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1779 lines
43 KiB
ObjectPascal
1779 lines
43 KiB
ObjectPascal
{
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Delphi/Kylix compatibility unit: String handling routines.
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This file is part of the Free Pascal run time library.
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Copyright (c) 1999-2005 by the Free Pascal development team
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See the file COPYING.FPC, included in this distribution,
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for details about the copyright.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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**********************************************************************}
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{$mode objfpc}
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{$h+}
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{$inline on}
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unit strutils;
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interface
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uses
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SysUtils{, Types};
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{ ---------------------------------------------------------------------
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Case insensitive search/replace
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---------------------------------------------------------------------}
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Function AnsiResemblesText(const AText, AOther: string): Boolean;
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Function AnsiContainsText(const AText, ASubText: string): Boolean;
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Function AnsiStartsText(const ASubText, AText: string): Boolean;inline;
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Function AnsiEndsText(const ASubText, AText: string): Boolean;inline;
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Function AnsiReplaceText(const AText, AFromText, AToText: string): string;inline;
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Function AnsiMatchText(const AText: string; const AValues: array of string): Boolean;inline;
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Function AnsiIndexText(const AText: string; const AValues: array of string): Integer;
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{ ---------------------------------------------------------------------
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Case sensitive search/replace
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---------------------------------------------------------------------}
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Function AnsiContainsStr(const AText, ASubText: string): Boolean;inline;
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Function AnsiStartsStr(const ASubText, AText: string): Boolean;inline;
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Function AnsiEndsStr(const ASubText, AText: string): Boolean;inline;
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Function AnsiReplaceStr(const AText, AFromText, AToText: string): string;inline;
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Function AnsiMatchStr(const AText: string; const AValues: array of string): Boolean;inline;
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Function AnsiIndexStr(const AText: string; const AValues: array of string): Integer;
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{ ---------------------------------------------------------------------
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Playthingies
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---------------------------------------------------------------------}
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Function DupeString(const AText: string; ACount: Integer): string;
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Function ReverseString(const AText: string): string;
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Function AnsiReverseString(const AText: AnsiString): AnsiString;inline;
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Function StuffString(const AText: string; AStart, ALength: Cardinal; const ASubText: string): string;
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Function RandomFrom(const AValues: array of string): string; overload;
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Function IfThen(AValue: Boolean; const ATrue: string; AFalse: string): string;inline;
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Function IfThen(AValue: Boolean; const ATrue: string): string;inline; // ; AFalse: string = ''
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{ ---------------------------------------------------------------------
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VB emulations.
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---------------------------------------------------------------------}
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Function LeftStr(const AText: AnsiString; const ACount: Integer): AnsiString;inline;
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Function RightStr(const AText: AnsiString; const ACount: Integer): AnsiString;
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Function MidStr(const AText: AnsiString; const AStart, ACount: Integer): AnsiString;inline;
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Function RightBStr(const AText: AnsiString; const AByteCount: Integer): AnsiString;inline;
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Function MidBStr(const AText: AnsiString; const AByteStart, AByteCount: Integer): AnsiString;inline;
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Function AnsiLeftStr(const AText: AnsiString; const ACount: Integer): AnsiString;inline;
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Function AnsiRightStr(const AText: AnsiString; const ACount: Integer): AnsiString;inline;
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Function AnsiMidStr(const AText: AnsiString; const AStart, ACount: Integer): AnsiString;inline;
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Function LeftBStr(const AText: AnsiString; const AByteCount: Integer): AnsiString;inline;
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Function LeftStr(const AText: WideString; const ACount: Integer): WideString;inline;
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Function RightStr(const AText: WideString; const ACount: Integer): WideString;
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Function MidStr(const AText: WideString; const AStart, ACount: Integer): WideString;inline;
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{ ---------------------------------------------------------------------
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Extended search and replace
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---------------------------------------------------------------------}
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const
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{ Default word delimiters are any character except the core alphanumerics. }
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WordDelimiters: set of Char = [#0..#255] - ['a'..'z','A'..'Z','1'..'9','0'];
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type
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TStringSearchOption = (soDown, soMatchCase, soWholeWord);
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TStringSearchOptions = set of TStringSearchOption;
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TStringSeachOption = TStringSearchOption;
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Function SearchBuf(Buf: PChar; BufLen: Integer; SelStart, SelLength: Integer; SearchString: String; Options: TStringSearchOptions): PChar;
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Function SearchBuf(Buf: PChar; BufLen: Integer; SelStart, SelLength: Integer; SearchString: String): PChar;inline; // ; Options: TStringSearchOptions = [soDown]
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Function PosEx(const SubStr, S: string; Offset: Cardinal): Integer;
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Function PosEx(const SubStr, S: string): Integer;inline; // Offset: Cardinal = 1
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Function PosEx(c:char; const S: string; Offset: Cardinal): Integer;
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{ ---------------------------------------------------------------------
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Soundex Functions.
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---------------------------------------------------------------------}
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type
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TSoundexLength = 1..MaxInt;
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Function Soundex(const AText: string; ALength: TSoundexLength): string;
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Function Soundex(const AText: string): string;inline; // ; ALength: TSoundexLength = 4
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type
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TSoundexIntLength = 1..8;
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Function SoundexInt(const AText: string; ALength: TSoundexIntLength): Integer;
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Function SoundexInt(const AText: string): Integer;inline; //; ALength: TSoundexIntLength = 4
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Function DecodeSoundexInt(AValue: Integer): string;
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Function SoundexWord(const AText: string): Word;
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Function DecodeSoundexWord(AValue: Word): string;
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Function SoundexSimilar(const AText, AOther: string; ALength: TSoundexLength): Boolean;inline;
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Function SoundexSimilar(const AText, AOther: string): Boolean;inline; //; ALength: TSoundexLength = 4
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Function SoundexCompare(const AText, AOther: string; ALength: TSoundexLength): Integer;inline;
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Function SoundexCompare(const AText, AOther: string): Integer;inline; //; ALength: TSoundexLength = 4
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Function SoundexProc(const AText, AOther: string): Boolean;
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type
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TCompareTextProc = Function(const AText, AOther: string): Boolean;
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Const
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AnsiResemblesProc: TCompareTextProc = @SoundexProc;
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{ ---------------------------------------------------------------------
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Other functions, based on RxStrUtils.
