' Intérprete de HQ9+
' FB 1.05.0 Win64
'

Dim Shared codigo As String: codigo = ""

Function HQ9plus(codigo As String) As String
    Dim As Byte botellas, cont
    Dim acumulador As Uinteger = 0
    Dim HQ9plus1 As String
    For cont = 1 To Len(codigo)
        Select Case Ucase(Mid(codigo, cont, 1))
        Case "H"
            HQ9plus1 = HQ9plus1 + "Hello, world!"
        Case "Q"
            HQ9plus1 = HQ9plus1 + codigo
        Case "9"
            For botellas = 99 To 1 Step -1
                HQ9plus1 = HQ9plus1 + Str(botellas) + " bottle"
                If (botellas > 1) Then HQ9plus1 = HQ9plus1 + "s"
                HQ9plus1 = HQ9plus1 + " of beer on the wall, " + Str(botellas) + " bottle"
                If (botellas > 1) Then HQ9plus1 = HQ9plus1 + "s"
                HQ9plus1 = HQ9plus1 + " of beer,"  + Chr(13) + Chr(10) +_
                "Take one down, pass it around, " + Str(botellas - 1) + " bottle"
                If (botellas > 2) Then HQ9plus1 = HQ9plus1 + "s"
                HQ9plus1 = HQ9plus1 + " of beer on the wall." + Chr(13) + Chr(10) + Chr(10)
            Next botellas
            HQ9plus1 = HQ9plus1 + "No more bottles of beer on the wall, no more bottles of beer." +_
            Chr(13) + Chr(10) + "Go to the store and buy some more, 99 bottles of beer on the wall."
        Case "+"
            acumulador = (acumulador + 1)
        Case "E"
            End
        Case Else
            'no es una instrucción válida
        End Select
        If Mid(codigo, cont, 1) <> "+" Then
            HQ9plus1 = HQ9plus1 + Chr(13) + Chr(10)
        End If
    Next cont
    HQ9plus = Left(HQ9plus1, (Len(HQ9plus1) - 2))
End Function


Cls
Do
    Input codigo
    Print HQ9plus(codigo): Print
Loop While Inkey <> Chr(27)
End