title: $:/plugins/local/highlight-languages/tiddlywiki.js
type: application/javascript
module-type: highlight

/*\
title: $:/plugins/local/highlight-languages/tiddlywiki.js
type: application/javascript
module-type: highlight

TiddlyWiki TID and WikiText language definition for highlight.js.
\*/
"use strict";

hljs.registerLanguage("tiddlywiki",function(hljs) {
	var systemTiddler = {
			className: "symbol",
			match: /\$:\/[^\s\][\]<>{}"']+/
		},
		variable = {
			className: "variable",
			variants: [
				{
					begin: /<</,
					end: />>/
				},
				{
					match: /<[^<>\s]+>/
				}
			]
		},
		transclusion = {
			className: "template-variable",
			variants: [
				{
					begin: /\{\{\{/,
					end: /\}\}\}/
				},
				{
					begin: /\{\{/,
					end: /\}\}/
				}
			],
			contains: [
				systemTiddler,
				variable
			]
		},
		link = {
			className: "link",
			variants: [
				{
					begin: /\[\[/,
					end: /\]\]/
				},
				{
					begin: /\[(?:img|ext)\[/,
					end: /\]\]/
				}
			],
			contains: [
				systemTiddler
			]
		},
		filter = {
			className: "selector",
			begin: /\[(?=[^\]\n]*[A-Za-z][A-Za-z0-9_-]*\[)/,
			end: /\]/,
			contains: [
				{
					className: "keyword",
					match: /[A-Za-z][A-Za-z0-9_.-]*(?=\[)/
				},
				{
					className: "string",
					begin: /\[/,
					end: /\]/,
					contains: [
						systemTiddler,
						variable
					]
				},
				variable,
				systemTiddler
			]
		};

	return {
		name: "TiddlyWiki",
		aliases: [
			"tid",
			"wikitext"
		],
		contains: [
			{
				className: "comment",
				begin: /<!--/,
				end: /-->/
			},
			{
				className: "comment",
				begin: /\/%/,
				end: /%\//
			},
			{
				className: "meta",
				begin: /^\\(?:define|end|function|import|parameters|procedure|rules|whitespace|widget)\b/,
				end: /$/,
				contains: [
					variable,
					systemTiddler,
					hljs.QUOTE_STRING_MODE,
					hljs.APOS_STRING_MODE
				]
			},
			{
				className: "attr",
				match: /^[A-Za-z0-9_.-]+(?=\s*:)/
			},
			{
				className: "section",
				begin: /^!{1,6}\s+/,
				end: /$/
			},
			{
				className: "bullet",
				match: /^[*#;:]+\s+/
			},
			{
				className: "quote",
				begin: /^>{1,3}\s+/,
				end: /$/
			},
			{
				className: "tag",
				begin: /<\/?\$?[A-Za-z][A-Za-z0-9_.:-]*/,
				end: /\/?>/,
				contains: [
					{
						className: "attr",
						match: /[A-Za-z_$][A-Za-z0-9_.:-]*(?=\s*=)/
					},
					hljs.QUOTE_STRING_MODE,
					hljs.APOS_STRING_MODE,
					transclusion,
					variable,
					filter,
					systemTiddler
				]
			},
			{
				className: "template-tag",
				begin: /<</,
				end: />>/,
				contains: [
					hljs.QUOTE_STRING_MODE,
					hljs.APOS_STRING_MODE,
					systemTiddler
				]
			},
			transclusion,
			link,
			filter,
			systemTiddler,
			{
				className: "code",
				begin: /`+/,
				end: /`+/
			},
			{
				className: "strong",
				begin: /''/,
				end: /''/
			},
			{
				className: "emphasis",
				begin: /\/\//,
				end: /\/\//
			},
			{
				className: "emphasis",
				begin: /__/,
				end: /__/
			},
			{
				className: "deletion",
				begin: /~~/,
				end: /~~/
			}
		]
	};
});