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---------------------------------------------------------------------}
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function IsEmptyStr(const S: string; const EmptyChars: TSysCharSet): Boolean;
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function DelSpace(const S: string): string;
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function DelChars(const S: string; Chr: Char): string;
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function DelSpace1(const S: string): string;
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function Tab2Space(const S: string; Numb: Byte): string;
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function NPos(const C: string; S: string; N: Integer): Integer;
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Function RPosEX(C:char;const S : AnsiString;offs:cardinal):Integer; overload;
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Function RPosex (Const Substr : AnsiString; Const Source : AnsiString;offs:cardinal) : Integer; overload;
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Function RPos(c:char;const S : AnsiString):Integer; overload;
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Function RPos (Const Substr : AnsiString; Const Source : AnsiString) : Integer; overload;
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function AddChar(C: Char; const S: string; N: Integer): string;
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function AddCharR(C: Char; const S: string; N: Integer): string;
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function PadLeft(const S: string; N: Integer): string;inline;
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function PadRight(const S: string; N: Integer): string;inline;
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function PadCenter(const S: string; Len: Integer): string;
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function Copy2Symb(const S: string; Symb: Char): string;
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function Copy2SymbDel(var S: string; Symb: Char): string;
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function Copy2Space(const S: string): string;inline;
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function Copy2SpaceDel(var S: string): string;inline;
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function AnsiProperCase(const S: string; const WordDelims: TSysCharSet): string;
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function WordCount(const S: string; const WordDelims: TSysCharSet): Integer;
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function WordPosition(const N: Integer; const S: string; const WordDelims: TSysCharSet): Integer;
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function ExtractWord(N: Integer; const S: string; const WordDelims: TSysCharSet): string;inline;
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function ExtractWordPos(N: Integer; const S: string; const WordDelims: TSysCharSet; var Pos: Integer): string;
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function ExtractDelimited(N: Integer; const S: string; const Delims: TSysCharSet): string;
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function ExtractSubstr(const S: string; var Pos: Integer; const Delims: TSysCharSet): string;
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function IsWordPresent(const W, S: string; const WordDelims: TSysCharSet): Boolean;
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function FindPart(const HelpWilds, InputStr: string): Integer;
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function IsWild(InputStr, Wilds: string; IgnoreCase: Boolean): Boolean;
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function XorString(const Key, Src: ShortString): ShortString;
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function XorEncode(const Key, Source: string): string;
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function XorDecode(const Key, Source: string): string;
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function GetCmdLineArg(const Switch: string; SwitchChars: TSysCharSet): string;
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function Numb2USA(const S: string): string;
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function Hex2Dec(const S: string): Longint;
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function Dec2Numb(N: Longint; Len, Base: Byte): string;
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function Numb2Dec(S: string; Base: Byte): Longint;
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function IntToBin(Value: Longint; Digits, Spaces: Integer): string;
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function IntToRoman(Value: Longint): string;
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function RomanToInt(const S: string): Longint;
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procedure BinToHex(BinValue, HexValue: PChar; BinBufSize: Integer);
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function HexToBin(HexValue, BinValue: PChar; BinBufSize: Integer): Integer;
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const
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DigitChars = ['0'..'9'];
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Brackets = ['(',')','[',']','{','}'];
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StdWordDelims = [#0..' ',',','.',';','/','\',':','''','"','`'] + Brackets;
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StdSwitchChars = ['-','/'];
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function PosSet (const c:TSysCharSet;const s : ansistring ):Integer;
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function PosSet (const c:string;const s : ansistring ):Integer;
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function PosSetEx (const c:TSysCharSet;const s : ansistring;count:Integer ):Integer;
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function PosSetEx (const c:string;const s : ansistring;count:Integer ):Integer;
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Procedure Removeleadingchars(VAR S : AnsiString; Const CSet:TSysCharset);
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Procedure RemoveTrailingChars(VAR S : AnsiString;Const CSet:TSysCharset);
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Procedure RemovePadChars(VAR S : AnsiString;Const CSet:TSysCharset);
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function TrimLeftSet(const S: String;const CSet:TSysCharSet): String;
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Function TrimRightSet(const S: String;const CSet:TSysCharSet): String;
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function TrimSet(const S: String;const CSet:TSysCharSet): String;
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implementation
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{ ---------------------------------------------------------------------
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Auxiliary functions
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---------------------------------------------------------------------}
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Procedure NotYetImplemented (FN : String);
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begin
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Raise Exception.CreateFmt('Function "%s" (strutils) is not yet implemented',[FN]);
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end;
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{ ---------------------------------------------------------------------
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Case insensitive search/replace
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---------------------------------------------------------------------}
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Function AnsiResemblesText(const AText, AOther: string): Boolean;
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begin
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if Assigned(AnsiResemblesProc) then
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Result:=AnsiResemblesProc(AText,AOther)
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else
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Result:=False;
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end;
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Function AnsiContainsText(const AText, ASubText: string): Boolean;
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begin
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AnsiContainsText:=AnsiPos(AnsiUppercase(ASubText),AnsiUppercase(AText))>0;
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end;
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Function AnsiStartsText(const ASubText, AText: string): Boolean;inline;
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begin
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Result:=AnsiCompareText(Copy(AText,1,Length(AsubText)),ASubText)=0;
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end;
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Function AnsiEndsText(const ASubText, AText: string): Boolean;inline;
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begin
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result:=AnsiCompareText(Copy(AText,Length(AText)-Length(ASubText)+1,Length(ASubText)),asubtext)=0;
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end;
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Function AnsiReplaceText(const AText, AFromText, AToText: string): string;inline;
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begin
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Result := StringReplace(AText,AFromText,AToText,[rfReplaceAll,rfIgnoreCase]);
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end;
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Function AnsiMatchText(const AText: string; const AValues: array of string): Boolean;inline;
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begin
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Result:=(AnsiIndexText(AText,AValues)<>-1)
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end;
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Function AnsiIndexText(const AText: string; const AValues: array of string): Integer;
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var i : longint;
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begin
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result:=-1;
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if high(AValues)=-1 Then
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Exit;
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for i:=low(AValues) to High(Avalues) do
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if CompareText(avalues[i],atext)=0 Then
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exit(i); // make sure it is the first val.
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end;
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{ ---------------------------------------------------------------------
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Case sensitive search/replace
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---------------------------------------------------------------------}
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Function AnsiContainsStr(const AText, ASubText: string): Boolean;inline;
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begin
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Result := AnsiPos(ASubText,AText)>0;
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end;
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Function AnsiStartsStr(const ASubText, AText: string): Boolean;inline;
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begin
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Result := AnsiPos(ASubText,AText)=1;
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end;
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Function AnsiEndsStr(const ASubText, AText: string): Boolean;inline;
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begin
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Result := AnsiCompareStr(Copy(AText,length(AText)-length(ASubText)+1,length(ASubText)),ASubText)=0;
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end;
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Function AnsiReplaceStr(const AText, AFromText, AToText: string): string;inline;
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begin
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Result := StringReplace(AText,AFromText,AToText,[rfReplaceAll]);
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end;
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Function AnsiMatchStr(const AText: string; const AValues: array of string): Boolean;inline;
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begin
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Result:=AnsiIndexStr(AText,Avalues)<>-1;
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end;
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Function AnsiIndexStr(const AText: string; const AValues: array of string): Integer;
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var
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i : longint;
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begin
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result:=-1;
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if high(AValues)=-1 Then
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Exit;
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for i:=low(AValues) to High(Avalues) do
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if (avalues[i]=AText) Then
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exit(i); // make sure it is the first val.
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end;
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{ ---------------------------------------------------------------------
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Playthingies
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---------------------------------------------------------------------}
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Function DupeString(const AText: string; ACount: Integer): string;
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var i,l : integer;
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begin
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result:='';
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if aCount>=0 then
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begin
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l:=length(atext);
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SetLength(result,aCount*l);
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for i:=0 to ACount-1 do
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move(atext[1],Result[l*i+1],l);
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end;
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end;
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Function ReverseString(const AText: string): string;
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var
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i,j:longint;
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begin
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setlength(result,length(atext));
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i:=1; j:=length(atext);
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while (i<=j) do
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begin
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result[i]:=atext[j-i+1];
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inc(i);
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end;
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end;
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Function AnsiReverseString(const AText: AnsiString): AnsiString;inline;
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begin
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Result:=ReverseString(AText);
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end;
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Function StuffString(const AText: string; AStart, ALength: Cardinal; const ASubText: string): string;
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var i,j : SizeUInt;
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begin
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j:=length(ASubText);
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i:=length(AText);
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SetLength(Result,i+j-ALength);
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move (AText[1],result[1],AStart-1);
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move (ASubText[1],result[AStart],j);
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move (AText[AStart+ALength], Result[AStart+j],i+1-AStart-ALength);
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end;
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Function RandomFrom(const AValues: array of string): string; overload;
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begin
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if high(AValues)=-1 then exit('');
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result:=Avalues[random(High(AValues)+1)];
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end;
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Function IfThen(AValue: Boolean; const ATrue: string; AFalse: string): string;inline;
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begin
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if avalue then
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result:=atrue
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else
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result:=afalse;
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end;
|
||
|
||
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||
|
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Function IfThen(AValue: Boolean; const ATrue: string): string;inline; // ; AFalse: string = ''
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||
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begin
|
||
if avalue then
|
||
result:=atrue
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else
|
||
result:='';
|
||
end;
|
||
|
||
|
||
|
||
{ ---------------------------------------------------------------------
|
||
VB emulations.
