How can I convert this C Calendaer Code into a Objective-C syntax and have it work with matrixes

Posted by Alec Niemy on Stack Overflow See other posts from Stack Overflow or by Alec Niemy
Published on 2010-05-20T14:47:21Z Indexed on 2010/05/20 14:50 UTC
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#define TRUE    1
#define FALSE   0

int days_in_month[]={0,31,28,31,30,31,30,31,31,30,31,30,31};
char *months[]=
{
    " ",
    "\n\n\nJanuary",
    "\n\n\nFebruary",
    "\n\n\nMarch",
    "\n\n\nApril",
    "\n\n\nMay",
    "\n\n\nJune",
    "\n\n\nJuly",
    "\n\n\nAugust",
    "\n\n\nSeptember",
    "\n\n\nOctober",
    "\n\n\nNovember",
    "\n\n\nDecember"
};


int inputyear(void)
{
    int year;

    printf("Please enter a year (example: 1999) : ");
    scanf("%d", &year);
    return year;
}

int determinedaycode(int year)
{
    int daycode;
    int d1, d2, d3;

    d1 = (year - 1.)/ 4.0;
    d2 = (year - 1.)/ 100.;
    d3 = (year - 1.)/ 400.;
    daycode = (year + d1 - d2 + d3) %7;
    return daycode;
}


int determineleapyear(int year)
{
    if(year% 4 == FALSE && year%100 != FALSE || year%400 == FALSE)
    {
        days_in_month[2] = 29;
        return TRUE;
    }
    else
    {
        days_in_month[2] = 28;
        return FALSE;
    }
}

void calendar(int year, int daycode)
{
    int month, day;
    for ( month = 1; month <= 12; month++ )
    {
        printf("%s", months[month]);
        printf("\n\nSun  Mon  Tue  Wed  Thu  Fri  Sat\n" );

        // Correct the position for the first date
        for ( day = 1; day <= 1 + daycode * 5; day++ )
        {
            printf(" ");
        }

        // Print all the dates for one month
        for ( day = 1; day <= days_in_month[month]; day++ )
        {
            printf("%2d", day );

            // Is day before Sat? Else start next line Sun.
            if ( ( day + daycode ) % 7 > 0 )
                printf("   " );
            else
                printf("\n " );
        }
        // Set position for next month
        daycode = ( daycode + days_in_month[month] ) % 7;
    }
}


int main(void)
{
    int year, daycode, leapyear;

    year = inputyear();
    daycode = determinedaycode(year);
    determineleapyear(year);
    calendar(year, daycode);
    printf("\n");
}

This code generates a calendar of the inputed year in the terminal. my question is how can i convert this into a Objective-C syntax instead of this C syntax. im sure this is simple process but im quite of a novice to objective - c and i need it for a cocoa project. this code outputs the calendar as a continuously series of strings until the last month hits. soo instead of creating the calendar in the terminal how can i input the calendar a series of NSMatrixes depend on the inputed year.

hope somone can help me with this thanks or every helps (you be in the credits of the finished program) :) (the calendar is just a small part of the program i making and it is one of the important parts!!)

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