Regular Expressions 101

Explanation

Pro

(?i)applies the following effective flags to the remainder of the pattern: gi

i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters

Non-Capturing Group(?:\G(?!\A)|Catch(?:This|That|Anything)\s*\()

1st Alternative\G(?!\A)

\Gstart of current search

Negative Lookahead(?!\A)

\Astart of string

2nd AlternativeCatch(?:This|That|Anything)\s*\(

Catchthe literal text Catch (case insensitive)

Non-Capturing Group(?:This|That|Anything)

1st AlternativeThis

Thisthe literal text This (case insensitive)

2nd AlternativeThat

Thatthe literal text That (case insensitive)

3rd AlternativeAnything

Anythingthe literal text Anything (case insensitive)

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

\(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)

"the literal " (34₁₀ / 42₈ / 22₁₆)

\Kresets the starting point of the reported match. Any previously consumed characters are no longer included in the final match

"the literal " (34₁₀ / 42₈ / 22₁₆)

Global pattern flags

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

Match Information

Detailed match information will be displayed here automatically.

Quick Reference

25 tokens

Regular Expression

(?i)(?:\G(?!\A)|Catch(?:This|That|Anything)\s*\()[^()"]*\K"

New

Any text and "much" "more" of it. Don't replace quotes here
CatchThis( no quotes here, "any more text" , "and so on and so forth...")
catchthat("some other text" , "or less")
some text in "between"
CatchAnything ( "even more" , "and more", no quotes there, "wall of text")
more ("text"""") and quotes after...

Extraction

Any text and "much" "more" of it. Don't replace quotes here
CatchThis( no quotes here, "any more text" , "and so on and so forth...")
catchthat("some other text" , "or less")
some text in "between"
CatchAnything ( "even more" , "and more", no quotes there, "wall of text")
more ("text"""") and quotes after...