Class: When::TM::TemporalPosition

Inherits:
Object
  • Object
show all
Extended by:
When, Coordinates
Includes:
Comparable, When, Coordinates, Parts::Resource, IndeterminateValue, Conversion
Defined in:
lib/when_exe/tmposition.rb,
lib/when_exe/inspect.rb

Overview

「時間位置」の基底クラス

see gml schema

Direct Known Subclasses

CalDate, ClockTime, Coordinate, OrdinalPosition

Defined Under Namespace

Modules: Conversion

Constant Summary collapse

AMPM = 
['AM', 'PM'].map {|half| When::Parts::Resource._instance('_m:CalendarFormats::' + half)}
Format = 
{
  'a' => ['%s',   'a'], 'A' => ['%s',   'A'], 'b' => ['%s',   'b'], 'B' => ['%s',   'B'],
  'c' => When::Parts::Resource._instance('_m:CalendarFormats::DateTime'),
  'C' => ['%02d', 'C'], 'd' => ['%02d', 'd'], 'D' => '%m/%d/%y',    'e' => ['%2d',  'd'],
  'E' => ['%s',   'E'], 'F' => ['%s',   'F'], 'G' => ['%d',   'G'], 'g' => ['%02d', 'g'],
  'h' => '%b',          'H' => ['%02d', 'H'], 'I' => ['%02d', 'I'], 'j' => ['%03d', 'j'],
  'k' => ['%2d',  'H'], 'l' => ['%2d',  'I'], 'm' => ['%02d', 'm'], 'M' => ['%02d', 'M'],
  'n' => '\n',          'p' => ['%s',   'p'], 'P' => ['%s',   'P'], 'q' => ['%01d', 'd'],
  'r' => '%I:%M:%S %p', 'R' => '%H:%M',       's' => ['%d',   's'], 'S' => ['%02d', 'S'],
  't' => '\t',          'T' => '%H:%M:%S',    'u' => ['%d',   'u'], 'U' => ['%02d', 'U'],
  'V' => ['%02d', 'V'], 'w' => ['%d',   'w'], 'W' => ['%02d', 'W'],
  'x' => When::Parts::Resource._instance('_m:CalendarFormats::Date'),
  'X' => When::Parts::Resource._instance('_m:CalendarFormats::Time'),
  'y' => ['%02d', 'y'], 'Y' => ['%4d',  'Y'], 'z' => ['%s',   'z'], 'Z' => ['%s',   'Z'],
  '+' => '%a %b %d %T %z %Y'
}

Constants included from Coordinates

Coordinates::Bahai, Coordinates::Chinese, Coordinates::Common, Coordinates::DefaultDateIndices, Coordinates::DefaultDayIndex, Coordinates::DefaultTimeIndices, Coordinates::Indian, Coordinates::Iranian, Coordinates::Javanese, Coordinates::LocationTable, Coordinates::MATCH, Coordinates::Mayan, Coordinates::PERIOD, Coordinates::PERIOD_NAME, Coordinates::PRECISION, Coordinates::PRECISION_NAME, Coordinates::Russian, Coordinates::Tibetan, Coordinates::VALUE, Coordinates::Yi

Constants included from When

AUTHOR, CENTURY, COPYRIGHT, DAY, DECADE, EUCJP, HOUR, MINUTE, MONTH, MinusInfinity, Month, P1D, P1M, P1W, P1Y, PT1H, PT1M, PT1S, PlusInfinity, RootDir, SECOND, STRING, SYSTEM, SourceURI, When::TimeValue, UTF8, VERSION, W31J, WEEK, Week, YEAR, YEARS

Constants included from Namespace

Namespace::DC, Namespace::DCQ, Namespace::DCT, Namespace::FOAF, Namespace::OWL, Namespace::RDF, Namespace::RDFC, Namespace::RDFS, Namespace::RSS, Namespace::XSD

Constants included from IndeterminateValue

IndeterminateValue::After, IndeterminateValue::Before, IndeterminateValue::I, IndeterminateValue::Max, IndeterminateValue::Min, IndeterminateValue::Now, IndeterminateValue::S, IndeterminateValue::Unknown

Instance Attribute Summary collapse

Attributes included from Parts::Resource

#child, #keys, #locale, #namespace

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Coordinates

to_deg, to_deg_225, to_dms

Methods included from When

Border, Calendar, CalendarEra, CalendarNote, Clock, Duration, Index, Location, M17n, MonthName, Pair, Residue, Resource, TemporalPosition, Wikipedia, _const_missing, at, client, column, const_missing, date_or_era, era, free_conv, m17n, now, server, strptime, today, when?, where?

Methods included from Conversion

#julian_date, #tm_pos

Methods included from Parts::Resource

base_uri, #each, #enum_for, #hierarchy, #included?, #iri, #leaf?, #m17n, #map, #parent, #registered?, root_dir

Methods included from Parts::Resource::Pool

#[]=, #_setup_

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(name, *args, &block) ⇒ Object (private)

Note:

When::TM::TemporalPosition で定義されていないメソッドは 処理を @frame(class: When::TM::Calendar or When::TM::Clock) または to_date_or_datetime(class: ::Date or ::DateTime) に委譲する

その他のメソッド



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# File 'lib/when_exe/tmposition.rb', line 1225

def method_missing(name, *args, &block)
  
  return _method_missing(name, *args, &block) if When::Parts::MethodCash::Escape.key?(name)
  if DateTimeInstanceMethods.include?(name) && ! @frame.respond_to?(name)
    self.class.module_eval %Q{
      def #{name}(*args, &block)
        self.to_date_or_datetime.send("#{name}", *args, &block)
      end
    } unless When::Parts::MethodCash.escape(name)
    self.to_date_or_datetime.send(name, *args, &block)
  else
    self.class.module_eval %Q{
      def #{name}(*args, &block)
        @frame.send("#{name}", self, *args, &block)
      end
    } unless When::Parts::MethodCash.escape(name)
    @frame.send(name, self, *args, &block)
  end
end

Instance Attribute Details

#events ⇒ Array<When::Parts::Enumerator>

この時間位置と関連付けられたイベント - additional attribute

Returns:



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# File 'lib/when_exe/tmposition.rb', line 232

def events
  @events
end

#frame ⇒ When::TM::ReferenceSystem

この時間位置と関連付けられた時間参照系 (relation - Reference)

The time reference system associated with the temporal position being described

Returns:



