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From: Marius Amado Alves <amado.alves@netcabo.pt>
Newsgroups: comp.lang.ada
Subject: Re: variable lenght strings
Date: Fri, 22 Oct 2004 00:01:02 +0100
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Date: 2004-10-22T00:01:02+01:00

>   loop
>     Find_Token(S(F..L), Alphanumeric_Set or To_Set("_."), Inside, F,
> L);
>     if L /= 0 then
>        Put_Line( Positive'Image( F ) & ( L - F ) * ' ' &
> Natural'Image( L ) );
>          Move( S( F..L ), W );
>          Put_Line( ' ' & W );
>          F := L + 1;
>          L := S'Last;
>     else 
>        exit;
>     end if;
>   end loop;      
> 
> Is it correct to check the "L" value as a condition to exit the loop?

Yes, but don't mix L and S'Last:

...
 >     L : Natural;
...
 >     Find_Token (S(F..S'Last), ...
...
 >          -- L := S'Last; ERASE THIS LINE