Regular Expressions 101

Explanation

Pro

\d+a Unicode decimal digit, repeated at least once

Non-Capturing Group(?:[.]?\d+(?:$[a-z]+$)*)?

?repeats the group contents below at most once:

Character Class[.]?

?matches at most one character from the set below:

.the literal . (46₁₀ / 56₈ / 2E₁₆)

\d+a Unicode decimal digit, repeated at least once

Non-Capturing Group(?:$[a-z]+$)*

*repeats the group contents below any number of times:

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

Character Class[a-z]+

+matches at least one character from the set below:

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

\)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

Detailed match information will be displayed here automatically.

25 tokens

\d+(?:[.]?\d+(?:\([a-z]+\))*)?

New

Sub-Clause 9.12
Clause 13
SubClauses 9.8, 9.9 and 9.10
Sub-Clauses 17.1(b)(ii) and 17.3(b)(ii))
Sub-Clause 20.1(d)

Sub-Clause 9.12
Clause 13
SubClauses 9.8, 9.9 and 9.10
Sub-Clauses 17.1(b)(ii) and 17.3(b)(ii))
Sub-Clause 20.1(d)