Regular Expressions 101

Positive Lookbehind(?<=@)

@the literal @ (64₁₀ / 100₈ / 40₁₆)

\w+any word character, repeated at least once

\ban ASCII word boundary

Negative Lookahead(?!\.)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Global pattern flags

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

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

(?<=@)\w+\b(?!\.)

New

This is a test\nAnother @pradyut@test ht@html.com\ntest\n#art\n@cool#paintings#collections