From 441546edcfbb1b346c87b69c5f578d1a0e522e06 Mon Sep 17 00:00:00 2001
From: shyouhei <shyouhei@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Mon, 7 Jul 2008 07:36:34 +0000
Subject: add tag v1_8_6_269

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/tags/v1_8_6_269@17937 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ruby_1_8_6/lib/date/format.rb | 1088 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 1088 insertions(+)
 create mode 100644 ruby_1_8_6/lib/date/format.rb

(limited to 'ruby_1_8_6/lib/date/format.rb')

diff --git a/ruby_1_8_6/lib/date/format.rb b/ruby_1_8_6/lib/date/format.rb
new file mode 100644
index 0000000000..8bd14c7fd0
--- /dev/null
+++ b/ruby_1_8_6/lib/date/format.rb
@@ -0,0 +1,1088 @@
+# format.rb: Written by Tadayoshi Funaba 1999-2007
+# $Id: format.rb,v 2.30 2007-01-07 09:16:24+09 tadf Exp $
+
+require 'rational'
+
+class Date
+
+  module Format # :nodoc:
+
+    MONTHS = {
+      'january'  => 1, 'february' => 2, 'march'    => 3, 'april'    => 4,
+      'may'      => 5, 'june'     => 6, 'july'     => 7, 'august'   => 8,
+      'september'=> 9, 'october'  =>10, 'november' =>11, 'december' =>12
+    }
+
+    DAYS = {
+      'sunday'   => 0, 'monday'   => 1, 'tuesday'  => 2, 'wednesday'=> 3,
+      'thursday' => 4, 'friday'   => 5, 'saturday' => 6
+    }
+
+    ABBR_MONTHS = {
+      'jan'      => 1, 'feb'      => 2, 'mar'      => 3, 'apr'      => 4,
+      'may'      => 5, 'jun'      => 6, 'jul'      => 7, 'aug'      => 8,
+      'sep'      => 9, 'oct'      =>10, 'nov'      =>11, 'dec'      =>12
+    }
+
+    ABBR_DAYS = {
+      'sun'      => 0, 'mon'      => 1, 'tue'      => 2, 'wed'      => 3,
+      'thu'      => 4, 'fri'      => 5, 'sat'      => 6
+    }
+
+    ZONES = {
+      'ut'  =>  0*3600, 'gmt' =>  0*3600, 'est' => -5*3600, 'edt' => -4*3600,
+      'cst' => -6*3600, 'cdt' => -5*3600, 'mst' => -7*3600, 'mdt' => -6*3600,
+      'pst' => -8*3600, 'pdt' => -7*3600,
+      'a'   =>  1*3600, 'b'   =>  2*3600, 'c'   =>  3*3600, 'd'   =>  4*3600,
+      'e'   =>  5*3600, 'f'   =>  6*3600, 'g'   =>  7*3600, 'h'   =>  8*3600,
+      'i'   =>  9*3600, 'k'   => 10*3600, 'l'   => 11*3600, 'm'   => 12*3600,
+      'n'   => -1*3600, 'o'   => -2*3600, 'p'   => -3*3600, 'q'   => -4*3600,
+      'r'   => -5*3600, 's'   => -6*3600, 't'   => -7*3600, 'u'   => -8*3600,
+      'v'   => -9*3600, 'w'   =>-10*3600, 'x'   =>-11*3600, 'y'   =>-12*3600,
+      'z'   =>  0*3600,
+      'utc' =>  0*3600, 'wet' =>  0*3600, 'bst' =>  1*3600, 'wat' => -1*3600,
+      'at'  => -2*3600, 'ast' => -4*3600, 'adt' => -3*3600, 'yst' => -9*3600,
+      'ydt' => -8*3600, 'hst' =>-10*3600, 'hdt' => -9*3600, 'cat' =>-10*3600,
+      'ahst'=>-10*3600, 'nt'  =>-11*3600, 'idlw'=>-12*3600, 'cet' =>  1*3600,
+      'met' =>  1*3600, 'mewt'=>  1*3600, 'mest'=>  2*3600, 'mesz'=>  2*3600,
+      'swt' =>  1*3600, 'sst' =>  2*3600, 'fwt' =>  1*3600, 'fst' =>  2*3600,
+      'eet' =>  2*3600, 'bt'  =>  3*3600, 'zp4' =>  4*3600, 'zp5' =>  5*3600,
+      'zp6' =>  6*3600, 'wast'=>  7*3600, 'wadt'=>  8*3600, 'cct' =>  8*3600,
+      'jst' =>  9*3600, 'east'=> 10*3600, 'eadt'=> 11*3600, 'gst' => 10*3600,
+      'nzt' => 12*3600, 'nzst'=> 12*3600, 'nzdt'=> 13*3600, 'idle'=> 12*3600,
+
+      'afghanistan'           =>   16200, 'alaskan'               =>  -32400,
+      'arab'                  =>   10800, 'arabian'               =>   14400,
