MooTools HTML Police: dwMarkupMarine

By  on  

We've all inherited rubbish websites from webmasters that couldn't master valid HTML. You know the horrid markup: paragraph tags with align attributes and body tags with background attributes. It's almost a sin what they do. That's where dwMarkupMarine comes in. dwMarkupMarine is a small MooTools plugin you can bring into those awful pages to help highlight the mistakes you need to correct.

The MooTools 1.2 JavaScript

var dwMarkupMarine = new Class({
			
	//implements
	Implements: [Options],

	//options
	options: {
		tags: 'b, i, u, font, basefont, center, applet, dir, isindex, menu, s, strike, layer, xmp',
		attributes: 'caption[align!=""], iframe[align!=""], image[align!=""], input[align!=""], object[align!=""], legend[align!=""], table[align!=""], hr[align!=""], div[align!=""], p[align!=""], h1[align!=""], h2[align!=""], h3[align!=""], h4[align!=""], h5[align!=""], h6[align!=""], body[alink!=""], body[background!=""], table[bgcolor!=""], tr[bgcolor!=""], td[bgcolor!=""], th[bgcolor!=""], img[border!=""], object[border!=""], br[clear!=""], *[compact!=""], td[height!=""], tr[height!=""], *[hspace!=""], script[language!=""], body[link!=""], hr[noshade!=""], td[nowrap!=""], th[nowrap!=""], isindex[prompt!=""], hr[size!=""], *[start!=""], li[type!=""], ol[type!=""], ul[type!=""], li[value!=""], body[vlink!=""], *[vspace!=""], hr[width!=""], td[width!=""], th[width!=""], pre[width!=""]',
		mootools: '*[onblur!=""], *[onclick!=""], *[ondblclick!=""], *[onfocus!=""], *[onkeydown!=""], *[onkeypress!=""], *[onkeyup!=""], *[onload!=""], *[onmouseover!=""], *[onmousedown!=""], *[onmouseup!=""], *[onmouseout!=""], *[onmousemove!=""], *[onselect!=""], *[onsubmit!=""], *[onunload!=""]',
		checkTags: true,
		checkAttributes: true,
		checkMoo: true,
		custom: [],
		weapon: 'bad'
	},
	
	//initialization
	initialize: function(options) {
		this.setOptions(options);
		this.search();
	},
	
	//a method that does whatever you want
	search: function() {
		if(this.options.checkTags) { this.beat(this.options.tags); }
		if(this.options.checkAttributes) { this.beat(this.options.attributes); }
		if(this.options.checkMoo) { this.beat(this.options.mootools); }
		if(this.options.custom) { this.beat(this.options.custom); }
	},
	
	//tag the baddies
	beat: function(collection) {
		$$(collection).each(function(el) {
			el.addClass(this.options.weapon);
		}.bind(this));
	}
});

Here are the class options:

  • tags: a string of HTML tags to look for.
  • attributes: a string of element/attribute combinations to look for.
  • mootools: a string of "on" events to look for. You're using Moo -- there's no need for those.
  • checkTags: should the class look for bad tags?
  • checkAttributes: should the class look for bad attributes?
  • checkMoo: should the class look for "on" event attributes?
  • custom: a string of custom selectors to look for.
  • weapon: class to tag onto matches.

The Moo 1.2 Usage

//make it happen!
window.addEvent('load',function() {
	var mm = new dwMarkupMarine({ 
		weapon: 'bad'
	}); 
});

Do you have any use for this? Any ideas for improvement? Share them!

Recent Features

  • By
    CSS Animations Between Media Queries

    CSS animations are right up there with sliced bread. CSS animations are efficient because they can be hardware accelerated, they require no JavaScript overhead, and they are composed of very little CSS code. Quite often we add CSS transforms to elements via CSS during...

  • By
    Designing for Simplicity

    Before we get started, it's worth me spending a brief moment introducing myself to you. My name is Mark (or @integralist if Twitter happens to be your communication tool of choice) and I currently work for BBC News in London England as a principal engineer/tech...

Incredible Demos

  • By
    CSS Rounded Corners

    The ability to create rounded corners with CSS opens the possibility of subtle design improvements without the need to include images.  CSS rounded corners thus save us time in creating images and requests to the server.  Today, rounded corners with CSS are supported by all of...

  • By
    jQuery Chosen Plugin

    Without a doubt, my least favorite form element is the SELECT element.  The element is almost unstylable, looks different across platforms, has had inconsistent value access, and disaster that is the result of multiple=true is, well, a disaster.  Needless to say, whenever a developer goes...

Discussion

  1. Adam Taylor

    I think this could be a great class to add on to a CMS. Specifically when your clients are updating the site – If the preview showed invalid markup to be ugly as sin then the client might think twice.

    David – amazing work!!!

  2. If only we had a “virus” that could run this on all web pages. Ahhh, the day.

  3. I think Adam, hit it right on the head. This would be awesome for a CMS. You should make the ‘bad’ class a little bit more bad, maybe something like magenta with flashing text.

  4. i love mootools, but why use JavaScript when you can just use CSS to achieve the same goal?

    Check out Eric Meyer’s Diagnostic CSS file: http://meyerweb.com/eric/tools/css/diagnostics/index.html

  5. One tag I found sorely missing is embed. Everyone seems to think the way to put flash in is use the embed tag, but its useless and invalid!

  6. You could use this as a bookmarklet too. That’s be neat.

  7. @Philip: I created this using MooTools because I have future aspirations for it, like having a “correct” method that would, for example, replace [b] tags with [strong] tags.

  8. @david: that would be pretty cool. :)

Wrap your code in <pre class="{language}"></pre> tags, link to a GitHub gist, JSFiddle fiddle, or CodePen pen to embed!