|
||
---------------------------------------------------------------------}
|
||
|
||
Function LeftStr(const AText: AnsiString; const ACount: Integer): AnsiString;inline;
|
||
|
||
begin
|
||
Result:=Copy(AText,1,ACount);
|
||
end;
|
||
|
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Function RightStr(const AText: AnsiString; const ACount: Integer): AnsiString;
|
||
|
||
var j,l:integer;
|
||
|
||
begin
|
||
l:=length(atext);
|
||
j:=ACount;
|
||
if j>l then j:=l;
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Result:=Copy(AText,l-j+1,j);
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end;
|
||
|
||
Function MidStr(const AText: AnsiString; const AStart, ACount: Integer): AnsiString;inline;
|
||
|
||
begin
|
||
if (ACount=0) or (AStart>length(atext)) then
|
||
exit('');
|
||
Result:=Copy(AText,AStart,ACount);
|
||
end;
|
||
|
||
|
||
|
||
Function LeftBStr(const AText: AnsiString; const AByteCount: Integer): AnsiString;inline;
|
||
|
||
begin
|
||
Result:=LeftStr(AText,AByteCount);
|
||
end;
|
||
|
||
|
||
Function RightBStr(const AText: AnsiString; const AByteCount: Integer): AnsiString;inline;
|
||
begin
|
||
Result:=RightStr(Atext,AByteCount);
|
||
end;
|
||
|
||
|
||
Function MidBStr(const AText: AnsiString; const AByteStart, AByteCount: Integer): AnsiString;inline;
|
||
begin
|
||
Result:=MidStr(AText,AByteStart,AByteCount);
|
||
end;
|
||
|
||
|
||
Function AnsiLeftStr(const AText: AnsiString; const ACount: Integer): AnsiString;inline;
|
||
begin
|
||
Result := copy(AText,1,ACount);
|
||
end;
|
||
|
||
|
||
Function AnsiRightStr(const AText: AnsiString; const ACount: Integer): AnsiString;inline;
|
||
begin
|
||
Result := copy(AText,length(AText)-ACount+1,ACount);
|
||
end;
|
||
|
||
|
||
Function AnsiMidStr(const AText: AnsiString; const AStart, ACount: Integer): AnsiString;inline;
|
||
begin
|
||
Result:=Copy(AText,AStart,ACount);
|
||
end;
|
||
|
||
|
||
Function LeftStr(const AText: WideString; const ACount: Integer): WideString;inline;
|
||
begin
|
||
Result:=Copy(AText,1,ACount);
|
||
end;
|
||
|
||
|
||
Function RightStr(const AText: WideString; const ACount: Integer): WideString;
|
||
var
|
||
j,l:integer;
|
||
begin
|
||
l:=length(atext);
|
||
j:=ACount;
|
||
if j>l then j:=l;
|
||
Result:=Copy(AText,l-j+1,j);
|
||
end;
|
||
|
||
|
||
Function MidStr(const AText: WideString; const AStart, ACount: Integer): WideString;inline;
|
||
begin
|
||
Result:=Copy(AText,AStart,ACount);
|
||
end;
|
||
|
||
|
||
{ ---------------------------------------------------------------------
|
||
Extended search and replace
|
||
---------------------------------------------------------------------}
|
||
|
||
Function SearchBuf(Buf: PChar; BufLen: Integer; SelStart, SelLength: Integer; SearchString: String; Options: TStringSearchOptions): PChar;
|
||
|
||
var
|
||
Len,I,SLen: Integer;
|
||
C: Char;
|
||
Found : Boolean;
|
||
Direction: Shortint;
|
||
CharMap: array[Char] of Char;
|
||
|
||
Function GotoNextWord(var P : PChar): Boolean;
|
||
|
||
begin
|
||
if (Direction=1) then
|
||
begin
|
||
// Skip characters
|
||
While (Len>0) and not (P^ in WordDelimiters) do
|
||
begin
|
||
Inc(P);
|
||
Dec(Len);
|
||
end;
|
||
// skip delimiters
|
||
While (Len>0) and (P^ in WordDelimiters) do
|
||
begin
|
||
Inc(P);
|
||
Dec(Len);
|
||
end;
|
||
Result:=Len>0;
|
||
end
|
||
else
|
||
begin
|
||
// Skip Delimiters
|
||
While (Len>0) and (P^ in WordDelimiters) do
|
||
begin
|
||
Dec(P);
|
||
Dec(Len);
|
||
end;
|
||
// skip characters
|
||
While (Len>0) and not (P^ in WordDelimiters) do
|
||
begin
|
||
Dec(P);
|
||
Dec(Len);
|
||
end;
|
||
Result:=Len>0;
|
||
// We're on the first delimiter. Pos back on char.
|
||
Inc(P);
|
||
Inc(Len);
|
||
end;
|
||
end;
|
||
|
||
begin
|
||
Result:=nil;
|
||
Slen:=Length(SearchString);
|
||
if (BufLen<=0) or (Slen=0) then
|
||
Exit;
|
||
if soDown in Options then
|
||
begin
|
||
Direction:=1;
|
||
Inc(SelStart,SelLength);
|
||
Len:=BufLen-SelStart-SLen+1;
|
||
if (Len<=0) then
|
||
Exit;
|
||
end
|
||
else
|
||
begin
|
||
Direction:=-1;
|
||
Dec(SelStart,Length(SearchString));
|
||
Len:=SelStart+1;
|
||
end;
|
||
if (SelStart<0) or (SelStart>BufLen) then
|
||
Exit;
|
||
Result:=@Buf[SelStart];
|
||
for C:=Low(Char) to High(Char) do
|
||
if (soMatchCase in Options) then
|
||
CharMap[C]:=C
|
||
else
|
||
CharMap[C]:=Upcase(C);
|
||
if Not (soMatchCase in Options) then
|
||
SearchString:=UpCase(SearchString);
|
||
Found:=False;
|
||
while (Result<>Nil) and (Not Found) do
|
||
begin
|
||
if ((soWholeWord in Options) and
|
||
(Result<>@Buf[SelStart]) and
|
||
not GotoNextWord(Result)) then
|
||
Result:=Nil
|
||
else
|
||
begin
|
||
// try to match whole searchstring
|
||
I:=0;
|
||
while (I<Slen) and (CharMap[Result[I]]=SearchString[I+1]) do
|
||
Inc(I);
|
||
// Whole searchstring matched ?
