Class: Rabbit::Parser::RD::RD2RabbitVisitor

Inherits:
Visitor
  • Object
show all
Extended by:
Forwardable
Includes:
RD::MethodParse, Element, PauseSupport
Defined in:
lib/rabbit/parser/rd/rd2rabbit-lib.rb

Constant Summary collapse

SYSTEM_NAME =
"RD2RabbitLVisitor"
SYSTEM_VERSION =
"0.0.2"
VERSION =
::RD::Version.new_from_version_string(SYSTEM_NAME,
SYSTEM_VERSION)
OUTPUT_SUFFIX =

must-have constants

""
INCLUDE_SUFFIX =
["rabbit", "rb"]
EXTENSIONS =
{
  "refer" => Ext::Refer,
  "inline_verbatim" => Ext::InlineVerbatim,
  "block_verbatim" => Ext::BlockVerbatim,
}

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from PauseSupport

#burn_out_pause_targets, #pause_targets, #register_pause, #unregister_pause

Methods inherited from Visitor

version

Constructor Details

#initialize(canvas) ⇒ RD2RabbitVisitor

Returns a new instance of RD2RabbitVisitor.


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# File 'lib/rabbit/parser/rd/rd2rabbit-lib.rb', line 59

def initialize(canvas)
  @canvas = canvas

  @slides = []
  @slide = nil
  @slide_property_mode = false
  @index = {}

  init_extensions
  super()
end

Instance Attribute Details

#canvasObject (readonly)

Returns the value of attribute canvas.


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# File 'lib/rabbit/parser/rd/rd2rabbit-lib.rb', line 58

def canvas
  @canvas
end

Instance Method Details

#apply_to_Code(element, content) ⇒ Object


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# File 'lib/rabbit/parser/rd/rd2rabbit-lib.rb', line 244

def apply_to_Code(element, content)
  Code.new(content)
end

#apply_to_DescList(element, items) ⇒ Object


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# File 'lib/rabbit/parser/rd/rd2rabbit-lib.rb', line 173

def apply_to_DescList(element, items)
  apply_to_List(element, items, DescriptionList)
end

#apply_to_DescListItem(element, term, description) ⇒ Object


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# File 'lib/rabbit/parser/rd/rd2rabbit-lib.rb', line 200

def apply_to_DescListItem(element, term, description)
  desc_term = DescriptionTerm.new(Paragraph.new(term))
  desc_content = DescriptionContent.new
  apply_to_ListItem(element, description, desc_content)
  DescriptionListItem.new(desc_term, desc_content)
end

#apply_to_DocumentElement(element, contents) ⇒ Object


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# File 'lib/rabbit/parser/rd/rd2rabbit-lib.rb', line 77

def apply_to_DocumentElement(element, contents)
  target = nil
  mode = :ignore
  contents.each do |content|
    case content
    when :no_element
      next
    when nil
      mode = :ignore
    when Slide
      target = content.body
      @canvas << content
      mode = :display
    when TitleSlide
      target = content
      @canvas << content
      mode = :display
    when SlidePropertySetter, NoteSetter
      target = content
      mode = :property
    else
      case mode
      when :display
        target << content
      when :property
        target.apply(content)
      end
    end
  end
  burn_out_pause_targets
  burn_out_foot_texts
end

#apply_to_Emphasis(element, content) ⇒ Object


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# File 'lib/rabbit/parser/rd/rd2rabbit-lib.rb', line 240

def apply_to_Emphasis(element, content)
  Emphasis.new(content)
end

#apply_to_EnumList(element, items) ⇒ Object


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# File 'lib/rabbit/parser/rd/rd2rabbit-lib.rb', line 165

def apply_to_EnumList(element, items)
  i = 1
  apply_to_List(element, items, EnumList) do |list, item|
    item.order = i
    i += 1
  end
end

