asagi_comment_to_html.py

def convert_comment(a):
	# basic html escape
	a = a.replace("&", "&")
	a = a.replace("\"", """)
	a = a.replace("\'", "'")
	a = a.replace("<", "&lt;")
	a = a.replace(">", "&gt;")
	
	# newlines
	a = a.replace("\r\n", "\n")
	
	# fix [/spoiler] that should be </span>
	if "&lt;span" in a:
		a = re.sub("(&lt;span(.+?))\[\/spoiler\]", "\\1</span>", a)
	
	# spoilers
	# needs to be first because they will end other stuff like quotes
	for idx in range(10):
		if not "[spoiler]" in a: break
		a = re.sub("\[spoiler\](.*?)\[\/spoiler\]", "<s>\\1</s>", a, flags=re.S)
	
	# remaining tags
	if "[" in a:
		a = re.sub("\[banned\](.*?)\[\/banned\]", "<strong style=\"color: red;\">\\1</strong>", a, flags=re.S)
		a = re.sub("\[code\](.*?)\[\/code\]", "<pre class=\"prettyprint\">\\1</pre>", a, flags=re.S)
		a = re.sub("\[math\](.*?)\[\/math\]", "<span class=\"math\">\\1</span>", a, flags=re.S)
		a = re.sub("\[eqn\](.*?)\[\/eqn\]", "<div class=\"math\">\\1</div>", a, flags=re.S)
		a = re.sub("\[sjis\](.*?)\[\/sjis\]", "<span class=\"sjis\">\\1</span>", a, flags=re.S)
		a = re.sub("\[shiftjis\](.*?)\[\/shiftjis\]", "<span class=\"sjis\">\\1</span>", a, flags=re.S)
	
	if "&gt;" in a:
		# quotelinks
		a = re.sub("(&gt;&gt;(\d+))", "<a>\\1</a>", a)
		a = re.sub("(&gt;&gt;&gt;\/(\w+)\/(\d+)?)", "<a>\\1</a>", a)
		
		# greentext
		a = re.sub("(^|\n)( )?(&gt;(?:.*?))(?=$|\n|<\/?s>)", "\\1\\2<span class=\"quote\">\\3</span>", a, flags=re.S)
	
	if ":lit]" in a:
		a = re.sub("\[(\/?[a-z]+?):lit\]", "[\\1]", a)
	
	a = a.replace("\n", "<br>")
	
	return a