Class: Asciidoctor::Html5s::HtmlPipelineHighlighter

Inherits:
SyntaxHighlighter::Base
  • Object
show all
Defined in:
lib/asciidoctor/html5s/html_pipeline_highlighter.rb

Overview

Modification of Asciidoctor::SyntaxHighlighter::HtmlPipelineAdapter that uses attribute ‘data-lang` instead of `lang`.

Rationale: Attribute ‘lang` is defined for natural language of text, not for programming languages.

Instance Method Summary collapse

Constructor Details

#initialize(name, backend, opts = {}) ⇒ HtmlPipelineHighlighter

Returns a new instance of HtmlPipelineHighlighter.



13
14
15
16
17
18
 
# File 'lib/asciidoctor/html5s/html_pipeline_highlighter.rb', line 13

def initialize(name, backend, opts = {})
  super
  # Use this version of the #format method only for our backend, otherwise
  # use the original variant.
  singleton_class.send(:alias_method, :format, :format_orig) if backend != 'html5s'
end

Instance Method Details

#format(node, lang, _opts) ⇒ Object 



20
21
22
 
# File 'lib/asciidoctor/html5s/html_pipeline_highlighter.rb', line 20

def format(node, lang, _opts)
  %(<pre><code#{%{ data-lang="#{lang}"} if lang}>#{node.content}</code></pre>)
end

#format_orig(node, lang, _opts) ⇒ Object

Copied from Asciidoctor::SyntaxHighlighter::HtmlPipelineAdapter#format. Note: HtmlPipelineAdapter is not available in asciidoctor.js, that’s why it’s done like this instead of delegation or inheritance.



27
28
29
 
# File 'lib/asciidoctor/html5s/html_pipeline_highlighter.rb', line 27

def format_orig(node, lang, _opts)
  %(<pre#{%{ lang="#{lang}"} if lang}><code>#{node.content}</code></pre>)
end