Class: Atom::Content::Html

Inherits:
Base show all
Defined in:
lib/atom.rb

Overview

Html content within an Atom document.

Instance Method Summary collapse

Methods inherited from Base

#==

Methods included from Xml::Parseable

#==, #accessor_name, #current_node_is?, included, #next_node_is?, #parse

Methods inherited from String

#constantize, #demodulize, #singularize

Constructor Details

#initialize(o) ⇒ Html

Creates a new Content::Html.

o

An XML::Reader or a HTML string.



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# File 'lib/atom.rb', line 263

def initialize(o)
  case o
  when XML::Reader
    super(o.read_string)
    parse(o, :once => true)
  when String
    super(o)
    @type = 'html'
  else
    raise ArgumentError, "Got #{o} which isn't a String or XML::Reader"
  end        
end

Instance Method Details

#to_xml(nodeonly = true, name = 'content', namespace = nil, namespace_map = Atom::Xml::NamespaceMap.new) ⇒ Object

:nodoc:



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# File 'lib/atom.rb', line 276

def to_xml(nodeonly = true, name = 'content', namespace = nil, namespace_map = Atom::Xml::NamespaceMap.new) # :nodoc:
  # Reject content that isn't UTF-8. If we don't check libxml just
  # fails silently and outputs the content element without any content. At
  # least checking here and raising an exception gives the caller a chance
  # to try and recitfy the situation.
  #

  if RUBY_VERSION =~ /^1.8/
    require 'iconv'
    # Convert from utf-8 to utf-8 as a way of making sure the content is
    # UTF-8.
    begin
      node = XML::Node.new("#{namespace_map.prefix(Atom::NAMESPACE, name)}")
      node << Iconv.iconv('utf-8', 'utf-8', self.to_s).first
      node['type'] = 'html'
      node['xml:lang'] = self.xml_lang if self.xml_lang
      node
    rescue Iconv::IllegalSequence => e
      raise SerializationError, "Content must be converted to UTF-8 before attempting to serialize to XML: #{e.message}."
    end

  else
    self_string = self.to_s

    if self_string.dup.force_encoding("UTF-8").valid_encoding?
      node = XML::Node.new("#{namespace_map.prefix(Atom::NAMESPACE, name)}")
      node << self_string
      node['type'] = 'html'
      node['xml:lang'] = self.xml_lang if self.xml_lang
      node
    else
      raise SerializationError, "Content must be converted to UTF-8 before attempting to serialize to XML: #{self}."
    end
  end
end