+ Implemented all functions

This commit is contained in:
michael 2004-07-21 20:37:03 +00:00
parent d03877c186
commit ebead1b5ee

View File

@ -54,16 +54,16 @@ Function ReverseString(const AText: string): string;
Function AnsiReverseString(const AText: AnsiString): AnsiString;
Function StuffString(const AText: string; AStart, ALength: Cardinal; const ASubText: string): string;
Function RandomFrom(const AValues: array of string): string; overload;
Function IfThen(AValue: Boolean; const ATrue: string; AFalse: string): string;
Function IfThen(AValue: Boolean; const ATrue: string; AFalse: string): string;
Function IfThen(AValue: Boolean; const ATrue: string): string; // ; AFalse: string = ''
{ ---------------------------------------------------------------------
VB emulations.
---------------------------------------------------------------------}
Function LeftStr(const AText: AnsiString; const ACount: Integer): AnsiString;
Function RightStr(const AText: AnsiString; const ACount: Integer): AnsiString;
Function MidStr(const AText: AnsiString; const AStart, ACount: Integer): AnsiString;
Function LeftStr(const AText: AnsiString; const ACount: Integer): AnsiString;
Function RightStr(const AText: AnsiString; const ACount: Integer): AnsiString;
Function MidStr(const AText: AnsiString; const AStart, ACount: Integer): AnsiString;
Function RightBStr(const AText: AnsiString; const AByteCount: Integer): AnsiString;
Function MidBStr(const AText: AnsiString; const AByteStart, AByteCount: Integer): AnsiString;
Function AnsiLeftStr(const AText: AnsiString; const ACount: Integer): AnsiString;
@ -73,7 +73,7 @@ Function AnsiMidStr(const AText: AnsiString; const AStart, ACount: Integer): Ans
Function LeftBStr(const AText: AnsiString; const AByteCount: Integer): AnsiString;
Function LeftStr(const AText: WideString; const ACount: Integer): WideString;
Function RightStr(const AText: WideString; const ACount: Integer): WideString;
Function MidStr(const AText: WideString; const AStart, ACount: Integer): WideString;
Function MidStr(const AText: WideString; const AStart, ACount: Integer): WideString;
{$endif}
{ ---------------------------------------------------------------------
@ -85,8 +85,9 @@ const
WordDelimiters: set of Char = [#0..#255] - ['a'..'z','A'..'Z','1'..'9','0'];
type
TStringSeachOption = (soDown, soMatchCase, soWholeWord);
TStringSearchOptions = set of TStringSeachOption;
TStringSearchOption = (soDown, soMatchCase, soWholeWord);
TStringSearchOptions = set of TStringSearchOption;
TStringSeachOption = TStringSearchOption;
Function SearchBuf(Buf: PChar; BufLen: Integer; SelStart, SelLength: Integer; SearchString: String; Options: TStringSearchOptions): PChar;
Function SearchBuf(Buf: PChar; BufLen: Integer; SelStart, SelLength: Integer; SearchString: String): PChar; // ; Options: TStringSearchOptions = [soDown]
@ -180,7 +181,7 @@ Procedure NotYetImplemented (FN : String);
begin
Raise Exception.CreateFmt('Function "%s" (strutils) is not yet implemented',[FN]);
end;
end;
{ ---------------------------------------------------------------------
Case sensitive search/replace
@ -189,7 +190,10 @@ end;
Function AnsiResemblesText(const AText, AOther: string): Boolean;
begin
NotYetImplemented(' AnsiResemblesText');
if Assigned(AnsiResemblesProc) then
Result:=AnsiResemblesProc(AText,AOther)
else
Result:=False;
end;
Function AnsiContainsText(const AText, ASubText: string): Boolean;
@ -233,14 +237,8 @@ end;
Function AnsiMatchText(const AText: string; const AValues: array of string): Boolean;
var i : longint;
begin
result:=false;
if high(AValues)=-1 Then exit;
for i:=low(AValues) to High(Avalues) do
if avalues[i]=atext Then
result:=true;
Result:=(AnsiIndexText(AText,AValues)<>-1)
end;
@ -251,10 +249,11 @@ var i : longint;
begin
result:=-1;
if high(AValues)=-1 Then exit;
if high(AValues)=-1 Then
Exit;
for i:=low(AValues) to High(Avalues) do
if avalues[i]=atext Then
exit(i); // make sure it is the first val.
if CompareText(avalues[i],atext)=0 Then
exit(i); // make sure it is the first val.
