Re: Reading the while standard input into a String

["Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>]

On Mon, 6 Jun 2011 16:37:03 -0700 (PDT), Shark8 wrote:

>> Of course it is possible for Ada, of which syntax requires neither look
>> ahead or roll-back.
> 
> How are Strings handled? In particular, embedding the double-quote.
> How does one parse "Bill said, ""I don't care.""" w/o a look-ahead (or
> roll back)?

loop
   if Source (Index) = '"' then
      Index := Index + 1;
      exit when Source (Index) /= '"'; -- Does not belong to the literal
   end if;
   -- Process a new literal's character in Source (Index)
   Index := Index + 1;
end loop;

Yes, you always need a buffer for the current character, which some may
consider as a look-ahead, but I don't. (:-))

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de