[Dovecot] sieve filters

[Stephan Bosch]

Hi Ian,

Ian P. Christian wrote:
> 2009/2/19 Ian P. Christian <pookey at pookey.co.uk>:
>> The first if appears to match, as if I move the fileinto up there it
>> works - however it doesn't work as it shown here.  Can anyone suggest
>> why?  Can I achieve what I'm trying to do with sieve?  How can I go
>> about debugging scripts?
You can use the sieve-test command line tool for that. It sure beats 
sending test mails through deliver all the time. The debugging 
experience needs improvement though, as trace debug output is a bit 
cryptic (relates to binary dump) and being able to print debug messages 
and variables to the console would be a nice thing to have.

> I've made some progress, but now I'm wondering if it's actually possible....
> 
> 
> # X-pstn-levels: (S: 0.00799/98.42547 CV:99.9000 FC:95.5390 LC:95.5390
> R:95.9108 P:95.9108 M:97.0282 C:98.6951 )
> # X-pstn-settings: 3 (1.0000:1.0000) s cv gt3 gt2 gt1 r p m c
> 
> if header :matches "X-pstn-levels" "(S: */*"
> {
>   set "score" "${1}";
>   if header :matches "X-pstn-settings" "? (*:*) *"
>   {
>     set "threshold" "${3}";
> 
>     if "${score}" :under "${threshold}"
>     {
>     }
> 
>   }
> }
> 
> There doesn't appear to be a way of comparing the value of 2 floating
> point numeric variables (or integers for that matter).
Floating point, hmm ... unfortunately no.

If the values were integers you could have done the following:

--
require "relational";
require "variables";
require "comparator-i;ascii-numeric";
require "fileinto";

if header :matches "X-pstn-levels" "(S: */*"
{
     set "score" "${1}";

     if header :matches "X-pstn-settings" "? (*:*) *" {
         set "threshold" "${3}";

         if not string :value "lt" "${score}" "${threshold}" {
             /* Do whatever */
             fileinto "Not spam";
         }
     }
}
--

You could do some nasty string matching to explicitly match the decimal 
separator and match the integer and fractional part separately.

Now I am wondering. What software produces such headers? :)

Regards,

Stephan.