Regular Expressions 101

Pro

,the literal , (44₁₀ / 54₈ / 2C₁₆)

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

Positive Lookahead(?=(?:(?:[^"]*"){2})*[^"]*$)

Non-Capturing Group(?:(?:[^"]*"){2})*

*repeats the group contents below any number of times:

Non-Capturing Group(?:[^"]*"){2}

{2}repeats the group contents below exactly 2 times:

Negated Character Class[^"]*

*matches any number of characters outside the set below:

"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.

26 tokens

,\s*(?=(?:(?:[^"]*"){2})*[^"]*$)

New

a,b,c,d,e
a,b,"c,d", e
a,,"c,d", e
 xz a,, b, c, "d, e, f", g, h

a,b,c,d,e
a,b,"c,d", e
a,,"c,d", e
 xz a,, b, c, "d, e, f", g, h