Regular Expressions 101

1st Alternative(\((?:[^()]++|(?1))*\))(*SKIP)(*F)

Group 1(\((?:[^()]++|(?1))*\))

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

Non-Capturing Group(?:[^()]++|(?1))*

*repeats the group contents below any number of times:

1st Alternative[^()]++

Negated Character Class[^()]++

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

(the literal ( (40₁₀ / 50₈ / 28₁₆)

)the literal ) (41₁₀ / 51₈ / 29₁₆)

2nd Alternative(?1)

(?1)calls group 1 as a subroutine

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

(*SKIP)acts like (*PRUNE), but the next unanchored match attempt starts where (*SKIP) was reached instead of at the next subject character

(*F)forces the current match attempt to fail at this position

2nd Alternative(?<=[^\s,])(?=[\s,])

Positive Lookbehind(?<=[^\s,])

Negated Character Class[^\s,]

\sany whitespace character

,the literal , (44₁₀ / 54₈ / 2C₁₆)

Positive Lookahead(?=[\s,])

Character Class[\s,]

\sany whitespace character

,the literal , (44₁₀ / 54₈ / 2C₁₆)

Global pattern flags

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

Detailed match information will be displayed here automatically.

25 tokens

Regular Expression

(\((?:[^()]++|(?1))*\))(*SKIP)(*F)|(?<=[^\s,])(?=[\s,])

New

(((K05708+K05709+K05710+K00529) K05711),K05712),K05713 K05714 K02554

(((K05708+K05709+K05710+K00529) K05711),K05712),K05713 K05714 K02554