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StrUtil.pas
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StrUtil.pas
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{***************************************************************}
{ FIBPlus - component library for direct access to Firebird and }
{ InterBase databases }
{ }
{ FIBPlus is based in part on the product }
{ Free IB Components, written by Gregory H. Deatz for }
{ Hoagland, Longo, Moran, Dunst & Doukas Company. }
{ mailto:[email protected] }
{ }
{ Copyright (c) 1998-2011 Devrace Ltd. }
{ Written by Serge Buzadzhy ([email protected]) }
{ }
{ ------------------------------------------------------------- }
{ FIBPlus home page: http://www.fibplus.com/ }
{ FIBPlus support : http://www.devrace.com/support/ }
{ ------------------------------------------------------------- }
{ }
{ Please see the file License.txt for full license information }
{***************************************************************}
{*******************************************************}
{ }
{ This unit based on StrUtils.pas from RX Library }
{ and SoWldStr.pas from SOHOLIB }
{ }
{*******************************************************}
unit StrUtil;
interface
{$I FIBPlus.inc}
uses
SysUtils, Classes {$IFDEF WINDOWS}, Windows {$ENDIF};
type
TPosition = record
X: Longint;
Y: Longint;
end;
{$IFDEF D_XE5}
TFastStringStream = TStringStream;
{$ELSE}
TFastStringStream = class(TStream)
private
FDataString: string;
FPosition: Integer;
FSize: Integer;
FActualLength: Integer;
FElementSize: Integer;
function GetDataString: string;
protected
procedure SetSize(aNewSize: Longint); override;
procedure Grow(Min: Integer = 0);
function CurMemory: Pointer;
public
constructor Create(const AString: string);
destructor Destroy; override;
function Read(var Buffer; Count: Longint): Longint; override;
function ReadString(Count: Longint): string;
function Seek(Offset: Longint; Origin: Word): Longint; override;
procedure PackData;
function Write(const Buffer; Count: Longint): Longint; override;
procedure WriteString(const AString: string);
property DataString: string read GetDataString;
end;
{$ENDIF}
type
TCharSet = set of AnsiChar;
function Position(AX, AY: Integer): TPosition;
// from RX
function MakeStr(C: Char; N: Integer): string;
function StrAsFloat(S: string): double;
function ToClientDateFmt(D: string; caseFmt: Byte): string;
function ExtractWord(Num: Integer; const Str: string; const WordDelims: TCharSet): string;
// function ExtractLastWord(const Str: String;const WordDelims:TCharSet):String;
function WordCount(const S: string; const WordDelims: TCharSet): Integer;
// from SOHOLIB
function AnsiUpperCaseA(const S: AnsiString): AnsiString;
function CompareStrWA(const S1: string; const S2: AnsiString): Integer;
// function AnsiCompareTextWA(const S1,S2: Pointer): Integer;
function AnsiCompareTextAA(const S1, S2: AnsiString): Integer;
function WildStringCompare(FirstString, SecondString: string): Boolean;
function MaskCompare(const AString, Mask: String): Boolean;
function SQLMaskCompare(const AString, Mask: String): Boolean; {$IFDEF D6+} overload; {$ENDIF}
function SQLMaskCompareAW(const AString: AnsiString; const Mask: string): Boolean;
function SQLMaskCompareAA(const AString, Mask: AnsiString): Boolean; {$IFDEF D6+}
