Method: Date._parse

Defined in:
lib/date/format.rb

._parse(str, comp = true) ⇒ Object

call-seq:

_parse(str, comp=true) -> Hash

Attempt to parse the string by trying a wide variety of date formats sequentially (unless a match is found by the fast Ragel-based parser). The comp argument determines whether to convert 2-digit years to 4-digit years. If the str is not in a supported format, an empty hash will be returned.

This method searches for a match anywhere in the string, unlike most of the other ruby 1.9-only parsing methods which require that an exact match for the entire string.



662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
 
# File 'lib/date/format.rb', line 662

def self._parse(str, comp=true)
  if v = _ragel_parse(str)
    return v
  end

  str = str.dup

  e = {:_ => {:comp => comp}}
  str.gsub!(/[^-+',.\/:@[:alnum:]\[\]]+/, ' ')

  _parse_time(str, e)
  _parse_day(str, e)

  _parse_eu(str, e)     ||
  _parse_us(str, e)     ||
  _parse_iso(str, e)    ||
  _parse_jis(str, e)    ||
  _parse_vms(str, e)    ||
  _parse_sla(str, e)    ||
  _parse_dot(str, e)    ||
  _parse_iso2(str, e)   ||
  _parse_year(str, e)   ||
  _parse_mon(str, e)    ||
  _parse_mday(str, e)   ||
  _parse_ddd(str, e)

  if str.sub!(/\b(bc\b|bce\b|b\.c\.|b\.c\.e\.)/i, ' ')
    if e[:year]
      e[:year] = -e[:year] + 1
    end
  end

  if str.sub!(/\A\s*(\d{1,2})\s*\z/, ' ')
    if e[:hour] && !e[:mday]
      v = $1.to_i
      if (1..31) === v
        e[:mday] = v
      end
    end
    if e[:mday] && !e[:hour]
      v = $1.to_i
      if (0..24) === v
        e[:hour] = v
      end
    end
  end

  if e[:_][:comp]
    if e[:cwyear]
      if e[:cwyear] >= 0 && e[:cwyear] <= 99
        e[:cwyear] += if e[:cwyear] >= 69
                    then 1900 else 2000 end
      end
    end
    if e[:year]
      if e[:year] >= 0 && e[:year] <= 99
        e[:year] += if e[:year] >= 69
                  then 1900 else 2000 end
      end
    end
  end

  e[:offset] ||= zone_to_diff(e[:zone]) if e[:zone]

  e.delete(:_)
  e
end