Re: [EXIM] filter problem

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Szerző: Steven A. Reisman
Dátum:  
Címzett: Ben Smithurst
CC: exim-users
Tárgy: Re: [EXIM] filter problem
> On Sat, 13 Jun 1998, Steve Lamb wrote:

> >     Why not just \$?  Since exim uses pcre that is the perl way of denoting a
> > literan $.


> According to the spec, section 9...
>
>    An uninterpreted dollar can be included in the string by putting a
>    backslash in front of it -- if the string appears in quotes, two
>    backslashes are required because the quotes themselves cause
>    interpretation of backslashes when the string is read in.



Well, severe frustration set in, and I tried increasing numbers of
backslashes until it worked. The magic number is 6:

   if $h_subject matches "\\\\\\$\\\\\\$\\\\\\$"
   then
      log "match"
   endif


=======================================================

Testing Exim filter file xf
Filter: start of processing
Match expanded arguments:
Subject = (fwd) Problem sending this message out
Pattern = \$\$\$
Condition is false: $h_subject matches \\\$\\\$\\\$
At the end of filtering "delivered" is false
Filter: end of processing

=======================================================

Testing Exim filter file xf
Filter: start of processing
Match expanded arguments:
Subject = (fwd) $$$ Problem sending this message out
Pattern = \$\$\$
Condition is true: $h_subject matches \\\$\\\$\\\$
Logwrite "match\n"
At the end of filtering "delivered" is false
Filter: end of processing

=======================================================


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