Example: Java Identifiers

Regex matching a Java identifier:

[\p{Connector_Punctuation}\p{Currency_Symbol}\p{Mark}\p{Alphabetic}][\p{Connector_Punctuation}\p{Currency_Symbol}\p{Mark}\p{Alphabetic}\p{Numeric}]*

With abbreviations:

[\p{Pc}\p{Sc}\p{M}\p{Alpha}][\p{Pc}\p{Sc}\p{M}\p{Alpha}\p{Numeric}]*

And as a Pomsky:

[Pc Sc M Alpha]
[Pc Sc M Alpha Numeric]*