), FormatNumber(Node.Index), FormatNumber(Grid.RootNodeCount)]),
|
||
mtWarning, [mbOK], 0);
|
||
break;
|
||
end;
|
||
end;
|
||
Grid.Visible := true;
|
||
Mainform.ProgressBarStatus.Visible := False;
|
||
Mainform.showstatus(STATUS_MSG_READY);
|
||
end;
|
||
|
||
|
||
|
||
{***
|
||
Converts a TDataSet to XML.
|
||
@param Grid Object which holds data to export
|
||
@param string Text used as root-element
|
||
}
|
||
procedure GridToXml(Grid: TVirtualStringTree; root: WideString; S: TStream);
|
||
var
|
||
i, MaxSize: Integer;
|
||
tmp, Data: WideString;
|
||
Node: PVirtualNode;
|
||
GridData: TGridResult;
|
||
begin
|
||
GridData := Mainform.GridResult(Grid);
|
||
if Grid = Mainform.DataGrid then begin
|
||
// Discard all loaded data so EnsureChunkLoaded refetches it with full content lengths.
|
||
// This makes it superflous to call EnsureFullWidth and to have a unique key
|
||
for i := 0 to Length(GridData.Rows) - 1 do
|
||
GridData.Rows[i].Loaded := False;
|
||
end;
|
||
|
||
MaxSize := GetRegValue(REGNAME_COPYMAXSIZE, DEFAULT_COPYMAXSIZE) * SIZE_MB;
|
||
EnableProgressBar(Grid.RootNodeCount);
|
||
tmp := '<?xml version="1.0"?>' + CRLF + CRLF +
|
||
'<table name="'+root+'">' + CRLF;
|
||
StreamWrite(S, tmp);
|
||
|
||
// Avoid reloading discarded data before the end.
|
||
Grid.Visible := false;
|
||
Node := Grid.GetFirst;
|
||
while Assigned(Node) do begin
|
||
if (Node.Index+1) mod 100 = 0 then
|
||
ExportStatusMsg(Node, Grid.RootNodeCount, S.Size);
|
||
tmp := #9'<row>' + CRLF;
|
||
// Ensure basic data is loaded.
|
||
Mainform.EnsureChunkLoaded(Grid, Node, True);
|
||
for i:=0 to Grid.Header.Columns.Count-1 do begin
|
||
// Skip hidden key columns
|
||
if not (coVisible in Grid.Header.Columns[i].Options) then
|
||
Continue;
|
||
// Print cell start tag.
|
||
tmp := tmp + #9#9'<' + Grid.Header.Columns[i].Text;
|
||
if GridData.Rows[Node.Index].Cells[i].IsNull then tmp := tmp + ' isnull="true" />' + CRLF
|
||
else begin
|
||
if GridData.Columns[i].DatatypeCat = dtcBinary then tmp := tmp + ' format="hex"';
|
||
tmp := tmp + '>';
|
||
Data := Grid.Text[Node, i];
|
||
// Remove 0x.
|
||
if GridData.Columns[i].DatatypeCat = dtcBinary then Delete(Data, 1, 2);
|
||
// Unformat float values
|
||
if GridData.Columns[i].DatatypeCat = dtcReal then Data := FloatStr(Data);
|
||
// Escape XML control characters in data.
|
||
Data := htmlentities(Data);
|
||
// Add data and cell end tag.
|
||
tmp := tmp + Data + '</' + Grid.Header.Columns[i].Text + '>' + CRLF;
|
||
end;
|
||
end;
|
||
tmp := tmp + #9'</row>' + CRLF;
|
||
StreamWrite(S, tmp);
|
||
// Release some memory.
|
||
Mainform.DiscardNodeData(Grid, Node);
|
||
Node := Grid.GetNext(Node);
|
||
if (MaxSize > 0) and Assigned(Node) and (S is TMemoryStream) and (S.Size >= MaxSize) then begin
|
||
MessageDlg(
|
||
Format(MSG_COPYMAXSIZE, [FormatByteNumber(MaxSize), FormatNumber(Node.Index), FormatNumber(Grid.RootNodeCount)]),
|
||
mtWarning, [mbOK], 0);
|
||
break;
|
||
end;
|
||
end;
|
||
// footer:
|
||
tmp := '</table>' + CRLF;
|
||
StreamWrite(S, tmp);
|
||
Grid.Visible := true;
|
||
Mainform.ProgressBarStatus.Visible := False;
|
||
Mainform.showstatus(STATUS_MSG_READY);
|
||
end;
|
||
|
||
|
||
{***
|
||
Converts a TDataSet to XML.
|
||
@param Grid Object which holds data to export
|
||
@param string Text used as tablename in INSERTs
|
||
}
|
||
procedure GridToSql(Grid: TVirtualStringTree; Tablename: WideString; S: TStream);
|
||
var
|
||
i, MaxSize: Integer;
|
||
tmp, Data: WideString;
|
||
Node: PVirtualNode;
|
||
GridData: TGridResult;
|
||
begin
|
||
GridData := Mainform.GridResult(Grid);
|
||
if Grid = Mainform.DataGrid then begin
|
||
// Discard all loaded data so EnsureChunkLoaded refetches it with full content lengths.
|
||
// This makes it superflous to call EnsureFullWidth and to have a unique key
|
||
for i := 0 to Length(GridData.Rows) - 1 do
|
||
GridData.Rows[i].Loaded := False;
|
||
end;
|
||
|
||
MaxSize := GetRegValue(REGNAME_COPYMAXSIZE, DEFAULT_COPYMAXSIZE) * SIZE_MB;
|
||
EnableProgressBar(Grid.RootNodeCount);
|
||
// Avoid reloading discarded data before the end.
|
||
Grid.Visible := false;
|
||
Node := Grid.GetFirst;
|
||
while Assigned(Node) do begin
|
||
if (Node.Index+1) mod 100 = 0 then
|
||
ExportStatusMsg(Node, Grid.RootNodeCount, S.Size);
|
||
tmp := 'INSERT INTO '+Mainform.Mask(Tablename)+' (';
|
||
for i:=0 to Grid.Header.Columns.Count-1 do begin
|
||
// Skip hidden key columns
|
||
if not (coVisible in Grid.Header.Columns[i].Options) then
|
||
Continue;
|
||
tmp := tmp + Mainform.mask(Grid.Header.Columns[i].Text)+', ';
|
||
end;
|
||
Delete(tmp, Length(tmp)-1, 2);
|
||
tmp := tmp + ') VALUES (';
|
||
// Ensure basic data is loaded.
|
||
Mainform.EnsureChunkLoaded(Grid, Node, True);
|
||
for i:=0 to Grid.Header.Columns.Count-1 do begin
|
||
// Skip hidden key columns
|
||
if not (coVisible in Grid.Header.Columns[i].Options) then
|
||
Continue;
|
||
if GridData.Rows[Node.Index].Cells[i].IsNull then
|
||
tmp := tmp + 'NULL'
|
||
else begin
|
||
Data := Grid.Text[Node, i];
|
||
// Remove 0x.
|
||
if GridData.Columns[i].DatatypeCat = dtcBinary then Delete(Data, 1, 2);
|
||
// Unformat float values
|
||
if GridData.Columns[i].DatatypeCat = dtcReal then Data := FloatStr(Data);
|
||
// Add data and cell end tag.
|
||
tmp := tmp + esc(Data);
|
||
end;
|
||
tmp := tmp + ', ';
|
||
end;
|
||
Delete(tmp, Length(tmp)-1, 2);
|
||
tmp := tmp + ');' + CRLF;
|
||
StreamWrite(S, tmp);
|
||
// Release some memory.
|
||
Mainform.DiscardNodeData(Grid, Node);
|
||
Node := Grid.GetNext(Node);
|
||
if (MaxSize > 0) and Assigned(Node) and (S is TMemoryStream) and (S.Size >= MaxSize) then begin
|
||
MessageDlg(
|
||
Format(MSG_COPYMAXSIZE, [FormatByteNumber(MaxSize), FormatNumber(Node.Index), FormatNumber(Grid.RootNodeCount)]),
|
||
mtWarning, [mbOK], 0);
|
||
break;
|
||
end;
|
||
end;
|
||
// footer:
|
||
tmp := CRLF;
|
||
StreamWrite(S, tmp);
|
||
Grid.Visible := true;
|
||
Mainform.ProgressBarStatus.Visible := False;
|
||
Mainform.showstatus(STATUS_MSG_READY);
|
||
end;
|
||
|
||
|
||
|
||
{***
|
||
Return ASCII-Values from MySQL-Escape-Sequences
|
||
|
||
@param string Text to analyze
|
||
@return string Converted text
|
||
}
|
||
function esc2ascii(str: String): String;
|
||
begin
|
||
str := stringreplace(str, '\r', #13, [rfReplaceAll]);
|
||
str := stringreplace(str, '\n', #10, [rfReplaceAll]);
|
||
str := stringreplace(str, '\t', #9, [rfReplaceAll]);
|
||
result := str;
|
||
end;
|
||
|
||
|
||
|
||
{***
|
||
Get higher value of two integers
|
||
|
||
@param integer Number 1 to compare
|
||
@param integer Number 2 to compare
|
||
@return integer Higher value
|
||
}
|
||
function Max(A, B: Integer): Integer; assembler;
|
||
asm
|
||
CMP EAX,EDX
|
||
JG @Exit
|
||
MOV EAX,EDX
|
||
@Exit:
|
||
end;
|
||
|
||
|
||
|
||
{***
|
||
Get lower value of two integers
|
||
|
||
@param integer Number 1 to compare
|
||
@param integer Number 2 to compare
|
||
@return integer Lower value of both parameters
|
||
}
|
||
function Min(A, B: Integer): Integer; assembler;
|
||
asm
|
||
CMP EAX,EDX
|
||
JL @Exit
|
||
MOV EAX,EDX
|
||
@Exit:
|
||
end;
|
||
|
||
|
||
|
||
{***
|
||
Left hand string-comparison
|
||
|
||
@param string Text 1 to compare
|
||
@param string Text 2 to compare
|
||
@return boolean Does the longer string of both contain the shorter string at the beginning?