function SQLMaskCompare(const AString, Mask: Widestring): Boolean; overload; {$ENDIF}
// function WldIndexOf(ts:TStrings;const Value:AnsiString;CaseSensitive:Boolean):Integer;
// from Me
function TrimCLRF(const S: String): String;
{ procedure CopyChars(const Src:Ansistring; var Dest:Ansistring;
StartInSrc,StartInDest,Count:Integer
); }
function ReplaceStr(const S, Srch, Replace: string): string;
function ReplaceStrInSubstr(const Source: string; const Srch, Replace: string; BeginPos, EndPos: Integer): string;
function ReplaceCIStr(const S, Srch, Replace: string; Ansi: Boolean = True): string;
function ReplaceStrCIInSubstr(const Source: string; const Srch, Replace: string; BeginPos, EndPos: Integer): string;
function FastUpperCase(const S: string): string; {$IFDEF D2007+} inline; {$ENDIF}
procedure DoUpperCase(var S: string; FirstPos: Integer = 1; LastPos: Integer = 0);
{$IFDEF D2009+}
procedure DoAnsiUpperCase(var S: AnsiString); overload;
{$ENDIF}
procedure DoAnsiUpperCase(var S: string); overload;
procedure DoWideUpperCase(var S: Widestring);
procedure DoUtf8Decode(const S: PAnsiChar; StrLen: Integer; var ws: Widestring); overload;
procedure DoUtf8Decode(const S: AnsiString; var ws: Widestring); overload;
procedure DoUtf8Decode(const S: variant; var ws: Widestring); overload;
function EquelStrings(const S, S1: string; CaseSensitive: Boolean): Boolean;
function iifStr(Condition: Boolean; const Str1, Str2: string): string;
function iifVariant(Condition: Boolean; const Var1, Var2: variant): Variant;
function StrOnMask(const StrIn, MaskIn, MaskOut: string): string;
function StrIsInteger(const Str: string): Boolean;
function FormatIdentifierValue(Dialect: Integer; const Value: string): string; {$IFDEF D2007+} inline; {$ENDIF}
function FormatIdentifier(Dialect: Integer; const Value: string): string; {$IFDEF D2007+} inline; {$ENDIF}
function NormalizeName(Dialect: Integer; const Name: string): string; {$IFDEF D2007+} inline; {$ENDIF}
function EasyFormatIdentifier(Dialect: Integer; const Value: string; DoEasy: Boolean): string; {$IFDEF D2007+} inline;
{$ENDIF}
function EquelNames(CI: Boolean; const Value, Value1: String): Boolean; {$IFDEF D2007+} inline; {$ENDIF}
function NeedQuote(const Name: string): Boolean;
function EasyNeedQuote(const Name: string): Boolean;
function PosCh(aCh: Char; const S: string): Integer;
function PosCh1(aCh: Char; const S: string; StartPos: Integer): Integer; overload;
{$IFDEF D2009+}
function PosCh1(aCh: AnsiChar; const S: AnsiString; StartPos: Integer): Integer; overload;
{$ENDIF}
function PosCI(const Substr, Str: string): Integer; {$IFDEF D2007+} inline;
{$ENDIF}
function PosExt(const Substr, Str: string; BegSub, EndSub: TCharSet): Integer; {$IFDEF D2009+} inline; {$ENDIF}
function PosExtCI(const Substr, Str: string; BegSub, EndSub: TCharSet; AnsiUpper: Boolean = True): Integer;
function PosInSubstr(const Substr, Str: string; BeginPos, EndPos: Integer): Integer;
function PosInRight(const Substr, Str: string; BeginPos: Integer): Integer;
function PosInSubstrCI(const SearchStr, Str: string; BeginPos, EndPos: Integer): Integer;
function PosInSubstrExt(const SearchStr: string; Str: string; BeginPos, EndPos: Integer;
BegSub, EndSub: TCharSet): Integer;
function PosInSubstrCIExt(const SearchStr, Str: string; BeginPos, EndPos: Integer; BegSub, EndSub: TCharSet): Integer;
