Regular Expressions 101

-rthe literal text -r (case sensitive)

Non-Capturing Group(?:eason)?

?repeats the group contents below at most once:

easonthe literal text eason (case sensitive)

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

"the literal " (34₁₀ / 42₈ / 22₁₆)

Group 1(.+?)

.+?any character (except for line terminators), repeated at least once

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

1st Alternative"\s*-

"the literal " (34₁₀ / 42₈ / 22₁₆)

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

-the literal - (45₁₀ / 55₈ / 2D₁₆)

2nd Alternative[^"]*$

Negated Character Class[^"]*

*matches any number of characters outside the set below:

"the literal " (34₁₀ / 42₈ / 22₁₆)

$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.

Search reference

Regular Expression

-r(?:eason)?\s*"(.+?)(?:"\s*-|[^"]*$)

New

1 anything -reason "some reason" -anyArg "anything"
2 anything -reason "Hello World, you're the "best"" -anyArg "anything"
3 anything -r "anything "here" is wrong" anything

Regular Expression

Extraction