GitFOSS

Prism.languages.scala = Prism.languages.extend('java', {
	'triple-quoted-string': {
		pattern: /"""[\s\S]*?"""/,
		greedy: true,
		alias: 'string'
	},
	'string': {
		pattern: /("|')(?:\\.|(?!\1)[^\\\r\n])*\1/,
		greedy: true
	},
	'keyword': /<-|=>|\b(?:abstract|case|catch|class|def|derives|do|else|enum|extends|extension|final|finally|for|forSome|given|if|implicit|import|infix|inline|lazy|match|new|null|object|opaque|open|override|package|private|protected|return|sealed|self|super|this|throw|trait|transparent|try|type|using|val|var|while|with|yield)\b/,
	'number': /\b0x(?:[\da-f]*\.)?[\da-f]+|(?:\b\d+(?:\.\d*)?|\B\.\d+)(?:e\d+)?[dfl]?/i,
	'builtin': /\b(?:Any|AnyRef|AnyVal|Boolean|Byte|Char|Double|Float|Int|Long|Nothing|Short|String|Unit)\b/,
	'symbol': /'[^\d\s\\]\w*/
});

Prism.languages.insertBefore('scala', 'triple-quoted-string', {
	'string-interpolation': {
		pattern: /\b[a-z]\w*(?:"""(?:[^$]|\$(?:[^{]|\{(?:[^{}]|\{[^{}]*\})*\}))*?"""|"(?:[^$"\r\n]|\$(?:[^{]|\{(?:[^{}]|\{[^{}]*\})*\}))*")/i,
		greedy: true,
		inside: {
			'id': {
				pattern: /^\w+/,
				greedy: true,
				alias: 'function'
			},
			'escape': {
				pattern: /\\\$"|\$[$"]/,
				greedy: true,
				alias: 'symbol'
			},
			'interpolation': {
				pattern: /\$(?:\w+|\{(?:[^{}]|\{[^{}]*\})*\})/,
				greedy: true,
				inside: {
					'punctuation': /^\$\{?|\}$/,
					'expression': {
						pattern: /[\s\S]+/,
						inside: Prism.languages.scala
					}
				}
			},
			'string': /[\s\S]+/
		}
	}
});

delete Prism.languages.scala['class-name'];
delete Prism.languages.scala['function'];
delete Prism.languages.scala['constant'];