Regular Expressions 101

Group 1((\w+ \w+) bags contain)?

?repeats the group contents below at most once:

Group 2(\w+ \w+)

\w+any word character, repeated at least once

the literal (32₁₀ / 40₈ / 20₁₆)

\w+any word character, repeated at least once

bags containthe literal text bags contain (case sensitive)

Group 3(,? (\d+) (\w+ \w+) bags?)+?

+?repeats the group contents below at least once:

,?optionally matches the literal , (44₁₀ / 54₈ / 2C₁₆)

the literal (32₁₀ / 40₈ / 20₁₆)

Group 4(\d+)

\d+a digit, repeated at least once

the literal (32₁₀ / 40₈ / 20₁₆)

Group 5(\w+ \w+)

\w+any word character, repeated at least once

the literal (32₁₀ / 40₈ / 20₁₆)

\w+any word character, repeated at least once

bagthe literal text bag (case sensitive)

s?optionally matches the literal s (115₁₀ / 163₈ / 73₁₆) (case sensitive)

Global pattern flags

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

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Search reference

Regular Expression

((\w+ \w+) bags contain)?(,? (\d+) (\w+ \w+) bags?)+?

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