3641 lines
102 KiB
JavaScript
3641 lines
102 KiB
JavaScript
;
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(function () {
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WMDEditor = function (options) {
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this.options = WMDEditor.util.extend({}, WMDEditor.defaults, options || {});
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wmdBase(this, this.options);
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this.startEditor();
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};
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window.WMDEditor = WMDEditor;
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WMDEditor.defaults = { // {{{
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version: 2.1,
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output_format: "markdown",
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lineLength: 40,
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button_bar: "wmd-button-bar",
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preview: "wmd-preview",
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output: "wmd-output",
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input: "wmd-input",
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// The text that appears on the upper part of the dialog box when
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// entering links.
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imageDialogText: "<p style='margin-top: 0px'><b>Enter the image URL.</b></p><p>You can also add a title, which will be displayed as a tool tip.</p><p>Example:<br />http://i.imgur.com/1cZl4.jpg</p>",
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linkDialogText: "<p style='margin-top: 0px'><b>Enter the web address.</b></p><p>You can also add a title, which will be displayed as a tool tip.</p><p>Example:<br />http://www.google.com/</p>",
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// The default text that appears in the dialog input box when entering
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// links.
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imageDefaultText: "http://",
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linkDefaultText: "http://",
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imageDirectory: "images/",
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// The link and title for the help button
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helpLink: "/wmd/markdownhelp.html",
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helpHoverTitle: "Markdown Syntax",
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helpTarget: "_blank",
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// Some intervals in ms. These can be adjusted to reduce the control's load.
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previewPollInterval: 500,
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pastePollInterval: 100,
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buttons: "bold italic link blockquote code image ol ul heading hr undo redo help",
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autoFormatting: {
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list: true,
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quote: true,
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code: true,
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},
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modifierKeys: { //replace this with null or false to disable key-combos
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bold: "b",
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italic: "i",
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link: "l",
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quote: "q",
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code: "k",
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image: "g",
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orderedList: "o",
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unorderedList: "u",
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heading: "h",
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horizontalRule: "r",
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redo: "y",
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undo: "z"
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},
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tagFilter: {
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enabled: false,
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allowedTags: /^(<\/?(b|blockquote|code|del|dd|dl|dt|em|h1|h2|h3|i|kbd|li|ol|p|pre|s|sup|sub|strong|strike|ul)>|<(br|hr)\s?\/?>)$/i,
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patternLink: /^(<a\shref=("|')(\#\d+|(https?:\/\/|ftp:\/\/|mailto:)[-A-Za-z0-9+&@#\/%?=~_|!:,.;\(\)]+)\2(\stitle="[^"<>]+")?\s?>|<\/a>)$/i,
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patternImage: /^(<img\ssrc="https?:(\/\/[-A-Za-z0-9+&@#\/%?=~_|!:,.;\(\)]+)"(\swidth="\d{1,3}")?(\sheight="\d{1,3}")?(\salt="[^"<>]*")?(\stitle="[^"<>]*")?\s?\/?>)$/i
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}
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}; // }}}
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WMDEditor.prototype = {
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getPanels: function () {
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return {
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buttonBar: (typeof this.options.button_bar == 'string') ? document.getElementById(this.options.button_bar) : this.options.button_bar,
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preview: (typeof this.options.preview == 'string') ? document.getElementById(this.options.preview) : this.options.preview,
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output: (typeof this.options.output == 'string') ? document.getElementById(this.options.output) : this.options.output,
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input: (typeof this.options.input == 'string') ? document.getElementById(this.options.input) : this.options.input
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};
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},
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startEditor: function () {
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this.panels = this.getPanels();
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this.previewMgr = new PreviewManager(this);
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edit = new this.editor(this.previewMgr.refresh);
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this.previewMgr.refresh(true);
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}
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};
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var util = { // {{{
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// Returns true if the DOM element is visible, false if it's hidden.
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// Checks if display is anything other than none.
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isVisible: function (elem) {
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// shamelessly copied from jQuery
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return elem.offsetWidth > 0 || elem.offsetHeight > 0;
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},
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// Adds a listener callback to a DOM element which is fired on a specified
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// event.
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addEvent: function (elem, event, listener) {
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if (elem.attachEvent) {
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// IE only. The "on" is mandatory.
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elem.attachEvent("on" + event, listener);
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}
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else {
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// Other browsers.
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elem.addEventListener(event, listener, false);
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}
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},
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// Removes a listener callback from a DOM element which is fired on a specified
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// event.
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removeEvent: function (elem, event, listener) {
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if (elem.detachEvent) {
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// IE only. The "on" is mandatory.
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elem.detachEvent("on" + event, listener);
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}
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else {
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// Other browsers.
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elem.removeEventListener(event, listener, false);
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}
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},
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// Converts \r\n and \r to \n.
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fixEolChars: function (text) {
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text = text.replace(/\r\n/g, "\n");
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text = text.replace(/\r/g, "\n");
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return text;
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},
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// Extends a regular expression. Returns a new RegExp
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// using pre + regex + post as the expression.
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// Used in a few functions where we have a base
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// expression and we want to pre- or append some
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// conditions to it (e.g. adding "$" to the end).
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// The flags are unchanged.
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//
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// regex is a RegExp, pre and post are strings.
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extendRegExp: function (regex, pre, post) {
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if (pre === null || pre === undefined) {
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pre = "";
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}
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if (post === null || post === undefined) {
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post = "";
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}
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var pattern = regex.toString();
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var flags = "";
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// Replace the flags with empty space and store them.
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// Technically, this can match incorrect flags like "gmm".
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var result = pattern.match(/\/([gim]*)$/);
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if (result === null) {
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flags = result[0];
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}
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else {
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flags = "";
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}
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// Remove the flags and slash delimiters from the regular expression.
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pattern = pattern.replace(/(^\/|\/[gim]*$)/g, "");
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pattern = pre + pattern + post;
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return new RegExp(pattern, flags);
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},
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// Sets the image for a button passed to the WMD editor.
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// Returns a new element with the image attached.
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// Adds several style properties to the image.
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//
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// XXX-ANAND: Is this used anywhere?
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createImage: function (img) {
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var imgPath = imageDirectory + img;
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var elem = document.createElement("img");
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elem.className = "wmd-button";
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elem.src = imgPath;
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return elem;
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},
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// This simulates a modal dialog box and asks for the URL when you
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// click the hyperlink or image buttons.
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//
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// text: The html for the input box.
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// defaultInputText: The default value that appears in the input box.
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// makeLinkMarkdown: The function which is executed when the prompt is dismissed, either via OK or Cancel
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prompt: function (text, defaultInputText, makeLinkMarkdown, promptType) {
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// These variables need to be declared at this level since they are used
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// in multiple functions.
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var dialog; // The dialog box.
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var background; // The background beind the dialog box.
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var input; // The text box where you enter the hyperlink.
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var titleInput; // The text box for the image's title text
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var newWinCheckbox; //The checkbox to choose if a link should be opened in a new window.
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if (defaultInputText === undefined) {
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defaultInputText = "";
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}
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// Used as a keydown event handler. Esc dismisses the prompt.
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// Key code 27 is ESC.
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var checkEscape = function (key) {
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var code = (key.charCode || key.keyCode);
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if (code === 27) {
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close(true);
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}
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};
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// Dismisses the hyperlink input box.
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// isCancel is true if we don't care about the input text.
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// isCancel is false if we are going to keep the text.
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var close = function (isCancel) {
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util.removeEvent(document.body, "keydown", checkEscape);
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var text = input.value+ (titleInput.value?' "'+titleInput.value+'"':'');
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if (isCancel) {
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text = null;
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}
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else {
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// Fixes common pasting errors.
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text = text.replace('http://http://', 'http://');
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text = text.replace('http://https://', 'https://');
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text = text.replace('http://ftp://', 'ftp://');
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if (promptType=='link' && newWinCheckbox.checked) text = '!'+text;
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}
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dialog.parentNode.removeChild(dialog);
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background.parentNode.removeChild(background);
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makeLinkMarkdown(text);
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return false;
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};
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// Creates the background behind the hyperlink text entry box.
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// Most of this has been moved to CSS but the div creation and
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// browser-specific hacks remain here.
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var createBackground = function () {
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background = document.createElement("div");
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background.className = "wmd-prompt-background";
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style = background.style;
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style.position = "absolute";
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style.top = "0";
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style.zIndex = "10000";
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// Some versions of Konqueror don't support transparent colors
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// so we make the whole window transparent.
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//
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// Is this necessary on modern konqueror browsers?
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if (browser.isKonqueror) {
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style.backgroundColor = "transparent";
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}
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else if (browser.isIE) {
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style.filter = "alpha(opacity=50)";
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}
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else {
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style.opacity = "0.5";
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}
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var pageSize = position.getPageSize();
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style.height = pageSize[1] + "px";
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if (browser.isIE) {
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style.left = document.documentElement.scrollLeft;
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style.width = document.documentElement.clientWidth;
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}
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else {
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style.left = "0";
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style.width = "100%";
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}
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document.body.appendChild(background);
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};
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// Create the text input box form/window.
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var createDialog = function () {
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// The main dialog box.
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dialog = document.createElement("div");
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dialog.className = "wmd-prompt-dialog";
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dialog.style.padding = "10px;";
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dialog.style.position = "fixed";
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dialog.style.width = "400px";
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dialog.style.zIndex = "10001";
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// The dialog text.
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var question = document.createElement("div");
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question.innerHTML = text;
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question.style.padding = "5px";
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dialog.appendChild(question);
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// The web form container for the text box and buttons.
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var form = document.createElement("form");
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form.onsubmit = function () {
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return close(false);
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};
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var style = form.style;
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style.padding = "0";
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style.margin = "0";
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style.cssFloat = "left";
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style.width = "100%";
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style.textAlign = "center";
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style.position = "relative";
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dialog.appendChild(form);
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var label = document.createElement("label");
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style = label.style;
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style.display = "block";
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style.width = "80%";
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style.marginLeft = style.marginRight = "auto";
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style.textAlign = "left";
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form.appendChild(label);
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label.appendChild(document.createTextNode(promptType+" URL:"));
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// The input text box
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input = document.createElement("input");
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input.type = "text";
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input.value = defaultInputText;
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style = input.style;
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style.display = "block";
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style.width = "100%";
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style.marginLeft = style.marginRight = "auto";
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label.appendChild(input);
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label = document.createElement("label");
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style = label.style;
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style.display = "block";
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style.width = "80%";
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style.marginLeft = style.marginRight = "auto";
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style.textAlign = "left";
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form.appendChild(label);
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label.appendChild(document.createTextNode(promptType+" Title (Hover Text):"));
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// The input text box
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titleInput = document.createElement("input");
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titleInput.type = "text";
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style = titleInput.style;
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style.display = "block";
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style.width = "100%";
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style.marginLeft = style.marginRight = "auto";
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label.appendChild(titleInput);
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if (promptType=='link') {
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label = document.createElement("label");
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style = label.style;
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style.display = "block";
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style.textAlign = "center";
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form.appendChild(label);
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newWinCheckbox = document.createElement("input");
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newWinCheckbox.type = 'checkbox';
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newWinCheckbox.value = '!';
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label.appendChild(newWinCheckbox);
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label.appendChild(document.createTextNode(" Have this link open in a new window"));
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}
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// The ok button
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var okButton = document.createElement("input");
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okButton.type = "button";
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okButton.onclick = function () {
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return close(false);
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};
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okButton.value = "OK";
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style = okButton.style;
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style.margin = "10px";
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style.display = "inline";
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style.width = "7em";
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// The cancel button
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var cancelButton = document.createElement("input");
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cancelButton.type = "button";
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cancelButton.onclick = function () {
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return close(true);
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};
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cancelButton.value = "Cancel";
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style = cancelButton.style;
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style.margin = "10px";
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style.display = "inline";
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style.width = "7em";
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// The order of these buttons is different on macs.
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if (/mac/.test(nav.platform.toLowerCase())) {
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form.appendChild(cancelButton);
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form.appendChild(okButton);
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}
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else {
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form.appendChild(okButton);
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form.appendChild(cancelButton);
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}
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util.addEvent(document.body, "keydown", checkEscape);
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dialog.style.top = "50%";
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dialog.style.left = "50%";
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dialog.style.display = "block";
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if (browser.isIE_5or6) {
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dialog.style.position = "absolute";
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dialog.style.top = document.documentElement.scrollTop + 200 + "px";
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dialog.style.left = "50%";
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}
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document.body.appendChild(dialog);
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// This has to be done AFTER adding the dialog to the form if you
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// want it to be centered.
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dialog.style.marginTop = -(position.getHeight(dialog) / 2) + "px";
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dialog.style.marginLeft = -(position.getWidth(dialog) / 2) + "px";
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};
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createBackground();
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// Why is this in a zero-length timeout?
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// Is it working around a browser bug?
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window.setTimeout(function () {
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createDialog();
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var defTextLen = defaultInputText.length;
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if (input.selectionStart !== undefined) {
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input.selectionStart = 0;
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input.selectionEnd = defTextLen;
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}
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else if (input.createTextRange) {
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var range = input.createTextRange();
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range.collapse(false);
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range.moveStart("character", -defTextLen);
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range.moveEnd("character", defTextLen);
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range.select();
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}
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input.focus();
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}, 0);
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},
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extend: function () {
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function _update(a, b) {
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for (var k in b) if (b.hasOwnProperty(k)){
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if (typeof a[k] === 'object' && typeof b[k] === 'object') _update(a[k], b[k]); //if property is an object or array, merge the contents instead of overwriting
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else a[k] = b[k];
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}
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return a;
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}
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var d = {};
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for (var i = 0; i < arguments.length; i++) {
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_update(d, arguments[i]);
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}
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return d;
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}
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}; // }}}
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var position = { // {{{
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// UNFINISHED
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// The assignment in the while loop makes jslint cranky.
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// I'll change it to a better loop later.
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getTop: function (elem, isInner) {
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var result = elem.offsetTop;
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if (!isInner) {
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while (elem = elem.offsetParent) {
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result += elem.offsetTop;
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}
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}
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return result;
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},
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getHeight: function (elem) {
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return elem.offsetHeight || elem.scrollHeight;
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},
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getWidth: function (elem) {
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return elem.offsetWidth || elem.scrollWidth;
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},
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getPageSize: function () {
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var scrollWidth, scrollHeight;
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var innerWidth, innerHeight;
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// It's not very clear which blocks work with which browsers.
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if (self.innerHeight && self.scrollMaxY) {
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scrollWidth = document.body.scrollWidth;
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scrollHeight = self.innerHeight + self.scrollMaxY;
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}
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else if (document.body.scrollHeight > document.body.offsetHeight) {
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scrollWidth = document.body.scrollWidth;
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scrollHeight = document.body.scrollHeight;
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}
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else {
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scrollWidth = document.body.offsetWidth;
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scrollHeight = document.body.offsetHeight;
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}
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if (self.innerHeight) {
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// Non-IE browser
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innerWidth = self.innerWidth;
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innerHeight = self.innerHeight;
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}
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else if (document.documentElement && document.documentElement.clientHeight) {
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// Some versions of IE (IE 6 w/ a DOCTYPE declaration)
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innerWidth = document.documentElement.clientWidth;
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innerHeight = document.documentElement.clientHeight;
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}
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else if (document.body) {
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// Other versions of IE
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innerWidth = document.body.clientWidth;
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innerHeight = document.body.clientHeight;
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}
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var maxWidth = Math.max(scrollWidth, innerWidth);
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var maxHeight = Math.max(scrollHeight, innerHeight);
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return [maxWidth, maxHeight, innerWidth, innerHeight];
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}
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}; // }}}
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// The input textarea state/contents.
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// This is used to implement undo/redo by the undo manager.
