text: /*
   * Editor.md
   *
   * @file        editormd.js
   * @version     v1.5.0
   * @description Open source online markdown editor.
   * @license     MIT License
   * @author      Pandao
   * {@link       https://github.com/pandao/editor.md}
   * @updateTime  2015-06-09
   */
  
  ;
  (function(factory) {
      "use strict";
  
      // CommonJS/Node.js
      if (typeof require === "function" && typeof exports === "object" && typeof module === "object") {
          module.exports = factory;
      } else if (typeof define === "function") // AMD/CMD/Sea.js
      {
          if (define.amd) // for Require.js
          {
              /* Require.js define replace */
          } else {
              define(["jquery"], factory); // for Sea.js
          }
      } else {
          window.editormd = factory();
      }
  
  }(function() {
  
      /* Require.js assignment replace */
  
      "use strict";
  
      var $ = (typeof(jQuery) !== "undefined") ? jQuery : Zepto;
  
      if (typeof($) === "undefined") {
          return;
      }
  
      /**
       * editormd
       *
       * @param   {String} id           编辑器的ID
       * @param   {Object} options      配置选项 Key/Value
       * @returns {Object} editormd     返回editormd对象
       */
  
      var editormd = function(id, options) {
          return new editormd.fn.init(id, options);
      };
  
      editormd.title = editormd.$name = "Editor.md";
      editormd.version = "1.5.0";
      editormd.homePage = "https://pandao.github.io/editor.md/";
      editormd.classPrefix = "editormd-";
  
      editormd.toolbarModes = {
          full: [
              "undo", "redo", "|",
              "bold", "del", "italic", "quote", "ucwords", "uppercase", "lowercase", "|",
              "h1", "h2", "h3", "h4", "h5", "h6", "|",
              "list-ul", "list-ol", "hr", "|",
              "link", "reference-link", "image", "code", "preformatted-text", "code-block", "table", "datetime", "emoji", "html-entities", "pagebreak", "|",
              "goto-line", "watch", "preview", "fullscreen", "clear", "search", "|",
              "help", "info"
          ],
          simple: [
              "undo", "redo", "|",
              "bold", "del", "italic", "quote", "uppercase", "lowercase", "|",
              "h1", "h2", "h3", "h4", "h5", "h6", "|",
              "list-ul", "list-ol", "hr", "|",
              "watch", "preview", "fullscreen", "|",
              "help", "info"
          ],
          mini: [
              "undo", "redo", "|",
              "watch", "preview", "|",
              "help", "info"
          ]
      };
  
      editormd.defaults = {
          mode: "gfm", //gfm or markdown
          name: "", // Form element name
          value: "", // value for CodeMirror, if mode not gfm/markdown
          theme: "", // Editor.md self themes, before v1.5.0 is CodeMirror theme, default empty
          editorTheme: "default", // Editor area, this is CodeMirror theme at v1.5.0
          previewTheme: "", // Preview area theme, default empty
          markdown: "", // Markdown source code
          appendMarkdown: "", // if in init textarea value not empty, append markdown to textarea
          width: "100%",
          height: "100%",
          path: "./lib/", // Dependents module file directory
          pluginPath: "", // If this empty, default use settings.path + "../plugins/"
          delay: 300, // Delay parse markdown to html, Uint : ms
          autoLoadModules: true, // Automatic load dependent module files
          watch: true,
          placeholder: "Enjoy Markdown! coding now...",
          gotoLine: true,
          codeFold: false,
          autoHeight: false,
          autoFocus: true,
          autoCloseTags: true,
          searchReplace: true,
          syncScrolling: true, // true | false | "single", default true
          readOnly: false,
          tabSize: 4,
          indentUnit: 4,
          lineNumbers: true,
          lineWrapping: true,
          autoCloseBrackets: true,
          showTrailingSpace: true,
          matchBrackets: true,
          indentWithTabs: true,
          styleSelectedText: true,
          matchWordHighlight: true, // options: true, false, "onselected"
          styleActiveLine: true, // Highlight the current line
          dialogLockScreen: true,
          dialogShowMask: true,
          dialogDraggable: true,
          dialogMaskBgColor: "#fff",
          dialogMaskOpacity: 0.1,
          fontSize: "13px",
          saveHTMLToTextarea: false,
          disabledKeyMaps: [],
  
          onload: function() {},
          onresize: function() {},
          onchange: function() {},
          onwatch: null,
          onunwatch: null,
          onpreviewing: function() {},
          onpreviewed: function() {},
          onfullscreen: function() {},
          onfullscreenExit: function() {},
          onscroll: function() {},
          onpreviewscroll: function() {},
  
          imageUpload: false,
          imageFormats: ["jpg", "jpeg", "gif", "png", "bmp", "webp"],
          imageUploadURL: "",
          crossDomainUpload: false,
          uploadCallbackURL: "",
  
          toc: true, // Table of contents
          tocm: false, // Using [TOCM], auto create ToC dropdown menu
          tocTitle: "", // for ToC dropdown menu btn
          tocDropdown: false,
          tocContainer: "",
          tocStartLevel: 1, // Said from H1 to create ToC
          htmlDecode: false, // Open the HTML tag identification
          pageBreak: true, // Enable parse page break [========]
          atLink: true, // for @link
          emailLink: true, // for email address auto link
          taskList: false, // Enable Github Flavored Markdown task lists
          emoji: false, // :emoji: , Support Github emoji, Twitter Emoji (Twemoji);
          // Support FontAwesome icon emoji :fa-xxx: > Using fontAwesome icon web fonts;
          // Support Editor.md logo icon emoji :editormd-logo: :editormd-logo-1x: > 1~8x;
          tex: false, // TeX(LaTeX), based on KaTeX
          flowChart: false, // flowChart.js only support IE9+
          sequenceDiagram: false, // sequenceDiagram.js only support IE9+
          previewCodeHighlight: true,
  
          toolbar: true, // show/hide toolbar
          toolbarAutoFixed: true, // on window scroll auto fixed position
          toolbarIcons: "full",
          toolbarTitles: {},
          toolbarHandlers: {
              ucwords: function() {
                  return editormd.toolbarHandlers.ucwords;
              },
              lowercase: function() {
                  return editormd.toolbarHandlers.lowercase;
              }
          },
          toolbarCustomIcons: { // using html tag create toolbar icon, unused default <a> tag.
              lowercase: "<a href=\"javascript:;\" title=\"Lowercase\" unselectable=\"on\"><i class=\"fa\" name=\"lowercase\" style=\"font-size:24px;margin-top: -10px;\">a</i></a>",
              "ucwords": "<a href=\"javascript:;\" title=\"ucwords\" unselectable=\"on\"><i class=\"fa\" name=\"ucwords\" style=\"font-size:20px;margin-top: -3px;\">Aa</i></a>"
          },
          toolbarIconsClass: {
              undo: "fa-undo",
              redo: "fa-repeat",
              bold: "fa-bold",
              del: "fa-strikethrough",
              italic: "fa-italic",
              quote: "fa-quote-left",
              uppercase: "fa-font",
              h1: editormd.classPrefix + "bold",
              h2: editormd.classPrefix + "bold",
              h3: editormd.classPrefix + "bold",
              h4: editormd.classPrefix + "bold",
              h5: editormd.classPrefix + "bold",
              h6: editormd.classPrefix + "bold",
              "list-ul": "fa-list-ul",
              "list-ol": "fa-list-ol",
              hr: "fa-minus",
              link: "fa-link",
              "reference-link": "fa-anchor",
              image: "fa-picture-o",
              code: "fa-code",
              "preformatted-text": "fa-file-code-o",
              "code-block": "fa-file-code-o",
              table: "fa-table",
              datetime: "fa-clock-o",
              emoji: "fa-smile-o",
              "html-entities": "fa-copyright",
              pagebreak: "fa-newspaper-o",
              "goto-line": "fa-terminal", // fa-crosshairs
              watch: "fa-eye-slash",
              unwatch: "fa-eye",
              preview: "fa-desktop",
              search: "fa-search",
              fullscreen: "fa-arrows-alt",
              clear: "fa-eraser",
              help: "fa-question-circle",
              info: "fa-info-circle"
          },
          toolbarIconTexts: {},
  
          lang: {
              name: "zh-cn",
              description: "开源在线Markdown编辑器<br/>Open source online Markdown editor.",
              tocTitle: "目录",
              toolbar: {
                  undo: "撤销（Ctrl+Z）",
                  redo: "重做（Ctrl+Y）",
                  bold: "粗体",
                  del: "删除线",
                  italic: "斜体",
                  quote: "引用",
                  ucwords: "将每个单词首字母转成大写",
                  uppercase: "将所选转换成大写",
                  lowercase: "将所选转换成小写",
                  h1: "标题1",
                  h2: "标题2",
                  h3: "标题3",
                  h4: "标题4",
                  h5: "标题5",
                  h6: "标题6",
                  "list-ul": "无序列表",
                  "list-ol": "有序列表",
                  hr: "横线",
                  link: "链接",
                  "reference-link": "引用链接",
                  image: "添加图片",
                  code: "行内代码",
                  "preformatted-text": "预格式文本 / 代码块（缩进风格）",
                  "code-block": "代码块（多语言风格）",
                  table: "添加表格",
                  datetime: "日期时间",
                  emoji: "Emoji表情",
                  "html-entities": "HTML实体字符",
                  pagebreak: "插入分页符",
                  "goto-line": "跳转到行",
                  watch: "关闭实时预览",
                  unwatch: "开启实时预览",
                  preview: "全窗口预览HTML（按 Shift + ESC还原）",
                  fullscreen: "全屏（按ESC还原）",
                  clear: "清空",
                  search: "搜索",
                  help: "使用帮助",
                  info: "关于" + editormd.title
              },
              buttons: {
                  enter: "确定",
                  cancel: "取消",
                  close: "关闭"
              },
              dialog: {
                  link: {
                      title: "添加链接",
                      url: "链接地址",
                      urlTitle: "链接标题",
                      urlEmpty: "错误：请填写链接地址。"
                  },
                  referenceLink: {
                      title: "添加引用链接",
                      name: "引用名称",
                      url: "链接地址",
                      urlId: "链接ID",
                      urlTitle: "链接标题",
                      nameEmpty: "错误：引用链接的名称不能为空。",
                      idEmpty: "错误：请填写引用链接的ID。",
                      urlEmpty: "错误：请填写引用链接的URL地址。"
                  },
                  image: {
                      title: "添加图片",
                      url: "图片地址",
                      link: "图片链接",
                      alt: "图片描述",
                      uploadButton: "本地上传",
                      imageURLEmpty: "错误：图片地址不能为空。",
                      uploadFileEmpty: "错误：上传的图片不能为空。",
                      formatNotAllowed: "错误：只允许上传图片文件，允许上传的图片文件格式有："
                  },
                  preformattedText: {
                      title: "添加预格式文本或代码块",
                      emptyAlert: "错误：请填写预格式文本或代码的内容。"
                  },
                  codeBlock: {
                      title: "添加代码块",
                      selectLabel: "代码语言：",
                      selectDefaultText: "请选择代码语言",
                      otherLanguage: "其他语言",
                      unselectedLanguageAlert: "错误：请选择代码所属的语言类型。",
                      codeEmptyAlert: "错误：请填写代码内容。"
                  },
                  htmlEntities: {
                      title: "HTML 实体字符"
                  },
                  help: {
                      title: "使用帮助"
                  }
              }
          }
      };
  
      editormd.classNames = {
          tex: editormd.classPrefix + "tex"
      };
  
      editormd.dialogZindex = 99999;
  
      editormd.$katex = null;
      editormd.$marked = null;
      editormd.$CodeMirror = null;
      editormd.$prettyPrint = null;
  
      var timer, flowchartTimer;
  
      editormd.prototype = editormd.fn = {
          state: {
              watching: false,
              loaded: false,
              preview: false,
              fullscreen: false
          },
  
          /**
           * 构造函数/实例初始化
           * Constructor / instance initialization
           *
           * @param   {String}   id            编辑器的ID
           * @param   {Object}   [options={}]  配置选项 Key/Value
           * @returns {editormd}               返回editormd的实例对象
           */
  
          init: function(id, options) {
  
              options = options || {};
  
              if (typeof id === "object") {
                  options = id;
              }
  
              var _this = this;
              var classPrefix = this.classPrefix = editormd.classPrefix;
              var settings = this.settings = $.extend(true, editormd.defaults, options);
  
              id = (typeof id === "object") ? settings.id : id;
  
              var editor = this.editor = $("#" + id);
  
              this.id = id;
              this.lang = settings.lang;
  
              var classNames = this.classNames = {
                  textarea: {
                      html: classPrefix + "html-textarea",
                      markdown: classPrefix + "markdown-textarea"
                  }
              };
  
              settings.pluginPath = (settings.pluginPath === "") ? settings.path + "../plugins/" : settings.pluginPath;
  
              this.state.watching = (settings.watch) ? true : false;
  
              if (!editor.hasClass("editormd")) {
                  editor.addClass("editormd");
              }
  
              editor.css({
                  width: (typeof settings.width === "number") ? settings.width + "px" : settings.width,
                  height: (typeof settings.height === "number") ? settings.height + "px" : settings.height
              });
  
              if (settings.autoHeight) {
                  editor.css("height", "auto");
              }
  
              var markdownTextarea = this.markdownTextarea = editor.children("textarea");
  
              if (markdownTextarea.length < 1) {
                  editor.append("<textarea></textarea>");
                  markdownTextarea = this.markdownTextarea = editor.children("textarea");
              }
  
              markdownTextarea.addClass(classNames.textarea.markdown).attr("placeholder", settings.placeholder);
  
              if (typeof markdownTextarea.attr("name") === "undefined" || markdownTextarea.attr("name") === "") {
                  markdownTextarea.attr("name", (settings.name !== "") ? settings.name : id + "-markdown-doc");
              }
  
              var appendElements = [
                  (!settings.readOnly) ? "<a href=\"javascript:;\" class=\"fa fa-close " + classPrefix + "preview-close-btn\"></a>" : "", ((settings.saveHTMLToTextarea) ? "<textarea class=\"" + classNames.textarea.html + "\" name=\"" + id + "-html-code\"></textarea>" : ""),
                  "<div class=\"" + classPrefix + "preview\"><div class=\"markdown-body " + classPrefix + "preview-container\"></div></div>",
                  "<div class=\"" + classPrefix + "container-mask\" style=\"display:block;\"></div>",
                  "<div class=\"" + classPrefix + "mask\"></div>"
              ].join("\n");
  
              editor.append(appendElements).addClass(classPrefix + "vertical");
  
              if (settings.theme !== "") {
                  editor.addClass(classPrefix + "theme-" + settings.theme);
              }
  
              this.mask = editor.children("." + classPrefix + "mask");
              this.containerMask = editor.children("." + classPrefix + "container-mask");
  
              if (settings.markdown !== "") {
                  markdownTextarea.val(settings.markdown);
              }
  
              if (settings.appendMarkdown !== "") {
                  markdownTextarea.val(markdownTextarea.val() + settings.appendMarkdown);
              }
  
              this.htmlTextarea = editor.children("." + classNames.textarea.html);
              this.preview = editor.children("." + classPrefix + "preview");
              this.previewContainer = this.preview.children("." + classPrefix + "preview-container");
  
              if (settings.previewTheme !== "") {
                  this.preview.addClass(classPrefix + "preview-theme-" + settings.previewTheme);
              }
  
              if (typeof define === "function" && define.amd) {
                  if (typeof katex !== "undefined") {
                      editormd.$katex = katex;
                  }
  
                  if (settings.searchReplace && !settings.readOnly) {
                      editormd.loadCSS(settings.path + "codemirror/addon/dialog/dialog");
                      editormd.loadCSS(settings.path + "codemirror/addon/search/matchesonscrollbar");
                  }
              }
  
              if ((typeof define === "function" && define.amd) || !settings.autoLoadModules) {
                  if (typeof CodeMirror !== "undefined") {
                      editormd.$CodeMirror = CodeMirror;
                  }
  
                  if (typeof marked !== "undefined") {
                      editormd.$marked = marked;
                  }
  
                  this.setCodeMirror().setToolbar().loadedDisplay();
              } else {
                  this.loadQueues();
              }
  
              return this;
          },
  
          /**
           * 所需组件加载队列
           * Required components loading queue
           *
           * @returns {editormd}  返回editormd的实例对象
           */
  
          loadQueues: function() {
              var _this = this;
              var settings = this.settings;
              var loadPath = settings.path;
  
              var loadFlowChartOrSequenceDiagram = function() {
  
                  if (editormd.isIE8) {
                      _this.loadedDisplay();
  
                      return;
                  }
  
                  if (settings.flowChart || settings.sequenceDiagram) {
                      editormd.loadScript(loadPath + "raphael.min", function() {
  
