Class: SyntaxhighlighterPreProcessor

Inherits:
Object
  • Object
show all
Defined in:
lib/smartgen_syntaxhighlighter/pre_processor.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(opts = {}) ⇒ SyntaxhighlighterPreProcessor

Returns a new instance of SyntaxhighlighterPreProcessor.



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# File 'lib/smartgen_syntaxhighlighter/pre_processor.rb', line 4

def initialize(opts={})
  @enclose_with_tag = opts.delete(:enclose_with_tag)
  @options = merge_with_defaults(opts)
end

Instance Attribute Details

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/smartgen_syntaxhighlighter/pre_processor.rb', line 2

def options
  @options
end

Instance Method Details

#process(body, metadata = {}) ⇒ Object 



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# File 'lib/smartgen_syntaxhighlighter/pre_processor.rb', line 9

def process(body, metadata={})
  body.gsub(%r{<(ruby|js|javascript|shell|bash|html|xml|as3|plain)>(.*?)</\1>}m) do |match|
    escaped_code = ERB::Util.h($2)

    options[:brush] = case $1
      when 'ruby', 'plain', 'as3', 'shell', 'bash', 'xml'
        $1
      when 'js', 'javascript'
        'js; html-script: true'
      when 'html'
        'xml' # html is understood, but there are .xml rules in the CSS
      else
        'plain'
    end

    %{#{enclose_start_tag}<pre class="#{to_class_attribute}">#{escaped_code}</pre>#{enclose_end_tag}}
  end
end