+      'arabic'                =>   10800, 'atlantic'              =>  -14400,
+      'aus central'           =>   34200, 'aus eastern'           =>   36000,
+      'azores'                =>   -3600, 'canada central'        =>  -21600,
+      'cape verde'            =>   -3600, 'caucasus'              =>   14400,
+      'cen. australia'        =>   34200, 'central america'       =>  -21600,
+      'central asia'          =>   21600, 'central europe'        =>    3600,
+      'central european'      =>    3600, 'central pacific'       =>   39600,
+      'central'               =>  -21600, 'china'                 =>   28800,
+      'dateline'              =>  -43200, 'e. africa'             =>   10800,
+      'e. australia'          =>   36000, 'e. europe'             =>    7200,
+      'e. south america'      =>  -10800, 'eastern'               =>  -18000,
+      'egypt'                 =>    7200, 'ekaterinburg'          =>   18000,
+      'fiji'                  =>   43200, 'fle'                   =>    7200,
+      'greenland'             =>  -10800, 'greenwich'             =>       0,
+      'gtb'                   =>    7200, 'hawaiian'              =>  -36000,
+      'india'                 =>   19800, 'iran'                  =>   12600,
+      'jerusalem'             =>    7200, 'korea'                 =>   32400,
+      'mexico'                =>  -21600, 'mid-atlantic'          =>   -7200,
+      'mountain'              =>  -25200, 'myanmar'               =>   23400,
+      'n. central asia'       =>   21600, 'nepal'                 =>   20700,
+      'new zealand'           =>   43200, 'newfoundland'          =>  -12600,
+      'north asia east'       =>   28800, 'north asia'            =>   25200,
+      'pacific sa'            =>  -14400, 'pacific'               =>  -28800,
+      'romance'               =>    3600, 'russian'               =>   10800,
+      'sa eastern'            =>  -10800, 'sa pacific'            =>  -18000,
+      'sa western'            =>  -14400, 'samoa'                 =>  -39600,
+      'se asia'               =>   25200, 'malay peninsula'       =>   28800,
+      'south africa'          =>    7200, 'sri lanka'             =>   21600,
+      'taipei'                =>   28800, 'tasmania'              =>   36000,
+      'tokyo'                 =>   32400, 'tonga'                 =>   46800,
+      'us eastern'            =>  -18000, 'us mountain'           =>  -25200,
+      'vladivostok'           =>   36000, 'w. australia'          =>   28800,
+      'w. central africa'     =>    3600, 'w. europe'             =>    3600,
+      'west asia'             =>   18000, 'west pacific'          =>   36000,
+      'yakutsk'               =>   32400
+    }
+
+    [MONTHS, DAYS, ABBR_MONTHS, ABBR_DAYS, ZONES].each do |x|
+      x.freeze
+    end
+
+    class Bag # :nodoc:
+
+      def initialize
+	@elem = {}
+      end
+
+      def method_missing(t, *args, &block)
+	t = t.to_s
+	set = t.chomp!('=')
+	t = t.intern
+	if set
+	  @elem[t] = args[0]
+	else
+	  @elem[t]
+	end
+      end
+
+      def to_hash
+	@elem.reject{|k, v| /\A_/ =~ k.to_s || v.nil?}
+      end
+
+    end
+
+  end
+
+  def emit(e, f) # :nodoc:
+    case e
+    when Numeric
+      sign = %w(+ + -)[e <=> 0]
+      e = e.abs
+    end
+
+    s = e.to_s
+
+    if f[:s] && f[:p] == '0'
+      f[:w] -= 1
+    end
+
+    if f[:s] && f[:p] == "\s"
+      s[0,0] = sign
+    end
+
+    if f[:p] != '-'
+      s = s.rjust(f[:w], f[:p])
