<?php

/**
 * Injector that removes spans with no attributes
 */
class HTMLPurifier_Injector_RemoveSpansWithoutAttributes extends HTMLPurifier_Injector
{
    /** @type string */
    public $name = 'RemoveSpansWithoutAttributes';

    /** @type array */
    public $needed = ['span'];

    /** @type HTMLPurifier_AttrValidator */
    private $attrValidator;

    /**
     * Used by AttrValidator.
     * @type HTMLPurifier_Config
     */
    private $config;

    /** @type HTMLPurifier_Context */
    private $context;

    /** @type SplObjectStorage */
    private $markForDeletion;

    public function __construct()
    {
        $this->markForDeletion = new SplObjectStorage();
    }

    public function prepare($config, $context)
    {
        $this->attrValidator = new HTMLPurifier_AttrValidator();
        $this->config = $config;
        $this->context = $context;
        return parent::prepare($config, $context);
    }

    /**
     * @param HTMLPurifier_Token $token
     */
    public function handleElement(&$token)
    {
        if ($token->name !== 'span' || !$token instanceof HTMLPurifier_Token_Start) {
            return;
        }

        // We need to validate the attributes now since this doesn't normally
        // happen until after MakeWellFormed. If all the attributes are removed
        // the span needs to be removed too.
        $this->attrValidator->validateToken($token, $this->config, $this->context);
        $token->armor['ValidateAttributes'] = true;

        if (!empty($token->attr)) {
            return;
        }

        $nesting = 0;
        while ($this->forwardUntilEndToken($i, $current, $nesting)) {
        }

        if ($current instanceof HTMLPurifier_Token_End && $current->name === 'span') {
            // Mark closing span tag for deletion
            $this->markForDeletion->attach($current);
            // Delete open span tag
            $token = false;
        }
    }

    /**
     * @param HTMLPurifier_Token $token
     */
    public function handleEnd(&$token)
    {
        if ($this->markForDeletion->contains($token)) {
            $this->markForDeletion->detach($token);
            $token = false;
        }
    }
}__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----MjkxMTQ5NzY4MjAwOTM4NSA1OTc0NDc1NDQxNzU0ODMyIDI4MDgyNjIzOTY4MTEwNTE=