Regular Expressions 101

Pro

Positive Lookahead(?=(?!^)[^\[\]]*?\[|[^\[\]]+$)

1st Alternative(?!^)[^\[\]]*?\[

Negative Lookahead(?!^)

^start of line

Negated Character Class[^\[\]]*?

*?matches any number of characters outside the set below:

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

2nd Alternative[^\[\]]+$

Negated Character Class[^\[\]]+

+matches at least one character outside the set below:

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

$end of line

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

Regular Expression

(?=(?!^)[^\[\]]*?\[|[^\[\]]+$)

New

ABCDE[NOT]FGH
CCGF[NOT]HI
MPJ[NOT]L
MNA[NOT]PLJ[KAJ]SHD
MPJ[NOT]
[NOT]L
MNA[NOT]PLJ[KAJ]SHDMNA[NOT]PLJ[KAJ]SHDMNA[NOT]PLJ[KAJ]
MNA[NOT]PLJ[KAJ]SHDMNA[NOT]PLJ[KAJ]SHDMNA[NOT][KAJ]

Extraction

ABCDE[NOT]FGH
CCGF[NOT]HI
MPJ[NOT]L
MNA[NOT]PLJ[KAJ]SHD
MPJ[NOT]
[NOT]L
MNA[NOT]PLJ[KAJ]SHDMNA[NOT]PLJ[KAJ]SHDMNA[NOT]PLJ[KAJ]
MNA[NOT]PLJ[KAJ]SHDMNA[NOT]PLJ[KAJ]SHDMNA[NOT][KAJ]