XML::Atom::Syndication::Feed - class representing an Atom feed
    use XML::Atom::Syndication::Feed;
    use XML::Atom::Syndication::Entry;
    use XML::Atom::Syndication::Text;
    use XML::Atom::Syndication::Content;
    
    # create a feed
    my $feed = XML::Atom::Syndication::Feed->new;
    $feed->title('My Weblog');
    my $entry = XML::Atom::Syndication::Entry->new;
    my $title = XML::Atom::Syndication::Text->new(Name=>'title');
    $title->body('First Post');
    $entry->title($title);
    my $content = XML::Atom::Syndication::Content->new('Post Body');
    $entry->content($content);
    $feed->add_entry($entry);
    $feed->insert_entry($entry);
    print $feed->as_xml;
    
    # list entry titles of index.atom file
    my $feed2 = XML::Atom::Syndication::Feed->new('index.atom');
    my @entries = $feed->entries;
    print $_->title->body."\n" for @entries;
XML::Atom::Syndication::Feed element is the document (i.e.,
    top-level) element of an Atom Feed Document, acting as a container for
    metadata and data associated with the feed. Its element children consist of
    metadata elements followed by zero or more entry child elements.
XML::Atom::Syndication::Feed is a subclass of
    XML::Atom::Syndication::Object (via XML::Atom::Syndication:::Thing) that it
    inherits numerous methods from. You should already be familiar with this
    base class before proceeding.
  - Class->new(%params)
 
  - In addition to the keys recognized by its superclass
      (XML::Atom::Syndication::Object) this class recognizes a
      "Stream" element. The value of this
      element can be a SCALAR or FILEHANDLE (GLOB) to a valid Atom document. The
      "Stream" element takes precedence over
      the standard "Elem" element.
 
  - inner_atom($atom_markup_string)
 
  - This is a convenience method for quickly setting the child Atom elements
      of the feed with a string. The string must also be well-formed XML. This
      method will replaces any existing child elements. All elements are
      presumed to be in the same Atom namespace as the feed object.
    
This method is similar to the innerHTML property found in
        JavaScript.
   
  - author
 
  - Indicates the author of the feed.
    
This accessor returns a XML::Atom::Syndication::Person object.
        This element can be set using a string and hash reference or by passing
        in an object. See Working with Object Setters in
        XML::Atom::Syndication::Object for more detail.
   
  - category
 
  - Conveys information about a category associated with an feed.
    
This accessor returns a XML::Atom::Syndication::Category
        object. This element can be set using a string and hash reference or by
        passing in an object. See Working with Object Setters in
        XML::Atom::Syndication::Object for more detail.
   
  - contributor
 
  - Indicates a person or other entity who contributed to the feed.
    
This accessor returns a XML::Atom::Syndication::Person object.
        This element can be set using a string and hash reference or by passing
        in an object. See Working with Object Setters in
        XML::Atom::Syndication::Object for more detail.
   
  - generator
 
  - Identifies the agent used to generate a feed for debugging and other
      purposes.
    
This accessor returns a XML::Atom::Syndication::Generator
        object. This element can be set using a string and hash reference or by
        passing in an object. See Working with Object Setters in
        XML::Atom::Syndication::Object for more detail.
   
  - icon
 
  - An IRI reference [RFC3987] which identifies an image which provides iconic
      visual identification for a feed.
    
This accessor returns a string. You can set this attribute by
        passing in an optional string.
   
  - id
 
  - A permanent, universally unique identifier for a feed.
    
This accessor returns a string. You can set this attribute by
        passing in an optional string.
   
  - link
 
  - Defines a reference from an entry to a Web resource.
    
This accessor returns a XML::Atom::Syndication::Link object.
        This element can be set using a string and hash reference or by passing
        in an object. See Working with Object Setters in
        XML::Atom::Syndication::Object for more detail.
   
  - logo
 
  - An IRI reference [RFC3987] which identifies an image which provides visual
      identification for a feed.
    
This accessor returns a string. You can set this attribute by
        passing in an optional string.
   
  - published
 
  - A date indicating an instance in time associated with an event early in
      the life of the entry.
    
This accessor returns a string. You can set this attribute by
        passing in an optional string. Dates values MUST conform to the
        "date-time" production in [RFC3339].
   
  - rights
 
  - Conveys information about rights held in and over an entry or feed.
    
This accessor returns a XML::Atom::Syndication::Text object.
        This element can be set using a string and hash reference or by passing
        in an object. See Working with Object Setters in
        XML::Atom::Syndication::Object for more detail.
   
  - subtitle
 
  - Conveys a human-readable description or subtitle of a feed.
    
This accessor returns a XML::Atom::Syndication::Text object.
        This element can be set using a string and hash reference or by passing
        in an object. See Working with Object Setters in
        XML::Atom::Syndication::Object for more detail.
   
  - title
 
  - Conveys a human-readable title for a feed.
    
This accessor returns a XML::Atom::Syndication::Text object.
        This element can be set using a string and hash reference or by passing
        in an object. See Working with Object Setters in
        XML::Atom::Syndication::Object for more detail.
   
  - updated
 
  - The most recent instance in time when an entry or feed was modified in a
      way the publisher considers significant.
    
This accessor returns a string. You can set this attribute by
        passing in an optional string. Dates values MUST conform to the
        "date-time" production in [RFC3339].
   
  - $feed->add_entry($entry)
 
  - Appends a XML::Atom::Syndication::Entry object to the feed. The new entry
      is placed after all existing entries in the feed
 
  - $feed->insert_entry($entry)
 
  - Inserts a XML::Atom::Syndication::Entry object before all other
      existing entries in the feed.
 
  - $feed->entries
 
  - Returns an ordered ARRAY of XML::Atom::Syndication::Entry objects
      representing the feed's entries.
 
  - copyright
 
  - This element was renamed "rights" in
      version 1.0 of the format.
 
  - created
 
  - This element was removed from version 1.0 of the format.
 
  - info
 
  - This element was removed from version 1.0 of the format.
 
  - modified
 
  - This element was renamed "updated" in
      version 1.0 of the format.
 
  - tagline
 
  - This element was renamed "subtitle" in
      version 1.0 of the format.
 
  - version
 
  - This attribute was removed from version 1.0 of the format.
 
Please see the XML::Atom::Syndication manpage for author,
    copyright, and license information.
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