Problems with separators / non-allowed characters

[jcbrockschmidt]

Both issues I've encountered appear to be parser related:

1. If a swear word is at the very end of a string and it's last character of a swear word has a non-allowed character before it, it will not be censored. So f_u_c_k won't be censored, but f_u_c_k_ and f_u_ck will be.
2. If too many characters in a swear word have separators between them, the swear word won't be censored. This appears to happen when the number of separations exceeds MAX_NUMBER_COMBINATIONS. So w i l l i es_ will be censored but not w i l l i e s_ (underscore included to avoid issue described in 1).