Running with H98 compatibility turned off to activate language extensions:

Some compilers like GCC support such constructs as a language extension.

There are several supersets of Modula-2 with language extensions for specific application domains:

An interesting alternative is to use the language extension to write @-expressions.

These compilers used language extensions to provide a more natural interface to the database by the programmer.

The best examples of language extension through macros are found in the Lisp family of languages.

On top of such a language extension, be it for Japanese, Korean or Chinese, individual input methods are maintained.

It ran faster and generated better code and incorporated many useful language extensions.

Currently available plugins provide a wide range of addition commands from language extensions and utility functions.

TypeScript is a language extension that adds features to JavaScript.