//============================================ file = interval2vector.c =====
//=  Program to convert BUSY and IDLE intervals to vectors                  =
//===========================================================================
//=  Notes:                                                                 =
//=    1) Input from input file "in.dat" to stdin (see example below)       =
//=    2) Output is to stdout                                               =
//=    3) Input is a series of tuplets X,N where X is "I" (for idle) or "B" =
//=       (for busy) and N is number of minutes in this state               =
//=-------------------------------------------------------------------------=
//= Example "in.dat" file:                                                  =
//=                                                                         =
//=   BUSY, 2                                                               =
//=   IDLE, 11                                                              =
//=   BUSY, 5                                                               =
//=   IDLE, 1                                                               =
//=   IDLE, 2                                                               =
//=-------------------------------------------------------------------------=
//= Example output (for above "in.dat"):                                    =
//=                                                                         =
//=   110000000000011111000                                                 =
//=-------------------------------------------------------------------------=
//=  Build: bcc32 interval2vector.c                                         =
//=-------------------------------------------------------------------------=
//=  Execute: interval2vector < in.dat                                      =
//=-------------------------------------------------------------------------=
//=  Author: Ken Christensen                                                =
//=          University of South Florida                                    =
//=          WWW: http://www.csee.usf.edu/~christen                         =
//=          Email: christen@csee.usf.edu                                   =
//=-------------------------------------------------------------------------=
//=  History: KJC (07/17/12) - Genesis                                      =
//===========================================================================
//----- Include files -------------------------------------------------------
#include <stdio.h>                 // Needed for printf() and feof()
#include <stdlib.h>                // Needed for atoi() and exit()
#include <ctype.h>                 // Needed for toupper()

//===========================================================================
//=  Main program                                                           =
//===========================================================================
void main(void)
{
  char     state;                  // State ('B' or 'I')
  int      numValues;              // Number of values for state
  char     inValue1[16];           // Value #1 read-in
  char     inValue2[16];           // Value #2 read-in
  int      i;                      // Loop counter

  while(1)
  {
    // Get input tuple
    fscanf(stdin, "%s %s \n", inValue1, inValue2);
    state = toupper(inValue1[0]);
    numValues = atoi(inValue2);

    // Generate vector values
    for (i=0; i<numValues; i++)
    {
      if (state == 'B')
        printf("1");
      else if (state == 'I')
        printf("0");
      else
      {
        printf("*** ERROR - illegal state, not 'B' or 'I' \n");
        exit(-1);
      }
    }

    // If FEOF then break
    if (feof(stdin)) break;
  }
}