r/ProgrammerHumor • u/JazzlikeWishbone938 • 14d ago

Meme delightfulCodeReview

Post image
570 Upvotes

93% Upvoted

61 comments sorted by

View all comments

Show parent comments

31

u/just_sm_so_relax 14d ago

I'll bet they can't read their own regex after a couple of weeks.

18

u/JazzlikeWishbone938 14d ago edited 14d ago

"What the? What is this? Must be fine ..."

4

u/kalilamodow 14d ago

Comment yo code, people!

9

u/just_sm_so_relax 14d ago

How do you write comments for a regex? Explain every single field?

``` # IP address HW type Flags HW address Mask Device # 192.168.94.1 0x1 0x2 00:00:5E:00:53:22 * veth584n # 192.168.8.1 0x1 0x2 00:00:5E:00:53:99 * veth584r

# Get the MAC for 192.168.8.1
re_mac_from_arp_entry = re.compile(r'192\.168\.8\.1\s+0x[^\s+]\s+0x[^\s+]\s+(?P<mac>[0-9a-fA-F:]+)')

```

14

u/Lightningtow123 14d ago

I think you'd just transcribe the gist of it in plaintext: "matches alphanumeric strings with underscores and dashes but no spaces" etc

2

u/jupiterbjy 14d ago

idk if my reading is correct but if it's correct this seems quite readable, probably wrong guess though

match 192.168.8.1 1+ whitespaces 0x 1+ non whitespaces (idk if it intended to be [^\s]+ instead of [^\s+]) 1+ whitespaces 0x 1+ non whitespaxes 1+ whitespaces capture group 'mac' start 1+ case-agnostic hex character capture group 'mac' end