Extract string between two number delphi

[toufik 2]

hello every one ,,

i'm trying to extract  a string g lets say i have this long string :

2090Lj32J5Y6Ni6Q2Rt8c538u1X227L340Q8N1....ce4A3z6l96S5v7LZ3OhSVoB538k7wPTn13E2w2D0h104fJ7HP09x

o7W71J1o02c088922A3t420697F5431XP91C6JF9w1Ss0Tuk5S669207816gp57pW193BPWL27AZ052nr2S714...30

ps  : i added the point(....) to show the palaces i want  to split the string.

i want tto be able  to get start from 3 string and put it  in variable to use it later 

2090Lj32J5Y6Ni6Q2Rt8c538u1X227L340Q8N1 
and .......

ce4A3z6l96S5v7LZ3OhSVoB538k7wPTn13E2w2D0h104fJ7HP09x

o7W71J1o02c088922A3t420697F5431XP91C6JF9w1Ss0Tuk5S669207816gp57pW193BPWL27AZ052nr2S714v
and ......

30

..
i  did  tried to play with this ;  Registration_number :=(length(str)).ToString; 
no luck yet .

[FPiette 385]

One possible solution:

procedure TForm1.Button1Click(Sender: TObject);
const
    SrcString : String = '2090Lj32J5Y6Ni6Q2Rt8c538u1X227L340Q8N1...ce4A3z6l96S5v7LZ3OhSVoB538k7wPTn13E2w2D0h104fJ7HP09xo7W71J1o02c088922A3t420697F5431XP91C6JF9w1Ss0Tuk5S669207816gp57pW193BPWL27AZ052nr2S714...30';
    Delim     : String = '...';
var
    S : array [1..3] of String;
    I, J, K    : Integer;
begin
    J := 1;
    I := Low(S);
    while I <= High(S) do begin
        K := Pos(Delim, SrcString, J);
        if K <= 0 then begin
            S[I] := Copy(SrcString, J);
            while I < High(S) do begin
                Inc(I);
                S[I] := '';
            end;
            break;
        end;
        S[I] := Copy(SrcString, J, K - J);
        J    := K + Length(Delim);
        Inc(I);
    end;

    for I := Low(S) to High(S) do
        Memo1.Lines.Add(S[I]);
end;

 

[Fasday 1]

You can use TStringHelper.Split.

procedure TForm2.Button1Click(Sender: TObject);
const
    SrcString : String = '2090Lj32J5Y6Ni6Q2Rt8c538u1X227L340Q8N1...ce4A3z6l96S5v7LZ3OhSVoB538k7wPTn13E2w2D0h104fJ7HP09xo7W71J1o02c088922A3t420697F5431XP91C6JF9w1Ss0Tuk5S669207816gp57pW193BPWL27AZ052nr2S714...30';
    Delim     : String = '...';
var
    S : TArray<string>;
begin
  S := SrcString.Split(Delim);
  Memo1.Lines.AddStrings(S);
end;

 

[qubits 20]

so the dots are not part of the string.

do you know the length of the breaks? or a pattern to look for? seems pretty random.

and where did the "14v" <- the v not in the original string..

[Guest]

more easy...  helper for STRING type = SPLIT(...)

 

var

MyArrStrings:TArray<string>;

begin

  MyArrStrings := MyStrWithValuesToSplit.SPLIT(['...']);

  ....

MyArrStrings[0] .... MyArrStrings[n]

 

  for var MyItem in MyArrStrings do

ShowMessage( MyItem )

 

....using   JOIN(...) you rebuilt it if you need reverse task

 

 

Edited February 17, 2022 by Guest