# File lib/prawn/svg/font.rb, line 13
  def self.map_font_family_to_pdf_font(font_family, font_style = nil)
    font_family.split(",").detect do |font|
      font = font.gsub(/['"]/, '').gsub(/\s{2,}/, ' ').strip.downcase

      built_in_font = BUILT_IN_FONTS.detect {|f| f.downcase == font}
      break built_in_font if built_in_font

      generic_font = GENERIC_CSS_FONT_MAPPING[font]
      break generic_font if generic_font
      
      break font.downcase if font_installed?(font, font_style)
    end
  end