function FirstPos(Search: array of Char; const InString: string): Integer; overload;
{$IFDEF D2009+}
function FirstPos(Search: array of AnsiChar; const InString: AnsiString): Integer; overload;
{$ENDIF}
function LastChar(const Str: string): Char;
function QuotedStr(const S: string): string;
function CutQuote(const S: String): string;
function StringInArray(const S: string; const a: array of string): Boolean;
function IsBlank(const Str: string): Boolean;
function IsBeginPartStr(const PartStr, TargetStr: AnsiString): Boolean;
{$IFDEF D6+} overload; {$ENDIF}
{$IFDEF D2009+}
function IsBeginPartStrWA(const PartStr: string; const TargetStr: AnsiString): Boolean;
{$ENDIF}
function IsBeginPartStrVarA(const PartStr: variant; const TargetStr: AnsiString): Boolean;
{$IFDEF D6+}
function IsBeginPartStr(const PartStr, TargetStr: Widestring): Boolean; overload;
{$ENDIF}
// Ansistring procedures
procedure DoLowerCase(var Str: string); overload;
{$IFDEF D2009+}
procedure DoLowerCase(var Str: AnsiString); overload;
{$ENDIF}
procedure DoTrim(var Str: string);
// procedure DoTrimTo(const Source:Ansistring ;var Dest:Ansistring);
function VarTrimRight(const Str: variant): variant;
procedure DoTrimRight(var Str: string); overload;
procedure DoTrimRight(var Str: Widestring); overload;
{$IFDEF D2009+}
procedure DoTrimRight(var Str: AnsiString); overload;
{$ENDIF}
procedure DoCopy(const Source: string; var Dest: string; Index, Count: Integer); overload;
{$IFDEF D2009+}
procedure DoCopy(const Source: AnsiString; var Dest: AnsiString; Index, Count: Integer); overload;
{$ENDIF}
// function StrTrimmedLen(Str:PChar):Integer;
function FastTrim(const S: string): string;
function FastCopy(const S: String; Index: Integer; Count: Integer): String; overload;
{$IFDEF D2009+}
function FastCopy(const S: AnsiString; Index: Integer; Count: Integer): AnsiString; overload;
{$ENDIF}
// TStringList functions
procedure SLDifference(ASL, BSL: TStringList; ResultSL: TStrings);
function EmptyStrings(SL: TStrings): Boolean;
procedure DeleteEmptyStr(Src: TStrings);
function NonAnsiSortCompareStrings(SL: TStringList; Index1, Index2: Integer): Integer;
function FindInDiapazon(SL: TStringList; const S: String; const StartIndex, EndIndex: Integer; AnsiCompare: Boolean;
var Index: Integer): Boolean;
function NonAnsiIndexOf(SL: TStringList; const S: string): Integer; // Non Ansi
procedure GetNameAndValue(const S: string; var Name, Value: AnsiString);
function StrToDateFmt(const ADate, Fmt: string): TDateTime;
function DateToSQLStr(const ADate: TDateTime): string;
function ValueFromStr(const Str: string): string;
{$IFNDEF D6+}
function WideUpperCase(const S: Widestring): Widestring;
{$ENDIF}
function Q_StrLen(P: PAnsiChar): Cardinal;
function IsOldParamName(const ParamName: string): Boolean;
function IsNewParamName(const ParamName: string): Boolean;
function IsMasParamName(const ParamName: string): Boolean;
function GUIDAsString(const AGUID: TGUID): AnsiString; // fast GUIDToString
procedure GUIDAsStringToPChar(const AGUID: PGUID; Dest: PAnsiChar);
function StringAsGUID(const AStr: AnsiString): TGUID;
function CompareStrAndGuid(GUID: PGUID; const Str: AnsiString): Integer;
function CompareStrAndGuidP(GUID: PGUID; const Str: PAnsiString): Integer;
function IsEqualGUIDs(const guid1, guid2: TGUID): Boolean;
{ Thanks to Anton Tril }
