regex101: JavaScript Match Workspace

1st Alternative(?<=")[^"]+?(?="(?:\s*?,|\s*?$))

Positive Lookbehind(?<=")

"the literal " (34₁₀ / 42₈ / 22₁₆)

Negated Character Class[^"]+?

+?matches at least one character outside the set below:

"the literal " (34₁₀ / 42₈ / 22₁₆)

Positive Lookahead(?="(?:\s*?,|\s*?$))

"the literal " (34₁₀ / 42₈ / 22₁₆)

Non-Capturing Group(?:\s*?,|\s*?$)

1st Alternative\s*?,

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

,the literal , (44₁₀ / 54₈ / 2C₁₆)

2nd Alternative\s*?$

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

$end of line

2nd Alternative(?<=(?:^|,)\s*?)(?:[^,"\s][^,"]*[^,"\s])

Positive Lookbehind(?<=(?:^|,)\s*?)

Non-Capturing Group(?:^|,)

1st Alternative^

^start of line

2nd Alternative,

,the literal , (44₁₀ / 54₈ / 2C₁₆)

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

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

Negated Character Class[^,"\s]

,the literal , (44₁₀ / 54₈ / 2C₁₆)

"the literal " (34₁₀ / 42₈ / 22₁₆)

\sany whitespace character

Negated Character Class[^,"]*

*matches any number of characters outside the set below:

,the literal , (44₁₀ / 54₈ / 2C₁₆)

"the literal " (34₁₀ / 42₈ / 22₁₆)

Negated Character Class[^,"\s]

,the literal , (44₁₀ / 54₈ / 2C₁₆)

"the literal " (34₁₀ / 42₈ / 22₁₆)

\sany whitespace character

3rd Alternative(?:[^,"\s])(?![^"]*?"(?:\s*?,|\s*?$))(?=\s*?(?:,|$))

Non-Capturing Group(?:[^,"\s])

Negated Character Class[^,"\s]

,the literal , (44₁₀ / 54₈ / 2C₁₆)

"the literal " (34₁₀ / 42₈ / 22₁₆)

\sany whitespace character

Negative Lookahead(?![^"]*?"(?:\s*?,|\s*?$))

Negated Character Class[^"]*?

*?matches any number of characters outside the set below:

"the literal " (34₁₀ / 42₈ / 22₁₆)

Non-Capturing Group(?:\s*?,|\s*?$)

1st Alternative\s*?,

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

,the literal , (44₁₀ / 54₈ / 2C₁₆)

2nd Alternative\s*?$

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

$end of line

Positive Lookahead(?=\s*?(?:,|$))

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

Non-Capturing Group(?:,|$)

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

Search reference

Regular Expression

(?<=")[^"]+?(?="(?:\s*?,|\s*?$))|(?<=(?:^|,)\s*?)(?:[^,"\s][^,"]*[^,"\s])|(?:[^,"\s])(?![^"]*?"(?:\s*?,|\s*?$))(?=\s*?(?:,|$))

New

it, finds, values, in, comma, separated, lists
(it also matches new lines and any whitespace,  hence the end-of-line highlight)	
it, "handles double quotes"
it, "handles, double, quotes, with, commas, in, them"
     it,      ignores,        trailing   whitespaces	     
"    unless it's in quotes      	"
,,,,,and,,,,,handles-??-weird.stuff,,,,,,?????

Regular Expressions 101

Regular Expression

Extraction