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# File 'lib/when_exe/tmposition.rb', line 226

def frame
  @frame
end

#indeterminated_position ⇒ When::TM::IndeterminateValue (readonly) Also known as: indeterminatedPosition

この時間位置の意味づけ

Returns:



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# File 'lib/when_exe/tmposition.rb', line 217

def indeterminated_position
  @indeterminated_position
end

#location ⇒ When::Coordinates::Spatial

その他の属性 - additional attribute

Returns:



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# File 'lib/when_exe/tmposition.rb', line 265

def location
  @location
end

#options ⇒ Hash (readonly)

その他の属性 - additional attribute

Returns:

  • (Hash) —

    { String=>Object }



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# File 'lib/when_exe/tmposition.rb', line 247

def options
  @options
end

#precision ⇒ Numeric

Note:

precision より resolution の方が分解能の意味にふさわしいが ISO19108 で別の意味に用いられているため resolution とした。

この時間位置の分解能 - additional attribute

Returns:



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# File 'lib/when_exe/tmposition.rb', line 241

def precision
  @precision
end

#query ⇒ Hash

その他の属性 - additional attribute

Returns:

  • (Hash) —

    { String=>When::BasicTypes::M17n }



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# File 'lib/when_exe/tmposition.rb', line 259

def query
  @query
end

#trans ⇒ Hash

その他の属性 - additional attribute

Returns:

  • (Hash) —

    { String=>Object }



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# File 'lib/when_exe/tmposition.rb', line 253

def trans
  @trans
end

Class Method Details

._instance(specification, options = {}) ⇒ When::TM::TemporalPosition, ...

Note:

options の中身は本メソッドによって更新されることがある。

Note:

:tz は 'Asia/Tokyo'など時間帯を表す文字列をキーにして、登録済みのWhen::V::Timezone, When::Parts::Timezoneを検索して使用する。 :clock はWhen::Parts::Timezone::Baseオブジェクトをそのまま使用するか '+09:00'などの文字列をWhen::TM::Clock化して使用する。 :tz の方が :clock よりも優先される。

Temporal Objetct の生成

Parameters:

  • specification (String) —

    When.exe Standard Representation

  • options (Hash) (defaults to: {}) —

    下記の通り

Options Hash (options):

  • :frame (When::TM::ReferenceSystem) —

    暦法の指定

  • :clock (When::Parts::Timezone::Base, String) —

    時法の指定

  • :tz (String) —

    時法の指定(時間帯を指定する場合 :clock の替わりに用いることができる)

  • :abbr (Array<Numeric>) —

    ISO8601上位省略形式のためのデフォルト日付(省略時 指定なし)

  • :extra_year_digits (Integer) —

    ISO8601拡大表記のための年の構成要素拡大桁数(省略時 1桁)

  • :ordinal_date_digits (Integer) —

    ISO8601拡大表記の年内通日の桁数(省略時 3桁)

  • :wkst (String) —

    ISO8601週日形式のための暦週開始曜日(省略時 'MO')

  • :precision (Integer) —

    生成するオブジェクトの分解能

  • :time_standard (When::TimeStandard::TimeStandard) —

    時刻系の指定(省略時 When::TimeStandard::UnversalTime)

  • :location (When::Ephemeris::Spatial) —

    観測地の指定(省略時 指定なし)

  • :era_name (String) —

    暦年代

  • :trans (Hash) —

    暦年代の上下限

    • :count => 条件に合致する暦年代のうち何番目を採用するか

    • :lower => 暦年代適用の下限

      true            - epoch_of_use の始め(省略時)
:reference_date - 参照事象の日付

    • :upper => 暦年代適用の上限

      true            - epoch_of_use の終わり(省略時)
:reference_date - 参照事象の日付
  • :query (Hash) —

    暦年代の絞込み条件

    • :area => area による暦年代絞込み

    • :period => period による暦年代絞込み

    • :name => name による暦年代絞込み(epoch の attribute使用可)

Returns:



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# File 'lib/when_exe/tmposition.rb', line 310

def _instance(specification, options={})

  # prefix - RFC 5545 Options
  iso8601form = When::Parts::Resource::ContentLine.extract_rfc5545_Property(specification, options).
                gsub(When::Parts::Resource::IRIDecode) {|c| When::Parts::Resource::IRIDecodeTable[c]}

  # delayed_options
  delayed_options = {}

  # Frame specifications - 暦法指定の取り出し
  if iso8601form =~ /\A(.*[^\d]|.+=[^:]+)\((([-+*&%@!>=<?\d.A-Z:]|\{.+?\})+)\)\z/
    frame, iso8601form = $~[1..2]
    frame.sub!(/_+\z/, '')
  else
    iso8601form, frame, *rest = iso8601form.split(/(?:\^|%5E){1,2}/i)
    delayed_options[:frame] = rest.map{|calendar| When.Resource(calendar, '_c:')} unless rest.empty?
  end

  # add frame to options
  options = options.merge({:frame=>When.Resource(frame, '_c:')}) if frame

  return _instance_element(iso8601form, options, delayed_options) unless iso8601form =~ /\A(.+?)(\.{2,3})(.+)\z/
  first, separater, last = $1, $2, $3
  When::Events::Range.new(_instance_element(first, options.dup, delayed_options.dup),
                          _instance_element(last,  options.dup, delayed_options.dup), separater == '...')
end

._instance_element(iso8601form, options, delayed_options) ⇒ Object 



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# File 'lib/when_exe/tmposition.rb', line 337

def _instance_element(iso8601form, options, delayed_options)

  # indeterminateValue
  if (iso8601form.sub!(/\/After\z|\ABefore\/|\ANow\z|\AUnknown\z|\A[-+]Infinity\z/i, ''))
    options[:indeterminated_position] = When::TimeValue::S[$&.sub('/','')]
    case options[:indeterminated_position]
    when When::TimeValue::Now,
         When::TimeValue::Unknown,
         When::TimeValue::Max,
         When::TimeValue::Min
      return self.new(self._options(options))
    end
  end

