# scanf test

resource scan ()
   string[50] s, t
   string[100] format

   process main  {
      int  i, j, k, l, n 
      real  x, y, z 
      ptr any  p 
      int  argtype = 0
      string[50] u
      bool  b = false
      bool  b1 = false
      char  c, ch, ca[1:10] 
      file  f 
      string[50] fname

      for [ i = 1 to 10 ] { ca[i] = '*' }

      if (getarg(1, fname) == EOF) { write("scan  usage<filename>"); stop }

      f = open(fname, READ)
      if (f == null) { write("couldn't open file"); stop }
      format = ""

      while (true) {
	   n = scanf(f, "%1s", ch)
	   if (n == EOF) { write("end"); stop }

	   if (ch == '$') {
		n = scanf(f, "%1s", ch)
		if (n == EOF) { write("error"); stop }

		if (ch == 'a') {
		     read(f, argtype)
#                    printf("argtype: %d %s\n", argtype, argstring[argtype])
		     printf("argtype: %d\n", argtype)
		} else if (ch == 'f' ) {
		     read(f, format)
		     printf("format: '%s'\n", format)
		} else if (ch == 'd' ) {
		     if (argtype == 1) {
			  i = j = -1
			  n = scanf(f, format, i, j)
			  printf("%3d <%2d>: %d %d\n", argtype, n, i, j)
		     } else if (argtype == 2 ) {
			  s = "uh-oh"
			  n = scanf(f, format, s)
			  printf("%3d <%2d>: '%s'\n", argtype, n, s)
		     } else if (argtype == 3 ) {
			  s = "arf!"
			  t = "boo!"
			  n = scanf(f, format, s, t)
			  printf("%3d <%2d>: '%s','%s'\n", argtype, n, s, t)
		     } else if (argtype == 4 ) {
			  c = '*'
			  s = "beef"
			  n = scanf(f, format, c, s)
			  printf("%3d <%2d>: %c, '%s'\n", argtype, n, c, s)
		     } else if (argtype == 5 ) {
			  n = scanf(f, format, b)
			  printf("%3d <%2d>: %b\n", argtype, n, b)
		     } else if (argtype == 6 ) {
			  n = scanf(f, format, b, b1)
			  printf("%3d <%2d>: %b, %b\n", argtype, n, b, b1)
		     } else if (argtype == 7 ) {
			  ca = chars("**********")
			  n = scanf(f, format, ca)
			  printf("%3d <%2d>: '%s'\n", argtype, n, ca)
		     } else if (argtype == 8 ) {
			  x = y = z = -1.0
			  n = scanf(f, format, x, y);
			  printf("%3d <%2d>: %g, %g\n",argtype,n,x,y)
		     } else if (argtype == 9 ) {
#                         p := ptr(0deadbeefX)
			  n = scanf(f, format, p)
			  printf("%3d <%2d>: %p\n",argtype,n,p)
		     } else if (argtype == 10 ) {
			  x = -1.0
			  s = "hurl!"
			  n = scanf(f, format, x, s);
			  printf("%3d <%2d>: %g, '%s'\n",argtype,n,x,s)
		     } else {
			  write("invalid argtype")
		     }

		     if (n == EOF) { write("EOF reached"); stop }
		} else { write("error"); stop
		}
	   } else if (ch == '#' ) { write("finished"); stop
	   }
      }
   }
end