                          editormd.loadScript(loadPath + "underscore.min", function() {
  
                              if (!settings.flowChart && settings.sequenceDiagram) {
                                  editormd.loadScript(loadPath + "sequence-diagram.min", function() {
                                      _this.loadedDisplay();
                                  });
                              } else if (settings.flowChart && !settings.sequenceDiagram) {
                                  editormd.loadScript(loadPath + "flowchart.min", function() {
                                      editormd.loadScript(loadPath + "jquery.flowchart.min", function() {
                                          _this.loadedDisplay();
                                      });
                                  });
                              } else if (settings.flowChart && settings.sequenceDiagram) {
                                  editormd.loadScript(loadPath + "flowchart.min", function() {
                                      editormd.loadScript(loadPath + "jquery.flowchart.min", function() {
                                          editormd.loadScript(loadPath + "sequence-diagram.min", function() {
                                              _this.loadedDisplay();
                                          });
                                      });
                                  });
                              }
                          });
  
                      });
                  } else {
                      _this.loadedDisplay();
                  }
              };
  
              editormd.loadCSS(loadPath + "codemirror/codemirror.min");
  
              if (settings.searchReplace && !settings.readOnly) {
                  editormd.loadCSS(loadPath + "codemirror/addon/dialog/dialog");
                  editormd.loadCSS(loadPath + "codemirror/addon/search/matchesonscrollbar");
              }
  
              if (settings.codeFold) {
                  editormd.loadCSS(loadPath + "codemirror/addon/fold/foldgutter");
              }
  
              editormd.loadScript(loadPath + "codemirror/codemirror.min", function() {
                  editormd.$CodeMirror = CodeMirror;
  
                  editormd.loadScript(loadPath + "codemirror/modes.min", function() {
  
                      editormd.loadScript(loadPath + "codemirror/addons.min", function() {
  
                          _this.setCodeMirror();
  
                          if (settings.mode !== "gfm" && settings.mode !== "markdown") {
                              _this.loadedDisplay();
  
                              return false;
                          }
  
                          _this.setToolbar();
  
                          editormd.loadScript(loadPath + "marked.min", function() {
  
                              editormd.$marked = marked;
  
                              if (settings.previewCodeHighlight) {
                                  editormd.loadScript(loadPath + "prettify.min", function() {
                                      loadFlowChartOrSequenceDiagram();
                                  });
                              } else {
                                  loadFlowChartOrSequenceDiagram();
                              }
                          });
  
                      });
  
                  });
  
              });
  
              return this;
          },
  
          /**
           * 设置 Editor.md 的整体主题，主要是工具栏
           * Setting Editor.md theme
           *
           * @returns {editormd}  返回editormd的实例对象
           */
  
          setTheme: function(theme) {
              var editor = this.editor;
              var oldTheme = this.settings.theme;
              var themePrefix = this.classPrefix + "theme-";
  
              editor.removeClass(themePrefix + oldTheme).addClass(themePrefix + theme);
  
              this.settings.theme = theme;
  
              return this;
          },
  
          /**
           * 设置 CodeMirror（编辑区）的主题
           * Setting CodeMirror (Editor area) theme
           *
           * @returns {editormd}  返回editormd的实例对象
           */
  
          setEditorTheme: function(theme) {
              var settings = this.settings;
              settings.editorTheme = theme;
  
              if (theme !== "default") {
                  editormd.loadCSS(settings.path + "codemirror/theme/" + settings.editorTheme);
              }
  
              this.cm.setOption("theme", theme);
  
              return this;
          },
  
          /**
           * setEditorTheme() 的别名
           * setEditorTheme() alias
           *
           * @returns {editormd}  返回editormd的实例对象
           */
  
          setCodeMirrorTheme: function(theme) {
              this.setEditorTheme(theme);
  
              return this;
          },
  
          /**
           * 设置 Editor.md 的主题
           * Setting Editor.md theme
           *
           * @returns {editormd}  返回editormd的实例对象
           */
  
          setPreviewTheme: function(theme) {
              var preview = this.preview;
              var oldTheme = this.settings.previewTheme;
              var themePrefix = this.classPrefix + "preview-theme-";
  
              preview.removeClass(themePrefix + oldTheme).addClass(themePrefix + theme);
  
              this.settings.previewTheme = theme;
  
              return this;
          },
  
          /**
           * 配置和初始化CodeMirror组件
           * CodeMirror initialization
           *
           * @returns {editormd}  返回editormd的实例对象
           */
  
          setCodeMirror: function() {
              var settings = this.settings;
              var editor = this.editor;
  
              if (settings.editorTheme !== "default") {
                  editormd.loadCSS(settings.path + "codemirror/theme/" + settings.editorTheme);
              }
  
              var codeMirrorConfig = {
                  mode: settings.mode,
                  theme: settings.editorTheme,
                  tabSize: settings.tabSize,
                  dragDrop: false,
                  autofocus: settings.autoFocus,
                  autoCloseTags: settings.autoCloseTags,
                  readOnly: (settings.readOnly) ? "nocursor" : false,
                  indentUnit: settings.indentUnit,
                  lineNumbers: settings.lineNumbers,
                  lineWrapping: settings.lineWrapping,
                  extraKeys: {
                      "Ctrl-Q": function(cm) {
                          cm.foldCode(cm.getCursor());
                      }
                  },
                  foldGutter: settings.codeFold,
                  gutters: ["CodeMirror-linenumbers", "CodeMirror-foldgutter"],
                  matchBrackets: settings.matchBrackets,
                  indentWithTabs: settings.indentWithTabs,
                  styleActiveLine: settings.styleActiveLine,
                  styleSelectedText: settings.styleSelectedText,
                  autoCloseBrackets: settings.autoCloseBrackets,
                  showTrailingSpace: settings.showTrailingSpace,
                  highlightSelectionMatches: ((!settings.matchWordHighlight) ? false : {
                      showToken: (settings.matchWordHighlight === "onselected") ? false : /\w/
                  })
              };
  
              this.codeEditor = this.cm = editormd.$CodeMirror.fromTextArea(this.markdownTextarea[0], codeMirrorConfig);
              this.codeMirror = this.cmElement = editor.children(".CodeMirror");
  
              if (settings.value !== "") {
                  this.cm.setValue(settings.value);
              }
  
              this.codeMirror.css({
                  fontSize: settings.fontSize,
                  width: (!settings.watch) ? "100%" : "50%"
              });
  
              if (settings.autoHeight) {
                  this.codeMirror.css("height", "auto");
                  this.cm.setOption("viewportMargin", Infinity);
              }
  
              if (!settings.lineNumbers) {
                  this.codeMirror.find(".CodeMirror-gutters").css("border-right", "none");
              }
  
              return this;
          },
  
          /**
           * 获取CodeMirror的配置选项
           * Get CodeMirror setting options
           *
           * @returns {Mixed}                  return CodeMirror setting option value
           */
  
          getCodeMirrorOption: function(key) {
              return this.cm.getOption(key);
          },
  
          /**
           * 配置和重配置CodeMirror的选项
           * CodeMirror setting options / resettings
           *
           * @returns {editormd}  返回editormd的实例对象
           */
  
          setCodeMirrorOption: function(key, value) {
  
              this.cm.setOption(key, value);
  
              return this;
          },
  
          /**
           * 添加 CodeMirror 键盘快捷键
           * Add CodeMirror keyboard shortcuts key map
           *
           * @returns {editormd}  返回editormd的实例对象
           */
  
          addKeyMap: function(map, bottom) {
              this.cm.addKeyMap(map, bottom);
  
              return this;
          },
  
          /**
           * 移除 CodeMirror 键盘快捷键
           * Remove CodeMirror keyboard shortcuts key map
           *
           * @returns {editormd}  返回editormd的实例对象
           */
  
          removeKeyMap: function(map) {
              this.cm.removeKeyMap(map);
  
              return this;
          },
  
          /**
           * 跳转到指定的行
           * Goto CodeMirror line
           *
           * @param   {String|Intiger}   line      line number or "first"|"last"
           * @returns {editormd}                   返回editormd的实例对象
           */
  
          gotoLine: function(line) {
  
              var settings = this.settings;
  
              if (!settings.gotoLine) {
                  return this;
              }
  
              var cm = this.cm;
              var editor = this.editor;
              var count = cm.lineCount();
              var preview = this.preview;
  
              if (typeof line === "string") {
                  if (line === "last") {
                      line = count;
                  }
  
                  if (line === "first") {
                      line = 1;
                  }
              }
  
              if (typeof line !== "number") {
                  alert("Error: The line number must be an integer.");
                  return this;
              }
  
              line = parseInt(line) - 1;
  
              if (line > count) {
                  alert("Error: The line number range 1-" + count);
  
                  return this;
              }
  
              cm.setCursor({
                  line: line,
                  ch: 0
              });
  
              var scrollInfo = cm.getScrollInfo();
              var clientHeight = scrollInfo.clientHeight;
              var coords = cm.charCoords({
                  line: line,
                  ch: 0
              }, "local");
  
              cm.scrollTo(null, (coords.top + coords.bottom - clientHeight) / 2);
  
              if (settings.watch) {
                  var cmScroll = this.codeMirror.find(".CodeMirror-scroll")[0];
                  var height = $(cmScroll).height();
                  var scrollTop = cmScroll.scrollTop;
                  var percent = (scrollTop / cmScroll.scrollHeight);
  
                  if (scrollTop === 0) {
                      preview.scrollTop(0);
                  } else if (scrollTop + height >= cmScroll.scrollHeight - 16) {
                      preview.scrollTop(preview[0].scrollHeight);
                  } else {
                      preview.scrollTop(preview[0].scrollHeight * percent);
                  }
              }
  
              cm.focus();
  
              return this;
          },
  
          /**
           * 扩展当前实例对象，可同时设置多个或者只设置一个
           * Extend editormd instance object, can mutil setting.
           *
           * @returns {editormd}                  this(editormd instance object.)
           */
  
          extend: function() {
              if (typeof arguments[1] !== "undefined") {
                  if (typeof arguments[1] === "function") {
                      arguments[1] = $.proxy(arguments[1], this);
                  }
  
                  this[arguments[0]] = arguments[1];
              }
  
              if (typeof arguments[0] === "object" && typeof arguments[0].length === "undefined") {
                  $.extend(true, this, arguments[0]);
              }
  
              return this;
          },
  
          /**
           * 设置或扩展当前实例对象，单个设置
           * Extend editormd instance object, one by one
           *
           * @param   {String|Object}   key       option key
           * @param   {String|Object}   value     option value
           * @returns {editormd}                  this(editormd instance object.)
           */
  
          set: function(key, value) {
  
              if (typeof value !== "undefined" && typeof value === "function") {
                  value = $.proxy(value, this);
              }
  
              this[key] = value;
  
              return this;
          },
  
          /**
           * 重新配置
           * Resetting editor options
           *
           * @param   {String|Object}   key       option key
           * @param   {String|Object}   value     option value
           * @returns {editormd}                  this(editormd instance object.)
           */
  
          config: function(key, value) {
              var settings = this.settings;
  
              if (typeof key === "object") {
                  settings = $.extend(true, settings, key);
              }
  
              if (typeof key === "string") {
                  settings[key] = value;
              }
  
              this.settings = settings;
              this.recreate();
  
              return this;
          },
  
          /**
           * 注册事件处理方法
           * Bind editor event handle
           *
           * @param   {String}     eventType      event type
           * @param   {Function}   callback       回调函数
           * @returns {editormd}                  this(editormd instance object.)
           */
  
          on: function(eventType, callback) {
              var settings = this.settings;
  
              if (typeof settings["on" + eventType] !== "undefined") {
                  settings["on" + eventType] = $.proxy(callback, this);
              }
  
              return this;
          },
  
          /**
           * 解除事件处理方法
           * Unbind editor event handle
           *
           * @param   {String}   eventType          event type
           * @returns {editormd}                    this(editormd instance object.)
           */
  
          off: function(eventType) {
              var settings = this.settings;
  
              if (typeof settings["on" + eventType] !== "undefined") {
                  settings["on" + eventType] = function() {};
              }
  
              return this;
          },
  
          /**
           * 显示工具栏
           * Display toolbar
           *
           * @param   {Function} [callback=function(){}] 回调函数
           * @returns {editormd}  返回editormd的实例对象
           */
  
          showToolbar: function(callback) {
              var settings = this.settings;
  
              if (settings.readOnly) {
                  return this;
              }
  
              if (settings.toolbar && (this.toolbar.length < 1 || this.toolbar.find("." + this.classPrefix + "menu").html() === "")) {
                  this.setToolbar();
              }
  
              settings.toolbar = true;
  
              this.toolbar.show();
              this.resize();
  
              $.proxy(callback || function() {}, this)();
  
              return this;
          },
  
          /**
           * 隐藏工具栏
           * Hide toolbar
           *
           * @param   {Function} [callback=function(){}] 回调函数
           * @returns {editormd}                         this(editormd instance object.)
           */
  
          hideToolbar: function(callback) {
              var settings = this.settings;
  
              settings.toolbar = false;
              this.toolbar.hide();
              this.resize();
  
