Webflags: g

HTML Entity

Match HTML entities in named (`&`), numeric (`{`), or hex (`💩`) form.

Try it in RegexPro →

Available in

JSSupported

JavaScript / ECMAScript

Browser-native RegExp. Default if you don't pick.

PYSupported

Python (re)

CPython stdlib `re`. Unicode-aware `\w` and `\d` by default.

GOSupported

Go (RE2)

Linear-time matching. No backreferences or lookarounds.

Pattern

regexengine-agnostic
&(?:[a-zA-Z][a-zA-Z0-9]+|#\d+|#x[0-9a-fA-F]+);   (flags: g)

Raw source: &(?:[a-zA-Z][a-zA-Z0-9]+|#\d+|#x[0-9a-fA-F]+);

How it works

The leading `&` and trailing `;` bracket the entity. The middle alternation matches: a named entity ([a-zA-Z][a-zA-Z0-9]+ — letters then alphanumerics, like `amp`, `lt`, `nbsp`); a decimal entity (#\d+, like `#160`); or a hex entity (#x[0-9a-fA-F]+, like `#xA0` or `#x1F600` for emoji).

Examples

Input

Tom & Jerry <3

Matches

  • &
  • <

Input

Numeric:   Hex: 😀

Matches

  •  
  • 😀

Input

no entities here

No match

—

Common use cases

  • •HTML scraping and entity decoding
  • •Email template entity validation
  • •Migrating legacy HTML to UTF-8
  • •Sanitization pipelines that strip non-ASCII via entities
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