|
||
if (I=SLen) then
|
||
Found:=(Len=0) or
|
||
(not (soWholeWord in Options)) or
|
||
(Result[SLen] in WordDelimiters);
|
||
if not Found then
|
||
begin
|
||
Inc(Result,Direction);
|
||
Dec(Len);
|
||
If (Len=0) then
|
||
Result:=Nil;
|
||
end;
|
||
end;
|
||
end;
|
||
end;
|
||
|
||
|
||
|
||
Function SearchBuf(Buf: PChar; BufLen: Integer; SelStart, SelLength: Integer; SearchString: String): PChar;inline; // ; Options: TStringSearchOptions = [soDown]
|
||
begin
|
||
Result:=SearchBuf(Buf,BufLen,SelStart,SelLength,SearchString,[soDown]);
|
||
end;
|
||
|
||
|
||
Function PosEx(const SubStr, S: string; Offset: Cardinal): Integer;
|
||
|
||
var i : pchar;
|
||
begin
|
||
if (offset<1) or (offset>SizeUInt(length(s))) then exit(0);
|
||
i:=strpos(@s[offset],@substr[1]);
|
||
if i=nil then
|
||
PosEx:=0
|
||
else
|
||
PosEx:=succ(i-pchar(s));
|
||
end;
|
||
|
||
|
||
Function PosEx(const SubStr, S: string): Integer;inline; // Offset: Cardinal = 1
|
||
begin
|
||
posex:=posex(substr,s,1);
|
||
end;
|
||
|
||
|
||
Function PosEx(c:char; const S: string; Offset: Cardinal): Integer;
|
||
|
||
var l : longint;
|
||
begin
|
||
if (offset<1) or (offset>SizeUInt(length(s))) then exit(0);
|
||
l:=length(s);
|
||
{$ifndef useindexbyte}
|
||
while (SizeInt(offset)<=l) and (s[offset]<>c) do inc(offset);
|
||
if SizeInt(offset)>l then
|
||
posex:=0
|
||
else
|
||
posex:=offset;
|
||
{$else}
|
||
posex:=offset+indexbyte(s[offset],l-offset+1);
|
||
if posex=(offset-1) then
|
||
posex:=0;
|
||
{$endif}
|
||
end;
|
||
|
||
|
||
{ ---------------------------------------------------------------------
|
||
Soundex Functions.
|
||
---------------------------------------------------------------------}
|
||
Const
|
||
SScore : array[1..255] of Char =
|
||
('0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0', // 1..32
|
||
'0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0', // 33..64
|
||
'0','1','2','3','0','1','2','i','0','2','2','4','5','5','0','1','2','6','2','3','0','1','i','2','i','2', // 64..90
|
||
'0','0','0','0','0','0', // 91..95
|
||
'0','1','2','3','0','1','2','i','0','2','2','4','5','5','0','1','2','6','2','3','0','1','i','2','i','2', // 96..122
|
||
'0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0', // 123..154
|
||
'0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0', // 155..186
|
||
'0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0', // 187..218
|
||
'0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0', // 219..250
|
||
'0','0','0','0','0'); // 251..255
|
||
|
||
|
||
|
||
Function Soundex(const AText: string; ALength: TSoundexLength): string;
|
||
|
||
Var
|
||
S,PS : Char;
|
||
I,L : integer;
|
||
|
||
begin
|
||
Result:='';
|
||
PS:=#0;
|
||
If Length(AText)>0 then
|
||
begin
|
||
Result:=Upcase(AText[1]);
|
||
I:=2;
|
||
L:=Length(AText);
|
||
While (I<=L) and (Length(Result)<ALength) do
|
||
begin
|
||
S:=SScore[Ord(AText[i])];
|
||
If Not (S in ['0','i',PS]) then
|
||
Result:=Result+S;
|
||
If (S<>'i') then
|
||
PS:=S;
|
||
Inc(I);
|
||
end;
|
||
end;
|
||
L:=Length(Result);
|
||
If (L<ALength) then
|
||
Result:=Result+StringOfChar('0',Alength-L);
|
||
end;
|
||
|
||
|
||
|
||
Function Soundex(const AText: string): string;inline; // ; ALength: TSoundexLength = 4
|
||
|
||
begin
|
||
Result:=Soundex(AText,4);
|
||
end;
|
||
|
||
Const
|
||
Ord0 = Ord('0');
|
||
OrdA = Ord('A');
|
||
|
||
Function SoundexInt(const AText: string; ALength: TSoundexIntLength): Integer;
|
||
|
||
var
|
||
SE: string;
|
||
I: Integer;
|
||
|
||
begin
|
||
Result:=-1;
|
||
SE:=Soundex(AText,ALength);
|
||
If Length(SE)>0 then
|
||
begin
|
||
Result:=Ord(SE[1])-OrdA;
|
||
if ALength > 1 then
|
||
begin
|
||
Result:=Result*26+(Ord(SE[2])-Ord0);
|
||
for I:=3 to ALength do
|
||
Result:=(Ord(SE[I])-Ord0)+Result*7;
|
||
end;
|
||
Result:=ALength+Result*9;
|
||
end;
|
||
end;
|
||
|
||
|
||
Function SoundexInt(const AText: string): Integer;inline; //; ALength: TSoundexIntLength = 4
|
||
begin
|
||
Result:=SoundexInt(AText,4);
|
||
end;
|
||
|
||
|
||
Function DecodeSoundexInt(AValue: Integer): string;
|
||
|
||
var
|
||
I, Len: Integer;
|
||
|
||
begin
|
||
Result := '';
|
||
Len := AValue mod 9;
|
||
AValue := AValue div 9;
|
||
for I:=Len downto 3 do
|
||
begin
|
||
Result:=Chr(Ord0+(AValue mod 7))+Result;
|
||
AValue:=AValue div 7;
|
||
end;
|
||
if Len>2 then
|
||
Result:=IntToStr(AValue mod 26)+Result;
|
||
AValue:=AValue div 26;
|
||
Result:=Chr(OrdA+AValue)+Result;
|
||
end;
|
||
|
||
|
||
Function SoundexWord(const AText: string): Word;
|
||
|
||
Var
|
||
S : String;
|
||
|
||
begin
|
||
S:=SoundEx(Atext,4);
|
||
Result:=Ord(S[1])-OrdA;
|
||
Result:=Result*26+StrToInt(S[2]);
|
||
Result:=Result*7+StrToInt(S[3]);
|
||
Result:=Result*7+StrToInt(S[4]);
|
||
end;
|
||
|
||
|
||
Function DecodeSoundexWord(AValue: Word): string;
|
||
begin
|
||
Result := Chr(Ord0+ (AValue mod 7));
|
||
AValue := AValue div 7;
|
||
Result := Chr(Ord0+ (AValue mod 7)) + Result;
|
||
AValue := AValue div 7;
|
||
Result := IntToStr(AValue mod 26) + Result;
|
||
AValue := AValue div 26;
|
||
Result := Chr(OrdA+AValue) + Result;
|
||
end;
|
||
|
||
|
||
Function SoundexSimilar(const AText, AOther: string; ALength: TSoundexLength): Boolean;inline;
|
||
begin
|
||
Result:=Soundex(AText,ALength)=Soundex(AOther,ALength);
|
||
end;
|
||
|
||
|
||
Function SoundexSimilar(const AText, AOther: string): Boolean;inline; //; ALength: TSoundexLength = 4
|
||
begin
|
||
Result:=SoundexSimilar(AText,AOther,4);
|
||
end;
|
||
|
||
|
||
Function SoundexCompare(const AText, AOther: string; ALength: TSoundexLength): Integer;inline;
|
||
begin
|
||
Result:=AnsiCompareStr(Soundex(AText,ALength),Soundex(AOther,ALength));
|
||
end;
|
||
|
||
|
||
Function SoundexCompare(const AText, AOther: string): Integer;inline; //; ALength: TSoundexLength = 4
|
||
begin
|
||
Result:=SoundexCompare(AText,AOther,4);
|
||
end;
|
||
|
||
|
||
Function SoundexProc(const AText, AOther: string): Boolean;
|
||
begin
|
||
Result:=SoundexSimilar(AText,AOther);
|
||
end;
|
||
|
||
{ ---------------------------------------------------------------------
|
||
RxStrUtils-like functions.
