Value assign in if condition part

Hi, I like to know if I can assign value to a variable in the if-statement condition part, below example will help you to understand the scenario. I modified the Exim filter file and defined some keywords (more than 500) that if those keywords are found in the email subject then the email will be rejected. Now I want to store the value of that word that matches the condition write it on the bounceback message or in the error log file. I want to do something like that, if ("$h_subject:" contains "aaa" and variable="aaa") or ("$h_subject:" contains "aab" and variable="aab") or ("$h_subject:" contains "aac" and variable="aac") . . . or ("$h_subject:" contains "zzz" and variable="zzz") then fail text "Word found Mail reject, the word found $variable" endif The $variable value contains which I have assigned above in if condition after and operator. Let me know if this is possible or any other alternative way to achieve it. regards, Sajawal