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|
var TextareaState = function (textarea, wmd) { // {{{
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// Aliases
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var stateObj = this;
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var inputArea = textarea;
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this.init = function () {
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if (!util.isVisible(inputArea)) {
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return;
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}
|
|
|
|
this.setInputAreaSelectionStartEnd();
|
|
this.scrollTop = inputArea.scrollTop;
|
|
if (!this.text && inputArea.selectionStart || inputArea.selectionStart === 0) {
|
|
this.text = inputArea.value;
|
|
}
|
|
|
|
};
|
|
|
|
// Sets the selected text in the input box after we've performed an
|
|
// operation.
|
|
this.setInputAreaSelection = function () {
|
|
|
|
if (!util.isVisible(inputArea)) {
|
|
return;
|
|
}
|
|
|
|
if (inputArea.selectionStart !== undefined && !browser.isOpera) {
|
|
|
|
inputArea.focus();
|
|
inputArea.selectionStart = stateObj.start;
|
|
inputArea.selectionEnd = stateObj.end;
|
|
inputArea.scrollTop = stateObj.scrollTop;
|
|
}
|
|
else if (document.selection) {
|
|
|
|
if (typeof(document.activeElement)!="unknown" && document.activeElement && document.activeElement !== inputArea) {
|
|
return;
|
|
}
|
|
|
|
inputArea.focus();
|
|
var range = inputArea.createTextRange();
|
|
range.moveStart("character", -inputArea.value.length);
|
|
range.moveEnd("character", -inputArea.value.length);
|
|
range.moveEnd("character", stateObj.end);
|
|
range.moveStart("character", stateObj.start);
|
|
range.select();
|
|
}
|
|
};
|
|
|
|
this.setInputAreaSelectionStartEnd = function () {
|
|
|
|
if (inputArea.selectionStart || inputArea.selectionStart === 0) {
|
|
|
|
stateObj.start = inputArea.selectionStart;
|
|
stateObj.end = inputArea.selectionEnd;
|
|
}
|
|
else if (document.selection) {
|
|
|
|
stateObj.text = util.fixEolChars(inputArea.value);
|
|
|
|
// IE loses the selection in the textarea when buttons are
|
|
// clicked. On IE we cache the selection and set a flag
|
|
// which we check for here.
|
|
var range;
|
|
if (wmd.ieRetardedClick && wmd.ieCachedRange) {
|
|
range = wmd.ieCachedRange;
|
|
wmd.ieRetardedClick = false;
|
|
}
|
|
else {
|
|
range = document.selection.createRange();
|
|
}
|
|
|
|
var fixedRange = util.fixEolChars(range.text);
|
|
var marker = "\x07";
|
|
var markedRange = marker + fixedRange + marker;
|
|
range.text = markedRange;
|
|
var inputText = util.fixEolChars(inputArea.value);
|
|
|
|
range.moveStart("character", -markedRange.length);
|
|
range.text = fixedRange;
|
|
|
|
stateObj.start = inputText.indexOf(marker);
|
|
stateObj.end = inputText.lastIndexOf(marker) - marker.length;
|
|
|
|
var len = stateObj.text.length - util.fixEolChars(inputArea.value).length;
|
|
|
|
if (len) {
|
|
range.moveStart("character", -fixedRange.length);
|
|
while (len--) {
|
|
fixedRange += "\n";
|
|
stateObj.end += 1;
|
|
}
|
|
range.text = fixedRange;
|
|
}
|
|
|
|
this.setInputAreaSelection();
|
|
}
|
|
};
|
|
|
|
// Restore this state into the input area.
|
|
this.restore = function () {
|
|
|
|
if (stateObj.text != undefined && stateObj.text != inputArea.value) {
|
|
inputArea.value = stateObj.text;
|
|
}
|
|
this.setInputAreaSelection();
|
|
inputArea.scrollTop = stateObj.scrollTop;
|
|
};
|
|
|
|
// Gets a collection of HTML chunks from the inptut textarea.
|
|
this.getChunks = function () {
|
|
|
|
var chunk = new Chunks();
|
|
|
|
chunk.before = util.fixEolChars(stateObj.text.substring(0, stateObj.start));
|
|
chunk.startTag = "";
|
|
chunk.selection = util.fixEolChars(stateObj.text.substring(stateObj.start, stateObj.end));
|
|
chunk.endTag = "";
|
|
chunk.after = util.fixEolChars(stateObj.text.substring(stateObj.end));
|
|
chunk.scrollTop = stateObj.scrollTop;
|
|
|
|
return chunk;
|
|
};
|
|
|
|
// Sets the TextareaState properties given a chunk of markdown.
|
|
this.setChunks = function (chunk) {
|
|
|
|
chunk.before = chunk.before + chunk.startTag;
|
|
chunk.after = chunk.endTag + chunk.after;
|
|
|
|
if (browser.isOpera) {
|
|
chunk.before = chunk.before.replace(/\n/g, "\r\n");
|
|
chunk.selection = chunk.selection.replace(/\n/g, "\r\n");
|
|
chunk.after = chunk.after.replace(/\n/g, "\r\n");
|
|
}
|
|
|
|
this.start = chunk.before.length;
|
|
this.end = chunk.before.length + chunk.selection.length;
|
|
this.text = chunk.before + chunk.selection + chunk.after;
|
|
this.scrollTop = chunk.scrollTop;
|
|
};
|
|
|
|
this.init();
|
|
}; // }}}
|
|
// Chunks {{{
|
|
// before: contains all the text in the input box BEFORE the selection.
|
|
// after: contains all the text in the input box AFTER the selection.
|
|
var Chunks = function () {};
|
|
|
|
// startRegex: a regular expression to find the start tag
|
|
// endRegex: a regular expresssion to find the end tag
|
|
Chunks.prototype.findTags = function (startRegex, endRegex) {
|
|
|
|
var chunkObj = this;
|
|
var regex;
|
|
|
|
if (startRegex) {
|
|
|
|
regex = util.extendRegExp(startRegex, "", "$");
|
|
|
|
this.before = this.before.replace(regex, function (match) {
|
|
chunkObj.startTag = chunkObj.startTag + match;
|
|
return "";
|
|
});
|
|
|
|
regex = util.extendRegExp(startRegex, "^", "");
|
|
|
|
this.selection = this.selection.replace(regex, function (match) {
|
|
chunkObj.startTag = chunkObj.startTag + match;
|
|
return "";
|
|
});
|
|
}
|
|
|
|
if (endRegex) {
|
|
|
|
regex = util.extendRegExp(endRegex, "", "$");
|
|
|
|
this.selection = this.selection.replace(regex, function (match) {
|
|
chunkObj.endTag = match + chunkObj.endTag;
|
|
return "";
|
|
});
|
|
|
|
regex = util.extendRegExp(endRegex, "^", "");
|
|
|
|
this.after = this.after.replace(regex, function (match) {
|
|
chunkObj.endTag = match + chunkObj.endTag;
|
|
return "";
|
|
});
|
|
}
|
|
};
|
|
|
|
// If remove is false, the whitespace is transferred
|
|
// to the before/after regions.
|
|
//
|
|
// If remove is true, the whitespace disappears.
|
|
Chunks.prototype.trimWhitespace = function (remove) {
|
|
|
|
this.selection = this.selection.replace(/^(\s*)/, "");
|
|
|
|
if (!remove) {
|
|
this.before += re.$1;
|
|
}
|
|
|
|
this.selection = this.selection.replace(/(\s*)$/, "");
|
|
|
|
if (!remove) {
|
|
this.after = re.$1 + this.after;
|
|
}
|
|
};
|
|
|
|
|
|
Chunks.prototype.addBlankLines = function (nLinesBefore, nLinesAfter, findExtraNewlines) {
|
|
|
|
if (nLinesBefore === undefined) {
|
|
nLinesBefore = 1;
|
|
}
|
|
|
|
if (nLinesAfter === undefined) {
|
|
nLinesAfter = 1;
|
|
}
|
|
|
|
nLinesBefore++;
|
|
nLinesAfter++;
|
|
|
|
var regexText;
|
|
var replacementText;
|
|
|
|
// New bug discovered in Chrome, which appears to be related to use of RegExp.$1
|
|
// Hack it to hold the match results. Sucks because we're double matching...
|
|
var match = /(^\n*)/.exec(this.selection);
|
|
|
|
this.selection = this.selection.replace(/(^\n*)/, "");
|
|
this.startTag = this.startTag + (match ? match[1] : "");
|
|
match = /(\n*$)/.exec(this.selection);
|
|
this.selection = this.selection.replace(/(\n*$)/, "");
|
|
this.endTag = this.endTag + (match ? match[1] : "");
|
|
match = /(^\n*)/.exec(this.startTag);
|
|
this.startTag = this.startTag.replace(/(^\n*)/, "");
|
|
this.before = this.before + (match ? match[1] : "");
|
|
match = /(\n*$)/.exec(this.endTag);
|
|
this.endTag = this.endTag.replace(/(\n*$)/, "");
|
|
this.after = this.after + (match ? match[1] : "");
|
|
|
|
if (this.before) {
|
|
|
|
regexText = replacementText = "";
|
|
|
|
while (nLinesBefore--) {
|
|
regexText += "\\n?";
|
|
replacementText += "\n";
|
|
}
|
|
|
|
if (findExtraNewlines) {
|
|
regexText = "\\n*";
|
|
}
|
|
this.before = this.before.replace(new re(regexText + "$", ""), replacementText);
|
|
}
|
|
|
|
if (this.after) {
|
|
|
|
regexText = replacementText = "";
|
|
|
|
while (nLinesAfter--) {
|
|
regexText += "\\n?";
|
|
replacementText += "\n";
|
|
}
|
|
if (findExtraNewlines) {
|
|
regexText = "\\n*";
|
|
}
|
|
|
|
this.after = this.after.replace(new re(regexText, ""), replacementText);
|
|
}
|
|
};
|
|
// }}} - END CHUNKS
|
|
// Watches the input textarea, polling at an interval and runs
|
|
// a callback function if anything has changed.
|
|
var InputPoller = function (textarea, callback, interval) { // {{{
|
|
var pollerObj = this;
|
|
var inputArea = textarea;
|
|
|
|
// Stored start, end and text. Used to see if there are changes to the input.
|
|
var lastStart;
|
|
var lastEnd;
|
|
var markdown;
|
|
|
|
var killHandle; // Used to cancel monitoring on destruction.
|
|
// Checks to see if anything has changed in the textarea.
|
|
// If so, it runs the callback.
|
|
this.tick = function () {
|
|
|
|
if (!util.isVisible(inputArea)) {
|
|
return;
|
|
}
|
|
|
|
// Update the selection start and end, text.
|
|
if (inputArea.selectionStart || inputArea.selectionStart === 0) {
|
|
var start = inputArea.selectionStart;
|
|
var end = inputArea.selectionEnd;
|
|
if (start != lastStart || end != lastEnd) {
|
|
lastStart = start;
|
|
lastEnd = end;
|
|
|
|
if (markdown != inputArea.value) {
|
|
markdown = inputArea.value;
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
return false;
|
|
};
|
|
|
|
|
|
var doTickCallback = function () {
|
|
|
|
if (!util.isVisible(inputArea)) {
|
|
return;
|
|
}
|
|
|
|
// If anything has changed, call the function.
|
|
if (pollerObj.tick()) {
|
|
callback();
|
|
}
|
|
};
|
|
|
|
// Set how often we poll the textarea for changes.
|
|
var assignInterval = function () {
|
|
killHandle = window.setInterval(doTickCallback, interval);
|
|
};
|
|
|
|
this.destroy = function () {
|
|
window.clearInterval(killHandle);
|
|
};
|
|
|
|
assignInterval();
|
|
}; // }}}
|
|
var PreviewManager = function (wmd) { // {{{
|
|
var managerObj = this;
|
|
var converter;
|
|
var poller;
|
|
var timeout;
|
|
var elapsedTime;
|
|
var oldInputText;
|
|
var htmlOut;
|
|
var maxDelay = 3000;
|
|
var startType = "delayed"; // The other legal value is "manual"
|
|
// Adds event listeners to elements and creates the input poller.
|
|
var setupEvents = function (inputElem, listener) {
|
|
|
|
util.addEvent(inputElem, "input", listener);
|
|
inputElem.onpaste = listener;
|
|
inputElem.ondrop = listener;
|
|
|
|
util.addEvent(inputElem, "keypress", listener);
|
|
util.addEvent(inputElem, "keydown", listener);
|
|
// previewPollInterval is set at the top of this file.
|
|
poller = new InputPoller(wmd.panels.input, listener, wmd.options.previewPollInterval);
|
|
};
|
|
|
|
var getDocScrollTop = function () {
|
|
|
|
var result = 0;
|
|
|
|
if (window.innerHeight) {
|
|
result = window.pageYOffset;
|
|
}
|
|
else if (document.documentElement && document.documentElement.scrollTop) {
|
|
result = document.documentElement.scrollTop;
|
|
}
|
|
else if (document.body) {
|
|
result = document.body.scrollTop;
|
|
}
|
|
|
|
return result;
|
|
};
|
|
|
|
var makePreviewHtml = function () {
|
|
|
|
// If there are no registered preview and output panels
|
|
// there is nothing to do.
|
|
if (!wmd.panels.preview && !wmd.panels.output) {
|
|
return;
|
|
}
|
|
|
|
var text = wmd.panels.input.value;
|
|
if (text && text == oldInputText) {
|
|
return; // Input text hasn't changed.
|
|
}
|
|
else {
|
|
oldInputText = text;
|
|
}
|
|
|
|
var prevTime = new Date().getTime();
|
|
|
|
if (!converter && wmd.showdown) {
|
|
converter = new wmd.showdown.converter();
|
|
}
|
|
|
|
if (converter) {
|
|
text = converter.makeHtml(text);
|
|
}
|
|
|
|
// Calculate the processing time of the HTML creation.
|
|
// It's used as the delay time in the event listener.
|
|
var currTime = new Date().getTime();
|
|
elapsedTime = currTime - prevTime;
|
|
|
|
pushPreviewHtml(text);
|
|
htmlOut = text;
|
|
};
|
|
|
|
// setTimeout is already used. Used as an event listener.
|
|
var applyTimeout = function () {
|
|
|
|
if (timeout) {
|
|
window.clearTimeout(timeout);
|
|
timeout = undefined;
|
|
}
|
|
|
|
if (startType !== "manual") {
|
|
|
|
var delay = 0;
|
|
|
|
if (startType === "delayed") {
|
|
delay = elapsedTime;
|
|
}
|
|
|
|
if (delay > maxDelay) {
|
|
delay = maxDelay;
|
|
}
|
|
timeout = window.setTimeout(makePreviewHtml, delay);
|
|
}
|
|
};
|
|
|
|
var getScaleFactor = function (panel) {
|
|
if (panel.scrollHeight <= panel.clientHeight) {
|
|
return 1;
|
|
}
|
|
return panel.scrollTop / (panel.scrollHeight - panel.clientHeight);
|
|
};
|
|
|
|
var setPanelScrollTops = function () {
|
|
|
|
if (wmd.panels.preview) {
|
|
wmd.panels.preview.scrollTop = (wmd.panels.preview.scrollHeight - wmd.panels.preview.clientHeight) * getScaleFactor(wmd.panels.preview);;
|
|
}
|
|
|
|
if (wmd.panels.output) {
|
|
wmd.panels.output.scrollTop = (wmd.panels.output.scrollHeight - wmd.panels.output.clientHeight) * getScaleFactor(wmd.panels.output);;
|
|
}
|
|
};
|
|
|
|
this.refresh = function (requiresRefresh) {
|
|
|
|
if (requiresRefresh) {
|
|
oldInputText = "";
|
|
makePreviewHtml();
|
|
}
|
|
else {
|
|
applyTimeout();
|
|
}
|
|
};
|
|
|
|
this.processingTime = function () {
|
|
return elapsedTime;
|
|
};
|
|
|
|
// The output HTML
|
|
this.output = function () {
|
|
return htmlOut;
|
|
};
|
|
|
|
// The mode can be "manual" or "delayed"
|
|
this.setUpdateMode = function (mode) {
|
|
startType = mode;
|
|
managerObj.refresh();
|
|
};
|
|
|
|
var isFirstTimeFilled = true;
|
|
|
|
var pushPreviewHtml = function (text) {
|
|
|
|
var emptyTop = position.getTop(wmd.panels.input) - getDocScrollTop();
|
|
|
|
// Send the encoded HTML to the output textarea/div.
|
|
if (wmd.panels.output) {
|
|
// The value property is only defined if the output is a textarea.
|
|
if (wmd.panels.output.value !== undefined) {
|
|
wmd.panels.output.value = text;
|
|
}
|
|
// Otherwise we are just replacing the text in a div.
|
|
// Send the HTML wrapped in <pre><code>
|
|
else {
|
|
var newText = text.replace(/&/g, "&");
|
|
newText = newText.replace(/</g, "<");
|
|
wmd.panels.output.innerHTML = "<pre><code>" + newText + "</code></pre>";
|
|
}
|
|
}
|
|
|
|
if (wmd.panels.preview) {
|
|
// original WMD code allowed javascript injection, like this:
|
|
// <img src="http://www.google.com/intl/en_ALL/images/srpr/logo1w.png" onload="alert('haha');"/>
|
|
// now, we first ensure elements (and attributes of IMG and A elements) are in a whitelist
|
|
// and if not in whitelist, replace with blanks in preview to prevent XSS attacks
|
|
// when editing malicious markdown
|
|
// code courtesy of https://github.com/polestarsoft/wmd/commit/e7a09c9170ea23e7e806425f46d7423af2a74641
|
|
if (wmd.options.tagFilter.enabled) {
|
|
text = text.replace(/<[^<>]*>?/gi, function (tag) {
|
|
return (tag.match(wmd.options.tagFilter.allowedTags) || tag.match(wmd.options.tagFilter.patternLink) || tag.match(wmd.options.tagFilter.patternImage)) ? tag : "";
|
|
});
|
|
}
|
|
wmd.panels.preview.innerHTML = text;
|
|
}
|
|
|
|
setPanelScrollTops();
|
|
|
|
if (isFirstTimeFilled) {
|
|
isFirstTimeFilled = false;
|
|
return;
|
|
}
|
|
|
|
var fullTop = position.getTop(wmd.panels.input) - getDocScrollTop();
|
|
|
|
if (browser.isIE) {
|
|
window.setTimeout(function () {
|
|
window.scrollBy(0, fullTop - emptyTop);
|
|
}, 0);
|
|
}
|
|
else {
|
|
window.scrollBy(0, fullTop - emptyTop);
|
|
}
|
|
};
|
|
|
|
var init = function () {
|
|
|
|
setupEvents(wmd.panels.input, applyTimeout);
|
|
makePreviewHtml();
|
|
|
|
if (wmd.panels.preview) {
|
|
wmd.panels.preview.scrollTop = 0;
|
|
}
|
|
if (wmd.panels.output) {
|
|
wmd.panels.output.scrollTop = 0;
|
|
}
|
|
};
|
|
|
|
this.destroy = function () {
|
|
if (poller) {
|
|
poller.destroy();
|
|
}
|
|
};
|
|
|
|
init();
|
|
}; // }}}
|
|
// Handles pushing and popping TextareaStates for undo/redo commands.