              $.proxy(callback || function() {}, this)();
  
              return this;
          },
  
          /**
           * 页面滚动时工具栏的固定定位
           * Set toolbar in window scroll auto fixed position
           *
           * @returns {editormd}  返回editormd的实例对象
           */
  
          setToolbarAutoFixed: function(fixed) {
  
              var state = this.state;
              var editor = this.editor;
              var toolbar = this.toolbar;
              var settings = this.settings;
  
              if (typeof fixed !== "undefined") {
                  settings.toolbarAutoFixed = fixed;
              }
  
              var autoFixedHandle = function() {
                  var $window = $(window);
                  var top = $window.scrollTop();
  
                  if (!settings.toolbarAutoFixed) {
                      return false;
                  }
  
                  if (top - editor.offset().top > 10 && top < editor.height()) {
                      toolbar.css({
                          position: "fixed",
                          width: editor.width() + "px",
                          left: ($window.width() - editor.width()) / 2 + "px"
                      });
                  } else {
                      toolbar.css({
                          position: "absolute",
                          width: "100%",
                          left: 0
                      });
                  }
              };
  
              if (!state.fullscreen && !state.preview && settings.toolbar && settings.toolbarAutoFixed) {
                  $(window).bind("scroll", autoFixedHandle);
              }
  
              return this;
          },
  
          /**
           * 配置和初始化工具栏
           * Set toolbar and Initialization
           *
           * @returns {editormd}  返回editormd的实例对象
           */
  
          setToolbar: function() {
              var settings = this.settings;
  
              if (settings.readOnly) {
                  return this;
              }
  
              var editor = this.editor;
              var preview = this.preview;
              var classPrefix = this.classPrefix;
  
              var toolbar = this.toolbar = editor.children("." + classPrefix + "toolbar");
  
              if (settings.toolbar && toolbar.length < 1) {
                  var toolbarHTML = "<div class=\"" + classPrefix + "toolbar\"><div class=\"" + classPrefix + "toolbar-container\"><ul class=\"" + classPrefix + "menu\"></ul></div></div>";
  
                  editor.append(toolbarHTML);
                  toolbar = this.toolbar = editor.children("." + classPrefix + "toolbar");
              }
  
              if (!settings.toolbar) {
                  toolbar.hide();
  
                  return this;
              }
  
              toolbar.show();
  
              var icons = (typeof settings.toolbarIcons === "function") ? settings.toolbarIcons() : ((typeof settings.toolbarIcons === "string") ? editormd.toolbarModes[settings.toolbarIcons] : settings.toolbarIcons);
  
              var toolbarMenu = toolbar.find("." + this.classPrefix + "menu"),
                  menu = "";
              var pullRight = false;
  
              for (var i = 0, len = icons.length; i < len; i++) {
                  var name = icons[i];
  
                  if (name === "||") {
                      pullRight = true;
                  } else if (name === "|") {
                      menu += "<li class=\"divider\" unselectable=\"on\">|</li>";
                  } else {
                      var isHeader = (/h(\d)/.test(name));
                      var index = name;
  
                      if (name === "watch" && !settings.watch) {
                          index = "unwatch";
                      }
  
                      var title = settings.lang.toolbar[index];
                      var iconTexts = settings.toolbarIconTexts[index];
                      var iconClass = settings.toolbarIconsClass[index];
  
                      title = (typeof title === "undefined") ? "" : title;
                      iconTexts = (typeof iconTexts === "undefined") ? "" : iconTexts;
                      iconClass = (typeof iconClass === "undefined") ? "" : iconClass;
  
                      var menuItem = pullRight ? "<li class=\"pull-right\">" : "<li>";
  
                      if (typeof settings.toolbarCustomIcons[name] !== "undefined" && typeof settings.toolbarCustomIcons[name] !== "function") {
                          menuItem += settings.toolbarCustomIcons[name];
                      } else {
                          menuItem += "<a href=\"javascript:;\" title=\"" + title + "\" unselectable=\"on\">";
                          menuItem += "<i class=\"fa " + iconClass + "\" name=\"" + name + "\" unselectable=\"on\">" + ((isHeader) ? name.toUpperCase() : ((iconClass === "") ? iconTexts : "")) + "</i>";
                          menuItem += "</a>";
                      }
  
                      menuItem += "</li>";
  
                      menu = pullRight ? menuItem + menu : menu + menuItem;
                  }
              }
  
              toolbarMenu.html(menu);
  
              toolbarMenu.find("[title=\"Lowercase\"]").attr("title", settings.lang.toolbar.lowercase);
              toolbarMenu.find("[title=\"ucwords\"]").attr("title", settings.lang.toolbar.ucwords);
  
              this.setToolbarHandler();
              this.setToolbarAutoFixed();
  
              return this;
          },
  
          /**
           * 工具栏图标事件处理对象序列
           * Get toolbar icons event handlers
           *
           * @param   {Object}   cm    CodeMirror的实例对象
           * @param   {String}   name  要获取的事件处理器名称
           * @returns {Object}         返回处理对象序列
           */
  
          dialogLockScreen: function() {
              $.proxy(editormd.dialogLockScreen, this)();
  
              return this;
          },
  
          dialogShowMask: function(dialog) {
              $.proxy(editormd.dialogShowMask, this)(dialog);
  
              return this;
          },
  
          getToolbarHandles: function(name) {
              var toolbarHandlers = this.toolbarHandlers = editormd.toolbarHandlers;
  
              return (name && typeof toolbarIconHandlers[name] !== "undefined") ? toolbarHandlers[name] : toolbarHandlers;
          },
  
          /**
           * 工具栏图标事件处理器
           * Bind toolbar icons event handle
           *
           * @returns {editormd}  返回editormd的实例对象
           */
  
          setToolbarHandler: function() {
              var _this = this;
              var settings = this.settings;
  
              if (!settings.toolbar || settings.readOnly) {
                  return this;
              }
  
              var toolbar = this.toolbar;
              var cm = this.cm;
              var classPrefix = this.classPrefix;
              var toolbarIcons = this.toolbarIcons = toolbar.find("." + classPrefix + "menu > li > a");
              var toolbarIconHandlers = this.getToolbarHandles();
  
              toolbarIcons.bind(editormd.mouseOrTouch("click", "touchend"), function(event) {
  
                  var icon = $(this).children(".fa");
                  var name = icon.attr("name");
                  var cursor = cm.getCursor();
                  var selection = cm.getSelection();
  
                  if (name === "") {
                      return;
                  }
  
                  _this.activeIcon = icon;
  
                  if (typeof toolbarIconHandlers[name] !== "undefined") {
                      $.proxy(toolbarIconHandlers[name], _this)(cm);
                  } else {
                      if (typeof settings.toolbarHandlers[name] !== "undefined") {
                          $.proxy(settings.toolbarHandlers[name], _this)(cm, icon, cursor, selection);
                      }
                  }
  
                  if (name !== "link" && name !== "reference-link" && name !== "image" && name !== "code-block" &&
                      name !== "preformatted-text" && name !== "watch" && name !== "preview" && name !== "search" && name !== "fullscreen" && name !== "info") {
                      cm.focus();
                  }
  
                  return false;
  
              });
  
              return this;
          },
  
          /**
           * 动态创建对话框
           * Creating custom dialogs
           *
           * @param   {Object} options  配置项键值对 Key/Value
           * @returns {dialog}          返回创建的dialog的jQuery实例对象
           */
  
          createDialog: function(options) {
              return $.proxy(editormd.createDialog, this)(options);
          },
  
          /**
           * 创建关于Editor.md的对话框
           * Create about Editor.md dialog
           *
           * @returns {editormd}  返回editormd的实例对象
           */
  
          createInfoDialog: function() {
              var _this = this;
              var editor = this.editor;
              var classPrefix = this.classPrefix;
  
              var infoDialogHTML = [
                  "<div class=\"" + classPrefix + "dialog " + classPrefix + "dialog-info\" style=\"\">",
                  "<div class=\"" + classPrefix + "dialog-container\">",
                  "<h1><i class=\"editormd-logo editormd-logo-lg editormd-logo-color\"></i> " + editormd.title + "<small>v" + editormd.version + "</small></h1>",
                  "<p>" + this.lang.description + "</p>",
                  "<p style=\"margin: 10px 0 20px 0;\"><a href=\"" + editormd.homePage + "\" target=\"_blank\">" + editormd.homePage + " <i class=\"fa fa-external-link\"></i></a></p>",
                  "<p style=\"font-size: 0.85em;\">Copyright &copy; 2015 <a href=\"https://github.com/pandao\" target=\"_blank\" class=\"hover-link\">Pandao</a>, The <a href=\"https://github.com/pandao/editor.md/blob/master/LICENSE\" target=\"_blank\" class=\"hover-link\">MIT</a> License.</p>",
                  "</div>",
                  "<a href=\"javascript:;\" class=\"fa fa-close " + classPrefix + "dialog-close\"></a>",
                  "</div>"
              ].join("\n");
  
              editor.append(infoDialogHTML);
  
              var infoDialog = this.infoDialog = editor.children("." + classPrefix + "dialog-info");
  
              infoDialog.find("." + classPrefix + "dialog-close").bind(editormd.mouseOrTouch("click", "touchend"), function() {
                  _this.hideInfoDialog();
              });
  
              infoDialog.css("border", (editormd.isIE8) ? "1px solid #ddd" : "").css("z-index", editormd.dialogZindex).show();
  
              this.infoDialogPosition();
  
              return this;
          },
  
          /**
           * 关于Editor.md对话居中定位
           * Editor.md dialog position handle
           *
           * @returns {editormd}  返回editormd的实例对象
           */
  
          infoDialogPosition: function() {
              var infoDialog = this.infoDialog;
  
              var _infoDialogPosition = function() {
                  infoDialog.css({
                      top: ($(window).height() - infoDialog.height()) / 2 + "px",
                      left: ($(window).width() - infoDialog.width()) / 2 + "px"
                  });
              };
  
              _infoDialogPosition();
  
              $(window).resize(_infoDialogPosition);
  
              return this;
          },
  
          /**
           * 显示关于Editor.md
           * Display about Editor.md dialog
           *
           * @returns {editormd}  返回editormd的实例对象
           */
  
          showInfoDialog: function() {
  
              $("html,body").css("overflow-x", "hidden");
  
              var _this = this;
              var editor = this.editor;
              var settings = this.settings;
              var infoDialog = this.infoDialog = editor.children("." + this.classPrefix + "dialog-info");
  
              if (infoDialog.length < 1) {
                  this.createInfoDialog();
              }
  
              this.lockScreen(true);
  
              this.mask.css({
                  opacity: settings.dialogMaskOpacity,
                  backgroundColor: settings.dialogMaskBgColor
              }).show();
  
              infoDialog.css("z-index", editormd.dialogZindex).show();
  
              this.infoDialogPosition();
  
              return this;
          },
  
          /**
           * 隐藏关于Editor.md
           * Hide about Editor.md dialog
           *
           * @returns {editormd}  返回editormd的实例对象
           */
  
          hideInfoDialog: function() {
              $("html,body").css("overflow-x", "");
              this.infoDialog.hide();
              this.mask.hide();
              this.lockScreen(false);
  
              return this;
          },
  
          /**
           * 锁屏
           * lock screen
           *
           * @param   {Boolean}    lock    Boolean 布尔值，是否锁屏
           * @returns {editormd}           返回editormd的实例对象
           */
  
          lockScreen: function(lock) {
              editormd.lockScreen(lock);
              this.resize();
  
              return this;
          },
  
          /**
           * 编辑器界面重建，用于动态语言包或模块加载等
           * Recreate editor
           *
           * @returns {editormd}  返回editormd的实例对象
           */
  
          recreate: function() {
              var _this = this;
              var editor = this.editor;
              var settings = this.settings;
  
              this.codeMirror.remove();
  
              this.setCodeMirror();
  
              if (!settings.readOnly) {
                  if (editor.find(".editormd-dialog").length > 0) {
                      editor.find(".editormd-dialog").remove();
                  }
  
                  if (settings.toolbar) {
                      this.getToolbarHandles();
                      this.setToolbar();
                  }
              }
  
              this.loadedDisplay(true);
  
              return this;
          },
  
          /**
           * 高亮预览HTML的pre代码部分
           * highlight of preview codes
           *
           * @returns {editormd}             返回editormd的实例对象
           */
  
          previewCodeHighlight: function() {
              var settings = this.settings;
              var previewContainer = this.previewContainer;
  
              if (settings.previewCodeHighlight) {
                  previewContainer.find("pre").addClass("prettyprint linenums");
  
                  if (typeof prettyPrint !== "undefined") {
                      prettyPrint();
                  }
              }
  
              return this;
          },
  
          /**
           * 解析TeX(KaTeX)科学公式
           * TeX(KaTeX) Renderer
           *
           * @returns {editormd}             返回editormd的实例对象
           */
  
          katexRender: function() {
  
              if (timer === null) {
                  return this;
              }
  
              this.previewContainer.find("." + editormd.classNames.tex).each(function() {
                  var tex = $(this);
                  editormd.$katex.render(tex.text(), tex[0]);
  
                  tex.find(".katex").css("font-size", "1.6em");
              });
  
              return this;
          },
  
          /**
           * 解析和渲染流程图及时序图
           * FlowChart and SequenceDiagram Renderer
           *
           * @returns {editormd}             返回editormd的实例对象
           */
  
          flowChartAndSequenceDiagramRender: function() {
              var $this = this;
              var settings = this.settings;
              var previewContainer = this.previewContainer;
  
              if (editormd.isIE8) {
                  return this;
              }
  
              if (settings.flowChart) {
                  if (flowchartTimer === null) {
                      return this;
                  }
  
                  previewContainer.find(".flowchart").flowChart();
              }
  
              if (settings.sequenceDiagram) {
                  previewContainer.find(".sequence-diagram").sequenceDiagram({
                      theme: "simple"
                  });
              }
  
              var preview = $this.preview;
              var codeMirror = $this.codeMirror;
              var codeView = codeMirror.find(".CodeMirror-scroll");
  
              var height = codeView.height();
              var scrollTop = codeView.scrollTop();
              var percent = (scrollTop / codeView[0].scrollHeight);
              var tocHeight = 0;
  
              preview.find(".markdown-toc-list").each(function() {
                  tocHeight += $(this).height();
              });
  
              var tocMenuHeight = preview.find(".editormd-toc-menu").height();
              tocMenuHeight = (!tocMenuHeight) ? 0 : tocMenuHeight;
  
              if (scrollTop === 0) {
                  preview.scrollTop(0);
              } else if (scrollTop + height >= codeView[0].scrollHeight - 16) {
                  preview.scrollTop(preview[0].scrollHeight);
              } else {
                  preview.scrollTop((preview[0].scrollHeight + tocHeight + tocMenuHeight) * percent);
              }
  
              return this;
          },
  
          /**
           * 注册键盘快捷键处理
           * Register CodeMirror keyMaps (keyboard shortcuts).
           *
           * @param   {Object}    keyMap      KeyMap key/value {"(Ctrl/Shift/Alt)-Key" : function(){}}
           * @returns {editormd}              return this
           */
  
          registerKeyMaps: function(keyMap) {
  
              var _this = this;
              var cm = this.cm;
              var settings = this.settings;
              var toolbarHandlers = editormd.toolbarHandlers;
              var disabledKeyMaps = settings.disabledKeyMaps;
  
              keyMap = keyMap || null;
  
              if (keyMap) {
                  for (var i in keyMap) {
                      if ($.inArray(i, disabledKeyMaps) < 0) {
                          var map = {};
                          map[i] = keyMap[i];
  
                          cm.addKeyMap(keyMap);
                      }
                  }
              } else {
                  for (var k in editormd.keyMaps) {
                      var _keyMap = editormd.keyMaps[k];
                      var handle = (typeof _keyMap === "string") ? $.proxy(toolbarHandlers[_keyMap], _this) : $.proxy(_keyMap, _this);
  
                      if ($.inArray(k, ["F9", "F10", "F11"]) < 0 && $.inArray(k, disabledKeyMaps) < 0) {
                          var _map = {};
                          _map[k] = handle;
  
                          cm.addKeyMap(_map);
                      }
                  }
  
                  $(window).keydown(function(event) {
  
                      var keymaps = {
                          "120": "F9",
                          "121": "F10",
                          "122": "F11"
                      };
  
                      if ($.inArray(keymaps[event.keyCode], disabledKeyMaps) < 0) {
                          switch (event.keyCode) {
                              case 120:
                                  $.proxy(toolbarHandlers["watch"], _this)();
                                  return false;
                                  break;
  
                              case 121:
                                  $.proxy(toolbarHandlers["preview"], _this)();
                                  return false;
                                  break;
  
                              case 122:
                                  $.proxy(toolbarHandlers["fullscreen"], _this)();
                                  return false;
                                  break;
  
