Class: LoyalCore::TextUtil

Inherits:
Object
  • Object
show all
Defined in:
lib/loyal_core/utils/text_util.rb

Class Method Summary collapse

Class Method Details

.markdown(text) ⇒ Object 



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# File 'lib/loyal_core/utils/text_util.rb', line 5

def markdown(text)
  # options = [:hard_wrap, :filter_html, :autolink, :no_intraemphasis, :fenced_code, :gh_blockcode]

  options = [:hard_wrap, :autolink, :no_intraemphasis, :fenced_code, :gh_blockcode]
  self.syntax_highlighter(::RedcarpetCompat.new(text, *options).to_html).html_safe
end

.syntax_highlighter(html) ⇒ Object 



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# File 'lib/loyal_core/utils/text_util.rb', line 12

def syntax_highlighter(html)
  doc = ::Nokogiri::HTML(html)

  doc.search("//pre").each do |pre|
    lang = pre.attr('lang')

    if lang.blank?
      _lang_class = pre.attr('class').to_s.split(' ').select {|_itm| _itm.include?('lang-') }.first

      if _lang_class
        lang = _lang_class.gsub('lang-', '')
      end
    end

    # debugger
    if (pre_code=pre.css('code')).any?
      lang = pre_code.attr('class').to_s
    end

    if lang.blank?
      lang = :text
    end

    text = pre.text.rstrip

    begin
      pre.replace ::CodeRay.scan(text, lang).div.to_s
    rescue Exception => error
      Rails.logger.debug "#{__FILE__} syntax_highlighter error: \ntext => #{text} \nlang => #{lang}\n origin error:#{error}"
    end
  end

  doc.css('body').try(:inner_html).to_s
end