|
|
// I should rename the stack variables to list.
|
|
var UndoManager = function (wmd, textarea, pastePollInterval, callback) { // {{{
|
|
var undoObj = this;
|
|
var undoStack = []; // A stack of undo states
|
|
var stackPtr = 0; // The index of the current state
|
|
var mode = "none";
|
|
var lastState; // The last state
|
|
var poller;
|
|
var timer; // The setTimeout handle for cancelling the timer
|
|
var inputStateObj;
|
|
|
|
// Set the mode for later logic steps.
|
|
var setMode = function (newMode, noSave) {
|
|
|
|
if (mode != newMode) {
|
|
mode = newMode;
|
|
if (!noSave) {
|
|
saveState();
|
|
}
|
|
}
|
|
|
|
if (!browser.isIE || mode != "moving") {
|
|
timer = window.setTimeout(refreshState, 1);
|
|
}
|
|
else {
|
|
inputStateObj = null;
|
|
}
|
|
};
|
|
|
|
var refreshState = function () {
|
|
inputStateObj = new TextareaState(textarea, wmd);
|
|
poller.tick();
|
|
timer = undefined;
|
|
};
|
|
|
|
this.setCommandMode = function () {
|
|
mode = "command";
|
|
saveState();
|
|
timer = window.setTimeout(refreshState, 0);
|
|
};
|
|
|
|
this.canUndo = function () {
|
|
return stackPtr > 1;
|
|
};
|
|
|
|
this.canRedo = function () {
|
|
if (undoStack[stackPtr + 1]) {
|
|
return true;
|
|
}
|
|
return false;
|
|
};
|
|
|
|
// Removes the last state and restores it.
|
|
this.undo = function () {
|
|
|
|
if (undoObj.canUndo()) {
|
|
if (lastState) {
|
|
// What about setting state -1 to null or checking for undefined?
|
|
lastState.restore();
|
|
lastState = null;
|
|
}
|
|
else {
|
|
undoStack[stackPtr] = new TextareaState(textarea, wmd);
|
|
undoStack[--stackPtr].restore();
|
|
|
|
if (callback) {
|
|
callback();
|
|
}
|
|
}
|
|
}
|
|
|
|
mode = "none";
|
|
textarea.focus();
|
|
refreshState();
|
|
};
|
|
|
|
// Redo an action.
|
|
this.redo = function () {
|
|
|
|
if (undoObj.canRedo()) {
|
|
|
|
undoStack[++stackPtr].restore();
|
|
|
|
if (callback) {
|
|
callback();
|
|
}
|
|
}
|
|
|
|
mode = "none";
|
|
textarea.focus();
|
|
refreshState();
|
|
};
|
|
|
|
// Push the input area state to the stack.
|
|
var saveState = function () {
|
|
|
|
var currState = inputStateObj || new TextareaState(textarea, wmd);
|
|
|
|
if (!currState) {
|
|
return false;
|
|
}
|
|
if (mode == "moving") {
|
|
if (!lastState) {
|
|
lastState = currState;
|
|
}
|
|
return;
|
|
}
|
|
if (lastState) {
|
|
if (undoStack[stackPtr - 1].text != lastState.text) {
|
|
undoStack[stackPtr++] = lastState;
|
|
}
|
|
lastState = null;
|
|
}
|
|
undoStack[stackPtr++] = currState;
|
|
undoStack[stackPtr + 1] = null;
|
|
if (callback) {
|
|
callback();
|
|
}
|
|
};
|
|
|
|
var handleCtrlYZ = function (event) {
|
|
|
|
var handled = false;
|
|
|
|
if (event.ctrlKey || event.metaKey) {
|
|
|
|
// IE and Opera do not support charCode.
|
|
var keyCode = event.charCode || event.keyCode;
|
|
var keyCodeChar = String.fromCharCode(keyCode);
|
|
|
|
switch (keyCodeChar) {
|
|
|
|
case "y":
|
|
undoObj.redo();
|
|
handled = true;
|
|
break;
|
|
|
|
case "z":
|
|
if (!event.shiftKey) {
|
|
undoObj.undo();
|
|
}
|
|
else {
|
|
undoObj.redo();
|
|
}
|
|
handled = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (handled) {
|
|
if (event.preventDefault) {
|
|
event.preventDefault();
|
|
}
|
|
if (window.event) {
|
|
window.event.returnValue = false;
|
|
}
|
|
return;
|
|
}
|
|
};
|
|
|
|
// Set the mode depending on what is going on in the input area.
|
|
var handleModeChange = function (event) {
|
|
|
|
if (!event.ctrlKey && !event.metaKey) {
|
|
|
|
var keyCode = event.keyCode;
|
|
|
|
if ((keyCode >= 33 && keyCode <= 40) || (keyCode >= 63232 && keyCode <= 63235)) {
|
|
// 33 - 40: page up/dn and arrow keys
|
|
// 63232 - 63235: page up/dn and arrow keys on safari
|
|
setMode("moving");
|
|
}
|
|
else if (keyCode == 8 || keyCode == 46 || keyCode == 127) {
|
|
// 8: backspace
|
|
// 46: delete
|
|
// 127: delete
|
|
setMode("deleting");
|
|
}
|
|
else if (keyCode == 13) {
|
|
// 13: Enter
|
|
setMode("newlines");
|
|
}
|
|
else if (keyCode == 27) {
|
|
// 27: escape
|
|
setMode("escape");
|
|
}
|
|
else if ((keyCode < 16 || keyCode > 20) && keyCode != 91) {
|
|
// 16-20 are shift, etc.
|
|
// 91: left window key
|
|
// I think this might be a little messed up since there are
|
|
// a lot of nonprinting keys above 20.
|
|
setMode("typing");
|
|
}
|
|
}
|
|
};
|
|
|
|
var setEventHandlers = function () {
|
|
|
|
util.addEvent(textarea, "keypress", function (event) {
|
|
// keyCode 89: y
|
|
// keyCode 90: z
|
|
if ((event.ctrlKey || event.metaKey) && (event.keyCode == 89 || event.keyCode == 90)) {
|
|
event.preventDefault();
|
|
}
|
|
});
|
|
|
|
var handlePaste = function () {
|
|
if (browser.isIE || (inputStateObj && inputStateObj.text != textarea.value)) {
|
|
if (timer == undefined) {
|
|
mode = "paste";
|
|
saveState();
|
|
refreshState();
|
|
}
|
|
}
|
|
};
|
|
|
|
poller = new InputPoller(textarea, handlePaste, pastePollInterval);
|
|
|
|
util.addEvent(textarea, "keydown", handleCtrlYZ);
|
|
util.addEvent(textarea, "keydown", handleModeChange);
|
|
|
|
util.addEvent(textarea, "mousedown", function () {
|
|
setMode("moving");
|
|
});
|
|
textarea.onpaste = handlePaste;
|
|
textarea.ondrop = handlePaste;
|
|
};
|
|
|
|
var init = function () {
|
|
setEventHandlers();
|
|
refreshState();
|
|
saveState();
|
|
};
|
|
|
|
this.destroy = function () {
|
|
if (poller) {
|
|
poller.destroy();
|
|
}
|
|
};
|
|
|
|
init();
|
|
}; //}}}
|
|
WMDEditor.util = util;
|
|
WMDEditor.position = position;
|
|
WMDEditor.TextareaState = TextareaState;
|
|
WMDEditor.InputPoller = InputPoller;
|
|
WMDEditor.PreviewManager = PreviewManager;
|
|
WMDEditor.UndoManager = UndoManager;
|
|
|
|
// A few handy aliases for readability.
|
|
var doc = window.document;
|
|
var re = window.RegExp;
|
|
var nav = window.navigator;
|
|
|
|
function get_browser() {
|
|
var b = {};
|
|
b.isIE = /msie/.test(nav.userAgent.toLowerCase());
|
|
b.isIE_5or6 = /msie 6/.test(nav.userAgent.toLowerCase()) || /msie 5/.test(nav.userAgent.toLowerCase());
|
|
b.isIE_7plus = b.isIE && !b.isIE_5or6;
|
|
b.isOpera = /opera/.test(nav.userAgent.toLowerCase());
|
|
b.isKonqueror = /konqueror/.test(nav.userAgent.toLowerCase());
|
|
return b;
|
|
}
|
|
|
|
// Used to work around some browser bugs where we can't use feature testing.
|
|
var browser = get_browser();
|
|
|
|
var wmdBase = function (wmd, wmd_options) { // {{{
|
|
// Some namespaces.
|
|
//wmd.Util = {};
|
|
//wmd.Position = {};
|
|
wmd.Command = {};
|
|
wmd.Global = {};
|
|
wmd.buttons = {};
|
|
|
|
wmd.showdown = window.Showdown;
|
|
|
|
var util = WMDEditor.util;
|
|
var position = WMDEditor.position;
|
|
var command = wmd.Command;
|
|
|
|
// Internet explorer has problems with CSS sprite buttons that use HTML
|
|
// lists. When you click on the background image "button", IE will
|
|
// select the non-existent link text and discard the selection in the
|
|
// textarea. The solution to this is to cache the textarea selection
|
|
// on the button's mousedown event and set a flag. In the part of the
|
|
// code where we need to grab the selection, we check for the flag
|
|
// and, if it's set, use the cached area instead of querying the
|
|
// textarea.
|
|
//
|
|
// This ONLY affects Internet Explorer (tested on versions 6, 7
|
|
// and 8) and ONLY on button clicks. Keyboard shortcuts work
|
|
// normally since the focus never leaves the textarea.
|
|
wmd.ieCachedRange = null; // cached textarea selection
|
|
wmd.ieRetardedClick = false; // flag
|
|
// I think my understanding of how the buttons and callbacks are stored in the array is incomplete.
|
|
wmd.editor = function (previewRefreshCallback) { // {{{
|
|
if (!previewRefreshCallback) {
|
|
previewRefreshCallback = function () {};
|
|
}
|
|
|
|
var inputBox = wmd.panels.input;
|
|
|
|
var offsetHeight = 0;
|
|
|
|
var editObj = this;
|
|
|
|
var mainDiv;
|
|
var mainSpan;
|
|
|
|
var div; // This name is pretty ambiguous. I should rename this.
|
|
// Used to cancel recurring events from setInterval.
|
|
var creationHandle;
|
|
|
|
var undoMgr; // The undo manager
|
|
// Perform the button's action.
|
|
var doClick = function (button) {
|
|
|
|
inputBox.focus();
|
|
|
|
if (button.textOp) {
|
|
|
|
if (undoMgr) {
|
|
undoMgr.setCommandMode();
|
|
}
|
|
|
|
var state = new TextareaState(wmd.panels.input, wmd);
|
|
|
|
if (!state) {
|
|
return;
|
|
}
|
|
|
|
var chunks = state.getChunks();
|
|
|
|
// Some commands launch a "modal" prompt dialog. Javascript
|
|
// can't really make a modal dialog box and the WMD code
|
|
// will continue to execute while the dialog is displayed.
|
|
// This prevents the dialog pattern I'm used to and means
|
|
// I can't do something like this:
|
|
//
|
|
// var link = CreateLinkDialog();
|
|
// makeMarkdownLink(link);
|
|
//
|
|
// Instead of this straightforward method of handling a
|
|
// dialog I have to pass any code which would execute
|
|
// after the dialog is dismissed (e.g. link creation)
|
|
// in a function parameter.
|
|
//
|
|
// Yes this is awkward and I think it sucks, but there's
|
|
// no real workaround. Only the image and link code
|
|
// create dialogs and require the function pointers.
|
|
var fixupInputArea = function () {
|
|
|
|
inputBox.focus();
|
|
|
|
if (chunks) {
|
|
state.setChunks(chunks);
|
|
}
|
|
|
|
state.restore();
|
|
previewRefreshCallback();
|
|
};
|
|
|
|
var useDefaultText = true;
|
|
var noCleanup = button.textOp(chunks, fixupInputArea, useDefaultText);
|
|
|
|
if (!noCleanup) {
|
|
fixupInputArea();
|
|
}
|
|
|
|
}
|
|
|
|
if (button.execute) {
|
|
button.execute(editObj);
|
|
}
|
|
};
|
|
|
|
var setUndoRedoButtonStates = function () {
|
|
if (undoMgr) {
|
|
if (wmd.buttons["wmd-undo-button"]) setupButton(wmd.buttons["wmd-undo-button"], undoMgr.canUndo());
|
|
if (wmd.buttons["wmd-redo-button"]) setupButton(wmd.buttons["wmd-redo-button"], undoMgr.canRedo());
|
|
}
|
|
};
|
|
|
|
var setupButton = function (button, isEnabled) {
|
|
|
|
if (isEnabled) {
|
|
button.className = button.className.replace(new RegExp("(^|\\s+)disabled(\\s+|$)"), ' ');
|
|
|
|
// IE tries to select the background image "button" text (it's
|
|
// implemented in a list item) so we have to cache the selection
|
|
// on mousedown.
|
|
if (browser.isIE) {
|
|
button.onmousedown = function () {
|
|
wmd.ieRetardedClick = true;
|
|
wmd.ieCachedRange = document.selection.createRange();
|
|
};
|
|
}
|
|
|
|
if (!button.isHelp) {
|
|
button.onclick = function () {
|
|
if (this.onmouseout) {
|
|
this.onmouseout();
|
|
}
|
|
doClick(this);
|
|
return false;
|
|
};
|
|
}
|
|
}
|
|
else {
|
|
button.className += (button.className ? ' ' : '') + 'disabled';
|
|
button.onmouseover = button.onmouseout = button.onclick = function () {};
|
|
}
|
|
};
|
|
|
|
var makeSpritedButtonRow = function () {
|
|
|
|
var buttonBar = (typeof wmd_options.button_bar == 'string') ? document.getElementById(wmd_options.button_bar || "wmd-button-bar") : wmd_options.button_bar;
|
|
|
|
var normalYShift = "0px";
|
|
var disabledYShift = "-20px";
|
|
var highlightYShift = "-40px";
|
|
|
|
var buttonRow = document.createElement("ul");
|
|
buttonRow.className = "wmd-button-row";
|
|
buttonRow = buttonBar.appendChild(buttonRow);
|
|
|
|
var xoffset = 0;
|
|
|
|
function createButton(name, title, textOp) {
|
|
var button = document.createElement("li");
|
|
wmd.buttons[name] = button;
|
|
button.className = "wmd-button " + name;
|
|
button.XShift = xoffset + "px";
|
|
xoffset -= 20;
|
|
|
|
if (title) button.title = title;
|
|
|
|
if (textOp) button.textOp = textOp;
|
|
|
|
return button;
|
|
}
|
|
|
|
function addButton(name, title, textOp) {
|
|
var button = createButton(name, title, textOp);
|
|
|
|
setupButton(button, true);
|
|
buttonRow.appendChild(button);
|
|
return button;
|
|
}
|
|
|
|
function addSpacer() {
|
|
var spacer = document.createElement("li");
|
|
spacer.className = "wmd-spacer";
|
|
buttonRow.appendChild(spacer);
|
|
return spacer;
|
|
}
|
|
|
|
// Detection of mac for displaying proper modifier key.
