/* File: mycal7.c

   Step 7 in writing my version of the calendar program.  
   This version is compiled seperately from functions taken
   from the textbook's calendar program. 
*/


#include <stdio.h>
#include "genlib.h"
#include "simpio.h"

#include "calendar.h"

main() {
  int year, month, i ;
  int start, this_month_days ;

  /* get year from user */
  printf("year =? ") ;
  year = GetInteger() ;
  printf("\n") ;

  /* January 1900, starts on Monday */
  start = 1 ;
  for (i = 1900; i < year ; i++) {
     start = AddDay(start, YearDays(i)) ;
  }

  /* Print a calendar for year month. */
  for (month = 1 ; month <= 12 ; month++) {
      printf("%s %d\n", MonthName(month), year) ;
      printf("  S  M Tu  W Th  F  S\n") ;
      this_month_days = MonthDays(month, year) ;
      PrintOneMonth(start, this_month_days) ;
      printf("\n") ;
      start = AddDay(start, this_month_days) ;
  }
}