                              default:
                                  break;
                          }
                      }
                  });
              }
  
              return this;
          },
  
          /**
           * 绑定同步滚动
           *
           * @returns {editormd} return this
           */
  
          bindScrollEvent: function() {
  
              var _this = this;
              var preview = this.preview;
              var settings = this.settings;
              var codeMirror = this.codeMirror;
              var mouseOrTouch = editormd.mouseOrTouch;
  
              if (!settings.syncScrolling) {
                  return this;
              }
  
              var cmBindScroll = function() {
                  codeMirror.find(".CodeMirror-scroll").bind(mouseOrTouch("scroll", "touchmove"), function(event) {
                      var height = $(this).height();
                      var scrollTop = $(this).scrollTop();
                      var percent = (scrollTop / $(this)[0].scrollHeight);
  
                      var tocHeight = 0;
  
                      preview.find(".markdown-toc-list").each(function() {
                          tocHeight += $(this).height();
                      });
  
                      var tocMenuHeight = preview.find(".editormd-toc-menu").height();
                      tocMenuHeight = (!tocMenuHeight) ? 0 : tocMenuHeight;
  
                      if (scrollTop === 0) {
                          preview.scrollTop(0);
                      } else if (scrollTop + height >= $(this)[0].scrollHeight - 16) {
                          preview.scrollTop(preview[0].scrollHeight);
                      } else {
                          preview.scrollTop((preview[0].scrollHeight + tocHeight + tocMenuHeight) * percent);
                      }
  
                      $.proxy(settings.onscroll, _this)(event);
                  });
              };
  
              var cmUnbindScroll = function() {
                  codeMirror.find(".CodeMirror-scroll").unbind(mouseOrTouch("scroll", "touchmove"));
              };
  
              var previewBindScroll = function() {
  
                  preview.bind(mouseOrTouch("scroll", "touchmove"), function(event) {
                      var height = $(this).height();
                      var scrollTop = $(this).scrollTop();
                      var percent = (scrollTop / $(this)[0].scrollHeight);
                      var codeView = codeMirror.find(".CodeMirror-scroll");
  
                      if (scrollTop === 0) {
                          codeView.scrollTop(0);
                      } else if (scrollTop + height >= $(this)[0].scrollHeight) {
                          codeView.scrollTop(codeView[0].scrollHeight);
                      } else {
                          codeView.scrollTop(codeView[0].scrollHeight * percent);
                      }
  
                      $.proxy(settings.onpreviewscroll, _this)(event);
                  });
  
              };
  
              var previewUnbindScroll = function() {
                  preview.unbind(mouseOrTouch("scroll", "touchmove"));
              };
  
              codeMirror.bind({
                  mouseover: cmBindScroll,
                  mouseout: cmUnbindScroll,
                  touchstart: cmBindScroll,
                  touchend: cmUnbindScroll
              });
  
              if (settings.syncScrolling === "single") {
                  return this;
              }
  
              preview.bind({
                  mouseover: previewBindScroll,
                  mouseout: previewUnbindScroll,
                  touchstart: previewBindScroll,
                  touchend: previewUnbindScroll
              });
  
              return this;
          },
  
          bindChangeEvent: function() {
  
              var _this = this;
              var cm = this.cm;
              var settings = this.settings;
  
              if (!settings.syncScrolling) {
                  return this;
              }
  
              cm.on("change", function(_cm, changeObj) {
  
                  if (settings.watch) {
                      _this.previewContainer.css("padding", settings.autoHeight ? "20px 20px 50px 40px" : "20px");
                  }
  
                  timer = setTimeout(function() {
                      clearTimeout(timer);
                      _this.save();
                      timer = null;
                  }, settings.delay);
              });
  
              return this;
          },
  
          /**
           * 加载队列完成之后的显示处理
           * Display handle of the module queues loaded after.
           *
           * @param   {Boolean}   recreate   是否为重建编辑器
           * @returns {editormd}             返回editormd的实例对象
           */
  
          loadedDisplay: function(recreate) {
  
              recreate = recreate || false;
  
              var _this = this;
              var editor = this.editor;
              var preview = this.preview;
              var settings = this.settings;
  
              this.containerMask.hide();
  
              this.save();
  
              if (settings.watch) {
                  preview.show();
              }
  
              editor.data("oldWidth", editor.width()).data("oldHeight", editor.height()); // 为了兼容Zepto
  
              this.resize();
              this.registerKeyMaps();
  
              $(window).resize(function() {
                  _this.resize();
              });
  
              this.bindScrollEvent().bindChangeEvent();
  
              if (!recreate) {
                  $.proxy(settings.onload, this)();
              }
  
              this.state.loaded = true;
  
              return this;
          },
  
          /**
           * 设置编辑器的宽度
           * Set editor width
           *
           * @param   {Number|String} width  编辑器宽度值
           * @returns {editormd}             返回editormd的实例对象
           */
  
          width: function(width) {
  
              this.editor.css("width", (typeof width === "number") ? width + "px" : width);
              this.resize();
  
              return this;
          },
  
          /**
           * 设置编辑器的高度
           * Set editor height
           *
           * @param   {Number|String} height  编辑器高度值
           * @returns {editormd}              返回editormd的实例对象
           */
  
          height: function(height) {
  
              this.editor.css("height", (typeof height === "number") ? height + "px" : height);
              this.resize();
  
              return this;
          },
  
          /**
           * 调整编辑器的尺寸和布局
           * Resize editor layout
           *
           * @param   {Number|String} [width=null]  编辑器宽度值
           * @param   {Number|String} [height=null] 编辑器高度值
           * @returns {editormd}                    返回editormd的实例对象
           */
  
          resize: function(width, height) {
  
              width = width || null;
              height = height || null;
  
              var state = this.state;
              var editor = this.editor;
              var preview = this.preview;
              var toolbar = this.toolbar;
              var settings = this.settings;
              var codeMirror = this.codeMirror;
  
              if (width) {
                  editor.css("width", (typeof width === "number") ? width + "px" : width);
              }
  
              if (settings.autoHeight && !state.fullscreen && !state.preview) {
                  editor.css("height", "auto");
                  codeMirror.css("height", "auto");
              } else {
                  if (height) {
                      editor.css("height", (typeof height === "number") ? height + "px" : height);
                  }
  
                  if (state.fullscreen) {
                      editor.height($(window).height());
                  }
  
                  if (settings.toolbar && !settings.readOnly) {
                      codeMirror.css("margin-top", toolbar.height() + 1).height(editor.height() - toolbar.height());
                  } else {
                      codeMirror.css("margin-top", 0).height(editor.height());
                  }
              }
  
              if (settings.watch) {
                  codeMirror.width(editor.width() / 2);
                  preview.width((!state.preview) ? editor.width() / 2 : editor.width());
  
                  this.previewContainer.css("padding", settings.autoHeight ? "20px 20px 50px 40px" : "20px");
  
                  if (settings.toolbar && !settings.readOnly) {
                      preview.css("top", toolbar.height() + 1);
                  } else {
                      preview.css("top", 0);
                  }
  
                  if (settings.autoHeight && !state.fullscreen && !state.preview) {
                      preview.height("");
                  } else {
                      var previewHeight = (settings.toolbar && !settings.readOnly) ? editor.height() - toolbar.height() : editor.height();
  
                      preview.height(previewHeight);
                  }
              } else {
                  codeMirror.width(editor.width());
                  preview.hide();
              }
  
              if (state.loaded) {
                  $.proxy(settings.onresize, this)();
              }
  
              return this;
          },
  
          /**
           * 解析和保存Markdown代码
           * Parse & Saving Markdown source code
           *
           * @returns {editormd}     返回editormd的实例对象
           */
  
          save: function() {
  
              if (timer === null) {
                  return this;
              }
  
              var _this = this;
              var state = this.state;
              var settings = this.settings;
              var cm = this.cm;
              var cmValue = cm.getValue();
              var previewContainer = this.previewContainer;
  
              if (settings.mode !== "gfm" && settings.mode !== "markdown") {
                  this.markdownTextarea.val(cmValue);
  
                  return this;
              }
  
              var marked = editormd.$marked;
              var markdownToC = this.markdownToC = [];
              var rendererOptions = this.markedRendererOptions = {
                  toc: settings.toc,
                  tocm: settings.tocm,
                  tocStartLevel: settings.tocStartLevel,
                  pageBreak: settings.pageBreak,
                  taskList: settings.taskList,
                  emoji: settings.emoji,
                  tex: settings.tex,
                  atLink: settings.atLink, // for @link
                  emailLink: settings.emailLink, // for mail address auto link
                  flowChart: settings.flowChart,
                  sequenceDiagram: settings.sequenceDiagram,
                  previewCodeHighlight: settings.previewCodeHighlight,
              };
  
              var markedOptions = this.markedOptions = {
                  renderer: editormd.markedRenderer(markdownToC, rendererOptions),
                  gfm: true,
                  tables: true,
                  breaks: true,
                  pedantic: false,
                  sanitize: (settings.htmlDecode) ? false : true, // 关闭忽略HTML标签，即开启识别HTML标签，默认为false
                  smartLists: true,
                  smartypants: true
              };
  
              marked.setOptions(markedOptions);
  
              var newMarkdownDoc = editormd.$marked(cmValue, markedOptions);
  
              //console.info("cmValue", cmValue, newMarkdownDoc);
  
              newMarkdownDoc = editormd.filterHTMLTags(newMarkdownDoc, settings.htmlDecode);
  
              //console.error("cmValue", cmValue, newMarkdownDoc);
  
              this.markdownTextarea.text(cmValue);
  
              cm.save();
  
              if (settings.saveHTMLToTextarea) {
                  this.htmlTextarea.text(newMarkdownDoc);
              }
  
              if (settings.watch || (!settings.watch && state.preview)) {
                  previewContainer.html(newMarkdownDoc);
  
                  this.previewCodeHighlight();
  
                  if (settings.toc) {
                      var tocContainer = (settings.tocContainer === "") ? previewContainer : $(settings.tocContainer);
                      var tocMenu = tocContainer.find("." + this.classPrefix + "toc-menu");
  
                      tocContainer.attr("previewContainer", (settings.tocContainer === "") ? "true" : "false");
  
                      if (settings.tocContainer !== "" && tocMenu.length > 0) {
                          tocMenu.remove();
                      }
  
                      editormd.markdownToCRenderer(markdownToC, tocContainer, settings.tocDropdown, settings.tocStartLevel);
  
                      if (settings.tocDropdown || tocContainer.find("." + this.classPrefix + "toc-menu").length > 0) {
                          editormd.tocDropdownMenu(tocContainer, (settings.tocTitle !== "") ? settings.tocTitle : this.lang.tocTitle);
                      }
  
                      if (settings.tocContainer !== "") {
                          previewContainer.find(".markdown-toc").css("border", "none");
                      }
                  }
  
                  if (settings.tex) {
                      if (!editormd.kaTeXLoaded && settings.autoLoadModules) {
                          editormd.loadKaTeX(function() {
                              editormd.$katex = katex;
                              editormd.kaTeXLoaded = true;
                              _this.katexRender();
                          });
                      } else {
                          editormd.$katex = katex;
                          this.katexRender();
                      }
                  }
  
                  if (settings.flowChart || settings.sequenceDiagram) {
                      flowchartTimer = setTimeout(function() {
                          clearTimeout(flowchartTimer);
                          _this.flowChartAndSequenceDiagramRender();
                          flowchartTimer = null;
                      }, 10);
                  }
  
                  if (state.loaded) {
                      $.proxy(settings.onchange, this)();
                  }
              }
  
              return this;
          },
  
          /**
           * 聚焦光标位置
           * Focusing the cursor position
           *
           * @returns {editormd}         返回editormd的实例对象
           */
  
          focus: function() {
              this.cm.focus();
  
              return this;
          },
  
          /**
           * 设置光标的位置
           * Set cursor position
           *
           * @param   {Object}    cursor 要设置的光标位置键值对象，例：{line:1, ch:0}
           * @returns {editormd}         返回editormd的实例对象
           */
  
          setCursor: function(cursor) {
              this.cm.setCursor(cursor);
  
              return this;
          },
  
          /**
           * 获取当前光标的位置
           * Get the current position of the cursor
           *
           * @returns {Cursor}         返回一个光标Cursor对象
           */
  
          getCursor: function() {
              return this.cm.getCursor();
          },
  
          /**
           * 设置光标选中的范围
           * Set cursor selected ranges
           *
           * @param   {Object}    from   开始位置的光标键值对象，例：{line:1, ch:0}
           * @param   {Object}    to     结束位置的光标键值对象，例：{line:1, ch:0}
           * @returns {editormd}         返回editormd的实例对象
           */
  
          setSelection: function(from, to) {
  
              this.cm.setSelection(from, to);
  
              return this;
          },
  
          /**
           * 获取光标选中的文本
           * Get the texts from cursor selected
           *
           * @returns {String}         返回选中文本的字符串形式
           */
  
          getSelection: function() {
              return this.cm.getSelection();
          },
  
          /**
           * 设置光标选中的文本范围
           * Set the cursor selection ranges
           *
           * @param   {Array}    ranges  cursor selection ranges array
           * @returns {Array}            return this
           */
  
          setSelections: function(ranges) {
              this.cm.setSelections(ranges);
  
              return this;
          },
  
          /**
           * 获取光标选中的文本范围
           * Get the cursor selection ranges
           *
           * @returns {Array}         return selection ranges array
           */
  
          getSelections: function() {
              return this.cm.getSelections();
          },
  
          /**
           * 替换当前光标选中的文本或在当前光标处插入新字符
           * Replace the text at the current cursor selected or insert a new character at the current cursor position
           *
           * @param   {String}    value  要插入的字符值
           * @returns {editormd}         返回editormd的实例对象
           */
  
          replaceSelection: function(value) {
              this.cm.replaceSelection(value);
  
              return this;
          },
  
          /**
           * 在当前光标处插入新字符
           * Insert a new character at the current cursor position
           *
           * 同replaceSelection()方法
           * With the replaceSelection() method
           *
           * @param   {String}    value  要插入的字符值
           * @returns {editormd}         返回editormd的实例对象
           */
  
          insertValue: function(value) {
              this.replaceSelection(value);
  
              return this;
          },
  
          /**
           * 追加markdown
           * append Markdown to editor
           *
           * @param   {String}    md     要追加的markdown源文档
           * @returns {editormd}         返回editormd的实例对象
           */
  
          appendMarkdown: function(md) {
              var settings = this.settings;
              var cm = this.cm;
  
              cm.setValue(cm.getValue() + md);
  
              return this;
          },
  
          /**
           * 设置和传入编辑器的markdown源文档
           * Set Markdown source document
           *
           * @param   {String}    md     要传入的markdown源文档
           * @returns {editormd}         返回editormd的实例对象
           */
  
          setMarkdown: function(md) {
              this.cm.setValue(md || this.settings.markdown);
  
              return this;
          },
  
          /**
           * 获取编辑器的markdown源文档
           * Set Editor.md markdown/CodeMirror value
           *
           * @returns {editormd}         返回editormd的实例对象
           */
  
          getMarkdown: function() {
              return this.cm.getValue();
          },
  
          /**
           * 获取编辑器的源文档
           * Get CodeMirror value
           *
           * @returns {editormd}         返回editormd的实例对象
           */
  
          getValue: function() {
              return this.cm.getValue();
          },
  
          /**
           * 设置编辑器的源文档
           * Set CodeMirror value
           *
           * @param   {String}     value   set code/value/string/text
           * @returns {editormd}           返回editormd的实例对象
           */
  
          setValue: function(value) {
              this.cm.setValue(value);
  
              return this;
          },
  
          /**
           * 清空编辑器
           * Empty CodeMirror editor container
           *
           * @returns {editormd}         返回editormd的实例对象
           */
  
          clear: function() {
              this.cm.setValue("");
  
              return this;
          },
  
          /**
           * 获取解析后存放在Textarea的HTML源码
           * Get parsed html code from Textarea
           *
           * @returns {String}               返回HTML源码
           */
  
          getHTML: function() {
              if (!this.settings.saveHTMLToTextarea) {
                  alert("Error: settings.saveHTMLToTextarea == false");
  
                  return false;
              }
  
              return this.htmlTextarea.val();
          },
  
          /**
           * getHTML()的别名
           * getHTML (alias)
           *
           * @returns {String}           Return html code 返回HTML源码
           */
  
          getTextareaSavedHTML: function() {
              return this.getHTML();
          },
  
