Class: When::CalendarTypes::Christian

Inherits:
TM::Calendar show all
Defined in:
lib/when_exe/region/christian.rb

Overview

Christian Base Calendar

Direct Known Subclasses

Gregorian, Julian

Constant Summary

Constants included from When::Coordinates

When::Coordinates::Bahai, When::Coordinates::CommonResidue, When::Coordinates::DefaultDateIndices, When::Coordinates::DefaultDayIndex, When::Coordinates::DefaultTimeIndices, When::Coordinates::IndianCities, When::Coordinates::Javanese, When::Coordinates::MATCH, When::Coordinates::Mayan, When::Coordinates::PERIOD, When::Coordinates::PERIOD_NAME, When::Coordinates::PRECISION, When::Coordinates::PRECISION_NAME, When::Coordinates::Tibetan, When::Coordinates::VALUE, When::Coordinates::Yi

Constants included from Parts::Resource

Parts::Resource::LabelProperty

Instance Attribute Summary

Attributes inherited from TM::Calendar

#reference_frame, #time_basis

Attributes included from TimeStandard::TimeBasis

#_time_basis

Attributes inherited from TM::ReferenceSystem

#domain_of_validity, #position

Attributes inherited from BasicTypes::Object

#label

Attributes included from Parts::Resource

#_pool, #child, #keys, #locale, #namespace

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from TM::Calendar

#_new_month_, _setup_, #_to_month_number_, #date_trans, #jul_trans, #rate_of_clock, #time_standard, #to_cal_date, #to_julian_date, #to_universal_time

Methods included from TimeStandard::TimeBasis

#_normalize_time_basis

Methods included from When::Coordinates

to_deg, to_deg_225, to_dms

Methods inherited from TM::ReferenceSystem

#domain, #name

Methods included from Parts::Resource

#[], #^, _decode, _encode, _extract_prefix, _instance, _instantiate, _parse, _path_with_prefix, _replace_tags, _setup_, _setup_info, _simplify_path, base_uri, #each, #enum_for, #hierarchy, #include?, #included?, #iri, #leaf?, #m17n, #map, #next, #parent, #prev, #registered?, root_dir

Methods included from Parts::Resource::Pool

#[], #[]=, #_pool, #_setup_, #pool_keys

Methods included from Parts::Resource::Synchronize

#synchronize

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class When::Parts::Resource

Class Method Details

._default_start(date) ⇒ Object

::Date オブジェクトに対応する暦法名 (require ‘Date’ されていることの保証は呼び出し側)



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# File 'lib/when_exe/region/christian.rb', line 45

def self._default_start(date)
  case date.start
  when ::Date::JULIAN    ; 'Julian'
  when ::Date::GREGORIAN ; 'Gregorian'
  else                   ; "Civil?reform_jdn=#{date.start}"
  end
end

Instance Method Details

#_coordinates_to_number(y, m, d) ⇒ Integer

年月日 -> 通日

Parameters:

  • y (Numeric) —

    年

  • m (Integer) —

    月 (0 始まり)

  • d (Integer) —

    日 (0 始まり)

Returns:

  • (Integer) —

    通日



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# File 'lib/when_exe/region/christian.rb', line 61

def _coordinates_to_number(y,m,d)
  m = (+m + 10) % 12
  y =  +y + 4716 - m / 10
  a = (1461*y.to_i    ).div(4)
  b = ( 153*m.to_i + 2).div(5)
  return a + b + (+d) - 1401
end

#_length(date) ⇒ Integer #_length(date) ⇒ Integer

暦要素数

Overloads:

  • #_length(date) ⇒ Integer

    Returns 12 (=その年の月数).

    Parameters:

    • date (Array<Integer>) —

      ( 年 )

    Returns:

    • (Integer) —

      12 (=その年の月数)

  • #_length(date) ⇒ Integer
    Note:

    月は 0 始まりの通番

    Returns その年月の日数.

    Parameters:

    • date (Array<Integer>) —

      ( 年, 月 )

    Returns:

    • (Integer) —

      その年月の日数



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# File 'lib/when_exe/region/christian.rb', line 100

def _length(date)
  yy, mm = date
  return super unless(mm)
  return ((yy % 4) == 0) ? 29 : 28 if (mm == 1)
  return (((((mm + 10) % 12) % 5) % 2) == 0) ? 31 : 30
end

#_number_to_coordinates(jdn) ⇒ Array<Integer>

通日 - > 年月日

Parameters:

  • jdn (Integer) —

    通日

Returns:

  • (Array<Integer>) —

    ( y, m, d )

    y 年
    m 月 (0 始まり)
    d 日 (0 始まり) 


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# File 'lib/when_exe/region/christian.rb', line 78

def _number_to_coordinates(jdn)
  j    =   jdn.to_i + 1401
  y, t =  (4*j + 3).divmod(1461)
  t    =   t.div(4)
  m, d =  (5*t + 2).divmod(153)
  d    =   d.div(5)
  m    =  (m+2) % 12
  y    =  y - 4716 + (13-m) / 12
  return [y,m,d]
end