|
|
var modifierKey = (navigator.appVersion.indexOf("Mac")!=-1) ? "Cmd" : "Ctrl";
|
|
|
|
var buttonlist = wmd_options.buttons.split(' ');
|
|
for (var i=0;i<buttonlist.length;i++) {
|
|
switch (buttonlist[i]) {
|
|
case "bold":
|
|
addButton("wmd-bold-button", "Strong <strong> "+modifierKey+"+B", command.doBold);
|
|
break;
|
|
case "italic":
|
|
addButton("wmd-italic-button", "Emphasis <em> "+modifierKey+"+I", command.doItalic);
|
|
break;
|
|
case 'link':
|
|
addButton("wmd-link-button", "Hyperlink <a> "+modifierKey+"+L", function (chunk, postProcessing, useDefaultText) {
|
|
return command.doLinkOrImage(chunk, postProcessing, false);
|
|
});
|
|
break;
|
|
case 'blockquote':
|
|
addButton("wmd-quote-button", "Blockquote <blockquote> "+modifierKey+"+Q", command.doBlockquote);
|
|
break;
|
|
case 'code':
|
|
addButton("wmd-code-button", "Code Sample <pre><code> "+modifierKey+"+K", command.doCode);
|
|
break;
|
|
case 'image':
|
|
addButton("wmd-image-button", "Image <img> "+modifierKey+"+G", function (chunk, postProcessing, useDefaultText) {
|
|
return command.doLinkOrImage(chunk, postProcessing, true);
|
|
});
|
|
break;
|
|
case 'ol':
|
|
addButton("wmd-olist-button", "Numbered List <ol> "+modifierKey+"+O", function (chunk, postProcessing, useDefaultText) {
|
|
command.doList(chunk, postProcessing, true, useDefaultText);
|
|
});
|
|
break;
|
|
case 'ul':
|
|
addButton("wmd-ulist-button", "Bulleted List <ul> "+modifierKey+"+U", function (chunk, postProcessing, useDefaultText) {
|
|
command.doList(chunk, postProcessing, false, useDefaultText);
|
|
});
|
|
break;
|
|
case 'heading':
|
|
addButton("wmd-heading-button", "Heading <h1>/<h2> "+modifierKey+"+H", command.doHeading);
|
|
break;
|
|
case 'hr':
|
|
addButton("wmd-hr-button", "Horizontal Rule <hr> "+modifierKey+"+R", command.doHorizontalRule);
|
|
break;
|
|
case 'undo':
|
|
var undoButton = addButton("wmd-undo-button", "Undo - "+modifierKey+"+Z");
|
|
undoButton.execute = function (manager) {
|
|
manager.undo();
|
|
};
|
|
break;
|
|
case 'redo':
|
|
var redoButton = addButton("wmd-redo-button", "Redo - "+modifierKey+"+Y");
|
|
if (/win/.test(nav.platform.toLowerCase())) {
|
|
redoButton.title = "Redo - "+modifierKey+"+Y";
|
|
}
|
|
else {
|
|
// mac and other non-Windows platforms
|
|
redoButton.title = "Redo - "+modifierKey+"+Shift+Z";
|
|
}
|
|
redoButton.execute = function (manager) {
|
|
manager.redo();
|
|
};
|
|
break;
|
|
case 'help':
|
|
var helpButton = createButton("wmd-help-button");
|
|
helpButton.isHelp = true;
|
|
setupButton(helpButton, true);
|
|
buttonRow.appendChild(helpButton);
|
|
|
|
var helpAnchor = document.createElement("a");
|
|
helpAnchor.href = wmd_options.helpLink;
|
|
helpAnchor.target = wmd_options.helpTarget;
|
|
helpAnchor.title = wmd_options.helpHoverTitle;
|
|
helpButton.appendChild(helpAnchor);
|
|
break;
|
|
case '':
|
|
addSpacer();
|
|
break;
|
|
}
|
|
}
|
|
|
|
setUndoRedoButtonStates();
|
|
};
|
|
|
|
var setupEditor = function () {
|
|
|
|
if (/\?noundo/.test(document.location.href)) {
|
|
wmd.nativeUndo = true;
|
|
}
|
|
|
|
if (!wmd.nativeUndo) {
|
|
undoMgr = new UndoManager(wmd, wmd.panels.input, wmd.options.pastePollInterval, function () {
|
|
previewRefreshCallback();
|
|
setUndoRedoButtonStates();
|
|
});
|
|
}
|
|
|
|
makeSpritedButtonRow();
|
|
|
|
|
|
var keyEvent = "keydown";
|
|
if (browser.isOpera) {
|
|
keyEvent = "keypress";
|
|
}
|
|
|
|
util.addEvent(inputBox, keyEvent, function (key) {
|
|
|
|
// Check to see if we have a button key and, if so execute the callback.
|
|
if (wmd.options.modifierKeys && (key.ctrlKey || key.metaKey)) {
|
|
|
|
var keyCode = key.charCode || key.keyCode;
|
|
var keyCodeStr = String.fromCharCode(keyCode).toLowerCase();
|
|
|
|
switch (keyCodeStr) {
|
|
case wmd.options.modifierKeys.bold:
|
|
if (wmd.buttons["wmd-bold-button"]) doClick(wmd.buttons["wmd-bold-button"]);
|
|
else return;
|
|
break;
|
|
case wmd.options.modifierKeys.italic:
|
|
if (wmd.buttons["wmd-italic-button"]) doClick(wmd.buttons["wmd-italic-button"]);
|
|
else return;
|
|
break;
|
|
case wmd.options.modifierKeys.link:
|
|
if (wmd.buttons["wmd-link-button"]) doClick(wmd.buttons["wmd-link-button"]);
|
|
else return;
|
|
break;
|
|
case wmd.options.modifierKeys.quote:
|
|
if (wmd.buttons["wmd-quote-button"]) doClick(wmd.buttons["wmd-quote-button"]);
|
|
else return;
|
|
break;
|
|
case wmd.options.modifierKeys.code:
|
|
if (wmd.buttons["wmd-code-button"]) doClick(wmd.buttons["wmd-code-button"]);
|
|
else return;
|
|
break;
|
|
case wmd.options.modifierKeys.image:
|
|
if (wmd.buttons["wmd-image-button"]) doClick(wmd.buttons["wmd-image-button"]);
|
|
else return;
|
|
break;
|
|
case wmd.options.modifierKeys.orderedList:
|
|
if (wmd.buttons["wmd-olist-button"]) doClick(wmd.buttons["wmd-olist-button"]);
|
|
else return;
|
|
break;
|
|
case wmd.options.modifierKeys.unorderedList:
|
|
if (wmd.buttons["wmd-ulist-button"]) doClick(wmd.buttons["wmd-ulist-button"]);
|
|
else return;
|
|
break;
|
|
case wmd.options.modifierKeys.heading:
|
|
if (wmd.buttons["wmd-heading-button"]) doClick(wmd.buttons["wmd-heading-button"]);
|
|
else return;
|
|
break;
|
|
case wmd.options.modifierKeys.horizontalRule:
|
|
if (wmd.buttons["wmd-hr-button"]) doClick(wmd.buttons["wmd-hr-button"]);
|
|
else return;
|
|
break;
|
|
case wmd.options.modifierKeys.redo:
|
|
if (wmd.buttons["wmd-redo-button"]) doClick(wmd.buttons["wmd-redo-button"]);
|
|
else return;
|
|
break;
|
|
case wmd.options.modifierKeys.undo:
|
|
if (key.shiftKey) {
|
|
if (wmd.buttons["wmd-redo-button"]) doClick(wmd.buttons["wmd-redo-button"]);
|
|
else return;
|
|
} else {
|
|
if (wmd.buttons["wmd-undo-button"]) doClick(wmd.buttons["wmd-undo-button"]);
|
|
else return;
|
|
}
|
|
break;
|
|
default:
|
|
return;
|
|
}
|
|
|
|
|
|
if (key.preventDefault) {
|
|
key.preventDefault();
|
|
}
|
|
|
|
if (window.event) {
|
|
window.event.returnValue = false;
|
|
}
|
|
}
|
|
});
|
|
|
|
// Auto-continue lists, code blocks and block quotes when
|
|
// the enter key is pressed.
|
|
util.addEvent(inputBox, "keyup", function (key) {
|
|
if (!key.shiftKey && !key.ctrlKey && !key.metaKey) {
|
|
var keyCode = key.charCode || key.keyCode;
|
|
// Key code 13 is Enter
|
|
if (keyCode === 13) {
|
|
fakeButton = {};
|
|
fakeButton.textOp = command.doAutoindent;
|
|
doClick(fakeButton);
|
|
}
|
|
}
|
|
});
|
|
|
|
// Disable ESC clearing the input textarea on IE
|
|
if (browser.isIE) {
|
|
util.addEvent(inputBox, "keydown", function (key) {
|
|
var code = key.keyCode;
|
|
// Key code 27 is ESC
|
|
if (code === 27) {
|
|
return false;
|
|
}
|
|
});
|
|
}
|
|
};
|
|
|
|
|
|
this.undo = function () {
|
|
if (undoMgr) {
|
|
undoMgr.undo();
|
|
}
|
|
};
|
|
|
|
this.redo = function () {
|
|
if (undoMgr) {
|
|
undoMgr.redo();
|
|
}
|
|
};
|
|
|
|
// This is pretty useless. The setupEditor function contents
|
|
// should just be copied here.
|
|
var init = function () {
|
|
setupEditor();
|
|
};
|
|
|
|
this.destroy = function () {
|
|
if (undoMgr) {
|
|
undoMgr.destroy();
|
|
}
|
|
if (div.parentNode) {
|
|
div.parentNode.removeChild(div);
|
|
}
|
|
if (inputBox) {
|
|
inputBox.style.marginTop = "";
|
|
}
|
|
window.clearInterval(creationHandle);
|
|
};
|
|
|
|
init();
|
|
}; // }}}
|
|
// command {{{
|
|
// The markdown symbols - 4 spaces = code, > = blockquote, etc.
|
|
command.prefixes = "(?:\\s{4,}|\\s*>|\\s*-\\s+|\\s*\\d+\\.|=|\\+|-|_|\\*|#|\\s*\\[[^\n]]+\\]:)";
|
|
|
|
// Remove markdown symbols from the chunk selection.
|
|
command.unwrap = function (chunk) {
|
|
var txt = new re("([^\\n])\\n(?!(\\n|" + command.prefixes + "))", "g");
|
|
chunk.selection = chunk.selection.replace(txt, "$1 $2");
|
|
};
|
|
|
|
command.wrap = function (chunk, len) {
|
|
command.unwrap(chunk);
|
|
var regex = new re("(.{1," + len + "})( +|$\\n?)", "gm");
|
|
|
|
chunk.selection = chunk.selection.replace(regex, function (line, marked) {
|
|
if (new re("^" + command.prefixes, "").test(line)) {
|
|
return line;
|
|
}
|
|
return marked + "\n";
|
|
});
|
|
|
|
chunk.selection = chunk.selection.replace(/\s+$/, "");
|
|
};
|
|
|
|
command.doBold = function (chunk, postProcessing, useDefaultText) {
|
|
return command.doBorI(chunk, 2, "strong text");
|
|
};
|
|
|
|
command.doItalic = function (chunk, postProcessing, useDefaultText) {
|
|
return command.doBorI(chunk, 1, "emphasized text");
|
|
};
|
|
|
|
// chunk: The selected region that will be enclosed with */**
|
|
// nStars: 1 for italics, 2 for bold
|
|
// insertText: If you just click the button without highlighting text, this gets inserted
|
|
command.doBorI = function (chunk, nStars, insertText) {
|
|
|
|
// Get rid of whitespace and fixup newlines.
|
|
chunk.trimWhitespace();
|
|
chunk.selection = chunk.selection.replace(/\n{2,}/g, "\n");
|
|
|
|
// Look for stars before and after. Is the chunk already marked up?
|
|
chunk.before.search(/(\**$)/);
|
|
var starsBefore = re.$1;
|
|
|
|
chunk.after.search(/(^\**)/);
|
|
var starsAfter = re.$1;
|
|
|
|
var prevStars = Math.min(starsBefore.length, starsAfter.length);
|
|
|
|
// Remove stars if we have to since the button acts as a toggle.
|
|
if ((prevStars >= nStars) && (prevStars != 2 || nStars != 1)) {
|
|
chunk.before = chunk.before.replace(re("[*]{" + nStars + "}$", ""), "");
|
|
chunk.after = chunk.after.replace(re("^[*]{" + nStars + "}", ""), "");
|
|
}
|
|
else if (!chunk.selection && starsAfter) {
|
|
// It's not really clear why this code is necessary. It just moves
|
|
// some arbitrary stuff around.
|
|
chunk.after = chunk.after.replace(/^([*_]*)/, "");
|
|
chunk.before = chunk.before.replace(/(\s?)$/, "");
|
|
var whitespace = re.$1;
|
|
chunk.before = chunk.before + starsAfter + whitespace;
|
|
}
|
|
else {
|
|
|
|
// In most cases, if you don't have any selected text and click the button
|
|
// you'll get a selected, marked up region with the default text inserted.
|
|
if (!chunk.selection && !starsAfter) {
|
|
chunk.selection = insertText;
|
|
}
|
|
|
|
// Add the true markup.
|
|
var markup = nStars <= 1 ? "*" : "**"; // shouldn't the test be = ?
|
|
chunk.before = chunk.before + markup;
|
|
chunk.after = markup + chunk.after;
|
|
}
|
|
|
|
return;
|
|
};
|
|
|
|
command.stripLinkDefs = function (text, defsToAdd) {
|
|
|
|
text = text.replace(/^[ ]{0,3}\[(\d+)\]:[ \t]*\n?[ \t]*<?(\S+?)>?[ \t]*\n?[ \t]*(?:(\n*)["(](.+?)[")][ \t]*)?(?:\n+|$)/gm, function (totalMatch, id, link, newlines, title) {
|
|
defsToAdd[id] = totalMatch.replace(/\s*$/, "");
|
|
if (newlines) {
|
|
// Strip the title and return that separately.
|
|
defsToAdd[id] = totalMatch.replace(/["(](.+?)[")]$/, "");
|
|
return newlines + title;
|
|
}
|
|
return "";
|
|
});
|
|
|
|
return text;
|
|
};
|
|
|
|
command.addLinkDef = function (chunk, linkDef) {
|
|
|
|
var refNumber = 0; // The current reference number
|
|
var defsToAdd = {}; //
|
|
// Start with a clean slate by removing all previous link definitions.
|
|
chunk.before = command.stripLinkDefs(chunk.before, defsToAdd);
|
|
chunk.selection = command.stripLinkDefs(chunk.selection, defsToAdd);
|
|
chunk.after = command.stripLinkDefs(chunk.after, defsToAdd);
|
|
|
|
var defs = "";
|
|
var regex = /(\[(?:\[[^\]]*\]|[^\[\]])*\][ ]?(?:\n[ ]*)?\[)(\d+)(\])/g;
|
|
|
|
var addDefNumber = function (def) {
|
|
refNumber++;
|
|
def = def.replace(/^[ ]{0,3}\[(\d+)\]:/, " [" + refNumber + "]:");
|
|
defs += "\n" + def;
|
|
};
|
|
|
|
var getLink = function (wholeMatch, link, id, end) {
|
|
|
|
if (defsToAdd[id]) {
|
|
addDefNumber(defsToAdd[id]);
|
|
return link + refNumber + end;
|
|
|
|
}
|
|
return wholeMatch;
|
|
};
|
|
|
|
chunk.before = chunk.before.replace(regex, getLink);
|
|
|
|
if (linkDef) {
|
|
addDefNumber(linkDef);
|
|
}
|
|
else {
|
|
chunk.selection = chunk.selection.replace(regex, getLink);
|
|
}
|
|
|
|
var refOut = refNumber;
|
|
|
|
chunk.after = chunk.after.replace(regex, getLink);
|
|
|
|
if (chunk.after) {
|
|
chunk.after = chunk.after.replace(/\n*$/, "");
|
|
}
|
|
if (!chunk.after) {
|
|
chunk.selection = chunk.selection.replace(/\n*$/, "");
|
|
}
|
|
|
|
chunk.after += "\n\n" + defs;
|
|
|
|
return refOut;
|
|
};
|
|
|
|
command.doLinkOrImage = function (chunk, postProcessing, isImage) {
|
|
|
|
chunk.trimWhitespace();
|
|
chunk.findTags(/\s*!?\[/, /\][ ]?(?:\n[ ]*)?(\[.*?\])?/);
|
|
|
|
if (chunk.endTag.length > 1) {
|
|
|
|
chunk.startTag = chunk.startTag.replace(/!?\[/, "");
|
|
chunk.endTag = "";
|
|
command.addLinkDef(chunk, null);
|
|
|
|
}
|
|
else {
|
|
|
|
if (/\n\n/.test(chunk.selection)) {
|
|
command.addLinkDef(chunk, null);
|
|
return;
|
|
}
|
|
|
|
// The function to be executed when you enter a link and press OK or Cancel.
|
|
// Marks up the link and adds the ref.
|
|
var makeLinkMarkdown = function (link) {
|
|
console.log(link);
|
|
if (link !== null) {
|
|
|
|
chunk.startTag = chunk.endTag = "";
|
|
var linkDef = " [999]: " + link;
|
|
|
|
var num = command.addLinkDef(chunk, linkDef);
|
|
chunk.startTag = isImage ? "![" : "[";
|
|
chunk.endTag = "][" + num + "]";
|
|
|
|
if (!chunk.selection) {
|
|
if (isImage) {
|
|
chunk.selection = "alt text";
|
|
}
|
|
else {
|
|
chunk.selection = "link text";
|
|
}
|
|
}
|
|
}
|
|
postProcessing();
|
|
};
|
|
|
|
if (isImage) {
|
|
util.prompt(wmd_options.imageDialogText, wmd_options.imageDefaultText, makeLinkMarkdown, 'Image');
|
|
}
|
|
else {
|
|
util.prompt(wmd_options.linkDialogText, wmd_options.linkDefaultText, makeLinkMarkdown, 'Link');
|
|
}
|
|
return true;
|
|
}
|
|
};
|
|
|
|
// Moves the cursor to the next line and continues lists, quotes and code.