|
||
}
|
||
function StrCmpBegin(Str1, Str2: string): Boolean;
|
||
begin
|
||
if ((Str1 = '') or (Str2 = '')) and (Str1 <> Str2) then
|
||
Result := False
|
||
else
|
||
Result := (StrLComp(PChar(Str1), PChar(Str2),
|
||
Min(Length(Str1), Length(Str2))) = 0);
|
||
end;
|
||
|
||
|
||
|
||
{***
|
||
Encode spaces (and more to come) in URLs
|
||
|
||
@param string URL to encode
|
||
@return string
|
||
}
|
||
function urlencode(url: String): String;
|
||
begin
|
||
result := stringreplace(url, ' ', '+', [rfReplaceAll]);
|
||
end;
|
||
|
||
|
||
{***
|
||
Create UTF-8 text file
|
||
}
|
||
function openfs(filename: String): TFileStream;
|
||
begin
|
||
Result := TFileStream.Create(filename, fmCreate);
|
||
Result.WriteBuffer(sUTF8BOMString, 3);
|
||
end;
|
||
|
||
{***
|
||
Write a line of text plus CRLF to existing FileStream in UTF-8
|
||
@param TFileStream
|
||
@param string Text to write
|
||
@return void
|
||
}
|
||
procedure wfs( var s: TFileStream; str: WideString = '');
|
||
begin
|
||
StreamWrite(s, str + CRLF);
|
||
end;
|
||
|
||
|
||
{**
|
||
Write some UTF8 text to a file- or memorystream
|
||
}
|
||
procedure StreamWrite(S: TStream; Text: WideString = '');
|
||
var
|
||
utf8: string;
|
||
begin
|
||
utf8 := Utf8Encode(Text);
|
||
S.Write(utf8[1], Length(utf8));
|
||
end;
|
||
|
||
|
||
|
||
{***
|
||
Make SQL statement compatible with either ANSI SQL or MySQL
|
||
@note Works around MySQL placement of semicolon in conditional
|
||
statements, which is not compatible with standard SQL (making
|
||
the whole point of conditional statements slightly moot?).
|
||
The broken format is unfortunately the only format that the
|
||
mysql cli will eat, according to one user...
|
||
|
||
btnExportClick() could be rewritten to better handle this sort
|
||
of thing, but for now / with the current code, this is the easiest
|
||
way of accomplishing the desired effect.
|
||
@param string SQL statement
|
||
@param integer MySQL-version or SQL_VERSION_ANSI
|
||
@return string SQL
|
||
}
|
||
function fixSQL( sql: WideString; sql_version: Integer = SQL_VERSION_ANSI; cli_workarounds: Boolean = false ): WideString;
|
||
var
|
||
rx : TRegExpr;
|
||
begin
|
||
result := sql;
|
||
|
||
// For mysqldump and mysql.exe CLI compatibility
|
||
if cli_workarounds then
|
||
begin
|
||
result := WideStringReplace(result, ';*/', '*/;', [rfReplaceAll]);
|
||
end;
|
||
|
||
// Detect if SQL is a CREATE TABLE statement
|
||
if copy( result, 1, 12 ) = 'CREATE TABLE' then
|
||
begin
|
||
rx := TRegExpr.Create;
|
||
// Greedy: take as many chars as I can get
|
||
rx.ModifierG := True;
|
||
// Case insensitive
|
||
rx.ModifierI := True;
|
||
|
||
if sql_version < 40100 then begin
|
||
// Strip charset definition
|
||
// see issue #1685835
|
||
rx.Expression := '\s+(DEFAULT\s+)?(CHARSET|CHARACTER SET)=\w+';
|
||
result := rx.Replace(result, '' );
|
||
// Strip collation part
|
||
rx.Expression := '\s+COLLATE=\w+';
|
||
result := rx.Replace(result, '' );
|
||
end;
|
||
|
||
if sql_version = SQL_VERSION_ANSI then begin
|
||
// Switch quoting char
|
||
result := StringReplace(result, '`', '"', [rfReplaceAll]);
|
||
// Strip ENGINE|TYPE
|
||
rx.Expression := '\s+(ENGINE|TYPE)=\w+';
|
||
result := rx.Replace(result, '' );
|
||
end;
|
||
|
||
// Turn ENGINE to TYPE
|
||
if sql_version < 40102 then
|
||
result := WideStringReplace(result, 'ENGINE=', 'TYPE=', [rfReplaceAll])
|
||
else
|
||
result := WideStringReplace(result, 'TYPE=', 'ENGINE=', [rfReplaceAll]);
|
||
|
||
// Mask USING {BTREE,HASH,RTREE} from older servers.
|
||
rx.Expression := '\s(USING\s+\w+)';
|
||
result := rx.Replace(result, ' /*!50100 $1 */', True);
|
||
|
||
rx.Free;
|
||
end;
|
||
|
||
end;
|
||
|
||
|
||
{***
|
||
Check/Uncheck all items in a CheckListBox
|
||
|
||
@param TCheckListBox List with checkable items
|
||
@param boolean Check them?
|
||
@return void
|
||
}
|
||
procedure ToggleCheckListBox(list: TTNTCheckListBox; state: Boolean);
|
||
var
|
||
i : Integer;
|
||
begin
|
||
// select all/none
|
||
for i:=0 to list.Items.Count-1 do
|
||
list.checked[i] := state;
|
||
end;
|
||
|
||
|
||
{***
|
||
Check/Uncheck items in a CheckListBox which come in a second list
|
||
|
||
@param TCheckListBox List with checkable items
|
||
@param boolean Check them?
|
||
@param TStringList Second list with items to change
|
||
@return void
|
||
}
|
||
procedure ToggleCheckListBox(list: TTNTCheckListBox; state: Boolean; list_toggle: TWideStringList);
|
||
var
|
||
i : Integer;
|
||
begin
|
||
for i:=0 to list.Items.Count-1 do begin
|
||
if list_toggle.IndexOf(list.Items[i]) > -1 then
|
||
list.Checked[i] := state
|
||
else
|
||
list.Checked[i] := not state;
|
||
end;
|
||
end;
|
||
|
||
|
||
|
||
{***
|
||
Get filesize of a given file
|
||
|
||
@param string Filename
|
||
@return int64 Size in bytes
|
||
}
|
||
function _GetFileSize(filename: String): Int64;
|
||
var
|
||
i64: record
|
||
LoDWord: LongWord;
|
||
HiDWord: LongWord;
|
||
end;
|
||
stream : TFileStream;
|
||
begin
|
||
Stream := TFileStream.Create(filename, fmOpenRead or fmShareDenyNone);
|
||
try
|
||
i64.LoDWord := GetFileSize(Stream.Handle, @i64.HiDWord);
|
||
finally
|
||
Stream.Free;
|
||
end;
|
||
if (i64.LoDWord = MAXDWORD) and (GetLastError <> 0) then
|
||
Result := 0
|
||
else
|
||
Result := PInt64(@i64)^;
|
||
end;
|
||
|
||
|
||
|
||
{***
|
||
Change "C:\Program Files\Delphi\DDrop\TargetDemo\main.pas"
|
||
to: "C:\Program Files\..\main.pas"
|
||
|
||
@param string File/Directory
|
||
@param integer Shorten name to this maximum amount of chars
|
||
@return string
|
||
}
|
||
function Mince(PathToMince: String; InSpace: Integer): String;
|
||
Var
|
||
sl: TStringList;
|
||
sHelp, sFile: String;
|
||
iPos: Integer;
|
||
|
||
Begin
|
||
sHelp := PathToMince;
|
||
iPos := Pos('\', sHelp);
|
||
If iPos = 0 Then
|
||
Begin
|
||
Result := PathToMince;
|
||
End
|
||
Else
|
||
Begin
|
||
sl := TStringList.Create;
|
||
// Decode string
|
||
While iPos <> 0 Do
|
||
Begin
|
||
sl.Add(Copy(sHelp, 1, (iPos - 1)));
|
||
sHelp := Copy(sHelp, (iPos + 1), Length(sHelp));
|
||
iPos := Pos('\', sHelp);
|
||
End;
|
||
If sHelp <> '' Then
|
||
Begin
|
||
sl.Add(sHelp);
|
||
End;
|
||
// Encode string
|
||
sFile := sl[sl.Count - 1];
|
||
sl.Delete(sl.Count - 1);
|
||
Result := '';
|
||
While (Length(Result + sFile) < InSpace) And (sl.Count <> 0) Do
|
||
Begin
|
||
Result := Result + sl[0] + '\';
|
||
sl.Delete(0);
|
||
End;
|
||
If sl.Count = 0 Then
|
||
Begin
|
||
Result := Result + sFile;
|
||
End
|
||
Else
|
||
Begin
|
||
Result := Result + '..\' + sFile;
|
||
End;
|
||
sl.Free;
|
||
End;
|
||
End;
|
||
|
||
|
||
|
||
{***
|
||
Convert a string-number to an integer-number
|
||
|
||
@param string String-number
|
||
@return int64
|
||
}
|
||
function MakeInt( Str: String ) : Int64;
|
||
begin
|
||
// Result has to be of integer type
|
||
Result := Trunc( MakeFloat( Str ) );
|
||
end;
|
||
|
||
|
||
{***
|
||
Convert a string-number to an floatingpoint-number
|
||
|
||
@param String text representation of a number
|
||
@return Extended
|
||
}
|
||
function MakeFloat( Str: String ): Extended;
|
||
var
|
||
i : Integer;
|
||
StrNumber : String;
|
||
p_kb, p_mb, p_gb, p_tb, p_pb : Integer;
|
||
HasDecimalSep: Boolean;
|
||
begin
|
||
StrNumber := '';
|
||
HasDecimalSep := False;
|
||
for i:=1 to Length(Str) do
|
||
begin
|
||
if (Str[i] in ['0'..'9', DecimalSeparator]) or ((Str[i] = '-') and (StrNumber='')) then
|
||
begin
|
||
// Avoid confusion and AV in StrToFloat()
|
||
if (ThousandSeparator = DecimalSeparator) and (Str[i] = DecimalSeparator) then
|
||
continue;
|
||
// Ensure only 1 decimalseparator is left
|
||
if (Str[i] = DecimalSeparator) and HasDecimalSep then
|
||
continue;
|
||
if Str[i] = DecimalSeparator then
|
||
HasDecimalSep := True;
|
||
StrNumber := StrNumber + Str[i];
|
||
end;
|
||
end;
|
||
|
||
// Convert result to a floating point value to ensure
|
||
// we don't discard decimal digits for the next step
|
||
if (StrNumber = '') or (StrNumber = '-') then Result := 0
|
||
else Result := StrToFloat( StrNumber );
|
||
|
||
// Detect if the string was previously formatted by FormatByteNumber
|
||
// and convert it back by multiplying it with its byte unit
|
||
p_kb := Pos(NAME_KB, Str);
|
||
p_mb := Pos(NAME_MB, Str);
|
||
p_gb := Pos(NAME_GB, Str);
|
||
p_tb := Pos(NAME_TB, Str);
|
||
p_pb := Pos(NAME_PB, Str);
|
||
|
||
if (p_kb > 0) and (p_kb = Length(Str)-Length(NAME_KB)+1) then
|
||
Result := Result * SIZE_KB
|
||
else if (p_mb > 0) and (p_mb = Length(Str)-Length(NAME_MB)+1) then
|
||
Result := Result * SIZE_MB
|
||
else if (p_gb > 0) and (p_gb = Length(Str)-Length(NAME_GB)+1) then
|
||
Result := Result * SIZE_GB
|
||
else if (p_tb > 0) and (p_tb = Length(Str)-Length(NAME_TB)+1) then
|
||
Result := Result * SIZE_TB
|
||
else if (p_pb > 0) and (p_pb = Length(Str)-Length(NAME_PB)+1) then
|
||
Result := Result * SIZE_PB;
|
||
end;
|
||
|
||
|
||
{**
|
||
Unformat a formatted float value. Used for CSV export and composing WHERE clauses for grid editing.