+    end
+
+    if f[:s] && f[:p] != "\s"
+      s[0,0] = sign
+    end
+
+    s = s.upcase if f[:u]
+    s = s.downcase if f[:d]
+    s
+  end
+
+  def emit_w(e, w, f) # :nodoc:
+    f[:w] = [f[:w], w].compact.max
+    emit(e, f)
+  end
+
+  def emit_n(e, w, f) # :nodoc:
+    f[:p] ||= '0'
+    emit_w(e, w, f)
+  end
+
+  def emit_sn(e, w, f) # :nodoc:
+    if e < 0
+      w += 1
+      f[:s] = true
+    end
+    emit_n(e, w, f)
+  end
+
+  def emit_z(e, w, f) # :nodoc:
+    w += 1
+    f[:s] = true
+    emit_n(e, w, f)
+  end
+
+  def emit_a(e, w, f) # :nodoc:
+    f[:p] ||= "\s"
+    emit_w(e, w, f)
+  end
+
+  def emit_ad(e, w, f) # :nodoc:
+    if f[:x]
+      f[:u] = true
+      f[:d] = false
+    end
+    emit_a(e, w, f)
+  end
+
+  def emit_au(e, w, f) # :nodoc:
+    if f[:x]
+      f[:u] = false
+      f[:d] = true
+    end
+    emit_a(e, w, f)
+  end
+
+  private :emit, :emit_w, :emit_n, :emit_sn, :emit_z,
+	  :emit_a, :emit_ad, :emit_au
+
+  def strftime(fmt='%F')
+    fmt.gsub(/%([-_0^#]+)?(\d+)?[EO]?(:{1,3}z|.)/m) do |m|
+      f = {}
+      s, w, c = $1, $2, $3
+      if s
+	s.scan(/./) do |k|
+	  case k
+	  when '-'; f[:p] = '-'
+	  when '_'; f[:p] = "\s"
+	  when '0'; f[:p] = '0'
+	  when '^'; f[:u] = true
+	  when '#'; f[:x] = true
+	  end
+	end
+      end
+      if w
+	f[:w] = w.to_i
+      end
+      case c
+      when 'A'; emit_ad(DAYNAMES[wday], 0, f)
+      when 'a'; emit_ad(ABBR_DAYNAMES[wday], 0, f)
+      when 'B'; emit_ad(MONTHNAMES[mon], 0, f)
+      when 'b'; emit_ad(ABBR_MONTHNAMES[mon], 0, f)
+      when 'C'; emit_sn((year / 100).floor, 2, f)
+      when 'c'; emit_a(strftime('%a %b %e %H:%M:%S %Y'), 0, f)
+      when 'D'; emit_a(strftime('%m/%d/%y'), 0, f)
+      when 'd'; emit_n(mday, 2, f)
+      when 'e'; emit_a(mday, 2, f)
+      when 'F'
+	if m == '%F'
+	  format('%.4d-%02d-%02d', year, mon, mday) # 4p
+	else
+	  emit_a(strftime('%Y-%m-%d'), 0, f)
+	end
+      when 'G'; emit_sn(cwyear, 4, f)
+      when 'g'; emit_n(cwyear % 100, 2, f)
+      when 'H'; emit_n(hour, 2, f)
+      when 'h'; emit_ad(strftime('%b'), 0, f)
+      when 'I'; emit_n((hour % 12).nonzero? || 12, 2, f)
+      when 'j'; emit_n(yday, 3, f)
+      when 'k'; emit_a(hour, 2, f)
+      when 'L'
+	emit_n((sec_fraction / (1.to_r/86400/(10**3))).round, 3, f)
+      when 'l'; emit_a((hour % 12).nonzero? || 12, 2, f)
+      when 'M'; emit_n(min, 2, f)
+      when 'm'; emit_n(mon, 2, f)
+      when 'N'
+	emit_n((sec_fraction / (1.to_r/86400/(10**9))).round, 9, f)
+      when 'n'; "\n"
+      when 'P'; emit_ad(strftime('%p').downcase, 0, f)
+      when 'p'; emit_au(if hour < 12 then 'AM' else 'PM' end, 0, f)
+      when 'Q'
+	d = ajd - self.class.jd_to_ajd(self.class::UNIXEPOCH, 0)
+	s = (d * 86400*10**3).to_i
+	emit_sn(s, 1, f)
+      when 'R'; emit_a(strftime('%H:%M'), 0, f)
+      when 'r'; emit_a(strftime('%I:%M:%S %p'), 0, f)
+      when 'S'; emit_n(sec, 2, f)
+      when 's'
+	d = ajd - self.class.jd_to_ajd(self.class::UNIXEPOCH, 0)
+	s = (d * 86400).to_i
+	emit_sn(s, 1, f)
+      when 'T'
+	if m == '%T'
+	  format('%02d:%02d:%02d', hour, min, sec) # 4p
+	else
+	  emit_a(strftime('%H:%M:%S'), 0, f)
+	end
+      when 't'; "\t"
+      when 'U', 'W'
+	emit_n(if c == 'U' then wnum0 else wnum1 end, 2, f)
+      when 'u'; emit_n(cwday, 1, f)
+      when 'V'; emit_n(cweek, 2, f)
+      when 'v'; emit_a(strftime('%e-%b-%Y'), 0, f)
+      when 'w'; emit_n(wday, 1, f)