  # each specification - '/' で区切られた個々の要素の取り出し
  splitted = iso8601form.gsub(/\{.+?\}/) {|m| m.gsub('/', When::Locale::NUL)}.split('/').map {|m| m.gsub(When::Locale::NUL, '/')}
  if (splitted[0] =~ /\AR(\d+)?(P.+)?\z/)
    repeat = $1 ? $1.to_i : true
    delayed_options[:duration] = When.Duration($2) if $2
    splitted.shift
  end
  case splitted.length
  when 1
  when 2
    if (splitted[0] !~ /\A[-+]?P/ && splitted[1] =~ /\A\d/ && splitted[1].length < splitted[0].length)
      splitted[1] = splitted[0][0..(splitted[0].length-splitted[1].length-1)] + splitted[1]
    end
  else
    raise ArgumentError, "Irregal ISO8601 Format: #{iso8601form}"
  end
  options = self._options(options)
  element = splitted.map { |v|
    d, r, z2 = _date_time_or_duration(v, options.dup)
    delayed_options[:residue] = r  if r
    delayed_options[:clock  ] = z2 if z2
    d
  }

  # 繰り返しの起点と間隔
  base      = element[0].kind_of?(Duration) ? element[1] : element[0]
  frame_len = (base.respond_to?(:frame) ? base.frame : When::Gregorian).indices.length
  duration  = _duration_for_repeat(element)

  # 意味のある繰り返しのない場合
  has_residue_options = delayed_options[:residue] && (delayed_options[:residue][frame_len-2].kind_of?(String) ||
                                                      delayed_options[:residue][frame_len].kind_of?(String))
  case repeat
  when nil ; return _instance_without_repeat(element).apply_delayed_options(delayed_options) unless has_residue_options
  when 0   ; return []
  when Integer
    return [element[0]] * repeat if element.length == 1 && element[0].kind_of?(When::TM::Duration) # JIS X0301 5.6.3
    raise ArgumentError, "Duration or TemporalPosition missing" unless element[1] || has_residue_options
  end

  # 繰り返しのある場合
  if repeat.kind_of?(Integer) && !has_residue_options

    # iCalendar の機能を使用しない
    result = []
    seed   = base
    guard  = (base - When::V::Event.default_until)...(base + When::V::Event.default_until)
    count = 0
    while result.length < repeat && seed >= guard.first && seed < guard.last
      applied = seed.apply_delayed_options(delayed_options)
      applied = When::Parts::GeometricComplex.new(applied, delayed_options[:duration]) if delayed_options[:duration]
      result << applied if applied
      count += 1
      seed = base + duration * count
    end
    result.reverse! if duration.sign < 0
    return result

  else

    return duration.set_repeat(true) unless base

    # iCalendar の機能を使用する
    should_limit = base.precision == When::MONTH &&
                 !(delayed_options[:residue] && delayed_options[:residue][frame_len-2])
    iterator = When::V::Event.iterator_for_ISO8601(base, duration, delayed_options)
    case repeat
    when nil     ; (result=iterator.succ).precision > base.precision && should_limit && base != result ? nil : result
    when Integer ; (0...repeat).to_a.map {iterator.succ}
    else         ; iterator
    end
  end
end

._setup_(format = nil) ⇒ void

Note:

format の指定がない場合、format は Format(モジュール定数)と解釈する

This method returns an undefined value.

When::TM::TemporalPosition Class のグローバルな設定を行う

Parameters:

  • format (Hash) (defaults to: nil) —

    strftime で用いる記号の定義



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# File 'lib/when_exe/inspect.rb', line 329

def _setup_(format=nil)
  @format = format ? Format.merge(format) : Format
end

._setup_info ⇒ Hash

設定情報を取得する

Returns:

  • (Hash) —

    設定情報



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# File 'lib/when_exe/inspect.rb', line 337

def _setup_info
  {:format => format}
end

._temporal_position(*args) ⇒ Object

When::TM::TemporalPosition の生成

See Also:



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# File 'lib/when_exe/tmposition.rb', line 430

def _temporal_position(*args)
  # 引数の解釈
  options  = args[-1].kind_of?(Hash) ? args.pop.dup : {}
  validate = options.delete(:invalid)
  options  = TemporalPosition._options(options)
  options[:frame]  ||= 'Gregorian'
  options[:frame]    = When.Resource(options[:frame], '_c:') if options[:frame].kind_of?(String)
  frame_len = options[:frame].indices.length
  case args[0]
  when String
    options[:era_name]    = When::EncodingConversion.to_internal_encoding(args.shift)
  when Array
    options[:era_name]    = args.shift
    options[:era_name][0] = When::EncodingConversion.to_internal_encoding(options[:era_name][0])
  end

  # 時間位置の生成
  res   = []
  abbrs = Array(options[:abbr])
  date  = Array.new(frame_len-1) {
    element = args.shift
    abbr    = abbrs.shift
    res    << element.to('year') if element.kind_of?(When::Coordinates::Residue)
    element.kind_of?(Numeric) ? element : (abbr || 1)
  }
  date += Array.new(2) {
    element = args.shift
    abbr    = abbrs.shift
    res    << element.to('day') if element.kind_of?(When::Coordinates::Residue)
    case element
    when Numeric ; element
    when nil     ; abbr
    else         ; nil
    end
  }
  parse = options.delete(:parse)
  if parse && parse[:residue] && parse[:residue][frame_len]
    res << parse[:residue][frame_len]
  end
  if args.length > 0
    options[:clock] ||= Clock.local_time
    options[:clock]   = When.Clock(options[:clock])
    time = Array.new(options[:clock].indices.length) {args.shift}
    position = DateAndTime.new(date, time.unshift(0), options)
  else
    position = CalDate.new(date, options)
  end
  res.each do |residue|
    position  = position.succ if residue.carry < 0
    position &= residue
  end

  return position unless [:raise, :check].include?(validate)

  # 時間位置の存在確認
  date[0] = -date[0] if position.calendar_era_props && position.calendar_era_reverse # 紀元前
  date.each_index do |i|
    break unless date[i]
    next if When::Coordinates::Pair._force_pair(date[i]) == When::Coordinates::Pair._force_pair(position.cal_date[i])
    return nil if validate == :check
    raise ArgumentError, "Specified date not found: #{date}"
  end
  return position unless time
  time.each_index do |i|
    break unless time[i]
    next if When::Coordinates::Pair._force_pair(time[i]) == When::Coordinates::Pair._force_pair(position.clk_time.clk_time[i])
    return nil if validate == :check
    raise ArgumentError, "Specified time not found: #{time}"
  end
  return position
end

.format ⇒ Object

strftime で用いる書式のハッシュ



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# File 'lib/when_exe/inspect.rb', line 342

def format
  @format ||= Format
end

Instance Method Details

#+(other) ⇒ When::TM::TemporalPosition

加算

Parameters:

  • other (Numeric, When::TM::Duration)

Returns:



