Does it possible to set condition "if" in rules?

[reter94092]

For example

input: word

if input.lenght<7
input+input

output: wordword

[Snoopy]

just use the rule d

the extra logic to check if your password is shorter than 7 will just slow down the cracking process (more than just testing this extra password even if its longer than 7)

EDIT:
or another idea, for 3 basic rules 
: (do nothing)
d (duplicate)
'6 d (first truncate at position 6 or use 7 if you want <=7, and then duplicate this word)