[Gllug] More Procmail

[Jackson, Harry]

> -----Original Message-----
> From: Jonathan Dye [mailto:jonathan.dye at automationpartnership.com]
> Sent: 26 February 2002 08:15
> To: gllug at linux.co.uk
> Subject: Re: [Gllug] More Procmail
> 
> 
> >:0 Bh:
> >* -5^0
> >* 1^0 .*money
> >* 1^0 .*loan
> >* 1^0 .*cash
> >* 1^0 .*apr
> >* 1^0 .*free
> >$SPAMFILE
> 
> I've never seen the 1^0 syntax before, what does it mean?  I 
> can't find
> anything about it in the man pages for procmail or regular 
> expressions.

>From the man page

This can be described by the following concise formula: 4 n n k-1 x - 1 w *
Sum x = w * ------- k=1 x - 1 It represents the total added score for this
condition if n matches are found. 

Note that the following case distinctions can be made: 

x=0 

Only the first match will contribute w to the score. Any subsequent matches
are ignored. 

x=1 

Every match will contribute the same w to the score. The score grows
linearly with the number of matches found. 



I would appreciate if someone could please enlighten me to this particularly
the left side of the equation.


                                             n
                   n   k-1               x   - 1
              w * Sum x    = w * ----------
                   k=1                    x - 1



Harry







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