class RDoc::Markup::Formatter

# File lib/rdoc/markup/formatter.rb, line 27
def self.gen_relative_url(path, target)
  from        = File.dirname path
  to, to_file = File.split target

  from = from.split "/"
  to   = to.split "/"

  from.delete '.'
  to.delete '.'

  while from.size > 0 and to.size > 0 and from[0] == to[0] do
    from.shift
    to.shift
  end

  from.fill ".."
  from.concat to
  from << to_file
  File.join(*from)
end

# File lib/rdoc/markup/formatter.rb, line 51
def initialize(options, markup = nil)
  @options = options

  @markup = markup || RDoc::Markup.new

  @from_path = '.'
end

# File lib/rdoc/markup/formatter.rb, line 62
def accept_document(document)
  document.parts.each do |item|
    case item
    when RDoc::Markup::Document then # HACK
      accept_document item
    else
      item.accept self
    end
  end
end

# File lib/rdoc/markup/formatter.rb, line 76
def add_regexp_handling_RDOCLINK
  @markup.add_regexp_handling(/rdoc-[a-z]+:[^\s\]]+/, :RDOCLINK)
end

# File lib/rdoc/markup/formatter.rb, line 83
def annotate(tag)
  tag
end

# File lib/rdoc/markup/formatter.rb, line 96
def apply_regexp_handling(text)
  matched = []
  @markup.regexp_handlings.each_with_index do |(pattern, name), priority|
    text.scan(pattern) do
      m = Regexp.last_match
      idx = m[1] ? 1 : 0
      matched << [m.begin(idx), m.end(idx), m[idx], name, priority]
    end
  end
  # If the start positions are the same, prefer the one with higher priority (registered earlier one)
  matched.sort_by! {|beg_pos, _, _, _, priority| [beg_pos, priority] }

  chars = text.chars
  pos = 0
  output = []
  matched.each do |beg_pos, end_pos, s, name|
    next if beg_pos < pos

    output << [chars[pos...beg_pos].join, false] if beg_pos != pos
    handled = public_send(:"handle_regexp_#{name}", s)
    output << [handled, true]
    pos = end_pos
  end

  output << [chars[pos..].join, false] if pos < chars.size
  output
end

# File lib/rdoc/markup/formatter.rb, line 90
def convert(content)
  @markup.convert content, self
end

# File lib/rdoc/markup/formatter.rb, line 242
def convert_string(string)
  string
end

# File lib/rdoc/markup/formatter.rb, line 157
def handle_BOLD(nodes)
  traverse_inline_nodes(nodes)
end

# File lib/rdoc/markup/formatter.rb, line 171
def handle_BOLD_WORD(word)
  handle_PLAIN_TEXT(word)
end

# File lib/rdoc/markup/formatter.rb, line 164
def handle_EM(nodes)
  traverse_inline_nodes(nodes)
end

# File lib/rdoc/markup/formatter.rb, line 178
def handle_EM_WORD(word)
  handle_PLAIN_TEXT(word)
end

# File lib/rdoc/markup/formatter.rb, line 151
def handle_HARD_BREAK
end

# File lib/rdoc/markup/formatter.rb, line 127
def handle_PLAIN_TEXT(text)
end

# File lib/rdoc/markup/formatter.rb, line 133
def handle_REGEXP_HANDLING_TEXT(text)
end

# File lib/rdoc/markup/formatter.rb, line 192
def handle_STRIKE(nodes)
  traverse_inline_nodes(nodes)
end

# File lib/rdoc/markup/formatter.rb, line 139
def handle_TEXT(text)
  apply_regexp_handling(text).each do |part, converted|
    if converted
      handle_REGEXP_HANDLING_TEXT(part)
    else
      handle_PLAIN_TEXT(part)
    end
  end
end

# File lib/rdoc/markup/formatter.rb, line 201
def handle_TIDYLINK(label_part, url)
  traverse_inline_nodes(label_part)
end

# File lib/rdoc/markup/formatter.rb, line 185
def handle_TT(code)
  handle_PLAIN_TEXT(code)
end

# File lib/rdoc/markup/formatter.rb, line 207
def handle_inline(text)
  nodes = RDoc::Markup::InlineParser.new(text).parse
  traverse_inline_nodes(nodes)
end

# File lib/rdoc/markup/formatter.rb, line 254
def ignore *node
end

# File lib/rdoc/markup/formatter.rb, line 260
def parse_url(url)
  case url
  when /^rdoc-label:([^:]*)(?::(.*))?/ then
    scheme = 'link'
    path   = "##{$1}"
    id     = " id=\"#{$2}\"" if $2
  when /([A-Za-z]+):(.*)/ then
    scheme = $1.downcase
    path   = $2
  when /^#/ then
  else
    scheme = 'http'
    path   = url
    url    = url
  end

  if scheme == 'link' then
    url = if path[0, 1] == '#' then # is this meaningful?
            path
          else
            self.class.gen_relative_url @from_path, path
          end
  end

  [scheme, url, id]
end

# File lib/rdoc/markup/formatter.rb, line 215
def traverse_inline_nodes(nodes)
  nodes.each do |node|
    next handle_TEXT(node) if String === node
    case node[:type]
    when :TIDYLINK
      handle_TIDYLINK(node[:children], node[:url])
    when :HARD_BREAK
      handle_HARD_BREAK
    when :BOLD
      handle_BOLD(node[:children])
    when :BOLD_WORD
      handle_BOLD_WORD(node[:children][0] || '')
    when :EM
      handle_EM(node[:children])
    when :EM_WORD
      handle_EM_WORD(node[:children][0] || '')
    when :TT
      handle_TT(node[:children][0] || '')
    when :STRIKE
      handle_STRIKE(node[:children])
    end
  end
end

# File lib/rdoc/markup/formatter.rb, line 290
def tt?(tag)
  tag.bit == @tt_bit
end