|
||
}
|
||
function FloatStr(Val: String): String;
|
||
begin
|
||
Result := Val;
|
||
if ThousandSeparator <> DecimalSeparator then
|
||
Result := StringReplace(Val, ThousandSeparator, '', [rfReplaceAll]);
|
||
Result := StringReplace(Val, DecimalSeparator, '.', [rfReplaceAll]);
|
||
end;
|
||
|
||
|
||
{***
|
||
Attempt to do string replacement faster than StringReplace and WideStringReplace.
|
||
}
|
||
function escChars(const Text: WideString; EscChar, Char1, Char2, Char3, Char4: WideChar): WideString;
|
||
const
|
||
// Attempt to match whatever the CPU cache will hold.
|
||
block: Cardinal = 65536;
|
||
var
|
||
bstart, bend, matches, i: Cardinal;
|
||
// These could be bumped to uint64 if necessary.
|
||
len, respos: Cardinal;
|
||
next: WideChar;
|
||
begin
|
||
len := Length(Text);
|
||
Result := '';
|
||
bend := 0;
|
||
respos := 0;
|
||
repeat
|
||
bstart := bend + 1;
|
||
bend := bstart + block - 1;
|
||
if bend > len then bend := len;
|
||
matches := 0;
|
||
for i := bstart to bend do if
|
||
(Text[i] = Char1) or
|
||
(Text[i] = Char2) or
|
||
(Text[i] = Char3) or
|
||
(Text[i] = Char4)
|
||
then Inc(matches);
|
||
SetLength(Result, bend + 1 - bstart + matches + respos);
|
||
for i := bstart to bend do begin
|
||
next := Text[i];
|
||
if
|
||
(next = Char1) or
|
||
(next = Char2) or
|
||
(next = Char3) or
|
||
(next = Char4)
|
||
then begin
|
||
Inc(respos);
|
||
Result[respos] := EscChar;
|
||
// Special values for MySQL escape.
|
||
if next = #13 then next := 'r';
|
||
if next = #10 then next := 'n';
|
||
if next = #0 then next := '0';
|
||
end;
|
||
Inc(respos);
|
||
Result[respos] := next;
|
||
end;
|
||
until bend = len;
|
||
end;
|
||
|
||
|
||
{***
|
||
Escape all kinds of characters:
|
||
- single-backslashes which represent normal parts of the text and not escape-sequences
|
||
- characters which MySQL doesn't strictly care about, but which might confuse editors etc.
|
||
- single and double quotes in a text string
|
||
- joker-chars for LIKE-comparisons
|
||
Finally, surround the text by single quotes.
|
||
|
||
@param string Text to escape
|
||
@param boolean Escape text so it can be used in a LIKE-comparison
|
||
@return string
|
||
}
|
||
function esc(Text: WideString; ProcessJokerChars: Boolean = false; sql_version: integer = 50000): WideString;
|
||
var
|
||
c1, c2, c3, c4, EscChar: WideChar;
|
||
begin
|
||
c1 := '''';
|
||
c2 := '\';
|
||
c3 := '%';
|
||
c4 := '_';
|
||
EscChar := '\';
|
||
if (not ProcessJokerChars) or (sql_version = SQL_VERSION_ANSI) then begin
|
||
// Do not escape joker-chars which are used in a LIKE-clause
|
||
c4 := '''';
|
||
c3 := '''';
|
||
end;
|
||
if sql_version = SQL_VERSION_ANSI then begin
|
||
c2 := '''';
|
||
EscChar := '''';
|
||
end;
|
||
Result := escChars(Text, EscChar, c1, c2, c3, c4);
|
||
if sql_version <> SQL_VERSION_ANSI then begin
|
||
// Remove characters that SynEdit chokes on, so that
|
||
// the SQL file can be non-corruptedly loaded again.
|
||
c1 := #13;
|
||
c2 := #10;
|
||
c3 := #0;
|
||
c4 := #0;
|
||
// TODO: SynEdit also chokes on WideChar($2028) and possibly WideChar($2029).
|
||
Result := escChars(Result, EscChar, c1, c2, c3, c4);
|
||
end;
|
||
if not ProcessJokerChars then begin
|
||
// Add surrounding single quotes only for non-LIKE-values
|
||
// because in all cases we're using ProcessLIKEChars we
|
||
// need to add leading and/or trailing joker-chars by hand
|
||
// without being escaped
|
||
Result := WideChar(#39) + Result + WideChar(#39);
|
||
end;
|
||
end;
|
||
|
||
|
||
|
||
{***
|
||
Detect NUL character in a text.
|
||
Useful because fx SynEdit cuts of all text after it encounters a NUL.
|
||
}
|
||
function ScanNulChar(Text: WideString): boolean;
|
||
var
|
||
i: integer;
|
||
begin
|
||
result := false;
|
||
for i:=1 to length(Text) do
|
||
begin
|
||
if Text[i] = #0 then
|
||
begin
|
||
result := true;
|
||
exit;
|
||
end;
|
||
end;
|
||
end;
|
||
|
||
|
||
|
||
{***
|
||
SynEdit removes all newlines and semi-randomly decides a
|
||
new newline format to use for any text edited.
|
||
See also: Delphi's incomplete implementation of TTextLineBreakStyle in System.pas
|
||
|
||
@param string Text to test
|
||
@return TLineBreaks
|
||
}
|
||
function ScanLineBreaks(Text: WideString): TLineBreaks;
|
||
var
|
||
i: integer;
|
||
c: WideChar;
|
||
procedure SetResult(Style: TLineBreaks);
|
||
begin
|
||
// Note: Prefer "(foo <> a) and (foo <> b)" over "not (foo in [a, b])" in excessive loops
|
||
// for performance reasons - there is or was a Delphi bug leaving those inline SETs in memory
|
||
// after usage. Unfortunately can't remember which bug id it was and if it still exists.
|
||
if (Result <> lbsNone) and (Result <> Style) then
|
||
Result := lbsMixed
|
||
else
|
||
Result := Style;
|
||
end;
|
||
begin
|
||
Result := lbsNone;
|
||
if length(Text) = 0 then exit;
|
||
i := 1;
|
||
repeat
|
||
c := Text[i];
|
||
if c = #13 then begin
|
||
if (i < length(Text)) and (Text[i+1] = #10) then begin
|
||
Inc(i);
|
||
SetResult(lbsWindows);
|
||
end else
|
||
SetResult(lbsMac);
|
||
end else if c = LB_UNIX then
|
||
SetResult(lbsUnix)
|
||
else if c = LB_WIDE then
|
||
SetResult(lbsWide);
|
||
i := i + 1;
|
||
// No need to do more checks after detecting mixed style
|
||
if Result = lbsMixed then
|
||
break;
|
||
until i > length(Text);
|
||
end;
|
||
|
||
|
||
|
||
{***
|
||
Mangle input text so that SynEdit can load it.
|
||
|
||
@param string Text to test
|
||
@return Boolean
|
||
}
|
||
function RemoveNulChars(Text: WideString): WideString;
|
||
var
|
||
i: integer;
|
||
c: WideChar;
|
||
begin
|
||
SetLength(Result, Length(Text));
|
||
if Length(Text) = 0 then Exit;
|
||
i := 1;
|
||
repeat
|
||
c := Text[i];
|
||
if c = #0 then Result[i] := #32
|
||
else Result[i] := c;
|
||
i := i + 1;
|
||
until i > length(Text);
|
||
end;
|
||
|
||
|
||
|
||
{***
|
||
Use DebugView from SysInternals or Delphi's Event Log to view.
