Regular Expressions 101

Pro

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

,the literal , (44₁₀ / 54₈ / 2C₁₆)

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

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

*repeats the group contents below any number of times:

Negated Character Class[^']*

*matches any number of characters outside the set below:

'the literal ' (39₁₀ / 47₈ / 27₁₆)

Negated Character Class[^']*

*matches any number of characters outside the set below:

'the literal ' (39₁₀ / 47₈ / 27₁₆)

Negated Character Class[^']*

*matches any number of characters outside the set below:

'the literal ' (39₁₀ / 47₈ / 27₁₆)

$end of line

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

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

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26 tokens

\s*,(?=(?:[^']*'[^']*')*[^']*$)\s*

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