end;
@ -295,47 +294,22 @@ end;
Function AnsiMatchStr(const AText: string; const AValues: array of string): Boolean;
var
counter: integer;
begin
counter := 0;
{$ifdef INTERNLENGTH}
while(counter < length(AValues)) do
{$else}
while(counter < high(AValues)+1) do
{$endif}
begin
if(AText = AValues[counter]) then
begin
Result := true;
exit;
end;
inc(counter);
end;
Result := false;
Result:=AnsiIndexStr(AText,Avalues)<>-1;
end;
Function AnsiIndexStr(const AText: string; const AValues: array of string): Integer;
var
counter: integer;
var i : longint;
begin
counter := 0;
{$ifdef INTERNLENGTH}
while(counter < length(AValues)) do
{$else}
while(counter < high(AValues)+1) do
{$endif}
begin
if(AText = AValues[counter]) then
begin
Result := counter;
exit;
end;
inc(counter);
end;
Result := -1;
result:=-1;
if high(AValues)=-1 Then
Exit;
for i:=low(AValues) to High(Avalues) do
if (avalues[i]=AText) Then
exit(i); // make sure it is the first val.
end;
@ -379,7 +353,7 @@ end;
Function AnsiReverseString(const AText: AnsiString): AnsiString;
begin
NotYetImplemented(' AnsiReverseString');
Result:=ReverseString(AText);
end;
@ -411,7 +385,10 @@ end;
Function IfThen(AValue: Boolean; const ATrue: string; AFalse: string): string;
begin
if avalue then result:=atrue else result:=afalse;
if avalue then
result:=atrue
else
result:=afalse;
end;
@ -419,7 +396,10 @@ end;
Function IfThen(AValue: Boolean; const ATrue: string): string; // ; AFalse: string = ''
begin
if avalue then result:=atrue else result:='';
if avalue then
result:=atrue
else
result:='';
end;
@ -428,13 +408,13 @@ end;
VB emulations.
---------------------------------------------------------------------}
Function LeftStr(const AText: AnsiString; const ACount: Integer): AnsiString;
Function LeftStr(const AText: AnsiString; const ACount: Integer): AnsiString;
begin
Result:=Copy(AText,1,ACount);
end;
Function RightStr(const AText: AnsiString; const ACount: Integer): AnsiString;
Function RightStr(const AText: AnsiString; const ACount: Integer): AnsiString;
var j,l:integer;
@ -445,12 +425,12 @@ begin
Result:=Copy(AText,l-j+1,j);
end;
Function MidStr(const AText: AnsiString; const AStart, ACount: Integer): AnsiString;
Function MidStr(const AText: AnsiString; const AStart, ACount: Integer): AnsiString;
begin
if (ACount=0) or (AStart>length(atext)) then
exit('');
Result:=Copy(AText,AStart,ACount);
Result:=Copy(AText,AStart,ACount);
end;
@ -458,7 +438,7 @@ end;
Function LeftBStr(const AText: AnsiString; const AByteCount: Integer): AnsiString;
begin
NotYetImplemented(' LeftBStr');
Result:=LeftStr(AText,AByteCount);
end;
@ -466,7 +446,7 @@ end;
Function RightBStr(const AText: AnsiString; const AByteCount: Integer): AnsiString;
begin
NotYetImplemented(' RightBStr');
Result:=RightStr(Atext,AByteCount);
end;
@ -474,7 +454,7 @@ end;
Function MidBStr(const AText: AnsiString; const AByteStart, AByteCount: Integer): AnsiString;
begin
NotYetImplemented(' MidBStr');
Result:=MidStr(AText,AByteStart,AByteCount);
end;
@ -498,30 +478,36 @@ end;
Function AnsiMidStr(const AText: AnsiString; const AStart, ACount: Integer): AnsiString;
begin
NotYetImplemented(' AnsiMidStr');
Result:=Copy(AText,AStart,ACount);
end;
{$ifndef ver1_0}
Function LeftStr(const AText: WideString; const ACount: Integer): WideString;
Function LeftStr(const AText: WideString; const ACount: Integer): WideString;
begin
NotYetImplemented(' LeftStr');
Result:=Copy(AText,1,ACount);
end;
Function RightStr(const AText: WideString; const ACount: Integer): WideString;
Function RightStr(const AText: WideString; const ACount: Integer): WideString;
var
j,l:integer;
begin
NotYetImplemented(' RightStr');
