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<?php |
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/* |
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* This file is part of the runopencode/sax, an RunOpenCode project. |
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* |
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* (c) 2017 RunOpenCode |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace RunOpenCode\Sax\Handler; |
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/** |
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* Class AbstractStackedSaxHandler |
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* |
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* Sax handler prototype with implemented elements stack. |
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* |
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* @package RunOpenCode\Sax\Handler |
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*/ |
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abstract class AbstractStackedSaxHandler extends AbstractSaxHandler |
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{ |
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/** |
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* @var array Elements stack |
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*/ |
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private $stack = []; |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function onElementStart($parser, $name, $attributes) |
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{ |
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array_push($this->stack, $name); |
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$this->handleOnElementStart($parser, $name, $attributes); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function onElementEnd($parser, $name) |
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{ |
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array_pop($this->stack); |
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$this->handleOnElementEnd($parser, $name); |
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} |
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/** |
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* Get current processing element name (uppercase), or null, if there is no element on stack |
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* (processing didn't started or it is ended) |
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* |
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* @return string|null |
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*/ |
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protected function getCurrentElementName() |
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{ |
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return (($count = count($this->stack)) > 0) ? $this->stack[$count-1] : null; |
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} |
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/** |
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* Get current stack trace. |
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* |
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* @return array |
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*/ |
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protected function getStack() |
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{ |
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return $this->stack; |
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} |
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/** |
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* Get current element stack size |
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* |
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* @return int |
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*/ |
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protected function getStackSize() |
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{ |
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return count($this->stack); |
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} |
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/** |
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* Element start handler, executed when XML tag is entered. |
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* |
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* @param resource $parser Parser handler. |
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* @param string $name Tag name. |
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* @param array $attributes Element attributes. |
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*/ |
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abstract protected function handleOnElementStart($parser, $name, $attributes); |
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/** |
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* Element end handler, executed when XML tag is leaved. |
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* |
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* @param resource $parser Parser handler. |
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* @param string $name Tag name. |
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*/ |
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abstract protected function handleOnElementEnd($parser, $name); |
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} |
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RunOpenCode /
sax
