Regular Expressions 101

Explanation

Pro

(?m)applies the following effective flags to the remainder of the pattern: gm

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

^start of line

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\S+any non-whitespace character, repeated at least once

:the literal : (58₁₀ / 72₈ / 3A₁₆)

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

Match Information

Detailed match information will be displayed here automatically.

Quick Reference

25 tokens

Regular Expression

(?m)^:\S+:

:name-of-an-attribute:
:name-of-an-attribute: value of the attribute
:url-org: https://example.org/projects
:url-project: {url-org}/project-name

https://docs.asciidoctor.org/asciidoc/latest/attributes/attribute-entries/