From dc9cd6a8c22ad04baa7498fd0cbc5d519ed73be0 Mon Sep 17 00:00:00 2001 From: tadf Date: Sat, 18 May 2002 12:41:51 +0000 Subject: updated to the new version (based on date2 3.2.1). git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@2467 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- lib/date/format.rb | 529 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 529 insertions(+) create mode 100644 lib/date/format.rb (limited to 'lib/date/format.rb') diff --git a/lib/date/format.rb b/lib/date/format.rb new file mode 100644 index 0000000000..7b10d56041 --- /dev/null +++ b/lib/date/format.rb @@ -0,0 +1,529 @@ +# format.rb: Written by Tadayoshi Funaba 1999-2002 +# $Id: format.rb,v 2.7 2002-05-17 21:20:28+09 tadf Exp $ + +class Date + + 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 + } + + def self.__strptime(str, fmt, elem) + fmt.scan(/%[EO]?.|./o) do |c| + cc = c.sub(/\A%[EO]?(.)\Z/o, '%\\1') + case cc + when /\A\s/o + str.sub!(/\A[\s\v]+/o, '') + when '%A', '%a' + return unless str.sub!(/\A([a-z]+)\b/io, '') + val = DAYS[$1.downcase] || ABBR_DAYS[$1.downcase] + return unless val + elem[:wday] = val + when '%B', '%b', '%h' + return unless str.sub!(/\A([a-z]+)\b/io, '') + val = MONTHS[$1.downcase] || ABBR_MONTHS[$1.downcase] + return unless val + elem[:mon] = val + when '%C' + return unless str.sub!(/\A(\d+)/o, '') + val = $1.to_i + elem[:cent] = val + when '%c' + return unless __strptime(str, '%a %b %e %H:%M:%S %Y', elem) + when '%D' + return unless __strptime(str, '%m/%d/%y', elem) + when '%d', '%e' + return unless str.sub!(/\A ?(\d+)/o, '') + val = $1.to_i + return unless (1..31) === val + elem[:mday] = val + when '%F' + return unless __strptime(str, '%Y-%m-%d', elem) + when '%G' + return unless str.sub!(/\A([-+]?\d+)/o, '') + val = $1.to_i + elem[:cwyear] = val + when '%g' + return unless str.sub!(/\A(\d+)/o, '') + val = $1.to_i + return unless (0..99) === val + elem[:cwyear] = val + elem[:cent] ||= if val >= 69 then 19 else 20 end + when '%H', '%k' + return unless str.sub!(/\A ?(\d+)/o, '') + val = $1.to_i + return unless (0..24) === val + elem[:hour] = val + when '%I', '%l' + return unless str.sub!(/\A ?(\d+)/o, '') + val = $1.to_i + return unless (1..12) === val + elem[:hour] = val + when '%j' + return unless str.sub!(/\A(\d+)/o, '') + val = $1.to_i + return unless (1..366) === val + elem[:yday] = val + when '%M' + return unless str.sub!(/\A(\d+)/o, '') + val = $1.to_i + return unless (0..59) === val + elem[:min] = val + when '%m' + return unless str.sub!(/\A(\d+)/o, '') + val = $1.to_i + return unless (1..12) === val + elem[:mon] = val + when '%n' + return unless __strptime(str, ' ', elem) + when '%p', '%P' + return unless str.sub!(/\A([ap])(?:m\b|\.m\.)/io, '') + elem[:merid] = if $1.downcase == 'a' then 0 else 12 end + when '%R' + return unless __strptime(str, '%H:%M', elem) + when '%r' + return unless __strptime(str, '%I:%M:%S %p', elem) + when '%S' + return unless str.sub!(/\A(\d+)/o, '') + val = $1.to_i + return unless (0..60) === val + elem[:sec] = val + when '%s' + return unless str.sub!(/\A(\d+)/o, '') + val = $1.to_i + elem[:seconds] = val + when '%T' + return unless __strptime(str, '%H:%M:%S', elem) + when '%t' + return unless __strptime(str, ' ', elem) + when '%U', '%W' + return unless str.sub!(/\A(\d+)/o, '') + val = $1.to_i + return unless (0..53) === val + elem[if c == '%U' then :wnum0 else :wnum1 end] = val + when '%u' + return unless str.sub!(/\A(\d+)/o, '') + val = $1.to_i + return unless (1..7) === val + elem[:cwday] = val + when '%V' + return unless str.sub!(/\A(\d+)/o, '') + val = $1.to_i + return unless (1..53) === val + elem[:cweek] = val + when '%v' + return unless __strptime(str, '%e-%b-%Y', elem) + when '%w' + return unless str.sub!