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generate jquery.wmd.js and jquery.wmd.min.js by combining all js files

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commit 5444d2457f5f9baf374f5e0140ad63bb4e61acee 1 parent 98cac22
@anandology anandology authored
View
10 Makefile
@@ -0,0 +1,10 @@
+
+JSFILES=jquery-wmd-plugin.js wmd.js showdown.js
+
+all: jquery.wmd.js jquery.wmd.min.js
+
+jquery.wmd.js: $(JSFILES)
+ cat $(JSFILES) > $@
+
+jquery.wmd.min.js: $(JSFILES)
+ cat $(JSFILES) | python jsmin.py > $@
View
3,667 jquery.wmd.js
@@ -0,0 +1,3667 @@
+/*
+ * jQuery wmd plugin.
+ */
+
+(function($) {
+ var counter = 0;
+
+ $.fn.wmd = function(_options) {
+ this.each(function() {
+ var defaults = {"preview": true};
+ var options = $.extend({}, _options || {}, defaults);
+
+ if (!options.button_bar) {
+ options.button_bar = "wmd-button-bar-" + counter;
+ $("<div/>")
+ .attr("class", "wmd-button-bar")
+ .attr("id", options.button_bar)
+ .insertBefore(this);
+ }
+
+ if (typeof(options.preview) == "boolean" && options.preview) {
+ options.preview = "wmd-preview-" + counter;
+ $("<div/>")
+ .attr("class", "wmd-preview")
+ .attr("id", options.preview)
+ .insertAfter(this);
+ }
+
+ if (typeof(options.output) == "boolean" && options.output) {
+ options.output = "wmd-output-" + counter;
+ $("<div/>")
+ .attr("class", "wmd-output")
+ .attr("id", options.output)
+ .insertAfter(this);
+ }
+
+ this.id = this.id || "wmd-input-" + counter;
+ options.input = this.id;
+
+ if (window.console)
+ console.log(options);
+
+ setup_wmd(options);
+ counter++;
+ });
+ };
+})(jQuery);
+function setup_wmd(wmd_options) {
+
+var Attacklab = Attacklab || {};
+wmd_options = wmd_options || top.wmd_options || {};
+
+Attacklab.wmdBase = function(){
+
+ // A few handy aliases for readability.
+ var wmd = Attacklab;
+ var doc = top.document;
+ var re = top.RegExp;
+ var nav = top.navigator;
+
+ // Some namespaces.
+ wmd.Util = {};
+ wmd.Position = {};
+ wmd.Command = {};
+ wmd.Global = {};
+ wmd.buttons = {};
+
+ wmd.showdown = top.Attacklab && top.Attacklab.showdown;
+
+ var util = wmd.Util;
+ var position = wmd.Position;
+ var command = wmd.Command;
+ var global = wmd.Global;
+
+
+ // Used to work around some browser bugs where we can't use feature testing.
+ global.isIE = /msie/.test(nav.userAgent.toLowerCase());
+ global.isIE_5or6 = /msie 6/.test(nav.userAgent.toLowerCase()) || /msie 5/.test(nav.userAgent.toLowerCase());
+ global.isIE_7plus = global.isIE && !global.isIE_5or6;
+ global.isOpera = /opera/.test(nav.userAgent.toLowerCase());
+ global.isKonqueror = /konqueror/.test(nav.userAgent.toLowerCase());
+
+
+ // -------------------------------------------------------------------
+ // YOUR CHANGES GO HERE
+ //
+ // I've tried to localize the things you are likely to change to
+ // this area.
+ // -------------------------------------------------------------------
+
+ // The text that appears on the upper part of the dialog box when
+ // entering links.
+ var imageDialogText = wmd_options.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://wmd-editor.com/images/cloud1.jpg \"Optional title\"</p>";
+ var linkDialogText = wmd_options.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://wmd-editor.com/ \"Optional title\"</p>";
+
+ // The default text that appears in the dialog input box when entering
+ // links.
+ var imageDefaultText = "http://";
+ var linkDefaultText = "http://";
+
+ // The location of your button images relative to the base directory.
+ var imageDirectory = "images/";
+
+ // Some intervals in ms. These can be adjusted to reduce the control's load.
+ var previewPollInterval = 500;
+ var pastePollInterval = 100;
+
+ // The link and title for the help button
+ var helpLink = wmd_options.helpLink || "http://wmd-editor.com/";
+ var helpHoverTitle = wmd_options.helpHoverTitle || "WMD website";
+ var helpTarget = wmd_options.helpTarget || "_blank";
+
+ // -------------------------------------------------------------------
+ // END OF YOUR CHANGES
+ // -------------------------------------------------------------------
+
+ // A collection of the important regions on the page.
+ // Cached so we don't have to keep traversing the DOM.
