Regular Expressions 101

Pro

Positive Lookbehind(?<=\[[^][]*)

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

Negated Character Class[^][]*

*matches any number of characters outside the set below:

]the literal ] (93₁₀ / 135₈ / 5D₁₆)

[the literal [ (91₁₀ / 133₈ / 5B₁₆)

\ba Unicode word boundary

\s+a Unicode whitespace character, repeated at least once

\ba Unicode word boundary

Positive Lookahead(?=[^][]*])

Negated Character Class[^][]*

*matches any number of characters outside the set below:

]the literal ] (93₁₀ / 135₈ / 5D₁₆)

[the literal [ (91₁₀ / 133₈ / 5B₁₆)

]the literal ] (93₁₀ / 135₈ / 5D₁₆)

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

(?<=\[[^][]*)\b\s+\b(?=[^][]*])

New

[a      b  c    ] d e f
[Skip a Payment] [decimal](18,2)

_

[a      b  c    ] d e f
[Skip a Payment] [decimal](18,2)