Delphi Integer Ordinal Suffix

{ DFM }

object Form1: TForm1
  Left = 0
  Top = 0
  Caption = 'Form1'
  ClientHeight = 214
  ClientWidth = 266
  Color = clBtnFace
  Font.Charset = DEFAULT_CHARSET
  Font.Color = clWindowText
  Font.Height = -11
  Font.Name = 'Tahoma'
  Font.Style = []
  OldCreateOrder = False
  PixelsPerInch = 96
  TextHeight = 13
  object Label1: TLabel
    Left = 88
    Top = 112
    Width = 31
    Height = 13
    Caption = 'Label1'
  end
  object Button1: TButton
    Left = 80
    Top = 64
    Width = 75
    Height = 25
    Caption = 'Button1'
    TabOrder = 0
    OnClick = Button1Click
  end
  object SpinEdit1: TSpinEdit
    Left = 64
    Top = 24
    Width = 121
    Height = 22
    MaxValue = 0
    MinValue = 0
    TabOrder = 1
    Value = 42
  end
end

{ PAS }

unit uMain;

interface

uses
  Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
  Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Vcl.Samples.Spin;

type
  TForm1 = class(TForm)
    Button1: TButton;
    Label1: TLabel;
    SpinEdit1: TSpinEdit;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

const
  Ends: array[0..9] of String = ('th','st','nd','rd','th','th','th','th','th','th');

function IntSuffix(const Number: Integer; const AddSpace: Boolean = False;
  const SuffixOnly: Boolean = False): String;
begin
  if not SuffixOnly then begin
    Result:= IntToStr(Number);
    if AddSpace then Result:= Result + ' ';
  end;
  if ((Number mod 100) >= 11) and ((Number mod 100) <= 13) then
    Result:= IntToStr(Number) + 'th'
  else
    Result:= IntToStr(Number) + Ends[Number mod 10];
end;

(*
$ends = array('th','st','nd','rd','th','th','th','th','th','th');
if (($number %100) >= 11 && ($number%100) <= 13)
   $abbreviation = $number. 'th';
else
   $abbreviation = $number. $ends[$number % 10];
*)

procedure TForm1.Button1Click(Sender: TObject);
begin
  Label1.Caption:= IntSuffix(SpinEdit1.Value);
end;

end.