从txt里解析url的正则(python版)

#from https://github.com/waylan/Python-Markdown/blob/master/markdown/inlinepatterns.py
AUTOLINK_RE = r'<((?:[Ff]|[Hh][Tt])[Tt][Pp][Ss]?://[^>]*)>' # <http://www.123.com>
AUTOMAIL_RE = r'<([^> \!]*@[^> ]*)>'               # <me@example.com>