Regular Expressions 101

Positive Lookbehind(?<=(["']\b))

Group 1(["']\b)

Character Class["']

"the literal " (34₁₀ / 42₈ / 22₁₆)

'the literal ' (39₁₀ / 47₈ / 27₁₆)

\ban ASCII word boundary

Non-Capturing Group(?:(?=(\\?))\2.)*?

*?repeats the group contents below any number of times:

Positive Lookahead(?=(\\?))

Group 2(\\?)

\\?optionally matches the literal \ (92₁₀ / 134₈ / 5C₁₆)

\2the text saved by group 2

.any character (except for line terminators)

Positive Lookahead(?=\1)

\1the text saved by group 1

Global pattern flags

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

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

(?<=(["']\b))(?:(?=(\\?))\2.)*?(?=\1)

Test String
New

Hello Colm "This is a test"
"This is also an NL test"
'And this has  an escaped quote don\'t  in it ' Blue Boy
"This has a single quote ' but doesn\' end the quote as it started with double quotes"

"Foo Bar" "Another Value" something else

Regular Expression

Test StringNew

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Test String
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