873766 - Compound expression in message filters

Status: RESOLVED DUPLICATE of bug 297852

(Thunderbird :: Filters, enhancement, P2)

Description

[Carl Ponder]

User Agent: Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:21.0) Gecko/20100101 Firefox/21.0 (Beta/Release)
Build ID: 20130512194440

Steps to reproduce:

(This is an enhancement request, not a bug)
I'd like to be able to specify a message filter using a compound expression, like
if (( sender == "travelocity" ) || ( sender == "orbitz" )) and ( subject != "reservation" ) the move message into "travel" folder.
In this case I want to move what i consider the less urgent messages into the subject folders but keep the urgent ones in my incoming mail box.
I know that i can expand these into individual AND rules, but for junk mail rules in particular, the number of filters would explode.
Also, from the cases I'd be interested in, it would be enough to have a single AND condition for the filter, that would be combined with each of the OR conditions.

Comment 1

[Carl Ponder]

Would it be possible for me to do this by editing the msgFilterRules.dat file directly?
I see these expressions

condition="AND (subject,begins with,BUILD) AND (from,is,Buildmeister)"

Would Thunderbird choke if I wrote something like

condition="AND ( OR (from,is,Orbitz) OR (from,is,Travelocity)) ) AND (subject.contains.reservation)"

As far as teh implementation goes, maybe you could write the logic to add the filter rules first, and figure out how to specify the input GUI later.