Regular Expressions 101

Pro

^start of line

Negated Character Class[^:]*

*matches any number of characters outside the set below:

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\s*a Unicode whitespace character, repeated any number of times

Group 1([^?]+\?)

Negated Character Class[^?]+

+matches at least one character outside the set below:

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

\?the literal ? (63₁₀ / 77₈ / 3F₁₆)

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

Non-Capturing Group(?:$[^()]*$?\s)?

?repeats the group contents below at most once:

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

Negated Character Class[^()]*

*matches any number of characters outside the set below:

(the literal ( (40₁₀ / 50₈ / 28₁₆)

)the literal ) (41₁₀ / 51₈ / 29₁₆)

\)?optionally matches the literal ) (41₁₀ / 51₈ / 29₁₆)

\sa Unicode whitespace character

Group 2(.*)

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

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

No unit tests · Add a test to get started

25 tokens

^[^:]*:\s*([^?]+\?)\s+(?:\([^()]*\)?\s)?(.*)

There are no unit tests, click to add some.