regex101: PCRE2 (PHP) Substitution Workspace

Explanation

Pro

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

Non-Capturing Group(?:(?<topro>[^)]*?\bpro\b)(?:(?<u1> +[^)])(?<l1>[^ )]*))?(?:(?<u2> +[^)])(?<l2>[^ )]*))?(?:(?<u3> +[^)])(?<l3>[^ )]*))?(?:(?<u4> +[^)])(?<l4>[^ )]*))? *|(?<withoutpro>.*?))

1st Alternative(?<topro>[^)]*?\bpro\b)(?:(?<u1> +[^)])(?<l1>[^ )]*))?(?:(?<u2> +[^)])(?<l2>[^ )]*))?(?:(?<u3> +[^)])(?<l3>[^ )]*))?(?:(?<u4> +[^)])(?<l4>[^ )]*))? *

Group topro(?<topro>[^)]*?\bpro\b)

Negated Character Class[^)]*?

*?matches any number of characters outside the set below:

)the literal ) (41₁₀ / 51₈ / 29₁₆)

\ban ASCII word boundary

prothe literal text pro (case sensitive)

\ban ASCII word boundary

Non-Capturing Group(?:(?<u1> +[^)])(?<l1>[^ )]*))?

?repeats the group contents below at most once:

Group u1(?<u1> +[^)])

+the literal (32₁₀ / 40₈ / 20₁₆) , repeated at least once

Negated Character Class[^)]

)the literal ) (41₁₀ / 51₈ / 29₁₆)

Group l1(?<l1>[^ )]*)

Negated Character Class[^ )]*

*matches any number of characters outside the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

)the literal ) (41₁₀ / 51₈ / 29₁₆)

Non-Capturing Group(?:(?<u2> +[^)])(?<l2>[^ )]*))?

?repeats the group contents below at most once:

Group u2(?<u2> +[^)])

+the literal (32₁₀ / 40₈ / 20₁₆) , repeated at least once

Negated Character Class[^)]

)the literal ) (41₁₀ / 51₈ / 29₁₆)

Group l2(?<l2>[^ )]*)

Negated Character Class[^ )]*

*matches any number of characters outside the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

)the literal ) (41₁₀ / 51₈ / 29₁₆)

Non-Capturing Group(?:(?<u3> +[^)])(?<l3>[^ )]*))?

?repeats the group contents below at most once:

Group u3(?<u3> +[^)])

+the literal (32₁₀ / 40₈ / 20₁₆) , repeated at least once

Negated Character Class[^)]

)the literal ) (41₁₀ / 51₈ / 29₁₆)

Group l3(?<l3>[^ )]*)

Negated Character Class[^ )]*

*matches any number of characters outside the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

)the literal ) (41₁₀ / 51₈ / 29₁₆)

Non-Capturing Group(?:(?<u4> +[^)])(?<l4>[^ )]*))?

?repeats the group contents below at most once:

Group u4(?<u4> +[^)])

+the literal (32₁₀ / 40₈ / 20₁₆) , repeated at least once

Negated Character Class[^)]

)the literal ) (41₁₀ / 51₈ / 29₁₆)

Group l4(?<l4>[^ )]*)

Negated Character Class[^ )]*

*matches any number of characters outside the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

)the literal ) (41₁₀ / 51₈ / 29₁₆)

*the literal (32₁₀ / 40₈ / 20₁₆) , repeated any number of times

2nd Alternative(?<withoutpro>.*?)

Group withoutpro(?<withoutpro>.*?)

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

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

Quick Reference

25 tokens

Regular Expression

\((?:(?<topro>[^)]*?\bpro\b)(?:(?<u1> +[^)])(?<l1>[^ )]*))?(?:(?<u2> +[^)])(?<l2>[^ )]*))?(?:(?<u3> +[^)])(?<l3>[^ )]*))?(?:(?<u4> +[^)])(?<l4>[^ )]*))? *|(?<withoutpro>.*?))\)

Regular Expressions 101

Regular Expression

Unit Tests