🚀 go-pugleaf

"Frank Hickman" <fhickman_nosp@m_noblesoft.com> wrote in message
news:uIWdnZPEO6ofaJ_dRVn-ig@comcast.com...
<<>>>
>
> Just my two cents, of course when asking a question like this your bound
to
> get several different variations :)
>
<<>>
Thanks Frank, much more than 2 cents worth, very useful.
I must admit I expected more takers wich such an inviting subject line!
I came up with one more variation myself taking your comments into
account...
and then added a timeout.

Any comments on the code below?

Hal.

/*
 * choiceyn.c - heavily cut down clone of Win98's CHOICE.COM.
 * The only parameter allowed is -t which works like '/t:y,05' does on
 * CHOICE.COM, otherwise works like 'CHOICE.COM' (i.e. with no arguments)
 *
 * No warranty whatsoever given or implied.
 *
 * v1.1, Hal Styli, 2004.
 */

#if !defined( _MSC_VER ) && !defined( __BORLANDC__ )
 #error This source has not otherkeyeen tested on this platform / with this
compiler
#endif

#include <stdio.h>
#include <conio.h>   /* for getch() */
#include <windows.h> /* for Sleep() */

#define WAITTIME 200
#define TIMEOUT (5*(1000/WAITTIME))

#define PR(s)  fputs(s,stdout)
#define PRE(s) fputs(s,stderr)

void yn();
int getargs(int argc, char **argv);

/*---------------------------------------------------*/
int main(int argc, char **argv )
{
    int t=0, otherkey=0;

    t=getargs(argc,argv);

    PR("[Y,N]?");

    if(t>0)
    {
       while(t--)
       {
          if (kbhit())
   {
             yn();
      otherkey=1;
      break;
   }

          Sleep(WAITTIME);
       }

       if (otherkey)  /* then revert to no timeout.*/
         for(;;)
            yn();
       {
  PR("Y\n");
  exit(1);
       }
    }
    else
       for(;;)
   yn();
}
/*---------------------------------------------------*/
void yn()
{
   switch(getch())
   {
      case 'y':  case 'Y':
        PR("Y\n");
        exit(1);
        /*break;*/
      case 'n': case 'N':
        PR("N\n");
        exit(2);
        /*break;*/
      default:
        putchar('\a'); /*beep*/
        break;
   }
}
/*---------------------------------------------------*/
int getargs(int argc, char **argv)
{
  int t=0;

    if(argc==2)
    {
 if( (argv[1][0]=='-') && (argv[1][1]=='t'))
           t= TIMEOUT;
  else
    t= -1;
    }
    else if(argc!=1)
 t= -1;

    if(t==-1)
    {
      PRE("\nInvalid argument in choiceyn command.\n");
      exit(255);
    }
    else
      return t;
}
/*---------------------------------------------------*/