Regular Expressions 101

,the literal , (44₁₀ / 54₈ / 2C₁₆)

Positive Lookahead(?=(?:[^'"]|'[^']*'|"[^"]*")*$)

Non-Capturing Group(?:[^'"]|'[^']*'|"[^"]*")*

*repeats the group contents below any number of times:

1st Alternative[^'"]

Negated Character Class[^'"]

'the literal ' (39₁₀ / 47₈ / 27₁₆)

"the literal " (34₁₀ / 42₈ / 22₁₆)

2nd Alternative'[^']*'

'the literal ' (39₁₀ / 47₈ / 27₁₆)

Negated Character Class[^']*

*matches any number of characters outside the set below:

'the literal ' (39₁₀ / 47₈ / 27₁₆)

3rd Alternative"[^"]*"

"the literal " (34₁₀ / 42₈ / 22₁₆)

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

,(?=(?:[^'"]|'[^']*'|"[^"]*")*$)

New

peter@pan.com, 
lucky <jack@pot.com>, 
"William Tell" <billy@tell.com>, 
"John Rambo, III" <johnny@rambo.com>, 
"there, might, be, several, commas inside the quotes" <multiple@commas.com>, 
"yes, this is also a valid email address, can you believe" <yes@this@is@valid.com>'

Regular Expression

Extraction