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<?php |
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/** |
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* @package s9e\TextFormatter |
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* @copyright Copyright (c) 2010-2018 The s9e Authors |
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* @license http://www.opensource.org/licenses/mit-license.php The MIT License |
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*/ |
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namespace s9e\TextFormatter\Plugins\BBCodes\Configurator; |
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use DOMDocument; |
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use DOMElement; |
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use DOMXPath; |
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use InvalidArgumentException; |
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use RuntimeException; |
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class Repository |
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{ |
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/** |
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* @var BBCodeMonkey Instance of BBCodeMonkey used to parse definitions |
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*/ |
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protected $bbcodeMonkey; |
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/** |
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* @var DOMDocument Repository document |
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*/ |
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protected $dom; |
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/** |
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* Constructor |
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* |
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* @param mixed $value Either a DOMDocument or the path to a repository's XML file |
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* @param BBCodeMonkey $bbcodeMonkey Instance of BBCodeMonkey used to parse definitions |
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*/ |
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public function __construct($value, BBCodeMonkey $bbcodeMonkey) |
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{ |
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$this->bbcodeMonkey = $bbcodeMonkey; |
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$this->dom = ($value instanceof DOMDocument) ? $value : $this->loadRepository($value); |
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} |
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/** |
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* Get a BBCode and its associated tag from this repository |
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* |
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* @param string $name Name of the entry in the repository |
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* @param array $vars Replacement variables |
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* @return array Array with three elements: "bbcode", "name" and "tag" |
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*/ |
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public function get($name, array $vars = []) |
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{ |
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// Everything before # should be a BBCode name |
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$name = preg_replace_callback( |
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'/^[^#]+/', |
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function ($m) |
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{ |
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return BBCode::normalizeName($m[0]); |
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}, |
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$name |
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); |
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$xpath = new DOMXPath($this->dom); |
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$node = $xpath->query('//bbcode[@name="' . htmlspecialchars($name) . '"]')->item(0); |
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if (!($node instanceof DOMElement)) |
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{ |
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throw new RuntimeException("Could not find '" . $name . "' in repository"); |
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} |
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// Clone the node so we don't end up modifying the node in the repository |
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$clonedNode = $node->cloneNode(true); |
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// Replace all the <var> descendants if applicable |
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foreach ($xpath->query('.//var', $clonedNode) as $varNode) |
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{ |
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$varName = $varNode->getAttribute('name'); |
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if (isset($vars[$varName])) |
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{ |
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$varNode->parentNode->replaceChild( |
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$this->dom->createTextNode($vars[$varName]), |
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$varNode |
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); |
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} |
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} |
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// Now we can parse the BBCode usage and prepare the template. |
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// Grab the content of the <usage> element then use BBCodeMonkey to parse it |
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$usage = $xpath->evaluate('string(usage)', $clonedNode); |
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$template = $xpath->evaluate('string(template)', $clonedNode); |
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$config = $this->bbcodeMonkey->create($usage, $template); |
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$bbcode = $config['bbcode']; |
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$bbcodeName = $config['bbcodeName']; |
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$tag = $config['tag']; |
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// Set the optional tag name |
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if ($node->hasAttribute('tagName')) |
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{ |
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$bbcode->tagName = $node->getAttribute('tagName'); |
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} |
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// Set the rules |
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foreach ($xpath->query('rules/*', $node) as $ruleNode) |
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{ |
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$methodName = $ruleNode->nodeName; |
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$args = []; |
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if ($ruleNode->textContent) |
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{ |
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$args[] = $ruleNode->textContent; |
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} |
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call_user_func_array([$tag->rules, $methodName], $args); |
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} |
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return [ |
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'bbcode' => $bbcode, |
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'bbcodeName' => $bbcodeName, |
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'tag' => $tag |
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]; |
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} |
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/** |
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* Create an exception for a bad repository file path |
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* |
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* @param mixed $filepath |
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* @return InvalidArgumentException |
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*/ |
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protected function createRepositoryException($filepath) |
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{ |
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return new InvalidArgumentException(var_export($filepath, true) . ' is not a valid BBCode repository file'); |
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} |
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/** |
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* Load a repository file into a DOMDocument |
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* |
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* @param string $filepath |
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* @return DOMDocument |
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*/ |
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protected function loadRepository($filepath) |
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{ |
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if (!file_exists($filepath)) |
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{ |
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throw $this->createRepositoryException($filepath); |
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} |
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$dom = new DOMDocument; |
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$dom->preserveWhiteSpace = false; |
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if (!$dom->loadXML(file_get_contents($filepath), LIBXML_NOERROR)) |
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{ |
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throw $this->createRepositoryException($filepath); |
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} |
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return $dom; |
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} |
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} |
s9e /
TextFormatter
