🚀 go-pugleaf

I do not know if there is some standard, ready to use
function for that, but you can easily make your own
version. This version assumes checks for HH:mm.

bool IsHourMinute( AnsiString AText )
{

   if ( AText .Length() != 5 )
      return ( false );

   if ( AText [3] != ':' )
      return ( false );

   int H, M;

   if ( AText [1] < '0' || AText [1] > '9' )
      return ( false );

   if ( AText [2] < '0' || AText [2] > '9' )
      return ( false );

   if ( AText [4] < '0' || AText [4] > '9' )
      return ( false );

   if ( AText [5] < '0' || AText [5] > '9' )
      return ( false );

   try
   {
      H = ( AText [1] - '0' ) * 10 + AText [2] - '0';
      M = ( AText [4] - '0' ) * 10 + AText [5] - '0';
   }
   catch ( const Exception& )
   {
      return ( false );
   }

   if ( H < 0 || H > 23 )
      return ( false );

   if ( M < 0 || M > 59 )
      return ( false );

   return ( true );
}


-- 
Best regards,
Vladimir Stefanovic
"DaniD" <together24@yahoo.com> wrote in message 
news:41efeefa@newsgroups.borland.com...
>
>  Hello,
> How can I check if a String has a format such as "hh:mm"?
> I want to be able to check if the inserted time is right.
> Thanks,