Method: Runt::REYear#initialize

Defined in:

lib/runt/temporalexpression.rb

#initialize(start_month, *args) ⇒ REYear

Synopsis

REYear.new(start_month [, (start_day | end_month), ...]

Args

One or two arguments given

start_month

Start month. Valid values are 1..12. When no other parameters are given this value will be used for the end month as well. Matches the entire month through the ending month.

end_month

End month. Valid values are 1..12. When given in two argument form will match through the entire month.

Three or four arguments given

start_month

Start month. Valid values are 1..12.

start_day

Start day. Valid values are 1..31, depending on the month.

end_month

End month. Valid values are 1..12. If a fourth argument is not given, this value will cover through the entire month.

end_day

End day. Valid values are 1..31, depending on the month.

Description

Create a new REYear expression expressing a range of months or days within months within a year.

Usage

# Creates the range March 12th through May 23rd
expr = REYear.new(3,12,5,23)

# Creates the range March 1st through May 31st
expr = REYear.new(3,5)

# Creates the range March 12th through May 31st
expr = REYear.new(3,12,5)

# Creates the range March 1st through March 30th
expr = REYear.new(3)

# File 'lib/runt/temporalexpression.rb', line 531

def initialize(start_month, *args)
  @start_month = start_month
  if (args.nil? || args.size == NO_DAY) then
    # One argument given
    @end_month = start_month
    @start_day = NO_DAY
    @end_day = NO_DAY
  else
    case args.size
    when 1
      @end_month = args[0]
      @start_day = NO_DAY
      @end_day = NO_DAY
    when 2
      @start_day = args[0]
      @end_month = args[1]
      @end_day = NO_DAY
    when 3
      @start_day = args[0]
      @end_month = args[1]
      @end_day = args[2]
    else
      raise "Invalid number of var args: 1 or 3 expected, #{args.size} given"
    end
  end
  @same_month_dates_provided = (@start_month == @end_month) && (@start_day!=NO_DAY && @end_day != NO_DAY)
end