function IsNumericStr(const Str: string): Boolean;
function IsEmptyStr(const Str: string): Boolean;
function CompareStrTrimmed(const Str1, Str2: PChar; Len: Integer): Integer;
{$IFNDEF D2009+}
function CharInSet(C: AnsiChar; const CharSet: TSysCharSet): Boolean;
{$ENDIF}
implementation
uses SysConst
{$IFNDEF D6+}
, StdFuncs
{$ELSE}
, Variants
{$ENDIF}
;
{$IFNDEF D2009+}
function CharInSet(C: AnsiChar; const CharSet: TSysCharSet): Boolean;
begin
Result := C in CharSet;
end;
{$ENDIF}
{$IFNDEF D6+}
type
IntegerArray = array [0 .. $EFFFFFF] of Integer;
PIntegerArray = ^IntegerArray;
{$ENDIF}
function IsNumericStr(const Str: string): Boolean;
var
pStr, pStrEnd: PChar;
begin
if Length(Str) = 0 then
begin
Result := False;
Exit;
end;
pStr := Pointer(Str);
pStrEnd := Pointer(Str);
Inc(pStrEnd, Length(Str));
while (pStr < pStrEnd) and CharInSet(pStr^, ['+', '-']) do
Inc(pStr);
if pStr = pStrEnd then
begin
Result := False;
Exit;
end;
while pStr < pStrEnd do
begin
if CharInSet(pStr^, ['0' .. '9', '.']) then
Inc(pStr)
else
begin
Result := False;
Exit;
end;
end;
Result := True;
end;
function IsEmptyStr(const Str: string): Boolean;
var
pStr, pStrEnd: PChar;
begin
if Length(Str) = 0 then
begin
Result := True;
Exit;
end;
pStr := Pointer(Str);
pStrEnd := Pointer(Str);
Inc(pStrEnd, Length(Str));
while (pStr < pStrEnd) do
begin
if pStr^ > ' ' then
begin
Result := False;
Exit;
end;
Inc(pStr);
end;
Result := True;
end;
function CompareStrTrimmed(const Str1, Str2: PChar; Len: Integer): Integer;
var
i: Integer;
begin
// Str2 must be trimmed
while Str2[Len - 1] < #33 do
Dec(Len);
i := 0;
while i < Len do
begin
if Str1[i] > Str2[i] then
begin
Result := 1;
Exit;
end
else if Str1[i] < Str2[i] then
begin
Result := -1;
Exit;
end
else
Inc(i)
end;
Result := 0;
end;
function CompareStrAndGuid(GUID: PGUID; const Str: AnsiString): Integer;
begin
Result := CompareStr(Str, GUIDAsString(GUID^))
end;
function CompareStrAndGuidP(GUID: PGUID; const Str: PAnsiString): Integer;
begin
Result := CompareStr(Str^, GUIDAsString(GUID^))
end;
function CompareStrWA(const S1: string; const S2: AnsiString): Integer;
begin
// Result :=CompareStr(S1,S2)
if S1 <> S2 then
Result := 1
else
Result := 0
end;
function AnsiCompareTextAA(const S1, S2: AnsiString): Integer;
begin
Result := AnsiCompareText(S1, S2)
end;
function AnsiUpperCaseA(const S: AnsiString): AnsiString;
begin
Result := AnsiUpperCase(S)
end;
function IsEqualGUIDs(const guid1, guid2: TGUID): Boolean;
var
a, b: PIntegerArray;
begin
a := PIntegerArray(@guid1);
b := PIntegerArray(@guid2);
Result := (a^[0] = b^[0]) and (a^[1] = b^[1]) and (a^[2] = b^[2]) and (a^[3] = b^[3]);
end;
type
TGUIDBytes = record
F0, F1, F2, F3, F4, F5, F6, F7, F8, F9, FA, FB, FC, FD, FE, FF: byte;
end;
{$R+}
{$IFNDEF D6+}
resourcestring
SInvalidGUID = '''%s'' is not a valid GUID value';
{$ENDIF}
const
Int2HexHash: Array [0 .. 255] of Word = ($3030, $3130, $3230, $3330, $3430, $3530, $3630, $3730, $3830, $3930, $4130,
$4230, $4330, $4430, $4530, $4630, $3031, $3131, $3231, $3331, $3431, $3531, $3631, $3731, $3831, $3931, $4131,
$4231, $4331, $4431, $4531, $4631, $3032, $3132, $3232, $3332, $3432, $3532, $3632, $3732, $3832, $3932, $4132,
$4232, $4332, $4432, $4532, $4632, $3033, $3133, $3233, $3333, $3433, $3533, $3633, $3733, $3833, $3933, $4133,
$4233, $4333, $4433, $4533, $4633, $3034, $3134, $3234, $3334, $3434, $3534, $3634, $3734, $3834, $3934, $4134,
