def smart_urlquote(url):
try:
scheme, netloc, path, query, fragment = urlsplit(url)
try:
netloc = netloc.encode('idna').decode('ascii')
except UnicodeError:
pass
else:
url = urlunsplit((scheme, netloc, path, query, fragment))
except ValueError:
pass
if '%' not in url or _unquoted_percents_re.search(url):
url = quote(encoding.force_bytes(url), safe=b'!*\'();:@&=+$,/?#[]~')
return encoding.force_text(url)
def urlize(text):
words = _word_split_re.split(encoding.force_text(text))
opening_re = lambda s: re.compile('(^%s)' % s)
closing_re = lambda s: re.compile('(%s$)' % s)
for i, word in enumerate(words):
match = None
if '.' in word or '@' in word or ':' in word:
lead, middle, trail = '', word, ''
for opening, closing in _WRAPPING_PUNCTUATION:
op_m = opening_re(opening).split(middle)
middle = op_m[-1]
if len(op_m) > 1:
lead = lead + op_m[1]
clo_m = closing_re(closing).split(middle)
opening_count = len(re.findall(opening, middle))
closing_count = len(re.findall(closing, middle))
if closing_count == opening_count + 1:
middle = clo_m[0]
if len(clo_m) > 1:
trail = clo_m[1] + trail
for punctuation in _TRAILING_PUNCTUATION:
m = closing_re(punctuation).split(middle)
middle = m[0]
if len(m) > 1:
trail = m[1] + trail
url = None
if _simple_url_re.match(middle):
url = smart_urlquote(middle)
elif _simple_url_2_re.match(middle):
url = smart_urlquote('http://%s' % middle)
if url:
middle = '<a target="_blank" href="%s">%s</a>' % (url, middle)
words[i] = '%s%s%s' % (lead, middle, trail)
else:
words[i] = word
return ''.join(words)
