Regular Expressions 101

Explanation

Pro

Group 1((?!\[code\]) \[b\](.*)\[\/b\] (?!=\[\/code\]))

Negative Lookahead(?!\[code\])

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

codethe literal text code (case insensitive)

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

the literal (32₁₀ / 40₈ / 20₁₆)

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

bthe literal b (98₁₀ / 142₈ / 62₁₆) (case insensitive)

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

Group 2(.*)

.*any character (except for line terminators), repeated any number of times

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

bthe literal b (98₁₀ / 142₈ / 62₁₆) (case insensitive)

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

the literal (32₁₀ / 40₈ / 20₁₆)

Negative Lookahead(?!=\[\/code\])

=the literal = (61₁₀ / 75₈ / 3D₁₆)

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

codethe literal text code (case insensitive)

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

Global pattern flags

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

i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters

Detailed match information will be displayed here automatically.

26 tokens

((?!\[code\]) \[b\](.*)\[\/b\] (?!=\[\/code\]))

 [code] [b]DOES NOT MATCH TEXT HERE[/b] [/code]

 [b]Should Match Text Here[/b]