(/\A(\d+)/o, '') + val = $1.to_i + return unless (0..6) === val + elem[:wday] = val + when '%X' + return unless __strptime(str, '%H:%M:%S', elem) + when '%x' + return unless __strptime(str, '%m/%d/%y', elem) + when '%Y' + return unless str.sub!(/\A([-+]?\d+)/o, '') + val = $1.to_i + elem[:year] = val + when '%y' + return unless str.sub!(/\A(\d+)/o, '') + val = $1.to_i + return unless (0..99) === val + elem[:year] = val + elem[:cent] ||= if val >= 69 then 19 else 20 end + when '%Z', '%z' + return unless str.sub!(/\A([a-z0-9:+-]+(?:\s+dst\b)?)/io, '') + val = $1 + elem[:zone] = val + offset = zone_to_diff(val) + elem[:offset] = offset + when '%%' + return unless str.sub!(/\A%/o, '') + when '%+' + return unless __strptime(str, '%a %b %e %H:%M:%S %Z %Y', elem) + when '%1' + return unless str.sub!(/\A(\d+)/o, '') + val = $1.to_i + elem[:jd] = val + when '%2' + return unless __strptime(str, '%Y-%j', elem) + when '%3' + return unless __strptime(str, '%F', elem) + else + return unless str.sub!(Regexp.new('\\A' + Regexp.quote(c)), '') + end + end + + if cent = elem.delete(:cent) + if elem[:cwyear] + elem[:cwyear] += cent * 100 + end + if elem[:year] + elem[:year] += cent * 100 + end + end + + if merid = elem.delete(:merid) + if elem[:hour] + elem[:hour] %= 12 + elem[:hour] += merid + end + end + + str + end + + private_class_method :__strptime + + def self._strptime(str, fmt='%F') + elem = {} + elem if __strptime(str.dup, fmt, elem) + end + + PARSE_MONTHPAT = ABBR_MONTHS.keys.join('|') + PARSE_DAYPAT = ABBR_DAYS. keys.join('|') + + def self._parse(str, comp=false) + str = str.dup + + str.gsub!(/[^-+.\/:0-9a-z]+/ino, ' ') + + # day + if str.sub!(/(#{PARSE_DAYPAT})\S*/ino, ' ') + wday = ABBR_DAYS[$1.downcase] + end + + # time + if str.sub!( + /(\d+):(\d+)(?::(\d+))? + (?: + \s* + ([ap])(?:m\b|\.m\.) + )? + (?: + \s* + ( + [a-z]+(?:\s+dst)?\b + | + [-+]\d+(?::?\d+) + ) + )? + /inox, + ' ') + hour = $1.to_i + min = $2.to_i + sec = $3.to_i if $3 + + if $4 + hour %= 12 + if $4.downcase == 'p' + hour += 12 + end + end + + zone = $5 + end + + # eu + if str.sub!( + /(\d+)\S* + \s+ + (#{PARSE_MONTHPAT})\S* + (?: + \s+ + (-?\d+) + )? + /inox, + ' ') + mday = $1.to_i + mon = ABBR_MONTHS[$2.downcase] + + if $3 + year = $3.to_i + if $3.size > 2 + comp = false + end + end + + # us + elsif str.sub!( + /(#{PARSE_MONTHPAT})\S* + \s+ + (\d+)\S* + (?: + \s+ + (-?\d+) + )? + /inox, + ' ') + mon = ABBR_MONTHS[$1.downcase] + mday = $2.to_i + + if $3 + year = $3.to_i + if $3.size > 2 + comp = false + end + end + + # iso + elsif str.sub!(/([-+]?\d+)-(\d+)-(-?\d+)/no, ' ') + year = $1.to_i + mon = $2.to_i + mday = $3.to_i + + if $1.size > 2 + comp = false + elsif $3.size > 2 + comp = false + mday, mon, year = year, mon, mday + end + + # jis + elsif str.sub!(/([MTSH])(\d+)\.(\d+)\.(\d+)/no, ' ') + e = { 'M'=>1867, + 'T'=>1911, + 'S'=>1925, + 'H'=>1988 + }[$1] + year = $2.to_i + e + mon = $3.to_i + mday = $4.to_i + + # vms + elsif str.sub!(/(-?\d+)-(#{PARSE_MONTHPAT})[^-]*-(-?\d+)/ino, ' ') + mday = $1.to_i + mon = ABBR_MONTHS[$2.downcase] + year = $3.to_i + + if $1.size > 2 + comp = false + year, mon, mday = mday, mon, year + elsif $3.size > 2 + comp = false + end + + # sla + elsif str.sub!(%r|(-?\d+)/(\d+)(?:/(-?\d+))?|no, ' ') + mon = $1.to_i + mday = $2.to_i + + if $3 + year = $3.to_i + if $3.size > 2 + comp = false + end + end + + if $1.size > 2 + comp = false + year, mon, mday = mon, mday, year + end + + # ddd + elsif str.sub!( + /([-+]?)