[TriLUG] Regular Expression Help

[Nathan Conrad]

By default, postfix's prce (perl-compatible regular expressions) are
case-insensitive. In order to make them case sensitive, add an i flag
to the end:

/^Subject: Re: [A-Z]{2,8}, [a-zA-Z]+ [a-zA-Z]+ [a-zA-Z]+$/i     REJECT

Be careful about matching the various ways that subject can be
capitalized; subject is different from Subject with the i flag turned
on.

-Nathan

On Wed, Dec 24, 2003 at 01:26:26PM -0500, Tarus Balog wrote:
> 
> On Dec 24, 2003, at 11:55 AM, Nathan Conrad wrote:
> 
> >Hi,
> >
> >Here is a POSIX-compatible regular expression:
> >
> >^Re: [A-Z]{2,8}, [^ ]* [^ ]* [^ ]*$
> 
> Thanks for everyone's help, but it is still stumping me. This is what I  
> have in my postfix header_checks:
> 
> /^Subject: Re: [A-Z]{2,8}, [a-zA-Z]+ [a-zA-Z]+ [a-zA-Z]+$/     REJECT
> 
> Unfortunately, while is catches the SPAM, it also catches:
> 
> Re: Really, this should work
> 
> etc. Basically, it seems to be matching any word, 2-8 characters long,  
> versus just words made up of capital letters. Something like:
> 
> Re: s, this is small
> 
> does not match.
> 
> -T
> 
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-- 
Nathan J. Conrad                     Campus phone #5930
301 Scott hall, UNC Charlotte        http://bungled.net
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