|
||
|
||
@param string Text to ouput
|
||
@return void
|
||
}
|
||
procedure debug(txt: String);
|
||
begin
|
||
if length(txt) = 0 then txt := '(debug: blank output?)';
|
||
// Todo: not thread safe.
|
||
dbgCounter := dbgCounter + 1;
|
||
txt := Format(APPNAME+': %d %s', [dbgCounter, txt]);
|
||
OutputDebugString(PChar(txt));
|
||
end;
|
||
|
||
|
||
|
||
{***
|
||
Unify CR's and LF's to CRLF
|
||
|
||
@param string Text to fix
|
||
@return string
|
||
}
|
||
function fixNewlines(txt: string): string;
|
||
begin
|
||
txt := StringReplace(txt, CRLF, #10, [rfReplaceAll]);
|
||
txt := StringReplace(txt, #13, #10, [rfReplaceAll]);
|
||
txt := StringReplace(txt, #10, CRLF, [rfReplaceAll]);
|
||
result := txt;
|
||
end;
|
||
|
||
|
||
|
||
{***
|
||
Convert a boolean True/False to a string Y/N
|
||
|
||
@see TUserManagerForm::getColumnNamesOrValues
|
||
@param boolean Value to convert
|
||
@return string
|
||
}
|
||
function BoolToStr(val: Boolean): String;
|
||
begin
|
||
if val then
|
||
result := 'Y'
|
||
else
|
||
result := 'N';
|
||
end;
|
||
|
||
|
||
function StrToBool(val: String): Boolean;
|
||
begin
|
||
Result := val = 'Y';
|
||
end;
|
||
|
||
|
||
{***
|
||
Get the path of a Windows(r)-shellfolder, specified by an integer or a constant
|
||
|
||
@param integer Number or constant
|
||
@return string Path
|
||
}
|
||
function GetShellFolder(CSIDL: integer): string;
|
||
var
|
||
pidl : PItemIdList;
|
||
FolderPath : string;
|
||
SystemFolder : Integer;
|
||
Malloc : IMalloc;
|
||
begin
|
||
Malloc := nil;
|
||
FolderPath := '';
|
||
SHGetMalloc(Malloc);
|
||
if Malloc = nil then
|
||
begin
|
||
Result := FolderPath;
|
||
Exit;
|
||
end;
|
||
try
|
||
SystemFolder := CSIDL;
|
||
if SUCCEEDED(SHGetSpecialFolderLocation(0, SystemFolder, pidl)) then
|
||
begin
|
||
SetLength(FolderPath, max_path);
|
||
if SHGetPathFromIDList(pidl, PChar(FolderPath)) then
|
||
begin
|
||
SetLength(FolderPath, length(PChar(FolderPath)));
|
||
end;
|
||
end;
|
||
Result := FolderPath;
|
||
finally
|
||
Malloc.Free(pidl);
|
||
end;
|
||
end;
|
||
|
||
|
||
|
||
{***
|
||
Return all files in a given directory into a TStringList
|
||
|
||
@param string Folderpath
|
||
@param string Filepattern to filter files, defaults to all files (*.*)
|
||
@return TStringList Filenames
|
||
}
|
||
function getFilesFromDir( dir: String; pattern: String = '*.*'; hideExt: Boolean = false ): TStringList;
|
||
var
|
||
sr : TSearchRec;
|
||
s : String;
|
||
begin
|
||
result := TStringList.Create;
|
||
if dir[length(dir)] <> '\' then
|
||
dir := dir + '\';
|
||
if FindFirst( dir + pattern, $3F, sr ) = 0 then
|
||
begin
|
||
repeat
|
||
if (sr.Attr and faAnyFile) > 0 then begin
|
||
s := sr.Name;
|
||
if hideExt and (Pos('.', s) > 0) then begin
|
||
SetLength(s, Pos('.', s) - 1);
|
||
end;
|
||
result.Add( s );
|
||
end;
|
||
until FindNext( sr ) <> 0;
|
||
// FindClose( sr );
|
||
end;
|
||
end;
|
||
|
||
|
||
|
||
{***
|
||
Remove special characters from a filename
|
||
|
||
@param string Filename
|
||
@return string
|
||
}
|
||
function goodfilename( str: String ): String;
|
||
var
|
||
c : Char;
|
||
begin
|
||
result := str;
|
||
for c in ['\', '/', ':', '*', '?', '"', '<', '>', '|'] do
|
||
result := StringReplace( result, c, '_', [rfReplaceAll] );
|
||
end;
|
||
|
||
|
||
|
||
{***
|
||
Return a formatted number from a string
|
||
by first converting it to a float and then to the desired format
|
||
|
||
@param string Text containing a number
|
||
@return string
|
||
}
|
||
function FormatNumber( str: String ): String; Overload;
|
||
begin
|
||
if str <> '' then
|
||
result := FormatNumber( StrToFloat( str ) )
|
||
else
|
||
result := FormatNumber( 0 );
|
||
end;
|
||
|
||
|
||
|
||
{***
|
||
Return a formatted number from an integer
|
||
|
||
@param int64 Number to format
|
||
@return string
|
||
}
|
||
function FormatNumber( int: Int64 ): String; Overload;
|
||
begin
|
||
result := FormatNumber( int, 0 );
|
||
end;
|
||
|
||
|
||
|
||
{***
|
||
Return a formatted number from a float
|
||
This function is called by two overloaded functions
|
||
|
||
@param double Number to format
|
||
@param integer Number of decimals
|
||
@return string
|
||
}
|
||
function FormatNumber( flt: Double; decimals: Integer = 0 ): String; Overload;
|
||
begin
|
||
result := trim( format( '%10.'+IntToStr(decimals)+'n', [flt] ) );
|
||
end;
|
||
|
||
|
||
|
||
{***
|
||
Set global variables containing the standard local format for date and time
|
||
values. Standard means the MySQL-standard format, which is YYYY-MM-DD HH:MM:SS
|
||
|
||
@note Be aware that Delphi internally converts the slashes in ShortDateFormat
|
||
to the DateSeparator
|
||
}
|
||
procedure setLocales;
|
||
begin
|
||
DateSeparator := '-';
|
||
TimeSeparator := ':';
|
||
ShortDateFormat := 'yyyy/mm/dd';
|
||
LongTimeFormat := 'hh:nn:ss';
|
||
if DecimalSeparatorSystemdefault = '' then
|
||
DecimalSeparatorSystemdefault := DecimalSeparator;
|
||
DecimalSeparator := DecimalSeparatorSystemdefault;
|
||
end;
|
||
|
||
|
||
|
||
{***
|
||
Quote identifiers either with double quotes to be ANSI-compatibile,
|
||
mysql-compatible backticks, or not at all for mysql below 3.23
|
||
|
||
@param integer MySQL version as compact number
|
||
@param string Identifier
|
||
@return string (not) quoted identifier
|
||
@see http://www.heidisql.com/forum/viewtopic.php?t=161
|
||
}
|
||
function maskSql(sql_version: integer; str: WideString) : WideString;
|
||
begin
|
||
// Quote ANSI-compatible (but not MySQL-compatible)?
|
||
if sql_version = SQL_VERSION_ANSI then
|
||
begin
|
||
result := WideStringReplace(str, '"', '""', [rfReplaceAll]);
|
||
result := '"' + result + '"';
|
||
end
|
||
// Quote MySQL-compatible
|
||
else if sql_version >= 32300 then
|
||
begin
|
||
result := WideStringReplace(str, '`', '``', [rfReplaceAll]);
|
||
result := '`' + result + '`';
|
||
end
|
||
else
|
||
begin
|
||
result := str;
|
||
end;
|
||
end;
|
||
|
||
|
||
|
||
{***
|
||
Given a Delphi MainForm, acquire the handle of that form's Application.
|
||
|
||
@param HWnd The mainform's window handle
|
||
@return HWnd
|
||
}
|
||
function GetApplication(MainForm: HWnd): HWnd;
|
||
begin
|
||
result := GetWindowLong(MainForm, GWL_HWNDPARENT);
|
||
end;
|
||
|
||
|
||
|
||
{***
|
||
Given a Delphi MainForm, activate the application it belongs to.
|
||
|
||
@param HWnd The mainform's window handle
|
||
}
|
||
procedure ActivateMainForm(MainForm: HWnd);
|
||
var
|
||
delphiApp: HWnd;
|
||
begin
|
||
delphiApp := GetApplication(MainForm);
|
||
ActivateWindow(delphiApp);
|
||
end;
|
||
|
||
|
||
|
||
{***
|
||
Activate a specific form
|
||
|
||
@note Copyright: This function was nicked from usenet:
|
||
Delphi & focus control by Tony Tanzillo in autodesk.autocad.customization.vba.
|
||
@param HWnd Form to activate
|
||
}
|
||
procedure ActivateWindow(Window : HWnd);
|
||
var
|
||
state : TWindowPlacement;
|
||
begin
|
||
if not IsWindow(Window) then exit;
|
||
if IsIconic(Window) then begin
|
||
state.length := SizeOf(TWindowPlacement);
|
||
GetWindowPlacement(Window, PWindowPlacement(@state));
|
||
if (state.flags and WPF_RESTORETOMAXIMIZED) = WPF_RESTORETOMAXIMIZED then begin
|
||
ShowWindow(Window, SW_SHOWMAXIMIZED)
|
||
end else begin
|
||
ShowWindow(Window, SW_RESTORE);
|
||
end;
|
||
end;
|
||
BringWindowToTop(Window);
|
||
SetForegroundWindow(Window);
|
||
end;
|
||
|
||
|
||
|
||
{***
|
||
Open URL or execute system command
|
||
|
||
@param string Command or URL to execute
|
||
@param string Working directory, only usefull is first param is a system command
|
||
}
|
||
procedure ShellExec( cmd: String; path: String = '' );
|
||
var
|
||
ppath : PChar;
|
||
begin
|
||
if path <> '' then
|
||
ppath := pchar(path)
|
||
else
|
||
ppath := nil;
|
||
ShellExecute(0, 'open', pchar(cmd), Nil, ppath, SW_SHOWNORMAL);
|
||
end;
|
||
|
||
|
||
|
||
{***
|
||
Returns first word of a given text
|
||
@param string Given text
|
||
@return string First word-boundary
|
||
}
|
||
function getFirstWord( text: String ): String;
|
||
var
|
||
i : Integer;
|
||
wordChars, wordCharsFirst : Set of Char;
|
||
begin
|
||
result := '';
|
||
text := trim( text );
|
||
// First char in word must not be numerical. Fixes queries like
|
||
// /*!40000 SHOW ENGINES */ to be recognized as "result"-queries
|
||
// while not breaking getFirstWord in situations where the second
|
||
// or later char can be a number (fx the collation in createdatabase).
