Re: [Pan-users] Scoring based on arbitrary headers?

[Duncan]

Jim Henderson posted on Thu, 08 Jan 2015 21:27:05 +0000 as excerpted:

> On Thu, 08 Jan 2015 19:02:20 +0000, Jim Henderson wrote:
> 
>>> That is of course assuming there wasn't some bug in your regex or the
>>> like, that failed the expected match. =:^\
>> 
>> My initial instinct was that it should have matched, but I realize now
>> that the address I put in didn't escape the '.' characters, which may
>> be causing it to fail.  I see that the From: rule example does, so I'll
>> try that when I have a minute free today.
> 
> Nope, changed the rule and no change.

Yeah.  Failure to escape the '.' characters (which in regex match any 
single character unless escaped) would simply result in, for example, 
sample.com and samplexcom both matching an unescaped sample.com regex 
(you'd use the escaped form, sample\.com, to match the dot specifically).

So the unescaped form would result in additional false matches, not 
additional match-failures, which if it's match-failures you're seeing, 
means the unescaped . can't be the reason.

(Unless of course there's a bug, but the actual regex processing code is 
surely library code, not pan itself, and if there was a bug in that you'd 
very likely be seeing it in other packages depending on that lib as 
well...)

-- 
Duncan - List replies preferred.   No HTML msgs.
"Every nonfree program has a lord, a master --
and if you use the program, he is your master."  Richard Stallman