222 lines
8.1 KiB
JavaScript
222 lines
8.1 KiB
JavaScript
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/* ***** BEGIN LICENSE BLOCK *****
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* Distributed under the BSD license:
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*
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* Copyright (c) 2010, Ajax.org B.V.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Ajax.org B.V. nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL AJAX.ORG B.V. BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* ***** END LICENSE BLOCK ***** */
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define(function(require, exports, module) {
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"use strict";
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var modes = require("../config").$modes;
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var oop = require("../lib/oop");
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var lang = require("../lib/lang");
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var TextHighlightRules = require("./text_highlight_rules").TextHighlightRules;
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var HtmlHighlightRules = require("./html_highlight_rules").HtmlHighlightRules;
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var escaped = function(ch) {
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return "(?:[^" + lang.escapeRegExp(ch) + "\\\\]|\\\\.)*";
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};
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var MarkdownHighlightRules = function() {
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HtmlHighlightRules.call(this);
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// regexp must not have capturing parentheses
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// regexps are ordered -> the first match is used
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var codeBlockStartRule = {
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token : "support.function",
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regex : /^\s*(```+[^`]*|~~~+[^~]*)$/,
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onMatch: function(value, state, stack, line) {
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var m = value.match(/^(\s*)([`~]+)(.*)/);
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var language = /[\w-]+|$/.exec(m[3])[0];
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// TODO lazy-load modes
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if (!modes[language])
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language = "";
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stack.unshift("githubblock", [], [m[1], m[2], language], state);
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return this.token;
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},
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next : "githubblock"
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};
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var codeBlockRules = [{
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token : "support.function",
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regex : ".*",
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onMatch: function(value, state, stack, line) {
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var embedState = stack[1];
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var indent = stack[2][0];
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var endMarker = stack[2][1];
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var language = stack[2][2];
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var m = /^(\s*)(`+|~+)\s*$/.exec(value);
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if (
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m && m[1].length < indent.length + 3
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&& m[2].length >= endMarker.length && m[2][0] == endMarker[0]
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) {
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stack.splice(0, 3);
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this.next = stack.shift();
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return this.token;
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}
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this.next = "";
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if (language && modes[language]) {
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var data = modes[language].getTokenizer().getLineTokens(value, embedState.slice(0));
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stack[1] = data.state;
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return data.tokens;
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}
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return this.token;
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}
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}];
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this.$rules["start"].unshift({
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token : "empty_line",
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regex : '^$',
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next: "allowBlock"
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}, { // h1
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token: "markup.heading.1",
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regex: "^=+(?=\\s*$)"
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}, { // h2
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token: "markup.heading.2",
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regex: "^\\-+(?=\\s*$)"
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}, {
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token : function(value) {
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return "markup.heading." + value.length;
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},
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regex : /^#{1,6}(?=\s|$)/,
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next : "header"
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},
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codeBlockStartRule,
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{ // block quote
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token : "string.blockquote",
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regex : "^\\s*>\\s*(?:[*+-]|\\d+\\.)?\\s+",
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next : "blockquote"
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}, { // HR * - _
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token : "constant",
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regex : "^ {0,2}(?:(?: ?\\* ?){3,}|(?: ?\\- ?){3,}|(?: ?\\_ ?){3,})\\s*$",
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next: "allowBlock"
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}, { // list
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token : "markup.list",
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regex : "^\\s{0,3}(?:[*+-]|\\d+\\.)\\s+",
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next : "listblock-start"
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}, {
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include : "basic"
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});
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this.addRules({
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"basic" : [{
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token : "constant.language.escape",
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regex : /\\[\\`*_{}\[\]()#+\-.!]/
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}, { // code span `
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token : "support.function",
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regex : "(`+)(.*?[^`])(\\1)"
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}, { // reference
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token : ["text", "constant", "text", "url", "string", "text"],
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regex : "^([ ]{0,3}\\[)([^\\]]+)(\\]:\\s*)([^ ]+)(\\s*(?:[\"][^\"]+[\"])?(\\s*))$"
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}, { // link by reference
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token : ["text", "string", "text", "constant", "text"],
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regex : "(\\[)(" + escaped("]") + ")(\\]\\s*\\[)("+ escaped("]") + ")(\\])"
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}, { // link by url
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token : ["text", "string", "text", "markup.underline", "string", "text"],
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regex : "(\\!?\\[)(" + // [
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escaped("]") + // link text or alt text
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")(\\]\\()"+ // ](
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'((?:[^\\)\\s\\\\]|\\\\.|\\s(?=[^"]))*)' + // href or image
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'(\\s*"' + escaped('"') + '"\\s*)?' + // "title"
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"(\\))" // )
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}, { // strong ** __
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token : "string.strong",
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regex : "([*]{2}|[_]{2}(?=\\S))(.*?\\S[*_]*)(\\1)"
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}, { // emphasis * _
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token : "string.emphasis",
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regex : "([*]|[_](?=\\S))(.*?\\S[*_]*)(\\1)"
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}, { //
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token : ["text", "url", "text"],
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regex : "(<)("+
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"(?:https?|ftp|dict):[^'\">\\s]+"+
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"|"+
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"(?:mailto:)?[-.\\w]+\\@[-a-z0-9]+(?:\\.[-a-z0-9]+)*\\.[a-z]+"+
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")(>)"
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}],
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// code block
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"allowBlock": [
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{token : "support.function", regex : "^ {4}.+", next : "allowBlock"},
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{token : "empty_line", regex : '^$', next: "allowBlock"},
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{token : "empty", regex : "", next : "start"}
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],
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"header" : [{
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regex: "$",
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next : "start"
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}, {
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include: "basic"
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}, {
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defaultToken : "heading"
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} ],
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"listblock-start" : [{
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token : "support.variable",
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regex : /(?:\[[ x]\])?/,
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next : "listblock"
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}],
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"listblock" : [ { // Lists only escape on completely blank lines.
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token : "empty_line",
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regex : "^$",
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next : "start"
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}, { // list
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token : "markup.list",
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regex : "^\\s{0,3}(?:[*+-]|\\d+\\.)\\s+",
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next : "listblock-start"
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}, {
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include : "basic", noEscape: true
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},
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codeBlockStartRule,
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{
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defaultToken : "list" //do not use markup.list to allow stling leading `*` differntly
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} ],
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"blockquote" : [ { // Blockquotes only escape on blank lines.
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token : "empty_line",
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regex : "^\\s*$",
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next : "start"
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}, { // block quote
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token : "string.blockquote",
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regex : "^\\s*>\\s*(?:[*+-]|\\d+\\.)?\\s+",
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next : "blockquote"
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}, {
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include : "basic", noEscape: true
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}, {
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defaultToken : "string.blockquote"
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} ],
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"githubblock" : codeBlockRules
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});
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this.normalizeRules();
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};
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oop.inherits(MarkdownHighlightRules, TextHighlightRules);
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exports.MarkdownHighlightRules = MarkdownHighlightRules;
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});
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