DESCRIPTIONThis class represens a XML node. AnyEvent::XMPP should usually not require messing with the parse tree, but sometimes it is neccessary.
If you experience any need for messing with these and feel AnyEvent::XMPP should rather take care of it drop me a mail, feature request or most preferably a patch!
Every AnyEvent::XMPP::Node has a namespace, attributes, text and child nodes.
You can access these with the following methods:
- new ($ns, $el, $attrs, $parser)
- Creates a new AnyEvent::XMPP::Node object with the node tag name $el in the namespace URI $ns and the attributes $attrs. The $parser must be the instance of "AnyEvent::XMPP::Parser" which generated this node.
- The tag name of this node.
- Returns the namespace URI of this node.
- eq ($namespace_or_alias, $name) or eq ($node)
Returns true whether the current element matches the tag name $name
in the namespaces pointed at by $namespace_or_alias.
You can either pass an alias that was defined in AnyEvent::XMPP::Namespaces or pass an namespace URI in $namespace_or_alias. If no alias with the name $namespace_or_alias was found in AnyEvent::XMPP::Namespaces it will be interpreted as namespace URI.
The first argument to eq can also be another AnyEvent::XMPP::Node instance.
- eq_ns ($namespace_or_alias) or eq_ns ($node)
This method return true if the namespace of this instance of AnyEvent::XMPP::Node
matches the namespace described by $namespace_or_alias or the
namespace of the $node which has to be another AnyEvent::XMPP::Node instance.
See "eq" for the meaning of $namespace_or_alias.
- attr ($name)
- Returns the contents of the $name attribute.
- add_node ($node)
- Adds a sub-node to the current node.
- Returns a list of sub nodes.
- add_text ($string)
- Adds character data to the current node.
- Returns the text for this node.
- find_all (@path)
This method does a recursive descent through the sub-nodes and
fetches all nodes that match the last element of @path.
The elements of @path consist of a array reference to an array with two elements: the namespace key known by the $parser and the tagname we search for.
- write_on ($writer)
- This writes the current node out to the AnyEvent::XMPP::Writer object in $writer.
- as_string ()
This method returns the original character representation of this XML element
(and it's children nodes). Please note that the string is a unicode string,
meaning: to get octets use:
my $octets = encode ('UTF-8', $node->as_string);
Now you can roll stunts like this:
my $libxml = XML::LibXML->new; my $doc = $libxml->parse_string (encode ('UTF-8', $node->as_string ()));
(You can use your favorite XML parser :)
- append_raw ($string)
- This method is called by the parser to store original strings of this element.
- to_sax_events ($handler)
This method takes anything that can receive SAX events.
See also XML::GDOME::SAX::Builder or XML::Handler::BuildDOM
With this you can convert this node to any DOM level 2 structure you want:
my $builder = XML::LibXML::SAX::Builder->new; $node->to_sax_events ($builder); my $dom = $builder->result; print "Canonized: " . $dom->toStringC14N . "\n";
AUTHORRobin Redeker, "<elmex at ta-sa.org>", JID: "<elmex at jabber.org>"
COPYRIGHT & LICENSECopyright 2007, 2008 Robin Redeker, all rights reserved.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.