Syntax highlighting example in Readme not working

[bradly]

Hello,

I'm trying to get syntax highlighting working, but I'm having trouble.

Here is my irb output:

› irb
>> require 'html/pipeline'
=> true
>> require 'linguist'
=> true
>> require 'pygments'
=> false
>> pipeline = HTML::Pipeline.new [
?>       HTML::Pipeline::MarkdownFilter,
?>       HTML::Pipeline::SyntaxHighlightFilter
>>   ]
=> #<HTML::Pipeline:0x007f872b1a7d40 @filters=[HTML::Pipeline::MarkdownFilter, HTML::Pipeline::SyntaxHighlightFilter], @default_context={}, @result_class=Hash, @instrumentation_service=nil>
>> result = pipeline.call <<-CODE
This is *great*:

    some_code(:first)

CODE
=> {:output=>#<Nokogiri::HTML::DocumentFragment:0x3fc3958db18c name="#document-fragment" children=[#<Nokogiri::XML::Element:0x3fc3958dae1c name="p" children=[#<Nokogiri::XML::Text:0x3fc3958dff84 "This is ">, #<Nokogiri::XML::Element:0x3fc3958dfe94 name="em" children=[#<Nokogiri::XML::Text:0x3fc3958dfc00 "great">]>, #<Nokogiri::XML::Text:0x3fc3958dfa48 ":">]>, #<Nokogiri::XML::Text:0x3fc3958dada4 "\n\n">, #<Nokogiri::XML::Element:0x3fc3958dad2c name="pre" children=[#<Nokogiri::XML::Element:0x3fc3958df520 name="code" children=[#<Nokogiri::XML::Text:0x3fc3958df28c "some_code(:first)\n">]>]>]>}
>> result[:output].to_s
=> "<p>This is <em>great</em>:</p>\n\n<pre><code>some_code(:first)\n</code></pre>"

The Readme says this should output:

<p>This is <em>great</em>:</p>

<div class="highlight">
<pre><span class="n">some_code</span><span class="p">(</span><span class="ss">:first</span><span class="p">)</span>
</pre>
</div>

This is probably me just not understanding how this works, but I can't figure it out. Any help would be greatly appreciated. Thanks!

Ruby version: 2.0.0
html-pipeline version: 1.9.0
github/linguist version: 2.10.15
pygments.rb version: 0.6.0

[JuanitoFatas]

Hello @bradly!

Your setup is working. Just the example in README.md is stale. I am going to update it.

When you use fenced code blocks and specify a language then you will have a <div> with class of highlight and many span elements wrap your code.

Thanks for reporting! 😊