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;
Function MidStr(const AText: WideString; const AStart, ACount: Integer): WideString;
begin
NotYetImplemented(' MidStr');
Result:=Copy(AText,AStart,ACount);
end;
{$endif}
@ -534,8 +520,109 @@ end;
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
NotYetImplemented(' SearchBuf');
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;
@ -543,7 +630,7 @@ end;
Function SearchBuf(Buf: PChar; BufLen: Integer; SelStart, SelLength: Integer; SearchString: String): PChar; // ; Options: TStringSearchOptions = [soDown]
begin
NotYetImplemented(' SearchBuf');
Result:=SearchBuf(Buf,BufLen,SelStart,SelLength,SearchString,[soDown]);
end;
@ -642,12 +729,30 @@ 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
NotYetImplemented(' SoundexInt');
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;
@ -655,28 +760,41 @@ end;
Function SoundexInt(const AText: string): Integer; //; ALength: TSoundexIntLength = 4
begin
NotYetImplemented(' SoundexInt');
Result:=SoundexInt(AText,4);
end;
Function DecodeSoundexInt(AValue: Integer): string;
var
I, Len: Integer;
begin
NotYetImplemented(' DecodeSoundexInt');
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
Var
S : String;
begin
S:=SoundEx(Atext,4);
Writeln('Soundex result : "',S,'"');
Result:=Ord(S[1])-Ord('A');
Result:=Ord(S[1])-OrdA;
Result:=Result*26+StrToInt(S[2]);
Result:=Result*7+StrToInt(S[3]);
Result:=Result*7+StrToInt(S[4]);
@ -687,7 +805,13 @@ end;
Function DecodeSoundexWord(AValue: Word): string;
begin
NotYetImplemented(' DecodeSoundexWord');
Result := Chr(Ord0+ (AValue mod 7)) + Result;
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;
@ -695,7 +819,7 @@ end;
Function SoundexSimilar(const AText, AOther: string; ALength: TSoundexLength): Boolean;
begin
NotYetImplemented(' SoundexSimilar');
Result:=Soundex(AText,ALength)=Soundex(AOther,ALength);
end;
@ -703,7 +827,7 @@ end;
Function SoundexSimilar(const AText, AOther: string): Boolean; //; ALength: TSoundexLength = 4
begin
NotYetImplemented(' SoundexSimilar');
Result:=SoundexSimilar(AText,AOther,4);
end;
@ -711,7 +835,7 @@ end;
Function SoundexCompare(const AText, AOther: string; ALength: TSoundexLength): Integer;
begin
NotYetImplemented(' SoundexCompare');
Result:=AnsiCompareStr(Soundex(AText,ALength),Soundex(AOther,ALength));
end;
@ -719,7 +843,7 @@ end;
Function SoundexCompare(const AText, AOther: string): Integer; //; ALength: TSoundexLength = 4
begin
NotYetImplemented(' SoundexCompare');
Result:=SoundexCompare(AText,AOther,4);
end;
@ -727,13 +851,13 @@ end;
Function SoundexProc(const AText, AOther: string): Boolean;
begin
NotYetImplemented(' SoundexProc');
Result:=SoundexSimilar(AText,AOther);
end;
{ ---------------------------------------------------------------------
RxStrUtils-like functions.
---------------------------------------------------------------------}
function IsEmptyStr(const S: string; const EmptyChars: TSysCharSet): Boolean;
@ -744,7 +868,7 @@ begin
l:=Length(S);
i:=1;
Result:=True;
while Result and (i<=l) do
while Result and (i<=l) do
begin
Result:=Not (S[i] in EmptyChars);
Inc(i);
@ -767,7 +891,7 @@ begin
I:=Length(Result);
While I>0 do
begin
if Result[I]=Chr then
if Result[I]=Chr then
begin
J:=I-1;
While (J>0) and (Result[J]=Chr) do
@ -776,8 +900,8 @@ begin
I:=J+1;
end;
dec(I);
end;
end;
end;
end;
function DelSpace1(const S: string): string;
@ -815,22 +939,22 @@ 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
Repeat
p:=pos(C,S);
Inc(k,p);
if p>0 then
if p>0 then
delete(S,1,p);
Inc(i);
Until (i>n) or (p=0);
Until (i>n) or (p=0);
If (P>0) then
Result:=K;
Result:=K;
