Feature Request: Correct me when I type `figlet moo | cowsay`

[mensly]

I would love for fuck to fix when I forget the -n piping figlet into cowsay:

⋊> ~ figlet moo | cowsay -n                                             15:38:05
 _________________________
/                         \
|  _ __ ___   ___   ___   |
| | '_ ` _ \ / _ \ / _ \  |
| | | | | | | (_) | (_) | |
| |_| |_| |_|\___/ \___/  |
\                         /
 -------------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||
⋊> ~ figlet moo | cowsay                                                15:38:09
 _________________________________________
/                                         \
|                                         |
| _ __ ___ ___ ___ | '_ ` _ \ / _ \ / _ \ |
| | | | | | | (_) | (_) | |_| |_|         |
\ |_|\___/ \___/                          /
 -----------------------------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||
⋊> ~ fuck                                                               15:38:10
No fucks given

I'll write a custom rule for this after work today for my own system, I'm more just checking if anyone else wants a copy when I'm done.

[w4d3j]

I'm in. And thank you in advance.

[mensly]

~> cat ~/.config/thefuck/rules/cowsay-figlet.py

def match(command):
    piped_commands = command.script.split('|')
    index_figlet = next((i for i,x in enumerate(piped_commands)
    	if x.strip().startswith('figlet')), None)
    index_cowsay = next((i for i,x in enumerate(piped_commands)
    	if x.strip().startswith('cowsay')), None)
    return (index_cowsay != None and index_figlet != None and index_cowsay > index_figlet and
    	any(x.strip().startswith('cowsay') and '-n' not in x for x in piped_commands))


def get_new_command(command):
    piped_commands = command.script.split('|')
    for i,x in enumerate(piped_commands):
        if x.strip().startswith('cowsay') and '-n' not in x:
            piped_commands[i] = x + ' -n'
    return '|'.join(piped_commands)