+ wmd.PanelCollection = function(){
+ this.buttonBar = doc.getElementById(wmd_options.button_bar || "wmd-button-bar");
+ this.preview = doc.getElementById(wmd_options.preview || "wmd-preview");
+ this.output = doc.getElementById(wmd_options.output || "wmd-output");
+ this.input = doc.getElementById(wmd_options.input || "wmd-input");
+ };
+
+ // This PanelCollection object can't be filled until after the page
+ // has loaded.
+ wmd.panels = undefined;
+
+ // 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
+
+ // Returns true if the DOM element is visible, false if it's hidden.
+ // Checks if display is anything other than none.
+ util.isVisible = function (elem) {
+
+ if (window.getComputedStyle) {
+ // Most browsers
+ return window.getComputedStyle(elem, null).getPropertyValue("display") !== "none";
+ }
+ else if (elem.currentStyle) {
+ // IE
+ return elem.currentStyle["display"] !== "none";
+ }
+ };
+
+
+ // Adds a listener callback to a DOM element which is fired on a specified
+ // event.
+ util.addEvent = function(elem, event, listener){
+ if (elem.attachEvent) {
+ // IE only. The "on" is mandatory.
+ elem.attachEvent("on" + event, listener);
+ }
+ else {
+ // Other browsers.
+ elem.addEventListener(event, listener, false);
+ }
+ };
+
+
+ // Removes a listener callback from a DOM element which is fired on a specified
+ // event.
+ util.removeEvent = function(elem, event, listener){
+ if (elem.detachEvent) {
+ // IE only. The "on" is mandatory.
+ elem.detachEvent("on" + event, listener);
+ }
+ else {
+ // Other browsers.
+ elem.removeEventListener(event, listener, false);
+ }
+ };
+
+ // Converts \r\n and \r to \n.
+ util.fixEolChars = function(text){
+ text = text.replace(/\r\n/g, "\n");
+ text = text.replace(/\r/g, "\n");
+ return text;
+ };
+
+ // Extends a regular expression. Returns a new RegExp
+ // using pre + regex + post as the expression.
+ // Used in a few functions where we have a base
+ // expression and we want to pre- or append some
+ // conditions to it (e.g. adding "$" to the end).
+ // The flags are unchanged.
+ //
+ // regex is a RegExp, pre and post are strings.
+ util.extendRegExp = function(regex, pre, post){
+
+ if (pre === null || pre === undefined)
+ {
+ pre = "";
+ }
+ if(post === null || post === undefined)
+ {
+ post = "";
+ }
+
+ var pattern = regex.toString();
+ var flags = "";
+
+ // Replace the flags with empty space and store them.
+ // Technically, this can match incorrect flags like "gmm".
+ var result = pattern.match(/\/([gim]*)$/);
+ if (result === null) {
+ flags = result[0];
+ }
+ else {
+ flags = "";
+ }
+
+ // Remove the flags and slash delimiters from the regular expression.
+ pattern = pattern.replace(/(^\/|\/[gim]*$)/g, "");
+ pattern = pre + pattern + post;
+
+ return new RegExp(pattern, flags);
+ }
+
+
+ // Sets the image for a button passed to the WMD editor.
+ // Returns a new element with the image attached.
+ // Adds several style properties to the image.
+ util.createImage = function(img){
+
+ var imgPath = imageDirectory + img;
+
+ var elem = doc.createElement("img");
+ elem.className = "wmd-button";
+ elem.src = imgPath;
+
+ return elem;
+ };
+
+
+ // This simulates a modal dialog box and asks for the URL when you
+ // click the hyperlink or image buttons.
+ //
+ // text: The html for the input box.
+ // defaultInputText: The default value that appears in the input box.
+ // makeLinkMarkdown: The function which is executed when the prompt is dismissed, either via OK or Cancel
+ util.prompt = function(text, defaultInputText, makeLinkMarkdown){
+
+ // These variables need to be declared at this level since they are used
+ // in multiple functions.
+ var dialog; // The dialog box.
+ var background; // The background beind the dialog box.
+ var input; // The text box where you enter the hyperlink.
+
+
+ if (defaultInputText === undefined) {
+ defaultInputText = "";
+ }
+
+ // Used as a keydown event handler. Esc dismisses the prompt.
+ // Key code 27 is ESC.
+ var checkEscape = function(key){
+ var code = (key.charCode || key.keyCode);
+ if (code === 27) {
+ close(true);
+ }
+ };
+
+ // Dismisses the hyperlink input box.
+ // isCancel is true if we don't care about the input text.
+ // isCancel is false if we are going to keep the text.
+ var close = function(isCancel){
+ util.removeEvent(doc.body, "keydown", checkEscape);
+ var text = input.value;
+
+ if (isCancel){
+ text = null;
+ }
+ else{
+ // Fixes common pasting errors.
+ text = text.replace('http://http://', 'http://');
+ text = text.replace('http://https://', 'https://');
+ text = text.replace('http://ftp://', 'ftp://');
+
+ if (text.indexOf('http://') === -1 && text.indexOf('ftp://') === -1 && text.indexOf('https://') === -1) {
+ text = 'http://' + text;
+ }
+ }
+
+ dialog.parentNode.removeChild(dialog);
+ background.parentNode.removeChild(background);
+ makeLinkMarkdown(text);
+ return false;
+ };
+
+ // Creates the background behind the hyperlink text entry box.