+      when 'X'; emit_a(strftime('%H:%M:%S'), 0, f)
+      when 'x'; emit_a(strftime('%m/%d/%y'), 0, f)
+      when 'Y'; emit_sn(year, 4, f)
+      when 'y'; emit_n(year % 100, 2, f)
+      when 'Z'; emit_au(strftime('%:z'), 0, f)
+      when /\A(:{0,3})z/
+	t = $1.size
+	sign = if offset < 0 then -1 else +1 end
+	fr = offset.abs
+	hh, fr = fr.divmod(1.to_r/24)
+	mm, fr = fr.divmod(1.to_r/1440)
+	ss, fr = fr.divmod(1.to_r/86400)
+	if t == 3
+	  if    ss.nonzero? then t =  2
+	  elsif mm.nonzero? then t =  1
+	  else                   t = -1
+	  end
+	end
+	case t
+	when -1
+	  tail = []
+	  sep = ''
+	when 0
+	  f[:w] -= 2 if f[:w]
+	  tail = ['%02d' % mm]
+	  sep = ''
+	when 1
+	  f[:w] -= 3 if f[:w]
+	  tail = ['%02d' % mm]
+	  sep = ':'
+	when 2
+	  f[:w] -= 6 if f[:w]
+	  tail = ['%02d' % mm, '%02d' % ss]
+	  sep = ':'
+	end
+	([emit_z(sign * hh, 2, f)] + tail).join(sep)
+      when '%'; emit_a('%', 0, f)
+      when '+'; emit_a(strftime('%a %b %e %H:%M:%S %Z %Y'), 0, f)
+      when '1'
+	if $VERBOSE
+	  warn("warning: strftime: %1 is deprecated; forget this")
+	end
+	emit_n(jd, 1, f)
+      when '2'
+	if $VERBOSE
+	  warn("warning: strftime: %2 is deprecated; use '%Y-%j'")
+	end
+	emit_a(strftime('%Y-%j'), 0, f)
+      when '3'
+	if $VERBOSE
+	  warn("warning: strftime: %3 is deprecated; use '%F'")
+	end
+	emit_a(strftime('%F'), 0, f)
+      else
+	c
+      end
+    end
+  end
+
+# alias_method :format, :strftime
+
+  def asctime() strftime('%c') end
+
+  alias_method :ctime, :asctime
+
+=begin
+  def iso8601() strftime('%F') end
+
+  def rfc3339() iso8601 end
+
+  def rfc2822() strftime('%a, %-d %b %Y %T %z') end
+
+  alias_method :rfc822, :rfc2822
+
+  def jisx0301
+    if jd < 2405160
+      iso8601
+    else
+      case jd
+      when 2405160...2419614
+	g = 'M%02d' % (year - 1867)
+      when 2419614...2424875
+	g = 'T%02d' % (year - 1911)
+      when 2424875...2447535
+	g = 'S%02d' % (year - 1925)
+      else
+	g = 'H%02d' % (year - 1988)
+      end
+      g + strftime('.%m.%d')
+    end
+  end
+
+  def beat(n=0)
+    i, f = (new_offset(1.to_r/24).day_fraction * 1000).divmod(1)
+    ('@%03d' % i) +
+      if n < 1
+	''
+      else
+	'.%0*d' % [n, (f / (1.to_r/(10**n))).round]
+      end
+  end
+=end
+
+  def self.num_pattern? (s) # :nodoc:
+    /\A%[EO]?[CDdeFGgHIjkLlMmNQRrSsTUuVvWwXxYy\d]/ =~ s || /\A\d/ =~ s
+  end
+
+  private_class_method :num_pattern?
+
+  def self._strptime_i(str, fmt, e) # :nodoc:
+    fmt.scan(/%[EO]?(:{1,3}z|.)|(.)/m) do |s, c|
+      if s
+	case s
+	when 'A', 'a'
+	  return unless str.sub!(/\A(#{Format::DAYS.keys.join('|')})/io, '') ||
+			str.sub!(/\A(#{Format::ABBR_DAYS.keys.join('|')})/io, '')
+	  val = Format::DAYS[$1.downcase] || Format::ABBR_DAYS[$1.downcase]
+	  return unless val
+	  e.wday = val
+	when 'B', 'b', 'h'
+	  return unless str.sub!(/\A(#{Format::MONTHS.keys.join('|')})/io, '') ||
+			str.sub!(/\A(#{Format::ABBR_MONTHS.keys.join('|')})/io, '')
+	  val = Format::MONTHS[$1.downcase] || Format::ABBR_MONTHS[$1.downcase]
+	  return unless val
+	  e.mon = val
+	when 'C'
+	  return unless str.sub!(if num_pattern?($')
+				 then /\A([-+]?\d{1,2})/
+				 else /\A([-+]?\d{1,})/
+				 end, '')
+	  val = $1.to_i
+	  e._cent = val
+	when 'c'
+	  return unless _strptime_i(str, '%a %b %e %H:%M:%S %Y', e)
+	when 'D'
+	  return unless _strptime_i(str, '%m/%d/%y', e)
+	when 'd', 'e'
+	  return unless str.sub!(/\A( \d|\d{1,2})/, '')
+	  val = $1.to_i
