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unit Strz;
interface
uses
Windows;
type
CharSet = set of Char;
// General
function MyStrToInt(const S: String): Integer; // some special checking, no exceptions
function MyStrToFloat(const S: String): Extended; // some special checking, no exceptions
function StrToRect(const S: String): TRect;
function Long2Str(L : LongInt) : string;
function SearchAndReplace( S, Old, New:String ):String;
function WordCount(S : string; WordDelims : CharSet) : Integer;
{-Given a set of word delimiters, return number of words in S}
function ExtractWord(N : Integer; S : string; WordDelims : CharSet) : string;
{-Given a set of word delimiters, return the N'th word in S}
// Filez
function VerifyBackSlash( const FileName:String ):String;
implementation
uses
Classes, SysUtils;
function StrToRect(const S: String): TRect;
var
i: Integer;
begin
Result := Rect(0, 0, 0, 0);
if S='' then Exit;
i := WordCount(S, [' ']);
Result.Left := MyStrToInt(ExtractWord(1, S, [' ']));
if i>1 then
Result.Top := MyStrToInt(ExtractWord(2, S, [' ']));
if i>2 then
Result.Right := MyStrToInt(ExtractWord(3, S, [' ']));
if i>3 then
Result.Bottom := MyStrToInt(ExtractWord(4, S, [' ']));
end;
function MyStrToInt(const S: String): Integer;
var
St: String;
begin
Result := 0;
if (S='') or (S='-') or (S='0') then Exit;
try
Result := StrToInt(S);
except
St := S;
while Pos('.', St)>0 do
St[Pos('.', St)] := ',';
try Result := Trunc(StrToFloat(St)); except end;
end;
end;
function MyStrToFloat(const S: String): Extended;
var
St: String;
i: Integer;
begin
Result := 0;
if (S='') or (S='-') or (S='0') then Exit;
St := S;
i := Pos('.', St);
if i>0 then
St[i] := ',';
try
Result := StrToFloat(St);
except
end;
end;
function VerifyBackSlash( const FileName:String ):String;
begin
if FileName[Length(FileName)]='\' then
Result := FileName
else
Result := FileName + '\';
end;
function Long2Str(L : LongInt) : string;
{-Convert a long/word/integer/byte/shortint to a string}
var
S : string;
begin
Str(L, S);
Long2Str := S;
end;
{-----}
function WordCount(S : string; WordDelims : CharSet) : Integer;
{-Given a set of word delimiters, return number of words in S}
var
{I,} Count : Integer; {!!.12}
I, SLen : Word; {!!.12}
begin
Count := 0;
I := 1;
SLen:=Length(S);
while I <= SLen do begin
{skip over delimiters}
while (I <= SLen) and (S[I] in WordDelims) do
Inc(I);
{if we're not beyond end of S, we're at the start of a word}
if I <= SLen then
Inc(Count);
{find the end of the current word}
while (I <= SLen) and not(S[I] in WordDelims) do
Inc(I);
end;
WordCount := Count;
end;
function ExtractWord(N : Integer; S : string; WordDelims : CharSet) : string;
{-Given a set of word delimiters, return the N'th word in S}
var
I : Word; {!!.12}
Count, Len : Integer;
SLen : Longint;
Str : String;
begin
Count := 0;
I := 1;
Len := 0;
Str := '';
SLen := Length(S);
// ExtractWord[0] := #0;
while (I <= SLen) and (Count <> N) do begin
{skip over delimiters}
while (I <= SLen) and (S[I] in WordDelims) do
Inc(I);
{if we're not beyond end of S, we're at the start of a word}
if I <= SLen then
Inc(Count);
{find the end of the current word}
while (I <= SLen) and not(S[I] in WordDelims) do begin
{if this is the N'th word, add the I'th character to Tmp}
if Count = N then begin
Inc(Len);
SetLength(Str, Len);
// ExtractWord[0] := Char(Len);
Str[Len] := S[I];
// ExtractWord[Len] := S[I];
end;
Inc(I);
end;
end;
ExtractWord := Str;
end;
function SearchAndReplace( S, Old, New:String ):String;
var
Ts : String;
i : Integer;
begin
Ts := S;
i := Pos(Old, Ts);
while i>0 do begin
Delete(Ts, i, Length(Old));
Insert(New, Ts, i);
i := Pos(Old, Ts);
end;
SearchAndReplace := Ts;
end;
end.
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