|
||
wordChars := ['a'..'z', 'A'..'Z', '0'..'9', '_', '-'];
|
||
wordCharsFirst := wordChars - ['0'..'9'];
|
||
i := 1;
|
||
|
||
// Find beginning of the first word, ignoring non-alphanumeric chars at the very start
|
||
// @see bug #1692828
|
||
while i < Length(text) do
|
||
begin
|
||
if (text[i] in wordCharsFirst) then
|
||
begin
|
||
// Found beginning of word!
|
||
break;
|
||
end;
|
||
if i = Length(text)-1 then
|
||
begin
|
||
// Give up in the very last loop, reset counter
|
||
// and break. We can't find the start of a word
|
||
i := 1;
|
||
break;
|
||
end;
|
||
inc(i);
|
||
end;
|
||
|
||
// Add chars as long as they're alpha-numeric
|
||
while i <= Length(text) do
|
||
begin
|
||
if ((result = '') and (text[i] in wordCharsFirst)) or (text[i] in wordChars) then
|
||
begin
|
||
result := result + text[i];
|
||
end
|
||
else
|
||
begin
|
||
// Stop here because we found a non-alphanumeric char.
|
||
// This applies to all different whitespaces, brackets, commas etc.
|
||
break;
|
||
end;
|
||
inc(i);
|
||
end;
|
||
end;
|
||
|
||
|
||
{***
|
||
This function maps MySQL character sets to Windows ANSI codepages.
|
||
}
|
||
function ConvertWindowsCodepageToMysqlCharacterSet(codepage: Cardinal): string;
|
||
var
|
||
i: integer;
|
||
begin
|
||
result := '';
|
||
for i := 0 to Length(charset_conv_table) - 1 do begin
|
||
if charset_conv_table[i].codepage = codepage then begin
|
||
result := charset_conv_table[i].charset;
|
||
exit;
|
||
end;
|
||
end;
|
||
end;
|
||
|
||
|
||
{**
|
||
Get last position of substr in str
|
||
@param string Substring
|
||
@param string Text
|
||
@return Integer Last position
|
||
}
|
||
function LastPos(needle: WideChar; haystack: WideString): Integer;
|
||
var
|
||
reverse: WideString;
|
||
i, len, w: Integer;
|
||
begin
|
||
// Reverse string.
|
||
len := Length(haystack);
|
||
SetLength(reverse, len);
|
||
for i := 1 to len do reverse[i] := haystack[len - i + 1];
|
||
// Look for needle.
|
||
Result := 0;
|
||
w := Pos(needle, reverse);
|
||
if w > 0 then Result := len - w + 1;
|
||
end;
|
||
|
||
|
||
{**
|
||
Convert integer version to real version string
|
||
}
|
||
function ConvertServerVersion( Version: Integer ): String;
|
||
var
|
||
v : String;
|
||
v1, v2 : Byte;
|
||
begin
|
||
v := IntToStr( Version );
|
||
v1 := StrToIntDef( v[2]+v[3], 0 );
|
||
v2 := StrToIntDef( v[4]+v[5], 0 );
|
||
Result := v[1] + '.' + IntToStr(v1) + '.' + IntToStr(v2);
|
||
end;
|
||
|
||
|
||
{**
|
||
Format a filesize to automatically use the best fitting expression
|
||
16 100 000 Bytes -> 16,1 MB
|
||
4 500 Bytes -> 4,5 KB
|
||
@param Int64 Number of Bytes
|
||
@param Byte Decimals to display when bytes is bigger than 1M
|
||
}
|
||
function FormatByteNumber( Bytes: Int64; Decimals: Byte = 1 ): String; Overload;
|
||
begin
|
||
if Bytes >= SIZE_PB then
|
||
Result := FormatNumber( Bytes / SIZE_PB, Decimals ) + NAME_PB
|
||
else if Bytes >= SIZE_TB then
|
||
Result := FormatNumber( Bytes / SIZE_TB, Decimals ) + NAME_TB
|
||
else if Bytes >= SIZE_GB then
|
||
Result := FormatNumber( Bytes / SIZE_GB, Decimals ) + NAME_GB
|
||
else if Bytes >= SIZE_MB then
|
||
Result := FormatNumber( Bytes / SIZE_MB, Decimals ) + NAME_MB
|
||
else if Bytes >= SIZE_KB then
|
||
Result := FormatNumber( Bytes / SIZE_KB, Decimals ) + NAME_KB
|
||
else
|
||
Result := FormatNumber( Bytes ) + NAME_BYTES
|
||
end;
|
||
|
||
|
||
{**
|
||
An overloaded function of the previous one which can
|
||
take a string as input
|
||
}
|
||
function FormatByteNumber( Bytes: String; Decimals: Byte = 1 ): String; Overload;
|
||
begin
|
||
Result := FormatByteNumber( MakeInt(Bytes), Decimals );
|
||
end;
|
||
|
||
|
||
{**
|
||
Format a number of seconds to a human readable time format
|
||
@param Cardinal Number of seconds
|
||
@result String 12:34:56
|
||
}
|
||
function FormatTimeNumber( Seconds: Cardinal ): String;
|
||
var
|
||
h, m, s : Integer;
|
||
begin
|
||
s := Seconds mod (60*60*24);
|
||
h := s div (60*60);
|
||
s := s mod (60*60);
|
||
m := s div 60;
|
||
s := s mod 60;
|
||
Result := Format('%.2d:%.2d:%.2d', [h, m, s]);
|
||
end;
|
||
|
||
|
||
{**
|
||
Return TColor value in XXXXXX format
|
||
(X being a hex digit)
|
||
}
|
||
function TColorToHex( Color : TColor ): string;
|
||
begin
|
||
Result := '#' +
|
||
{ red } IntToHex( GetRValue( Color ), 2 ) +
|
||
{ green } IntToHex( GetGValue( Color ), 2 ) +
|
||
{ blue } IntToHex( GetBValue( Color ), 2 );
|
||
end;
|
||
|
||
|
||
{**
|
||
Return a TStringList with captions from all selected nodes in a VirtualTree
|
||
Especially helpful when toMultiSelect is True
|
||
}
|
||
function GetVTCaptions( VT: TVirtualStringTree; OnlySelected: Boolean = False; Column: Integer = 0; OnlyNodeType: TListNodeType = lntNone ): TWideStringList;
|
||
var
|
||
Node: PVirtualNode;
|
||
NodeData: PVTreeData;
|
||
begin
|
||
Result := TWideStringList.Create;
|
||
if OnlySelected then Node := VT.GetFirstSelected
|
||
else Node := VT.GetFirst;
|
||
while Assigned(Node) do begin
|
||
if OnlyNodeType = lntNone then // Add all nodes, regardless of their types
|
||
Result.Add( VT.Text[Node, Column] )
|
||
else begin
|
||
NodeData := VT.GetNodeData(Node);
|
||
if (NodeData.NodeType = OnlyNodeType) then // Node in loop is of specified type
|
||
Result.Add(NodeData.Captions[Column]);
|
||
end;
|
||
if OnlySelected then Node := VT.GetNextSelected(Node)
|
||
else Node := VT.GetNext(Node);
|
||
end;
|
||
end;
|
||
|
||
|
||
{**
|
||
The opposite of GetVTCaptions in "OnlySelected"-Mode:
|
||
Set selected nodes in a VirtualTree
|
||
}
|
||
procedure SetVTSelection( VT: TVirtualStringTree; Selected: TWideStringList );
|
||
var
|
||
Node: PVirtualNode;
|
||
NodeData: PVTreeData;
|
||
IsSel, FoundFocus: Boolean;
|
||
begin
|
||
Node := VT.GetFirst;
|
||
FoundFocus := False;
|
||
while Assigned(Node) do begin
|
||
NodeData := VT.GetNodeData(Node);
|
||
IsSel := Selected.IndexOf(NodeData.Captions[0]) > -1;
|
||
VT.Selected[Node] := IsSel;
|
||
if IsSel and not FoundFocus then begin
|
||
VT.FocusedNode := Node;
|
||
FoundFocus := True;
|
||
end;
|
||
if IsSel and not (toMultiSelect in VT.TreeOptions.SelectionOptions) then
|
||
break;
|
||
Node := VT.GetNext(Node);
|
||
end;
|
||
end;
|
||
|
||
|
||
function Pos2(const Needle, HayStack: string; const StartPos: Integer) : Integer;
|
||
var
|
||
NewHayStack: string;
|
||
begin
|
||
NewHayStack := Copy(HayStack, StartPos, Length(HayStack));
|
||
Result := Pos(Needle, NewHayStack);
|
||
if Result > 0 then Result := Result + StartPos - 1;
|
||
end;
|
||
|
||
|
||
function GetTempDir: String;
|
||
var
|
||
TempPath: array[0..MAX_PATH] of Char;
|
||
begin
|
||
GetTempPath(MAX_PATH, PAnsiChar(@TempPath));
|
||
Result := StrPas(TempPath);
|
||
end;
|
||
|
||
|
||
// Tell type of db object (table|view) by a given row from a SHOW TABLE STATUS result
|
||
function GetDBObjectType( TableStatus: TFields ): TListNodeType;
|
||
var
|
||
t: String;
|
||
begin
|
||
{**
|
||
@see http://dev.mysql.com/doc/refman/5.1/en/show-table-status.html
|
||
For views, all the fields displayed by SHOW TABLE STATUS are NULL except
|
||
that Name indicates the view name and Comment says view.
