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PPNode.php
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PPNode.php
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<?php
/**
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
* @ingroup Parser
*/
namespace MediaWiki\Parser;
/**
* There are three types of nodes:
* * Tree nodes, which have a name and contain other nodes as children
* * Array nodes, which also contain other nodes but aren't considered part of a tree
* * Leaf nodes, which contain the actual data
*
* This interface provides access to the tree structure and to the contents of array nodes,
* but it does not provide access to the internal structure of leaf nodes. Access to leaf
* data is provided via two means:
* * PPFrame::expand(), which provides expanded text
* * The PPNode::split*() functions, which provide metadata about certain types of tree node
* @ingroup Parser
*/
interface PPNode {
/**
* Get an array-type node containing the children of this node.
* Returns false if this is not a tree node.
* @return false|PPNode
*/
public function getChildren();
/**
* Get the first child of a tree node. False if there isn't one.
*
* @return false|PPNode
*/
public function getFirstChild();
/**
* Get the next sibling of any node. False if there isn't one
* @return false|PPNode
*/
public function getNextSibling();
/**
* Get all children of this tree node which have a given name.
* Returns an array-type node, or false if this is not a tree node.
* @param string $type
* @return false|PPNode
*/
public function getChildrenOfType( $type );
/**
* Returns the length of the array, or false if this is not an array-type node
*/
public function getLength();
/**
* Returns an item of an array-type node
* @param int $i
* @return PPNode|false
*/
public function item( $i );
/**
* Get the name of this node. The following names are defined here:
*
* h A heading node.
* template A double-brace node.
* tplarg A triple-brace node.
* title The first argument to a template or tplarg node.
* part Subsequent arguments to a template or tplarg node.
* #nodelist An array-type node
*
* The subclass may define various other names for tree and leaf nodes.
* @return string
*/
public function getName();
/**
* Split a "<part>" node into an associative array containing:
* name PPNode name
* index String index
* value PPNode value
* @return array
*/
public function splitArg();
/**
* Split an "<ext>" node into an associative array containing name, attr, inner and close
* All values in the resulting array are PPNodes. Inner and close are optional.
* @return array
*/
public function splitExt();
/**
* Split an "<h>" node
* @return array
*/
public function splitHeading();
}
/** @deprecated class alias since 1.43 */
class_alias( PPNode::class, 'PPNode' );

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PPNode.php (3 KB)

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