|
|
command.doAutoindent = function (chunk, postProcessing, useDefaultText) {
|
|
if (!wmd.options.autoFormatting) return;
|
|
|
|
if (wmd.options.autoFormatting.list) chunk.before = chunk.before.replace(/(\n|^)[ ]{0,3}([*+-]|\d+[.])[ \t]*\n$/, "\n\n");
|
|
if (wmd.options.autoFormatting.quote) chunk.before = chunk.before.replace(/(\n|^)[ ]{0,3}>[ \t]*\n$/, "\n\n");
|
|
if (wmd.options.autoFormatting.code) chunk.before = chunk.before.replace(/(\n|^)[ \t]+\n$/, "\n\n");
|
|
|
|
useDefaultText = false;
|
|
|
|
if (/(\n|^)[ ]{0,3}([*+-])[ \t]+.*\n$/.test(chunk.before)) {
|
|
if (command.doList && wmd.options.autoFormatting.list) {
|
|
command.doList(chunk, postProcessing, false, true);
|
|
}
|
|
}
|
|
if (/(\n|^)[ ]{0,3}(\d+[.])[ \t]+.*\n$/.test(chunk.before)) {
|
|
if (command.doList && wmd.options.autoFormatting.list) {
|
|
command.doList(chunk, postProcessing, true, true);
|
|
}
|
|
}
|
|
if (/(\n|^)[ ]{0,3}>[ \t]+.*\n$/.test(chunk.before)) {
|
|
if (command.doBlockquote && wmd.options.autoFormatting.quote) {
|
|
command.doBlockquote(chunk, postProcessing, useDefaultText);
|
|
}
|
|
}
|
|
if (/(\n|^)(\t|[ ]{4,}).*\n$/.test(chunk.before)) {
|
|
if (command.doCode && wmd.options.autoFormatting.code) {
|
|
command.doCode(chunk, postProcessing, useDefaultText);
|
|
}
|
|
}
|
|
};
|
|
|
|
command.doBlockquote = function (chunk, postProcessing, useDefaultText) {
|
|
|
|
chunk.selection = chunk.selection.replace(/^(\n*)([^\r]+?)(\n*)$/, function (totalMatch, newlinesBefore, text, newlinesAfter) {
|
|
chunk.before += newlinesBefore;
|
|
chunk.after = newlinesAfter + chunk.after;
|
|
return text;
|
|
});
|
|
|
|
chunk.before = chunk.before.replace(/(>[ \t]*)$/, function (totalMatch, blankLine) {
|
|
chunk.selection = blankLine + chunk.selection;
|
|
return "";
|
|
});
|
|
|
|
var defaultText = useDefaultText ? "Blockquote" : "";
|
|
chunk.selection = chunk.selection.replace(/^(\s|>)+$/, "");
|
|
chunk.selection = chunk.selection || defaultText;
|
|
|
|
if (chunk.before) {
|
|
chunk.before = chunk.before.replace(/\n?$/, "\n");
|
|
}
|
|
if (chunk.after) {
|
|
chunk.after = chunk.after.replace(/^\n?/, "\n");
|
|
}
|
|
|
|
chunk.before = chunk.before.replace(/(((\n|^)(\n[ \t]*)*>(.+\n)*.*)+(\n[ \t]*)*$)/, function (totalMatch) {
|
|
chunk.startTag = totalMatch;
|
|
return "";
|
|
});
|
|
|
|
chunk.after = chunk.after.replace(/^(((\n|^)(\n[ \t]*)*>(.+\n)*.*)+(\n[ \t]*)*)/, function (totalMatch) {
|
|
chunk.endTag = totalMatch;
|
|
return "";
|
|
});
|
|
|
|
var replaceBlanksInTags = function (useBracket) {
|
|
|
|
var replacement = useBracket ? "> " : "";
|
|
|
|
if (chunk.startTag) {
|
|
chunk.startTag = chunk.startTag.replace(/\n((>|\s)*)\n$/, function (totalMatch, markdown) {
|
|
return "\n" + markdown.replace(/^[ ]{0,3}>?[ \t]*$/gm, replacement) + "\n";
|
|
});
|
|
}
|
|
if (chunk.endTag) {
|
|
chunk.endTag = chunk.endTag.replace(/^\n((>|\s)*)\n/, function (totalMatch, markdown) {
|
|
return "\n" + markdown.replace(/^[ ]{0,3}>?[ \t]*$/gm, replacement) + "\n";
|
|
});
|
|
}
|
|
};
|
|
|
|
if (/^(?![ ]{0,3}>)/m.test(chunk.selection)) {
|
|
command.wrap(chunk, wmd_options.lineLength - 2);
|
|
chunk.selection = chunk.selection.replace(/^/gm, "> ");
|
|
replaceBlanksInTags(true);
|
|
chunk.addBlankLines();
|
|
}
|
|
else {
|
|
chunk.selection = chunk.selection.replace(/^[ ]{0,3}> ?/gm, "");
|
|
command.unwrap(chunk);
|
|
replaceBlanksInTags(false);
|
|
|
|
if (!/^(\n|^)[ ]{0,3}>/.test(chunk.selection) && chunk.startTag) {
|
|
chunk.startTag = chunk.startTag.replace(/\n{0,2}$/, "\n\n");
|
|
}
|
|
|
|
if (!/(\n|^)[ ]{0,3}>.*$/.test(chunk.selection) && chunk.endTag) {
|
|
chunk.endTag = chunk.endTag.replace(/^\n{0,2}/, "\n\n");
|
|
}
|
|
}
|
|
|
|
if (!/\n/.test(chunk.selection)) {
|
|
chunk.selection = chunk.selection.replace(/^(> *)/, function (wholeMatch, blanks) {
|
|
chunk.startTag += blanks;
|
|
return "";
|
|
});
|
|
}
|
|
};
|
|
|
|
command.doCode = function (chunk, postProcessing, useDefaultText) {
|
|
|
|
var hasTextBefore = /\S[ ]*$/.test(chunk.before);
|
|
var hasTextAfter = /^[ ]*\S/.test(chunk.after);
|
|
|
|
// Use 'four space' markdown if the selection is on its own
|
|
// line or is multiline.
|
|
if ((!hasTextAfter && !hasTextBefore) || /\n/.test(chunk.selection)) {
|
|
|
|
chunk.before = chunk.before.replace(/[ ]{4}$/, function (totalMatch) {
|
|
chunk.selection = totalMatch + chunk.selection;
|
|
return "";
|
|
});
|
|
|
|
var nLinesBefore = 1;
|
|
var nLinesAfter = 1;
|
|
|
|
|
|
if (/\n(\t|[ ]{4,}).*\n$/.test(chunk.before) || chunk.after === "") {
|
|
nLinesBefore = 0;
|
|
}
|
|
if (/^\n(\t|[ ]{4,})/.test(chunk.after)) {
|
|
nLinesAfter = 0; // This needs to happen on line 1
|
|
}
|
|
|
|
chunk.addBlankLines(nLinesBefore, nLinesAfter);
|
|
|
|
if (!chunk.selection) {
|
|
chunk.startTag = " ";
|
|
chunk.selection = useDefaultText ? "enter code here" : "";
|
|
}
|
|
else {
|
|
if (/^[ ]{0,3}\S/m.test(chunk.selection)) {
|
|
chunk.selection = chunk.selection.replace(/^/gm, " ");
|
|
}
|
|
else {
|
|
chunk.selection = chunk.selection.replace(/^[ ]{4}/gm, "");
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
// Use backticks (`) to delimit the code block.
|
|
chunk.trimWhitespace();
|
|
chunk.findTags(/`/, /`/);
|
|
|
|
if (!chunk.startTag && !chunk.endTag) {
|
|
chunk.startTag = chunk.endTag = "`";
|
|
if (!chunk.selection) {
|
|
chunk.selection = useDefaultText ? "enter code here" : "";
|
|
}
|
|
}
|
|
else if (chunk.endTag && !chunk.startTag) {
|
|
chunk.before += chunk.endTag;
|
|
chunk.endTag = "";
|
|
}
|
|
else {
|
|
chunk.startTag = chunk.endTag = "";
|
|
}
|
|
}
|
|
};
|
|
|
|
command.doList = function (chunk, postProcessing, isNumberedList, useDefaultText) {
|
|
|
|
// These are identical except at the very beginning and end.
|
|
// Should probably use the regex extension function to make this clearer.
|
|
var previousItemsRegex = /(\n|^)(([ ]{0,3}([*+-]|\d+[.])[ \t]+.*)(\n.+|\n{2,}([*+-].*|\d+[.])[ \t]+.*|\n{2,}[ \t]+\S.*)*)\n*$/;
|
|
var nextItemsRegex = /^\n*(([ ]{0,3}([*+-]|\d+[.])[ \t]+.*)(\n.+|\n{2,}([*+-].*|\d+[.])[ \t]+.*|\n{2,}[ \t]+\S.*)*)\n*/;
|
|
|
|
// The default bullet is a dash but others are possible.
|
|
// This has nothing to do with the particular HTML bullet,
|
|
// it's just a markdown bullet.
|
|
var bullet = "-";
|
|
|
|
// The number in a numbered list.
|
|
var num = 1;
|
|
|
|
// Get the item prefix - e.g. " 1. " for a numbered list, " - " for a bulleted list.
|
|
var getItemPrefix = function () {
|
|
var prefix;
|
|
if (isNumberedList) {
|
|
prefix = " " + num + ". ";
|
|
num++;
|
|
}
|
|
else {
|
|
prefix = " " + bullet + " ";
|
|
}
|
|
return prefix;
|
|
};
|
|
|
|
// Fixes the prefixes of the other list items.
|
|
var getPrefixedItem = function (itemText) {
|
|
|
|
// The numbering flag is unset when called by autoindent.
|
|
if (isNumberedList === undefined) {
|
|
isNumberedList = /^\s*\d/.test(itemText);
|
|
}
|
|
|
|
// Renumber/bullet the list element.
|
|
itemText = itemText.replace(/^[ ]{0,3}([*+-]|\d+[.])\s/gm, function (_) {
|
|
return getItemPrefix();
|
|
});
|
|
|
|
return itemText;
|
|
};
|
|
|
|
chunk.findTags(/(\n|^)*[ ]{0,3}([*+-]|\d+[.])\s+/, null);
|
|
|
|
if (chunk.before && !/\n$/.test(chunk.before) && !/^\n/.test(chunk.startTag)) {
|
|
chunk.before += chunk.startTag;
|
|
chunk.startTag = "";
|
|
}
|
|
|
|
if (chunk.startTag) {
|
|
|
|
var hasDigits = /\d+[.]/.test(chunk.startTag);
|
|
chunk.startTag = "";
|
|
chunk.selection = chunk.selection.replace(/\n[ ]{4}/g, "\n");
|
|
command.unwrap(chunk);
|
|
chunk.addBlankLines();
|
|
|
|
if (hasDigits) {
|
|
// Have to renumber the bullet points if this is a numbered list.
|
|
chunk.after = chunk.after.replace(nextItemsRegex, getPrefixedItem);
|
|
}
|
|
if (isNumberedList == hasDigits) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
var nLinesBefore = 1;
|
|
|
|
chunk.before = chunk.before.replace(previousItemsRegex, function (itemText) {
|
|
if (/^\s*([*+-])/.test(itemText)) {
|
|
bullet = re.$1;
|
|
}
|
|
nLinesBefore = /[^\n]\n\n[^\n]/.test(itemText) ? 1 : 0;
|
|
return getPrefixedItem(itemText);
|
|
});
|
|
|
|
if (!chunk.selection) {
|
|
chunk.selection = useDefaultText ? "List item" : " ";
|
|
}
|
|
|
|
var prefix = getItemPrefix();
|
|
|
|
var nLinesAfter = 1;
|
|
|
|
chunk.after = chunk.after.replace(nextItemsRegex, function (itemText) {
|
|
nLinesAfter = /[^\n]\n\n[^\n]/.test(itemText) ? 1 : 0;
|
|
return getPrefixedItem(itemText);
|
|
});
|
|
|
|
chunk.trimWhitespace(true);
|
|
chunk.addBlankLines(nLinesBefore, nLinesAfter, true);
|
|
chunk.startTag = prefix;
|
|
var spaces = prefix.replace(/./g, " ");
|
|
command.wrap(chunk, wmd_options.lineLength - spaces.length);
|
|
chunk.selection = chunk.selection.replace(/\n/g, "\n" + spaces);
|
|
|
|
};
|
|
|
|
command.doHeading = function (chunk, postProcessing, useDefaultText) {
|
|
|
|
// Remove leading/trailing whitespace and reduce internal spaces to single spaces.
|
|
chunk.selection = chunk.selection.replace(/\s+/g, " ");
|
|
chunk.selection = chunk.selection.replace(/(^\s+|\s+$)/g, "");
|
|
|
|
// If we clicked the button with no selected text, we just
|
|
// make a level 2 hash header around some default text.
|
|
if (!chunk.selection) {
|
|
chunk.startTag = "## ";
|
|
chunk.selection = "Heading";
|
|
chunk.endTag = " ##";
|
|
return;
|
|
}
|
|
|
|
var headerLevel = 0; // The existing header level of the selected text.
|
|
// Remove any existing hash heading markdown and save the header level.
|
|
chunk.findTags(/#+[ ]*/, /[ ]*#+/);
|
|
if (/#+/.test(chunk.startTag)) {
|
|
headerLevel = re.lastMatch.length;
|
|
}
|
|
chunk.startTag = chunk.endTag = "";
|
|
|
|
// Try to get the current header level by looking for - and = in the line
|
|
// below the selection.
|
|
chunk.findTags(null, /\s?(-+|=+)/);
|
|
if (/=+/.test(chunk.endTag)) {
|
|
headerLevel = 1;
|
|
}
|
|
if (/-+/.test(chunk.endTag)) {
|
|
headerLevel = 2;
|
|
}
|
|
|
|
// Skip to the next line so we can create the header markdown.
|
|
chunk.startTag = chunk.endTag = "";
|
|
chunk.addBlankLines(1, 1);
|
|
|
|
// We make a level 2 header if there is no current header.
|
|
// If there is a header level, we substract one from the header level.
|
|
// If it's already a level 1 header, it's removed.
|
|
var headerLevelToCreate = headerLevel == 0 ? 2 : headerLevel - 1;
|
|
|
|
if (headerLevelToCreate > 0) {
|
|
|
|
// The button only creates level 1 and 2 underline headers.
|
|
// Why not have it iterate over hash header levels? Wouldn't that be easier and cleaner?
|
|
var headerChar = headerLevelToCreate >= 2 ? "-" : "=";
|
|
var len = chunk.selection.length;
|
|
if (len > wmd_options.lineLength) {
|
|
len = wmd_options.lineLength;
|
|
}
|
|
chunk.endTag = "\n";
|
|
while (len--) {
|
|
chunk.endTag += headerChar;
|
|
}
|
|
}
|
|
};
|
|
|
|
command.doHorizontalRule = function (chunk, postProcessing, useDefaultText) {
|
|
chunk.startTag = "----------\n";
|
|
chunk.selection = "";
|
|
chunk.addBlankLines(2, 1, true);
|
|
};
|
|
// }}}
|
|
}; // }}}
|
|
})();
|
|
|
|
// For backward compatibility
|
|
|
|
function setup_wmd(options) {
|
|
return new WMDEditor(options);
|
|
}//
|
|
// showdown.js -- A javascript port of Markdown.
|
|
//
|
|
// Copyright (c) 2010-2011 Jarvis Badgley <http://chipersoft.com>.
|
|
|
|
// Copyright (c) 2007 John Fraser <http://www.attacklab.net/>.
|
|
//
|
|
// Original Markdown Copyright (c) 2004-2005 John Gruber
|
|
// <http://daringfireball.net/projects/markdown/>
|
|
//
|
|
//
|
|
// Showdown usage:
|
|
//
|
|
// var text = "Markdown *rocks*.";
|
|
//
|
|
// var converter = new Showdown.converter();
|
|
// var html = converter.makeHtml(text);
|
|
//
|
|
// alert(html);
|
|
//
|
|
// Note: move the sample code to the bottom of this
|
|
// file before uncommenting it.
|
|
//
|
|
|
|
//
|
|
// Showdown namespace
|
|
//
|
|
Showdown = {};
|
|
|
|
//
|
|
// converter
|
|
//
|
|
// Wraps all "globals" so that the only thing
|
|
// exposed is makeHtml().
|
|
//
|
|
Showdown.converter = function () {
|
|
|
|
//
|
|
// Globals:
|
|
//
|
|
// Global hashes, used by various utility routines
|
|
var g_urls;
|
|
var g_titles;
|
|
var g_html_blocks;
|
|
|
|
// Used to track when we're inside an ordered or unordered list
|
|
// (see _ProcessListItems() for details):
|
|
var g_list_level = 0;
|
|
|
|
|
|
this.makeHtml = function (text) {
|
|
//
|
|
// Main function. The order in which other subs are called here is
|
|
// essential. Link and image substitutions need to happen before
|
|
// _EscapeSpecialCharsWithinTagAttributes(), so that any *'s or _'s in the <a>
|
|
// and <img> tags get encoded.