|
||
---------------------------------------------------------------------}
|
||
|
||
|
||
function IsEmptyStr(const S: string; const EmptyChars: TSysCharSet): Boolean;
|
||
|
||
var
|
||
i,l: Integer;
|
||
|
||
begin
|
||
l:=Length(S);
|
||
i:=1;
|
||
Result:=True;
|
||
while Result and (i<=l) do
|
||
begin
|
||
Result:=Not (S[i] in EmptyChars);
|
||
Inc(i);
|
||
end;
|
||
end;
|
||
|
||
function DelSpace(const S: String): string;
|
||
|
||
begin
|
||
Result:=DelChars(S,' ');
|
||
end;
|
||
|
||
function DelChars(const S: string; Chr: Char): string;
|
||
|
||
var
|
||
I,J: Integer;
|
||
|
||
begin
|
||
Result:=S;
|
||
I:=Length(Result);
|
||
While I>0 do
|
||
begin
|
||
if Result[I]=Chr then
|
||
begin
|
||
J:=I-1;
|
||
While (J>0) and (Result[J]=Chr) do
|
||
Dec(j);
|
||
Delete(Result,J+1,I-J);
|
||
I:=J+1;
|
||
end;
|
||
dec(I);
|
||
end;
|
||
end;
|
||
|
||
function DelSpace1(const S: string): string;
|
||
|
||
var
|
||
i: Integer;
|
||
|
||
begin
|
||
Result:=S;
|
||
for i:=Length(Result) downto 2 do
|
||
if (Result[i]=' ') and (Result[I-1]=' ') then
|
||
Delete(Result,I,1);
|
||
end;
|
||
|
||
function Tab2Space(const S: string; Numb: Byte): string;
|
||
|
||
var
|
||
I: Integer;
|
||
|
||
begin
|
||
I:=1;
|
||
Result:=S;
|
||
while I <= Length(Result) do
|
||
if Result[I]<>Chr(9) then
|
||
inc(I)
|
||
else
|
||
begin
|
||
Result[I]:=' ';
|
||
If (Numb>1) then
|
||
Insert(StringOfChar('0',Numb-1),Result,I);
|
||
Inc(I,Numb);
|
||
end;
|
||
end;
|
||
|
||
function NPos(const C: string; S: string; N: Integer): Integer;
|
||
|
||
var
|
||
i,p,k: Integer;
|
||
|
||
begin
|
||
Result:=0;
|
||
if N<1 then
|
||
Exit;
|
||
k:=0;
|
||
i:=1;
|
||
Repeat
|
||
p:=pos(C,S);
|
||
Inc(k,p);
|
||
if p>0 then
|
||
delete(S,1,p);
|
||
Inc(i);
|
||
Until (i>n) or (p=0);
|
||
If (P>0) then
|
||
Result:=K;
|
||
end;
|
||
|
||
function AddChar(C: Char; const S: string; N: Integer): string;
|
||
|
||
Var
|
||
l : Integer;
|
||
|
||
begin
|
||
Result:=S;
|
||
l:=Length(Result);
|
||
if l<N then
|
||
Result:=StringOfChar(C,N-l)+Result;
|
||
end;
|
||
|
||
function AddCharR(C: Char; const S: string; N: Integer): string;
|
||
|
||
Var
|
||
l : Integer;
|
||
|
||
begin
|
||
Result:=S;
|
||
l:=Length(Result);
|
||
if l<N then
|
||
Result:=Result+StringOfChar(C,N-l);
|
||
end;
|
||
|
||
|
||
function PadRight(const S: string; N: Integer): string;inline;
|
||
begin
|
||
Result:=AddCharR(' ',S,N);
|
||
end;
|
||
|
||
|
||
function PadLeft(const S: string; N: Integer): string;inline;
|
||
begin
|
||
Result:=AddChar(' ',S,N);
|
||
end;
|
||
|
||
|
||
function Copy2Symb(const S: string; Symb: Char): string;
|
||
|
||
var
|
||
p: Integer;
|
||
|
||
begin
|
||
p:=Pos(Symb,S);
|
||
if p=0 then
|
||
p:=Length(S)+1;
|
||
Result:=Copy(S,1,p-1);
|
||
end;
|
||
|
||
function Copy2SymbDel(var S: string; Symb: Char): string;
|
||
|
||
var
|
||
p: Integer;
|
||
|
||
begin
|
||
p:=Pos(Symb,S);
|
||
if p=0 then
|
||
begin
|
||
result:=s;
|
||
s:='';
|
||
end
|
||
else
|
||
begin
|
||
Result:=Copy(S,1,p-1);
|
||
delete(s,1,p);
|
||
end;
|
||
end;
|
||
|
||
function Copy2Space(const S: string): string;inline;
|
||
begin
|
||
Result:=Copy2Symb(S,' ');
|
||
end;
|
||
|
||
function Copy2SpaceDel(var S: string): string;inline;
|
||
begin
|
||
Result:=Copy2SymbDel(S,' ');
|
||
end;
|
||
|
||
function AnsiProperCase(const S: string; const WordDelims: TSysCharSet): string;
|
||
|
||
var
|
||
// l : Integer;
|
||
P,PE : PChar;
|
||
|
||
begin
|
||
Result:=AnsiLowerCase(S);
|
||
P:=PChar(Result);
|
||
PE:=P+Length(Result);
|
||
while (P<PE) do
|
||
begin
|
||
while (P<PE) and (P^ in WordDelims) do
|
||
inc(P);
|
||
if (P<PE) then
|
||
P^:=UpCase(P^);
|
||
while (P<PE) and not (P^ in WordDelims) do
|
||
inc(P);
|
||
end;
|
||
end;
|
||
|
||
function WordCount(const S: string; const WordDelims: TSysCharSet): Integer;
|
||
|
||
var
|
||
P,PE : PChar;
|
||
|
||
begin
|
||
Result:=0;
|
||
P:=Pchar(S);
|
||
PE:=P+Length(S);
|
||
while (P<PE) do
|
||
begin
|
||
while (P<PE) and (P^ in WordDelims) do
|
||
Inc(P);
|
||
if (P<PE) then
|
||
inc(Result);
|
||
while (P<PE) and not (P^ in WordDelims) do
|
||
inc(P);
|
||
end;
|
||
end;
|
||
|
||
function WordPosition(const N: Integer; const S: string; const WordDelims: TSysCharSet): Integer;
|
||
|
||
var
|
||
PS,P,PE : PChar;
|
||
Count: Integer;
|
||
|
||
begin
|
||
Result:=0;
|
||
Count:=0;
|
||
PS:=PChar(S);
|
||
PE:=PS+Length(S);
|
||
P:=PS;
|
||
while (P<PE) and (Count<>N) do
|
||
begin
|
||
while (P<PE) and (P^ in WordDelims) do
|
||
inc(P);
|
||
if (P<PE) then
|
||
inc(Count);
|
||
if (Count<>N) then
|
||
while (P<PE) and not (P^ in WordDelims) do
|
||
inc(P)
|
||
else
|
||
Result:=(P-PS)+1;
|
||
end;
|
||
end;
|
||
|
||
|
||
function ExtractWord(N: Integer; const S: string; const WordDelims: TSysCharSet): string;inline;
|
||
var
|
||
i: Integer;
|
||
begin
|
||
Result:=ExtractWordPos(N,S,WordDelims,i);
|
||
end;
|
||
|
||
|
||
function ExtractWordPos(N: Integer; const S: string; const WordDelims: TSysCharSet; var Pos: Integer): string;
|
||
var
|
||
i,j,l: Integer;
|
||
begin
|
||
j:=0;
|
||
i:=WordPosition(N, S, WordDelims);
|
||
Pos:=i;
|
||
if (i<>0) then
|
||
begin
|
||
j:=i;
|
||
l:=Length(S);
|
||
while (j<=L) and not (S[j] in WordDelims) do