+ // Most of this has been moved to CSS but the div creation and
+ // browser-specific hacks remain here.
+ var createBackground = function(){
+
+ background = doc.createElement("div");
+ background.className = "wmd-prompt-background";
+ style = background.style;
+ style.position = "absolute";
+ style.top = "0";
+
+ style.zIndex = "1000";
+
+ // Some versions of Konqueror don't support transparent colors
+ // so we make the whole window transparent.
+ //
+ // Is this necessary on modern konqueror browsers?
+ if (global.isKonqueror){
+ style.backgroundColor = "transparent";
+ }
+ else if (global.isIE){
+ style.filter = "alpha(opacity=50)";
+ }
+ else {
+ style.opacity = "0.5";
+ }
+
+ var pageSize = position.getPageSize();
+ style.height = pageSize[1] + "px";
+
+ if(global.isIE){
+ style.left = doc.documentElement.scrollLeft;
+ style.width = doc.documentElement.clientWidth;
+ }
+ else {
+ style.left = "0";
+ style.width = "100%";
+ }
+
+ doc.body.appendChild(background);
+ };
+
+ // Create the text input box form/window.
+ var createDialog = function(){
+
+ // The main dialog box.
+ dialog = doc.createElement("div");
+ dialog.className = "wmd-prompt-dialog";
+ dialog.style.padding = "10px;";
+ dialog.style.position = "fixed";
+ dialog.style.width = "400px";
+ dialog.style.zIndex = "1001";
+
+ // The dialog text.
+ var question = doc.createElement("div");
+ question.innerHTML = text;
+ question.style.padding = "5px";
+ dialog.appendChild(question);
+
+ // The web form container for the text box and buttons.
+ var form = doc.createElement("form");
+ form.onsubmit = function(){ return close(false); };
+ style = form.style;
+ style.padding = "0";
+ style.margin = "0";
+ style.cssFloat = "left";
+ style.width = "100%";
+ style.textAlign = "center";
+ style.position = "relative";
+ dialog.appendChild(form);
+
+ // The input text box
+ input = doc.createElement("input");
+ input.type = "text";
+ input.value = defaultInputText;
+ style = input.style;
+ style.display = "block";
+ style.width = "80%";
+ style.marginLeft = style.marginRight = "auto";
+ form.appendChild(input);
+
+ // The ok button
+ var okButton = doc.createElement("input");
+ okButton.type = "button";
+ okButton.onclick = function(){ return close(false); };
+ okButton.value = "OK";
+ style = okButton.style;
+ style.margin = "10px";
+ style.display = "inline";
+ style.width = "7em";
+
+
+ // The cancel button
+ var cancelButton = doc.createElement("input");
+ cancelButton.type = "button";
+ cancelButton.onclick = function(){ return close(true); };
+ cancelButton.value = "Cancel";
+ style = cancelButton.style;
+ style.margin = "10px";
+ style.display = "inline";
+ style.width = "7em";
+
+ // The order of these buttons is different on macs.
+ if (/mac/.test(nav.platform.toLowerCase())) {
+ form.appendChild(cancelButton);
+ form.appendChild(okButton);
+ }
+ else {
+ form.appendChild(okButton);
+ form.appendChild(cancelButton);
+ }
+
+ util.addEvent(doc.body, "keydown", checkEscape);
+ dialog.style.top = "50%";
+ dialog.style.left = "50%";
+ dialog.style.display = "block";
+ if(global.isIE_5or6){
+ dialog.style.position = "absolute";
+ dialog.style.top = doc.documentElement.scrollTop + 200 + "px";
+ dialog.style.left = "50%";
+ }
+ doc.body.appendChild(dialog);
+
+ // This has to be done AFTER adding the dialog to the form if you
+ // want it to be centered.
+ dialog.style.marginTop = -(position.getHeight(dialog) / 2) + "px";
+ dialog.style.marginLeft = -(position.getWidth(dialog) / 2) + "px";
+
+ };
+
+ createBackground();
+
+ // Why is this in a zero-length timeout?
+ // Is it working around a browser bug?
+ top.setTimeout(function(){
+
+ createDialog();
+
+ var defTextLen = defaultInputText.length;
+ if (input.selectionStart !== undefined) {
+ input.selectionStart = 0;
+ input.selectionEnd = defTextLen;
+ }
+ else if (input.createTextRange) {
+ var range = input.createTextRange();
+ range.collapse(false);
+ range.moveStart("character", -defTextLen);
+ range.moveEnd("character", defTextLen);
+ range.select();
+ }
+
+ input.focus();
+ }, 0);
+ };
+
+
+ // UNFINISHED
+ // The assignment in the while loop makes jslint cranky.
+ // I'll change it to a better loop later.