          /**
           * 获取预览窗口的HTML源码
           * Get html from preview container
           *
           * @returns {editormd}         返回editormd的实例对象
           */
  
          getPreviewedHTML: function() {
              if (!this.settings.watch) {
                  alert("Error: settings.watch == false");
  
                  return false;
              }
  
              return this.previewContainer.html();
          },
  
          /**
           * 开启实时预览
           * Enable real-time watching
           *
           * @returns {editormd}         返回editormd的实例对象
           */
  
          watch: function(callback) {
              var settings = this.settings;
  
              if ($.inArray(settings.mode, ["gfm", "markdown"]) < 0) {
                  return this;
              }
  
              this.state.watching = settings.watch = true;
              this.preview.show();
  
              if (this.toolbar) {
                  var watchIcon = settings.toolbarIconsClass.watch;
                  var unWatchIcon = settings.toolbarIconsClass.unwatch;
  
                  var icon = this.toolbar.find(".fa[name=watch]");
                  icon.parent().attr("title", settings.lang.toolbar.watch);
                  icon.removeClass(unWatchIcon).addClass(watchIcon);
              }
  
              this.codeMirror.css("border-right", "1px solid #ddd").width(this.editor.width() / 2);
  
              timer = 0;
  
              this.save().resize();
  
              if (!settings.onwatch) {
                  settings.onwatch = callback || function() {};
              }
  
              $.proxy(settings.onwatch, this)();
  
              return this;
          },
  
          /**
           * 关闭实时预览
           * Disable real-time watching
           *
           * @returns {editormd}         返回editormd的实例对象
           */
  
          unwatch: function(callback) {
              var settings = this.settings;
              this.state.watching = settings.watch = false;
              this.preview.hide();
  
              if (this.toolbar) {
                  var watchIcon = settings.toolbarIconsClass.watch;
                  var unWatchIcon = settings.toolbarIconsClass.unwatch;
  
                  var icon = this.toolbar.find(".fa[name=watch]");
                  icon.parent().attr("title", settings.lang.toolbar.unwatch);
                  icon.removeClass(watchIcon).addClass(unWatchIcon);
              }
  
              this.codeMirror.css("border-right", "none").width(this.editor.width());
  
              this.resize();
  
              if (!settings.onunwatch) {
                  settings.onunwatch = callback || function() {};
              }
  
              $.proxy(settings.onunwatch, this)();
  
              return this;
          },
  
          /**
           * 显示编辑器
           * Show editor
           *
           * @param   {Function} [callback=function()] 回调函数
           * @returns {editormd}                       返回editormd的实例对象
           */
  
          show: function(callback) {
              callback = callback || function() {};
  
              var _this = this;
              this.editor.show(0, function() {
                  $.proxy(callback, _this)();
              });
  
              return this;
          },
  
          /**
           * 隐藏编辑器
           * Hide editor
           *
           * @param   {Function} [callback=function()] 回调函数
           * @returns {editormd}                       返回editormd的实例对象
           */
  
          hide: function(callback) {
              callback = callback || function() {};
  
              var _this = this;
              this.editor.hide(0, function() {
                  $.proxy(callback, _this)();
              });
  
              return this;
          },
  
          /**
           * 隐藏编辑器部分，只预览HTML
           * Enter preview html state
           *
           * @returns {editormd}         返回editormd的实例对象
           */
  
          previewing: function() {
  
              var _this = this;
              var editor = this.editor;
              var preview = this.preview;
              var toolbar = this.toolbar;
              var settings = this.settings;
              var codeMirror = this.codeMirror;
              var previewContainer = this.previewContainer;
  
              if ($.inArray(settings.mode, ["gfm", "markdown"]) < 0) {
                  return this;
              }
  
              if (settings.toolbar && toolbar) {
                  toolbar.toggle();
                  toolbar.find(".fa[name=preview]").toggleClass("active");
              }
  
              codeMirror.toggle();
  
              var escHandle = function(event) {
                  if (event.shiftKey && event.keyCode === 27) {
                      _this.previewed();
                  }
              };
  
              if (codeMirror.css("display") === "none") // 为了兼容Zepto，而不使用codeMirror.is(":hidden")
              {
                  this.state.preview = true;
  
                  if (this.state.fullscreen) {
                      preview.css("background", "#fff");
                  }
  
                  editor.find("." + this.classPrefix + "preview-close-btn").show().bind(editormd.mouseOrTouch("click", "touchend"), function() {
                      _this.previewed();
                  });
  
                  if (!settings.watch) {
                      this.save();
                  } else {
                      previewContainer.css("padding", "");
                  }
  
                  previewContainer.addClass(this.classPrefix + "preview-active");
  
                  preview.show().css({
                      position: "",
                      top: 0,
                      width: editor.width(),
                      height: (settings.autoHeight && !this.state.fullscreen) ? "auto" : editor.height()
                  });
  
                  if (this.state.loaded) {
                      $.proxy(settings.onpreviewing, this)();
                  }
  
                  $(window).bind("keyup", escHandle);
              } else {
                  $(window).unbind("keyup", escHandle);
                  this.previewed();
              }
          },
  
          /**
           * 显示编辑器部分，退出只预览HTML
           * Exit preview html state
           *
           * @returns {editormd}         返回editormd的实例对象
           */
  
          previewed: function() {
  
              var editor = this.editor;
              var preview = this.preview;
              var toolbar = this.toolbar;
              var settings = this.settings;
              var previewContainer = this.previewContainer;
              var previewCloseBtn = editor.find("." + this.classPrefix + "preview-close-btn");
  
              this.state.preview = false;
  
              this.codeMirror.show();
  
              if (settings.toolbar) {
                  toolbar.show();
              }
  
              preview[(settings.watch) ? "show" : "hide"]();
  
              previewCloseBtn.hide().unbind(editormd.mouseOrTouch("click", "touchend"));
  
              previewContainer.removeClass(this.classPrefix + "preview-active");
  
              if (settings.watch) {
                  previewContainer.css("padding", "20px");
              }
  
              preview.css({
                  background: null,
                  position: "absolute",
                  width: editor.width() / 2,
                  height: (settings.autoHeight && !this.state.fullscreen) ? "auto" : editor.height() - toolbar.height(),
                  top: (settings.toolbar) ? toolbar.height() : 0
              });
  
              if (this.state.loaded) {
                  $.proxy(settings.onpreviewed, this)();
              }
  
              return this;
          },
  
          /**
           * 编辑器全屏显示
           * Fullscreen show
           *
           * @returns {editormd}         返回editormd的实例对象
           */
  
          fullscreen: function() {
  
              var _this = this;
              var state = this.state;
              var editor = this.editor;
              var preview = this.preview;
              var toolbar = this.toolbar;
              var settings = this.settings;
              var fullscreenClass = this.classPrefix + "fullscreen";
  
              if (toolbar) {
                  toolbar.find(".fa[name=fullscreen]").parent().toggleClass("active");
              }
  
              var escHandle = function(event) {
                  if (!event.shiftKey && event.keyCode === 27) {
                      if (state.fullscreen) {
                          _this.fullscreenExit();
                      }
                  }
              };
  
              if (!editor.hasClass(fullscreenClass)) {
                  state.fullscreen = true;
  
                  $("html,body").css("overflow", "hidden");
  
                  editor.css({
                      width: $(window).width(),
                      height: $(window).height()
                  }).addClass(fullscreenClass);
  
                  this.resize();
  
                  $.proxy(settings.onfullscreen, this)();
  
                  $(window).bind("keyup", escHandle);
              } else {
                  $(window).unbind("keyup", escHandle);
                  this.fullscreenExit();
              }
  
              return this;
          },
  
          /**
           * 编辑器退出全屏显示
           * Exit fullscreen state
           *
           * @returns {editormd}         返回editormd的实例对象
           */
  
          fullscreenExit: function() {
  
              var editor = this.editor;
              var settings = this.settings;
              var toolbar = this.toolbar;
              var fullscreenClass = this.classPrefix + "fullscreen";
  
              this.state.fullscreen = false;
  
              if (toolbar) {
                  toolbar.find(".fa[name=fullscreen]").parent().removeClass("active");
              }
  
              $("html,body").css("overflow", "");
  
              editor.css({
                  width: editor.data("oldWidth"),
                  height: editor.data("oldHeight")
              }).removeClass(fullscreenClass);
  
              this.resize();
  
              $.proxy(settings.onfullscreenExit, this)();
  
              return this;
          },
  
          /**
           * 加载并执行插件
           * Load and execute the plugin
           *
           * @param   {String}     name    plugin name / function name
           * @param   {String}     path    plugin load path
           * @returns {editormd}           返回editormd的实例对象
           */
  
          executePlugin: function(name, path) {
  
              var _this = this;
              var cm = this.cm;
              var settings = this.settings;
  
              path = settings.pluginPath + path;
  
              if (typeof define === "function") {
                  if (typeof this[name] === "undefined") {
                      alert("Error: " + name + " plugin is not found, you are not load this plugin.");
  
                      return this;
                  }
  
                  this[name](cm);
  
                  return this;
              }
  
              if ($.inArray(path, editormd.loadFiles.plugin) < 0) {
                  editormd.loadPlugin(path, function() {
                      editormd.loadPlugins[name] = _this[name];
                      _this[name](cm);
                  });
              } else {
                  $.proxy(editormd.loadPlugins[name], this)(cm);
              }
  
              return this;
          },
  
          /**
           * 搜索替换
           * Search & replace
           *
           * @param   {String}     command    CodeMirror serach commands, "find, fintNext, fintPrev, clearSearch, replace, replaceAll"
           * @returns {editormd}              return this
           */
  
          search: function(command) {
              var settings = this.settings;
  
              if (!settings.searchReplace) {
                  alert("Error: settings.searchReplace == false");
                  return this;
              }
  
              if (!settings.readOnly) {
                  this.cm.execCommand(command || "find");
              }
  
              return this;
          },
  
          searchReplace: function() {
              this.search("replace");
  
              return this;
          },
  
          searchReplaceAll: function() {
              this.search("replaceAll");
  
              return this;
          }
      };
  
      editormd.fn.init.prototype = editormd.fn;
  
      /**
       * 锁屏
       * lock screen when dialog opening
       *
       * @returns {void}
       */
  
      editormd.dialogLockScreen = function() {
          var settings = this.settings || {
              dialogLockScreen: true
          };
  
          if (settings.dialogLockScreen) {
              $("html,body").css("overflow", "hidden");
              this.resize();
          }
      };
  
      /**
       * 显示透明背景层
       * Display mask layer when dialog opening
       *
       * @param   {Object}     dialog    dialog jQuery object
       * @returns {void}
       */
  
      editormd.dialogShowMask = function(dialog) {
          var editor = this.editor;
          var settings = this.settings || {
              dialogShowMask: true
          };
  
          dialog.css({
              top: ($(window).height() - dialog.height()) / 2 + "px",
              left: ($(window).width() - dialog.width()) / 2 + "px"
          });
  
          if (settings.dialogShowMask) {
              editor.children("." + this.classPrefix + "mask").css("z-index", parseInt(dialog.css("z-index")) - 1).show();
          }
      };
  
      editormd.toolbarHandlers = {
          undo: function() {
              this.cm.undo();
          },
  
          redo: function() {
              this.cm.redo();
          },
  
          bold: function() {
              var cm = this.cm;
              var cursor = cm.getCursor();
              var selection = cm.getSelection();
  
              cm.replaceSelection("**" + selection + "**");
  
              if (selection === "") {
                  cm.setCursor(cursor.line, cursor.ch + 2);
              }
          },
  
          del: function() {
              var cm = this.cm;
              var cursor = cm.getCursor();
              var selection = cm.getSelection();
  
              cm.replaceSelection("~~" + selection + "~~");
  
              if (selection === "") {
                  cm.setCursor(cursor.line, cursor.ch + 2);
              }
          },
  
          italic: function() {
              var cm = this.cm;
              var cursor = cm.getCursor();
              var selection = cm.getSelection();
  
              cm.replaceSelection("*" + selection + "*");
  
              if (selection === "") {
                  cm.setCursor(cursor.line, cursor.ch + 1);
              }
          },
  
          quote: function() {
              var cm = this.cm;
              var cursor = cm.getCursor();
              var selection = cm.getSelection();
  
              if (cursor.ch !== 0) {
                  cm.setCursor(cursor.line, 0);
                  cm.replaceSelection("> " + selection);
                  cm.setCursor(cursor.line, cursor.ch + 2);
              } else {
                  cm.replaceSelection("> " + selection);
              }
  
              //cm.replaceSelection("> " + selection);
              //cm.setCursor(cursor.line, (selection === "") ? cursor.ch + 2 : cursor.ch + selection.length + 2);
          },
  
          ucfirst: function() {
              var cm = this.cm;
              var selection = cm.getSelection();
              var selections = cm.listSelections();
  
              cm.replaceSelection(editormd.firstUpperCase(selection));
              cm.setSelections(selections);
          },
  
          ucwords: function() {
              var cm = this.cm;
              var selection = cm.getSelection();
              var selections = cm.listSelections();
  
              cm.replaceSelection(editormd.wordsFirstUpperCase(selection));
              cm.setSelections(selections);
          },
  
          uppercase: function() {
              var cm = this.cm;
              var selection = cm.getSelection();
              var selections = cm.listSelections();
  
              cm.replaceSelection(selection.toUpperCase());
              cm.setSelections(selections);
          },
  
          lowercase: function() {
              var cm = this.cm;
              var cursor = cm.getCursor();
              var selection = cm.getSelection();
              var selections = cm.listSelections();
  
              cm.replaceSelection(selection.toLowerCase());
              cm.setSelections(selections);
          },
  
          h1: function() {
              var cm = this.cm;
              var cursor = cm.getCursor();
              var selection = cm.getSelection();
  
              if (cursor.ch !== 0) {
                  cm.setCursor(cursor.line, 0);
                  cm.replaceSelection("# " + selection);
                  cm.setCursor(cursor.line, cursor.ch + 2);
              } else {
                  cm.replaceSelection("# " + selection);
              }
          },
  
          h2: function() {
              var cm = this.cm;
              var cursor = cm.getCursor();
              var selection = cm.getSelection();
  
              if (cursor.ch !== 0) {
                  cm.setCursor(cursor.line, 0);
                  cm.replaceSelection("## " + selection);
                  cm.setCursor(cursor.line, cursor.ch + 3);
              } else {
                  cm.replaceSelection("## " + selection);
              }
          },
  
          h3: function() {
              var cm = this.cm;
              var cursor = cm.getCursor();
              var selection = cm.getSelection();
  
              if (cursor.ch !== 0) {
                  cm.setCursor(cursor.line, 0);
                  cm.replaceSelection("### " + selection);
                  cm.setCursor(cursor.line, cursor.ch + 4);
              } else {
                  cm.replaceSelection("### " + selection);
              }
          },
  
          h4: function() {
              var cm = this.cm;
              var cursor = cm.getCursor();
              var selection = cm.getSelection();
  
              if (cursor.ch !== 0) {
                  cm.setCursor(cursor.line, 0);
                  cm.replaceSelection("#### " + selection);
                  cm.setCursor(cursor.line, cursor.ch + 5);
              } else {
                  cm.replaceSelection("#### " + selection);
              }
          },
  
          h5: function() {
              var cm = this.cm;
              var cursor = cm.getCursor();
              var selection = cm.getSelection();
  
              if (cursor.ch !== 0) {
                  cm.setCursor(cursor.line, 0);
                  cm.replaceSelection("##### " + selection);
                  cm.setCursor(cursor.line, cursor.ch + 6);
              } else {
                  cm.replaceSelection("##### " + selection);
              }
          },
  
          h6: function() {
              var cm = this.cm;
              var cursor = cm.getCursor();
              var selection = cm.getSelection();
  
              if (cursor.ch !== 0) {
                  cm.setCursor(cursor.line, 0);
                  cm.replaceSelection("###### " + selection);
                  cm.setCursor(cursor.line, cursor.ch + 7);
              } else {
                  cm.replaceSelection("###### " + selection);
              }
          },
  
