/home/kueuepay/www/vendor/ezyang/htmlpurifier/library/HTMLPurifier/ChildDef/StrictBlockquote.php
<?php

/**
 * Takes the contents of blockquote when in strict and reformats for validation.
 */
class HTMLPurifier_ChildDef_StrictBlockquote extends HTMLPurifier_ChildDef_Required
{
    /**
     * @type array
     */
    protected $real_elements;

    /**
     * @type array
     */
    protected $fake_elements;

    /**
     * @type bool
     */
    public $allow_empty = true;

    /**
     * @type string
     */
    public $type = 'strictblockquote';

    /**
     * @type bool
     */
    protected $init = false;

    /**
     * @param HTMLPurifier_Config $config
     * @return array
     * @note We don't want MakeWellFormed to auto-close inline elements since
     *       they might be allowed.
     */
    public function getAllowedElements($config)
    {
        $this->init($config);
        return $this->fake_elements;
    }

    /**
     * @param array $children
     * @param HTMLPurifier_Config $config
     * @param HTMLPurifier_Context $context
     * @return array
     */
    public function validateChildren($children, $config, $context)
    {
        $this->init($config);

        // trick the parent class into thinking it allows more
        $this->elements = $this->fake_elements;
        $result = parent::validateChildren($children, $config, $context);
        $this->elements = $this->real_elements;

        if ($result === false) {
            return array();
        }
        if ($result === true) {
            $result = $children;
        }

        $def = $config->getHTMLDefinition();
        $block_wrap_name = $def->info_block_wrapper;
        $block_wrap = false;
        $ret = array();

        foreach ($result as $node) {
            if ($block_wrap === false) {
                if (($node instanceof HTMLPurifier_Node_Text && !$node->is_whitespace) ||
                    ($node instanceof HTMLPurifier_Node_Element && !isset($this->elements[$node->name]))) {
                        $block_wrap = new HTMLPurifier_Node_Element($def->info_block_wrapper);
                        $ret[] = $block_wrap;
                }
            } else {
                if ($node instanceof HTMLPurifier_Node_Element && isset($this->elements[$node->name])) {
                    $block_wrap = false;

                }
            }
            if ($block_wrap) {
                $block_wrap->children[] = $node;
            } else {
                $ret[] = $node;
            }
        }
        return $ret;
    }

    /**
     * @param HTMLPurifier_Config $config
     */
    private function init($config)
    {
        if (!$this->init) {
            $def = $config->getHTMLDefinition();
            // allow all inline elements
            $this->real_elements = $this->elements;
            $this->fake_elements = $def->info_content_sets['Flow'];
            $this->fake_elements['#PCDATA'] = true;
            $this->init = true;
        }
    }
}

// vim: et sw=4 sts=4
Best Practice

Best Practices

To ensure a smooth integration process and optimal performance, follow these best practices:

  1. Use secure HTTPS connections for all API requests.
  2. Implement robust error handling to handle potential issues gracefully.
  3. Regularly update your integration to stay current with any API changes or enhancements.