+ position.getTop = function(elem, isInner){
+ var result = elem.offsetTop;
+ if (!isInner) {
+ while (elem = elem.offsetParent) {
+ result += elem.offsetTop;
+ }
+ }
+ return result;
+ };
+
+ position.getHeight = function (elem) {
+ return elem.offsetHeight || elem.scrollHeight;
+ };
+
+ position.getWidth = function (elem) {
+ return elem.offsetWidth || elem.scrollWidth;
+ };
+
+ position.getPageSize = function(){
+
+ var scrollWidth, scrollHeight;
+ var innerWidth, innerHeight;
+
+ // It's not very clear which blocks work with which browsers.
+ if(self.innerHeight && self.scrollMaxY){
+ scrollWidth = doc.body.scrollWidth;
+ scrollHeight = self.innerHeight + self.scrollMaxY;
+ }
+ else if(doc.body.scrollHeight > doc.body.offsetHeight){
+ scrollWidth = doc.body.scrollWidth;
+ scrollHeight = doc.body.scrollHeight;
+ }
+ else{
+ scrollWidth = doc.body.offsetWidth;
+ scrollHeight = doc.body.offsetHeight;
+ }
+
+ if(self.innerHeight){
+ // Non-IE browser
+ innerWidth = self.innerWidth;
+ innerHeight = self.innerHeight;
+ }
+ else if(doc.documentElement && doc.documentElement.clientHeight){
+ // Some versions of IE (IE 6 w/ a DOCTYPE declaration)
+ innerWidth = doc.documentElement.clientWidth;
+ innerHeight = doc.documentElement.clientHeight;
+ }
+ else if(doc.body){
+ // Other versions of IE
+ innerWidth = doc.body.clientWidth;
+ innerHeight = doc.body.clientHeight;
+ }
+
+ var maxWidth = Math.max(scrollWidth, innerWidth);
+ var maxHeight = Math.max(scrollHeight, innerHeight);
+ return [maxWidth, maxHeight, innerWidth, innerHeight];
+ };
+
+ // Watches the input textarea, polling at an interval and runs
+ // a callback function if anything has changed.
+ wmd.inputPoller = function(callback, interval){
+
+ var pollerObj = this;
+ var inputArea = wmd.panels.input;
+
+ // 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(){
+ // previewPollInterval is set at the top of the namespace.
+ killHandle = top.setInterval(doTickCallback, interval);
+ };
+
+ this.destroy = function(){
+ top.clearInterval(killHandle);
+ };
+
+ assignInterval();
+ };
+
+ // Handles pushing and popping TextareaStates for undo/redo commands.
+ // I should rename the stack variables to list.
+ wmd.undoManager = function(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 (!global.isIE || mode != "moving") {
+ timer = top.setTimeout(refreshState, 1);
+ }
+ else {
+ inputStateObj = null;
+ }
+ };
+
+ var refreshState = function(){
+ inputStateObj = new wmd.TextareaState();
+ poller.tick();
+ timer = undefined;
+ };
+
+ this.setCommandMode = function(){
+ mode = "command";
+ saveState();
+ timer = top.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 wmd.TextareaState();
+ undoStack[--stackPtr].restore();
+
+ if (callback) {
+ callback();
+ }
+ }
+ }
+
+ mode = "none";
+ wmd.panels.input.focus();
+ refreshState();
+ };
+
+ // Redo an action.
+ this.redo = function(){
+
+ if (undoObj.canRedo()) {
+
+ undoStack[++stackPtr].restore();
+
+ if (callback) {
+ callback();
+ }
+ }
+
+ mode = "none";
+ wmd.panels.input.focus();
+ refreshState();
+ };
+
+ // Push the input area state to the stack.
+ var saveState = function(){
+
+ var currState = inputStateObj || new wmd.TextareaState();
+
+ 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 (top.event) {
+ top.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(wmd.panels.input, "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 (global.isIE || (inputStateObj && inputStateObj.text != wmd.panels.input.value)) {
+ if (timer == undefined) {
+ mode = "paste";
+ saveState();
+ refreshState();
+ }
+ }
+ };
+
+ // pastePollInterval is specified at the beginning of this namespace.