#apply_to_EnumListItem(element, content) ⇒ Object


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# File 'lib/rabbit/parser/rd/rd2rabbit-lib.rb', line 196

def apply_to_EnumListItem(element, content)
  apply_to_ListItem(element, content, EnumListItem.new)
end

#apply_to_Footnote(element, content) ⇒ Object


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# File 'lib/rabbit/parser/rd/rd2rabbit-lib.rb', line 271

def apply_to_Footnote(element, content)
  if @slide.nil?
    Text.new("")
  else
    num = get_footnote_num(element)
    unless num
      raise ArgumentError, "[BUG?] #{element} is not registered."
    end
    add_foot_text(num, content)
    Footnote.new(num)
  end
end

#apply_to_Foottext(element, content) ⇒ Object

Raises:

  • (ArgumentError)

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# File 'lib/rabbit/parser/rd/rd2rabbit-lib.rb', line 284

def apply_to_Foottext(element, content)
  num = get_footnote_num(element)
  raise ArgumentError, "[BUG] #{element} isn't registered." unless num
  FootText.new(num, content)
end

#apply_to_Headline(element, title) ⇒ Object


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# File 'lib/rabbit/parser/rd/rd2rabbit-lib.rb', line 110

def apply_to_Headline(element, title)
  anchor = get_anchor(element)
  slide, @slide = @slide, nil
  case element.level
  when 1
    if @slides.empty?
      @slide = TitleSlide.new(Title.new(title))
    else
      @slide = Slide.new(HeadLine.new(title))
      @slide << Body.new
    end
    @foot_texts << []
    @slides << @slide
    @slide
  when 2
    if /\Anote\z/i =~ title.first.text
      NoteSetter.new(@slides.last)
    else
      SlidePropertySetter.new(@slides.last)
    end
  else
    nil
  end
end

#apply_to_Include(element) ⇒ Object


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# File 'lib/rabbit/parser/rd/rd2rabbit-lib.rb', line 135

def apply_to_Include(element)
  paths = element.tree.include_paths
  fname = search_file(element.filename, paths, @include_suffix)
  if fname
    File.open(fname) do |f|
      instance_eval(f.read, fname, 0)
    end
  end
end

#apply_to_Index(element, content) ⇒ Object


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# File 'lib/rabbit/parser/rd/rd2rabbit-lib.rb', line 256

def apply_to_Index(element, content)
  Index.new(content)
end

#apply_to_ItemList(element, items) ⇒ Object


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# File 'lib/rabbit/parser/rd/rd2rabbit-lib.rb', line 161

def apply_to_ItemList(element, items)
  apply_to_List(element, items, ItemList)
end

#apply_to_ItemListItem(element, content) ⇒ Object


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# File 'lib/rabbit/parser/rd/rd2rabbit-lib.rb', line 192

def apply_to_ItemListItem(element, content)
  apply_to_ListItem(element, content, ItemListItem.new)
end

#apply_to_Keyboard(element, content) ⇒ Object


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# File 'lib/rabbit/parser/rd/rd2rabbit-lib.rb', line 252

def apply_to_Keyboard(element, content)
  Keyboard.new(content)
end

#apply_to_List(element, items, klass) ⇒ Object


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# File 'lib/rabbit/parser/rd/rd2rabbit-lib.rb', line 181

def apply_to_List(element, items, klass)
  list = klass.new()
  items.each do |item|
    list << item
    if block_given?
      yield(list, item)
    end
  end
  list
end

#apply_to_ListItem(element, contents, item) ⇒ Object


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# File 'lib/rabbit/parser/rd/rd2rabbit-lib.rb', line 214

def apply_to_ListItem(element, contents, item)
  contents.each do |content|
    item << content
  end
  waited_paragraphs = item.elements.find_all do |element|
    element.is_a?(Paragraph) and element.have_wait_tag?
  end
  unless waited_paragraphs.empty?
    waited_paragraphs.each do |paragraph|
      paragraph.default_visible = true
      paragraph.clear_theme
      unregister_pause(paragraph)
    end

    item.default_visible = false
    item.clear_theme
    register_pause(item)
  end
  item
end

