Regular Expressions 101

Pro

1st Alternative(?:[^@\w\s]+|@(?!\w))+

Non-Capturing Group(?:[^@\w\s]+|@(?!\w))+

+repeats the group contents below at least once:

1st Alternative[^@\w\s]+

Negated Character Class[^@\w\s]+

+matches at least one character outside the set below:

@the literal @ (64₁₀ / 100₈ / 40₁₆)

\wany word character

\sany whitespace character

2nd Alternative@(?!\w)

@the literal @ (64₁₀ / 100₈ / 40₁₆)

Negative Lookahead(?!\w)

\wany word character

2nd Alternative\s+

\s+any whitespace character, repeated at least once

3rd Alternative@?\w+

@?optionally matches the literal @ (64₁₀ / 100₈ / 40₁₆)

\w+any word character, repeated at least once

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

(?:[^@\w\s]+|@(?!\w))+|\s+|@?\w+

this is a test of proper nouns @Ryan
this @Ryan #$@test@123@4343@@$%$test@1#$#$@@@1@@@@

this is a test of proper nouns @Ryan
this @Ryan #$@test@123@4343@@$%$test@1#$#$@@@1@@@@