CODEWITHSUNDEEP
regex
John Smith
John Smith

Reputation: 1005

Regex prefer higher length in second group

Lets say I have the following 2 strings:

'506' '1008'

I want to extract the 5 and the 06 from the string and 10 and 08 from the second. I came up with the following regex:

(\d{1,2})(\d{1,2})

This matches 50 and 6 and 10 and 08. This is not completely what I want. I need to match 5 and 06 instead of 50 and 6. How do I indicate I want the second group to receive the higher length?

Upvotes: 1

Views: 145

Answers (1)

Wiktor Stribiżew
Wiktor Stribiżew

Reputation: 626845

You may wrap the pattern with word boundaries and capture exactly 2 digits into Group 2:

\b(\d{1,2})(\d{2})\b

See the regex demo

  • \b - intial word boundary
  • (\d{1,2}) - Group 1 capturing one or two digits
  • (\d{2}) - Group 2 matching exactly 2 digits
  • \b - trailing word boundary.

Upvotes: 1

Related Questions