$4234, $4334, $4434, $4534, $4634, $3035, $3135, $3235, $3335, $3435, $3535, $3635, $3735, $3835, $3935, $4135,
$4235, $4335, $4435, $4535, $4635, $3036, $3136, $3236, $3336, $3436, $3536, $3636, $3736, $3836, $3936, $4136,
$4236, $4336, $4436, $4536, $4636, $3037, $3137, $3237, $3337, $3437, $3537, $3637, $3737, $3837, $3937, $4137,
$4237, $4337, $4437, $4537, $4637, $3038, $3138, $3238, $3338, $3438, $3538, $3638, $3738, $3838, $3938, $4138,
$4238, $4338, $4438, $4538, $4638, $3039, $3139, $3239, $3339, $3439, $3539, $3639, $3739, $3839, $3939, $4139,
$4239, $4339, $4439, $4539, $4639, $3041, $3141, $3241, $3341, $3441, $3541, $3641, $3741, $3841, $3941, $4141,
$4241, $4341, $4441, $4541, $4641, $3042, $3142, $3242, $3342, $3442, $3542, $3642, $3742, $3842, $3942, $4142,
$4242, $4342, $4442, $4542, $4642, $3043, $3143, $3243, $3343, $3443, $3543, $3643, $3743, $3843, $3943, $4143,
$4243, $4343, $4443, $4543, $4643, $3044, $3144, $3244, $3344, $3444, $3544, $3644, $3744, $3844, $3944, $4144,
$4244, $4344, $4444, $4544, $4644, $3045, $3145, $3245, $3345, $3445, $3545, $3645, $3745, $3845, $3945, $4145,
$4245, $4345, $4445, $4545, $4645, $3046, $3146, $3246, $3346, $3446, $3546, $3646, $3746, $3846, $3946, $4146,
$4246, $4346, $4446, $4546, $4646);
function StringAsGUID(const AStr: AnsiString): TGUID;
const
Hex2IntHash: Array [0 .. 70] of byte = (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, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0, 0,
10, 11, 12, 13, 14, 15);
begin
{ Thanks to Anton Tril }
if (Length(AStr) <> 38) or (AStr[1] <> '{') or (AStr[38] <> '}') or (AStr[10] <> '-') or (AStr[15] <> '-') or
(AStr[20] <> '-') or (AStr[25] <> '-') then
begin
raise EConvertError.CreateResFmt(PResStringRec(@SInvalidGUID), [AStr]);
end;
try
TGUIDBytes(Result).F3 := Hex2IntHash[byte(AStr[2])] shl 4 or Hex2IntHash[byte(AStr[3])];
TGUIDBytes(Result).F2 := Hex2IntHash[byte(AStr[4])] shl 4 or Hex2IntHash[byte(AStr[5])];
TGUIDBytes(Result).F1 := Hex2IntHash[byte(AStr[6])] shl 4 or Hex2IntHash[byte(AStr[7])];
TGUIDBytes(Result).F0 := Hex2IntHash[byte(AStr[8])] shl 4 or Hex2IntHash[byte(AStr[9])];
// -
TGUIDBytes(Result).F5 := Hex2IntHash[byte(AStr[11])] shl 4 or Hex2IntHash[byte(AStr[12])];
TGUIDBytes(Result).F4 := Hex2IntHash[byte(AStr[13])] shl 4 or Hex2IntHash[byte(AStr[14])];
// -
TGUIDBytes(Result).F7 := Hex2IntHash[byte(AStr[16])] shl 4 or Hex2IntHash[byte(AStr[17])];
TGUIDBytes(Result).F6 := Hex2IntHash[byte(AStr[18])] shl 4 or Hex2IntHash[byte(AStr[19])];
// -
TGUIDBytes(Result).F8 := Hex2IntHash[byte(AStr[21])] shl 4 or Hex2IntHash[byte(AStr[22])];
TGUIDBytes(Result).F9 := Hex2IntHash[byte(AStr[23])] shl 4 or Hex2IntHash[byte(AStr[24])];
// -
TGUIDBytes(Result).FA := Hex2IntHash[byte(AStr[26])] shl 4 or Hex2IntHash[byte(AStr[27])];
TGUIDBytes(Result).FB := Hex2IntHash[byte(AStr[28])] shl 4 or Hex2IntHash[byte(AStr[29])];
TGUIDBytes(Result).FC := Hex2IntHash[byte(AStr[30])] shl 4 or Hex2IntHash[byte(AStr[31])];
TGUIDBytes(Result).FD := Hex2IntHash[byte(AStr[32])] shl 4 or Hex2IntHash[byte(AStr[33])];
TGUIDBytes(Result).FE := Hex2IntHash[byte(AStr[34])] shl 4 or Hex2IntHash[byte(AStr[35])];
TGUIDBytes(Result).FF := Hex2IntHash[byte(AStr[36])] shl 4 or Hex2IntHash[byte(AStr[37])];
except
