Memo,Radiobutton избавить от кавычек и спарсить

unit Unit1;
 
interface
 
uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, StrUtils;
 
type
  TForm1 = class(TForm)
    GroupBox1: TGroupBox;
    RadioButton1: TRadioButton;
    RadioButton2: TRadioButton;
    RadioButton3: TRadioButton;
    GroupBox2: TGroupBox;
    RadioButton4: TRadioButton;
    RadioButton5: TRadioButton;
    Memo1: TMemo;
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;
 
var
  Form1: TForm1;
 
implementation
 
{$R *.dfm}
 
procedure TForm1.Button1Click(Sender: TObject);
var s:string;
b,e:integer;
begin
s:=memo1.Text;
if radiobutton1.Checked then begin
b:=posEx('"',s,1);
e:=posEX('"',s,2)+1;
end else
if radiobutton2.Checked then begin
b:=posEx('"',s,3);
e:=posEX('"',s,4)+1;
end else
if radiobutton3.Checked then begin
b:=Pos('STEAM_',s);
e:=b+length('STEAM_');
while s[e]<>' ' do inc(e);
end;
s:=copy(s,b,e-b);
if radiobutton5.Checked then s:=copy(s,2,length(s)-1) else
showmessage(s);
 
end;
 
end.

object Form1: TForm1
  Left = 192
  Top = 114
  Width = 424
  Height = 283
  Caption = 'Form1'
  Color = clBtnFace
  Font.Charset = DEFAULT_CHARSET
  Font.Color = clWindowText
  Font.Height = -11
  Font.Name = 'MS Sans Serif'
  Font.Style = []
  OldCreateOrder = False
  PixelsPerInch = 96
  TextHeight = 13
  object GroupBox1: TGroupBox
    Left = 8
    Top = 8
    Width = 137
    Height = 105
    Caption = 'Что парсить.'
    TabOrder = 0
    object RadioButton1: TRadioButton
      Left = 8
      Top = 16
      Width = 113
      Height = 17
      Caption = '1 кавычки'
      Checked = True
      TabOrder = 0
      TabStop = True
    end
    object RadioButton2: TRadioButton
      Left = 8
      Top = 48
      Width = 113
      Height = 17
      Caption = '2 кавычки'
      TabOrder = 1
    end
    object RadioButton3: TRadioButton
      Left = 8
      Top = 80
      Width = 121
      Height = 17
      Caption = 'SteamID (из status)'
      TabOrder = 2
    end
  end
  object GroupBox2: TGroupBox
    Left = 8
    Top = 120
    Width = 137
    Height = 73
    Caption = 'Кавычки'
    TabOrder = 1
    object RadioButton4: TRadioButton
      Left = 8
      Top = 16
      Width = 113
      Height = 17
      Caption = 'Оставить'
      Checked = True
      TabOrder = 0
      TabStop = True
    end
    object RadioButton5: TRadioButton
      Left = 8
      Top = 48
      Width = 113
      Height = 17
      Caption = 'Убрать'
      TabOrder = 1
    end
  end
  object Memo1: TMemo
    Left = 152
    Top = 8
    Width = 257
    Height = 233
    Lines.Strings = (
      'Memo1')
    TabOrder = 2
  end
  object Button1: TButton
    Left = 8
    Top = 200
    Width = 137
    Height = 41
    Caption = 'Parse'
    TabOrder = 3
    OnClick = Button1Click
  end
end