Regular Expressions 101

Pro

Group 1(genNode\()

genNodethe literal text genNode (case sensitive)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

Group 2(\d+(?:,\d+)*)

\d+a Unicode decimal digit, repeated at least once

Non-Capturing Group(?:,\d+)*

*repeats the group contents below any number of times:

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\d+a Unicode decimal digit, repeated at least once

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

Positive Lookahead(?=\))

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

25 tokens

(genNode\()\[(\d+(?:,\d+)*)\](?=\))

New

assert Solution().oddEvenList(genNode([2,1,3,5,6,4,7])) == genNode([2,3,6,7,1,5,4]), 'Example 2'

assert Solution().oddEvenList(genNode([2,1,3,5,6,4,7])) == genNode([2,3,6,7,1,5,4]), 'Example 2'