          "list-ul": function() {
              var cm = this.cm;
              var cursor = cm.getCursor();
              var selection = cm.getSelection();
  
              if (selection === "") {
                  cm.replaceSelection("- " + selection);
              } else {
                  var selectionText = selection.split("\n");
  
                  for (var i = 0, len = selectionText.length; i < len; i++) {
                      selectionText[i] = (selectionText[i] === "") ? "" : "- " + selectionText[i];
                  }
  
                  cm.replaceSelection(selectionText.join("\n"));
              }
          },
  
          "list-ol": function() {
              var cm = this.cm;
              var cursor = cm.getCursor();
              var selection = cm.getSelection();
  
              if (selection === "") {
                  cm.replaceSelection("1. " + selection);
              } else {
                  var selectionText = selection.split("\n");
  
                  for (var i = 0, len = selectionText.length; i < len; i++) {
                      selectionText[i] = (selectionText[i] === "") ? "" : (i + 1) + ". " + selectionText[i];
                  }
  
                  cm.replaceSelection(selectionText.join("\n"));
              }
          },
  
          hr: function() {
              var cm = this.cm;
              var cursor = cm.getCursor();
              var selection = cm.getSelection();
  
              cm.replaceSelection(((cursor.ch !== 0) ? "\n\n" : "\n") + "------------\n\n");
          },
  
          tex: function() {
              if (!this.settings.tex) {
                  alert("settings.tex === false");
                  return this;
              }
  
              var cm = this.cm;
              var cursor = cm.getCursor();
              var selection = cm.getSelection();
  
              cm.replaceSelection("$$" + selection + "$$");
  
              if (selection === "") {
                  cm.setCursor(cursor.line, cursor.ch + 2);
              }
          },
  
          link: function() {
              this.executePlugin("linkDialog", "link-dialog/link-dialog");
          },
  
          "reference-link": function() {
              this.executePlugin("referenceLinkDialog", "reference-link-dialog/reference-link-dialog");
          },
  
          pagebreak: function() {
              if (!this.settings.pageBreak) {
                  alert("settings.pageBreak === false");
                  return this;
              }
  
              var cm = this.cm;
              var selection = cm.getSelection();
  
              cm.replaceSelection("\r\n[========]\r\n");
          },
  
          image: function() {
              this.executePlugin("imageDialog", "image-dialog/image-dialog");
          },
  
          code: function() {
              var cm = this.cm;
              var cursor = cm.getCursor();
              var selection = cm.getSelection();
  
              cm.replaceSelection("`" + selection + "`");
  
              if (selection === "") {
                  cm.setCursor(cursor.line, cursor.ch + 1);
              }
          },
  
          "code-block": function() {
              this.executePlugin("codeBlockDialog", "code-block-dialog/code-block-dialog");
          },
  
          "preformatted-text": function() {
              this.executePlugin("preformattedTextDialog", "preformatted-text-dialog/preformatted-text-dialog");
          },
  
          table: function() {
              this.executePlugin("tableDialog", "table-dialog/table-dialog");
          },
  
          datetime: function() {
              var cm = this.cm;
              var selection = cm.getSelection();
              var date = new Date();
              var langName = this.settings.lang.name;
              var datefmt = editormd.dateFormat() + " " + editormd.dateFormat((langName === "zh-cn" || langName === "zh-tw") ? "cn-week-day" : "week-day");
  
              cm.replaceSelection(datefmt);
          },
  
          emoji: function() {
              this.executePlugin("emojiDialog", "emoji-dialog/emoji-dialog");
          },
  
          "html-entities": function() {
              this.executePlugin("htmlEntitiesDialog", "html-entities-dialog/html-entities-dialog");
          },
  
          "goto-line": function() {
              this.executePlugin("gotoLineDialog", "goto-line-dialog/goto-line-dialog");
          },
  
          watch: function() {
              this[this.settings.watch ? "unwatch" : "watch"]();
          },
  
          preview: function() {
              this.previewing();
          },
  
          fullscreen: function() {
              this.fullscreen();
          },
  
          clear: function() {
              this.clear();
          },
  
          search: function() {
              this.search();
          },
  
          help: function() {
              this.executePlugin("helpDialog", "help-dialog/help-dialog");
          },
  
          info: function() {
              this.showInfoDialog();
          }
      };
  
      editormd.keyMaps = {
          "Ctrl-1": "h1",
          "Ctrl-2": "h2",
          "Ctrl-3": "h3",
          "Ctrl-4": "h4",
          "Ctrl-5": "h5",
          "Ctrl-6": "h6",
          "Ctrl-B": "bold", // if this is string ==  editormd.toolbarHandlers.xxxx
          "Ctrl-D": "datetime",
  
          "Ctrl-E": function() { // emoji
              var cm = this.cm;
              var cursor = cm.getCursor();
              var selection = cm.getSelection();
  
              if (!this.settings.emoji) {
                  alert("Error: settings.emoji == false");
                  return;
              }
  
              cm.replaceSelection(":" + selection + ":");
  
              if (selection === "") {
                  cm.setCursor(cursor.line, cursor.ch + 1);
              }
          },
          "Ctrl-Alt-G": "goto-line",
          "Ctrl-H": "hr",
          "Ctrl-I": "italic",
          "Ctrl-K": "code",
  
          "Ctrl-L": function() {
              var cm = this.cm;
              var cursor = cm.getCursor();
              var selection = cm.getSelection();
  
              var title = (selection === "") ? "" : " \"" + selection + "\"";
  
              cm.replaceSelection("[" + selection + "](" + title + ")");
  
              if (selection === "") {
                  cm.setCursor(cursor.line, cursor.ch + 1);
              }
          },
          "Ctrl-U": "list-ul",
  
          "Shift-Ctrl-A": function() {
              var cm = this.cm;
              var cursor = cm.getCursor();
              var selection = cm.getSelection();
  
              if (!this.settings.atLink) {
                  alert("Error: settings.atLink == false");
                  return;
              }
  
              cm.replaceSelection("@" + selection);
  
              if (selection === "") {
                  cm.setCursor(cursor.line, cursor.ch + 1);
              }
          },
  
          "Shift-Ctrl-C": "code",
          "Shift-Ctrl-Q": "quote",
          "Shift-Ctrl-S": "del",
          "Shift-Ctrl-K": "tex", // KaTeX
  
          "Shift-Alt-C": function() {
              var cm = this.cm;
              var cursor = cm.getCursor();
              var selection = cm.getSelection();
  
              cm.replaceSelection(["```", selection, "```"].join("\n"));
  
              if (selection === "") {
                  cm.setCursor(cursor.line, cursor.ch + 3);
              }
          },
  
          "Shift-Ctrl-Alt-C": "code-block",
          "Shift-Ctrl-H": "html-entities",
          "Shift-Alt-H": "help",
          "Shift-Ctrl-E": "emoji",
          "Shift-Ctrl-U": "uppercase",
          "Shift-Alt-U": "ucwords",
          "Shift-Ctrl-Alt-U": "ucfirst",
          "Shift-Alt-L": "lowercase",
  
          "Shift-Ctrl-I": function() {
              var cm = this.cm;
              var cursor = cm.getCursor();
              var selection = cm.getSelection();
  
              var title = (selection === "") ? "" : " \"" + selection + "\"";
  
              cm.replaceSelection("![" + selection + "](" + title + ")");
  
              if (selection === "") {
                  cm.setCursor(cursor.line, cursor.ch + 4);
              }
          },
  
          "Shift-Ctrl-Alt-I": "image",
          "Shift-Ctrl-L": "link",
          "Shift-Ctrl-O": "list-ol",
          "Shift-Ctrl-P": "preformatted-text",
          "Shift-Ctrl-T": "table",
          "Shift-Alt-P": "pagebreak",
          "F9": "watch",
          "F10": "preview",
          "F11": "fullscreen",
      };
  
      /**
       * 清除字符串两边的空格
       * Clear the space of strings both sides.
       *
       * @param   {String}    str            string
       * @returns {String}                   trimed string
       */
  
      var trim = function(str) {
          return (!String.prototype.trim) ? str.replace(/^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g, "") : str.trim();
      };
  
      editormd.trim = trim;
  
      /**
       * 所有单词首字母大写
       * Words first to uppercase
       *
       * @param   {String}    str            string
       * @returns {String}                   string
       */
  
      var ucwords = function(str) {
          return str.toLowerCase().replace(/\b(\w)|\s(\w)/g, function($1) {
              return $1.toUpperCase();
          });
      };
  
      editormd.ucwords = editormd.wordsFirstUpperCase = ucwords;
  
      /**
       * 字符串首字母大写
       * Only string first char to uppercase
       *
       * @param   {String}    str            string
       * @returns {String}                   string
       */
  
      var firstUpperCase = function(str) {
          return str.toLowerCase().replace(/\b(\w)/, function($1) {
              return $1.toUpperCase();
          });
      };
  
      var ucfirst = firstUpperCase;
  
      editormd.firstUpperCase = editormd.ucfirst = firstUpperCase;
  
      editormd.urls = {
          atLinkBase: "https://github.com/"
      };
  
      editormd.regexs = {
          atLink: /@(\w+)/g,
          email: /(\w+)@(\w+)\.(\w+)\.?(\w+)?/g,
          emailLink: /(mailto:)?([\w\.\_]+)@(\w+)\.(\w+)\.?(\w+)?/g,
          emoji: /:([\w\+-]+):/g,
          emojiDatetime: /(\d{2}:\d{2}:\d{2})/g,
          twemoji: /:(tw-([\w]+)-?(\w+)?):/g,
          fontAwesome: /:(fa-([\w]+)(-(\w+)){0,}):/g,
          editormdLogo: /:(editormd-logo-?(\w+)?):/g,
          pageBreak: /^\[[=]{8,}\]$/
      };
  
      // Emoji graphics files url path
      editormd.emoji = {
          path: "http://www.emoji-cheat-sheet.com/graphics/emojis/",
          ext: ".png"
      };
  
      // Twitter Emoji (Twemoji)  graphics files url path
      editormd.twemoji = {
          path: "http://twemoji.maxcdn.com/36x36/",
          ext: ".png"
      };
  
      /**
       * 自定义marked的解析器
       * Custom Marked renderer rules
       *
       * @param   {Array}    markdownToC     传入用于接收TOC的数组
       * @returns {Renderer} markedRenderer  返回marked的Renderer自定义对象
       */
  
      editormd.markedRenderer = function(markdownToC, options) {
          var defaults = {
              toc: true, // Table of contents
              tocm: false,
              tocStartLevel: 1, // Said from H1 to create ToC
              pageBreak: true,
              atLink: true, // for @link
              emailLink: true, // for mail address auto link
              taskList: false, // Enable Github Flavored Markdown task lists
              emoji: false, // :emoji: , Support Twemoji, fontAwesome, Editor.md logo emojis.
              tex: false, // TeX(LaTeX), based on KaTeX
              flowChart: false, // flowChart.js only support IE9+
              sequenceDiagram: false, // sequenceDiagram.js only support IE9+
          };
  
          var settings = $.extend(defaults, options || {});
          var marked = editormd.$marked;
          var markedRenderer = new marked.Renderer();
          markdownToC = markdownToC || [];
  
          var regexs = editormd.regexs;
          var atLinkReg = regexs.atLink;
          var emojiReg = regexs.emoji;
          var emailReg = regexs.email;
          var emailLinkReg = regexs.emailLink;
          var twemojiReg = regexs.twemoji;
          var faIconReg = regexs.fontAwesome;
          var editormdLogoReg = regexs.editormdLogo;
          var pageBreakReg = regexs.pageBreak;
  
          markedRenderer.emoji = function(text) {
  
              text = text.replace(editormd.regexs.emojiDatetime, function($1) {
                  return $1.replace(/:/g, "&#58;");
              });
  
              var matchs = text.match(emojiReg);
  
              if (!matchs || !settings.emoji) {
                  return text;
              }
  
              for (var i = 0, len = matchs.length; i < len; i++) {
                  if (matchs[i] === ":+1:") {
                      matchs[i] = ":\\+1:";
                  }
  
                  text = text.replace(new RegExp(matchs[i]), function($1, $2) {
                      var faMatchs = $1.match(faIconReg);
                      var name = $1.replace(/:/g, "");
  
                      if (faMatchs) {
                          for (var fa = 0, len1 = faMatchs.length; fa < len1; fa++) {
                              var faName = faMatchs[fa].replace(/:/g, "");
  
                              return "<i class=\"fa " + faName + " fa-emoji\" title=\"" + faName.replace("fa-", "") + "\"></i>";
                          }
                      } else {
                          var emdlogoMathcs = $1.match(editormdLogoReg);
                          var twemojiMatchs = $1.match(twemojiReg);
  
                          if (emdlogoMathcs) {
                              for (var x = 0, len2 = emdlogoMathcs.length; x < len2; x++) {
                                  var logoName = emdlogoMathcs[x].replace(/:/g, "");
                                  return "<i class=\"" + logoName + "\" title=\"Editor.md logo (" + logoName + ")\"></i>";
                              }
                          } else if (twemojiMatchs) {
                              for (var t = 0, len3 = twemojiMatchs.length; t < len3; t++) {
                                  var twe = twemojiMatchs[t].replace(/:/g, "").replace("tw-", "");
                                  return "<img src=\"" + editormd.twemoji.path + twe + editormd.twemoji.ext + "\" title=\"twemoji-" + twe + "\" alt=\"twemoji-" + twe + "\" class=\"emoji twemoji\" />";
                              }
                          } else {
                              var src = (name === "+1") ? "plus1" : name;
                              src = (src === "black_large_square") ? "black_square" : src;
                              src = (src === "moon") ? "waxing_gibbous_moon" : src;
  