|
|
//
|
|
// Clear the global hashes. If we don't clear these, you get conflicts
|
|
// from other articles when generating a page which contains more than
|
|
// one article (e.g. an index page that shows the N most recent
|
|
// articles):
|
|
g_urls = [];
|
|
g_titles = [];
|
|
g_html_blocks = [];
|
|
|
|
// attacklab: Replace ~ with ~T
|
|
// This lets us use tilde as an escape char to avoid md5 hashes
|
|
// The choice of character is arbitray; anything that isn't
|
|
// magic in Markdown will work.
|
|
text = text.replace(/~/g, "~T");
|
|
|
|
// attacklab: Replace $ with ~D
|
|
// RegExp interprets $ as a special character
|
|
// when it's in a replacement string
|
|
text = text.replace(/\$/g, "~D");
|
|
|
|
// Standardize line endings
|
|
text = text.replace(/\r\n/g, "\n"); // DOS to Unix
|
|
text = text.replace(/\r/g, "\n"); // Mac to Unix
|
|
// Make sure text begins and ends with a couple of newlines:
|
|
text = "\n\n" + text + "\n\n";
|
|
|
|
// Convert all tabs to spaces.
|
|
text = _Detab(text);
|
|
|
|
// Strip any lines consisting only of spaces and tabs.
|
|
// This makes subsequent regexen easier to write, because we can
|
|
// match consecutive blank lines with /\n+/ instead of something
|
|
// contorted like /[ \t]*\n+/ .
|
|
text = text.replace(/^[ \t]+$/mg, "");
|
|
|
|
// Turn block-level HTML blocks into hash entries
|
|
text = _HashHTMLBlocks(text);
|
|
|
|
// Strip link definitions, store in hashes.
|
|
text = _StripLinkDefinitions(text);
|
|
|
|
text = _RunBlockGamut(text);
|
|
|
|
text = _UnescapeSpecialChars(text);
|
|
|
|
// attacklab: Restore dollar signs
|
|
text = text.replace(/~D/g, "$$");
|
|
|
|
// attacklab: Restore tildes
|
|
text = text.replace(/~T/g, "~");
|
|
|
|
// ** GFM ** Auto-link URLs and emails
|
|
text = text.replace(/https?\:\/\/[^"\s<>]*[^.,;'">\:\s<>\)\]\!]/g, function (wholeMatch, matchIndex){
|
|
var left = text.slice(Math.max(0,text.lastIndexOf('\n',matchIndex)), matchIndex);
|
|
var right = text.slice(matchIndex);
|
|
if (left.match(/<([a-z]+)\s[^>]+>?$/) && right.match(/^[^>]*>/)) {return wholeMatch;}
|
|
return "<a href='" + wholeMatch + "'>" + wholeMatch + "</a>";
|
|
});
|
|
text = text.replace(/[a-z0-9_\-+=.]+@[a-z0-9\-]+(\.[a-z0-9\-]+)+/ig, function (wholeMatch, m1, matchIndex) {
|
|
var left = text.slice(Math.max(0,text.lastIndexOf('\n',matchIndex)), matchIndex);
|
|
if (left.match(/<([a-z]+)\s[^>]+>?$/) || left.match(/mailto\:$/)) {return wholeMatch;}
|
|
return "<a href='mailto:" + wholeMatch + "'>" + wholeMatch + "</a>";
|
|
});
|
|
|
|
|
|
return text;
|
|
};
|
|
|
|
var _StripLinkDefinitions = function (text) {
|
|
//
|
|
// Strips link definitions from text, stores the URLs and titles in
|
|
// hash references.
|
|
//
|
|
// Link defs are in the form: ^[id]: url "optional title"
|
|
/*
|
|
var text = text.replace(/
|
|
^[ ]{0,3}\[(.+)\]: // id = $1 attacklab: g_tab_width - 1
|
|
[ \t]*
|
|
\n? // maybe *one* newline
|
|
[ \t]*
|
|
<?(\S+?)>? // url = $2
|
|
[ \t]*
|
|
\n? // maybe one newline
|
|
[ \t]*
|
|
(?:
|
|
(\n*) // any lines skipped = $3 attacklab: lookbehind removed
|
|
["(]
|
|
(.+?) // title = $4
|
|
[")]
|
|
[ \t]*
|
|
)? // title is optional
|
|
(?:\n+|$)
|
|
/gm,
|
|
function(){...});
|
|
*/
|
|
text = text.replace(/^[ ]{0,3}\[(.+)\]:[ \t]*\n?[ \t]*<?(\S+?)>?[ \t]*\n?[ \t]*(?:(\n*)["(](.+?)[")][ \t]*)?(?:\n+)/gm, function (wholeMatch, m1, m2, m3, m4) {
|
|
m1 = m1.toLowerCase();
|
|
g_urls[m1] = _EncodeAmpsAndAngles(m2); // Link IDs are case-insensitive
|
|
if (m3) {
|
|
// Oops, found blank lines, so it's not a title.
|
|
// Put back the parenthetical statement we stole.
|
|
return m3 + m4;
|
|
} else if (m4) {
|
|
g_titles[m1] = m4.replace(/"/g, """);
|
|
}
|
|
|
|
// Completely remove the definition from the text
|
|
return "";
|
|
});
|
|
|
|
return text;
|
|
};
|
|
|
|
var _HashHTMLBlocks = function (text) {
|
|
// attacklab: Double up blank lines to reduce lookaround
|
|
text = text.replace(/\n/g, "\n\n");
|
|
|
|
// Hashify HTML blocks:
|
|
// We only want to do this for block-level HTML tags, such as headers,
|
|
// lists, and tables. That's because we still want to wrap <p>s around
|
|
// "paragraphs" that are wrapped in non-block-level tags, such as anchors,
|
|
// phrase emphasis, and spans. The list of tags we're looking for is
|
|
// hard-coded:
|
|
var block_tags_a = "p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math|ins|del";
|
|
var block_tags_b = "p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math";
|
|
|
|
// First, look for nested blocks, e.g.:
|
|
// <div>
|
|
// <div>
|
|
// tags for inner block must be indented.
|
|
// </div>
|
|
// </div>
|
|
//
|
|
// The outermost tags must start at the left margin for this to match, and
|
|
// the inner nested divs must be indented.
|
|
// We need to do this before the next, more liberal match, because the next
|
|
// match will start at the first `<div>` and stop at the first `</div>`.
|
|
// attacklab: This regex can be expensive when it fails.
|
|
/*
|
|
var text = text.replace(/
|
|
( // save in $1
|
|
^ // start of line (with /m)
|
|
<($block_tags_a) // start tag = $2
|
|
\b // word break
|
|
// attacklab: hack around khtml/pcre bug...
|
|
[^\r]*?\n // any number of lines, minimally matching
|
|
</\2> // the matching end tag
|
|
[ \t]* // trailing spaces/tabs
|
|
(?=\n+) // followed by a newline
|
|
) // attacklab: there are sentinel newlines at end of document
|
|
/gm,function(){...}};
|
|
*/
|
|
text = text.replace(/^(<(p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math|ins|del)\b[^\r]*?\n<\/\2>[ \t]*(?=\n+))/gm, hashElement);
|
|
|
|
//
|
|
// Now match more liberally, simply from `\n<tag>` to `</tag>\n`
|
|
//
|
|
/*
|
|
var text = text.replace(/
|
|
( // save in $1
|
|
^ // start of line (with /m)
|
|
<($block_tags_b) // start tag = $2
|
|
\b // word break
|
|
// attacklab: hack around khtml/pcre bug...
|
|
[^\r]*? // any number of lines, minimally matching
|
|
.*</\2> // the matching end tag
|
|
[ \t]* // trailing spaces/tabs
|
|
(?=\n+) // followed by a newline
|
|
) // attacklab: there are sentinel newlines at end of document
|
|
/gm,function(){...}};
|
|
*/
|
|
text = text.replace(/^(<(p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math)\b[^\r]*?.*<\/\2>[ \t]*(?=\n+)\n)/gm, hashElement);
|
|
|
|
// Special case just for <hr />. It was easier to make a special case than
|
|
// to make the other regex more complicated.
|
|
/*
|
|
text = text.replace(/
|
|
( // save in $1
|
|
\n\n // Starting after a blank line
|
|
[ ]{0,3}
|
|
(<(hr) // start tag = $2
|
|
\b // word break
|
|
([^<>])*? //
|
|
\/?>) // the matching end tag
|
|
[ \t]*
|
|
(?=\n{2,}) // followed by a blank line
|
|
)
|
|
/g,hashElement);
|
|
*/
|
|
text = text.replace(/(\n[ ]{0,3}(<(hr)\b([^<>])*?\/?>)[ \t]*(?=\n{2,}))/g, hashElement);
|
|
|
|
// Special case for standalone HTML comments:
|
|
/*
|
|
text = text.replace(/
|
|
( // save in $1
|
|
\n\n // Starting after a blank line
|
|
[ ]{0,3} // attacklab: g_tab_width - 1
|
|
<!
|
|
(--[^\r]*?--\s*)+
|
|
>
|
|
[ \t]*
|
|
(?=\n{2,}) // followed by a blank line
|
|
)
|
|
/g,hashElement);
|
|
*/
|
|
text = text.replace(/(\n\n[ ]{0,3}<!(--[^\r]*?--\s*)+>[ \t]*(?=\n{2,}))/g, hashElement);
|
|
|
|
// PHP and ASP-style processor instructions (<?...?> and <%...%>)
|
|
/*
|
|
text = text.replace(/
|
|
(?:
|
|
\n\n // Starting after a blank line
|
|
)
|
|
( // save in $1
|
|
[ ]{0,3} // attacklab: g_tab_width - 1
|
|
(?:
|
|
<([?%]) // $2
|
|
[^\r]*?
|
|
\2>
|
|
)
|
|
[ \t]*
|
|
(?=\n{2,}) // followed by a blank line
|
|
)
|
|
/g,hashElement);
|
|
*/
|
|
text = text.replace(/(?:\n\n)([ ]{0,3}(?:<([?%])[^\r]*?\2>)[ \t]*(?=\n{2,}))/g, hashElement);
|
|
|
|
// attacklab: Undo double lines (see comment at top of this function)
|
|
text = text.replace(/\n\n/g, "\n");
|
|
return text;
|
|
};
|
|
|
|
var hashElement = function (wholeMatch, m1) {
|
|
var blockText = m1;
|
|
|
|
// Undo double lines
|
|
blockText = blockText.replace(/\n\n/g, "\n");
|
|
blockText = blockText.replace(/^\n/, "");
|
|
|
|
// strip trailing blank lines
|
|
blockText = blockText.replace(/\n+$/g, "");
|
|
|
|
// Replace the element text with a marker ("~KxK" where x is its key)
|
|
blockText = "\n\n~K" + (g_html_blocks.push(blockText) - 1) + "K\n\n";
|
|
|
|
return blockText;
|
|
};
|
|
|
|
var _RunBlockGamut = function (text) {
|
|
//
|
|
// These are all the transformations that form block-level
|
|
// tags like paragraphs, headers, and list items.
|
|
//
|
|
text = _DoHeaders(text);
|
|
|
|
// Do Horizontal Rules:
|
|
var key = hashBlock("<hr />");
|
|
text = text.replace(/^[ ]{0,2}([ ]?\*[ ]?){3,}[ \t]*$/gm, key);
|
|
text = text.replace(/^[ ]{0,2}([ ]?\-[ ]?){3,}[ \t]*$/gm, key);
|
|
text = text.replace(/^[ ]{0,2}([ ]?\_[ ]?){3,}[ \t]*$/gm, key);
|
|
|
|
text = _DoLists(text);
|
|
text = _DoCodeBlocks(text);
|
|
text = _DoBlockQuotes(text);
|
|
|
|
// We already ran _HashHTMLBlocks() before, in Markdown(), but that
|
|
// was to escape raw HTML in the original Markdown source. This time,
|
|
// we're escaping the markup we've just created, so that we don't wrap
|
|
// <p> tags around block-level tags.
|
|
text = _HashHTMLBlocks(text);
|
|
text = _FormParagraphs(text);
|
|
|
|
return text;
|
|
};
|
|
|
|
|
|
var _RunSpanGamut = function (text) {
|
|
//
|
|
// These are all the transformations that occur *within* block-level
|
|
// tags like paragraphs, headers, and list items.
|
|
//
|
|
text = _DoCodeSpans(text);
|
|
text = _EscapeSpecialCharsWithinTagAttributes(text);
|
|
text = _EncodeBackslashEscapes(text);
|
|
|
|
// Process anchor and image tags. Images must come first,
|
|
// because ![foo][f] looks like an anchor.
|
|
text = _DoImages(text);
|
|
text = _DoAnchors(text);
|
|
|
|
// Make links out of things like `<http://example.com/>`
|
|
// Must come after _DoAnchors(), because you can use < and >
|
|
// delimiters in inline links like [this](<url>).
|
|
text = _DoAutoLinks(text);
|
|
text = _EncodeAmpsAndAngles(text);
|
|
text = _ConvertExtraSpecialCharacters(text);
|
|
text = _DoItalicsAndBold(text);
|
|
|
|
// Do hard breaks:
|
|
text = text.replace(/ {2,}\n/g, " <br />\n");
|
|
|
|
return text;
|
|
};
|
|
|
|
var _EscapeSpecialCharsWithinTagAttributes = function (text) {
|
|
//
|
|
// Within tags -- meaning between < and > -- encode [\ ` * _] so they
|
|
// don't conflict with their use in Markdown for code, italics and strong.
|
|
//
|
|
// Build a regex to find HTML tags and comments. See Friedl's
|
|
// "Mastering Regular Expressions", 2nd Ed., pp. 200-201.
|
|
var regex = /(<[a-z\/!$]("[^"]*"|'[^']*'|[^'">])*>|<!(--.*?--\s*)+>)/gi;
|
|
|
|
text = text.replace(regex, function (wholeMatch) {
|
|
var tag = wholeMatch.replace(/(.)<\/?code>(?=.)/g, "$1`");
|
|
tag = escapeCharacters(tag, "\\`*_");
|
|
return tag;
|
|
});
|
|
|
|
return text;
|
|
};
|
|
|
|
var _DoAnchors = function (text) {
|
|
//
|
|
// Turn Markdown link shortcuts into XHTML <a> tags.
|
|
//
|
|
//
|
|
// First, handle reference-style links: [link text] [id]
|
|
//
|
|
/*
|
|
text = text.replace(/
|
|
( // wrap whole match in $1
|
|
\[
|
|
(
|
|
(?:
|
|
\[[^\]]*\] // allow brackets nested one level
|
|
|
|
|
[^\[] // or anything else
|
|
)*
|
|
)
|
|
\]
|
|
|
|
[ ]? // one optional space
|
|
(?:\n[ ]*)? // one optional newline followed by spaces
|
|
|
|
\[
|
|
(.*?) // id = $3
|
|
\]
|
|
)()()()() // pad remaining backreferences
|
|
/g,_DoAnchors_callback);
|
|
*/
|
|
text = text.replace(/(\[((?:\[[^\]]*\]|[^\[\]])*)\][ ]?(?:\n[ ]*)?\[(.*?)\])()()()()/g, writeAnchorTag);
|
|
|
|
//
|
|
// Next, inline-style links: [link text](url "optional title")
|
|
//
|
|
/*
|
|
text = text.replace(/
|
|
( // wrap whole match in $1
|
|
\[
|
|
(
|
|
(?:
|
|
\[[^\]]*\] // allow brackets nested one level
|
|
|
|
|
[^\[\]] // or anything else
|
|
)
|
|
)
|
|
\]
|
|
\( // literal paren
|
|
[ \t]*
|
|
() // no id, so leave $3 empty
|
|
<?(.*?)>? // href = $4
|
|
[ \t]*
|
|
( // $5
|
|
(['"]) // quote char = $6
|
|
(.*?) // Title = $7
|
|
\6 // matching quote
|
|
[ \t]* // ignore any spaces/tabs between closing quote and )
|
|
)? // title is optional
|
|
\)
|
|
)
|
|
/g,writeAnchorTag);
|
|
*/
|
|
text = text.replace(/(\[((?:\[[^\]]*\]|[^\[\]])*)\]\([ \t]*()<?(.*?)>?[ \t]*((['"])(.*?)\6[ \t]*)?\))/g, writeAnchorTag);
|
|
|
|
//
|
|
// Last, handle reference-style shortcuts: [link text]
|
|
// These must come last in case you've also got [link test][1]
|
|
// or [link test](/foo)
|
|
//
|
|
/*
|
|
text = text.replace(/
|
|
( // wrap whole match in $1
|
|
\[
|
|
([^\[\]]+) // link text = $2; can't contain '[' or ']'
|
|
\]
|
|
)()()()()() // pad rest of backreferences
|
|
/g, writeAnchorTag);
|
|
*/
|
|
text = text.replace(/(\[([^\[\]]+)\])()()()()()/g, writeAnchorTag);
|
|
|
|
return text;
|
|
};
|
|
|
|
var writeAnchorTag = function (wholeMatch, m1, m2, m3, m4, m5, m6, m7) {
|
|
if (m7 === undefined) m7 = "";
|
|
var whole_match = m1;
|
|
var link_text = m2;
|
|
var link_id = m3.toLowerCase();
|
|
var url = m4;
|
|
var title = m7;
|
|
var blank_target = false;
|
|
|
|
if (url === "") {
|
|
if (link_id === "") {
|
|
// lower-case and turn embedded newlines into spaces
|
|
link_id = link_text.toLowerCase().replace(/ ?\n/g, " ");
|
|
} else {
|
|
if (link_id[0]=="!") {
|
|
blank_target = true;
|
|
link_id = link_id.substr(1);
|
|
}
|
|
}
|
|
url = "#" + link_id;
|
|
|
|
if (g_urls[link_id] !== undefined) {
|
|
url = g_urls[link_id];
|
|
if (g_titles[link_id] !== undefined) {
|
|
title = g_titles[link_id];
|
|
}
|
|
if (url[0]=="!") {
|
|
blank_target = true;
|
|
url = url.substr(1);
|
|
}
|
|
}
|
|
else {
|
|
if (whole_match.search(/\(\s*\)$/m) > -1) {
|
|
// Special case for explicit empty url
|
|
url = "";
|
|
} else {
|
|
return whole_match;
|
|
}
|
|
}
|
|
} else {
|
|
if (url[0]=="!") {
|
|
blank_target = true;
|
|
url = url.substr(1);
|
|
}
|
|
}
|
|
|
|
url = escapeCharacters(url, "*_");
|
|
var result = "<a href=\"" + url + "\"";
|
|
|
|
if (title !== "") {
|
|
title = title.replace(/"/g, """);
|
|
title = escapeCharacters(title, "*_");
|
|
result += " title=\"" + title + "\"";
|
|
}
|
|
|
|
if (blank_target) {
|
|
result += " target=\"_blank\"";
|
|
}
|
|
|
|
result += ">" + link_text + "</a>";
|
|
|
|
return result;
|
|
};
|
|
|
|
|
|
var _DoImages = function (text) {
|
|
//
|
|
// Turn Markdown image shortcuts into <img> tags.
