Class: Nokogiri::XML::Element

Inherits:
Object
  • Object
show all
Defined in:
lib/html2haml/html.rb

Overview

See Also:

Instance Method Summary collapse

Instance Method Details

#to_haml(tabs, options) ⇒ Object

See Also:

  • Html2haml::HTML::Node#to_haml

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# File 'lib/html2haml/html.rb', line 292

def to_haml(tabs, options)
  return "" if converted_to_haml

  if name == "script" &&
      (attr_hash['type'].nil? || attr_hash['type'].to_s == "text/javascript") &&
      (attr_hash.keys - ['type']).empty?
    return to_haml_filter(:javascript, tabs, options)
  elsif name == "style" &&
      (attr_hash['type'].nil? || attr_hash['type'].to_s == "text/css") &&
      (attr_hash.keys - ['type']).empty?
    return to_haml_filter(:css, tabs, options)
  end

  output = tabulate(tabs)
  if options[:erb] && HAML_TAGS.include?(name)
    case name
    when "haml_loud"
      lines = CGI.unescapeHTML(inner_text).split("\n").
        map {|s| s.rstrip}.reject {|s| s.strip.empty?}

      if attribute("raw")
        lines.first.gsub!(/^[ \t]*/, "!= ")
      else
        lines.first.gsub!(/^[ \t]*/, "= ")
      end

      if lines.size > 1 # Multiline script block
        # Normalize the indentation so that the last line is the base
        indent_str = lines.last[/^[ \t]*/]
        indent_re = /^[ \t]{0,#{indent_str.count(" ") + 8 * indent_str.count("\t")}}/
        lines.map! {|s| s.gsub!(indent_re, '')}

        # Add an extra "  " to make it indented relative to "= "
        lines[1..-1].each {|s| s.gsub!(/^/, "  ")}

        # Add | at the end, properly aligned
        length = lines.map {|s| s.size}.max + 1
        lines.map! {|s| "%#{-length}s|" % s}

        if next_sibling && next_sibling.is_a?(Nokogiri::XML::Element) && next_sibling.name == "haml_loud" &&
            next_sibling.inner_text.split("\n").reject {|s| s.strip.empty?}.size > 1
          lines << "-#"
        end
      end
      return lines.map {|s| output + s + "\n"}.join
    when "haml_silent"
      return CGI.unescapeHTML(inner_text).split("\n").map do |line|
        next "" if line.strip.empty?
        "#{output}- #{line.strip}\n"
      end.join
    when "haml_block"
      return render_children("", tabs, options)
    end
  end

  if self.next && self.next.text? && self.next.content =~ /\A[^\s]/
    if self.previous.nil? || self.previous.text? &&
        (self.previous.content =~ /[^\s]\Z/ ||
         self.previous.content =~ /\A\s*\Z/ && self.previous.previous.nil?)
      nuke_outer_whitespace = true
    else
      output << "= succeed #{self.next.content.slice!(/\A[^\s]+/).dump} do\n"
      tabs += 1
      output << tabulate(tabs)
      #empty the text node since it was inserted into the block
      self.next.content = ""
    end
  end

  output << "%#{name}" unless name.to_s == 'div' &&
    (static_id?(options) ||
     static_classname?(options) &&
     attr_hash['class'].to_s.split(' ').any?(&method(:haml_css_attr?)))

  if attr_hash

    if static_id?(options)
      output << "##{attr_hash['id'].to_s}"
      remove_attribute('id')
    end
    if static_classname?(options)
      leftover = attr_hash['class'].to_s.split(' ').reject do |c|
        next unless haml_css_attr?(c)
        output << ".#{c}"
      end
      remove_attribute('class')
      set_attribute('class', leftover.join(' ')) unless leftover.empty?
    end
    output << haml_attributes(options) if attr_hash.length > 0
  end

  output << ">" if nuke_outer_whitespace
  output << "/" if to_xhtml.end_with?("/>")

  if children && children.size == 1
    child = children.first
    if child.is_a?(::Nokogiri::XML::Text)
      if !child.to_s.include?("\n")
        text = child.to_haml(tabs + 1, options)
        return output + " " + text.lstrip.gsub(/^\\/, '') unless text.chomp.include?("\n") || text.empty?
        return output + "\n" + text
      elsif ["pre", "textarea"].include?(name) ||
          (name == "code" && parent.is_a?(::Nokogiri::XML::Element) && parent.name == "pre")
        return output + "\n#{tabulate(tabs + 1)}:preserve\n" +
          inner_text.gsub(/^/, tabulate(tabs + 2))
      end
    elsif child.is_a?(::Nokogiri::XML::Element) && child.name == "haml_loud"
      return output + child.to_haml(tabs + 1, options).lstrip
    end
  end

  render_children(output + "\n", tabs, options)
end