Regular Expressions 101

Negative Lookbehind(?<![\w-])

Character Class[\w-]

\wany word character

-the literal - (45₁₀ / 55₈ / 2D₁₆)

buttonthe literal text button (case sensitive)

Negative Lookahead(?![\w-])

Character Class[\w-]

\wany word character

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Global pattern flags

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

Detailed match information will be displayed here automatically.

25 tokens

Regular Expression

(?<![\w-])button(?![\w-])

New

#button .button large-button tinybutton size9button #9button button-large buttontiny

text

#button .button large-button tinybutton size9button #9button button-large buttontiny