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# File 'lib/when_exe/tmposition.rb', line 837

def +(other)
  case other
  when Integer  ; return self + PeriodDuration.new(other, When::DAY)
  when Numeric  ; return self + IntervalLength.new(other, 'day')
  when Duration ; begin other = other.set_repeat(false); return other.enum_for(self+other, :forward) end if other.repeat
  when Array    ; return other.map {|o| self + o}
  else          ; raise TypeError, "The right operand should be Numeric or Duration"
  end
  return _plus(other) if other.kind_of?(PeriodDuration)
  options = self._attr
  time    = dynamical_time + other.duration
  @frame.kind_of?(Calendar) ? @frame.jul_trans(JulianDate.dynamical_time(time, {:time_standard=>options[:time_standard]}), options) :
                                               JulianDate.dynamical_time(time,  options)
rescue RangeError
  (@frame ^ self) + other
end

#+@ ⇒ Float

ユリウス日時(実数)

Returns:

  • (Float) —

    dynamical time での経過日数を, ユリウス日と1970-01-01T00:00:00TTで時計あわせしたもの



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# File 'lib/when_exe/tmposition.rb', line 766

def +@
  JulianDate._t_to_d(dynamical_time)
end

#-(other) ⇒ When::TM::TemporalPosition, When::TM::Duration

減算

Parameters:

Returns:

  • (When::TM::TemporalPosition) —

    if other is a Numeric or When::TM::Duration

  • (When::TM::Duration) —

    if other is a When::TM::TemporalPosition



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# File 'lib/when_exe/tmposition.rb', line 861

def -(other)
  case other
  when TimeValue; return self.time_standard.rate_of_clock == other.time_standard.rate_of_clock && [@precision, other.precision].min <= When::DAY ?
                    PeriodDuration.new(self.to_i - other.to_i, When::DAY) :
                    IntervalLength.new((self.dynamical_time - other.dynamical_time) / Duration::SECOND, 'second')
  when Integer  ; return self - PeriodDuration.new(other, When::DAY)
  when Numeric  ; return self - IntervalLength.new(other, 'day')
  when Duration ; begin other = other.set_repeat(false); return other.enum_for(self-other, :reverse) end if other.repeat
  when Array    ; return other.map {|o| self - o}
  else          ; raise TypeError, "The right operand should be Numeric, Duration or TemporalPosition"
  end
  return _plus(-other) if other.kind_of?(PeriodDuration)
  options = self._attr
  time    = dynamical_time - other.duration
  @frame.kind_of?(Calendar) ? @frame.jul_trans(JulianDate.dynamical_time(time, {:time_standard=>options[:time_standard]}), options) :
                                               JulianDate.dynamical_time(time,  options)
rescue RangeError
  (@frame ^ self) - other
end

#<=>(other) ⇒ Integer

大小比較

Parameters:

  • other (When::TM::TemporalPosition) —

    チェックされる日時

  • other (Numeric) —

    チェックされる日時の universal time(self と同じtime_standardとみなす)

Returns:

  • (Integer) —

    (-1, 0, 1)

    分解能の低い方にあわせて比較を行う

    Ex. when?('2011-03') <=> when?('2011-03-10') -> 0



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# File 'lib/when_exe/tmposition.rb', line 961

def <=>(other)
  other = other.first if other.kind_of?(Range)
  return universal_time <=> other unless other.respond_to?(:indeterminated_position)

  [self.indeterminated_position, other.indeterminated_position].each do |position|
    prec = SYSTEM if [TimeValue::Min, TimeValue::Max].include?(position)
  end
  prec   = [self.precision, other.precision].min unless prec

  case prec
  when DAY    ; return self.to_i <=> other.to_i
  when SYSTEM ; return TemporalPosition._verify(self, other)
  end

  if prec < DAY && respond_to?(:most_significant_coordinate) &&
             other.respond_to?(:most_significant_coordinate) && @frame.equal?(other.frame)
    self_year  = most_significant_coordinate
    other_year = other.most_significant_coordinate
    if @cal_date.length + prec == 1
      self_year  *= 1
      other_year *= 1
    end
    result = self_year <=> other_year
    return result unless result == 0 && @cal_date.length + prec > 1
    (@cal_date.length + prec - 2).times do |i|
      result = @cal_date[i+1] <=> other.cal_date[i+1]
      return result unless result == 0
    end
    @cal_date[prec - 1] <=> other.cal_date[prec - 1]
  elsif prec < DAY && precision < other.precision
    return +1 if other.to_i <  self.to_i
    return -1 if other.to_i >= succ.to_i
    return  0
  else
    source = (prec >= self.precision ) ? self  : self.floor(prec)
    target = (prec >= other.precision) ? other : other.floor(prec)
    return source.to_i <=> target.to_i if prec <= DAY
    TemporalPosition._verify(source, target)
  end
end

#==(other) ⇒ Boolean

オブジェクトの同値

Parameters:

  • other (比較先)

Returns:

  • (Boolean) —
    true - 同値
    false - 非同値 


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# File 'lib/when_exe/tmposition.rb', line 944

def ==(other)
  (self <=> other) == 0
rescue
  false
end

#[](index) ⇒ Numeric

要素の参照

Parameters:

  • index (Integer, String) —

    参照する要素の指定

Returns:



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# File 'lib/when_exe/tmposition.rb', line 826

def [](index)
  return value(index) if index.kind_of?(String) || !index.respond_to?(:inject)
  index.inject([]) {|list, i| list << value(i) }
end

#^(other, leaf = true, &block) ⇒ Array of (element^self) for all When::Parts::Resource registered elements, ...