raise EConvertError.CreateResFmt(PResStringRec(@SInvalidGUID), [AStr]);
end;
end;
{$R-}
procedure GUIDAsStringToPChar(const AGUID: PGUID; Dest: PAnsiChar);
var
P: Cardinal;
begin
P := Cardinal(Dest);
PByte(P)^ := Ord('{');
Inc(P);
PWord(P)^ := Int2HexHash[TGUIDBytes(AGUID^).F3];
Inc(P, 2);
PWord(P)^ := Int2HexHash[TGUIDBytes(AGUID^).F2];
Inc(P, 2);
PWord(P)^ := Int2HexHash[TGUIDBytes(AGUID^).F1];
Inc(P, 2);
PWord(P)^ := Int2HexHash[TGUIDBytes(AGUID^).F0];
Inc(P, 2);
PByte(P)^ := Ord('-');
Inc(P);
PWord(P)^ := Int2HexHash[TGUIDBytes(AGUID^).F5];
Inc(P, 2);
PWord(P)^ := Int2HexHash[TGUIDBytes(AGUID^).F4];
Inc(P, 2);
PByte(P)^ := Ord('-');
Inc(P);
PWord(P)^ := Int2HexHash[TGUIDBytes(AGUID^).F7];
Inc(P, 2);
PWord(P)^ := Int2HexHash[TGUIDBytes(AGUID^).F6];
Inc(P, 2);
PByte(P)^ := Ord('-');
Inc(P);
PWord(P)^ := Int2HexHash[TGUIDBytes(AGUID^).F8];
Inc(P, 2);
PWord(P)^ := Int2HexHash[TGUIDBytes(AGUID^).F9];
Inc(P, 2);
PByte(P)^ := Ord('-');
Inc(P);
PWord(P)^ := Int2HexHash[TGUIDBytes(AGUID^).FA];
Inc(P, 2);
PWord(P)^ := Int2HexHash[TGUIDBytes(AGUID^).FB];
Inc(P, 2);
PWord(P)^ := Int2HexHash[TGUIDBytes(AGUID^).FC];
Inc(P, 2);
PWord(P)^ := Int2HexHash[TGUIDBytes(AGUID^).FD];
Inc(P, 2);
PWord(P)^ := Int2HexHash[TGUIDBytes(AGUID^).FE];
Inc(P, 2);
PWord(P)^ := Int2HexHash[TGUIDBytes(AGUID^).FF];
Inc(P, 2);
PByte(P)^ := Ord('}');
end;
function GUIDAsString(const AGUID: TGUID): AnsiString;
begin
SetLength(Result, 38);
GUIDAsStringToPChar(@AGUID, PAnsiChar(Result))
end;
function IsOldParamName(const ParamName: string): Boolean;
begin
Result := (Length(ParamName) > 4) and CharInSet(ParamName[1], ['O', 'o']) and (ParamName[4] = '_') and
CharInSet(ParamName[2], ['L', 'l']) and CharInSet(ParamName[3], ['D', 'd'])
end;
function IsNewParamName(const ParamName: string): Boolean;
begin
Result := (Length(ParamName) > 4) and CharInSet(ParamName[1], ['N', 'n']) and (ParamName[4] = '_') and
CharInSet(ParamName[2], ['E', 'e']) and CharInSet(ParamName[3], ['W', 'w'])
end;
function IsMasParamName(const ParamName: string): Boolean;
begin
Result := (Length(ParamName) > 4) and CharInSet(ParamName[1], ['M', 'm']) and (ParamName[4] = '_') and
CharInSet(ParamName[2], ['A', 'a']) and CharInSet(ParamName[3], ['S', 's'])
end;
function StrToDateFmt(const ADate, Fmt: string): TDateTime;
var
OldShortDateFormat: string;
begin
{$IFDEF D_XE3}with FormatSettings do {$ENDIF}
begin
OldShortDateFormat := {$IFDEF D_XE3}FormatSettings.{$ENDIF}ShortDateFormat;
try
ShortDateFormat := Fmt;
Result := StrToDateTime(ADate);
finally
ShortDateFormat := OldShortDateFormat;
end
end;
end;
function DateToSQLStr(const ADate: TDateTime): string;
var
Year, Month, Day: Word;
begin
DecodeDate(ADate, Year, Month, Day);
Result := IntToStr(Day) + '.' + IntToStr(Month) + '.' + IntToStr(Year)
end;
function ValueFromStr(const Str: string): string;
var
P: Integer;
begin
P := PosCh('=', Str);
if P = 0 then
Result := ''
else
Result := Copy(Str, P + 1, MaxInt)
end;
{$IFDEF D6+}
function IsBeginPartStr(const PartStr, TargetStr: Widestring): Boolean;
var
i, L: Integer;
begin
L := Length(PartStr);
if L = 0 then
Result := True
else if L > Length(TargetStr) then
Result := False
else
begin
for i := 1 to L do
if PartStr[i] <> TargetStr[i] then
begin
Result := False;
Exit;
end;
Result := True;
end;
end;
{$ENDIF}
{$IFDEF D2009+}
function IsBeginPartStrWA(const PartStr: string; const TargetStr: AnsiString): Boolean;
