method

julian?

v1_8_7_72 - Show latest stable - Class: Date

julian?(jd, sg)

public

Does a given Julian Day Number fall inside the old-style (Julian) calendar?

jd is the Julian Day Number in question. sg may be Date::GREGORIAN, in which case the answer is false; it may be Date::JULIAN, in which case the answer is true; or it may a number representing the Day of Calendar Reform. Date::ENGLAND and Date::ITALY are two possible such days.

# File lib/date.rb, line 340
  def self.julian? (jd, sg)
    case sg
    when Numeric
      jd < sg
    else
      if $VERBOSE
        warn("#{caller.shift.sub(/:in .*/, '')}: " \
"warning: do not use non-numerical object as julian day number anymore")
      end
      not sg
    end
  end

julian?

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