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Node.php
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Node.php
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<?php
namespace Shellbox\ShellParser;
use Wikimedia\WikiPEG\InternalError;
class Node {
/** @var string The node type */
public $type;
/** @var array The node contents (children) */
public $contents;
/**
* @param string $type
* @param array|Node|string $contents
*/
public function __construct( $type, $contents ) {
$this->type = $type;
if ( !is_array( $contents ) ) {
$contents = [ $contents ];
}
foreach ( $contents as $i => $node ) {
if ( !$node instanceof Node && !is_string( $node ) && !is_array( $node ) ) {
$type = gettype( $node );
throw new InternalError( 'ShellParser error: node contents validation failed. ' .
"Item $i is a $type." );
}
}
$this->contents = $contents;
}
/**
* Dump a string representation for testing or debugging
*
* @return string
*/
public function dump() {
$inner = self::dumpArray( $this->contents );
return "<{$this->type}>$inner</{$this->type}>";
}
/**
* Dump a string representation of a node array for testing or debugging
*
* @param array $array
* @return string
*/
public static function dumpArray( $array ) {
$inner = '';
foreach ( $array as $node ) {
if ( $node instanceof Node ) {
$inner .= $node->dump();
} elseif ( is_array( $node ) ) {
$inner .= self::dumpArray( $node );
} else {
$inner .= htmlspecialchars( $node, ENT_COMPAT );
}
}
return $inner;
}
public function traverse( callable $visitor, ...$args ) {
$visitor( $this, ...$args );
self::traverseArray( $visitor, $this->contents, ...$args );
}
public static function traverseArray( callable $visitor, $array, ...$args ) {
foreach ( $array as $node ) {
if ( $node instanceof Node ) {
$node->traverse( $visitor, ...$args );
} elseif ( is_array( $node ) ) {
self::traverseArray( $visitor, $node, ...$args );
} else {
$visitor( $node, ...$args );
}
}
}
}

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Mime Type
text/x-php
Expires
Aug 16 2026, 23:13 (11 w, 5 d ago)
Storage Engine
local-disk
Storage Format
Raw Data
Storage Handle
2c/dc/1bc997dcbc4fef6179e0683bd1ca
Default Alt Text
Node.php (1 KB)

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