DevKits

Code

Match a PascalCase identifier

Match class-style names like UserAccount or HttpClient.

Pattern

Regular expression

\b[A-Z][a-z0-9]+(?:[A-Z][a-z0-9]+)+\b

How it works

Starts with a capital letter followed by lowercase/digits, then one or more additional capitalized segments. Excludes single-word capitals like `User`.

Matches

  • ▸UserAccount
  • ▸HttpClient
  • ▸MyClass123

Non-matches

  • ▸User (single word)
  • ▸userAccount (starts lower)

Language snippets

JavaScript

const re = /\b[A-Z][a-z0-9]+(?:[A-Z][a-z0-9]+)+\b/g;

Python

re.findall(r"\b[A-Z][a-z0-9]+(?:[A-Z][a-z0-9]+)+\b", text)

Go

re := regexp.MustCompile(`\b[A-Z][a-z0-9]+(?:[A-Z][a-z0-9]+)+\b`)

Java

Pattern.compile("\\b[A-Z][a-z0-9]+(?:[A-Z][a-z0-9]+)+\\b")

Related patterns

Match a camelCase identifier

\b[a-z]+(?:[A-Z][a-z0-9]*)+\b

Match a snake_case identifier

\b[a-z][a-z0-9]*(?:_[a-z0-9]+)+\b

Match a C-style comment

\/\/[^\n]*|\/\*[\s\S]*?\*\/

Try any pattern live in the Regex Tester →