Edit

Nip has been removed due to obvious security flaws. The code will be made available for anyone who wants to use it internally, but I wouldn't suggest it making it public.

Why?...

HAML is a great markup language. Unfortunately, very few blog engines will allow you to use it. HTML, on the other hand, is long and painful to write. When I started this blog I didn't want to have to use the WYSIWYG tool or write plain HTML.

This is why I wrote Nip. You can input HAML code and output either a rendered page or the plain HTML so that you can copy and paste it in your page or your editor.

What it can do

• HTML to HAML conversion
• HAML to rendered
• HAML to raw HTML
• Real-time updating
• Progress auto-save via localStorage

How I did it

Ruby. Sinatra application. Prototype and LivePipe for JavaScript libraries. I believe all these are the right tools for the work. This is all it takes to convert your HAML to HTML.

# params[:html_code] is the HAML passed from the client
rendered = haml(params[:haml_code])
html = params[:raw_html] == 'true' ? 
            "<pre>#{CGI.escapeHTML(rendered)}</pre>" : rendered

And this will convert the HTML to HAML (for easier importing).

haml = Haml::HTML.new(params[:html_code], :xhtml => true).render

Check it out here
Removed for security reasons