+	  return unless (1..31) === val
+	  e.mday = val
+	when 'F'
+	  return unless _strptime_i(str, '%Y-%m-%d', e)
+	when 'G'
+	  return unless str.sub!(if num_pattern?($')
+				 then /\A([-+]?\d{1,4})/
+				 else /\A([-+]?\d{1,})/
+				 end, '')
+	  val = $1.to_i
+	  e.cwyear = val
+	when 'g'
+	  return unless str.sub!(/\A(\d{1,2})/, '')
+	  val = $1.to_i
+	  return unless (0..99) === val
+	  e.cwyear = val
+	  e._cent ||= if val >= 69 then 19 else 20 end
+	when 'H', 'k'
+	  return unless str.sub!(/\A( \d|\d{1,2})/, '')
+	  val = $1.to_i
+	  return unless (0..24) === val
+	  e.hour = val
+	when 'I', 'l'
+	  return unless str.sub!(/\A( \d|\d{1,2})/, '')
+	  val = $1.to_i
+	  return unless (1..12) === val
+	  e.hour = val
+	when 'j'
+	  return unless str.sub!(/\A(\d{1,3})/, '')
+	  val = $1.to_i
+	  return unless (1..366) === val
+	  e.yday = val
+	when 'L'
+	  return unless str.sub!(if num_pattern?($')
+				 then /\A([-+]?\d{1,3})/
+				 else /\A([-+]?\d{1,})/
+				 end, '')
+#	  val = $1.to_i.to_r / (10**3)
+	  val = $1.to_i.to_r / (10**$1.size)
+	  e.sec_fraction = val
+	when 'M'
+	  return unless str.sub!(/\A(\d{1,2})/, '')
+	  val = $1.to_i
+	  return unless (0..59) === val
+	  e.min = val
+	when 'm'
+	  return unless str.sub!(/\A(\d{1,2})/, '')
+	  val = $1.to_i
+	  return unless (1..12) === val
+	  e.mon = val
+	when 'N'
+	  return unless str.sub!(if num_pattern?($')
+				 then /\A([-+]?\d{1,9})/
+				 else /\A([-+]?\d{1,})/
+				 end, '')
+#	  val = $1.to_i.to_r / (10**9)
+	  val = $1.to_i.to_r / (10**$1.size)
+	  e.sec_fraction = val
+	when 'n', 't'
+	  return unless _strptime_i(str, "\s", e)
+	when 'P', 'p'
+	  return unless str.sub!(/\A([ap])(?:m\b|\.m\.)/i, '')
+	  e._merid = if $1.downcase == 'a' then 0 else 12 end
+	when 'Q'
+	  return unless str.sub!(/\A(-?\d{1,})/, '')
+	  val = $1.to_i.to_r / 10**3
+	  e.seconds = val
+	when 'R'
+	  return unless _strptime_i(str, '%H:%M', e)
+	when 'r'
+	  return unless _strptime_i(str, '%I:%M:%S %p', e)
+	when 'S'
+	  return unless str.sub!(/\A(\d{1,2})/, '')
+	  val = $1.to_i
+	  return unless (0..60) === val
+	  e.sec = val
+	when 's'
+	  return unless str.sub!(/\A(-?\d{1,})/, '')
+	  val = $1.to_i
+	  e.seconds = val
+	when 'T'
+	  return unless _strptime_i(str, '%H:%M:%S', e)
+	when 'U', 'W'
+	  return unless str.sub!(/\A(\d{1,2})/, '')
+	  val = $1.to_i
+	  return unless (0..53) === val
+	  e.__send__(if s == 'U' then :wnum0= else :wnum1= end, val)
+	when 'u'
+	  return unless str.sub!(/\A(\d{1})/, '')
+	  val = $1.to_i
+	  return unless (1..7) === val
+	  e.cwday = val
+	when 'V'
+	  return unless str.sub!(/\A(\d{1,2})/, '')
+	  val = $1.to_i
+	  return unless (1..53) === val
+	  e.cweek = val
+	when 'v'
+	  return unless _strptime_i(str, '%e-%b-%Y', e)
+	when 'w'
+	  return unless str.sub!(/\A(\d{1})/, '')
+	  val = $1.to_i
+	  return unless (0..6) === val
+	  e.wday = val
+	when 'X'
+	  return unless _strptime_i(str, '%H:%M:%S', e)
+	when 'x'
+	  return unless _strptime_i(str, '%m/%d/%y', e)
+	when 'Y'
+	  return unless str.sub!(if num_pattern?($')
+				 then /\A([-+]?\d{1,4})/
+				 else /\A([-+]?\d{1,})/
+				 end, '')
+	  val = $1.to_i
+	  e.year = val
+	when 'y'
+	  return unless str.sub!(/\A(\d{1,2})/, '')
+	  val = $1.to_i
+	  return unless (0..99) === val
+	  e.year = val
+	  e._cent ||= if val >= 69 then 19 else 20 end
+	when 'Z', /\A:{0,3}z/
+	  return unless str.sub!(/\A((?:gmt|utc?)?[-+]\d+(?:[,.:]\d+(?::\d+)?)?
