class Mindmapviz

# File lib/mindmapviz.rb, line 40
  def initialize(s, fields: %w(label shape), delimiter: ' # ', 
                 style: nil, debug: false, fill: '#ccffcc', 
                 stroke: '#999999', text_color: '#330055')
    

    if s =~ /<?mindmapviz / then
      
      raw_mm = s.clone
      s2 = raw_mm.slice!(/<\?mindmapviz [^>]+\?>/)

      # attributes being sought =>  root fields delimiter id
      attributes = Shellwords::shellwords(s).map {|x| key, 
                         value = x.split(/=/, 2); [key.to_sym, value]}.to_h
      
      h = {
        fields: fields.join(', '), 
        delimiter: delimiter
      }.merge attributes          

      s = if h[:root] then
        "\n\n" + h[:root] + "\n" + 
          raw_mm.strip.lines.map {|line| '  ' + line}.join
      else
        raw_mm
      end
      
      delimiter = h[:delimiter]
      fields = h[:fields].split(/ *, */)

    end
    
schema = "items[type, layout]/item[%s]" % fields.join(', ')
    
raw_doc =<<EOF
<?polyrex schema='#{schema}' delimiter='#{delimiter}'?>
type: graph
layout: neato
#{s}
EOF

    puts ('mindmapviz s: ' + s.inspect).debug if debug

    style ||= default_stylesheet()

    super(raw_doc, style: style, debug: debug, fill: fill, 
          stroke: stroke, text_color: text_color)
    @css = "
      .node ellipse {stroke: #{stroke}; fill: #{fill}}
      .node text {fill: #{text_color}}
      .edge path {stroke: #{stroke}}
      .edge polygon {stroke: #{stroke}; fill: #{stroke}}
    "
 
  end

# File lib/mindmapviz.rb, line 98
  def default_stylesheet()

<<STYLE
  node { 
    color: #ddaa66; 
    fillcolor: #{@fill};
    fontcolor: #{@text_color}; 
    fontname: 'Trebuchet MS'; 
    fontsize: 8; 
    margin: 0.0;
    penwidth: 1; 
    style: filled;
  }
  
  a node {
    color: #0011ee;   
    penwidth: 1;
  }

  edge {
    arrowsize: 0.5;
    color: #{@stroke}; 
    fontcolor: #444444; 
    fontname: Verdana; 
    fontsize: 8; 
    dir: none;
    weight: 1;
  }
STYLE

  end