regex101: PCRE (Legacy) Match Workspace

Pro

^start of line

Group 1(.+?)

.+?any character (except for line terminators), repeated at least once

\ the literal (32₁₀ / 40₈ / 20₁₆)

bagthe literal text bag (case sensitive)

Character Class[s]?

?matches at most one character from the set below:

sthe literal s (115₁₀ / 163₈ / 73₁₆) (case sensitive)

\ the literal (32₁₀ / 40₈ / 20₁₆)

containthe literal text contain (case sensitive)

\ the literal (32₁₀ / 40₈ / 20₁₆)

Non-Capturing Group(?:(?:[1-9]\ (.+?)\ bag[s]?)(?:,\ [1-9]\ (.+?)\ bag[s]?)*|(?:no\ other\ bags))

1st Alternative(?:[1-9]\ (.+?)\ bag[s]?)(?:,\ [1-9]\ (.+?)\ bag[s]?)*

Non-Capturing Group(?:[1-9]\ (.+?)\ bag[s]?)

Character Class[1-9]

1-9one character from 1 (49₁₀) to 9 (57₁₀)

\ the literal (32₁₀ / 40₈ / 20₁₆)

Group 2(.+?)

.+?any character (except for line terminators), repeated at least once

\ the literal (32₁₀ / 40₈ / 20₁₆)

bagthe literal text bag (case sensitive)

Character Class[s]?

?matches at most one character from the set below:

sthe literal s (115₁₀ / 163₈ / 73₁₆) (case sensitive)

Non-Capturing Group(?:,\ [1-9]\ (.+?)\ bag[s]?)*

*repeats the group contents below any number of times:

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\ the literal (32₁₀ / 40₈ / 20₁₆)

Character Class[1-9]

1-9one character from 1 (49₁₀) to 9 (57₁₀)

\ the literal (32₁₀ / 40₈ / 20₁₆)

Group 3(.+?)

.+?any character (except for line terminators), repeated at least once

\ the literal (32₁₀ / 40₈ / 20₁₆)

bagthe literal text bag (case sensitive)

Character Class[s]?

?matches at most one character from the set below:

sthe literal s (115₁₀ / 163₈ / 73₁₆) (case sensitive)

2nd Alternative(?:no\ other\ bags)

Non-Capturing Group(?:no\ other\ bags)

nothe literal text no (case sensitive)

\ the literal (32₁₀ / 40₈ / 20₁₆)

otherthe literal text other (case sensitive)

\ the literal (32₁₀ / 40₈ / 20₁₆)

bagsthe literal text bags (case sensitive)

.any character (except for line terminators)

$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

25 tokens

Regular Expression

^(.+?)\ bag[s]?\ contain\ (?:(?:[1-9]\ (.+?)\ bag[s]?)(?:,\ [1-9]\ (.+?)\ bag[s]?)*|(?:no\ other\ bags)).$

Unit Tests

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