+ poller = new wmd.inputPoller(handlePaste, pastePollInterval);
+
+ util.addEvent(wmd.panels.input, "keydown", handleCtrlYZ);
+ util.addEvent(wmd.panels.input, "keydown", handleModeChange);
+
+ util.addEvent(wmd.panels.input, "mousedown", function(){
+ setMode("moving");
+ });
+ wmd.panels.input.onpaste = handlePaste;
+ wmd.panels.input.ondrop = handlePaste;
+ };
+
+ var init = function(){
+ setEventHandlers();
+ refreshState();
+ saveState();
+ };
+
+ this.destroy = function(){
+ if (poller) {
+ poller.destroy();
+ }
+ };
+
+ init();
+ };
+
+ // 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 wmd.TextareaState();
+
+ 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){
+ setupButton(wmd.buttons["wmd-undo-button"], undoMgr.canUndo());
+ setupButton(wmd.buttons["wmd-redo-button"], undoMgr.canRedo());
+ }
+ };
+
+ var setupButton = function(button, isEnabled) {
+
+ var normalYShift = "0px";
+ var disabledYShift = "-20px";
+ var highlightYShift = "-40px";
+
+ if(isEnabled) {
+ button.style.backgroundPosition = button.XShift + " " + normalYShift;
+ button.onmouseover = function(){
+ this.style.backgroundPosition = this.XShift + " " + highlightYShift;
+ };
+
+ button.onmouseout = function(){
+ this.style.backgroundPosition = this.XShift + " " + normalYShift;
+ };
+
+ // 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(global.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.style.backgroundPosition = button.XShift + " " + disabledYShift;
+ button.onmouseover = button.onmouseout = button.onclick = function(){};
+ }
+ }
+
+ var makeSpritedButtonRow = function(){
+
+ var buttonBar = document.getElementById(wmd_options.button_bar || "wmd-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;
+ }
+
+ var boldButton = addButton("wmd-bold-button", "Strong <strong> Ctrl+B", command.doBold);
+ var italicButton = addButton("wmd-italic-button", "Emphasis <em> Ctrl+I", command.doItalic);
+ var spacer1 = addSpacer();
+
+ var linkButton = addButton("wmd-link-button", "Hyperlink <a> Ctrl+L", function(chunk, postProcessing, useDefaultText) {
+ return command.doLinkOrImage(chunk, postProcessing, false);
+ });
+ var quoteButton = addButton("wmd-quote-button", "Blockquote <blockquote> Ctrl+Q", command.doBlockquote);
+ var codeButton = addButton("wmd-code-button", "Code Sample <pre><code> Ctrl+K", command.doCode);
+ var imageButton = addButton("wmd-image-button", "Image <img> Ctrl+G", function(chunk, postProcessing, useDefaultText) {
+ return command.doLinkOrImage(chunk, postProcessing, true);
+ });
+
+ var spacer2 = addSpacer();
+
+ var olistButton = addButton("wmd-olist-button", "Numbered List <ol> Ctrl+O", function(chunk, postProcessing, useDefaultText) {
+ command.doList(chunk, postProcessing, true, useDefaultText);
+ });
+ var ulistButton = addButton("wmd-ulist-button", "Bulleted List <ul> Ctrl+U", function(chunk, postProcessing, useDefaultText) {
+ command.doList(chunk, postProcessing, false, useDefaultText);
+ });
+ var headingButton = addButton("wmd-heading-button", "Heading <h1>/<h2> Ctrl+H", command.doHeading);
+ var hrButton = addButton("wmd-hr-button", "Horizontal Rule <hr> Ctrl+R", command.doHorizontalRule);
+ var spacer3 = addSpacer();
+
+ var undoButton = addButton("wmd-undo-button", "Undo - Ctrl+Z");
+ undoButton.execute = function(manager){
+ manager.undo();
+ };
+
+ var redo_title = null;
+
+ var redoButton = addButton("wmd-redo-button", "Redo - Ctrl+Y");
+ if (/win/.test(nav.platform.toLowerCase())) {
+ redoButton.title = "Redo - Ctrl+Y";
+ }
+ else {
+ // mac and other non-Windows platforms
+ redoButton.title = "Redo - Ctrl+Shift+Z";
+ }
+ redoButton.execute = function(manager){
+ manager.redo();
+ };
+
+ var helpButton = createButton("wmd-help-button");
+ helpButton.isHelp = true;
+ setupButton(helpButton, true);
+ buttonRow.appendChild(helpButton);
+
+ var helpAnchor = document.createElement("a");
+ helpAnchor.href = helpLink;
+ helpAnchor.target = helpTarget
+ helpAnchor.title = helpHoverTitle;
+ helpButton.appendChild(helpAnchor);
+
+ setUndoRedoButtonStates();
+ }
+
+ var setupEditor = function(){
+
+ if (/\?noundo/.test(doc.location.href)) {
+ wmd.nativeUndo = true;
+ }
+
+ if (!wmd.nativeUndo) {
+ undoMgr = new wmd.undoManager(function(){
+ previewRefreshCallback();
+ setUndoRedoButtonStates();
+ });
+ }
+
+ makeSpritedButtonRow();
+
+
+ var keyEvent = "keydown";
+ if (global.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 (key.ctrlKey || key.metaKey) {
+
+ var keyCode = key.charCode || key.keyCode;
+ var keyCodeStr = String.fromCharCode(keyCode).toLowerCase();
+
+ switch(keyCodeStr) {
+ case "b":
+ doClick(wmd.buttons["wmd-bold-button"]);
+ break;
+ case "i":
+ doClick(wmd.buttons["wmd-italic-button"]);
+ break;
+ case "l":
+ doClick(wmd.buttons["wmd-link-button"]);