+				    |[a-z.\s]+(?:standard|daylight)\s+time\b
+				    |[a-z]+(?:\s+dst)?\b
+				    )/ix, '')
+	  val = $1
+	  e.zone = val
+	  offset = zone_to_diff(val)
+	  e.offset = offset
+	when '%'
+	  return unless str.sub!(/\A%/, '')
+	when '+'
+	  return unless _strptime_i(str, '%a %b %e %H:%M:%S %Z %Y', e)
+	when '1'
+	  if $VERBOSE
+	    warn("warning: strptime: %1 is deprecated; forget this")
+	  end
+	  return unless str.sub!(/\A(\d+)/, '')
+	  val = $1.to_i
+	  e.jd = val
+	when '2'
+	  if $VERBOSE
+	    warn("warning: strptime: %2 is deprecated; use '%Y-%j'")
+	  end
+	  return unless _strptime_i(str, '%Y-%j', e)
+	when '3'
+	  if $VERBOSE
+	    warn("warning: strptime: %3 is deprecated; use '%F'")
+	  end
+	  return unless _strptime_i(str, '%F', e)
+	else
+	  return unless str.sub!(Regexp.new('\\A' + Regexp.quote(s)), '')
+	end
+      else
+	case c
+	when /\A[\s\v]/
+	  str.sub!(/\A[\s\v]+/, '')
+	else
+	  return unless str.sub!(Regexp.new('\\A' + Regexp.quote(c)), '')
+	end
+      end
+    end
+  end
+
+  private_class_method :_strptime_i
+
+  def self._strptime(str, fmt='%F')
+    e = Format::Bag.new
+    return unless _strptime_i(str.dup, fmt, e)
+
+    if e._cent
+      if e.cwyear
+	e.cwyear += e._cent * 100
+      end
+      if e.year
+	e.  year += e._cent * 100
+      end
+    end
+
+    if e._merid
+      if e.hour
+	e.hour %= 12
+	e.hour += e._merid
+      end
+    end
+
+    e.to_hash
+  end
+
+  def self.s3e(e, y, m, d, bc=false)
+    unless String === m
+      m = m.to_s
+    end
+
+    if y == nil
+      if d && d.size > 2
+	y = d
+	d = nil
+      end
+      if d && d[0,1] == "'"
+	y = d
+	d = nil
+      end
+    end
+
+    if y
+      y.scan(/(\d+)(.+)?/)
+      if $2
+	y, d = d, $1
+      end
+    end
+
+    if m
+      if m[0,1] == "'" || m.size > 2
+	y, m, d = m, d, y # us -> be
+      end
+    end
+
+    if d
+      if d[0,1] == "'" || d.size > 2
+	y, d = d, y
+      end
+    end
+
+    if y
+      y =~ /([-+])?(\d+)/
+      if $1 || $2.size > 2
+	c = false
+      end
+      iy = $&.to_i
+      if bc
+	iy = -iy + 1
+      end
+      e.year = iy
+    end
+
+    if m
+      m =~ /\d+/
+      e.mon = $&.to_i
+    end
+
+    if d
+      d =~ /\d+/
+      e.mday = $&.to_i
+    end
+
+    if c != nil
+      e._comp = c
+    end
+
+  end
+
+  private_class_method :s3e
+
+  def self._parse_day(str, e) # :nodoc:
+    if str.sub!(/\b(#{Format::ABBR_DAYS.keys.join('|')})[^-\d\s]*/ino, ' ')
+      e.wday = Format::ABBR_DAYS[$1.downcase]
+      true
+=begin
+    elsif str.sub!(/\b(?!\dth)(su|mo|tu|we|th|fr|sa)\b/in, ' ')
+      e.wday = %w(su mo tu we th fr sa).index($1.downcase)
+      true
+=end
+    end
+  end
+
+  def self._parse_time(str, e) # :nodoc:
+    if str.sub!(
+		/(
+		   (?:
+		     \d+\s*:\s*\d+
+		     (?:
+		       \s*:\s*\d+(?:[,.]\d*)?
+		     )?
+		   |
+		     \d+\s*h(?:\s*\d+m?(?:\s*\d+s?)?)?
+		   )
+		   (?:
+		     \s*
+		     [ap](?:m\b|\.m\.)
+		   )?
+		 |
+		   \d+\s*[ap](?:m\b|\.m\.)
+		 )
+		 (?:
+		   \s*
+		   (
+		     (?:gmt|utc?)?[-+]\d+(?:[,.:]\d+(?::\d+)?)?
+		   |
+		     [a-z.\s]+(?:standard|daylight)\stime\b
+		   |
+		     [a-z]+(?:\sdst)?\b
+		   )
+		 )?
+		/inx,
+		' ')
+
+      t = $1
+      e.zone = $2 if $2
+
+      t =~ /\A(\d+)h?
+	      (?:\s*:?\s*(\d+)m?
+		(?:
+		  \s*:?\s*(\d+)(?:[,.](\d+))?s?
+		)?
+	      )?
+	    (?:\s*([ap])(?:m\b|\.m\.))?/inx
+
+      e.hour = $1.to_i
+      e.min = $2.to_i if $2
+      e.sec = $3.to_i if $3
+      e.sec_fraction = $4.to_i.to_r / (10**$4.size) if $4
+
+      if $5
+	e.hour %= 12
+	if $5.downcase == 'p'
+	  e.hour += 12
+	end
+      end
+      true
+    end
+  end
+
+  def self._parse_beat(str, e) # :nodoc:
+    if str.sub!(/@\s*(\d+)(?:[,.](\d*))?/, ' ')
+      beat = $1.to_i.to_r
+      beat += $2.to_i.to_r / (10**$2.size) if $2
+      secs = beat.to_r / 1000
+      h, min, s, fr = self.day_fraction_to_time(secs)
+      e.hour = h
+      e.min = min
+      e.sec = s
+      e.sec_fraction = fr * 86400
+      e.zone = '+01:00'
+      true
+    end
+  end
+
+  def self._parse_eu(str, e) # :nodoc:
+    if str.sub!(
+		/'?(\d+)[^-\d\s]*
+		 \s*
+		 (#{Format::ABBR_MONTHS.keys.join('|')})[^-\d\s']*
+		 (?:
+		   \s*
+		   (c(?:e|\.e\.)|b(?:ce|\.c\.e\.)|a(?:d|\.d\.)|b(?:c|\.c\.))?