|
||
inc(j);
|
||
end;
|
||
SetLength(Result,j-i);
|
||
If ((j-i)>0) then
|
||
Move(S[i],Result[1],j-i);
|
||
end;
|
||
|
||
function ExtractDelimited(N: Integer; const S: string; const Delims: TSysCharSet): string;
|
||
var
|
||
w,i,l,len: Integer;
|
||
begin
|
||
w:=0;
|
||
i:=1;
|
||
l:=0;
|
||
len:=Length(S);
|
||
SetLength(Result, 0);
|
||
while (i<=len) and (w<>N) do
|
||
begin
|
||
if s[i] in Delims then
|
||
inc(w)
|
||
else
|
||
begin
|
||
if (N-1)=w then
|
||
begin
|
||
inc(l);
|
||
SetLength(Result,l);
|
||
Result[L]:=S[i];
|
||
end;
|
||
end;
|
||
inc(i);
|
||
end;
|
||
end;
|
||
|
||
function ExtractSubstr(const S: string; var Pos: Integer; const Delims: TSysCharSet): string;
|
||
|
||
var
|
||
i,l: Integer;
|
||
|
||
begin
|
||
i:=Pos;
|
||
l:=Length(S);
|
||
while (i<=l) and not (S[i] in Delims) do
|
||
inc(i);
|
||
Result:=Copy(S,Pos,i-Pos);
|
||
if (i<=l) and (S[i] in Delims) then
|
||
inc(i);
|
||
Pos:=i;
|
||
end;
|
||
|
||
function isWordPresent(const W, S: string; const WordDelims: TSysCharSet): Boolean;
|
||
|
||
var
|
||
i,Count : Integer;
|
||
|
||
begin
|
||
Result:=False;
|
||
Count:=WordCount(S, WordDelims);
|
||
I:=1;
|
||
While (Not Result) and (I<=Count) do
|
||
begin
|
||
Result:=ExtractWord(i,S,WordDelims)=W;
|
||
Inc(i);
|
||
end;
|
||
end;
|
||
|
||
|
||
function Numb2USA(const S: string): string;
|
||
var
|
||
i, NA: Integer;
|
||
begin
|
||
i:=Length(S);
|
||
Result:=S;
|
||
NA:=0;
|
||
while (i > 0) do begin
|
||
if ((Length(Result) - i + 1 - NA) mod 3 = 0) and (i <> 1) then
|
||
begin
|
||
insert(',', Result, i);
|
||
inc(NA);
|
||
end;
|
||
Dec(i);
|
||
end;
|
||
end;
|
||
|
||
function PadCenter(const S: string; Len: Integer): string;
|
||
begin
|
||
if Length(S)<Len then
|
||
begin
|
||
Result:=StringOfChar(' ',(Len div 2) -(Length(S) div 2))+S;
|
||
Result:=Result+StringOfChar(' ',Len-Length(Result));
|
||
end
|
||
else
|
||
Result:=S;
|
||
end;
|
||
|
||
function Hex2Dec(const S: string): Longint;
|
||
var
|
||
HexStr: string;
|
||
begin
|
||
if Pos('$',S)=0 then
|
||
HexStr:='$'+ S
|
||
else
|
||
HexStr:=S;
|
||
Result:=StrToInt(HexStr);
|
||
end;
|
||
|
||
function Dec2Numb(N: Longint; Len, Base: Byte): string;
|
||
|
||
var
|
||
C: Integer;
|
||
Number: Longint;
|
||
|
||
begin
|
||
if N=0 then
|
||
Result:='0'
|
||
else
|
||
begin
|
||
Number:=N;
|
||
Result:='';
|
||
while Number>0 do
|
||
begin
|
||
C:=Number mod Base;
|
||
if C>9 then
|
||
C:=C+55
|
||
else
|
||
C:=C+48;
|
||
Result:=Chr(C)+Result;
|
||
Number:=Number div Base;
|
||
end;
|
||
end;
|
||
if (Result<>'') then
|
||
Result:=AddChar('0',Result,Len);
|
||
end;
|
||
|
||
function Numb2Dec(S: string; Base: Byte): Longint;
|
||
|
||
var
|
||
i, P: Longint;
|
||
|
||
begin
|
||
i:=Length(S);
|
||
Result:=0;
|
||
S:=UpperCase(S);
|
||
P:=1;
|
||
while (i>=1) do
|
||
begin
|
||
if (S[i]>'@') then
|
||
Result:=Result+(Ord(S[i])-55)*P
|
||
else
|
||
Result:=Result+(Ord(S[i])-48)*P;
|
||
Dec(i);
|
||
P:=P*Base;
|
||
end;
|
||
end;
|
||
|
||
function RomanToint(const S: string): Longint;
|
||
|
||
const
|
||
RomanChars = ['C','D','I','L','M','V','X'];
|
||
RomanValues : array['C'..'X'] of Word
|
||
= (100,500,0,0,0,0,1,0,0,50,1000,0,0,0,0,0,0,0,0,5,0,10);
|
||
|
||
var
|
||
index, Next: Char;
|
||
i,l: Integer;
|
||
Negative: Boolean;
|
||
|
||
begin
|
||
Result:=0;
|
||
i:=0;
|
||
Negative:=(Length(S)>0) and (S[1]='-');
|
||
if Negative then
|
||
inc(i);
|
||
l:=Length(S);
|
||
while (i<l) do
|
||
begin
|
||
inc(i);
|
||
index:=UpCase(S[i]);
|
||
if index in RomanChars then
|
||
begin
|
||
if Succ(i)<=l then
|
||
Next:=UpCase(S[i+1])
|
||
else
|
||
Next:=#0;
|
||
if (Next in RomanChars) and (RomanValues[index]<RomanValues[Next]) then
|
||
begin
|
||
inc(Result, RomanValues[Next]);
|
||
Dec(Result, RomanValues[index]);
|
||
inc(i);
|
||
end
|
||
else
|
||
inc(Result, RomanValues[index]);
|
||
end
|
||
else
|
||
begin
|
||
Result:=0;
|
||
Exit;
|
||
end;
|
||
end;
|
||
if Negative then
|
||
Result:=-Result;
|
||
end;
|
||
|
||
function intToRoman(Value: Longint): string;
|
||
|
||
const
|
||
Arabics : Array[1..13] of Integer
|
||
= (1,4,5,9,10,40,50,90,100,400,500,900,1000);
|
||
Romans : Array[1..13] of String
|
||
= ('I','IV','V','IX','X','XL','L','XC','C','CD','D','CM','M');
|
||
|
||
var
|
||
i: Integer;
|
||
|
||
begin
|
||
Result:='';
|
||
for i:=13 downto 1 do
|
||
while (Value >= Arabics[i]) do
|
||
begin
|
||
Value:=Value-Arabics[i];
|
||
Result:=Result+Romans[i];
|
||
end;
|
||
end;
|
||
|
||
function intToBin(Value: Longint; Digits, Spaces: Integer): string;
|
||
begin
|
||
Result:='';
|
||
if (Digits>32) then
|
||
Digits:=32;
|
||
while (Digits>0) do
|
||
begin
|
||
if (Digits mod Spaces)=0 then
|
||
Result:=Result+' ';
|
||
Dec(Digits);
|
||
Result:=Result+intToStr((Value shr Digits) and 1);
|
||
end;
|
||
end;
|
||
|
||
function FindPart(const HelpWilds, inputStr: string): Integer;
|
||
var
|
||
i, J: Integer;
|
||
Diff: Integer;
|
||
begin
|
||
Result:=0;
|
||
i:=Pos('?',HelpWilds);
|
||
if (i=0) then
|
||
Result:=Pos(HelpWilds, inputStr)
|
||
else
|
||
begin
|
||
Diff:=Length(inputStr) - Length(HelpWilds);
|
||
for i:=0 to Diff do
|
||
begin
|
||
for J:=1 to Length(HelpWilds) do
|
||