+ break;
+ case "q":
+ doClick(wmd.buttons["wmd-quote-button"]);
+ break;
+ case "k":
+ doClick(wmd.buttons["wmd-code-button"]);
+ break;
+ case "g":
+ doClick(wmd.buttons["wmd-image-button"]);
+ break;
+ case "o":
+ doClick(wmd.buttons["wmd-olist-button"]);
+ break;
+ case "u":
+ doClick(wmd.buttons["wmd-ulist-button"]);
+ break;
+ case "h":
+ doClick(wmd.buttons["wmd-heading-button"]);
+ break;
+ case "r":
+ doClick(wmd.buttons["wmd-hr-button"]);
+ break;
+ case "y":
+ doClick(wmd.buttons["wmd-redo-button"]);
+ break;
+ case "z":
+ if(key.shiftKey) {
+ doClick(wmd.buttons["wmd-redo-button"]);
+ }
+ else {
+ doClick(wmd.buttons["wmd-undo-button"]);
+ }
+ break;
+ default:
+ return;
+ }
+
+
+ if (key.preventDefault) {
+ key.preventDefault();
+ }
+
+ if (top.event) {
+ top.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 (global.isIE) {
+ util.addEvent(inputBox, "keydown", function(key){
+ var code = key.keyCode;
+ // Key code 27 is ESC
+ if (code === 27) {
+ return false;
+ }
+ });
+ }
+
+ if (inputBox.form) {
+ var submitCallback = inputBox.form.onsubmit;
+ inputBox.form.onsubmit = function(){
+ convertToHtml();
+ if (submitCallback) {
+ return submitCallback.apply(this, arguments);
+ }
+ };
+ }
+ };
+
+ // Convert the contents of the input textarea to HTML in the output/preview panels.
+ var convertToHtml = function(){
+
+ if (wmd.showdown) {
+ var markdownConverter = new wmd.showdown.converter();
+ }
+ var text = inputBox.value;
+
+ var callback = function(){
+ inputBox.value = text;
+ };
+
+ if (!/markdown/.test(wmd.wmd_env.output.toLowerCase())) {
+ if (markdownConverter) {
+ inputBox.value = markdownConverter.makeHtml(text);
+ top.setTimeout(callback, 0);
+ }
+ }
+ return true;
+ };
+
+
+ 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 = "";
+ }
+ top.clearInterval(creationHandle);
+ };
+
+ init();
+ };
+
+ // The input textarea state/contents.
+ // This is used to implement undo/redo by the undo manager.
+ wmd.TextareaState = function(){
+
+ // Aliases
+ var stateObj = this;
+ var inputArea = wmd.panels.input;
+
+ this.init = function() {
+
+ if (!util.isVisible(inputArea)) {
+ return;
+ }
+
+ 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 && !global.isOpera) {
+
+ inputArea.focus();
+ inputArea.selectionStart = stateObj.start;
+ inputArea.selectionEnd = stateObj.end;
+ inputArea.scrollTop = stateObj.scrollTop;
+ }
+ else if (doc.selection) {
+
+ if (doc.activeElement && doc.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 (doc.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 = doc.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 wmd.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 (global.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();
+ };
+
+ // before: contains all the text in the input box BEFORE the selection.
+ // after: contains all the text in the input box AFTER the selection.
+ wmd.Chunks = function(){
+ };
+
+ // startRegex: a regular expression to find the start tag
+ // endRegex: a regular expresssion to find the end tag
+ wmd.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.
+ wmd.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;
+ }
+ };
+
+
+ wmd.Chunks.prototype.addBlankLines = function(nLinesBefore, nLinesAfter, findExtraNewlines){
+
+ if (nLinesBefore === undefined) {
+ nLinesBefore = 1;
+ }
+
+ if (nLinesAfter === undefined) {
+ nLinesAfter = 1;
+ }
+
+ nLinesBefore++;
+ nLinesAfter++;
+
+ var regexText;
+ var replacementText;
+
+ this.selection = this.selection.replace(/(^\n*)/, "");
+ this.startTag = this.startTag + re.$1;
+ this.selection = this.selection.replace(/(\n*$)/, "");
+ this.endTag = this.endTag + re.$1;
+ this.startTag = this.startTag.replace(/(^\n*)/, "");
+ this.before = this.before + re.$1;
+ this.endTag = this.endTag.replace(/(\n*$)/, "");
+ this.after = this.after + re.$1;
+
+ if (this.before) {
+
+ regexText = replacementText = "";
+
+ while (nLinesBefore--) {
+ regexText += "\\n?";
+ replacementText += "\n";
+ }
+
+ if (findExtraNewlines) {
+ regexText = "\\n*";
+ }
+ this.before = this.before.replace(new re(regexText + "$", ""), 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);
+ }
+ };
+
+ // 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){
+
+ 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(imageDialogText, imageDefaultText, makeLinkMarkdown);
+ }
+ else {
+ util.prompt(linkDialogText, linkDefaultText, makeLinkMarkdown);
+ }
+ return true;
+ }
+ };
+
+ util.makeAPI = function(){
+ wmd.wmd = {};
+ wmd.wmd.editor = wmd.editor;
+ wmd.wmd.previewManager = wmd.previewManager;
+ };
+
+ util.startEditor = function(){
+
+ if (wmd.wmd_env.autostart === false) {
+ util.makeAPI();
+ return;
+ }
+
+ var edit; // The editor (buttons + input + outputs) - the main object.
