Solved

Text Strings

Posted on 1998-10-23
4
138 Views
Last Modified: 2010-04-06
How do I do if I want to split a string in, lets say, three parts.
Each of the parts is separated by a semicolon, and the words should be able to have different lenghts.
one;two;three; or word1;blaha;hello
Each of the words should be put in a seperate string (like string1, string2, string3, or whatever...)
0
Comment
Question by:t0m3k
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
4 Comments
 

Accepted Solution

by:
vperez earned 100 total points
ID: 1344156
Ok...use the Pos function to find the semicolons like so it will give you where the first semicolon is.  Then use Copy and Delete. Like so:

end := Pos(";",mainstring);
string1 := Copy(mainstring,0,end-1);
mainstring := Delete(mainstring,0,end-1);

end := Pos(";",mainstring);
string2 := Copy(mainstring,0,end-1);
mainstring := Delete(mainstring,0,end);

Do this as many times as it takes...
0
 
LVL 2

Expert Comment

by:mvz121697
ID: 1344157
var cTotal,cSub1,cSub2,cSub3:string;
var nPos:integer;
begin
  cTotal:='one;two;three';
  cSub1:=cTotal;
  cSub2:='?';
  cSub3:='?';
  nPos:=Pos(';',cTotal)    ;
  if nPos>0 then begin
    cSub1:=copy(cTotal,1,nPos-1);
    cTotal:=Copy(cTotal,nPos+1,255);
    cSub2:=cTotal;
    nPos:=Pos(';',cSub2);
    if nPos>0 then begin
       cSub2:=copy(cTotal,1,nPos-1);
       cSub3:=Copy(cTotal,nPos+1,255);
    end;
  end;
  ShowMessage(cSub1);
  ShowMessage(cSub2);
  ShowMessage(cSub3);
end;

0
 

Expert Comment

by:vperez
ID: 1344158
well no offense or anything but mine is simpler...
and you can put it in a loop like so

i := 1;
Do
     i := i + 1;
     end := Pos(";",mainstring);
     string[i] := Copy(mainstring,0,end-1);
     mainstring := Delete(mainstring,0,end-1);
while(Pos(";",mainstring) = 0);
0
 
LVL 10

Expert Comment

by:viktornet
ID: 1344159
Here is how it is done....

Function Parse(TheItemStr, ParseStr : String; ItemNum : Integer): String;
 Var
  I4 : Integer;
  S4 : String;
Begin
TheItemStr := TheItemStr + ParseStr;
  S4 := '';
 I4 := 0;
 While I4 <= ItemNum Do
  Begin
   S4 := Copy(TheItemStr, 1, Pos(ParseStr, TheItemStr) - 1);
   Delete(TheItemStr, 1, Pos(ParseStr, TheItemStr));
   Inc(I4);
  End;
  Result := S4;
End;
Example call:
MyString := Parse(Memo1.Text, ';', 1);

Cheers,
Viktor
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Creating an auto free TStringList The TStringList is a basic and frequently used object in Delphi. On many occasions, you may want to create a temporary list, process some items in the list and be done with the list. In such cases, you have to…
In my programming career I have only very rarely run into situations where operator overloading would be of any use in my work.  Normally those situations involved math with either overly large numbers (hundreds of thousands of digits or accuracy re…
In a recent question (https://www.experts-exchange.com/questions/29004105/Run-AutoHotkey-script-directly-from-Notepad.html) here at Experts Exchange, a member asked how to run an AutoHotkey script (.AHK) directly from Notepad++ (aka NPP). This video…
I've attached the XLSM Excel spreadsheet I used in the video and also text files containing the macros used below. https://filedb.experts-exchange.com/incoming/2017/03_w12/1151775/Permutations.txt https://filedb.experts-exchange.com/incoming/201…

735 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question