                              return "<img src=\"" + editormd.emoji.path + src + editormd.emoji.ext + "\" class=\"emoji\" title=\"&#58;" + name + "&#58;\" alt=\"&#58;" + name + "&#58;\" />";
                          }
                      }
                  });
              }
  
              return text;
          };
  
          markedRenderer.atLink = function(text) {
  
              if (atLinkReg.test(text)) {
                  if (settings.atLink) {
                      text = text.replace(emailReg, function($1, $2, $3, $4) {
                          return $1.replace(/@/g, "_#_&#64;_#_");
                      });
  
                      text = text.replace(atLinkReg, function($1, $2) {
                          return "<a href=\"" + editormd.urls.atLinkBase + "" + $2 + "\" title=\"&#64;" + $2 + "\" class=\"at-link\">" + $1 + "</a>";
                      }).replace(/_#_&#64;_#_/g, "@");
                  }
  
                  if (settings.emailLink) {
                      text = text.replace(emailLinkReg, function($1, $2, $3, $4, $5) {
                          return (!$2 && $.inArray($5, "jpg|jpeg|png|gif|webp|ico|icon|pdf".split("|")) < 0) ? "<a href=\"mailto:" + $1 + "\">" + $1 + "</a>" : $1;
                      });
                  }
  
                  return text;
              }
  
              return text;
          };
  
          markedRenderer.link = function(href, title, text) {
  
              if (this.options.sanitize) {
                  try {
                      var prot = decodeURIComponent(unescape(href)).replace(/[^\w:]/g, "").toLowerCase();
                  } catch (e) {
                      return "";
                  }
  
                  if (prot.indexOf("javascript:") === 0) {
                      return "";
                  }
              }
  
              var out = "<a href=\"" + href + "\"";
  
              if (atLinkReg.test(title) || atLinkReg.test(text)) {
                  if (title) {
                      out += " title=\"" + title.replace(/@/g, "&#64;");
                  }
  
                  return out + "\">" + text.replace(/@/g, "&#64;") + "</a>";
              }
  
              if (title) {
                  out += " title=\"" + title + "\"";
              }
  
              out += ">" + text + "</a>";
  
              return out;
          };
  
          markedRenderer.heading = function(text, level, raw) {
  
              var linkText = text;
              var hasLinkReg = /\s*\<a\s*href\=\"(.*)\"\s*([^\>]*)\>(.*)\<\/a\>\s*/;
              var getLinkTextReg = /\s*\<a\s*([^\>]+)\>([^\>]*)\<\/a\>\s*/g;
  
              if (hasLinkReg.test(text)) {
                  var tempText = [];
                  text = text.split(/\<a\s*([^\>]+)\>([^\>]*)\<\/a\>/);
  
                  for (var i = 0, len = text.length; i < len; i++) {
                      tempText.push(text[i].replace(/\s*href\=\"(.*)\"\s*/g, ""));
                  }
  
                  text = tempText.join(" ");
              }
  
              text = trim(text);
  
              var escapedText = text.toLowerCase().replace(/[^\w]+/g, "-");
              var toc = {
                  text: text,
                  level: level,
                  slug: escapedText
              };
  
              var isChinese = /^[\u4e00-\u9fa5]+$/.test(text);
              var id = (isChinese) ? escape(text).replace(/\%/g, "") : text.toLowerCase().replace(/[^\w]+/g, "-");
  
              markdownToC.push(toc);
  
              var headingHTML = "<h" + level + " id=\"h" + level + "-" + this.options.headerPrefix + id + "\">";
  
              headingHTML += "<a name=\"" + text + "\" class=\"reference-link\"></a>";
              headingHTML += "<span class=\"header-link octicon octicon-link\"></span>";
              headingHTML += (hasLinkReg) ? this.atLink(this.emoji(linkText)) : this.atLink(this.emoji(text));
              headingHTML += "</h" + level + ">";
  
              return headingHTML;
          };
  
          markedRenderer.pageBreak = function(text) {
              if (pageBreakReg.test(text) && settings.pageBreak) {
                  text = "<hr style=\"page-break-after:always;\" class=\"page-break editormd-page-break\" />";
              }
  
              return text;
          };
  
          markedRenderer.paragraph = function(text) {
              var isTeXInline = /\$\$(.*)\$\$/g.test(text);
              var isTeXLine = /^\$\$(.*)\$\$$/.test(text);
              var isTeXAddClass = (isTeXLine) ? " class=\"" + editormd.classNames.tex + "\"" : "";
              var isToC = (settings.tocm) ? /^(\[TOC\]|\[TOCM\])$/.test(text) : /^\[TOC\]$/.test(text);
              var isToCMenu = /^\[TOCM\]$/.test(text);
  
              if (!isTeXLine && isTeXInline) {
                  text = text.replace(/(\$\$([^\$]*)\$\$)+/g, function($1, $2) {
                      return "<span class=\"" + editormd.classNames.tex + "\">" + $2.replace(/\$/g, "") + "</span>";
                  });
              } else {
                  text = (isTeXLine) ? text.replace(/\$/g, "") : text;
              }
  
              var tocHTML = "<div class=\"markdown-toc editormd-markdown-toc\">" + text + "</div>";
  
              return (isToC) ? ((isToCMenu) ? "<div class=\"editormd-toc-menu\">" + tocHTML + "</div><br/>" : tocHTML) : ((pageBreakReg.test(text)) ? this.pageBreak(text) : "<p" + isTeXAddClass + ">" + this.atLink(this.emoji(text)) + "</p>\n");
          };
  
          markedRenderer.code = function(code, lang, escaped) {
  
              if (lang === "seq" || lang === "sequence") {
                  return "<div class=\"sequence-diagram\">" + code + "</div>";
              } else if (lang === "flow") {
                  return "<div class=\"flowchart\">" + code + "</div>";
              } else if (lang === "math" || lang === "latex" || lang === "katex") {
                  return "<p class=\"" + editormd.classNames.tex + "\">" + code + "</p>";
              } else {
  
                  return marked.Renderer.prototype.code.apply(this, arguments);
              }
          };
  
          markedRenderer.tablecell = function(content, flags) {
              var type = (flags.header) ? "th" : "td";
              var tag = (flags.align) ? "<" + type + " style=\"text-align:" + flags.align + "\">" : "<" + type + ">";
  
              return tag + this.atLink(this.emoji(content)) + "</" + type + ">\n";
          };
  
          markedRenderer.listitem = function(text) {
              if (settings.taskList && /^\s*\[[x\s]\]\s*/.test(text)) {
                  text = text.replace(/^\s*\[\s\]\s*/, "<input type=\"checkbox\" class=\"task-list-item-checkbox\" /> ")
                      .replace(/^\s*\[x\]\s*/, "<input type=\"checkbox\" class=\"task-list-item-checkbox\" checked disabled /> ");
  
                  return "<li style=\"list-style: none;\">" + this.atLink(this.emoji(text)) + "</li>";
              } else {
                  return "<li>" + this.atLink(this.emoji(text)) + "</li>";
              }
          };
  
          return markedRenderer;
      };
  
      /**
       *
       * 生成TOC(Table of Contents)
       * Creating ToC (Table of Contents)
       *
       * @param   {Array}    toc             从marked获取的TOC数组列表
       * @param   {Element}  container       插入TOC的容器元素
       * @param   {Integer}  startLevel      Hx 起始层级
       * @returns {Object}   tocContainer    返回ToC列表容器层的jQuery对象元素
       */
  
      editormd.markdownToCRenderer = function(toc, container, tocDropdown, startLevel) {
  
          var html = "";
          var lastLevel = 0;
          var classPrefix = this.classPrefix;
  
          startLevel = startLevel || 1;
  
          for (var i = 0, len = toc.length; i < len; i++) {
              var text = toc[i].text;
              var level = toc[i].level;
  
              if (level < startLevel) {
                  continue;
              }
  
              if (level > lastLevel) {
                  html += "";
              } else if (level < lastLevel) {
                  html += (new Array(lastLevel - level + 2)).join("</ul></li>");
              } else {
                  html += "</ul></li>";
              }
  
              html += "<li><a class=\"toc-level-" + level + "\" href=\"#" + text + "\" level=\"" + level + "\">" + text + "</a><ul>";
              lastLevel = level;
          }
  
          var tocContainer = container.find(".markdown-toc");
  
          if ((tocContainer.length < 1 && container.attr("previewContainer") === "false")) {
              var tocHTML = "<div class=\"markdown-toc " + classPrefix + "markdown-toc\"></div>";
  
              tocHTML = (tocDropdown) ? "<div class=\"" + classPrefix + "toc-menu\">" + tocHTML + "</div>" : tocHTML;
  
              container.html(tocHTML);
  
              tocContainer = container.find(".markdown-toc");
          }
  
          if (tocDropdown) {
              tocContainer.wrap("<div class=\"" + classPrefix + "toc-menu\"></div><br/>");
          }
  
          tocContainer.html("<ul class=\"markdown-toc-list\"></ul>").children(".markdown-toc-list").html(html.replace(/\r?\n?\<ul\>\<\/ul\>/g, ""));
  
          return tocContainer;
      };
  
      /**
       *
       * 生成TOC下拉菜单
       * Creating ToC dropdown menu
       *
       * @param   {Object}   container       插入TOC的容器jQuery对象元素
       * @param   {String}   tocTitle        ToC title
       * @returns {Object}                   return toc-menu object
       */
  
      editormd.tocDropdownMenu = function(container, tocTitle) {
  
          tocTitle = tocTitle || "Table of Contents";
  
          var zindex = 400;
          var tocMenus = container.find("." + this.classPrefix + "toc-menu");
  
          tocMenus.each(function() {
              var $this = $(this);
              var toc = $this.children(".markdown-toc");
              var icon = "<i class=\"fa fa-angle-down\"></i>";
              var btn = "<a href=\"javascript:;\" class=\"toc-menu-btn\">" + icon + tocTitle + "</a>";
              var menu = toc.children("ul");
              var list = menu.find("li");
  
              toc.append(btn);
  
              list.first().before("<li><h1>" + tocTitle + " " + icon + "</h1></li>");
  
              $this.mouseover(function() {
                  menu.show();
  
                  list.each(function() {
                      var li = $(this);
                      var ul = li.children("ul");
  
                      if (ul.html() === "") {
                          ul.remove();
                      }
  
                      if (ul.length > 0 && ul.html() !== "") {
                          var firstA = li.children("a").first();
  
                          if (firstA.children(".fa").length < 1) {
                              firstA.append($(icon).css({
                                  float: "right",
                                  paddingTop: "4px"
                              }));
                          }
                      }
  
                      li.mouseover(function() {
                          ul.css("z-index", zindex).show();
                          zindex += 1;
                      }).mouseleave(function() {
                          ul.hide();
                      });
                  });
              }).mouseleave(function() {
                  menu.hide();
              });
          });
  
          return tocMenus;
      };
  
      /**
       * 简单地过滤指定的HTML标签
       * Filter custom html tags
       *
       * @param   {String}   html          要过滤HTML
       * @param   {String}   filters       要过滤的标签
       * @returns {String}   html          返回过滤的HTML
       */
  
      editormd.filterHTMLTags = function(html, filters) {
  
          if (typeof html !== "string") {
              html = new String(html);
          }
  
          if (typeof filters !== "string") {
              return html;
          }
  
          var expression = filters.split("|");
          var filterTags = expression[0].split(",");
          var attrs = expression[1];
  
          for (var i = 0, len = filterTags.length; i < len; i++) {
              var tag = filterTags[i];
  
              html = html.replace(new RegExp("\<\s*" + tag + "\s*([^\>]*)\>([^\>]*)\<\s*\/" + tag + "\s*\>", "igm"), "");
          }
  
          //return html;
  
          if (typeof attrs !== "undefined") {
              var htmlTagRegex = /\<(\w+)\s*([^\>]*)\>([^\>]*)\<\/(\w+)\>/ig;
  
              if (attrs === "*") {
                  html = html.replace(htmlTagRegex, function($1, $2, $3, $4, $5) {
                      return "<" + $2 + ">" + $4 + "</" + $5 + ">";
                  });
              } else if (attrs === "on*") {
                  html = html.replace(htmlTagRegex, function($1, $2, $3, $4, $5) {
                      var el = $("<" + $2 + ">" + $4 + "</" + $5 + ">");
                      var _attrs = $($1)[0].attributes;
                      var $attrs = {};
  
                      $.each(_attrs, function(i, e) {
                          if (e.nodeName !== '"') $attrs[e.nodeName] = e.nodeValue;
                      });
  
                      $.each($attrs, function(i) {
                          if (i.indexOf("on") === 0) {
                              delete $attrs[i];
                          }
                      });
  
                      el.attr($attrs);
  
                      var text = (typeof el[1] !== "undefined") ? $(el[1]).text() : "";
  
                      return el[0].outerHTML + text;
                  });
              } else {
                  html = html.replace(htmlTagRegex, function($1, $2, $3, $4) {
                      var filterAttrs = attrs.split(",");
                      var el = $($1);
                      el.html($4);
  
                      $.each(filterAttrs, function(i) {
                          el.attr(filterAttrs[i], null);
                      });
  
                      return el[0].outerHTML;
                  });
              }
          }
  
          return html;
      };
  
      /**
       * 将Markdown文档解析为HTML用于前台显示
       * Parse Markdown to HTML for Font-end preview.
       *
       * @param   {String}   id            用于显示HTML的对象ID
       * @param   {Object}   [options={}]  配置选项，可选
       * @returns {Object}   div           返回jQuery对象元素
       */
  
      editormd.markdownToHTML = function(id, options) {
          var defaults = {
              gfm: true,
              toc: true,
              tocm: false,
              tocStartLevel: 1,
              tocTitle: "目录",
              tocDropdown: false,
              tocContainer: "",
              markdown: "",
              markdownSourceCode: false,
              htmlDecode: false,
              autoLoadKaTeX: true,
              pageBreak: true,
              atLink: true, // for @link
              emailLink: true, // for mail address auto link
              tex: false,
              taskList: false, // Github Flavored Markdown task lists
              emoji: false,
              flowChart: false,
              sequenceDiagram: false,
              previewCodeHighlight: true
          };
  
          editormd.$marked = marked;
  
          var div = $("#" + id);
          var settings = div.settings = $.extend(true, defaults, options || {});
          var saveTo = div.find("textarea");
  
          if (saveTo.length < 1) {
              div.append("<textarea></textarea>");
              saveTo = div.find("textarea");
          }
  
          var markdownDoc = (settings.markdown === "") ? saveTo.val() : settings.markdown;
          var markdownToC = [];
  
          var rendererOptions = {
              toc: settings.toc,
              tocm: settings.tocm,
              tocStartLevel: settings.tocStartLevel,
              taskList: settings.taskList,
              emoji: settings.emoji,
              tex: settings.tex,
              pageBreak: settings.pageBreak,
              atLink: settings.atLink, // for @link
              emailLink: settings.emailLink, // for mail address auto link
              flowChart: settings.flowChart,
              sequenceDiagram: settings.sequenceDiagram,
              previewCodeHighlight: settings.previewCodeHighlight,
          };
  
          var markedOptions = {
              renderer: editormd.markedRenderer(markdownToC, rendererOptions),
              gfm: settings.gfm,
              tables: true,
              breaks: true,
              pedantic: false,
              sanitize: (settings.htmlDecode) ? false : true, // 是否忽略HTML标签，即是否开启HTML标签解析，为了安全性，默认不开启
              smartLists: true,
              smartypants: true
          };
  
          markdownDoc = new String(markdownDoc);
  
          var markdownParsed = marked(markdownDoc, markedOptions);
  
          markdownParsed = editormd.filterHTMLTags(markdownParsed, settings.htmlDecode);
  
          if (settings.markdownSourceCode) {
              saveTo.text(markdownDoc);
          } else {
              saveTo.remove();
          }
  
          div.addClass("markdown-body " + this.classPrefix + "html-preview").append(markdownParsed);
  
          var tocContainer = (settings.tocContainer !== "") ? $(settings.tocContainer) : div;
  
          if (settings.tocContainer !== "") {
              tocContainer.attr("previewContainer", false);
          }
  
          if (settings.toc) {
              div.tocContainer = this.markdownToCRenderer(markdownToC, tocContainer, settings.tocDropdown, settings.tocStartLevel);
  
              if (settings.tocDropdown || div.find("." + this.classPrefix + "toc-menu").length > 0) {
                  this.tocDropdownMenu(div, settings.tocTitle);
              }
  
              if (settings.tocContainer !== "") {
                  div.find(".editormd-toc-menu, .editormd-markdown-toc").remove();
              }
          }
  
          if (settings.previewCodeHighlight) {
              div.find("pre").addClass("prettyprint linenums");
              prettyPrint();
          }
  
          if (!editormd.isIE8) {
              if (settings.flowChart) {
                  div.find(".flowchart").flowChart();
              }
  
              if (settings.sequenceDiagram) {
                  div.find(".sequence-diagram").sequenceDiagram({
                      theme: "simple"
                  });
              }
          }
  
          if (settings.tex) {
              var katexHandle = function() {
                  div.find("." + editormd.classNames.tex).each(function() {
                      var tex = $(this);
                      katex.render(tex.html().replace(/&lt;/g, "<").replace(/&gt;/g, ">"), tex[0]);
                      tex.find(".katex").css("font-size", "1.6em");
                  });
              };
  
              if (settings.autoLoadKaTeX && !editormd.$katex && !editormd.kaTeXLoaded) {
                  this.loadKaTeX(function() {
                      editormd.$katex = katex;
                      editormd.kaTeXLoaded = true;
                      katexHandle();
                  });
              } else {
                  katexHandle();
              }
          }
  
          div.getMarkdown = function() {
              return saveTo.val();
          };
  
          return div;
      };
  
