days, hours, mins, secs, ms = m.groups()
else:
m = re.match(
- r'''(?ix)(?:P?T)?
+ r'''(?ix)(?:P?
+ (?:
+ [0-9]+\s*y(?:ears?)?\s*
+ )?
+ (?:
+ [0-9]+\s*m(?:onths?)?\s*
+ )?
+ (?:
+ [0-9]+\s*w(?:eeks?)?\s*
+ )?
(?:
(?P<days>[0-9]+)\s*d(?:ays?)?\s*
)?
+ T)?
(?:
(?P<hours>[0-9]+)\s*h(?:ours?)?\s*
)?