iframe-proxy | Sunbelt Computer Software

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# Unique header generation
require 'middleman-core/renderers/redcarpet'
require 'digest'
class UniqueHeadCounter < Middleman::Renderers::MiddlemanRedcarpetHTML
  def initialize
    @head_count = {}
  def header(text, header_level)
    friendly_text = text.gsub(/<[^>]*>/,"").parameterize
    if friendly_text.strip.length == 0
      # Looks like parameterize removed the whole thing! It removes many unicode
      # characters like Chinese and Russian. To get a unique URL, let's just
      # URI escape the whole header
      friendly_text = Digest::SHA1.hexdigest(text)[0,10]
    @head_count[friendly_text] ||= 0
    @head_count[friendly_text] += 1
    if @head_count[friendly_text] > 1
      friendly_text += "-#{@head_count[friendly_text]}"
    return "<h#{header_level} id='#{friendly_text}'>#{text}</h#{header_level}>"

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