      // Editor.md themes, change toolbar themes etc.
      // added @1.5.0
      editormd.themes = ["default", "dark"];
  
      // Preview area themes
      // added @1.5.0
      editormd.previewThemes = ["default", "dark"];
  
      // CodeMirror / editor area themes
      // @1.5.0 rename -> editorThemes, old version -> themes
      editormd.editorThemes = [
          "default", "3024-day", "3024-night",
          "ambiance", "ambiance-mobile",
          "base16-dark", "base16-light", "blackboard",
          "cobalt",
          "eclipse", "elegant", "erlang-dark",
          "lesser-dark",
          "mbo", "mdn-like", "midnight", "monokai",
          "neat", "neo", "night",
          "paraiso-dark", "paraiso-light", "pastel-on-dark",
          "rubyblue",
          "solarized",
          "the-matrix", "tomorrow-night-eighties", "twilight",
          "vibrant-ink",
          "xq-dark", "xq-light"
      ];
  
      editormd.loadPlugins = {};
  
      editormd.loadFiles = {
          js: [],
          css: [],
          plugin: []
      };
  
      /**
       * 动态加载Editor.md插件，但不立即执行
       * Load editor.md plugins
       *
       * @param {String}   fileName              插件文件路径
       * @param {Function} [callback=function()] 加载成功后执行的回调函数
       * @param {String}   [into="head"]         嵌入页面的位置
       */
  
      editormd.loadPlugin = function(fileName, callback, into) {
          callback = callback || function() {};
  
          this.loadScript(fileName, function() {
              editormd.loadFiles.plugin.push(fileName);
              callback();
          }, into);
      };
  
      /**
       * 动态加载CSS文件的方法
       * Load css file method
       *
       * @param {String}   fileName              CSS文件名
       * @param {Function} [callback=function()] 加载成功后执行的回调函数
       * @param {String}   [into="head"]         嵌入页面的位置
       */
  
      editormd.loadCSS = function(fileName, callback, into) {
          into = into || "head";
          callback = callback || function() {};
  
          var css = document.createElement("link");
          css.type = "text/css";
          css.rel = "stylesheet";
          css.onload = css.onreadystatechange = function() {
              editormd.loadFiles.css.push(fileName);
              callback();
          };
  
          css.href = fileName + ".css";
  
          if (into === "head") {
              document.getElementsByTagName("head")[0].appendChild(css);
          } else {
              document.body.appendChild(css);
          }
      };
  
      editormd.isIE = (navigator.appName == "Microsoft Internet Explorer");
      editormd.isIE8 = (editormd.isIE && navigator.appVersion.match(/8./i) == "8.");
  
      /**
       * 动态加载JS文件的方法
       * Load javascript file method
       *
       * @param {String}   fileName              JS文件名
       * @param {Function} [callback=function()] 加载成功后执行的回调函数
       * @param {String}   [into="head"]         嵌入页面的位置
       */
  
      editormd.loadScript = function(fileName, callback, into) {
  
          into = into || "head";
          callback = callback || function() {};
  
          var script = null;
          script = document.createElement("script");
          script.id = fileName.replace(/[\./]+/g, "-");
          script.type = "text/javascript";
          script.src = fileName + ".js";
  
          if (editormd.isIE8) {
              script.onreadystatechange = function() {
                  if (script.readyState) {
                      if (script.readyState === "loaded" || script.readyState === "complete") {
                          script.onreadystatechange = null;
                          editormd.loadFiles.js.push(fileName);
                          callback();
                      }
                  }
              };
          } else {
              script.onload = function() {
                  editormd.loadFiles.js.push(fileName);
                  callback();
              };
          }
  
          if (into === "head") {
              document.getElementsByTagName("head")[0].appendChild(script);
          } else {
              document.body.appendChild(script);
          }
      };
  
      // 使用国外的CDN，加载速度有时会很慢，或者自定义URL
      // You can custom KaTeX load url.
      editormd.katexURL = {
          css: "//cdnjs.cloudflare.com/ajax/libs/KaTeX/0.3.0/katex.min",
          js: "//cdnjs.cloudflare.com/ajax/libs/KaTeX/0.3.0/katex.min"
      };
  
      editormd.kaTeXLoaded = false;
  
      /**
       * 加载KaTeX文件
       * load KaTeX files
       *
       * @param {Function} [callback=function()]  加载成功后执行的回调函数
       */
  
      editormd.loadKaTeX = function(callback) {
          editormd.loadCSS(editormd.katexURL.css, function() {
              editormd.loadScript(editormd.katexURL.js, callback || function() {});
          });
      };
  
      /**
       * 锁屏
       * lock screen
       *
       * @param   {Boolean}   lock   Boolean 布尔值，是否锁屏
       * @returns {void}
       */
  
      editormd.lockScreen = function(lock) {
          $("html,body").css("overflow", (lock) ? "hidden" : "");
      };
  
      /**
       * 动态创建对话框
       * Creating custom dialogs
       *
       * @param   {Object} options 配置项键值对 Key/Value
       * @returns {dialog} 返回创建的dialog的jQuery实例对象
       */
  
      editormd.createDialog = function(options) {
          var defaults = {
              name: "",
              width: 420,
              height: 240,
              title: "",
              drag: true,
              closed: true,
              content: "",
              mask: true,
              maskStyle: {
                  backgroundColor: "#fff",
                  opacity: 0.1
              },
              lockScreen: true,
              footer: true,
              buttons: false
          };
  
          options = $.extend(true, defaults, options);
  
          var $this = this;
          var editor = this.editor;
          var classPrefix = editormd.classPrefix;
          var guid = (new Date()).getTime();
          var dialogName = ((options.name === "") ? classPrefix + "dialog-" + guid : options.name);
          var mouseOrTouch = editormd.mouseOrTouch;
  
          var html = "<div class=\"" + classPrefix + "dialog " + dialogName + "\">";
  
          if (options.title !== "") {
              html += "<div class=\"" + classPrefix + "dialog-header\"" + ((options.drag) ? " style=\"cursor: move;\"" : "") + ">";
              html += "<strong class=\"" + classPrefix + "dialog-title\">" + options.title + "</strong>";
              html += "</div>";
          }
  
          if (options.closed) {
              html += "<a href=\"javascript:;\" class=\"fa fa-close " + classPrefix + "dialog-close\"></a>";
          }
  
          html += "<div class=\"" + classPrefix + "dialog-container\">" + options.content;
  
          if (options.footer || typeof options.footer === "string") {
              html += "<div class=\"" + classPrefix + "dialog-footer\">" + ((typeof options.footer === "boolean") ? "" : options.footer) + "</div>";
          }
  
          html += "</div>";
  
          html += "<div class=\"" + classPrefix + "dialog-mask " + classPrefix + "dialog-mask-bg\"></div>";
          html += "<div class=\"" + classPrefix + "dialog-mask " + classPrefix + "dialog-mask-con\"></div>";
          html += "</div>";
  
          editor.append(html);
  
          var dialog = editor.find("." + dialogName);
  
          dialog.lockScreen = function(lock) {
              if (options.lockScreen) {
                  $("html,body").css("overflow", (lock) ? "hidden" : "");
                  $this.resize();
              }
  
              return dialog;
          };
  
          dialog.showMask = function() {
              if (options.mask) {
                  editor.find("." + classPrefix + "mask").css(options.maskStyle).css("z-index", editormd.dialogZindex - 1).show();
              }
              return dialog;
          };
  
          dialog.hideMask = function() {
              if (options.mask) {
                  editor.find("." + classPrefix + "mask").hide();
              }
  
              return dialog;
          };
  
          dialog.loading = function(show) {
              var loading = dialog.find("." + classPrefix + "dialog-mask");
              loading[(show) ? "show" : "hide"]();
  
              return dialog;
          };
  
          dialog.lockScreen(true).showMask();
  
          dialog.show().css({
              zIndex: editormd.dialogZindex,
              border: (editormd.isIE8) ? "1px solid #ddd" : "",
              width: (typeof options.width === "number") ? options.width + "px" : options.width,
              height: (typeof options.height === "number") ? options.height + "px" : options.height
          });
  
          var dialogPosition = function() {
              dialog.css({
                  top: ($(window).height() - dialog.height()) / 2 + "px",
                  left: ($(window).width() - dialog.width()) / 2 + "px"
              });
          };
  
          dialogPosition();
  
          $(window).resize(dialogPosition);
  
          dialog.children("." + classPrefix + "dialog-close").bind(mouseOrTouch("click", "touchend"), function() {
              dialog.hide().lockScreen(false).hideMask();
          });
  
          if (typeof options.buttons === "object") {
              var footer = dialog.footer = dialog.find("." + classPrefix + "dialog-footer");
  
              for (var key in options.buttons) {
                  var btn = options.buttons[key];
                  var btnClassName = classPrefix + key + "-btn";
  
                  footer.append("<button class=\"" + classPrefix + "btn " + btnClassName + "\">" + btn[0] + "</button>");
                  btn[1] = $.proxy(btn[1], dialog);
                  footer.children("." + btnClassName).bind(mouseOrTouch("click", "touchend"), btn[1]);
              }
          }
  
          if (options.title !== "" && options.drag) {
              var posX, posY;
              var dialogHeader = dialog.children("." + classPrefix + "dialog-header");
  
              if (!options.mask) {
                  dialogHeader.bind(mouseOrTouch("click", "touchend"), function() {
                      editormd.dialogZindex += 2;
                      dialog.css("z-index", editormd.dialogZindex);
                  });
              }
  
              dialogHeader.mousedown(function(e) {
                  e = e || window.event; //IE
                  posX = e.clientX - parseInt(dialog[0].style.left);
                  posY = e.clientY - parseInt(dialog[0].style.top);
  
                  document.onmousemove = moveAction;
              });
  
              var userCanSelect = function(obj) {
                  obj.removeClass(classPrefix + "user-unselect").off("selectstart");
              };
  
              var userUnselect = function(obj) {
                  obj.addClass(classPrefix + "user-unselect").on("selectstart", function(event) { // selectstart for IE
                      return false;
                  });
              };
  
              var moveAction = function(e) {
                  e = e || window.event; //IE
  
                  var left, top, nowLeft = parseInt(dialog[0].style.left),
                      nowTop = parseInt(dialog[0].style.top);
  
                  if (nowLeft >= 0) {
                      if (nowLeft + dialog.width() <= $(window).width()) {
                          left = e.clientX - posX;
                      } else {
                          left = $(window).width() - dialog.width();
                          document.onmousemove = null;
                      }
                  } else {
                      left = 0;
                      document.onmousemove = null;
                  }
  
                  if (nowTop >= 0) {
                      top = e.clientY - posY;
                  } else {
                      top = 0;
                      document.onmousemove = null;
                  }
  
  
                  document.onselectstart = function() {
                      return false;
                  };
  
                  userUnselect($("body"));
                  userUnselect(dialog);
                  dialog[0].style.left = left + "px";
                  dialog[0].style.top = top + "px";
              };
  
              document.onmouseup = function() {
                  userCanSelect($("body"));
                  userCanSelect(dialog);
  
                  document.onselectstart = null;
                  document.onmousemove = null;
              };
  
              dialogHeader.touchDraggable = function() {
                  var offset = null;
                  var start = function(e) {
                      var orig = e.originalEvent;
                      var pos = $(this).parent().position();
  
                      offset = {
                          x: orig.changedTouches[0].pageX - pos.left,
                          y: orig.changedTouches[0].pageY - pos.top
                      };
                  };
  
                  var move = function(e) {
                      e.preventDefault();
                      var orig = e.originalEvent;
  
                      $(this).parent().css({
                          top: orig.changedTouches[0].pageY - offset.y,
                          left: orig.changedTouches[0].pageX - offset.x
                      });
                  };
  
                  this.bind("touchstart", start).bind("touchmove", move);
              };
  
              dialogHeader.touchDraggable();
          }
  
          editormd.dialogZindex += 2;
  
          return dialog;
      };
  
      /**
       * 鼠标和触摸事件的判断/选择方法
       * MouseEvent or TouchEvent type switch
       *
       * @param   {String} [mouseEventType="click"]    供选择的鼠标事件
       * @param   {String} [touchEventType="touchend"] 供选择的触摸事件
       * @returns {String} EventType                   返回事件类型名称
       */
  
      editormd.mouseOrTouch = function(mouseEventType, touchEventType) {
          mouseEventType = mouseEventType || "click";
          touchEventType = touchEventType || "touchend";
  
          var eventType = mouseEventType;
  
          try {
              document.createEvent("TouchEvent");
              eventType = touchEventType;
          } catch (e) {}
  
          return eventType;
      };
  
      /**
       * 日期时间的格式化方法
       * Datetime format method
       *
       * @param   {String}   [format=""]  日期时间的格式，类似PHP的格式
       * @returns {String}   datefmt      返回格式化后的日期时间字符串
       */
  
      editormd.dateFormat = function(format) {
          format = format || "";
  
          var addZero = function(d) {
              return (d < 10) ? "0" + d : d;
          };
  
          var date = new Date();
          var year = date.getFullYear();
          var year2 = year.toString().slice(2, 4);
          var month = addZero(date.getMonth() + 1);
          var day = addZero(date.getDate());
          var weekDay = date.getDay();
          var hour = addZero(date.getHours());
          var min = addZero(date.getMinutes());
          var second = addZero(date.getSeconds());
          var ms = addZero(date.getMilliseconds());
          var datefmt = "";
  
          var ymd = year2 + "-" + month + "-" + day;
          var fymd = year + "-" + month + "-" + day;
          var hms = hour + ":" + min + ":" + second;
  
          switch (format) {
              case "UNIX Time":
                  datefmt = date.getTime();
                  break;
  
              case "UTC":
                  datefmt = date.toUTCString();
                  break;
  
              case "yy":
                  datefmt = year2;
                  break;
  
              case "year":
              case "yyyy":
                  datefmt = year;
                  break;
  
              case "month":
              case "mm":
                  datefmt = month;
                  break;
  
              case "cn-week-day":
              case "cn-wd":
                  var cnWeekDays = ["日", "一", "二", "三", "四", "五", "六"];
                  datefmt = "星期" + cnWeekDays[weekDay];
                  break;
  
              case "week-day":
              case "wd":
                  var weekDays = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"];
                  datefmt = weekDays[weekDay];
                  break;
  
              case "day":
              case "dd":
                  datefmt = day;
                  break;
  
              case "hour":
              case "hh":
                  datefmt = hour;
                  break;
  
              case "min":
              case "ii":
                  datefmt = min;
                  break;
  
              case "second":
              case "ss":
                  datefmt = second;
                  break;
  
              case "ms":
                  datefmt = ms;
                  break;
  
              case "yy-mm-dd":
                  datefmt = ymd;
                  break;
  
              case "yyyy-mm-dd":
                  datefmt = fymd;
                  break;
  
              case "yyyy-mm-dd h:i:s ms":
              case "full + ms":
                  datefmt = fymd + " " + hms + " " + ms;
                  break;
  
              case "full":
              case "yyyy-mm-dd h:i:s":
              default:
                  datefmt = fymd + " " + hms;
                  break;
          }
  
          return datefmt;
      };
  
      return editormd;
  
  }));
  