(\d{4,14}) + (?: + \s* + T? + \s* + (\d{2,6}) + )? + (?: + \s* + ( + Z + | + [-+]\d{2,4} + ) + \b + )? + /nox, + ' ') + case $2.size + when 4 + mon = $2[ 0, 2].to_i + mday = $2[ 2, 2].to_i + when 6 + year = ($1 + $2[ 0, 2]).to_i + mon = $2[ 2, 2].to_i + mday = $2[ 4, 2].to_i + when 8, 10, 12, 14 + year = ($1 + $2[ 0, 4]).to_i + mon = $2[ 4, 2].to_i + mday = $2[ 6, 2].to_i + hour = $2[ 8, 2].to_i if $2.size >= 10 + min = $2[10, 2].to_i if $2.size >= 12 + sec = $2[12, 2].to_i if $2.size >= 14 + comp = false + end + if $3 + case $3.size + when 2, 4, 6 + hour = $3[ 0, 2].to_i + min = $3[ 2, 2].to_i if $3.size >= 4 + sec = $3[ 4, 2].to_i if $3.size >= 6 + end + end + zone = $4 + end + + if comp and year + if year >= 0 and year <= 99 + if year >= 69 + year += 1900 + else + year += 2000 + end + end + end + + elem = {} + elem[:year] = year if year + elem[:mon] = mon if mon + elem[:mday] = mday if mday + elem[:hour] = hour if hour + elem[:min] = min if min + elem[:sec] = sec if sec + elem[:zone] = zone if zone + offset = zone_to_diff(zone) if zone + elem[:offset] = offset if offset + elem[:wday] = wday if wday + elem + end + + def self.zone_to_diff(str) + abb, dst = str.downcase.split(/\s+/o, 2) + if ZONES.include?(abb) + offset = ZONES[abb] + offset += 3600 if dst + elsif /\A([+-])(\d{2}):?(\d{2})?\Z/no =~ str + offset = $2.to_i * 3600 + $3.to_i * 60 + offset *= -1 if $1 == '-' + end + offset + end + + def strftime(fmt='%F') + o = '' + fmt.scan(/%[EO]?.|./o) do |c| + cc = c.sub(/^%[EO]?(.)$/o, '%\\1') + case cc + when '%A'; o << DAYNAMES[wday] + when '%a'; o << ABBR_DAYNAMES[wday] + when '%B'; o << MONTHNAMES[mon] + when '%b'; o << ABBR_MONTHNAMES[mon] + when '%C'; o << '%02d' % (year / 100.0).floor # P2,ID + when '%c'; o << strftime('%a %b %e %H:%M:%S %Y') + when '%D'; o << strftime('%m/%d/%y') # P2,ID + when '%d'; o << '%02d' % mday + when '%e'; o << '%2d' % mday + when '%F'; o << strftime('%Y-%m-%d') # ID + when '%G'; o << '%.4d' % cwyear # ID + when '%g'; o << '%02d' % (cwyear % 100) # ID + when '%H'; o << '%02d' % hour + when '%h'; o << strftime('%b') # P2,ID + when '%I'; o << '%02d' % ((hour % 12).nonzero? or 12) + when '%j'; o << '%03d' % yday + when '%k'; o << '%2d' % hour # AR,TZ,GL + when '%l'; o << '%2d' % ((hour % 12).nonzero? or 12) # AR,TZ,GL + when '%M'; o << '%02d' % min + when '%m'; o << '%02d' % mon + when '%n'; o << "\n" # P2,ID + when '%P'; o << if hour < 12 then 'am' else 'pm' end # GL + when '%p'; o << if hour < 12 then 'AM' else 'PM' end + when '%R'; o << strftime('%H:%M') # ID + when '%r'; o << strftime('%I:%M:%S %p') # P2,ID + when '%S'; o << '%02d' % sec + when '%s' # TZ,GL + d = rjd - type.jd_to_rjd(type.civil_to_jd(1970,1,1), 0) + s = (d * 86400).to_i + o << '%d' % s + when '%T'; o << strftime('%H:%M:%S') # P2,ID + when '%t'; o << "\t" # P2,ID + when '%U', '%W' + a = type.civil_to_jd(year, 1, 1, ns?) + 6 + k = if c == '%U' then 0 else 1 end + w = (jd - (a - ((a - k) + 1) % 7) + 7) / 7 + o << '%02d' % w + when '%u'; o << '%d' % cwday # P2,ID + when '%V'; o << '%02d' % cweek # P2,ID + when '%v'; o << strftime('%e-%b-%Y') # AR,TZ + when '%w'; o << '%d' % wday + when '%X'; o << strftime('%H:%M:%S') + when '%x'; o << strftime('%m/%d/%y') + when '%Y'; o << '%.4d' % year + when '%y'; o << '%02d' % (year % 100) + when '%Z'; o << zone + when '%z'; o << zone # ID + when '%%'; o << '%' + when '%+'; o << strftime('%a %b %e %H:%M:%S %Z %Y') # TZ + when '%1'; o << '%d' % jd + when '%2'; o << strftime('%Y-%j') + when '%3'; o << strftime('%Y-%m-%d') + else; o << c + end + end + o + end + +# alias_method :format, :strftime + + def asctime() strftime('%c') end + + alias_method :ctime, :asctime + +end + +class DateTime < Date + + def self._strptime(str, fmt='%FT%T%Z') + super(str, fmt) + end + + def strftime(fmt='%FT%T%Z') + super(fmt) + end + +end -- cgit v1.2.3