|
|
//
|
|
//
|
|
// First, handle reference-style labeled images: ![alt text][id]
|
|
//
|
|
/*
|
|
text = text.replace(/
|
|
( // wrap whole match in $1
|
|
!\[
|
|
(.*?) // alt text = $2
|
|
\]
|
|
|
|
[ ]? // one optional space
|
|
(?:\n[ ]*)? // one optional newline followed by spaces
|
|
|
|
\[
|
|
(.*?) // id = $3
|
|
\]
|
|
)()()()() // pad rest of backreferences
|
|
/g,writeImageTag);
|
|
*/
|
|
text = text.replace(/(!\[(.*?)\][ ]?(?:\n[ ]*)?\[(.*?)\])()()()()/g, writeImageTag);
|
|
|
|
//
|
|
// Next, handle inline images: 
|
|
// Don't forget: encode * and _
|
|
/*
|
|
text = text.replace(/
|
|
( // wrap whole match in $1
|
|
!\[
|
|
(.*?) // alt text = $2
|
|
\]
|
|
\s? // One optional whitespace character
|
|
\( // literal paren
|
|
[ \t]*
|
|
() // no id, so leave $3 empty
|
|
<?(\S+?)>? // src url = $4
|
|
[ \t]*
|
|
( // $5
|
|
(['"]) // quote char = $6
|
|
(.*?) // title = $7
|
|
\6 // matching quote
|
|
[ \t]*
|
|
)? // title is optional
|
|
\)
|
|
)
|
|
/g,writeImageTag);
|
|
*/
|
|
text = text.replace(/(!\[(.*?)\]\s?\([ \t]*()<?(\S+?)>?[ \t]*((['"])(.*?)\6[ \t]*)?\))/g, writeImageTag);
|
|
|
|
return text;
|
|
};
|
|
|
|
var writeImageTag = function (wholeMatch, m1, m2, m3, m4, m5, m6, m7) {
|
|
var whole_match = m1;
|
|
var alt_text = m2;
|
|
var link_id = m3.toLowerCase();
|
|
var url = m4;
|
|
var title = m7;
|
|
|
|
if (!title) title = "";
|
|
|
|
if (url === "") {
|
|
if (link_id === "") {
|
|
// lower-case and turn embedded newlines into spaces
|
|
link_id = alt_text.toLowerCase().replace(/ ?\n/g, " ");
|
|
}
|
|
url = "#" + link_id;
|
|
|
|
if (g_urls[link_id] !== undefined) {
|
|
url = g_urls[link_id];
|
|
if (g_titles[link_id] !== undefined) {
|
|
title = g_titles[link_id];
|
|
}
|
|
}
|
|
else {
|
|
return whole_match;
|
|
}
|
|
}
|
|
|
|
alt_text = alt_text.replace(/"/g, """);
|
|
url = escapeCharacters(url, "*_");
|
|
var result = "<img src=\"" + url + "\" alt=\"" + alt_text + "\"";
|
|
|
|
// attacklab: Markdown.pl adds empty title attributes to images.
|
|
// Replicate this bug.
|
|
//if (title != "") {
|
|
title = title.replace(/"/g, """);
|
|
title = escapeCharacters(title, "*_");
|
|
result += " title=\"" + title + "\"";
|
|
//}
|
|
result += " />";
|
|
|
|
return result;
|
|
};
|
|
|
|
|
|
var _DoHeaders = function (text) {
|
|
|
|
// Setext-style headers:
|
|
// Header 1
|
|
// ========
|
|
//
|
|
// Header 2
|
|
// --------
|
|
//
|
|
text = text.replace(/^(.+)[ \t]*\n=+[ \t]*\n+/gm, function (wholeMatch, m1) {
|
|
return hashBlock("<h1>" + _RunSpanGamut(m1) + "</h1>");
|
|
});
|
|
|
|
text = text.replace(/^(.+)[ \t]*\n-+[ \t]*\n+/gm, function (matchFound, m1) {
|
|
return hashBlock("<h2>" + _RunSpanGamut(m1) + "</h2>");
|
|
});
|
|
|
|
// atx-style headers:
|
|
// # Header 1
|
|
// ## Header 2
|
|
// ## Header 2 with closing hashes ##
|
|
// ...
|
|
// ###### Header 6
|
|
//
|
|
/*
|
|
text = text.replace(/
|
|
^(\#{1,6}) // $1 = string of #'s
|
|
[ \t]*
|
|
(.+?) // $2 = Header text
|
|
[ \t]*
|
|
\#* // optional closing #'s (not counted)
|
|
\n+
|
|
/gm, function() {...});
|
|
*/
|
|
|
|
text = text.replace(/^(\#{1,6})[ \t]*(.+?)[ \t]*\#*\n+/gm, function (wholeMatch, m1, m2) {
|
|
var h_level = m1.length;
|
|
return hashBlock("<h" + h_level + ">" + _RunSpanGamut(m2) + "</h" + h_level + ">");
|
|
});
|
|
|
|
return text;
|
|
};
|
|
|
|
// This declaration keeps Dojo compressor from outputting garbage:
|
|
var _ProcessListItems;
|
|
|
|
var _DoLists = function (text) {
|
|
//
|
|
// Form HTML ordered (numbered) and unordered (bulleted) lists.
|
|
//
|
|
// attacklab: add sentinel to hack around khtml/safari bug:
|
|
// http://bugs.webkit.org/show_bug.cgi?id=11231
|
|
text += "~0";
|
|
|
|
// Re-usable pattern to match any entirel ul or ol list:
|
|
/*
|
|
var whole_list = /
|
|
( // $1 = whole list
|
|
( // $2
|
|
[ ]{0,3} // attacklab: g_tab_width - 1
|
|
([*+-]|\d+[.]) // $3 = first list item marker
|
|
[ \t]+
|
|
)
|
|
[^\r]+?
|
|
( // $4
|
|
~0 // sentinel for workaround; should be $
|
|
|
|
|
\n{2,}
|
|
(?=\S)
|
|
(?! // Negative lookahead for another list item marker
|
|
[ \t]*
|
|
(?:[*+-]|\d+[.])[ \t]+
|
|
)
|
|
)
|
|
)/g
|
|
*/
|
|
var whole_list = /^(([ ]{0,3}([*+\-]|\d+[.])[ \t]+)[^\r]+?(~0|\n{2,}(?=\S)(?![ \t]*(?:[*+\-]|\d+[.])[ \t]+)))/gm;
|
|
|
|
if (g_list_level) {
|
|
text = text.replace(whole_list, function (wholeMatch, m1, m2) {
|
|
var list = m1;
|
|
var list_type = (m2.search(/[*+\-]/g) > -1) ? "ul" : "ol";
|
|
|
|
// Turn double returns into triple returns, so that we can make a
|
|
// paragraph for the last item in a list, if necessary:
|
|
list = list.replace(/\n{2,}/g, "\n\n\n");
|
|
var result = _ProcessListItems(list);
|
|
|
|
// Trim any trailing whitespace, to put the closing `</$list_type>`
|
|
// up on the preceding line, to get it past the current stupid
|
|
// HTML block parser. This is a hack to work around the terrible
|
|
// hack that is the HTML block parser.
|
|
result = result.replace(/\s+$/, "");
|
|
result = "<" + list_type + ">" + result + "</" + list_type + ">\n";
|
|
return result;
|
|
});
|
|
} else {
|
|
whole_list = /(\n\n|^\n?)(([ ]{0,3}([*+\-]|\d+[.])[ \t]+)[^\r]+?(~0|\n{2,}(?=\S)(?![ \t]*(?:[*+\-]|\d+[.])[ \t]+)))/g;
|
|
text = text.replace(whole_list, function (wholeMatch, m1, m2, m3) {
|
|
var runup = m1;
|
|
var list = m2;
|
|
|
|
var list_type = (m3.search(/[*+\-]/g) > -1) ? "ul" : "ol";
|
|
// Turn double returns into triple returns, so that we can make a
|
|
// paragraph for the last item in a list, if necessary:
|
|
list = list.replace(/\n{2,}/g, "\n\n\n");
|
|
var result = _ProcessListItems(list);
|
|
result = runup + "<" + list_type + ">\n" + result + "</" + list_type + ">\n";
|
|
return result;
|
|
});
|
|
}
|
|
|
|
// attacklab: strip sentinel
|
|
text = text.replace(/~0/, "");
|
|
|
|
return text;
|
|
};
|
|
|
|
_ProcessListItems = function (list_str) {
|
|
//
|
|
// Process the contents of a single ordered or unordered list, splitting it
|
|
// into individual list items.
|
|
//
|
|
// The $g_list_level global keeps track of when we're inside a list.
|
|
// Each time we enter a list, we increment it; when we leave a list,
|
|
// we decrement. If it's zero, we're not in a list anymore.
|
|
//
|
|
// We do this because when we're not inside a list, we want to treat
|
|
// something like this:
|
|
//
|
|
// I recommend upgrading to version
|
|
// 8. Oops, now this line is treated
|
|
// as a sub-list.
|
|
//
|
|
// As a single paragraph, despite the fact that the second line starts
|
|
// with a digit-period-space sequence.
|
|
//
|
|
// Whereas when we're inside a list (or sub-list), that line will be
|
|
// treated as the start of a sub-list. What a kludge, huh? This is
|
|
// an aspect of Markdown's syntax that's hard to parse perfectly
|
|
// without resorting to mind-reading. Perhaps the solution is to
|
|
// change the syntax rules such that sub-lists must start with a
|
|
// starting cardinal number; e.g. "1." or "a.".
|
|
g_list_level++;
|
|
|
|
// trim trailing blank lines:
|
|
list_str = list_str.replace(/\n{2,}$/, "\n");
|
|
|
|
// attacklab: add sentinel to emulate \z
|
|
list_str += "~0";
|
|
|
|
/*
|
|
list_str = list_str.replace(/
|
|
(\n)? // leading line = $1
|
|
(^[ \t]*) // leading whitespace = $2
|
|
([*+-]|\d+[.]) [ \t]+ // list marker = $3
|
|
([^\r]+? // list item text = $4
|
|
(\n{1,2}))
|
|
(?= \n* (~0 | \2 ([*+-]|\d+[.]) [ \t]+))
|
|
/gm, function(){...});
|
|
*/
|
|
list_str = list_str.replace(/(\n)?(^[ \t]*)([*+\-]|\d+[.])[ \t]+([^\r]+?(\n{1,2}))(?=\n*(~0|\2([*+\-]|\d+[.])[ \t]+))/gm, function (wholeMatch, m1, m2, m3, m4) {
|
|
var item = m4;
|
|
var leading_line = m1;
|
|
var leading_space = m2;
|
|
|
|
if (leading_line || (item.search(/\n{2,}/) > -1)) {
|
|
item = _RunBlockGamut(_Outdent(item));
|
|
}
|
|
else {
|
|
// Recursion for sub-lists:
|
|
item = _DoLists(_Outdent(item));
|
|
item = item.replace(/\n$/, ""); // chomp(item)
|
|
item = _RunSpanGamut(item);
|
|
}
|
|
|
|
return "<li>" + item + "</li>\n";
|
|
});
|
|
|
|
// attacklab: strip sentinel
|
|
list_str = list_str.replace(/~0/g, "");
|
|
|
|
g_list_level--;
|
|
return list_str;
|
|
};
|
|
|
|
|
|
var _DoCodeBlocks = function (text) {
|
|
//
|
|
// Process Markdown `<pre><code>` blocks.
|
|
//
|
|
/*
|
|
text = text.replace(text,
|
|
/(?:\n\n|^)
|
|
( // $1 = the code block -- one or more lines, starting with a space/tab
|
|
(?:
|
|
(?:[ ]{4}|\t) // Lines must start with a tab or a tab-width of spaces - attacklab: g_tab_width
|
|
.*\n+
|
|
)+
|
|
)
|
|
(\n*[ ]{0,3}[^ \t\n]|(?=~0)) // attacklab: g_tab_width
|
|
/g,function(){...});
|
|
*/
|
|
|
|
// attacklab: sentinel workarounds for lack of \A and \Z, safari\khtml bug
|
|
text += "~0";
|
|
|
|
text = text.replace(/(?:\n\n|^)((?:(?:[ ]{4}|\t).*\n+)+)(\n*[ ]{0,3}[^ \t\n]|(?=~0))/g, function (wholeMatch, m1, m2) {
|
|
var codeblock = m1;
|
|
var nextChar = m2;
|
|
|
|
codeblock = _EncodeCode(_Outdent(codeblock));
|
|
codeblock = _Detab(codeblock);
|
|
codeblock = codeblock.replace(/^\n+/g, ""); // trim leading newlines
|
|
codeblock = codeblock.replace(/\n+$/g, ""); // trim trailing whitespace
|
|
codeblock = "<pre><code>" + codeblock + "\n</code></pre>";
|
|
|
|
return hashBlock(codeblock) + nextChar;
|
|
});
|
|
|
|
// attacklab: strip sentinel
|
|
text = text.replace(/~0/, "");
|
|
|
|
return text;
|
|
};
|
|
|
|
var hashBlock = function (text) {
|
|
text = text.replace(/(^\n+|\n+$)/g, "");
|
|
return "\n\n~K" + (g_html_blocks.push(text) - 1) + "K\n\n";
|
|
};
|
|
|
|
|
|
var _DoCodeSpans = function (text) {
|
|
//
|
|
// * Backtick quotes are used for <code></code> spans.
|
|
//
|
|
// * You can use multiple backticks as the delimiters if you want to
|
|
// include literal backticks in the code span. So, this input:
|
|
//
|
|
// Just type ``foo `bar` baz`` at the prompt.
|
|
//
|
|
// Will translate to:
|
|
//
|
|
// <p>Just type <code>foo `bar` baz</code> at the prompt.</p>
|
|
//
|
|
// There's no arbitrary limit to the number of backticks you
|
|
// can use as delimters. If you need three consecutive backticks
|
|
// in your code, use four for delimiters, etc.
|
|
//
|
|
// * You can use spaces to get literal backticks at the edges:
|
|
//
|
|
// ... type `` `bar` `` ...
|
|
//
|
|
// Turns to:
|
|
//
|
|
// ... type <code>`bar`</code> ...
|
|
//
|
|
/*
|
|
text = text.replace(/
|
|
(^|[^\\]) // Character before opening ` can't be a backslash
|
|
(`+) // $2 = Opening run of `
|
|
( // $3 = The code block
|
|
[^\r]*?