+ var previewMgr; // The preview manager.
+
+ // Fired after the page has fully loaded.
+ var loadListener = function(){
+
+ wmd.panels = new wmd.PanelCollection();
+
+ previewMgr = new wmd.previewManager();
+ var previewRefreshCallback = previewMgr.refresh;
+
+ edit = new wmd.editor(previewRefreshCallback);
+
+ previewMgr.refresh(true);
+
+ };
+
+ util.addEvent(top, "load", loadListener);
+ };
+
+ wmd.previewManager = function(){
+
+ 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 wmd.inputPoller(listener, previewPollInterval);
+ };
+
+ var getDocScrollTop = function(){
+
+ var result = 0;
+
+ if (top.innerHeight) {
+ result = top.pageYOffset;
+ }
+ else
+ if (doc.documentElement && doc.documentElement.scrollTop) {
+ result = doc.documentElement.scrollTop;
+ }
+ else
+ if (doc.body) {
+ result = doc.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) {
+ top.clearTimeout(timeout);
+ timeout = undefined;
+ }
+
+ if (startType !== "manual") {
+
+ var delay = 0;
+
+ if (startType === "delayed") {
+ delay = elapsedTime;
+ }
+
+ if (delay > maxDelay) {
+ delay = maxDelay;
+ }
+ timeout = top.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;
+ wmd.panels.output.readOnly = true;
+ }
+ // Otherwise we are just replacing the text in a div.
+ // Send the HTML wrapped in <pre><code>
+ else {
+ var newText = text.replace(/&/g, "&amp;");
+ newText = newText.replace(/</g, "&lt;");
+ wmd.panels.output.innerHTML = "<pre><code>" + newText + "</code></pre>";
+ }
+ }
+
+ if (wmd.panels.preview) {
+ wmd.panels.preview.innerHTML = text;
+ }
+
+ setPanelScrollTops();
+
+ if (isFirstTimeFilled) {
+ isFirstTimeFilled = false;
+ return;
+ }
+
+ var fullTop = position.getTop(wmd.panels.input) - getDocScrollTop();
+
+ if (global.isIE) {
+ top.setTimeout(function(){
+ top.scrollBy(0, fullTop - emptyTop);
+ }, 0);
+ }
+ else {
+ top.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();
+ };
+
+ // Moves the cursor to the next line and continues lists, quotes and code.
+ command.doAutoindent = function(chunk, postProcessing, useDefaultText){
+
+ chunk.before = chunk.before.replace(/(\n|^)[ ]{0,3}([*+-]|\d+[.])[ \t]*\n$/, "\n\n");
+ chunk.before = chunk.before.replace(/(\n|^)[ ]{0,3}>[ \t]*\n$/, "\n\n");
+ chunk.before = chunk.before.replace(/(\n|^)[ \t]+\n$/, "\n\n");
+
+ useDefaultText = false;
+
+ if(/(\n|^)[ ]{0,3}([*+-])[ \t]+.*\n$/.test(chunk.before)){
+ if(command.doList){
+ command.doList(chunk, postProcessing, false, true);
+ }
+ }
+ if(/(\n|^)[ ]{0,3}(\d+[.])[ \t]+.*\n$/.test(chunk.before)){
+ if(command.doList){
+ command.doList(chunk, postProcessing, true, true);
+ }
+ }
+ if(/(\n|^)[ ]{0,3}>[ \t]+.*\n$/.test(chunk.before)){
+ if(command.doBlockquote){
+ command.doBlockquote(chunk, postProcessing, useDefaultText);
+ }
+ }
+ if(/(\n|^)(\t|[ ]{4,}).*\n$/.test(chunk.before)){
+ if(command.doCode){
+ command.doCode(chunk, postProcessing, useDefaultText);
+ }
+ }
+ };
+
+ command.doBlockquote = function(chunk, postProcessing, useDefaultText){
+
+ chunk.selection = chunk.selection.replace(/^(\n*)([^\r]+?)(\n*)$/,
+ 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]*$/gm, replacement) + "\n";
+ });
+ }
+ };
+
+ if(/^(?![ ]{0,3}>)/m.test(chunk.selection)){
+ command.wrap(chunk, wmd.wmd_env.lineLength - 2);
+ chunk.selection = chunk.selection.replace(/^/gm, "> ");
+ replaceBlanksInTags(true);
+ chunk.addBlankLines();
+ }
+ else{
+ chunk.selection = chunk.selection.replace(/^[ ]{0,3}> ?/gm, "");
+ command.unwrap(chunk);
+ replaceBlanksInTags(false);
+
+ if(!/^(\n|^)[ ]{0,3}>/.test(chunk.selection) && chunk.startTag){
+ chunk.startTag = chunk.startTag.replace(/\n{0,2}$/, "\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.$1;
+ }
+ nLinesBefore = /[^\n]\n\n[^\n]/.test(itemText) ? 1 : 0;
+ return getPrefixedItem(itemText);
+ });
+
+ if(!chunk.selection){
+ chunk.selection = useDefaultText ? "List item" : " ";
+ }
+
+ var prefix = getItemPrefix();
+
+ var nLinesAfter = 1;
+
+ chunk.after = chunk.after.replace(nextItemsRegex,
+ function(itemText){
+ nLinesAfter = /[^\n]\n\n[^\n]/.test(itemText) ? 1 : 0;
+ return getPrefixedItem(itemText);
+ });
+
+ chunk.trimWhitespace(true);
+ chunk.addBlankLines(nLinesBefore, nLinesAfter, true);
+ chunk.startTag = prefix;
+ var spaces = prefix.replace(/./g, " ");
+ command.wrap(chunk, wmd.wmd_env.lineLength - spaces.length);
+ chunk.selection = chunk.selection.replace(/\n/g, "\n" + spaces);
+
+ };
+
+ command.doHeading = function(chunk, postProcessing, useDefaultText){
+
+ // Remove leading/trailing whitespace and reduce internal spaces to single spaces.
