Parsing Data using Regex. Split it into columns via groups

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I want to use REGEX to parse my data into 3 columns

Film data:
Marvel Comics Presents (1988) #125
Spider-Man Legends Vol. II: Todd Mcfarlane Book I (Trade Paperback)
Spider-Man Legends Vol. II: Todd Mcfarlane Book I
Spider-Man Legends Vol. II: Todd Mcfarlane Book I (1998)
Marvel Comics Presents #125

Expected output:
enter image description here

I can see how to group it, but can’t seem to REGEX it:
enter image description here

I built this expression: (.*)\((\d{4})\)(.*)

I want to essentially use the ? quantifier to say the following:
(.*)\((\d{4})\)**?**(.*)
sort of like saying this group may or may not be there?

Nevertheless, it’s not working.

>Solution :

You could use 2 capture groups, where the last 2 are optional:

^(.*?)(?:\((\d{4})\))?\s*(#\d+)?$

The pattern matches:

  • ^ Start of string
  • (.*?) Capture group 1
  • (?:\((\d{4})\))? Optional non capture group capturing 4 digits in group 2
  • \s* match optional whitespace chars
  • (#\d+)? Optional group 3, match # and 1+ digits
  • $ End of string

See a regex101 demo.

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