Django snippets

def ultralize(text, mini=False,trim_url_limit=None, nofollow=False, autoescape=False):
	text = unicodedata.normalize('NFKD', text).encode('ascii','ignore')
	trim_url = lambda x, limit=trim_url_limit: limit is not None and (len(x) > limit and ('%s...' % x[:max(0, limit - 3)])) or x
	safe_input = isinstance(text, SafeData)
	words = word_split_re.split(force_unicode(text))
	nofollow_attr = nofollow and ' rel="nofollow"' or ''
	has_stuff = False
	for i, word in enumerate(words):
		if word == "fun1":
			word = "http://bleachexile.com/exec/images/emoticons/th_funone3kk.gif"
		match = None
		if '.' in word or '@' in word or ':' in word:
			match = punctuation_re.match(word)
		if match:
			lead, middle, trail = match.groups()
			# Make URL we want to point to.
			url = None
			if middle.startswith('http://') or middle.startswith('https://'):
				url = urlquote(middle, safe='/&=:;#?+*')
			elif middle.startswith('www.') or ('@' not in middle and \
					middle and middle[0] in string.ascii_letters + string.digits and \
					(middle.endswith('.org') or middle.endswith('.net') or middle.endswith('.com'))):
				url = urlquote('http://%s' % middle, safe='/&=:;#?+*')
			elif '@' in middle and not ':' in middle and simple_email_re.match(middle):
				url = 'mailto:%s' % middle
				nofollow_attr = ''
			# Make link.
			if url:
				trimmed = trim_url(middle)
				ytregex = re.compile(r"^(http://)?(www\.)?(youtube\.com/watch\?v=)(?P<id>[A-Za-z0-9\-=_]{11})")
				vimeoregex = re.compile(r"^(http://)?(www\.)?(vimeo\.com/)(?P<id>\d+)")
				dmregex = re.compile(r"^(http://)?(www\.)?(dailymotion\.com/video/)(?P<id>[A-Za-z0-9]+)")
				ytmatch = ytregex.match(middle)
				vimeomatch = vimeoregex.match(middle)
				dmmatch = dmregex.match(middle)
				if ytmatch:
					video_id = ytmatch.group('id')
				if vimeomatch:
					video_id = vimeomatch.group('id')
				if dmmatch:
					video_id = dmmatch.group('id')
				if autoescape and not safe_input:
					lead, trail = escape(lead), escape(trail)
					url, trimmed = escape(url), escape(trimmed)
				if any(s in middle for s in ['.jpg', '.JPG', '.gif', '.GIF', '.bmp', '.BMP', '.png', '.PNG', '.jpeg', '.JPEG', 'gstatic.com/images']):
					if has_stuff and mini:
						middle = ''
					else:
						if mini:
							middle = '<a rel="lightbox" href="%s"><img class="contentimg" style="display:block; max-width:100%%;max-height:300px; padding-top:5px; margin-bottom:3px" src="%s"></a>' % (url, url)
						else:
							middle = '<a rel="lightbox" href="%s"><img class="contentimg" style="display:block; max-width:100%%;padding-top:5px; margin-bottom:3px" src="%s"></a>' % (url, url)
						has_stuff = True
				elif middle.startswith("http://www.youtube.com/watch?v=") or middle.startswith("www.youtube.com/watch?v="):
					if ytmatch:
						if has_stuff and mini:
							middle = ''
						else:
							middle = "<iframe style=\"display:block;padding-top:5px; margin-bottom:3px\" title=\"YouTube video player\" width=\"600\" height=\"365\" src=\"http://www.youtube.com/embed/%s\" frameborder=\"0\" allowfullscreen></iframe>" % (video_id + "?autohide=1&wmode=transparent")
							has_stuff = True
				elif middle.startswith("http://www.vimeo.com") or middle.startswith("www.vimeo.com") or middle.startswith("vimeo.com") or middle.startswith("http://vimeo.com"):
					if vimeomatch:
						if has_stuff and mini:
							middle = ''
						else:
							middle = "<iframe style='display:block;'src=\"http://player.vimeo.com/video/%s?title=0&amp;byline=0&amp;portrait=0\" width=\"600\" height=\"405\" frameborder=\"0\"></iframe>" % (video_id)
							has_stuff = True
				elif middle.startswith("http://www.dailymotion.com") or middle.startswith("www.dailymotion.com") or middle.startswith("dailymotion.com") or middle.startswith("http://dailymotion.com"):
					if dmmatch:
						if has_stuff and mini:
							middle = ''
						else:
							middle = "<iframe frameborder='0' width='560' height='315' src='http://www.dailymotion.com/embed/video/%s?width=560'></iframe>" % (video_id)
							has_stuff = True
				elif middle.endswith(".ogg") or middle.endswith(".mp3"):
					if has_stuff and mini:
						middle = ''
					else:
						middle = "<audio style=\"display:block;padding-top:5px; margin-bottom:6px\" src=\"%s\" controls=\"controls\"></audio>" % (url)
						has_stuff = True
				else:
					if has_stuff and mini:
						middle = ''
					else:
						middle = "<a style='display:block;' target='_blank' href='%s'%s>%s</a>" % (url, nofollow_attr, trimmed)
						has_stuff = True
				words[i] = mark_safe('%s%s%s' % (lead, middle, trail))
			else:
				if safe_input:
					words[i] = mark_safe(word)
				elif autoescape:
					words[i] = escape(word)
		elif safe_input:
			words[i] = mark_safe(word)
		elif autoescape:
			words[i] = escape(word)
	return mark_safe(u''.join(words))

ultralize.is_safe=True
ultralize.needs_autoescape = True
ultralize = stringfilter(ultralize)
register.filter(ultralize)
ultralize = allow_lazy(ultralize, unicode)