Class: When::BasicTypes::Date

Inherits:
DateTime show all
Defined in:
lib/when_exe/basictypes.rb

Overview

ISO 8601 Date Representation

see xml schema

Constant Summary collapse

Extra_Year_Digits = 
Hash.new {|hash, key|
  ex = (key || 1).to_i
  hash[key] =
    if ex > 0
      [
        /\A(\d{2})\z/,
        /\A([-+]\d{#{4+ex}})(\d{2})(\d{2})\z/,
        /\A([-+]\d{#{4+ex}})-(\d{2})\z/,
        /\A([-+]\d{#{4+ex}})\z/,
        /\A([-+]\d{#{4+ex}})W(\d{2})(\d{1})?\z/,
        /\A([+]\d{#{2+ex}})\z/,
        /\A([-]\d{#{2+ex}})\z/,
        /\A([-+]\d{#{4+ex}})(\d{3})\z/
      ]
    elsif ex == 0
      [/\A(\d{2})\z/] + [/\A(\d{4})\z/] * 6
    else
      [/\A(\d{4})\z/] * 7
    end
}
Ordinal_Date_Digits = 
Hash.new {|hash, key|
  hash[key] = /\A(\d{#{(key || 3).to_i}})\z/
}

Class Method Summary collapse

Methods inherited from DateTime

_to_array

Methods inherited from String

#^, #calendar, #calendar_era, #calendar_note, #clock, #encode, #era, #ideographic_unification, #m17n, #ord, #resource, #to_m17n, #to_month_name, #to_pair, #to_r, #to_residue, #translate, #when?

Methods included from EncodingConversion

#+@, #-@, #to_external_encoding, #to_internal_encoding

Class Method Details

._to_array_basic_ISO8601(date, options = {}) ⇒ Object

ISO 8601 基本形式の表現を分解して配列化する

Raises:

  • (ArgumentError) 


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# File 'lib/when_exe/basictypes.rb', line 182

def _to_array_basic_ISO8601(date, options={})
  by, bm, bd = options[:abbr]
  extra_reg  = Extra_Year_Digits[options[:extra_year_digits]]
  case date
  when nil                            ; return nil
  when /\A(\d{4})(\d{2})(\d{2})\z/    ; return nil,     [$1.to_i, $2.to_i, $3.to_i]          # 5.2.1.1
  when /\A(\d{4})-(\d{2})\z/          ; return nil,     [$1.to_i, $2.to_i]                   # 5.2.1.2
  when /\A(\d{4})\z/                  ; return nil,     [$1.to_i]                            # 5.2.1.2
  when extra_reg[0]                   ; return :century,[$1.to_i * 100]                      # 5.2.1.2
  when /\A(\d{4})(\d{3})\z/           ; return :day,    [$1.to_i, $2.to_i]                   # 5.2.2.1
  when /\A(\d{4})W(\d{2})(\d{1})?\z/  ; return :week,   [$1.to_i, $2.to_i, _int($3)]         # 5.2.3.1-2
  when extra_reg[1]                   ; return nil,     [$1.to_i, $2.to_i, $3.to_i]          # 5.2.1.4 a)
  when extra_reg[2]                   ; return nil,     [$1.to_i, $2.to_i]                   # 5.2.1.4 b)
  when extra_reg[3]                   ; return nil,     [$1.to_i]                            # 5.2.1.4 c)
  when extra_reg[4]                   ; return :week,   [$1.to_i, $2.to_i, _int($3)]         # 5.2.3.4 a-b)
  when extra_reg[5]                   ; return :century,[$1.to_i * 100]                      # 5.2.1.4 d)
  when extra_reg[6]                   ; return :century,[$1.to_i * 100]       unless by      # 5.2.1.4 d)
  when extra_reg[7]                   ; return :day,    [$1.to_i, $2.to_i]                   # 5.2.2.3 a)
  else                                ; raise ArgumentError, "Wrong date format" unless by
  end