end;
function AddChar(C: Char; const S: string; N: Integer): string;
@ -871,7 +995,7 @@ function Copy2Symb(const S: string; Symb: Char): string;
var
p: Integer;
begin
p:=Pos(Symb,S);
if p=0 then
@ -983,9 +1107,9 @@ begin
begin
j:=i;
l:=Length(S);
while (j<=L) and not (S[j] in WordDelims) do
while (j<=L) and not (S[j] in WordDelims) do
inc(j);
end;
end;
SetLength(Result,j-i);
If ((j-i)>0) then
Move(S[i],Result[1],j-i);
@ -1000,13 +1124,13 @@ begin
l:=0;
len:=Length(S);
SetLength(Result, 0);
while (i<=len) and (w<>N) do
while (i<=len) and (w<>N) do
begin
if s[i] in Delims then
if s[i] in Delims then
inc(w)
else
else
begin
if (N-1)=w then
if (N-1)=w then
begin
inc(l);
SetLength(Result,l);
@ -1025,10 +1149,10 @@ var
begin
i:=Pos;
l:=Length(S);
while (i<=l) and not (S[i] in Delims) do
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
if (i<=l) and (S[i] in Delims) then
inc(i);
Pos:=i;
end;
@ -1066,12 +1190,12 @@ end;
function PadCenter(const S: string; Len: Integer): string;
begin
if Length(S)<Len then
if Length(S)<Len then
begin
Result:=StringOfChar(' ',(Len div 2) -(Length(S) div 2))+S;
Result:=Result+StringOfChar(' ',Len-Length(Result));
end
else
else
Result:=S;
end;
@ -1079,9 +1203,9 @@ function Hex2Dec(const S: string): Longint;
var
HexStr: string;
begin
if Pos('$',S)=0 then
if Pos('$',S)=0 then
HexStr:='$'+ S
else
else
HexStr:=S;
Result:=StrTointDef(HexStr,0);
end;
@ -1118,17 +1242,17 @@ 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
while (i>=1) do
begin
if (S[i]>'@') then
if (S[i]>'@') then
Result:=Result+(Ord(S[i])-55)*P
else
else
Result:=Result+(Ord(S[i])-48)*P;
Dec(i);
P:=P*Base;
@ -1158,11 +1282,11 @@ begin
begin
inc(i);
index:=UpCase(S[i]);
if index in RomanChars then
if index in RomanChars then
begin
if Succ(i)<=l then
Next:=UpCase(S[i+1])
else
else
Next:=#0;
if (Next in RomanChars) and (RomanValues[index]<RomanValues[Next]) then
begin
@ -1173,7 +1297,7 @@ begin
else
inc(Result, RomanValues[index]);
end
else
else
begin
Result:=0;
Exit;
@ -1190,7 +1314,7 @@ const
= (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;
@ -1206,11 +1330,11 @@ end;
function intToBin(Value: Longint; Digits, Spaces: Integer): string;
begin
Result:='';
if (Digits>32) then
if (Digits>32) then
Digits:=32;
while (Digits>0) do
while (Digits>0) do
begin
if (Digits mod Spaces)=0 then
if (Digits mod Spaces)=0 then
Result:=Result+' ';
Dec(Digits);
Result:=Result+intToStr((Value shr Digits) and 1);
@ -1224,25 +1348,25 @@ var
begin
Result:=0;
i:=Pos('?',HelpWilds);
if (i=0) then
if (i=0) then
Result:=Pos(HelpWilds, inputStr)
else
begin
begin
Diff:=Length(inputStr) - Length(HelpWilds);
for i:=0 to Diff do
for i:=0 to Diff do
begin
for J:=1 to Length(HelpWilds) do
for J:=1 to Length(HelpWilds) do
if (inputStr[i + J] = HelpWilds[J]) or (HelpWilds[J] = '?') then
begin
if (J=Length(HelpWilds)) then
if (J=Length(HelpWilds)) then
begin
Result:=i+1;
Exit;
end;
end
else
else
Break;
end;
end;
end;
end;
@ -1252,7 +1376,7 @@ function isWild(inputStr, Wilds: string; ignoreCase: Boolean): Boolean;
begin
Result:=Pos('*', Wilds);
if Result>0 then
if Result>0 then
Wilds:=Copy(Wilds,1,Result - 1);
end;
@ -1352,7 +1476,7 @@ function XorEncode(const Key, Source: string): string;
var
i: Integer;
C: Byte;
begin
Result:='';
for i:=1 to Length(Source) do
@ -1405,7 +1529,10 @@ end.
{
$Log$
Revision 1.8 2004-07-13 18:42:39 michael
Revision 1.9 2004-07-21 20:37:03 michael
+ Implemented all functions
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
@ -1423,4 +1550,4 @@ end.
Revision 1.3 2004/03/18 16:55:47 marco
* more simple implementations done, based on copy() Largely untested
}
}