Regular Expressions 101

Explanation
Pro

\ban ASCII word boundary

Character Class[a-z]?

?matches at most one character from the set below:

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

Character Class[A-Z]+

+matches at least one character from the set below:

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

\w*any word character, repeated any number of times

Non-Capturing Group(?: [a-z]?[A-Z]+\w*)+

+repeats the group contents below at least once:

the literal (32₁₀ / 40₈ / 20₁₆)

Character Class[a-z]?

?matches at most one character from the set below:

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

Character Class[A-Z]+

+matches at least one character from the set below:

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

\w*any word character, repeated any number of times

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

\b[a-z]?[A-Z]+\w*(?: [a-z]?[A-Z]+\w*)+

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