prismjs/components/prism-kotlin.js

(function (Prism) {
	Prism.languages.kotlin = Prism.languages.extend('clike', {
		'keyword': {
			// The lookbehind prevents wrong highlighting of e.g. kotlin.properties.get
			pattern: /(^|[^.])\b(?:abstract|actual|annotation|as|break|by|catch|class|companion|const|constructor|continue|crossinline|data|do|dynamic|else|enum|expect|external|final|finally|for|fun|get|if|import|in|infix|init|inline|inner|interface|internal|is|lateinit|noinline|null|object|open|operator|out|override|package|private|protected|public|reified|return|sealed|set|super|suspend|tailrec|this|throw|to|try|typealias|val|var|vararg|when|where|while)\b/,
			lookbehind: true
		},
		'function': [
			/\w+(?=\s*\()/,
			{
				pattern: /(\.)\w+(?=\s*\{)/,
				lookbehind: true
			}
		],
		'number': /\b(?:0[xX][\da-fA-F]+(?:_[\da-fA-F]+)*|0[bB][01]+(?:_[01]+)*|\d+(?:_\d+)*(?:\.\d+(?:_\d+)*)?(?:[eE][+-]?\d+(?:_\d+)*)?[fFL]?)\b/,
		'operator': /\+[+=]?|-[-=>]?|==?=?|!(?:!|==?)?|[\/*%<>]=?|[?:]:?|\.\.|&&|\|\||\b(?:and|inv|or|shl|shr|ushr|xor)\b/
	});

	delete Prism.languages.kotlin["class-name"];

	Prism.languages.insertBefore('kotlin', 'string', {
		'raw-string': {
			pattern: /("""|''')[\s\S]*?\1/,
			alias: 'string'
			// See interpolation below
		}
	});
	Prism.languages.insertBefore('kotlin', 'keyword', {
		'annotation': {
			pattern: /\B@(?:\w+:)?(?:[A-Z]\w*|\[[^\]]+\])/,
			alias: 'builtin'
		}
	});
	Prism.languages.insertBefore('kotlin', 'function', {
		'label': {
			pattern: /\w+@|@\w+/,
			alias: 'symbol'
		}
	});

	var interpolation = [
		{
			pattern: /\$\{[^}]+\}/,
			inside: {
				'delimiter': {
					pattern: /^\$\{|\}$/,
					alias: 'variable'
				},
				rest: Prism.languages.kotlin
			}
		},
		{
			pattern: /\$\w+/,
			alias: 'variable'
		}
	];

	Prism.languages.kotlin['string'].inside = Prism.languages.kotlin['raw-string'].inside = {
		interpolation: interpolation
	};

	Prism.languages.kt = Prism.languages.kotlin;
	Prism.languages.kts = Prism.languages.kotlin;
}(Prism));