Prism.languages.yaml = {
	'scalar': {
		pattern: /([\-:]\s*(![^\s]+)?[ \t]*[|>])[ \t]*(?:((?:\r?\n|\r)[ \t]+)[^\r\n]+(?:\3[^\r\n]+)*)/,
		lookbehind: true,
		alias: 'string'
	},
	'comment': /#.*/,
	'key': {
		pattern: /(\s*[:\-,[{\r\n?][ \t]*(![^\s]+)?[ \t]*)[^\r\n{[\]},#]+?(?=\s*:\s)/,
		lookbehind: true,
		alias: 'atrule'
	},
	'directive': {
		pattern: /(^[ \t]*)%.+/m,
		lookbehind: true,
		alias: 'important'
	},
	'datetime': {
		pattern: /([:\-,[{]\s*(![^\s]+)?[ \t]*)(\d{4}-\d\d?-\d\d?([tT]|[ \t]+)\d\d?:\d{2}:\d{2}(\.\d*)?[ \t]*(Z|[-+]\d\d?(:\d{2})?)?|\d{4}-\d{2}-\d{2}|\d\d?:\d{2}(:\d{2}(\.\d*)?)?)(?=[ \t]*($|,|]|}))/m,
		lookbehind: true,
		alias: 'number'
	},
	'boolean': {
		pattern: /([:\-,[{]\s*(![^\s]+)?[ \t]*)(true|false)[ \t]*(?=$|,|]|})/im,
		lookbehind: true,
		alias: 'important'
	},
	'null': {
		pattern: /([:\-,[{]\s*(![^\s]+)?[ \t]*)(null|~)[ \t]*(?=$|,|]|})/im,
		lookbehind: true,
		alias: 'important'
	},
	'string': {
		pattern: /([:\-,[{]\s*(![^\s]+)?[ \t]*)("(?:[^"\\]|\\.)*"|'(?:[^'\\]|\\.)*')(?=[ \t]*($|,|]|}))/m,
		lookbehind: true
	},
	'number': {
		pattern: /([:\-,[{]\s*(![^\s]+)?[ \t]*)[+\-]?(0x[\da-f]+|0o[0-7]+|(\d+\.?\d*|\.?\d+)(e[\+\-]?\d+)?|\.inf|\.nan)[ \t]*(?=$|,|]|})/im,
		lookbehind: true
	},
	'tag': /![^\s]+/,
	'important': /[&*][\w]+/,
	'punctuation': /---|[:[\]{}\-,|>?]|\.\.\./
};