if (inputStr[i + J] = HelpWilds[J]) or (HelpWilds[J] = '?') then
|
||
begin
|
||
if (J=Length(HelpWilds)) then
|
||
begin
|
||
Result:=i+1;
|
||
Exit;
|
||
end;
|
||
end
|
||
else
|
||
Break;
|
||
end;
|
||
end;
|
||
end;
|
||
|
||
function isWild(inputStr, Wilds: string; ignoreCase: Boolean): Boolean;
|
||
|
||
function SearchNext(var Wilds: string): Integer;
|
||
|
||
begin
|
||
Result:=Pos('*', Wilds);
|
||
if Result>0 then
|
||
Wilds:=Copy(Wilds,1,Result - 1);
|
||
end;
|
||
|
||
var
|
||
CWild, CinputWord: Integer; { counter for positions }
|
||
i, LenHelpWilds: Integer;
|
||
MaxinputWord, MaxWilds: Integer; { Length of inputStr and Wilds }
|
||
HelpWilds: string;
|
||
begin
|
||
if Wilds = inputStr then begin
|
||
Result:=True;
|
||
Exit;
|
||
end;
|
||
repeat { delete '**', because '**' = '*' }
|
||
i:=Pos('**', Wilds);
|
||
if i > 0 then
|
||
Wilds:=Copy(Wilds, 1, i - 1) + '*' + Copy(Wilds, i + 2, Maxint);
|
||
until i = 0;
|
||
if Wilds = '*' then begin { for fast end, if Wilds only '*' }
|
||
Result:=True;
|
||
Exit;
|
||
end;
|
||
MaxinputWord:=Length(inputStr);
|
||
MaxWilds:=Length(Wilds);
|
||
if ignoreCase then begin { upcase all letters }
|
||
inputStr:=AnsiUpperCase(inputStr);
|
||
Wilds:=AnsiUpperCase(Wilds);
|
||
end;
|
||
if (MaxWilds = 0) or (MaxinputWord = 0) then begin
|
||
Result:=False;
|
||
Exit;
|
||
end;
|
||
CinputWord:=1;
|
||
CWild:=1;
|
||
Result:=True;
|
||
repeat
|
||
if inputStr[CinputWord] = Wilds[CWild] then begin { equal letters }
|
||
{ goto next letter }
|
||
inc(CWild);
|
||
inc(CinputWord);
|
||
Continue;
|
||
end;
|
||
if Wilds[CWild] = '?' then begin { equal to '?' }
|
||
{ goto next letter }
|
||
inc(CWild);
|
||
inc(CinputWord);
|
||
Continue;
|
||
end;
|
||
if Wilds[CWild] = '*' then begin { handling of '*' }
|
||
HelpWilds:=Copy(Wilds, CWild + 1, MaxWilds);
|
||
i:=SearchNext(HelpWilds);
|
||
LenHelpWilds:=Length(HelpWilds);
|
||
if i = 0 then begin
|
||
{ no '*' in the rest, compare the ends }
|
||
if HelpWilds = '' then Exit; { '*' is the last letter }
|
||
{ check the rest for equal Length and no '?' }
|
||
for i:=0 to LenHelpWilds - 1 do begin
|
||
if (HelpWilds[LenHelpWilds - i] <> inputStr[MaxinputWord - i]) and
|
||
(HelpWilds[LenHelpWilds - i]<> '?') then
|
||
begin
|
||
Result:=False;
|
||
Exit;
|
||
end;
|
||
end;
|
||
Exit;
|
||
end;
|
||
{ handle all to the next '*' }
|
||
inc(CWild, 1 + LenHelpWilds);
|
||
i:=FindPart(HelpWilds, Copy(inputStr, CinputWord, Maxint));
|
||
if i= 0 then begin
|
||
Result:=False;
|
||
Exit;
|
||
end;
|
||
CinputWord:=i + LenHelpWilds;
|
||
Continue;
|
||
end;
|
||
Result:=False;
|
||
Exit;
|
||
until (CinputWord > MaxinputWord) or (CWild > MaxWilds);
|
||
{ no completed evaluation }
|
||
if CinputWord <= MaxinputWord then Result:=False;
|
||
if (CWild <= MaxWilds) and (Wilds[MaxWilds] <> '*') then Result:=False;
|
||
end;
|
||
|
||
function XorString(const Key, Src: ShortString): ShortString;
|
||
var
|
||
i: Integer;
|
||
begin
|
||
Result:=Src;
|
||
if Length(Key) > 0 then
|
||
for i:=1 to Length(Src) do
|
||
Result[i]:=Chr(Byte(Key[1 + ((i - 1) mod Length(Key))]) xor Ord(Src[i]));
|
||
end;
|
||
|
||
function XorEncode(const Key, Source: string): string;
|
||
|
||
var
|
||
i: Integer;
|
||
C: Byte;
|
||
|
||
begin
|
||
Result:='';
|
||
for i:=1 to Length(Source) do
|
||
begin
|
||
if Length(Key) > 0 then
|
||
C:=Byte(Key[1 + ((i - 1) mod Length(Key))]) xor Byte(Source[i])
|
||
else
|
||
C:=Byte(Source[i]);
|
||
Result:=Result+AnsiLowerCase(intToHex(C, 2));
|
||
end;
|
||
end;
|
||
|
||
function XorDecode(const Key, Source: string): string;
|
||
var
|
||
i: Integer;
|
||
C: Char;
|
||
begin
|
||
Result:='';
|
||
for i:=0 to Length(Source) div 2 - 1 do
|
||
begin
|
||
C:=Chr(StrTointDef('$' + Copy(Source, (i * 2) + 1, 2), Ord(' ')));
|
||
if Length(Key) > 0 then
|
||
C:=Chr(Byte(Key[1 + (i mod Length(Key))]) xor Byte(C));
|
||
Result:=Result + C;
|
||
end;
|
||
end;
|
||
|
||
function GetCmdLineArg(const Switch: string; SwitchChars: TSysCharSet): string;
|
||
var
|
||
i: Integer;
|
||
S: string;
|
||
begin
|
||
i:=1;
|
||
Result:='';
|
||
while (Result='') and (i<=ParamCount) do
|
||
begin
|
||
S:=ParamStr(i);
|
||
if (SwitchChars=[]) or ((S[1] in SwitchChars) and (Length(S) > 1)) and
|
||
(AnsiCompareText(Copy(S,2,Length(S)-1),Switch)=0) then
|
||
begin
|
||
inc(i);
|
||
if i<=ParamCount then
|
||
Result:=ParamStr(i);
|
||
end;
|
||
inc(i);
|
||
end;
|
||
end;
|
||
|
||
Function RPosEX(C:char;const S : AnsiString;offs:cardinal):Integer; overload;
|
||
|
||
var I : SizeUInt;
|
||
p,p2: pChar;
|
||
|
||
Begin
|
||
I:=Length(S);
|
||
If (I<>0) and (offs<=i) Then
|
||
begin
|
||
p:=@s[offs];
|
||
p2:=@s[1];
|
||
while (p2<=p) and (p^<>c) do dec(p);
|
||
RPosEx:=(p-p2)+1;
|
||
end
|
||
else
|
||
RPosEX:=0;
|
||
End;
|
||
|
||
Function RPos(c:char;const S : AnsiString):Integer; overload;
|
||
|
||
var I : Integer;
|
||
p,p2: pChar;
|
||
|
||
Begin
|
||
I:=Length(S);
|
||
If I<>0 Then
|
||
begin
|
||
p:=@s[i];
|
||
p2:=@s[1];
|
||
while (p2<=p) and (p^<>c) do dec(p);
|
||
i:=p-p2+1;
|
||
end;
|
||
RPos:=i;
|
||
End;
|
||
|
||
Function RPos (Const Substr : AnsiString; Const Source : AnsiString) : Integer; overload;
|
||
var
|
||
MaxLen,llen : Integer;
|
||
c : char;
|
