capnproto.js
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	/*
	Language: Cap’n Proto
	Author: Oleg Efimov <efimovov@gmail.com>
	Description: Cap’n Proto message definition format
	Website: https://capnproto.org/capnp-tool.html
	Category: protocols
	*/

	/** @type LanguageFn */
	function capnproto(hljs) {
	const KEYWORDS = [
	"struct",
	"enum",
	"interface",
	"union",
	"group",
	"import",
	"using",
	"const",
	"annotation",
	"extends",
	"in",
	"of",
	"on",
	"as",
	"with",
	"from",
	"fixed"
	];
	const BUILT_INS = [
	"Void",
	"Bool",
	"Int8",
	"Int16",
	"Int32",
	"Int64",
	"UInt8",
	"UInt16",
	"UInt32",
	"UInt64",
	"Float32",
	"Float64",
	"Text",
	"Data",
	"AnyPointer",
	"AnyStruct",
	"Capability",
	"List"
	];
	const LITERALS = [
	"true",
	"false"
	];
	return {
	name: 'Cap’n Proto',
	aliases: ['capnp'],
	keywords: {
	keyword: KEYWORDS,
	built_in: BUILT_INS,
	literal: LITERALS
	},
	contains: [
	hljs.QUOTE_STRING_MODE,
	hljs.NUMBER_MODE,
	hljs.HASH_COMMENT_MODE,
	{
	className: 'meta',
	begin: /@0x[\w\d]{16};/,
	illegal: /\n/
	},
	{
	className: 'symbol',
	begin: /@\d+\b/
	},
	{
	className: 'class',
	beginKeywords: 'struct enum',
	end: /\{/,
	illegal: /\n/,
	contains: [hljs.inherit(hljs.TITLE_MODE, {
	starts: {
	endsWithParent: true,
	excludeEnd: true
	} // hack: eating everything after the first title
	})]
	},
	{
	className: 'class',
	beginKeywords: 'interface',
	end: /\{/,
	illegal: /\n/,
	contains: [hljs.inherit(hljs.TITLE_MODE, {
	starts: {
	endsWithParent: true,
	excludeEnd: true
	} // hack: eating everything after the first title
	})]
	}
	]
	};
	}

	module.exports = capnproto;