|
||
@note The "Comment" column can contain different content, normally "VIEW"
|
||
but for views which is missing its tables, it says
|
||
"Views bla references invalid..."
|
||
}
|
||
Result := lntTable;
|
||
if TableStatus.FindField('Type') <> nil then begin
|
||
t := TableStatus.FindField('Type').AsString;
|
||
if t = 'BASE TABLE' then
|
||
Result := lntTable
|
||
else if t = 'VIEW' then
|
||
Result := lntView
|
||
else if t = 'FUNCTION' then
|
||
Result := lntFunction
|
||
else if t = 'PROCEDURE' then
|
||
Result := lntProcedure;
|
||
end else begin
|
||
if
|
||
TableStatus[1].IsNull and // Engine column is NULL for views
|
||
TableStatus[2].IsNull and
|
||
(Pos('VIEW', UpperCase(TableStatus.FieldByName(DBO_COMMENT).AsWideString)) > 0)
|
||
then Result := lntView;
|
||
if
|
||
TableStatus[1].IsNull and
|
||
TableStatus[2].IsNull and
|
||
(Pos('MARKED AS CRASHED', UpperCase(TableStatus.FieldByName(DBO_COMMENT).AsWideString)) > 0)
|
||
then Result := lntCrashedTable;
|
||
end;
|
||
end;
|
||
|
||
|
||
{
|
||
Code taken from SizeGripHWND.pas:
|
||
Copyright (C) 2005, 2006 Volker Siebert <flocke@vssd.de>
|
||
Alle Rechte vorbehalten.
|
||
|
||
Permission is hereby granted, free of charge, to any person obtaining a
|
||
copy of this software and associated documentation files (the "Software"),
|
||
to deal in the Software without restriction, including without limitation
|
||
the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
||
and/or sell copies of the Software, and to permit persons to whom the
|
||
Software is furnished to do so, subject to the following conditions:
|
||
|
||
The above copyright notice and this permission notice shall be included in
|
||
all copies or substantial portions of the Software.
|
||
}
|
||
function SizeGripWndProc(hWnd: HWND; Msg: UINT; wParam: WPARAM; lParam: LPARAM): LRESULT; stdcall;
|
||
var
|
||
Info: PGripInfo;
|
||
dc: HDC;
|
||
pt: TPoint;
|
||
|
||
// Invalidate the current grip rectangle
|
||
procedure InvalidateGrip;
|
||
begin
|
||
with Info^ do
|
||
if (GripRect.Right > GripRect.Left) and
|
||
(GripRect.Bottom > GripRect.Top) then
|
||
InvalidateRect(hWnd, @GripRect, true);
|
||
end;
|
||
|
||
// Update (and invalidate) the current grip rectangle
|
||
procedure UpdateGrip;
|
||
begin
|
||
with Info^ do
|
||
begin
|
||
GetClientRect(hWnd, GripRect);
|
||
GripRect.Left := GripRect.Right - GetSystemMetrics(SM_CXHSCROLL);
|
||
GripRect.Top := GripRect.Bottom - GetSystemMetrics(SM_CYVSCROLL);
|
||
end;
|
||
|
||
InvalidateGrip;
|
||
end;
|
||
|
||
function CallOld: LRESULT;
|
||
begin
|
||
Result := CallWindowProc(@Info^.OldWndProc, hWnd, Msg, wParam, lParam);
|
||
end;
|
||
|
||
begin
|
||
Info := PGripInfo(GetProp(hWnd, SizeGripProp));
|
||
if Info = nil then
|
||
Result := DefWindowProc(hWnd, Msg, wParam, lParam)
|
||
else if not Info^.Enabled then
|
||
Result := CallOld
|
||
else
|
||
begin
|
||
case Msg of
|
||
WM_NCDESTROY: begin
|
||
Result := CallOld;
|
||
|
||
SetWindowLong(hWnd, GWL_WNDPROC, LongInt(@Info^.OldWndProc));
|
||
RemoveProp(hWnd, SizeGripProp);
|
||
Dispose(Info);
|
||
end;
|
||
|
||
WM_PAINT: begin
|
||
Result := CallOld;
|
||
if wParam = 0 then
|
||
begin
|
||
dc := GetDC(hWnd);
|
||
DrawFrameControl(dc, Info^.GripRect, DFC_SCROLL, DFCS_SCROLLSIZEGRIP);
|
||
ReleaseDC(hWnd, dc);
|
||
end;
|
||
end;
|
||
|
||
WM_NCHITTEST: begin
|
||
pt.x := TSmallPoint(lParam).x;
|
||
pt.y := TSmallPoint(lParam).y;
|
||
ScreenToClient(hWnd, pt);
|
||
if PtInRect(Info^.GripRect, pt) then
|
||
Result := HTBOTTOMRIGHT
|
||
else
|
||
Result := CallOld;
|
||
end;
|
||
|
||
WM_SIZE: begin
|
||
InvalidateGrip;
|
||
Result := CallOld;
|
||
UpdateGrip;
|
||
end;
|
||
|
||
else
|
||
Result := CallOld;
|
||
end;
|
||
end;
|
||
end;
|
||
|
||
{ Note that SetWindowSizeGrip(..., false) does not really remove the hook -
|
||
it just sets "Enabled" to false. The hook plus all data is removed when
|
||
the window is destroyed.
|
||
}
|
||
procedure SetWindowSizeGrip(hWnd: HWND; Enable: boolean);
|
||
var
|
||
Info: PGripInfo;
|
||
begin
|
||
Info := PGripInfo(GetProp(hWnd, SizeGripProp));
|
||
if (Info = nil) and Enable then
|
||
begin
|
||
New(Info);
|
||
FillChar(Info^, SizeOf(TGripInfo), 0);
|
||
|
||
with Info^ do
|
||
begin
|
||
Info^.OldWndProc := TWndProc(Pointer(GetWindowLong(hWnd, GWL_WNDPROC)));
|
||
|
||
GetClientRect(hWnd, GripRect);
|
||
GripRect.Left := GripRect.Right - GetSystemMetrics(SM_CXHSCROLL);
|
||
GripRect.Top := GripRect.Bottom - GetSystemMetrics(SM_CYVSCROLL);
|
||
end;
|
||
|
||
SetProp(hWnd, SizeGripProp, Cardinal(Info));
|
||
SetWindowLong(hWnd, GWL_WNDPROC, LongInt(@SizeGripWndProc));
|
||
end;
|
||
|
||
if (Info <> nil) then
|
||
if Enable <> Info^.Enabled then
|
||
with Info^ do
|
||
begin
|
||
Enabled := Enable;
|
||
if (GripRect.Right > GripRect.Left) and
|
||
(GripRect.Bottom > GripRect.Top) then
|
||
InvalidateRect(hWnd, @GripRect, true);
|
||
end;
|
||
end;
|
||
|
||
|
||
{**
|
||
Save a textfile with unicode
|
||
}
|
||
procedure SaveUnicodeFile(Filename: String; Text: WideString);
|
||
var
|
||
f: TFileStream;
|
||
begin
|
||
f := CreateUnicodeFileStream(Filename);
|
||
f.WriteBuffer(Pointer(Text)^, Length(Text) * 2);
|
||
f.Free;
|
||
end;
|
||
|
||
|
||
function CreateUnicodeFileStream(Filename: String): TFileStream;
|
||
var
|
||
header: array[0..1] of Byte;
|
||
begin
|
||
header[0] := $FF;
|
||
header[1] := $FE;
|
||
Result := TFileStream.Create(Filename, fmCreate or fmOpenWrite);
|
||
Result.WriteBuffer(header, 2);
|
||
end;
|
||
|
||
|
||
{**
|
||
Open a textfile unicode safe and return a stream + its charset
|
||
}
|
||
procedure OpenTextFile(const Filename: String; out Stream: TFileStream; out FileCharset: TFileCharset);
|
||
begin
|
||
Stream := TFileStream.Create(Filename, fmOpenRead or fmShareDenyNone);
|
||
Stream.Position := 0;
|
||
FileCharset := GetFileCharset(Stream);
|
||
end;
|
||
|
||
|
||
{**
|
||
Detect a file's character set which can be
|
||
UTF-16 BE with BOM
|
||
UTF-16 LE with BOM
|
||
UTF-8 with or without BOM
|
||
ANSI
|
||
@see http://en.wikipedia.org/wiki/Byte_Order_Mark
|
||
}
|
||
function GetFileCharset(Stream: TFileStream): TFileCharset;
|
||
var
|
||
ByteOrderMark: WideChar;
|
||
BytesRead: Integer;
|
||
Utf8Test: array[0..2] of AnsiChar;
|
||
Buffer: array of Byte;
|
||
BufferSize, i, FoundUTF8Strings: Integer;
|
||
const
|
||
UNICODE_BOM = WideChar($FEFF);
|
||
UNICODE_BOM_SWAPPED = WideChar($FFFE);
|
||
UTF8_BOM = AnsiString(#$EF#$BB#$BF);
|
||
MinimumCountOfUTF8Strings = 1;
|
||
MaxBufferSize = $4000;
|
||
|
||
// 3 trailing bytes are the maximum in valid UTF-8 streams,
|
||
// so a count of 4 trailing bytes is enough to detect invalid UTF-8 streams
|
||
function CountOfTrailingBytes: Integer;
|
||
begin
|
||
Result := 0;
|
||
inc(i);
|
||
while (i < BufferSize) and (Result < 4) do begin
|
||
if Buffer[i] in [$80..$BF] then
|
||
inc(Result)
|
||
else
|
||
Break;
|
||
inc(i);
|
||
end;
|
||
end;
|
||
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 := fcsUnicode
|
||
else if ByteOrderMark = UNICODE_BOM_SWAPPED then
|
||
Result := fcsUnicodeSwapped
|
||
else if Utf8Test = UTF8_BOM then
|
||
Result := fcsUtf8
|
||
else begin
|
||
{ @note Taken from SynUnicode.pas }
|
||
{ If no BOM was found, check for leading/trailing byte sequences,
|
||
which are uncommon in usual non UTF-8 encoded text.