条件を満たすオブジェクトの抽出

Parameters:

Returns:

  • (Array of (element^self) for all When::Parts::Resource registered elements) —

    (If other is Module)

  • (Array of (self^element) for elemnt of other which belong to the specified module or class) —

    (If other is [Array])

  • (Enumerator which generates temporal position sequence begins from self with the specified duration) —

    (If other is [When::TM::Duration])

  • (Array of temporal position using the specified calendar as a frame) —

    (If other is [When::TM::Calendar])

  • (Array of temporal position using the specified calendar era as a calendarEraName) —

    (If other is [When::TM::CalendarEra])



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# File 'lib/when_exe/tmposition.rb', line 1063

def ^(other, leaf=true, &block)
  scan(other, leaf, &block)
end

#_notes(options = {}) ⇒ Array<Array<Hash{:note=>note, :value=>value}>>

Note:

When::TM::TemporalPosition の場合、events に暦注名の入ったその暦注に該当する日付である。 (例) Christian クラス で easter を計算した場合、当該年の復活祭の日付オブジェクトが返る。 暦注サブクラスの場合、要素が増えたり、:note の暦注要素の型が変わったりすることがある。

時間位置オブジェクトの暦注を取得

Parameters:

  • options (String) (defaults to: {}) —

    { :notes => String } という Hash の指定と等価

  • options (Integer) (defaults to: {}) —

    { :indices => Integer } という Hash の指定と等価

  • options (Hash) (defaults to: {}) —

    下記のとおり

Options Hash (options):

Returns:

  • (Array<Array<Hash{:note=>note, :value=>value}>>) —
    note [String, When::BasicTypes::M17n, When::Coordinates::Residue

    暦注名 ]

    value [String, When::BasicTypes::M17n, When::Coordinates::Residue, When::TM::TemporalPosition

    暦注の値 ]



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# File 'lib/when_exe/inspect.rb', line 628

def _notes(options={})
  _calendar_note(options).notes(self, options)
end

#_to_h(options = {}) ⇒ Hash

時間位置オブジェクトの内容を Hash 化

Parameters:

  • options (String) (defaults to: {}) —

    { :notes => String } という Hash の指定と等価

  • options (Integer) (defaults to: {}) —

    { :indices => Integer } という Hash の指定と等価

  • options (Hash) (defaults to: {}) —

    下記のとおり

Options Hash (options):

Returns:

  • (Hash) —

    • :sdn 日の通し番号 - ユリウス通日(Integer)

    • :calendar calendar_name の結果 - Array<暦法または暦年代(, 付属情報..)>

    • :notes Hash (の Array (の Array)) - _notes(options)

    clock が定義されている場合、さらに下記も出力する

    • :clock 時計(When::Parts::Timezone::Base)

    • :clk_time to_clock_time の結果 - ( 日, 時, 分, 秒 )

    • :dynamical dynamical_time / 秒

    • :universal universal_time / 秒



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# File 'lib/when_exe/inspect.rb', line 694

def _to_h(options={})
  hash = super.update({
    :sdn      => to_i,
    :calendar => calendar_name,
    :notes    => _notes(options)
  })

  hash.update({
    :clock     => clock,
    :clk_time  => to_clock_time,
    :dynamical => dynamical_time * clock.second,
    :universal => universal_time * clock.second
  }) if clock
  hash
end

#apply_delayed_options(options) ⇒ When::TM::TemporalPosition

オブジェクト変換オプションの遅延適用

Parameters:

  • options (Hash) —

    以下の通り

Options Hash (options):

Returns:



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# File 'lib/when_exe/tmposition.rb', line 1076

def apply_delayed_options(options)
  position  = self
  frame_len = frame.indices.length
  if options[:residue]
    options[:residue].keys.sort.each do |count|
      options[:residue][count] = When.Residue(options[:residue][count]) unless options[:residue][count].kind_of?(When::Coordinates::Residue)
      residue = options[:residue][count]
      if count == frame_len - 2
        residue   = residue.to('year')
        position &= residue
      else
        upper     = position
        position  = position.succ if residue.carry < 0
        position &= residue
        return nil if self.precision == When::MONTH && !(upper == position)
      end
    end
  end
  if options[:clock]
    position = options[:clock] ^ position
  end
  if options[:frame]
    position = options[:frame].inject(position) {|p,c| c.jul_trans(p)}
  end
  position
end

#calendar_name ⇒ Array<Class>

暦法名

Returns:

  • (Array<Class>) —

    Class 暦法のクラスオブジェクト



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# File 'lib/when_exe/inspect.rb', line 360

def calendar_name
  [self.class]
end

#clock_name(prefix = true) ⇒ Array<String>

時法名

Parameters:

  • prefix (Boolean) (defaults to: true) —

    true ならIRI の先頭部分を簡約表現にする

Returns:



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# File 'lib/when_exe/inspect.rb', line 370

def clock_name(prefix=true)
  [clock.iri(prefix)]
end

#copy(options = {}) ⇒ When::TM::TemporalPosition

属性を変更したコピーを作る

Parameters:

  • options (Hash) (defaults to: {}) —

    { 属性=>属性値 }

Returns:



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# File 'lib/when_exe/tmposition.rb', line 1109

def copy(options={})
  position = self.dup
  position._copy(options)
  position
end

#dynamical_time ⇒ Numeric

外部時間

Returns:

  • (Numeric) —

    1970-01-01T00:00:00TT からの terrestrial time の経過時間 / 128秒



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# File 'lib/when_exe/tmposition.rb', line 714

def dynamical_time
  return @dynamical_time if @dynamical_time && @indeterminated_position != Now
  @dynamical_time = 
    case @indeterminated_position
    when Max ; +Float::MAX/4
    when Min ; -Float::MAX/4
    else     ; time_standard.to_dynamical_time(local_time)
    end
end

#floor(digit = DAY, precision = digit) ⇒ When::TM::TemporalPosition

下位桁の切り捨て

Parameters:

  • digit (Integer) (defaults to: DAY) —

    これより下の桁を切り捨てる(省略すると When::DAY)

  • precision (Integer) (defaults to: digit) —

    切り捨て結果の分解能

Returns:



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# File 'lib/when_exe/tmposition.rb', line 911

def floor(digit=DAY, precision=digit)
  self
end

#has_next? ⇒ Boolean

前後の日時を取得可能か?

Returns:

  • (Boolean) —
    true - 可能
    false - 不可 


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# File 'lib/when_exe/tmposition.rb', line 899

def has_next?
  When::Coordinates::PERIOD_NAME[@precision] != nil
end

#has_time? ⇒ Boolean

分解能が時刻を持つか

Returns:

  • (Boolean) 


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# File 'lib/when_exe/tmposition.rb', line 919

def has_time?
  (@precision > DAY)
end

#include?(date) ⇒ Boolean

指定の日時を含むか?

Parameters:

Returns:

  • (Boolean) —
    true - 含む
    false - 含まない 


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# File 'lib/when_exe/tmposition.rb', line 931

def include?(date)
  return false if self.precision > date.precision
  return self == date
end

#inspect ⇒ String

When::TM::TemporalPosition オブジェクトを分かりやすい文字列にして返します

Returns:



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# File 'lib/when_exe/inspect.rb', line 351

def inspect
  When::EncodingConversion.to_external_encoding(to_s)
end

#is?(event = nil, options = {}) ⇒ Boolean

指定の日時が指定イベントに該当するか?

