Regular Expressions 101

Explanation

Pro

^start of line

Group plugin(?P<plugin>[^\[\]]*)

Negated Character Class[^\[\]]*

*matches any number of characters outside the set below:

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

Group 2(\[(?P<version>[0-9.]*)\])?

?repeats the group contents below at most once:

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

Group version(?P<version>[0-9.]*)

Character Class[0-9.]*

*matches any number of characters from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

.the literal . (46₁₀ / 56₈ / 2E₁₆)

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

$end of line

Global pattern flags

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

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

Detailed match information will be displayed here automatically.

25 tokens

^(?P<plugin>[^\[\]]*)(\[(?P<version>[0-9.]*)\])?$

New

contactform[1.1]
limit_login_attempts[0.5]
maintenance_mode[1.0]
blog