Python for (Nuke) Compers 0x12 - Regexes

Other resources

Regexes are pretty well known, if what i’m handwaving at is of interest, here’s some other places to read:

• Wikipedia - https://en.wikipedia.org/wiki/Regular_expression
• Regex101 - super handy tester - https://regex101.com/
• Python 3’s docs - https://docs.python.org/3/howto/regex.html
• Zetcode! Zetcode’s awesome - https://zetcode.com/python/regularexpressions/

My demo rig

here’s the nukescript (7kb)

that cheat sheet i was writing up

positional anchor
   ^        start of text
   $        end of text

wildcard
   .        literally whatever

how many? (aka: quantifiers)
   +        1 or more (of the thing before it)
   *        0 or more (of the thing before it)
   ?        0 or 1    (of the thing before it)

groups
  (aaa|bbb|ccc)   aaa OR bbb OR ccc

classes
  [abc]     anything in the class 'abc' (so basically, a or b or c)
  [^abc]    anything OTHER than class 'abc' (so basically, a or b or c)

shortcuts
  [a-z]     all lowercase
  [A-Z]     all uppercase
  [0-9]     all numbers