Parameters:

  • event (String) (defaults to: nil) —

    options=:notes=>String または :notes=>String または :value=>String という指定と等価 (指定の event が存在する場合は前者、指定の notes が存在する場合は中央、しない場合は後者)

  • event (Integer) (defaults to: nil) —

    options={ :indices=> Integer } という指定と等価

  • options (Hash) (defaults to: {}) —

    下記のとおり

Options Hash (options):

Returns:

  • (Boolean) —
    true - 該当する
    false - 該当しない 


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# File 'lib/when_exe/inspect.rb', line 666

def is?(*args)
  options = args.last.kind_of?(Hash) ? args.pop.dup : {}
  note    = _calendar_note(options)
  event   = args.first || options.delete(:event) || note.event
  return note.note?(self, options) unless options.empty?
  return note.note?(self, event) unless event.to_s =~ /\A([^\d]+)/ && note.respond_to?($1.downcase)
  return note.include?(self, event)
end

#month_included(ord, wkst, opt, block) ⇒ Range, ...

Note:

引数 ord, wkst, opt はそのクラスで位置づけを判断するため、引数の順序は任意(省略も可)

含まれる月

Parameters:

  • ord (Numeric, Range) —

    月の番号(default: 今月) 今月を 0 とする月番号(Integer) または月番号の範囲(Range)

    -1 - 先月
 0 - 今月
+1 - 来月
  • wkst (String) —

    週の開始曜日(defaultはなし)

  • wkst (When::CalendarNote) —

    暦注オブジェクト

  • wkst (Array<When::CalendarNote, String>) —

    暦注オブジェクトとそのイベントメソッド名 (暦注オブジェクトは、そのIRI文字列を指定しても良い)

  • opt (Hash) —

    下記の通り

  • block (Block)

Options Hash (opt):

  • :Range (Range) —

    上位繰り返し範囲(ユリウス通日…ユリウス通日)

Returns:

  • (Range) —

    含まれる月を範囲として表現する Range (block 指定なし)

  • (Array) —

    含まれる月の各日をブロックに渡した結果の Array (block 指定あり, wkst なし)

  • (Array<Array>) —

    含まれる月の各日をブロックに渡した結果の 七曜表(block 指定あり, wkst あり)



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# File 'lib/when_exe/inspect.rb', line 439

def month_included(*args, &block)
  first, length, wkst, opt = _range(args)
  if wkst
    (first...(first+length)).map {|i|
      begun = self.floor(MONTH,DAY) + When::TM::PeriodDuration.new([0,i,0])
      ended = begun                 + P1M
      ended = ended.prev until begun.cal_date[MONTH-1] == ended.cal_date[MONTH-1]
      if ended.to_i <= begun.to_i
        ended = begun
        loop do
          succ  = ended.succ
          break unless succ.frame.equal?(begun.frame)
          ended = succ
        end
      end
      dates = [begun]
      loop do
        current = dates[-1].week_included(wkst)
        if current.last.to_i > ended.to_i
          dates[-1] = ended
          break (dates.map {|date| date.week_included(wkst, {:Range=>begun.to_i..ended.to_i}, &block)}).
                unshift(yield(begun, MONTH)).compact
        elsif wkst.kind_of?(When::Coordinates::Residue)
          dates << dates[-1] + wkst.duration
        else
          it = wkst.enum_for(dates[-1], :forward)
          begin
            date = it.next
          end while date.to_i == dates[-1].to_i
          date = date.to_cal_date unless date.instance_of?(TM::CalDate)
          dates << date
        end
      end
    }
  else
    begun = self.floor(MONTH,DAY) + When::TM::PeriodDuration.new([0, first,  0])
    ended = begun                 + When::TM::PeriodDuration.new([0, length, 0])
    loop do
      last = ended.prev
      break unless last.cal_date[MONTH-1] == ended.cal_date[MONTH-1]
      ended = last
    end
    if block_given?
      (begun...ended).map do |date|
        yield(date)
      end
    else
      begun...ended
    end
  end
end

#note?(options = {}) ⇒ Boolean

暦注の一致 or 不一致

Parameters:

  • options (String) (defaults to: {}) —

    { :notes => String } または { :value => String } という Hash の指定と等価 (指定の notes が存在する場合は前者、しない場合は後者)

  • options (Integer) (defaults to: {}) —

    { :indices => Integer } という Hash の指定と等価

  • options (Hash) (defaults to: {}) —

    下記のとおり

Options Hash (options):

Returns:

  • (Boolean) —
    true - 暦注が一致
    false - 暦注が不一致 


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# File 'lib/when_exe/inspect.rb', line 646

def note?(options={})
  _calendar_note(options).note?(self, options)
end

#notes(options = {}) ⇒ Array<Array<Hash{:note=>note, :value=>value}>>

時間位置オブジェクトの暦注を取得し value を暦注の値 (String, When::BasicTypes::M17n or When::Coordinates::Residue)とする Hash で表現

Parameters:

  • options (String) (defaults to: {}) —

    { :notes => String } という Hash の指定と等価

  • options (Integer) (defaults to: {}) —

    { :indices => Integer } という Hash の指定と等価

  • options (Hash) (defaults to: {}) —

    下記のとおり

Options Hash (options):

Returns:

  • (Array<Array<Hash{:note=>note, :value=>value}>>) —
    note [String, When::BasicTypes::M17n

    暦注名 ]

    value [String, When::BasicTypes::M17n, When::Coordinates::Residue

    暦注の値 ]



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# File 'lib/when_exe/inspect.rb', line 601

def notes(options={})
  form_options = options.kind_of?(Hash) ? options : {}
  form_options[:method] = :to_m17n unless form_options.key?(:method)
  persistence = options.delete(:persistence) if options.kind_of?(Hash)
  retrieved   = When::CalendarNote::NotesContainer.retrieve(persistence, self.to_i)
  return retrieved if retrieved
  When::CalendarNote::NotesContainer.register(_m17n_form(_notes(options), form_options), persistence, self.to_i)
end

#period ⇒ When::TM::PeriodDuration

分解能に対応する Duration

Returns:

Raises:

  • (ArgumentError) 


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# File 'lib/when_exe/tmposition.rb', line 885

def period
  return @period if @period
  period_name = When::Coordinates::PERIOD_NAME[@precision]
  raise ArgumentError, "Presicion not defined" unless period_name
  @period = When.Duration(period_name)
end

#rate_of_clock ⇒ Numeric

時間の歩度

Returns:



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# File 'lib/when_exe/tmposition.rb', line 686

def rate_of_clock
  time_standard.rate_of_clock
end

#reference_label ⇒ When::BasicTypes::M17n

参照ラベル

Returns:



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# File 'lib/when_exe/inspect.rb', line 379

def reference_label
  [When::BasicTypes::M17n.new(self.class.to_s.split(/::/)[-1])]
end

#scan(other, leaf = false, &block) ⇒ Array of (element^self) for all When::Parts::Resource registered elements, ...