|
||
|
||
NOTE: There is no 100% save way to detect UTF-8 streams. The bigger
|
||
MinimumCountOfUTF8Strings, the lower is the probability of
|
||
a false positive. On the other hand, a big MinimumCountOfUTF8Strings
|
||
makes it unlikely to detect files with only little usage of non
|
||
US-ASCII chars, like usual in European languages. }
|
||
|
||
// if no special characteristics are found it is not UTF-8
|
||
Result := fcsAnsi;
|
||
|
||
// if Stream is nil, let Delphi raise the exception, by accessing Stream,
|
||
// to signal an invalid result
|
||
|
||
// start analysis at actual Stream.Position
|
||
BufferSize := Min(MaxBufferSize, Stream.Size - Stream.Position);
|
||
|
||
if BufferSize > 0 then begin
|
||
SetLength(Buffer, BufferSize);
|
||
Stream.ReadBuffer(Buffer[0], BufferSize);
|
||
Stream.Seek(-BufferSize, soFromCurrent);
|
||
|
||
FoundUTF8Strings := 0;
|
||
i := 0;
|
||
while i < BufferSize do begin
|
||
if FoundUTF8Strings = MinimumCountOfUTF8Strings then begin
|
||
Result := fcsUtf8;
|
||
Break;
|
||
end;
|
||
case Buffer[i] of
|
||
$00..$7F: // skip US-ASCII characters as they could belong to various charsets
|
||
;
|
||
$C2..$DF:
|
||
if CountOfTrailingBytes = 1 then
|
||
inc(FoundUTF8Strings)
|
||
else
|
||
Break;
|
||
$E0:
|
||
begin
|
||
inc(i);
|
||
if (i < BufferSize) and (Buffer[i] in [$A0..$BF]) and (CountOfTrailingBytes = 1) then
|
||
inc(FoundUTF8Strings)
|
||
else
|
||
Break;
|
||
end;
|
||
$E1..$EC, $EE..$EF:
|
||
if CountOfTrailingBytes = 2 then
|
||
inc(FoundUTF8Strings)
|
||
else
|
||
Break;
|
||
$ED:
|
||
begin
|
||
inc(i);
|
||
if (i < BufferSize) and (Buffer[i] in [$80..$9F]) and (CountOfTrailingBytes = 1) then
|
||
inc(FoundUTF8Strings)
|
||
else
|
||
Break;
|
||
end;
|
||
$F0:
|
||
begin
|
||
inc(i);
|
||
if (i < BufferSize) and (Buffer[i] in [$90..$BF]) and (CountOfTrailingBytes = 2) then
|
||
inc(FoundUTF8Strings)
|
||
else
|
||
Break;
|
||
end;
|
||
$F1..$F3:
|
||
if CountOfTrailingBytes = 3 then
|
||
inc(FoundUTF8Strings)
|
||
else
|
||
Break;
|
||
$F4:
|
||
begin
|
||
inc(i);
|
||
if (i < BufferSize) and (Buffer[i] in [$80..$8F]) and (CountOfTrailingBytes = 2) then
|
||
inc(FoundUTF8Strings)
|
||
else
|
||
Break;
|
||
end;
|
||
$C0, $C1, $F5..$FF: // invalid UTF-8 bytes
|
||
Break;
|
||
$80..$BF: // trailing bytes are consumed when handling leading bytes,
|
||
// any occurence of "orphaned" trailing bytes is invalid UTF-8
|
||
Break;
|
||
end;
|
||
inc(i);
|
||
end;
|
||
end;
|
||
end;
|
||
end;
|
||
|
||
{**
|
||
Read a chunk out of a textfile unicode safe by passing a stream and its charset
|
||
}
|
||
function ReadTextfileChunk(Stream: TFileStream; FileCharset: TFileCharset; ChunkSize: Int64 = 0): WideString;
|
||
var
|
||
SA: AnsiString;
|
||
P: PWord;
|
||
DataLeft: Int64;
|
||
begin
|
||
DataLeft := Stream.Size - Stream.Position;
|
||
if (ChunkSize = 0) or (ChunkSize > DataLeft) then
|
||
ChunkSize := DataLeft;
|
||
if (FileCharset in [fcsUnicode, fcsUnicodeSwapped]) then begin
|
||
// BOM indicates Unicode text stream
|
||
if ChunkSize < SizeOf(WideChar) then
|
||
Result := ''
|
||
else begin
|
||
SetLength(Result, ChunkSize div SizeOf(WideChar));
|
||
Stream.Read(PWideChar(Result)^, ChunkSize);
|
||
if FileCharset = fcsUnicodeSwapped then begin
|
||
P := PWord(PWideChar(Result));
|
||
While (P^ <> 0) do begin
|
||
P^ := MakeWord(HiByte(P^), LoByte(P^));
|
||
Inc(P);
|
||
end;
|
||
end;
|
||
end;
|
||
end else if FileCharset = fcsUtf8 then begin
|
||
// BOM indicates UTF-8 text stream
|
||
SetLength(SA, ChunkSize div SizeOf(AnsiChar));
|
||
Stream.Read(PAnsiChar(SA)^, ChunkSize);
|
||
Result := UTF8Decode(SA);
|
||
end else begin
|
||
// without byte order mark it is assumed that we are loading ANSI text
|
||
SetLength(SA, ChunkSize div SizeOf(AnsiChar));
|
||
Stream.Read(PAnsiChar(SA)^, ChunkSize);
|
||
Result := SA;
|
||
end;
|
||
end;
|
||
|
||
{**
|
||
Read a unicode or ansi file into memory
|
||
}
|
||
function ReadTextfile(Filename: String): WideString;
|
||
var
|
||
Stream: TFileStream;
|
||
FileCharset: TFileCharset;
|
||
begin
|
||
OpenTextfile(Filename, Stream, FileCharset);
|
||
Result := ReadTextfileChunk(Stream, FileCharset);
|
||
Stream.Free;
|
||
end;
|
||
|
||
function ReadBinaryFile(Filename: String; MaxBytes: Int64): string;
|
||
var
|
||
Stream: TFileStream;
|
||
begin
|
||
Stream := TFileStream.Create(Filename, fmOpenRead or fmShareDenyNone);
|
||
Stream.Position := 0;
|
||
if (MaxBytes < 1) or (MaxBytes > Stream.Size) then MaxBytes := Stream.Size;
|
||
SetLength(Result, MaxBytes);
|
||
Stream.Read(PChar(Result)^, Length(Result));
|
||
Stream.Free;
|
||
end;
|
||
|
||
{ TUniClipboard }
|
||
|
||
function TUniClipboard.GetAsWideString: WideString;
|
||
var Data: THandle;
|
||
begin
|
||
Open;
|
||
Data := GetClipboardData(CF_UNICODETEXT);
|
||
try
|
||
if Data <> 0 then
|
||
Result := PWideChar(GlobalLock(Data))
|
||
else
|
||
Result := '';
|
||
finally
|
||
if Data <> 0 then GlobalUnlock(Data);
|
||
Close;
|
||
end;
|
||
end;
|
||
|
||
procedure TUniClipboard.SetAsWideString(Value: WideString);
|
||
begin
|
||
SetBuffer(CF_UNICODETEXT, PWideChar(Value)^, 2 * (Length(Value) + 1));
|
||
end;
|
||
|
||
procedure CopyToClipboard(Value: WideString);
|
||
var
|
||
CB: TUniClipboard;
|
||
begin
|
||
CB := TUniClipboard.Create;
|
||
CB.AsWideString := Value;
|
||
end;
|
||
|
||
|
||
procedure StreamToClipboard(S: TMemoryStream);
|
||
var
|
||
Content: String;
|
||
begin
|
||
SetLength(Content, S.Size);
|
||
S.Position := 0;
|
||
S.Read(Pointer(Content)^, S.Size);
|
||
CopyToClipboard(Utf8Decode(Content));
|
||
// Free memory
|
||
SetString(Content, nil, 0);
|
||
end;
|
||
|
||
|
||
procedure FixVT(VT: TVirtualStringTree);
|
||
var
|
||
ReadOnlyNodeHeight: Integer;
|
||
DC: HDC;
|
||
SaveFont: HFont;
|
||
I: Integer;
|
||
SysMetrics, Metrics: TTextMetric;
|
||
begin
|
||
// Resize hardcoded node height to work with different DPI settings
|
||
ReadOnlyNodeHeight := VT.Canvas.TextHeight('A') + 6;
|
||
if toEditable in VT.TreeOptions.MiscOptions then begin
|
||
// Editable nodes must have enough height for a TEdit, including its cursor
|
||
// Code taken from StdCtrls.TCustomEdit.AdjustHeight
|
||
DC := GetDC(0);
|
||
GetTextMetrics(DC, SysMetrics);
|
||
SaveFont := SelectObject(DC, VT.Font.Handle);
|
||
GetTextMetrics(DC, Metrics);
|
||
SelectObject(DC, SaveFont);
|
||
ReleaseDC(0, DC);
|
||
I := GetSystemMetrics(SM_CYBORDER) * 6;
|
||
VT.DefaultNodeHeight := Metrics.tmHeight + I;
|
||
end else
|
||
VT.DefaultNodeHeight := ReadOnlyNodeHeight;
|
||
// The header needs slightly more height than the normal nodes
|
||
VT.Header.Height := Trunc(ReadOnlyNodeHeight * 1.2);
|
||
// Disable hottracking in non-Vista mode, looks ugly in XP, but nice in Vista
|
||
if (toUseExplorerTheme in VT.TreeOptions.PaintOptions) and IsWindowsVista then
|
||
VT.TreeOptions.PaintOptions := VT.TreeOptions.PaintOptions + [toHotTrack]
|
||
else
|
||
VT.TreeOptions.PaintOptions := VT.TreeOptions.PaintOptions - [toHotTrack];
|
||
end;
|
||
|
||
|
||
function ColorAdjustBrightness(Col: TColor; ShiftPercent: ShortInt): TColor;
|
||
var
|
||
r, g, b, ShiftBytes: SmallInt;
|
||
begin
|
||
// Split colors
|
||
r := GetRValue(Col);
|
||
g := GetGValue(Col);
|
||
b := GetBValue(Col);
|
||
// Convert percent value to bytes
|
||
ShiftBytes := Round(ShiftPercent * 255 / 100);
|
||
// Adjust single colors
|
||
r := r + ShiftBytes;
|
||
g := g + ShiftBytes;
|
||
b := b + ShiftBytes;
|
||
// Fix exceeded bounds
|
||
if r > 255 then r := 255 else if r < 0 then r := 0;
|
||
if g > 255 then g := 255 else if g < 0 then g := 0;
|
||
if b > 255 then b := 255 else if b < 0 then b := 0;
|
||
// Merge result
|
||
Result := RGB(r, g, b);
|
||
end;
|
||
|
||
|
||
{**
|
||
Concat all sort options to a ORDER clause
|
||
}
|
||
function ComposeOrderClause(Cols: TOrderColArray): WideString;
|
||
var
|
||
i : Integer;
|
||
sort : String;
|
||
begin
|
||
result := '';
|
||
for i := 0 to Length(Cols) - 1 do
|
||
begin
|
||
if result <> '' then
|
||
result := result + ', ';
|
||
if Cols[i].SortDirection = ORDER_ASC then
|
||
sort := TXT_ASC
|
||
else
|
||
sort := TXT_DESC;
|
||
result := result + Mainform.Mask( Cols[i].ColumnName ) + ' ' + sort;
|
||
end;
|
||
end;
|
||
|
||
|
||
{**
|
||
Init main registry object and open desired key
|
||
Outsoureced from GetRegValue() to avoid redundant code
|
||
in these 3 overloaded methods.
