[lug] Procmail Recipe to Match High-ASCII Characters?

Bill Thoen bthoen at gisnet.com
Thu Feb 8 14:26:20 MST 2007

Never mind... I solved it:

* ^Subject:\/.*
* 1^0
*  4^1 $MATCH ?? [^0-9 A-Za-z]
* -1^1 $MATCH ?? .

Bill Thoen wrote:
> Is there a regex that can match a range of high-ascii characters? I'm 
> trying to write a procmail recipe that can tell if a mail message's 
> Subject: line contains 25% or more non-english characters and tag it 
> as potential spam.
> Or should I reverse the logic and tag the message as spam if 25% of 
> the characters are not in the desired range (e.g. [^0-9 A-Za-z]). 
> Then, of course, I need to be able to count the total number of 
> characters in the line and the total number of characters that 
> match/don't match the filter. Can I do this with Procmail, or is there 
> an easier way catch non-english mail?
> - Bill Thoen
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