Class: XML_Feed_Parser_Type

string addBase( string $link, DOMElement $element)

Gets us the xml:base data and then processes that with regard to our current link.

Parameters:

void combineBases( string $base, string $link)

We have other methods which will traverse the DOM and work out the different xml:base declarations we need to be aware of. We then need to combine them.

If a declaration starts with a protocol then we restart the string. If it starts with a / then we add on to the domain name. Otherwise we simply tag it on to the end.

Parameters:

int count( string $type)

This function will tell us how many times the element $type appears at this level of the feed.

Parameters:

string|array|false getCategory( string $call, array $arguments)

There is no single way of declaring a category in RSS1/1.1 as there is in RSS2

and Atom. Instead the usual approach is to use the dublin core namespace to declare categories. For example delicious use both: <dc:subject>PEAR</dc:subject> and: <taxo:topics><rdf:Bag> <rdf:li resource="http://del.icio.us/tag/PEAR" /></rdf:Bag></taxo:topics> to declare a categorisation of 'PEAR'.

We need to be sensitive to this where possible.

Overridden in child classes as:

XML_Feed_Parser_Atom::getCategory()

A feed or entry can have any number of categories. A category can have the attributes term, scheme and label.

XML_Feed_Parser_RSS2::getCategory()

The category element is a simple text construct which can occur any number of times. We allow access by offset or access to an array of results.

Parameters:

string|false getContent( )

The official way to include full content in an RSS1 entry is to use the content module's element 'encoded', and RSS2 feeds often duplicate that.

Often, however, the 'description' element is used instead. We will offer that as a fallback. Atom uses its own approach and overrides this method.

Overridden in child classes as:

XML_Feed_Parser_AtomElement::getContent()

This element may or may not be present. It cannot be present more than once. It may have a 'src' attribute, in which case there's no content If not present, then the entry must have link with rel="alternate".

int|false getDate( string $method, array $arguments)

Get a date construct. We use PHP's strtotime to return it as a unix datetime

Parameters:

XML_Feed_Parser_RSS1Element getEntryByOffset( int $offset)

Pretty fundamental!

Parameters:

string getText( string $method, [array $arguments = array()])

Get a text construct.

Overridden in child classes as:

XML_Feed_Parser_Atom::getText()

Get a text construct. When calling this method, the two arguments allowed are 'offset' and 'attribute', so $parser->subtitle() would return the content of the element, while $parser->subtitle(false, 'type') would return the value of the type attribute.

Parameters:

bool hasKey( )

Checks if this element has a particular child element.

string processXHTMLAttributes( DOMElement $node)

We need a couple of methods to access XHTML content stored in feeds.

This is because we dereference all xml:base references before returning the element. This method handles the attributes.

Parameters:

string traverseNode( DOMElement $node)

We need a couple of methods to access XHTML content stored in feeds.

This is because we dereference all xml:base references before returning the element. This method recurs through the tree descending from the node and builds our string

Parameters: