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Palindrome in ADA
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with Ada.Text_IO, Ada.Integer_Text_IO, Ada.Characters.Handling, Ada.Strings, Ada.Strings.Maps, Ada.Strings.Fixed; | |
use Ada.Text_IO, Ada.Integer_Text_IO, Ada.Characters.Handling; | |
procedure Palindromi is | |
Scelta : Integer := 0 ; | |
procedure Intestazione is | |
begin | |
Put_Line("*** Controllo stringa palindroma ***") ; | |
Put_Line("*** Autore: Claudio Ludovico Panetta ***") ; | |
Put_Line("*** Data: 10/11/2011 ***") ; | |
Put_Line("*** Stato: Release 1.0.0.1 ***") ; | |
Put_Line("*** Eccezioni: Non Gestite ***") ; | |
New_Line(3) ; | |
end Intestazione ; | |
procedure Menu is | |
begin | |
New_Line(2) ; | |
Put_Line("*** Menu di scelta ***") ; | |
Put_Line("*** 1 - Controlla una stringa ***") ; | |
Put_Line("*** 2 - Esci dal programma ***") ; | |
Put_Line("*********************************") ; | |
New_Line(2) ; | |
end Menu ; | |
function CuraTesto(Stringa_Input: String) return String is | |
-- Ritorna tutto minuscolo | |
begin | |
return To_Lower(Stringa_Input) ; | |
end CuraTesto; | |
function InvertiStringa(Stringa_Input: String) return String is | |
-- Ritorna il reverse della stringa data | |
begin | |
-- Questo è per mostrare come avviene la ricorsione | |
Put_line(Item => Stringa_Input) ; | |
if Stringa_Input'Length <= 1 then | |
return Stringa_Input ; | |
else | |
return InvertiStringa(Stringa_Input(Stringa_Input'First + 1.. Stringa_Input'Last)) & Stringa_Input(Stringa_Input'First); | |
end if; | |
end InvertiStringa; | |
procedure Procedi(Scelta: in INTEGER) is | |
Input : String(1 .. 80); -- Input per ottenre la stringa dall'utente | |
Last : Natural; -- Il carattere finale | |
Reverse_input : String(1 .. 80); -- La stringa in reverse | |
begin | |
case(Scelta) is | |
when 1 => | |
Put(Item => "Ciao, Inserisci una stringa di 80 o meno caratteri: "); | |
Get_Line(Item => Input, Last => Last); | |
Input := CuraTesto(Input) ; | |
Reverse_input(1..Last) := InvertiStringa(Input(1..Last)); | |
Put("L'inverso e "); Put(Item => Reverse_input(1..Last)); | |
New_Line(1) ; | |
if Reverse_input (1..Last) = Input (1..Last) THEN | |
Put(Item => "Ed e palindroma :D."); | |
New_Line(1); | |
else | |
Put(Item => "E non e palindroma :(."); | |
New_Line(1) ; | |
end if; | |
when 2 => Put_Line("Ciao Ciao") ; | |
when others => Put_Line("Non computato") ; | |
end case ; | |
end Procedi; | |
begin | |
Intestazione ; | |
while Scelta /= 2 Loop | |
Menu ; | |
Put("Fai la tua Scelta: ") ; | |
Get(Item => Scelta, Width => 0) ; | |
Skip_Line; | |
if(Scelta /=1 and Scelta /=2) then | |
Put_Line("Questa scelta non e' valida") ; | |
else | |
Procedi(Scelta) ; | |
end if ; | |
end loop ; | |
end Palindromi; |
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