/// <summary>
/// Given an scriptural month number and a year in which it occurs, this method returns
/// the equivalent scriptural month number.
/// </summary>
/// <remarks>
/// No validation is performed in this method: an input month number of 13 in a non-leap-year
/// will return a result of 7.
/// </remarks>
/// <param name="year">Year during which the month occurs.</param>
/// <param name="month">Civil month number.</param>
/// <returns>The scriptural month number.</returns>
internal static int ScripturalToCivil(int year, int month)
{
if (month >= 7)
{
return(month - 6);
}
return(HebrewScripturalCalculator.IsLeapYear(year) ? month + 7 : month + 6);
}
/// <summary>
/// Given a civil month number and a year in which it occurs, this method returns
/// the equivalent scriptural month number.
/// </summary>
/// <remarks>
/// No validation is performed in this method: an input month number of 13 in a non-leap-year
/// will return a result of 7.
/// </remarks>
/// <param name="year">Year during which the month occurs.</param>
/// <param name="month">Civil month number.</param>
/// <returns>The scriptural month number.</returns>
internal static int CivilToScriptural(int year, int month)
{
if (month < 7)
{
return(month + 6);
}
bool leapYear = HebrewScripturalCalculator.IsLeapYear(year);
if (month == 7) // Adar II (13) or Nisan (1) depending on whether it's a leap year.
{
return(leapYear ? 13 : 1);
}
return(leapYear ? month - 7 : month - 6);
}
