Re: Stopping Sporge tutorial using NewsProxy (where do we get nfilter.dat)?

de M.L. 01/31/2008 08:00

> [Peter J. Ross previously wrote:]
>>> Without XHDR (or HEAD implemented in the filtering software),
>>> anti-sporge filters aren't likely to work very well, though you can
>>> detect a few patterns, such as an absence of lower-case letters in
>>> the right hand side of a Message-ID or email address, which are
>>> characteristic of *some* sporge posts and very few non-sporge posts.
>>
>> Nice tip.

>> Would this filter satisfy that criterion?
>> * drop Message-ID:.*[^a-z].*
>
> No. That would drop any article whose Message-ID contained any
> character other than lower-case a-z, including "@" - IOW, it would
> drop all articles.
>
> Try
> * drop Message-ID:.*@[^a-z]+>.*
>
> This should match a string of characters, none of which is a
> lower-case letter, between "@" and ">".
>
> The final ".*" takes account of any trailing white space after the
> Message-ID's closing angle-bracket: " *", "[ ]*" or "s*" would do so
> more efficiently, but I don't know which, if any, would work with
> NewsProxy, since I don't know what kind of regular expressions it
> uses. (And I can't install it myself, since I'd have to install
> Windows first.)

Thank you for the correction Peter J. Ross.