Prism.languages.purescript = Prism.languages.extend('haskell', {
	'keyword': /\b(?:ado|case|class|data|derive|do|else|forall|if|in|infixl|infixr|instance|let|module|newtype|of|primitive|then|type|where)\b/,

	'import-statement': {
		// The imported or hidden names are not included in this import
		// statement. This is because we want to highlight those exactly like
		// we do for the names in the program.
		pattern: /(^\s*)import\s+[A-Z][\w']*(?:\.[A-Z][\w']*)*(?:\s+as\s+[A-Z][\w']*(?:\.[A-Z][\w']*)*)?(?:\s+hiding\b)?/m,
		lookbehind: true,
		inside: {
			'keyword': /\b(?:import|as|hiding)\b/
		}
	},

	// These are builtin functions only. Constructors are highlighted later as a constant.
	'builtin': /\b(?:absurd|add|ap|append|apply|between|bind|bottom|clamp|compare|comparing|compose|conj|const|degree|discard|disj|div|eq|flap|flip|gcd|identity|ifM|join|lcm|liftA1|liftM1|map|max|mempty|min|mod|mul|negate|not|notEq|one|otherwise|recip|show|sub|top|unit|unless|unlessM|void|when|whenM|zero)\b/,
});

Prism.languages.purs = Prism.languages.purescript;