pygments-step¶

Pygments lexers for EXPRESS (ISO 10303-11) and STEP Part 21 (ISO 10303-21).

Install¶

pip install pygments-step

The only runtime dependency is Pygments>=2.14. Python 3.9+ is supported.

What it does¶

Installing this package registers two lexers with Pygments, so every tool that renders code through Pygments — MkDocs, Sphinx, pygmentize, Rich, Jupyter — can highlight EXPRESS and STEP Part 21 without any further configuration.

Lexer	Standard	Code fence	File types
`ExpressLexer`	EXPRESS, ISO 10303-11	```express	`*.exp`
`StepFileLexer`	Part 21 exchange file, ISO 10303-21	```step21	`.p21`, `.stp`, `*.step`

Both lexers are schema-agnostic: they lex the languages, not any single application protocol, so they work equally well for IFC, AP203, AP214 or any other STEP-based schema without carrying a schema-specific keyword table.

Try it¶

See the live demo for EXPRESS and STEP Part 21 snippets that are highlighted by this exact package, the quickstart for Python and command-line usage, or build from source to produce and verify the wheel yourself.