Update url regex

Author: sujanadiga

ansi2html/converter.py

@@ -176,9 +176,12 @@ def append_color_unless_default(output, color, default, negative, neg_css_class)
 
 
 def linkify(line, latex_mode):
-    url_matcher = re.compile('(https?://(?:[-\w.]|(?:%[\da-fA-F]{2}))+)')
+    url_matcher = re.compile(
+        r'(((((https?|ftps?|gopher|telnet|nntp)://)|'
+        r'(mailto:|news:))(%[0-9A-Fa-f]{2}|[-()_.!~*'
+        r'\';/?:@&=+$,A-Za-z0-9])+)([).!\';/?:,][[:blank:]])?)')
     if latex_mode:
-        return url_matcher.sub(r'\\\\url{\1}', line)
+        return url_matcher.sub(r'\\url{\1}', line)
     else:
         return url_matcher.sub(r'<a href="\1">\1</a>', line)