Parser issue detected

[jogli5er]

We found examples in which our parser fails to produce a correct onion uri. (See example below)
To fix the issue, I will implement a preciser Regex (as discussed on slack): Make it exactly 16 or 56 characters long, disallow usage of chars except a-z2-7
Example:
<a href="/r?q=hard+candy+hidden+wiki&amp;l=http%253A%252F%252Fwikitjen6oesqvzj.onion%252Fwiki%252Findex.php%253Ftitle%253DMain_Page%2526action%253Dedit%2526section%253D1&amp;p=1&amp;u=116897">