Class: Markdown::HTMLPipeline

Inherits:
Object
  • Object
show all
Defined in:
lib/jekyll-html-pipeline.rb

Instance Method Summary collapse

Constructor Details

#initialize(config) ⇒ HTMLPipeline

Returns a new instance of HTMLPipeline.



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# File 'lib/jekyll-html-pipeline.rb', line 4

def initialize(config)
  require 'html/pipeline'
  @config = config
  @errors = []
end

Instance Method Details

#convert(content) ⇒ Object 



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# File 'lib/jekyll-html-pipeline.rb', line 70

def convert(content)
  setup
  @parser.to_html(content)
end

#ensure_default_opts ⇒ Object 



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# File 'lib/jekyll-html-pipeline.rb', line 35

def ensure_default_opts
  @config['html_pipeline']['filters'] ||= ['markdownfilter']
  @config['html_pipeline']['context'] ||= {'gfm' => true}
  # symbolize strings as keys, which is what HTML::Pipeline wants
  @config['html_pipeline']['context'] = symbolize_keys(@config['html_pipeline']['context'])
end

#filter_key(s) ⇒ Object 



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# File 'lib/jekyll-html-pipeline.rb', line 10

def filter_key(s)
  s.to_s.downcase.to_sym
end

#is_filter?(f) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/jekyll-html-pipeline.rb', line 14

def is_filter?(f)
  f < HTML::Pipeline::Filter
rescue LoadError, ArgumentError
  false
end

#setup ⇒ Object 



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# File 'lib/jekyll-html-pipeline.rb', line 42

def setup
  unless @setup
    ensure_default_opts

    filters = @config['html_pipeline']['filters'].map do |f|
      if is_filter?(f)
        f
      else
        key = filter_key(f)
        begin
          filter = HTML::Pipeline.constants.find { |c| c.downcase == key }
          # probably a custom filter
          if filter.nil?
            Jekyll::Converters.const_get(f)
          else
            HTML::Pipeline.const_get(filter)
          end
        rescue Exception => e
          raise LoadError.new(e)
        end
      end
    end

    @parser = HTML::Pipeline.new(filters, @config['html_pipeline']['context'])
    @setup = true
  end
end

#symbolize_keys(hash) ⇒ Object 



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# File 'lib/jekyll-html-pipeline.rb', line 20

def symbolize_keys(hash)
  hash.inject({}){|result, (key, value)|
    new_key = case key
              when String then key.to_sym
              else key
              end
    new_value = case value
                when Hash then symbolize_keys(value)
                else value
                end
    result[new_key] = new_value
    result
  }
end