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9e3d9a2a00
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@527 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
93 lines
2.2 KiB
Ruby
93 lines
2.2 KiB
Ruby
module ParseDate
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MONTHS = {
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'jan' => 1, 'feb' => 2, 'mar' => 3, 'apr' => 4,
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'may' => 5, 'jun' => 6, 'jul' => 7, 'aug' => 8,
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'sep' => 9, 'oct' =>10, 'nov' =>11, 'dec' =>12 }
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MONTHPAT = MONTHS.keys.join('|')
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DAYS = {
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'sun' => 0, 'mon' => 1, 'tue' => 2, 'wed' => 3,
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'thu' => 4, 'fri' => 5, 'sat' => 6 }
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DAYPAT = DAYS.keys.join('|')
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def parsedate(date, guess=false)
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# part of ISO 8601
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# yyyy-mm-dd | yyyy-mm | yyyy
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# date hh:mm:ss | date Thh:mm:ss
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if date =~ /^(\d\d\d\d)-?(?:(\d\d)-?(\d\d)?)? *T?(?:(\d\d):?(\d\d):?(\d\d)?)?$/
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return $1.to_i,
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if $2 then $2.to_i else 1 end,
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if $3 then $3.to_i else 1 end,
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if $4 then $4.to_i end,
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if $5 then $5.to_i end,
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if $6 then $6.to_i end,
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nil,
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nil
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end
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date = date.dup
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if date.sub!(/(#{DAYPAT})[a-z]*,?/i, ' ')
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wday = DAYS[$1.downcase]
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end
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if date.sub!(/(\d+):(\d+)(?::(\d+))?(?:\s*(am|pm))?(?:\s+([a-z]{1,4}(?:\s+[a-z]{1,4})?|[-+]\d{4}))?/i, ' ')
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hour = $1.to_i
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min = $2.to_i
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if $3
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sec = $3.to_i
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end
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if $4 == 'pm'
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hour += 12
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end
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if $5
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zone = $5
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end
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end
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if date.sub!(/(\d+)\S*\s+(#{MONTHPAT})\S*(?:\s+(\d+))?/i, ' ')
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mday = $1.to_i
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mon = MONTHS[$2.downcase]
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if $3
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year = $3.to_i
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end
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elsif date.sub!(/(#{MONTHPAT})\S*\s+(\d+)\S*,?(?:\s+(\d+))?/i, ' ')
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mon = MONTHS[$1.downcase]
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mday = $2.to_i
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if $3
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year = $3.to_i
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end
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elsif date.sub!(/(\d+)\/(\d+)(?:\/(\d+))/, ' ')
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mon = $1.to_i
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mday = $2.to_i
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if $3
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year = $3.to_i
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end
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elsif date.sub!(/(\d+)-(#{MONTHPAT})-(\d+)/i, ' ')
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mday = $1.to_i
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mon = MONTHS[$2.downcase]
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year = $3.to_i
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elsif date.sub!(/(\d+)-(#{MONTHPAT})-(\d+)/i, ' ')
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mday = $1.to_i
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mon = MONTHS[$2.downcase]
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year = $3.to_i
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end
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if date.sub!(/\d{4}/i, ' ')
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year = $&.to_i
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elsif date.sub!(/\d\d/i, ' ')
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year = $&.to_i
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end
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if guess and year
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if year < 100
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if year >= 69
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year += 1900
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else
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year += 2000
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end
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end
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end
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return year, mon, mday, hour, min, sec, zone, wday
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end
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module_function :parsedate
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end
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if __FILE__ == $0
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p Time.now.asctime
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p ParseDate.parsedate(Time.now.asctime)
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end
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