Coderay renders actual ruby code

I have RedCloth with Coderay installed to highlight my code pasted in my blog.

If I paste some code like this:

 CodeRay.scan(
"set_meta_tags :og => {
        :title => @blog.title,
        :type => 'article',
        :url => current_url,
        :image => @blog.blog_images.first.image.url,
        :article => {:published_time => @blog.created_at.to_time.iso8601,
                     :modified_time => @blog.updated_at.to_time.iso8601,
                     :author => 'Name',
                     :section => @blog.categories.first.name,
                     :tags => @blog.categories.map(&:name).join(', ')
        }}",
:ruby).div(:css => :class)

I got this

set_meta_tags :og => {

        :title => blog</span>.title,
        <span class="symbol">:type</span> =&gt; <span class="string"><span class="delimiter">'</span><span class="content">article</span><span class="delimiter">'</span></span>,
        <span class="symbol">:url</span> =&gt; current_url,
        <span class="symbol">:image</span> =&gt; <span class="instance-variable">blog.blog_images.first.image.url,

        :article => {:published_time => blog</span>.created_at.to_time.iso8601,
                     <span class="symbol">:modified_time</span> =&gt; <span class="instance-variable">blog.updated_at.to_time.iso8601,

                     :author => ‘Name’,

                     :section => blog</span>.categories.first.name,
                     <span class="symbol">:tags</span> =&gt; <span class="instance-variable">blog.categories.map(&:name).join(‘, ’)

        }}

How can I get rid of that?

Many thanks

You can pass the markup through sanitize before outputting it in the view. This will keep harmless html tags, but strip potentially harmful things such as <script>:

<%= sanitize CodeRay.scan(..., :ruby).div(:css => :class) %>

If you can trust the markup 100% (I think you can in this case), you can use raw to bypass escaping or html_safe to mark the string as safe. This will lead to all tags being outputted.

<%= raw CodeRay.scan(..., :ruby).div(:css => :class) %>

or

<%= CodeRay.scan(..., :ruby).div(:css => :class).html_safe %>

Also see http://guides.rubyonrails.org/active_support_core_extensions.html#output-safety