Regular Expressions 101

Pro

Non-Capturing Group(?:[\s\\_]|(?<!\d)/(?!\d))+

+repeats the group contents below at least once:

1st Alternative[\s\\_]

Character Class[\s\\_]

\sa Unicode whitespace character

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

2nd Alternative(?<!\d)/(?!\d)

Negative Lookbehind(?<!\d)

\da Unicode decimal digit

/the literal / (47₁₀ / 57₈ / 2F₁₆)

Negative Lookahead(?!\d)

\da Unicode decimal digit

Global pattern flags

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

u modifier: unicode. Treats the pattern and subject as UTF-16

Detailed match information will be displayed here automatically.

25 tokens

(?:[\s\\_]|(?<!\d)/(?!\d))+

New

925/123 Black/Jack

\n

925/123 Black/Jack