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-rw-r--r--lib/parsedate.rb81
1 files changed, 55 insertions, 26 deletions
diff --git a/lib/parsedate.rb b/lib/parsedate.rb
index 1c1dda7..68550c6 100644
--- a/lib/parsedate.rb
+++ b/lib/parsedate.rb
@@ -4,39 +4,68 @@ module ParseDate
'may' => 5, 'jun' => 6, 'jul' => 7, 'aug' => 8,
'sep' => 9, 'oct' =>10, 'nov' =>11, 'dec' =>12 }
MONTHPAT = MONTHS.keys.join('|')
- DAYPAT = 'mon|tue|wed|thu|fri|sat|sun'
+ DAYS = {
+ 'sun' => 0, 'mon' => 1, 'tue' => 2, 'wed' => 3,
+ 'thu' => 4, 'fri' => 5, 'sat' => 6 }
+ DAYPAT = DAYS.keys.join('|')
def parsedate(date)
- if date.sub!(/(#{DAYPAT})/i, ' ')
- dayofweek = $1
+ # part of ISO 8601
+ # yyyy-mm-dd | yyyy-mm | yyyy
+ # date hh:mm:ss | date Thh:mm:ss
+ if date =~ /^(\d\d\d\d)-?(?:(\d\d)-?(\d\d)?)? *T?(?:(\d\d):?(\d\d):?(\d\d)?)?$/
+ return $1.to_i,
+ if $2 then $2.to_i else 1 end,
+ if $3 then $3.to_i else 1 end,
+ if $4 then $4.to_i end,
+ if $5 then $5.to_i end,
+ if $6 then $6.to_i end,
+ nil,
+ nil
end
- if date.sub!(/\s+(\d+:\d+(:\d+)?)/, ' ')
- time = $1
+ date = date.dup
+ if date.sub!(/(#{DAYPAT})[a-z]*,?/i, ' ')
+ wday = DAYS[$1.downcase]
end
- if date =~ /19(\d\d)/
- year = Integer($1)
+ if date.sub!(/(\d+):(\d+)(?::(\d+))?\s*(am|pm)?\s*(?:\s+([a-z]{1,4}(?:\s+[a-z]{1,4})?|[-+]\d{4}))?/i, ' ')
+ hour = $1.to_i
+ min = $2.to_i
+ if $3
+ sec = $3.to_i
+ end
+ if $4 == 'pm'
+ hour += 12
+ end
+ if $5
+ zone = $5
+ end
end
- if date.sub!(/\s*(\d+)\s+(#{MONTHPAT})\S*\s+/i, ' ')
- dayofmonth = $1.to_i
- monthname = $2
- elsif date.sub!(/\s*(#{MONTHPAT})\S*\s+(\d+)\s+/i, ' ')
- monthname = $1
- dayofmonth = $2.to_i
- elsif date.sub!(/\s*(#{MONTHPAT})\S*\s+(\d+)\D+/i, ' ')
- monthname = $1
- dayofmonth = $2.to_i
- elsif date.sub!(/\s*(\d\d?)\/(\d\d?)/, ' ')
- month = $1
- dayofmonth = $2.to_i
+ if date.sub!(/(\d+)\S*\s+(#{MONTHPAT})\S*(?:\s+(\d+))?/i, ' ')
+ mday = $1.to_i
+ mon = MONTHS[$2.downcase]
+ if $3
+ year = $3.to_i
+ end
+ elsif date.sub!(/(#{MONTHPAT})\S*\s+(\d+)\S*\s*,?(?:\s+(\d+))?/i, ' ')
+ mon = MONTHS[$1.downcase]
+ mday = $2.to_i
+ if $3
+ year = $3.to_i
+ end
+ elsif date.sub!(/(\d+)\/(\d+)(?:\/(\d+))/, ' ')
+ mon = $1.to_i
+ mday = $2.to_i
+ if $3
+ year = $3.to_i
+ end
end
- if monthname
- month = MONTHS[monthname.downcase]
- end
- if ! year && date =~ /\d\d/
- year = Integer($&)
- end
- return year, month, dayofmonth
+ return year, mon, mday, hour, min, sec, zone, wday
end
module_function :parsedate
end
+
+if __FILE__ == $0
+ p Time.now.asctime
+ p ParseDate.parsedate(Time.now.asctime)
+end