+		   \s*
+		   ('?-?\d+(?:(?:st|nd|rd|th)\b)?)
+		 )?
+		/inox,
+		' ') # '
+      s3e(e, $4, Format::ABBR_MONTHS[$2.downcase], $1,
+	  $3 && $3[0,1].downcase == 'b')
+      true
+    end
+  end
+
+  def self._parse_us(str, e) # :nodoc:
+    if str.sub!(
+		/\b(#{Format::ABBR_MONTHS.keys.join('|')})[^-\d\s']*
+		 \s*
+		 ('?\d+)[^-\d\s']*
+		 (?:
+		   \s*
+		   (c(?:e|\.e\.)|b(?:ce|\.c\.e\.)|a(?:d|\.d\.)|b(?:c|\.c\.))?
+		   \s*
+		   ('?-?\d+)
+		 )?
+		/inox,
+		' ') # '
+      s3e(e, $4, Format::ABBR_MONTHS[$1.downcase], $2,
+	  $3 && $3[0,1].downcase == 'b')
+      true
+    end
+  end
+
+  def self._parse_iso(str, e) # :nodoc:
+    if str.sub!(/('?[-+]?\d+)-(\d+)-('?-?\d+)/n, ' ')
+      s3e(e, $1, $2, $3)
+      true
+    end
+  end
+
+  def self._parse_iso2(str, e) # :nodoc:
+    if str.sub!(/\b(\d{2}|\d{4})?-?w(\d{2})(?:-?(\d+))?/in, ' ')
+      e.cwyear = $1.to_i if $1
+      e.cweek = $2.to_i
+      e.cwday = $3.to_i if $3
+      true
+    elsif str.sub!(/--(\d{2})-(\d{2})\b/n, ' ')
+      e.mon = $1.to_i
+      e.mday = $2.to_i
+      true
+    elsif str.sub!(/\b(\d{2}|\d{4})-(\d{2,3})\b/n, ' ')
+      e.year = $1.to_i
+      if $2.size < 3
+	e.mon = $2.to_i
+      else
+	e.yday = $2.to_i
+      end
+      true
+    end
+  end
+
+  def self._parse_jis(str, e) # :nodoc:
+    if str.sub!(/\b([MTSH])(\d+)\.(\d+)\.(\d+)/in, ' ')
+      era = { 'm'=>1867,
+	      't'=>1911,
+	      's'=>1925,
+	      'h'=>1988
+	  }[$1.downcase]
+      e.year = $2.to_i + era
+      e.mon = $3.to_i
+      e.mday = $4.to_i
+      true
+    end
+  end
+
+  def self._parse_vms(str, e) # :nodoc:
+    if str.sub!(/('?-?\d+)-(#{Format::ABBR_MONTHS.keys.join('|')})[^-]*
+		-('?-?\d+)/inox, ' ')
+      s3e(e, $3, Format::ABBR_MONTHS[$2.downcase], $1)
+      true
+    elsif str.sub!(/\b(#{Format::ABBR_MONTHS.keys.join('|')})[^-]*
+		-('?-?\d+)(?:-('?-?\d+))?/inox, ' ')
+      s3e(e, $3, Format::ABBR_MONTHS[$1.downcase], $2)
+      true
+    end
+  end
+
+  def self._parse_sla_ja(str, e) # :nodoc:
+    if str.sub!(%r|('?-?\d+)[/.]\s*('?\d+)(?:[^\d]\s*('?-?\d+))?|n, ' ') # '
+      s3e(e, $1, $2, $3)
+      true
+    end
+  end
+
+  def self._parse_sla_eu(str, e) # :nodoc:
+    if str.sub!(%r|('?-?\d+)[/.]\s*('?\d+)(?:[^\d]\s*('?-?\d+))?|n, ' ') # '
+      s3e(e, $3, $2, $1)
+      true
+    end
+  end
+
+  def self._parse_sla_us(str, e) # :nodoc:
+    if str.sub!(%r|('?-?\d+)[/.]\s*('?\d+)(?:[^\d]\s*('?-?\d+))?|n, ' ') # '
+      s3e(e, $3, $1, $2)
+      true
+    end
+  end
+
+  def self._parse_year(str, e) # :nodoc:
+    if str.sub!(/'(\d+)\b/in, ' ')
+      e.year = $1.to_i
+      true
+    end
+  end
+
+  def self._parse_mon(str, e) # :nodoc:
+    if str.sub!(/\b(#{Format::ABBR_MONTHS.keys.join('|')})\S*/ino, ' ')
+      e.mon = Format::ABBR_MONTHS[$1.downcase]
+      true
+    end
+  end
+
+  def self._parse_mday(str, e) # :nodoc:
+    if str.sub!(/(\d+)(st|nd|rd|th)\b/in, ' ')
+      e.mday = $1.to_i
+      true
+    end
+  end
+
+  def self._parse_ddd(str, e) # :nodoc:
+    if str.sub!(
+		/([-+]?)(\d{2,14})
+		  (?:
+		    \s*
+		    T?
+		    \s*
+		    (\d{2,6})(?:[,.](\d*))?
+		  )?
