Auto-detect language

JavaScript

const html = await highlight('#!/usr/bin/env bash\necho "hello"', htmlInline({theme: frappe}))

Rust

use lumis::languages::Language;

let lang = Language::guess(Some("script.sh"), source);

Elixir

Lumis.highlight!("#!/usr/bin/env bash\necho 'hello'")

CLI

lumis highlight main.rs

Resolving the id without highlighting

Highlighting detects the language for you. To ask what a snippet is before deciding what to do with it, call the detector directly. It returns the same id highlighting would have used, falling back to plaintext.

JavaScript

import {guessLanguage} from '@lumis-sh/lumis'

guessLanguage('lib/app.ex')                      // "elixir"
guessLanguage(undefined, '#!/usr/bin/env bash')  // "bash"

Rust

use lumis::languages::Language;

assert_eq!(Language::guess(Some("lib/app.ex"), ""), Language::Elixir);
assert_eq!(Language::guess(None, "#!/usr/bin/env bash"), Language::Bash);

Elixir

Lumis.Languages.guess("lib/app.ex")
Lumis.Languages.guess(nil, "#!/usr/bin/env bash")