Regular Expressions 101

1st Alternative[[:lower:]][[:upper:]]

Character Class[[:lower:]]

[:lower:]a lowercase letter [a-z]

Character Class[[:upper:]]

[:upper:]an uppercase letter [A-Z]

2nd Alternative\B[[:upper:]][[:lower:]]

\Bnot an ASCII word boundary

Character Class[[:upper:]]

[:upper:]an uppercase letter [A-Z]

Character Class[[:lower:]]

[:lower:]a lowercase letter [a-z]

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

Detailed match information will be displayed here automatically.

25 tokens

Regular Expression

[[:lower:]][[:upper:]]|\B[[:upper:]][[:lower:]]

New

PleaseMatch this
And alsoThis
this ASWell
thisTOO
1Aa
A1Aa
a1Aa
a1A
Though NOT THIS
Nor This
Foo_Bar