var
i, L: Integer;
wTargStr: Widestring;
begin
L := Length(PartStr);
if L = 0 then
Result := True
else if L > Length(TargetStr) then
Result := False
else
begin
wTargStr := TargetStr;
for i := 1 to L do
if PartStr[i] <> wTargStr[i] then
begin
Result := False;
Exit;
end;
Result := True;
end;
end;
{$ENDIF}
function IsBeginPartStrVarA(const PartStr: variant; const TargetStr: AnsiString): Boolean;
begin
{$IFDEF D2009+}
Result := IsBeginPartStrWA(PartStr, TargetStr)
{$ELSE}
Result := IsBeginPartStr(PartStr, TargetStr)
{$ENDIF}
end;
function IsBeginPartStr(const PartStr, TargetStr: AnsiString): Boolean;
var
i, L: Integer;
begin
L := Length(PartStr);
if L = 0 then
Result := True
else if L > Length(TargetStr) then
Result := False
else
begin
for i := 1 to L do
if PartStr[i] <> TargetStr[i] then
begin
Result := False;
Exit;
end;
Result := True;
end;
end;
function IsBlank(const Str: string): Boolean;
var
L: Integer;
begin
L := Length(Str);
while (L > 0) and (Str[L] <= ' ') do
Dec(L);
Result := L = 0;
end;
{$IFDEF D2009+}
procedure DoLowerCase(var Str: AnsiString);
var
i: Integer;
begin
for i := Length(Str) downto 1 do
if (Str[i] >= 'A') and (Str[i] <= 'Z') then
Inc(Str[i], 32)
end;
{$ENDIF}
procedure DoLowerCase(var Str: string);
var
i: Integer;
begin
for i := Length(Str) downto 1 do
if (Str[i] >= 'A') and (Str[i] <= 'Z') then
Inc(Str[i], 32)
end;
procedure TrimPositions(const Str: string; var Left, Right: Integer);
begin
Right := Length(Str);
if Right = 0 then
begin
Left := 0;
Exit;
end;
Left := 1;
while (Right > 0) and (Str[Right] <= ' ') do
Dec(Right);
while (Left <= Right) and (Str[Left] <= ' ') do
Inc(Left);
end;
procedure DoTrim(var Str: string);
var
Left, Right: Integer;
begin
TrimPositions(Str, Left, Right);
if Right < Length(Str) then
SetLength(Str, Right);
if Left > 1 then
Delete(Str, 1, Left - 1);
end;
function VarTrimRight(const Str: variant): Variant;
var
i: Integer;
ws: Widestring;
S: string;
begin
case VarType(Str) of
varOleStr:
begin
ws := Str;
i := Length(ws);
if (i > 0) and (ws[i] <> ' ') then
begin
Result := ws;
Exit;
end;
while (i > 0) and (ws[i] = ' ') do
Dec(i);
Result := Copy(ws, 1, i);
end;
else
begin
S := Str;
i := Length(S);
if (i > 0) and (S[i] <> ' ') then
begin
Result := S;
Exit;
end;
while (i > 0) and (S[i] = ' ') do
Dec(i);
Result := Copy(S, 1, i);
end
end;
end;
procedure DoTrimRight(var Str: string);
var
i: Integer;
begin
i := Length(Str);
while (i > 0) and (Str[i] = ' ') do
Dec(i);
if i < Length(Str) then
SetLength(Str, i)
end;
procedure DoTrimRight(var Str: Widestring);
var
i: Integer;
begin
i := Length(Str);
while (i > 0) and (Str[i] = ' ') do
Dec(i);
if i < Length(Str) then
SetLength(Str, i)
end;
{$IFDEF D2009+}
procedure DoTrimRight(var Str: AnsiString);
var
i: Integer;
P, p1: PAnsiChar;
begin
{ I := Length(Str);
while (I > 0) and (Str[I] <= ' ') do Dec(I);
if I< Length(Str) then SetLength(Str,I) }
i := Length(Str);
if i > 0 then
begin
P := PAnsiChar(Pointer(Str));
p1 := P;
Inc(p1, i - 1);
if p1^ = ' ' then
begin
repeat
Dec(p1);
if p1^ <> ' ' then
begin
SetLength(Str, p1 - P + 1);
Exit
end;
until (p1 = P);
Str := '';
end
end
end;
{$ENDIF}
{$IFDEF D2009+}
procedure DoCopy(const Source: AnsiString; var Dest: AnsiString; Index, Count: Integer);
var
L: Integer;
begin
L := Length(Source) - Index + 1;
if L > Count then
L := Count;