||
pc,pc2 : pchar;
|
||
begin
|
||
rPos:=0;
|
||
llen:=Length(SubStr);
|
||
maxlen:=length(source);
|
||
if (llen>0) and (maxlen>0) and ( llen<=maxlen) then
|
||
begin
|
||
// i:=maxlen;
|
||
pc:=@source[maxlen];
|
||
pc2:=@source[llen-1];
|
||
c:=substr[llen];
|
||
while pc>=pc2 do
|
||
begin
|
||
if (c=pc^) and
|
||
(CompareChar(Substr[1],pchar(pc-llen+1)^,Length(SubStr))=0) then
|
||
begin
|
||
rPos:=pchar(pc-llen+1)-pchar(@source[1])+1;
|
||
exit;
|
||
end;
|
||
dec(pc);
|
||
end;
|
||
end;
|
||
end;
|
||
|
||
Function RPosex (Const Substr : AnsiString; Const Source : AnsiString;offs:cardinal) : Integer; overload;
|
||
var
|
||
MaxLen,llen : Integer;
|
||
c : char;
|
||
pc,pc2 : pchar;
|
||
begin
|
||
rPosex:=0;
|
||
llen:=Length(SubStr);
|
||
maxlen:=length(source);
|
||
if SizeInt(offs)<maxlen then maxlen:=offs;
|
||
if (llen>0) and (maxlen>0) and ( llen<=maxlen) then
|
||
begin
|
||
// i:=maxlen;
|
||
pc:=@source[maxlen];
|
||
pc2:=@source[llen-1];
|
||
c:=substr[llen];
|
||
while pc>=pc2 do
|
||
begin
|
||
if (c=pc^) and
|
||
(CompareChar(Substr[1],pchar(pc-llen+1)^,Length(SubStr))=0) then
|
||
begin
|
||
rPosex:=pchar(pc-llen+1)-pchar(@source[1])+1;
|
||
exit;
|
||
end;
|
||
dec(pc);
|
||
end;
|
||
end;
|
||
end;
|
||
|
||
// def from delphi.about.com:
|
||
procedure BinToHex(BinValue, HexValue: PChar; BinBufSize: Integer);
|
||
|
||
Const
|
||
HexDigits='0123456789ABCDEF';
|
||
var
|
||
i : longint;
|
||
begin
|
||
for i:=0 to binbufsize-1 do
|
||
begin
|
||
HexValue[0]:=hexdigits[1+((ord(binvalue^) shr 4))];
|
||
HexValue[1]:=hexdigits[1+((ord(binvalue^) and 15))];
|
||
inc(hexvalue,2);
|
||
inc(binvalue);
|
||
end;
|
||
end;
|
||
|
||
|
||
function HexToBin(HexValue, BinValue: PChar; BinBufSize: Integer): Integer;
|
||
// more complex, have to accept more than bintohex
|
||
// A..F 1000001
|
||
// a..f 1100001
|
||
// 0..9 110000
|
||
|
||
var i,j,h,l : integer;
|
||
|
||
begin
|
||
i:=binbufsize;
|
||
while (i>0) do
|
||
begin
|
||
if hexvalue^ IN ['A'..'F','a'..'f'] then
|
||
h:=((ord(hexvalue^)+9) and 15)
|
||
else if hexvalue^ IN ['0'..'9'] then
|
||
h:=((ord(hexvalue^)) and 15)
|
||
else
|
||
break;
|
||
inc(hexvalue);
|
||
if hexvalue^ IN ['A'..'F','a'..'f'] then
|
||
l:=(ord(hexvalue^)+9) and 15
|
||
else if hexvalue^ IN ['0'..'9'] then
|
||
l:=(ord(hexvalue^)) and 15
|
||
else
|
||
break;
|
||
j := l + (h shl 4);
|
||
inc(hexvalue);
|
||
binvalue^:=chr(j);
|
||
inc(binvalue);
|
||
dec(i);
|
||
end;
|
||
result:=binbufsize-i;
|
||
end;
|
||
|
||
function possetex (const c:TSysCharSet;const s : ansistring;count:Integer ):Integer;
|
||
|
||
var i,j:Integer;
|
||
|
||
begin
|
||
if pchar(s)=nil then
|
||
j:=0
|
||
else
|
||
begin
|
||
i:=length(s);
|
||
j:=count;
|
||
if j>i then
|
||
begin
|
||
result:=0;
|
||
exit;
|
||
end;
|
||
while (j<=i) and (not (s[j] in c)) do inc(j);
|
||
if (j>i) then
|
||
j:=0; // not found.
|
||
end;
|
||
result:=j;
|
||
end;
|
||
|
||
function posset (const c:TSysCharSet;const s : ansistring ):Integer;
|
||
|
||
begin
|
||
result:=possetex(c,s,1);
|
||
end;
|
||
|
||
function possetex (const c:string;const s : ansistring;count:Integer ):Integer;
|
||
|
||
var cset : TSysCharSet;
|
||
i : integer;
|
||
begin
|
||
cset:=[];
|
||
if length(c)>0 then
|
||
for i:=1 to length(c) do
|
||
include(cset,c[i]);
|
||
result:=possetex(cset,s,count);
|
||
end;
|
||
|
||
function posset (const c:string;const s : ansistring ):Integer;
|
||
|
||
var cset : TSysCharSet;
|
||
i : integer;
|
||
begin
|
||
cset:=[];
|
||
if length(c)>0 then
|
||
for i:=1 to length(c) do
|
||
include(cset,c[i]);
|
||
result:=possetex(cset,s,1);
|
||
end;
|
||
|
||
|
||
Procedure Removeleadingchars(VAR S : AnsiString; Const CSet:TSysCharset);
|
||
|
||
VAR I,J : Longint;
|
||
|
||
Begin
|
||
I:=Length(S);
|
||
IF (I>0) Then
|
||
Begin
|
||
J:=1;
|
||
While (J<=I) And (S[J] IN CSet) DO
|
||
INC(J);
|
||
IF J>1 Then
|
||
Delete(S,1,J-1);
|
||
End;
|
||
End;
|
||
|
||
|
||
function TrimLeftSet(const S: String;const CSet:TSysCharSet): String;
|
||
|
||
begin
|
||
result:=s;
|
||
removeleadingchars(result,cset);
|
||
end;
|
||
|
||
Procedure RemoveTrailingChars(VAR S : AnsiString;Const CSet:TSysCharset);
|
||
|
||
VAR I,J: LONGINT;
|
||
|
||
Begin
|
||
I:=Length(S);
|
||
IF (I>0) Then
|
||
Begin
|
||
J:=I;
|
||
While (j>0) and (S[J] IN CSet) DO DEC(J);
|
||
IF J<>I Then
|
||
SetLength(S,J);
|
||
End;
|
||
End;
|
||
|
||
Function TrimRightSet(const S: String;const CSet:TSysCharSet): String;
|
||
|
||
begin
|
||
result:=s;
|
||
RemoveTrailingchars(result,cset);
|
||
end;
|
||
|
||
Procedure RemovePadChars(VAR S : AnsiString;Const CSet:TSysCharset);
|
||
|
||
VAR I,J,K: LONGINT;
|
||
|
||
Begin
|
||
I:=Length(S);
|
||
IF (I>0) Then
|
||
Begin
|
||
J:=I;
|
||
While (j>0) and (S[J] IN CSet) DO DEC(J);
|
||
if j=0 Then
|
||
begin
|
||
s:='';
|
||
exit;
|
||
end;
|
||
k:=1;
|
||
While (k<=I) And (S[k] IN CSet) DO
|
||
INC(k);
|
||
IF k>1 Then
|
||
begin
|
||
move(s[k],s[1],j-k+1);
|
||
setlength(s,j-k+1);
|
||
end
|
||
else
|
||
setlength(s,j);
|
||
End;
|
||
End;
|
||
|
||
function TrimSet(const S: String;const CSet:TSysCharSet): String;
|
||
|
||
begin
|
||
result:=s;
|
||
RemovePadChars(result,cset);
|
||
end;
|
||
|
||
|
||
end.
|