#apply_to_MethodList(element, items) ⇒ Object


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# File 'lib/rabbit/parser/rd/rd2rabbit-lib.rb', line 177

def apply_to_MethodList(element, items)
  apply_to_List(element, items, MethodList)
end

#apply_to_MethodListItem(element, term, description) ⇒ Object


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# File 'lib/rabbit/parser/rd/rd2rabbit-lib.rb', line 207

def apply_to_MethodListItem(element, term, description)
  method_term = parse_method(term)
  method_description = MethodDescription.new
  apply_to_ListItem(element, description, method_description)
  MethodListItem.new(method_term, method_description)
end

#apply_to_Reference_with_RDLabel(element, content) ⇒ Object


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# File 'lib/rabbit/parser/rd/rd2rabbit-lib.rb', line 260

def apply_to_Reference_with_RDLabel(element, content)
  source = content.collect{|elem| elem.text}
  apply_to_extension("refer", element.label, source, content)
end

#apply_to_Reference_with_URL(element, content) ⇒ Object


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# File 'lib/rabbit/parser/rd/rd2rabbit-lib.rb', line 265

def apply_to_Reference_with_URL(element, content)
  ref = ReferText.new(content)
  ref.to = element.label.url
  ref
end

#apply_to_String(str) ⇒ Object


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# File 'lib/rabbit/parser/rd/rd2rabbit-lib.rb', line 297

def apply_to_String(str)
  Parser::Ext::Escape.escape_meta_character(str)
end

#apply_to_StringElement(element) ⇒ Object


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# File 'lib/rabbit/parser/rd/rd2rabbit-lib.rb', line 235

def apply_to_StringElement(element)
  content = element.content.gsub(/\n\s*/, '')
  Text.new(apply_to_String(content))
end

#apply_to_TextBlock(element, content) ⇒ Object


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# File 'lib/rabbit/parser/rd/rd2rabbit-lib.rb', line 145

def apply_to_TextBlock(element, content)
  paragraph = Paragraph.new(content)
  register_pause(paragraph) if paragraph.have_wait_tag?
  paragraph
end

#apply_to_Var(element, content) ⇒ Object


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# File 'lib/rabbit/parser/rd/rd2rabbit-lib.rb', line 248

def apply_to_Var(element, content)
  Variable.new(content)
end

#apply_to_Verb(element) ⇒ Object


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# File 'lib/rabbit/parser/rd/rd2rabbit-lib.rb', line 290

def apply_to_Verb(element)
  source = apply_to_String(element.content)
  content = element.content
  apply_to_extension("inline_verbatim", element.to_label,
                     source, content)
end

#apply_to_Verbatim(element) ⇒ Object


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# File 'lib/rabbit/parser/rd/rd2rabbit-lib.rb', line 151

def apply_to_Verbatim(element)
  content = []
  element.each_line do |line|
    content << line
  end
  content_str = content.join("")
  /\A#\s*([^\n]+)(?:\n)?(?m:(.*)?)\z/ =~ content_str
  apply_to_extension("block_verbatim", $1, $2.to_s, content_str)
end

#create_have_text_element(klass, content) ⇒ Object


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# File 'lib/rabbit/parser/rd/rd2rabbit-lib.rb', line 301

def create_have_text_element(klass, content)
  raise "Why???" if content.size > 1
  klass.new(content.collect{|x| x.text}.join(""))
end

#current_bodyObject


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# File 'lib/rabbit/parser/rd/rd2rabbit-lib.rb', line 306

def current_body
  @slide.body
end

#visit(tree) ⇒ Object


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# File 'lib/rabbit/parser/rd/rd2rabbit-lib.rb', line 71

def visit(tree)
  prepare_labels(tree, "label-")
  prepare_footnotes(tree)
  super(tree)
end