Regular Expressions 101

Positive Lookbehind(?<=[^\s/])

Negated Character Class[^\s/]

\sany whitespace character

/the literal / (47₁₀ / 57₈ / 2F₁₆)

Positive Lookahead(?=[^\s/])

Negated Character Class[^\s/]

\sany whitespace character

/the literal / (47₁₀ / 57₈ / 2F₁₆)

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.

27 tokens

Regular Expression

(?<=[^\s/])(?=[^\s/])

New

(1+2) / 2
1/2+4/5

(1+2) / 2
1/2+4/5