+		  (?:
+		    \s*
+		    (
+		      Z
+		    |
+		      [-+]\d{1,4}
+		    )
+		    \b
+		  )?
+		/inx,
+		' ')
+      case $2.size
+      when 2
+	e.mday = $2[ 0, 2].to_i
+      when 4
+	e.mon  = $2[ 0, 2].to_i
+	e.mday = $2[ 2, 2].to_i
+      when 6
+	e.year = ($1 + $2[ 0, 2]).to_i
+	e.mon  = $2[ 2, 2].to_i
+	e.mday = $2[ 4, 2].to_i
+      when 8, 10, 12, 14
+	e.year = ($1 + $2[ 0, 4]).to_i
+	e.mon  = $2[ 4, 2].to_i
+	e.mday = $2[ 6, 2].to_i
+	e.hour = $2[ 8, 2].to_i if $2.size >= 10
+	e.min  = $2[10, 2].to_i if $2.size >= 12
+	e.sec  = $2[12, 2].to_i if $2.size >= 14
+	e._comp = false
+      when 3
+	e.yday = $2[ 0, 3].to_i
+      when 5
+	e.year = ($1 + $2[ 0, 2]).to_i
+	e.yday = $2[ 2, 3].to_i
+      when 7
+	e.year = ($1 + $2[ 0, 4]).to_i
+	e.yday = $2[ 4, 3].to_i
+      end
+      if $3
+	case $3.size
+	when 2, 4, 6
+	  e.hour = $3[ 0, 2].to_i
+	  e.min  = $3[ 2, 2].to_i if $3.size >= 4
+	  e.sec  = $3[ 4, 2].to_i if $3.size >= 6
+	end
+      end
+      if $4
+	e.sec_fraction = $4.to_i.to_r / (10**$4.size)
+      end
+      if $5
+	e.zone = $5
+      end
+      true
+    end
+  end
+
+  private_class_method :_parse_day, :_parse_time, :_parse_beat,
+	:_parse_eu, :_parse_us, :_parse_iso, :_parse_iso2,
+	:_parse_jis, :_parse_vms,
+	:_parse_sla_ja, :_parse_sla_eu, :_parse_sla_us,
+	:_parse_year, :_parse_mon, :_parse_mday, :_parse_ddd
+
+  def self._parse(str, comp=false)
+    str = str.dup
+
+    e = Format::Bag.new
+
+    e._comp = comp
+
+    str.gsub!(/[^-+',.\/:0-9@a-z\x80-\xff]+/in, ' ')
+
+    _parse_time(str, e) # || _parse_beat(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_us(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\.)/in, ' ')
+      if e.year
+	e.year = -e.year + 1
+      end
+    end
+
+    if str.sub!(/\A\s*(\d{1,2})\s*\z/n, ' ')
+      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 and e.year
+      if e.year >= 0 and e.year <= 99
+	if e.year >= 69
+	  e.year += 1900
+	else
+	  e.year += 2000
+	end
+      end
+    end
+
+    e.offset ||= zone_to_diff(e.zone) if e.zone
+
+    e.to_hash
+  end
+
+  def self.zone_to_diff(zone) # :nodoc:
+    zone = zone.downcase
+    if zone.sub!(/\s+(standard|daylight)\s+time\z/, '')
+      dst = $1 == 'daylight'
+    else
+      dst = zone.sub!(/\s+dst\z/, '')
+    end
+    if Format::ZONES.include?(zone)
+      offset = Format::ZONES[zone]
+      offset += 3600 if dst
+    elsif zone.sub!(/\A(?:gmt|utc?)?([-+])/, '')
+      sign = $1
+      if zone.include?(':')
+	hour, min, sec, = zone.split(':')
+      elsif zone.include?(',') || zone.include?('.')
+	hour, fr, = zone.split(/[,.]/)
+	min = fr.to_i.to_r / (10**fr.size) * 60
+      else
+	case zone.size
+	when 3
+	  hour = zone[0,1]
+	  min = zone[1,2]
+	else
+	  hour = zone[0,2]
+	  min = zone[2,2]
+	  sec = zone[4,2]
+	end
+      end
+      offset = hour.to_i * 3600 + min.to_i * 60 + sec.to_i
+      offset *= -1 if sign == '-'
+    end
+    offset
+  end
+
+end
+
+class DateTime < Date
+
+  def strftime(fmt='%FT%T%:z')
+    super(fmt)
+  end
+
+  def self._strptime(str, fmt='%FT%T%z')
+    super(str, fmt)
+  end
+
+=begin
+  def iso8601_timediv(n) # :nodoc:
+    strftime('T%T' +
+	     if n < 1
+	       ''
+	     else
+	       '.%0*d' % [n, (sec_fraction / (1.to_r/86400/(10**n))).round]
+	     end +
+	     '%:z')
+  end
+
+  private :iso8601_timediv
+
+  def iso8601(n=0)
+    super() + iso8601_timediv(n)
+  end
+
+  def rfc3339(n=0) iso8601(n) end
+
+  def jisx0301(n=0)
+    super() + iso8601_timediv(n)
+  end
+=end
+
+end
-- 
cgit v1.2.3