Class: Twee2::Decompiler

Inherits:
Object
  • Object
show all
Defined in:
lib/twee2/decompiler.rb

Class Method Summary collapse

Class Method Details

.decompile(url) ⇒ Object

Raises:



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# File 'lib/twee2/decompiler.rb', line 10

def self.decompile(url)
  result = ''
  # Load the compiled HTML and sanity-check it
  html = Nokogiri::HTML(open(url))
  raise(DecompilationFailedException, 'tw-storydata not found') unless storydata = html.at_css('tw-storydata')
  # Extract the tw-storydata#name (StoryTitle) and #startnode
  result << "::StoryTitle\n#{storydata[:name].strip}\n\n"
  startnode_pid, startnode_name = storydata[:startnode].strip, nil
  # Extract the custom CSS and Javascript, if applicable
  if (css = storydata.at_css('#twine-user-stylesheet')) && ((css_content = css.content.strip) != '')
    result << "::StoryCSS [stylesheet]\n#{css_content}\n\n"
  end
  if (js = storydata.at_css('#twine-user-script')) && ((js_content = js.content.strip) != '')
    result << "::StoryJS [script]\n#{js.content}\n\n"
  end
  # Extract each passage
  storydata.css('tw-passagedata').each do |passagedata|
    # Check if this is the start passage and record this accordingly
    startnode_name = passagedata[:name] if(startnode_pid == passagedata[:pid])
    # Write the passage out
    result << "::#{passagedata[:name].strip}"
    result << " [#{passagedata[:tags].strip}]" if passagedata[:tags].strip != ''
    result << " <#{passagedata[:position].strip}>" if passagedata[:position].strip != ''
    result << "\n#{tidyup_passagedata(passagedata.content.strip)}\n\n"
  end
  # Write the Twee2 settings out (compatability layer)
  result << "::Twee2Settings [twee2]\n"
  result << "@story_start_name = '#{startnode_name.gsub("'", "\\'")}'\n" if startnode_name
  result << "\n"
  # Return the result
  result
end