|
||
}
|
||
procedure OpenRegistry(Session: String = '');
|
||
var
|
||
folder : String;
|
||
begin
|
||
if MainReg = nil then
|
||
MainReg := TRegistry.Create;
|
||
folder := REGPATH;
|
||
if Session <> '' then
|
||
folder := folder + REGKEY_SESSIONS + Session;
|
||
if MainReg.CurrentPath <> folder then
|
||
MainReg.OpenKey(folder, true);
|
||
end;
|
||
|
||
|
||
{**
|
||
Read a numeric preference value from registry
|
||
}
|
||
function GetRegValue( valueName: String; defaultValue: Integer; Session: String = '' ) : Integer;
|
||
begin
|
||
result := defaultValue;
|
||
OpenRegistry(Session);
|
||
if MainReg.ValueExists( valueName ) then
|
||
result := MainReg.ReadInteger( valueName );
|
||
end;
|
||
|
||
|
||
{***
|
||
Read a boolean preference value from registry
|
||
@param string Name of the value
|
||
@param boolean Default-value to return if valueName was not found
|
||
@param string Subkey of REGPATH where to search for the value
|
||
}
|
||
function GetRegValue( valueName: String; defaultValue: Boolean; Session: String = '' ) : Boolean;
|
||
begin
|
||
result := defaultValue;
|
||
OpenRegistry(Session);
|
||
if MainReg.ValueExists( valueName ) then
|
||
result := MainReg.ReadBool( valueName );
|
||
end;
|
||
|
||
|
||
|
||
{***
|
||
Read a text preference value from registry
|
||
}
|
||
function GetRegValue( valueName: String; defaultValue: String; Session: String = '' ) : String;
|
||
begin
|
||
result := defaultValue;
|
||
OpenRegistry(Session);
|
||
if MainReg.ValueExists( valueName ) then
|
||
result := MainReg.ReadString( valueName );
|
||
end;
|
||
|
||
|
||
procedure ResetVTNodes(Sender: TBaseVirtualTree);
|
||
var
|
||
Node: PVirtualNode;
|
||
begin
|
||
// Forces a VirtualTree to (re-)initialize its nodes.
|
||
// I wonder why this is not implemented in VirtualTree.
|
||
Node := Sender.GetFirst;
|
||
while Assigned(Node) do begin
|
||
Node.States := Node.States - [vsInitialized];
|
||
Node := Sender.GetNext(Node);
|
||
end;
|
||
end;
|
||
|
||
|
||
procedure EnableProgressBar(MaxValue: Integer);
|
||
begin
|
||
Mainform.ProgressBarStatus.Visible := True;
|
||
Mainform.ProgressBarStatus.Max := MaxValue;
|
||
Mainform.ProgressBarStatus.Position := 0;
|
||
end;
|
||
|
||
|
||
function CompareNumbers(List: TStringList; Index1, Index2: Integer): Integer;
|
||
var
|
||
Number1, Number2 : Extended;
|
||
begin
|
||
// Custom sort method for TStringLists
|
||
Number1 := MakeFloat( List[Index1] );
|
||
Number2 := MakeFloat( List[Index2] );
|
||
if Number1 > Number2 then
|
||
Result := 1
|
||
else if Number1 = Number2 then
|
||
Result := 0
|
||
else
|
||
Result := -1;
|
||
end;
|
||
|
||
|
||
function ListIndexByRegExpr(List: TWideStrings; Expression: WideString): Integer;
|
||
var
|
||
rx: TRegExpr;
|
||
i: Integer;
|
||
begin
|
||
// Find item in stringlist by passing a regular expression
|
||
rx := TRegExpr.Create;
|
||
rx.Expression := Expression;
|
||
rx.ModifierI := True;
|
||
Result := -1;
|
||
for i := 0 to List.Count - 1 do begin
|
||
if rx.Exec(List[i]) then begin
|
||
Result := i;
|
||
break;
|
||
end;
|
||
end;
|
||
FreeAndNil(rx);
|
||
end;
|
||
|
||
|
||
procedure RestoreSyneditStyles(Highlighter: TSynCustomHighlighter);
|
||
var
|
||
i: Integer;
|
||
Attri: TSynHighlighterAttributes;
|
||
begin
|
||
// Read font color, bold + italic style of SynEdit attributes from registry
|
||
// Default colors defined and used from highlighter on main form
|
||
for i := 0 to Highlighter.AttrCount - 1 do begin
|
||
Attri := Highlighter.Attribute[i];
|
||
Attri.Foreground := GetRegValue(REGPREFIX_SQLATTRI+Attri.FriendlyName+REGPOSTFIX_SQL_FG, Mainform.SynSQLSyn1.Attribute[i].Foreground);
|
||
Attri.Background := GetRegValue(REGPREFIX_SQLATTRI+Attri.FriendlyName+REGPOSTFIX_SQL_BG, Mainform.SynSQLSyn1.Attribute[i].Background);
|
||
Attri.IntegerStyle := GetRegValue(REGPREFIX_SQLATTRI+Attri.FriendlyName+REGPOSTFIX_SQL_STYLE, Mainform.SynSQLSyn1.Attribute[i].IntegerStyle)
|
||
end;
|
||
end;
|
||
|
||
|
||
procedure SelectNode(VT: TVirtualStringTree; idx: Cardinal; ParentNode: PVirtualNode=nil);
|
||
var
|
||
Node: PVirtualNode;
|
||
begin
|
||
// Helper to focus and highlight a node by its index
|
||
if Assigned(ParentNode) then
|
||
Node := VT.GetFirstChild(ParentNode)
|
||
else
|
||
Node := VT.GetFirst;
|
||
while Assigned(Node) do begin
|
||
if Node.Index = idx then begin
|
||
VT.FocusedNode := Node;
|
||
VT.Selected[Node] := True;
|
||
end else
|
||
VT.Selected[Node] := False;
|
||
Node := VT.GetNextSibling(Node);
|
||
end;
|
||
end;
|
||
|
||
|
||
function DateBackFriendlyCaption(d: TDateTime): String;
|
||
var
|
||
MonthsAgo, DaysAgo, HoursAgo, MinutesAgo: Int64;
|
||
begin
|
||
MonthsAgo := MonthsBetween(Now, d);
|
||
DaysAgo := DaysBetween(Now, d);
|
||
HoursAgo := HoursBetween(Now, d);
|
||
MinutesAgo := MinutesBetween(Now, d);
|
||
if MonthsAgo = 1 then Result := FormatNumber(MonthsAgo)+' month ago'
|
||
else if MonthsAgo > 1 then Result := FormatNumber(MonthsAgo)+' months ago'
|
||
else if DaysAgo = 1 then Result := FormatNumber(DaysAgo)+' day ago'
|
||
else if DaysAgo > 1 then Result := FormatNumber(DaysAgo)+' days ago'
|
||
else if HoursAgo = 1 then Result := FormatNumber(HoursAgo)+' hour ago'
|
||
else if HoursAgo > 1 then Result := FormatNumber(HoursAgo)+' hours ago'
|
||
else if MinutesAgo = 1 then Result := FormatNumber(MinutesAgo)+' minute ago'
|
||
else if MinutesAgo > 0 then Result := FormatNumber(MinutesAgo)+' minutes ago'
|
||
else Result := 'less than a minute ago';
|
||
end;
|
||
|
||
|
||
end.
|
||
|
||
|