Class: AsciidoctorDitaMap::Cli

Inherits:
Object
  • Object
show all
Defined in:
lib/dita-map/cli.rb

Instance Method Summary collapse

Constructor Details

#initialize(name, argv) ⇒ Cli

Returns a new instance of Cli.



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# File 'lib/dita-map/cli.rb', line 33

def initialize name, argv
  @attr = []
  @opts = {
    :id => true,
    :navtitle => true,
    :output => false,
    :title => true,
    :type => true
  }
  @prep = []
  @name = name
  @args = self.parse_args argv
end

Instance Method Details

#convert_map(input, base_dir, prepended = '') ⇒ Object 



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# File 'lib/dita-map/cli.rb', line 150

def convert_map input, base_dir, prepended = ''
  result = ''

  include_files, map_title, document_id = parse_map prepended + input, base_dir

  xml = REXML::Document.new
  xml.context[:attribute_quote] = :quote
  xml << REXML::XMLDecl.new('1.0', 'utf-8')
  xml << REXML::DocType.new('map', 'PUBLIC "-//OASIS//DTD DITA Map//EN" "map.dtd"')

  if document_id and @opts[:id]
    xml_root  = xml.add_element('map', { 'id' => document_id })
  else
    xml_root  = xml.add_element('map')
  end

  if map_title and @opts[:title]
    xml_title = xml_root.add_element('title')
    xml_title.text = map_title
  end

  stack = [{ :offset => 0, :element => xml_root }]

  include_files.each do |file|
    target      = file[:target]
    offset      = file[:offset]
    last_offset = stack.last[:offset]

    if offset == 0
      warn "#{@name}: warning: Invalid leveloffset - expected 1, got 0: #{target}"
      offset = 1
    elsif offset > last_offset and offset - last_offset > 1
      expected_offset = last_offset + 1
      warn "#{@name}: warning: Invalid leveloffset - expected #{expected_offset}, got #{offset}: #{target}"
      offset = expected_offset
    end

    while stack.last[:offset] >= offset
      stack.pop
    end

    xml_parent   = stack.last[:element]

    if @opts[:navtitle] or @opts[:type]
      begin
        include_title, include_type = parse_topic prepended + File.read(base_dir + target)
      rescue
        warn "#{@name}: warning: Unable to read included file: #{base_dir + target}"
        include_title, include_type = nil, nil
      end
    end

    if include_type == 'map'
      file_name          = target.sub(/\.adoc$/, '.ditamap')
      attributes         = { 'href' => file_name, 'format' => 'ditamap' }
      attributes['type'] = include_type if @opts[:type]

      xml_element = xml_parent.add_element('mapref', attributes)
    else
      file_name = target.sub(/\.adoc$/, '.dita')
      attributes             = { 'href' => file_name }
      attributes['navtitle'] = include_title if include_title and @opts[:navtitle]
      attributes['type']     = include_type if include_type and @opts[:type]

      xml_element = xml_parent.add_element('topicref', attributes)
    end

    stack.push ({ :offset => offset, :element => xml_element })
  end

  formatter = REXML::Formatters::Pretty.new(2, true)
  formatter.compact = true
  formatter.write(xml, result)

  result << "\n"

  return result
end

#parse_args(argv) ⇒ Object 



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# File 'lib/dita-map/cli.rb', line 47

def parse_args argv
  parser = OptionParser.new do |opt|
    opt.banner  = "Usage: #{@name} [OPTION...] [FILE...]\n"
    opt.banner += "       #{@name} -h|-v\n\n"

    opt.on('-o', '--out-file FILE', 'specify the output file; by default, the output file name is based on the input file') do |output|
      @opts[:output] = (output.strip == '-') ? $stdout : output
    end

    opt.on('-a', '--attribute ATTRIBUTE', 'set a document attribute in the form of name, name!, or name=value pair; can be supplied multiple times') do |value|
      @attr.append value
    end

    opt.separator ''

    opt.on('-p', '--prepend-file FILE', 'prepend a file to all input files; can be supplied multiple times') do |file|
      raise OptionParser::InvalidArgument, "not a file: #{file}" unless File.exist? file and File.file? file
      raise OptionParser::InvalidArgument, "file not readable: #{file}" unless File.readable? file

      @prep.append file
    end

    opt.separator ''

    opt.on('-I', '--no-id', 'do not generate the map id attribute') do
      @opts[:id] = false
    end

    opt.on('-M', '--no-maptitle', 'do not generate the map title') do
      @opts[:title] = false
    end

    opt.on('-N', '--no-navtitle', 'do not generate the navtitle attribute') do
      @opts[:navtitle] = false
    end

    opt.on('-T', '--no-type', 'do not generate the type attribute') do
      @opts[:type] = false
    end

    opt.separator ''

    opt.on('-h', '--help', 'display this help and exit') do
      puts opt
      exit
    end

    opt.on('-v', '--version', 'display version information and exit') do
      puts "#{@name} #{VERSION}"
      exit
    end
  end

  args = parser.parse argv

  if args.length == 0 or args[0].strip == '-'
    return [$stdin]
  end

  args.each do |file|
    raise OptionParser::InvalidArgument, "not a file: #{file}" unless File.exist? file and File.file? file
    raise OptionParser::InvalidArgument, "file not readable: #{file}" unless File.readable? file
  end

  return args
end

#parse_map(input, base_dir) ⇒ Object 



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# File 'lib/dita-map/cli.rb', line 136

def parse_map input, base_dir
  Asciidoctor::Extensions.register do
    include_processor CatalogIncludeDirectives
  end

  doc = Asciidoctor.load input, safe: :safe, catalog_assets: true, attributes: @attr, base_dir: base_dir

  include_files  = doc.catalog[:include_files] ? doc.catalog[:include_files] : []
  document_title = doc.title ? doc.title.gsub(/<[^>]*>/, '') : nil
  document_id    = doc.id ? doc.id.gsub(/["']/, '') : nil

  return include_files, document_title, document_id
end

#parse_topic(input) ⇒ Object 



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# File 'lib/dita-map/cli.rb', line 114

def parse_topic input
  doc = Asciidoctor.load input, safe: :secure, attributes: @attr
  att = doc.attributes

  document_title = doc.title ? doc.title.gsub(/<[^>]*>/, '') : nil
  document_type  = att['_mod-docs-content-type'] ? att['_mod-docs-content-type'].downcase : nil
  document_type  = att['_content-type'] ? att['_content-type'].downcase : nil unless document_type
  document_type  = att['_module-type'] ? att['_module-type'].downcase : nil unless document_type

  if document_type
    document_type.sub!(/^assembly$/, 'concept')
    document_type.sub!(/^procedure$/, 'task')
  end

  unless ['concept', 'reference', 'task', 'map'].include? document_type
    document_type = nil
  end

  return document_title, document_type
end

#run ⇒ Object 



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# File 'lib/dita-map/cli.rb', line 229

def run
  prepended = ''

  @prep.each do |file|
    prepended << File.read(file)
    prepended << "\n"
  end

  @args.each do |file|
    if file == $stdin
      base_dir = Pathname.new(Dir.pwd).expand_path
      input    = $stdin.read
      output   = @opts[:output] ? @opts[:output] : $stdout
    else
      base_dir = Pathname.new(file).dirname.expand_path
      input    = File.read(file)
      output   = @opts[:output] ? @opts[:output] : Pathname.new(file).sub_ext('.ditamap').to_s
    end

    result = convert_map input, base_dir, prepended

    if output == $stdout
      $stdout.write result
    else
      File.write output, result
    end
  end
end