mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-11-04 09:02:22 +01:00
+ Added some RxStrUtils functions for Rx compatibility
This commit is contained in:
michael
parent
e9f1e6f0d3
commit
072f6e4ec6
@ -124,6 +124,52 @@ type
|
||||
Const
|
||||
AnsiResemblesProc: TCompareTextProc = @SoundexProc;
|
||||
|
||||
{ ---------------------------------------------------------------------
|
||||
Other functions, based on RxStrUtils.
|
||||
---------------------------------------------------------------------}
|
||||
|
||||
function IsEmptyStr(const S: string; const EmptyChars: TSysCharSet): Boolean;
|
||||
function DelSpace(const S: string): string;
|
||||
function DelChars(const S: string; Chr: Char): string;
|
||||
function DelSpace1(const S: string): string;
|
||||
function Tab2Space(const S: string; Numb: Byte): string;
|
||||
function NPos(const C: string; S: string; N: Integer): Integer;
|
||||
function AddChar(C: Char; const S: string; N: Integer): string;
|
||||
function AddCharR(C: Char; const S: string; N: Integer): string;
|
||||
function PadLeft(const S: string; N: Integer): string;
|
||||
function PadRight(const S: string; N: Integer): string;
|
||||
function PadCenter(const S: string; Len: Integer): string;
|
||||
function Copy2Symb(const S: string; Symb: Char): string;
|
||||
function Copy2SymbDel(var S: string; Symb: Char): string;
|
||||
function Copy2Space(const S: string): string;
|
||||
function Copy2SpaceDel(var S: string): string;
|
||||
function AnsiProperCase(const S: string; const WordDelims: TSysCharSet): string;
|
||||
function WordCount(const S: string; const WordDelims: TSysCharSet): Integer;
|
||||
function WordPosition(const N: Integer; const S: string; const WordDelims: TSysCharSet): Integer;
|
||||
function ExtractWord(N: Integer; const S: string; const WordDelims: TSysCharSet): string;
|
||||
function ExtractWordPos(N: Integer; const S: string; const WordDelims: TSysCharSet; var Pos: Integer): string;
|
||||
function ExtractDelimited(N: Integer; const S: string; const Delims: TSysCharSet): string;
|
||||
function ExtractSubstr(const S: string; var Pos: Integer; const Delims: TSysCharSet): string;
|
||||
function IsWordPresent(const W, S: string; const WordDelims: TSysCharSet): Boolean;
|
||||
function FindPart(const HelpWilds, InputStr: string): Integer;
|
||||
function IsWild(InputStr, Wilds: string; IgnoreCase: Boolean): Boolean;
|
||||
function XorString(const Key, Src: ShortString): ShortString;
|
||||
function XorEncode(const Key, Source: string): string;
|
||||
function XorDecode(const Key, Source: string): string;
|
||||
function GetCmdLineArg(const Switch: string; SwitchChars: TSysCharSet): string;
|
||||
function Numb2USA(const S: string): string;
|
||||
function Hex2Dec(const S: string): Longint;
|
||||
function Dec2Numb(N: Longint; Len, Base: Byte): string;
|
||||
function Numb2Dec(S: string; Base: Byte): Longint;
|
||||
function IntToBin(Value: Longint; Digits, Spaces: Integer): string;
|
||||
function IntToRoman(Value: Longint): string;
|
||||
function RomanToInt(const S: string): Longint;
|
||||
|
||||
const
|
||||
DigitChars = ['0'..'9'];
|
||||
Brackets = ['(',')','[',']','{','}'];
|
||||
StdWordDelims = [#0..' ',',','.',';','/','\',':','''','"','`'] + Brackets;
|
||||
|
||||
implementation
|
||||
|
||||
{ ---------------------------------------------------------------------
|
||||
@ -684,11 +730,685 @@ begin
|
||||
NotYetImplemented(' SoundexProc');
|
||||
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;
|
||||
begin
|
||||
Result:=AddCharR(' ',S,N);
|
||||
end;
|
||||
|
||||
function PadLeft(const S: string; N: Integer): string;
|
||||
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;
|
||||
|
||||
begin
|
||||
Result:=Copy2Symb(S,Symb);
|
||||
S:=TrimRight(Copy(S,Length(Result)+1,Length(S)));
|
||||
end;
|
||||
|
||||
function Copy2Space(const S: string): string;
|
||||
begin
|
||||
Result:=Copy2Symb(S,' ');
|
||||
end;
|
||||
|
||||
function Copy2SpaceDel(var S: string): string;
|
||||
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;
|
||||
|
||||
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[Len]:=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
|
||||
Result:=ExtractWord(i,S,WordDelims)=W;
|
||||
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:=StrTointDef(HexStr,0);
|
||||
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
|
||||
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;
|
||||
|
||||
end.
|
||||
|
||||
{
|
||||
$Log$
|
||||
Revision 1.7 2004-07-01 15:42:18 peter
|
||||
Revision 1.8 2004-07-13 18:42:39 michael
|
||||
+ Added some RxStrUtils functions for Rx compatibility
|
||||
|
||||
Revision 1.7 2004/07/01 15:42:18 peter
|
||||
* fix 1.0.x compile
|
||||
|
||||
Revision 1.6 2004/06/29 19:37:17 marco
|
||||
|
||||
Loading…
Reference in New Issue
Block a user