if L <= 0 then
Dest := ''
else
begin
if Length(Dest) <> L then
SetLength(Dest, L);
Move(Source[Index], Dest[1], L * SizeOf(AnsiChar));
end;
end;
{$ENDIF}
procedure DoCopy(const Source: string; var Dest: string; Index, Count: Integer);
var
L: Integer;
begin
L := Length(Source) - Index + 1;
if L > Count then
L := Count;
if L <= 0 then
Dest := ''
else
begin
if Length(Dest) <> L then
SetLength(Dest, L);
Move(Source[Index], Dest[1], L * SizeOf(Char));
end;
end;
function FastTrim(const S: string): string;
var
i, L: Integer;
begin
L := Length(S);
i := 1;
while (i <= L) and (S[i] <= ' ') do
Inc(i);
if i > L then
Result := ''
else
begin
while S[L] <= ' ' do
Dec(L);
if (i > 1) or (L < Length(S)) then
begin
SetLength(Result, L - i + 1);
Move(S[i], Result[1], (L - i + 1) * SizeOf(Char));
end
else
Result := S
end;
end;
function FastCopy(const S: string; Index: Integer; Count: Integer): string;
var
L: Integer;
begin
L := Length(S);
if (Index > L) or (Count <= 0) then
Result := ''
else
begin
if (Count - L + Index) > 0 then
Count := L - Index + 1;
SetLength(Result, Count);
Move(S[Index], Result[1], Count * SizeOf(Char));
end;
end;
{$IFDEF D2009+}
function FastCopy(const S: AnsiString; Index: Integer; Count: Integer): AnsiString;
var
L: Integer;
begin
L := Length(S);
if (Index > L) or (Count <= 0) then
Result := ''
else
begin
if (Count - L + Index) > 0 then
Count := L - Index + 1;
SetLength(Result, Count);
Move(S[Index], Result[1], Count * SizeOf(AnsiChar));
end;
end;
{$ENDIF}
function StringInArray(const S: string; const a: array of String): Boolean;
var
i: Integer;
begin
Result := False;
for i := Low(a) to High(a) do
begin
Result := EquelNames(False, S, a[i]);
if Result then
Exit;
end;
end;
function FormatIdentifierValue(Dialect: Integer; const Value: string): string;
begin
if Dialect = 1 then
Result := FastUpperCase(FastTrim(Value))
else
Result := Value;
end;
function EquelNames(CI: Boolean; const Value, Value1: string): Boolean;
begin
if Length(Value) <> Length(Value1) then
Result := False
else
begin
if CI then
Result := AnsiCompareText(Value, Value1) = 0
else
Result := Value = Value1
end;
end;
function EasyFormatIdentifier(Dialect: Integer; const Value: string; DoEasy: Boolean): string;
var
b: Boolean;
begin
if Dialect = 1 then
Result := UpperCase(FastTrim(Value))
else
begin
if DoEasy then
b := EasyNeedQuote(Value)
else
b := NeedQuote(Value);
if b then
if (Length(Value) > 0) and (Value[1] <> '"') then
Result := '"' + Value + '"'
else
Result := Value
else if (Length(Value) > 0) and (Value[1] <> '"') then
Result := UpperCase(Value)
else
Result := Value
end;
end;
function FormatIdentifier(Dialect: Integer; const Value: string): string;
begin
if Dialect = 1 then
Result := UpperCase(Trim(Value))
else if NeedQuote(Value) then
Result := '"' + Value + '"'
else
Result := Value
end;
function NormalizeName(Dialect: Integer; const Name: string): string;
begin
if Dialect < 3 then
Result := UpperCase(Name)
else if (Length(Name) > 0) and (Name[1] = '"') then
Result := Name
else
Result := UpperCase(Name)
end;
{$IFDEF CPUX86}
function Q_StrScan(const S: AnsiString; Ch: AnsiChar; StartPos: Integer): Integer;
asm
TEST EAX,EAX
JE @@qt
PUSH EDI
MOV EDI,EAX
LEA EAX,[ECX-1]
MOV ECX,[EDI-4]
SUB ECX,EAX
JLE @@m1
PUSH EDI
ADD EDI,EAX
MOV EAX,EDX
POP EDX
REPNE SCASB
JNE @@m1
MOV EAX,EDI
SUB EAX,EDX
POP EDI