|
|
[^`] // attacklab: work around lack of lookbehind
|
|
)
|
|
\2 // Matching closer
|
|
(?!`)
|
|
/gm, function(){...});
|
|
*/
|
|
|
|
text = text.replace(/(^|[^\\])(`+)([^\r]*?[^`])\2(?!`)/gm, function (wholeMatch, m1, m2, m3, m4) {
|
|
var c = m3;
|
|
c = c.replace(/^([ \t]*)/g, ""); // leading whitespace
|
|
c = c.replace(/[ \t]*$/g, ""); // trailing whitespace
|
|
c = _EncodeCode(c);
|
|
return m1 + "<code>" + c + "</code>";
|
|
});
|
|
|
|
|
|
// Process ^^superscript^^ notation
|
|
text = text.replace(/(^|[^\\])(\^{2})([^\r]*?[^\^]{2})\2(?!\^)/gm, function (wholeMatch, m1, m2, m3, m4) {
|
|
var c = m3;
|
|
c = c.replace(/^([ \t]*)/g, ""); // leading whitespace
|
|
c = c.replace(/[ \t]*$/g, ""); // trailing whitespace
|
|
c = _EncodeCode(c);
|
|
return m1 + "<sup>" + c + "</sup>";
|
|
});
|
|
|
|
// Process ,,subscript,, notation
|
|
text = text.replace(/(^|[^\\])(,{2})([^\r]*?[^,]{2})\2(?!,)/gm, function (wholeMatch, m1, m2, m3, m4) {
|
|
var c = m3;
|
|
c = c.replace(/^([ \t]*)/g, ""); // leading whitespace
|
|
c = c.replace(/[ \t]*$/g, ""); // trailing whitespace
|
|
c = _EncodeCode(c);
|
|
return m1 + "<sub>" + c + "</sub>";
|
|
});
|
|
|
|
// Process ~~strike~~ notation
|
|
text = text.replace(/(^|[^\\])(~T~T)([^\r]*?[^~]{2})\2(?!~)/gm, function (wholeMatch, m1, m2, m3, m4) {
|
|
var c = m3;
|
|
c = c.replace(/^([ \t]*)/g, ""); // leading whitespace
|
|
c = c.replace(/[ \t]*$/g, ""); // trailing whitespace
|
|
c = _EncodeCode(c);
|
|
return m1 + "<strike>" + c + "</strike>";
|
|
});
|
|
|
|
return text;
|
|
};
|
|
|
|
|
|
var _EncodeCode = function (text) {
|
|
//
|
|
// Encode/escape certain characters inside Markdown code runs.
|
|
// The point is that in code, these characters are literals,
|
|
// and lose their special Markdown meanings.
|
|
//
|
|
// Encode all ampersands; HTML entities are not
|
|
// entities within a Markdown code span.
|
|
text = text.replace(/&/g, "&");
|
|
|
|
// Do the angle bracket song and dance:
|
|
text = text.replace(/</g, "<");
|
|
text = text.replace(/>/g, ">");
|
|
|
|
// Encode "smart" quotes
|
|
text = text.
|
|
replace( /\u2026/g , '…').
|
|
replace( /\u00AB/g , '«' ).
|
|
replace( /\u00BB/g , '»' ).
|
|
replace( /\u201C/g , '“' ).
|
|
replace( /\u201D/g , '”' ).
|
|
replace( /\u2018/g , '‘' ).
|
|
replace( /\u2019/g , '’' ).
|
|
replace( /\u2014/g , '—' ).
|
|
replace( /\u2013/g , '–' ).
|
|
replace( /\u2022/g , '•' ).
|
|
replace( /\u2122/g , '™' ).
|
|
replace( /\u00A9/g , '©' ).
|
|
replace( /\u00AE/g , '®' );
|
|
|
|
|
|
// Now, escape characters that are magic in Markdown:
|
|
text = escapeCharacters(text, "*_{}[]\\", false);
|
|
|
|
// jj the line above breaks this:
|
|
//---
|
|
//* Item
|
|
// 1. Subitem
|
|
// special char: *
|
|
//---
|
|
return text;
|
|
};
|
|
|
|
|
|
var _DoItalicsAndBold = function (text) {
|
|
|
|
if (true) { //eventually this will be replaced with a runtime option. But for now we're forcing it.
|
|
text = text.replace(/(\*\*)(?=\S)([^\r]*?\S[*]*)\1/g, "<strong>$2</strong>");
|
|
text = text.replace(/(\w)_(\w)/g, "$1~E95E$2"); // ** GFM ** "~E95E" == escaped "_"
|
|
text = text.replace(/(\*)(?=\S)([^\r]*?\S)\1/g, "<em>$2</em>");
|
|
text = text.replace(/(_)(?=\S)([^\r]*?\S)\1/g, "<u>$2</u>");
|
|
} else {
|
|
// <strong> must go first:
|
|
text = text.replace(/(\*\*|__)(?=\S)([^\r]*?\S[*_]*)\1/g, "<strong>$2</strong>");
|
|
|
|
text = text.replace(/(\w)_(\w)/g, "$1~E95E$2"); // ** GFM ** "~E95E" == escaped "_"
|
|
text = text.replace(/(\*|_)(?=\S)([^\r]*?\S)\1/g, "<em>$2</em>");
|
|
}
|
|
|
|
return text;
|
|
};
|
|
|
|
|
|
var _DoBlockQuotes = function (text) {
|
|
|
|
/*
|
|
text = text.replace(/
|
|
( // Wrap whole match in $1
|
|
(
|
|
^[ \t]*>[ \t]? // '>' at the start of a line
|
|
.+\n // rest of the first line
|
|
(.+\n)* // subsequent consecutive lines
|
|
\n* // blanks
|
|
)+
|
|
)
|
|
/gm, function(){...});
|
|
*/
|
|
|
|
text = text.replace(/((^[ \t]*>[ \t]?.+\n(.+\n)*\n*)+)/gm, function (wholeMatch, m1) {
|
|
var bq = m1;
|
|
|
|
// attacklab: hack around Konqueror 3.5.4 bug:
|
|
// "----------bug".replace(/^-/g,"") == "bug"
|
|
bq = bq.replace(/^[ \t]*>[ \t]?/gm, "~0"); // trim one level of quoting
|
|
// attacklab: clean up hack
|
|
bq = bq.replace(/~0/g, "");
|
|
|
|
bq = bq.replace(/^[ \t]+$/gm, ""); // trim whitespace-only lines
|
|
bq = _RunBlockGamut(bq); // recurse
|
|
bq = bq.replace(/(^|\n)/g, "$1 ");
|
|
// These leading spaces screw with <pre> content, so we need to fix that:
|
|
bq = bq.replace(/(\s*<pre>[^\r]+?<\/pre>)/gm, function (wholeMatch, m1) {
|
|
var pre = m1;
|
|
// attacklab: hack around Konqueror 3.5.4 bug:
|
|
pre = pre.replace(/^ {2}/mg, "~0");
|
|
pre = pre.replace(/~0/g, "");
|
|
return pre;
|
|
});
|
|
|
|
return hashBlock("<blockquote>\n" + bq + "\n</blockquote>");
|
|
});
|
|
return text;
|
|
};
|
|
|
|
|
|
var _FormParagraphs = function (text) {
|
|
//
|
|
// Params:
|
|
// $text - string to process with html <p> tags
|
|
//
|
|
// Strip leading and trailing lines:
|
|
text = text.replace(/^\n+/g, "");
|
|
text = text.replace(/\n+$/g, "");
|
|
|
|
var i;
|
|
var grafs = text.split(/\n{2,}/g);
|
|
var grafsOut = [];
|
|
|
|
//
|
|
// Wrap <p> tags.
|
|
//
|
|
var end = grafs.length;
|
|
for (i = 0; i < end; i++) {
|
|
var str = grafs[i];
|
|
var p_tag = '<p>';
|
|
|
|
// if this is an HTML marker, copy it
|
|
if (str.search(/~K(\d+)K/g) >= 0) {
|
|
grafsOut.push(str);
|
|
}
|
|
else if (str.search(/\S/) >= 0) {
|
|
str = _RunSpanGamut(str);
|
|
|
|
if (str.substr(0,2)==='->') {
|
|
if (str.substr(-5)==='<-') {
|
|
p_tag = '<p align="center">';
|
|
str = str.slice(2,-5);
|
|
} else {
|
|
p_tag = '<p align="right">';
|
|
str = str.substring(2);
|
|
}
|
|
}
|
|
|
|
str = str.replace(/\n/g, "<br />"); // ** GFM **
|
|
str = str.replace(/^([ \t]*)/g, p_tag);
|
|
str += "</p>";
|
|
grafsOut.push(str);
|
|
}
|
|
|
|
}
|
|
|
|
//
|
|
// Unhashify HTML blocks
|
|
//
|
|
end = grafsOut.length;
|
|
for (i = 0; i < end; i++) {
|
|
// if this is a marker for an html block...
|
|
while (grafsOut[i].search(/~K(\d+)K/) >= 0) {
|
|
var blockText = g_html_blocks[RegExp.$1];
|
|
blockText = blockText.replace(/\$/g, "$$$$"); // Escape any dollar signs
|
|
grafsOut[i] = grafsOut[i].replace(/~K\d+K/, blockText);
|
|
}
|
|
}
|
|
|
|
return grafsOut.join("\n\n");
|
|
};
|
|
|
|
|
|
var _EncodeAmpsAndAngles = function (text) {
|
|
// Smart processing for ampersands and angle brackets that need to be encoded.
|
|
// Ampersand-encoding based entirely on Nat Irons's Amputator MT plugin:
|
|
// http://bumppo.net/projects/amputator/
|
|
text = text.replace(/&(?!#?[xX]?(?:[0-9a-fA-F]+|\w+);)/g, "&");
|
|
|
|
// Encode naked <'s
|
|
text = text.replace(/<(?![a-z\/?\$!])/gi, "<");
|
|
|
|
// Encode "smart" quotes
|
|
text = text.
|
|
replace( /\u2026/g , '…').
|
|
replace( /\u00AB/g , '«' ).
|
|
replace( /\u00BB/g , '»' ).
|
|
replace( /\u201C/g , '“' ).
|
|
replace( /\u201D/g , '”' ).
|
|
replace( /\u2018/g , '‘' ).
|
|
replace( /\u2019/g , '’' ).
|
|
replace( /\u2014/g , '—' ).
|
|
replace( /\u2013/g , '–' ).
|
|
replace( /\u2022/g , '•' ).
|
|
replace( /\u2122/g , '™' ).
|
|
replace( /\u00A9/g , '©' ).
|
|
replace( /\u00AE/g , '®' );
|
|
|
|
return text;
|
|
};
|
|
|
|
var _ConvertExtraSpecialCharacters = function (text) {
|
|
// Processing to change various special character combinations into
|
|
// common real characters.
|
|
|
|
text = text.
|
|
replace( /\.\.\./g , '…').
|
|
replace( /\(c\)/g , '©').
|
|
replace( /\(r\)/g , '®').
|
|
replace( /\(tm\)/g , '™').
|
|
replace( /\-\-/g, '—');
|
|
|
|
return text;
|
|
};
|
|
|
|
|
|
var _EncodeBackslashEscapes = function (text) {
|
|
//
|
|
// Parameter: String.
|
|
// Returns: The string, with after processing the following backslash
|
|
// escape sequences.
|
|
//
|
|
// attacklab: The polite way to do this is with the new
|
|
// escapeCharacters() function:
|
|
//
|
|
// text = escapeCharacters(text,"\\",true);
|
|
// text = escapeCharacters(text,"`*_{}[]()>#+-.!",true);
|
|
//
|
|
// ...but we're sidestepping its use of the (slow) RegExp constructor
|
|
// as an optimization for Firefox. This function gets called a LOT.
|
|
text = text.replace(/\\(\\)/g, escapeCharacters_callback);
|
|
text = text.replace(/\\([`*_{}\[\]()>#+-.!])/g, escapeCharacters_callback);
|
|
return text;
|
|
};
|
|
|
|
|
|
var _DoAutoLinks = function (text) {
|
|
|
|
text = text.replace(/(?:")<((https?|ftp|dict):[^'">\s]+)>/gi, "<a href=\"$1\">$1</a>");
|
|
|
|
// Email addresses: <address@domain.foo>
|
|
/*
|
|
text = text.replace(/
|
|
<
|
|
(?:mailto:)?
|
|
(
|
|
[-.\w]+
|
|
\@
|
|
[-a-z0-9]+(\.[-a-z0-9]+)*\.[a-z]+
|
|
)
|
|
>
|
|
/gi, _DoAutoLinks_callback());
|
|
*/
|
|
text = text.replace(/<(?:mailto:)?([\-.\w]+\@[\-a-z0-9]+(\.[\-a-z0-9]+)*\.[a-z]+)>/gi, function (wholeMatch, m1) {
|
|
return _EncodeEmailAddress(_UnescapeSpecialChars(m1));
|
|
});
|
|
|
|
return text;
|
|
};
|
|
|
|
|
|
var _EncodeEmailAddress = function (addr) {
|
|
//
|
|
// Input: an email address, e.g. "foo@example.com"
|
|
//
|
|
// Output: the email address as a mailto link, with each character
|
|
// of the address encoded as either a decimal or hex entity, in
|
|
// the hopes of foiling most address harvesting spam bots. E.g.:
|
|
//
|
|
// <a href="mailto:foo@e
|
|
// xample.com">foo
|
|
// @example.com</a>
|
|
//
|
|
// Based on a filter by Matthew Wickline, posted to the BBEdit-Talk
|
|
// mailing list: <http://tinyurl.com/yu7ue>
|
|
//
|
|
// attacklab: why can't javascript speak hex?
|
|
|
|
|
|
function char2hex(ch) {
|
|
var hexDigits = '0123456789ABCDEF';
|
|
var dec = ch.charCodeAt(0);
|
|
return (hexDigits.charAt(dec >> 4) + hexDigits.charAt(dec & 15));
|
|
}
|
|
|
|
var encode = [
|
|
function (ch) {
|
|
return "&#" + ch.charCodeAt(0) + ";";},
|
|
function (ch) {
|
|
return "&#x" + char2hex(ch) + ";";},
|
|
function (ch) {
|
|
return ch;}
|
|
];
|
|
|
|
addr = "mailto:" + addr;
|
|
|
|
addr = addr.replace(/./g, function (ch) {
|
|
if (ch == "@") {
|
|
// this *must* be encoded. I insist.
|
|
ch = encode[Math.floor(Math.random() * 2)](ch);
|
|
} else if (ch != ":") {
|
|
// leave ':' alone (to spot mailto: later)
|
|
var r = Math.random();
|
|
// roughly 10% raw, 45% hex, 45% dec
|
|
ch = (
|
|
r > 0.9 ? encode[2](ch) : r > 0.45 ? encode[1](ch) : encode[0](ch));
|
|
}
|
|
return ch;
|
|
});
|
|
|
|
addr = "<a href=\"" + addr + "\">" + addr + "</a>";
|
|
addr = addr.replace(/">.+:/g, "\">"); // strip the mailto: from the visible part
|
|
return addr;
|
|
};
|
|
|
|
|
|
var _UnescapeSpecialChars = function (text) {
|
|
//
|
|
// Swap back in all the special characters we've hidden.
|
|
//
|
|
text = text.replace(/~E(\d+)E/g, function (wholeMatch, m1) {
|
|
var charCodeToReplace = parseInt(m1,10);
|
|
return String.fromCharCode(charCodeToReplace);
|
|
});
|
|
return text;
|
|
};
|
|
|
|
|
|
var _Outdent = function (text) {
|
|
//
|
|
// Remove one level of line-leading tabs or spaces
|
|
//
|
|
// attacklab: hack around Konqueror 3.5.4 bug:
|
|
// "----------bug".replace(/^-/g,"") == "bug"
|
|
text = text.replace(/^(\t|[ ]{1,4})/gm, "~0"); // attacklab: g_tab_width
|
|
// attacklab: clean up hack
|
|
text = text.replace(/~0/g, "");
|
|
|
|
return text;
|
|
};
|
|
|
|
var _Detab = function (text) {
|
|
// attacklab: Detab's completely rewritten for speed.
|
|
// In perl we could fix it by anchoring the regexp with \G.
|
|
// In javascript we're less fortunate.
|
|
// expand first n-1 tabs
|
|
text = text.replace(/\t(?=\t)/g, " "); // attacklab: g_tab_width
|
|
// replace the nth with two sentinels
|
|
text = text.replace(/\t/g, "~A~B");
|
|
|
|
// use the sentinel to anchor our regex so it doesn't explode
|
|
text = text.replace(/~B(.+?)~A/g, function (wholeMatch, m1, m2) {
|
|
var leadingText = m1;
|
|
var numSpaces = 4 - leadingText.length % 4; // attacklab: g_tab_width
|
|
// there *must* be a better way to do this:
|
|
for (var i = 0; i < numSpaces; i++) leadingText += " ";
|
|
|
|
return leadingText;
|
|
});
|
|
|
|
// clean up sentinels
|
|
text = text.replace(/~A/g, " "); // attacklab: g_tab_width
|
|
text = text.replace(/~B/g, "");
|
|
|
|
return text;
|
|
};
|
|
|
|
|
|
//
|
|
// attacklab: Utility functions
|
|
//
|
|
|
|
var escapeCharacters = function (text, charsToEscape, afterBackslash) {
|
|
// First we have to escape the escape characters so that
|
|
// we can build a character class out of them
|
|
var regexString = "([" + charsToEscape.replace(/([\[\]\\])/g, "\\$1") + "])";
|
|
|
|
if (afterBackslash) {
|
|
regexString = "\\\\" + regexString;
|
|
}
|
|
|
|
var regex = new RegExp(regexString, "g");
|
|
text = text.replace(regex, escapeCharacters_callback);
|
|
|
|
return text;
|
|
};
|
|
|
|
|
|
var escapeCharacters_callback = function (wholeMatch, m1) {
|
|
var charCodeToEscape = m1.charCodeAt(0);
|
|
return "~E" + charCodeToEscape + "E";
|
|
};
|
|
|
|
}; // end of Attacklab.showdown.converter
|