条件を満たすオブジェクトの抽出

Parameters:

Returns:

  • (Array of (element^self) for all When::Parts::Resource registered elements) —

    (If other is Module)

  • (Array of (self^element) for elemnt of other which belong to the specified module or class) —

    (If other is [Array])

  • (Enumerator which generates temporal position sequence begins from self with the specified duration) —

    (If other is [When::TM::Duration])

  • (Array of temporal position using the specified calendar as a frame) —

    (If other is [When::TM::Calendar])

  • (Array of temporal position using the specified calendar era as a calendarEraName) —

    (If other is [When::TM::CalendarEra])



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# File 'lib/when_exe/tmposition.rb', line 1014

def scan(other, leaf=false, &block)
  list = []
  case other
  when Numeric, TemporalPosition, Position
    raise TypeError, "Operand should not be Numeric or (Temporal)Position"

  when Module
    objects = []
    ObjectSpace.each_object(other) do |object|
      objects << object if object.registered?
    end
    objects.each do |object|
      element = (object ^ self)
      if element && !(leaf && element.respond_to?(:leaf?) && !element.leaf?)
        list << element
        yield(element) if block_given?
      end
    end
    return list

  when Array
    return other.map {|v| scan(v, leaf, &block)}

  else
    if other.respond_to?(:_enumerator)
      enumerator = other._enumerator(self)
      return enumerator unless block_given?
      return enumerator.each(&block)
    end

    element = (other ^ self)
    if element && !(leaf && element.respond_to?(:leaf?) && !element.leaf?)
      list << element
      yield(element) if block_given?
    end
    if (other.respond_to?(:child) && other.child)
      other.child.each do |object|
        list += scan(object, leaf, &block)
      end
    end
    return list
  end
end

#strftime(format = @frame.strftime, locale = nil) ⇒ When::BasicTypes::M17n

指定の書式による多言語対応文字列化 - format で指定した書式で多言語対応文字列化する

Parameters:

  • format (When::BasicTypes::M17n) (defaults to: @frame.strftime) —

    書式

  • locale (String, Array<String>) (defaults to: nil) —

    文字列化を行う locale の指定(デフォルト : オブジェクト生成時に保持している locale すべて)

Returns:



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# File 'lib/when_exe/inspect.rb', line 717

def strftime(format=@frame.strftime, locale=nil)
  format = m17n([format]*self.keys.length, nil, nil, {:locale=>self.keys}) if format.instance_of?(String)
  format._printf([], locale) do |k, *t|
    _strftime(k, format, [''])
  end
end

#time_standard ⇒ When::TimeStandard

時刻系

Returns:



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# File 'lib/when_exe/tmposition.rb', line 674

def time_standard
  return @time_standard if @time_standard.kind_of?(When::TimeStandard)
  @time_standard ||= clock.time_standard if respond_to?(:clock) && clock
  @time_standard ||= frame.time_standard if frame
  @time_standard ||= 'UniversalTime'
  @time_standard   = When.Resource(@time_standard, '_t:')
end

#to_clock_time ⇒ When::TM::ClokTime

When::TM::ClockTime オブジェクトへの変換

Returns:

  • (When::TM::ClokTime)

Raises:

  • (TypeError) 


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# File 'lib/when_exe/tmposition.rb', line 774

def to_clock_time
  raise TypeError, "Clock not assigned" unless clock
  clk_time = clock.to_clk_time(universal_time - (to_i - JulianDate::JD19700101)*Duration::DAY)
  clk_time.clk_time[0] += to_i
  return clk_time
end

#to_date(start = _default_start, option = {}) ⇒ ::Date Also known as: to_date_or_datetime

標準ライブラリの Date オブジェクトへの変換

Parameters:

  • start (Integer) (defaults to: _default_start) —

    ::DateTime オブジェクトのグレゴリオ改暦日(ユリウス通日)

  • option (Hash) (defaults to: {}) —

    時間の歩度が1.0でない場合のための option see _instance

Returns:



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# File 'lib/when_exe/tmposition.rb', line 806

def to_date(start=_default_start, option={})
  return JulianDate.dynamical_time(dynamical_time, option).to_date unless time_standard.rate_of_clock == 1.0
  ::Date.jd(to_i, start)
end

#to_datetime(start = _default_start, option = {:frame=>When::UTC}) ⇒ ::DateTime

標準ライブラリの DateTime オブジェクトへの変換

Parameters:

  • start (Integer) (defaults to: _default_start) —

    ::DateTime オブジェクトのグレゴリオ改暦日(ユリウス通日)

  • option (Hash) (defaults to: {:frame=>When::UTC}) —

    時間の歩度が1.0でない場合のための option see _instance

Returns:

  • (::DateTime)

Raises:

  • (TypeError) 


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# File 'lib/when_exe/tmposition.rb', line 789

def to_datetime(start=_default_start, option={:frame=>When::UTC})
  return JulianDate.dynamical_time(dynamical_time, option).to_datetime unless time_standard.rate_of_clock == 1.0
  raise TypeError, "Clock not assigned" unless clock
  Rational
  offset   = Rational(-(clock.universal_time/Duration::SECOND).to_i, (Duration::DAY/Duration::SECOND).to_i)
  clk_time = clock.to_clk_time(universal_time - (to_i - JulianDate::JD19700101)*Duration::DAY).clk_time
  ::DateTime.jd(to_i, clk_time[1], clk_time[2], clk_time[3].to_i, offset, start)
end

#to_f ⇒ Float

ユリウス日時(実数)

Returns:

  • (Float) —

    universal time での経過日数を, ユリウス日と1970-01-01T00:00:00Zで時計あわせしたもの



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# File 'lib/when_exe/tmposition.rb', line 730

def to_f
  JulianDate._t_to_d(universal_time)
end

#to_i ⇒ Integer

ユリウス日(整数)

