(function (Prism) {
	// https://agraef.github.io/pure-docs/pure.html#lexical-matters

	Prism.languages.pure = {
		'comment': [
			{
				pattern: /(^|[^\\])\/\*[\s\S]*?\*\//,
				lookbehind: true
			},
			{
				pattern: /(^|[^\\:])\/\/.*/,
				lookbehind: true
			},
			/#!.+/
		],
		'inline-lang': {
			pattern: /%<[\s\S]+?%>/,
			greedy: true,
			inside: {
				'lang': {
					pattern: /(^%< *)-\*-.+?-\*-/,
					lookbehind: true,
					alias: 'comment'
				},
				'delimiter': {
					pattern: /^%<.*|%>$/,
					alias: 'punctuation'
				}
			}
		},
		'string': {
			pattern: /"(?:\\.|[^"\\\r\n])*"/,
			greedy: true
		},
		'number': {
			// The look-behind prevents wrong highlighting of the .. operator
			pattern: /((?:\.\.)?)(?:\b(?:inf|nan)\b|\b0x[\da-f]+|(?:\b(?:0b)?\d+(?:\.\d)?|\B\.\d)\d*(?:e[+-]?\d+)?L?)/i,
			lookbehind: true
		},
		'keyword': /\b(?:ans|break|bt|case|catch|cd|clear|const|def|del|dump|else|end|exit|extern|false|force|help|if|infix[lr]?|interface|let|ls|mem|namespace|nonfix|NULL|of|otherwise|outfix|override|postfix|prefix|private|public|pwd|quit|run|save|show|stats|then|throw|trace|true|type|underride|using|when|with)\b/,
		'function': /\b(?:abs|add_(?:(?:fundef|interface|macdef|typedef)(?:_at)?|addr|constdef|vardef)|all|any|applp?|arity|bigintp?|blob(?:_crc|_size|p)?|boolp?|byte_(?:matrix|pointer)|byte_c?string(?:_pointer)?|calloc|cat|catmap|ceil|char[ps]?|check_ptrtag|chr|clear_sentry|clearsym|closurep?|cmatrixp?|cols?|colcat(?:map)?|colmap|colrev|colvector(?:p|seq)?|complex(?:_float_(?:matrix|pointer)|_matrix(?:_view)?|_pointer|p)?|conj|cookedp?|cst|cstring(?:_(?:dup|list|vector))?|curry3?|cyclen?|del_(?:constdef|fundef|interface|macdef|typedef|vardef)|delete|diag(?:mat)?|dim|dmatrixp?|do|double(?:_matrix(?:_view)?|_pointer|p)?|dowith3?|drop|dropwhile|eval(?:cmd)?|exactp|filter|fix|fixity|flip|float(?:_matrix|_pointer)|floor|fold[lr]1?|frac|free|funp?|functionp?|gcd|get(?:_(?:byte|constdef|double|float|fundef|int(?:64)?|interface(?:_typedef)?|long|macdef|pointer|ptrtag|short|sentry|string|typedef|vardef))?|globsym|hash|head|id|im|imatrixp?|index|inexactp|infp|init|insert|int(?:_matrix(?:_view)?|_pointer|p)?|int64_(?:matrix|pointer)|integerp?|iteraten?|iterwhile|join|keys?|lambdap?|last(?:err(?:pos)?)?|lcd|list[2p]?|listmap|make_ptrtag|malloc|map|matcat|matrixp?|max|member|min|nanp|nargs|nmatrixp?|null|numberp?|ord|pack(?:ed)?|pointer(?:_cast|_tag|_type|p)?|pow|pred|ptrtag|put(?:_(?:byte|double|float|int(?:64)?|long|pointer|short|string))?|rationalp?|re|realp?|realloc|recordp?|redim|reduce(?:_with)?|refp?|repeatn?|reverse|rlistp?|round|rows?|rowcat(?:map)?|rowmap|rowrev|rowvector(?:p|seq)?|same|scan[lr]1?|sentry|sgn|short_(?:matrix|pointer)|slice|smatrixp?|sort|split|str|strcat|stream|stride|string(?:_(?:dup|list|vector)|p)?|subdiag(?:mat)?|submat|subseq2?|substr|succ|supdiag(?:mat)?|symbolp?|tail|take|takewhile|thunkp?|transpose|trunc|tuplep?|typep|ubyte|uint(?:64)?|ulong|uncurry3?|unref|unzip3?|update|ushort|vals?|varp?|vector(?:p|seq)?|void|zip3?|zipwith3?)\b/,
		'special': {
			pattern: /\b__[a-z]+__\b/i,
			alias: 'builtin'
		},
		// Any combination of operator chars can be an operator
		'operator': /(?:[!"#$%&'*+,\-.\/:<=>?@\\^`|~\u00a1-\u00bf\u00d7-\u00f7\u20d0-\u2bff]|\b_+\b)+|\b(?:and|div|mod|not|or)\b/,
		// FIXME: How can we prevent | and , to be highlighted as operator when they are used alone?
		'punctuation': /[(){}\[\];,|]/
	};

	var inlineLanguages = [
		'c',
		{ lang: 'c++', alias: 'cpp' },
		'fortran'
	];
	var inlineLanguageRe = /%< *-\*- *{lang}\d* *-\*-[\s\S]+?%>/.source;

	inlineLanguages.forEach(function (lang) {
		var alias = lang;
		if (typeof lang !== 'string') {
			alias = lang.alias;
			lang = lang.lang;
		}
		if (Prism.languages[alias]) {
			var o = {};
			o['inline-lang-' + alias] = {
				pattern: RegExp(inlineLanguageRe.replace('{lang}', lang.replace(/([.+*?\/\\(){}\[\]])/g,'\\$1')), 'i'),
				inside: Prism.util.clone(Prism.languages.pure['inline-lang'].inside)
			};
			o['inline-lang-' + alias].inside.rest = Prism.util.clone(Prism.languages[alias]);
			Prism.languages.insertBefore('pure', 'inline-lang', o);
		}
	});

	// C is the default inline language
	if (Prism.languages.c) {
		Prism.languages.pure['inline-lang'].inside.rest = Prism.util.clone(Prism.languages.c);
	}

}(Prism));