+ chunk.selection = chunk.selection.replace(/\s+/g, " ");
+ chunk.selection = chunk.selection.replace(/(^\s+|\s+$)/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.wmd_env.lineLength){
+ len = wmd.wmd_env.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);
+ }
+};
+
+
+Attacklab.wmd_env = {};
+Attacklab.account_options = {};
+Attacklab.wmd_defaults = {version:1, output:"HTML", lineLength:40, delayLoad:false};
+
+if(!Attacklab.wmd)
+{
+ Attacklab.wmd = function()
+ {
+ Attacklab.loadEnv = function()
+ {
+ var mergeEnv = function(env)
+ {
+ if(!env)
+ {
+ return;
+ }
+
+ for(var key in env)
+ {
+ Attacklab.wmd_env[key] = env[key];
+ }
+ };
+
+ mergeEnv(Attacklab.wmd_defaults);
+ mergeEnv(Attacklab.account_options);
+ mergeEnv(wmd_options);
+ Attacklab.full = true;
+
+ var defaultButtons = "bold italic link blockquote code image ol ul heading hr";
+ Attacklab.wmd_env.buttons = Attacklab.wmd_env.buttons || defaultButtons;
+ };
+ Attacklab.loadEnv();
+
+ };
+
+ Attacklab.wmd();
+ Attacklab.wmdBase();
+ Attacklab.Util.startEditor();
+};
+
+}//
+// showdown.js -- A javascript port of Markdown.
+//
+// Copyright (c) 2007 John Fraser.
+//
+// Original Markdown Copyright (c) 2004-2005 John Gruber
+// <http://daringfireball.net/projects/markdown/>
+//
+// The full source distribution is at:
+//
+// A A L
+// T C A
+// T K B
+//
+// <http://www.attacklab.net/>
+//
+
+//
+// Wherever possible, Showdown is a straight, line-by-line port
+// of the Perl version of Markdown.
+//
+// This is not a normal parser design; it's basically just a
+// series of string substitutions. It's hard to read and
+// maintain this way, but keeping Showdown close to the original
+// design makes it easier to port new features.
+//
+// More importantly, Showdown behaves like markdown.pl in most
+// edge cases. So web applications can do client-side preview
+// in Javascript, and then build identical HTML on the server.
+//
+// This port needs the new RegExp functionality of ECMA 262,
+// 3rd Edition (i.e. Javascript 1.5). Most modern web browsers
+// should do fine. Even with the new regular expression features,
+// We do a lot of work to emulate Perl's regex functionality.
+// The tricky changes in this file mostly have the "attacklab:"
+// label. Major or self-explanatory changes don't.
+//
+// Smart diff tools like Araxis Merge will be able to match up
+// this file with markdown.pl in a useful way. A little tweaking
+// helps: in a copy of markdown.pl, replace "#" with "//" and
+// replace "$text" with "text". Be sure to ignore whitespace
+// and line endings.
+//
+
+
+//
+// Showdown usage:
+//
+// var text = "Markdown *rocks*.";
+//
+// var converter = new Attacklab.showdown.converter();
+// var html = converter.makeHtml(text);
+//
+// alert(html);
+//
+// Note: move the sample code to the bottom of this
+// file before uncommenting it.
+//
+
+
+//
+// Attacklab namespace
+//
+var Attacklab = Attacklab || {}
+
+//
+// Showdown namespace
+//
+Attacklab.showdown = Attacklab.showdown || {}
+
+//
+// converter
+//
+// Wraps all "globals" so that the only thing
+// exposed is makeHtml().
+//
+Attacklab.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) {
+//
+