Returns:

  • (Integer) —

    -4712-01-01T12:00:00Z からの経過日数に対応する通番(当該時間帯での午前0時に1進める)



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# File 'lib/when_exe/tmposition.rb', line 740

def to_i
  sd  = universal_time
  sd -= @frame.universal_time if @frame.kind_of?(Clock)
  div, mod = sd.divmod(Duration::DAY)
  div + JulianDate::JD19700101
end

#to_m17n ⇒ When::BasicTypes::M17n

多言語対応文字列化 - When.exe Standard Representation により多言語対応文字列化する

Returns:



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# File 'lib/when_exe/inspect.rb', line 730

def to_m17n(*args)
  return m17n(I[@indeterminated_position]) if [Unknown, Max, Min].include?(@indeterminated_position)
  return m17n(_to_s)
end

#to_residue(remainder, divisor) ⇒ When::Coordinates::Residue

剰余類化

Parameters:

  • remainder (Numeric) —

    剰余

  • divisor (Integer) —

    法(>0)

Returns:



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# File 'lib/when_exe/tmposition.rb', line 756

def to_residue(remainder, divisor)
  When::Coordinates::Residue.new(remainder, divisor, {'day'=>to_i})
end

#to_s ⇒ String

文字列化 - When.exe Standard Representation により文字列化する

Returns:



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# File 'lib/when_exe/inspect.rb', line 743

def to_s(*args)
  to_m17n(*args).to_s
end

#to_time ⇒ ::Time

組み込みライブラリの Time オブジェクトへの変換

Returns:



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# File 'lib/when_exe/tmposition.rb', line 816

def to_time
  time_standard.to_time_object(universal_time)
end

#to_uri ⇒ String

URI要素化 - URI表現の要素として用いる形式に変換

Returns:



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# File 'lib/when_exe/inspect.rb', line 753

def to_uri(*args)
  _to_uri(to_s(*args))
end

#to_uri_escape ⇒ String

URI要素化 - URI表現の要素として用いる形式に変換(“^”はエスケープ)

Returns:



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# File 'lib/when_exe/inspect.rb', line 763

def to_uri_escape(*args)
  _to_uri(to_s(*args)).gsub('^', '%5E')
end

#universal_time ⇒ Numeric Also known as: local_time

内部時間

Returns:

  • (Numeric) —

    1970-01-01T00:00:00Z からの Universal Time, Coordinated の経過時間 / 128秒

    暦法によっては、異なる意味を持つことがある



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# File 'lib/when_exe/tmposition.rb', line 698

def universal_time
  case @indeterminated_position
  when Now ; time_standard.from_time_object(Time.now)
  when Max ; +Float::MAX/4
  when Min ; -Float::MAX/4
  else     ; raise NameError, "Temporal Reference System is not defined"
  end
end

#week_included(ord, wkst, opt, &block) ⇒ Range, Array

Note:

引数 ord, wkst, opt はそのクラスで位置づけを判断するため、引数の順序は任意(省略も可)

含まれる週

Parameters:

  • ord (Numeric, Range) —

    週の番号(default: 今週) 今週を 0 とする週番号(Integer) または週番号の範囲(Range)

    -1 - 先週
 0 - 今週
+1 - 来週
  • wkst (String) —

    週の開始曜日(defaultは 月曜)

  • wkst (When::CalendarNote) —

    暦注オブジェクト

  • wkst (Array<When::CalendarNote, String>) —

    暦注オブジェクトとそのイベントメソッド名 (暦注オブジェクトは、そのIRI文字列を指定しても良い)

  • opt (Hash) —

    下記の通り

  • block (Block)

Options Hash (opt):

  • :Range (Range) —

    上位繰り返し範囲(ユリウス通日…ユリウス通日)

Returns:

  • (Range) —

    含まれる週を範囲として表現する Range (block 指定なし)

  • (Array) —

    含まれる週の各日をブロックに渡した結果の Array (block 指定あり)



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# File 'lib/when_exe/inspect.rb', line 404

def week_included(*args, &block)
  begin
    first, length, wkst, opt = _range(args, 'MO')
    range = wkst._range_for_week_included(self, first, length, block_given?)
  rescue RangeError
    range = wkst._range_for_week_included(@frame ^ self, first, length)
  end

  return range.first unless block_given?

  wkst._column_for_week_included(self, range, opt, &block).unshift(yield(range[0].first, WEEK)).compact
end

#month_included(ord, wkst, opt, block) ⇒ Range, ...

Note:

引数 ord, wkst, opt はそのクラスで位置づけを判断するため、引数の順序は任意(省略も可)

含まれる年

Parameters:

  • ord (Numeric, Range) —

    年の番号(default: 今年) 今年を 0 とする年番号(Integer) または年番号の範囲(Range)

    -1 - 先年
 0 - 今年
+1 - 来年
  • wkst (String) —

    週の開始曜日(defaultはなし)

  • wkst (When::CalendarNote) —

    暦注オブジェクト

  • wkst (Array<When::CalendarNote, String>) —

    暦注オブジェクトとそのイベントメソッド名 (暦注オブジェクトは、そのIRI文字列を指定しても良い)

  • opt (Hash) —

    下記の通り

  • block (Block)

Options Hash (opt):

  • :Range (Range) —

    上位繰り返し範囲(ユリウス通日…ユリウス通日)

Returns:

  • (Range) —

    含まれる年を範囲として表現する Range (block 指定なし)

  • (Array) —

    含まれる年の各日をブロックに渡した結果の Array (block 指定あり, wkst なし)

  • (Array<Array>) —

    含まれる年の各日をブロックに渡した結果の 七曜表(block 指定あり, wkst あり)



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# File 'lib/when_exe/inspect.rb', line 513

def year_included(*args, &block)
  first, length, wkst, opt = _range(args)
  if wkst
    (first...(first+length)).map {|i|
      begun   = _force_euqal_year(i)
      ended   = _force_euqal_year(i+1)
      current = begun
      result  = [yield(begun, YEAR)]
      ended  += P1M if ended.floor(MONTH).most_significant_coordinate * 1 == begun.most_significant_coordinate * 1
      while current < ended do
        result << current.month_included(wkst, &block)
        current += P1M
      end
      result.compact
    }
  else
    begun = _force_euqal_year(first)
    ended = _force_euqal_year(first+length)
    if block_given?
      (begun...ended).map do |date|
        yield(date)
      end
    else
      begun...ended
    end
  end
end