  by = by.to_i
  case date
  when /\A(\d{2})(\d{2})(\d{2})\z/    ; return nil,     [_century($1,by), $2.to_i, $3.to_i]  # 5.2.1.3 a)
  when /\A-(\d{2})(\d{2})?\z/         ; return nil,     [_century($1,by), _int($2)]          # 5.2.1.3 b-c)
  when /\A--(\d{2})(\d{2})?\z/        ; return nil,     [by, $1.to_i,     _int($2)]          # 5.2.1.3 d-e)
  when /\A(\d{2})(\d{3})\z/           ; return :day,    [_century($1,by), $2.to_i]           # 5.2.2.2 a)
  when /\A-(\d{3})\z/                 ; return :day,    [by, $1.to_i]                        # 5.2.2.2 b)
  when /\A(\d{2})W(\d{2})(\d{1})?\z/  ; return :week,   [_century($1,by), $2.to_i, _int($3)] # 5.2.3.3 a-b)
  when /\A-(\d{1})W(\d{2})(\d{1})?\z/ ; return :week,   [_decade($1,by),  $2.to_i, _int($3)] # 5.2.3.3 c-d)
  when /\A-W(\d{2})(\d{1})?\z/        ; return :week,   [by, $1.to_i,     _int($2)]          # 5.2.3.3 e-f)
  else                                ; raise ArgumentError, "Wrong date format" unless bm
  end

  bm = bm.to_i
  case date
  when /\A---(\d{2})\z/               ; return nil,     [by, bm, $1.to_i]                    # 5.2.1.3 f)
  when /\A-W-(\d{1})\z/               ; return :week,   [by, bm, $1.to_i]                    # 5.2.3.3 g)
  when /\A----\z/                     ; return nil,     [by, bm, bd.to_i] if bd              # extension
  end

  raise ArgumentError, "Wrong date format: #{date}"
end

._to_array_basic_X0301(date, options = {}) ⇒ Object

JIS X0301 基本形式の表現を分解して配列化する

Raises:

  • (ArgumentError) 


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# File 'lib/when_exe/basictypes.rb', line 227

def _to_array_basic_X0301(date, options={})
  raise ArgumentError, "Wrong date format" unless date =~ /\./
  date.scan(/\d+\./) do |part|
    raise ArgumentError, "Wrong date format" unless part.length == 3
  end
  _to_array_basic_ISO8601(date.gsub(/\./, ''), {:abbr=>options[:abbr]||1})
end

._to_array_extended_ISO8601(date, options = {}) ⇒ Object

ISO 8601 拡張形式の表現を分解して配列化する



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# File 'lib/when_exe/basictypes.rb', line 236

def _to_array_extended_ISO8601(date, options={})
  return nil unless date
  abbr = Array(options[:abbr]).dup
  unless date =~ /\A([-+]?\d+#{abbr[0] ? '|-' : ''})([-*=.])?(.*)/
    raise ArgumentError, "Wrong date format: #{date}"
  end
  date = $3
  dd   = [Coordinates::Pair._en_pair(_completion($1, abbr.shift), $2)]
  while date =~ /\A(\d+#{abbr[0] ? '|-' : ''})([-+*&%@!>=<?.])(.+)/
    date = $3
    dd << Coordinates::Pair._en_pair(_completion($1, abbr.shift), $2)
  end
  case date
  when /\AW(\d+#{abbr[0] ? '|-' : ''})([-+*&%@!>=<?.])?(\d+)?([-*=?%@])?\z/
    dd << Coordinates::Pair._en_pair(_completion($1, abbr.shift), $2)
    dd << Coordinates::Pair._en_pair($3, $4)
    return :week, dd
  when Ordinal_Date_Digits[options[:ordinal_date_digits]]
    dd << $1.to_i
    return :day, dd
  when /\A(\d+#{abbr[0] ? '|-' : ''})([-+*&%@!>=<?.])?\z/
    dd << Coordinates::Pair._en_pair(_completion($1, abbr.shift), $2)
    return nil, dd
  when ''
    return nil, dd
  else
   raise ArgumentError, "Wrong date format: #{date}"
  end
end

._to_array_extended_X0301(date, era, options = {}) ⇒ Object

JIS X0301 拡張形式の表現を分解して配列化する



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# File 'lib/when_exe/basictypes.rb', line 267

def _to_array_extended_X0301(date, era, options={})
  if (date =~ /\A([-+\d]+)\(([-+\d]+)\)(.*)\z/)
    year = $2
    date = $1 + $3
  end
  format, date  = _to_array_extended_ISO8601(date, options)
  if (year)
    yy   = year.to_i
    ee   = date[0] * 1
    era  = [era, yy-ee, yy+ee]
  end
  return format, date, era
end