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Function to Replace a value in a String

Posted on 2001-06-20
5
141 Views
Last Modified: 2010-04-06
Hi,

I'd like to know if there is a function which will replace
a value by another in a string.

I have a string which containts ' . I need to double the '
So I'd like to replace ' by '' .

Example: 'You'll find'   must be 'You''ll find'


Thank you !

Mary
0
Comment
Question by:msl22
5 Comments
 
LVL 3

Accepted Solution

by:
nnbbb09 earned 20 total points
ID: 6212010

You can use StringReplace

eg : result:=StringReplace('Some Text','Text','Message',[rfReplaceAll])

This will return 'Some Message' as the result.

There is also a function called QuotedStr which is used specifically for replace single quotes ' with double quotes ''.

regards

Jo
0
 
LVL 1

Expert Comment

by:Dennis9
ID: 6212027
Hi.
nnbbb09 is right, but u could also use this:

procedure TForm1.Button1Click(Sender: TObject);
var
s: String;
FoundPos, i: Integer;
begin
s := Edit1.Text;
for i := 1 to Length(s) do
begin
FoundPos := Pos(' ', s);//The stuff to search for
if FoundPos <> 0 then
begin
Delete(s, FoundPos, 1);
Insert('+', s, FoundPos);//The item to replace with
end;
end;
Edit1.Text := s;
end;


//Another exampel of StringReplace:
edit1.text := StringReplace(Edit1.Text, ' ', '+', [rfReplaceAll]);


Hope it helped
Dennis
0
 
LVL 3

Expert Comment

by:VSF
ID: 6212152
This should do it!
Just another way....

VSF
www.enge.cjb.net
www.victory.hpg.com.br

function ReplaceText(const S,ReplacePiece,ReplaceWith: String):String;

Var Position: Integer;
    TempStr: String;
begin
  Position := Pos(ReplacePiece,S);
  if Position > 0 then Begin
    TempStr := S;
    Delete(TempStr,1,Position-1+Length(ReplacePiece));
    Result :=
Copy(S,1,Position-1)+ReplaceWith+ReplaceText(TempStr,ReplacePiece,ReplaceWith)

  End else Result := S;
end;
0
 
LVL 20

Expert Comment

by:Madshi
ID: 6213122
If you need something as fast as possible, you should look here for a solution that will outperform all other suggestions, that were made yet...   :-)

http://help.madshi.net/Data/StringManipulate.htm#ReplaceStr

Regards, Madshi.
0
 

Author Comment

by:msl22
ID: 6214119
Thank you for all of you !!!
I really appreciate your comment !

Have a nice day.

Mary
0

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