Prism.languages.parigp = {
	'comment': /\/\*[\s\S]*?\*\/|\\\\.*/,
	'string': {
		pattern: /"(?:[^"\\\r\n]|\\.)*"/,
		greedy: true
	},
	// PARI/GP does not care about white spaces at all
	// so let's process the keywords to build an appropriate regexp
	// (e.g. "b *r *e *a *k", etc.)
	'keyword': (function () {
		var keywords = [
			'breakpoint', 'break', 'dbg_down', 'dbg_err', 'dbg_up', 'dbg_x',
			'forcomposite', 'fordiv', 'forell', 'forpart', 'forprime',
			'forstep', 'forsubgroup', 'forvec', 'for', 'iferr', 'if',
			'local', 'my', 'next', 'return', 'until', 'while'
		];
		keywords = keywords.map(function (keyword) {
			return keyword.split('').join(' *');
		}).join('|');
		return RegExp('\\b(?:' + keywords + ')\\b');
	}()),
	'function': /\w[\w ]*?(?= *\()/,
	'number': {
		// The lookbehind and the negative lookahead prevent from breaking the .. operator
		pattern: /((?:\. *\. *)?)(?:\d(?: *\d)*(?: *(?!\. *\.)\.(?: *\d)*)?|\. *\d(?: *\d)*)(?: *e *[+-]? *\d(?: *\d)*)?/i,
		lookbehind: true
	},
	'operator': /\. *\.|[*\/!](?: *=)?|%(?: *=|(?: *#)?(?: *')*)?|\+(?: *[+=])?|-(?: *[-=>])?|<(?:(?: *<)?(?: *=)?| *>)?|>(?: *>)?(?: *=)?|=(?: *=){0,2}|\\(?: *\/)?(?: *=)?|&(?: *&)?|\| *\||['#~^]/,
	'punctuation': /[\[\]{}().,:;|]/
};