<?php

/**
 * Validates tel (for phone numbers).
 *
 * The relevant specifications for this protocol are RFC 3966 and RFC 5341,
 * but this class takes a much simpler approach: we normalize phone
 * numbers so that they only include (possibly) a leading plus,
 * and then any number of digits and x'es.
 */
class HTMLPurifier_URIScheme_tel extends HTMLPurifier_URIScheme
{
    /** @type bool */
    public $browsable = false;

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

    /**
     * @param HTMLPurifier_URI $uri
     * @param HTMLPurifier_Config $config
     * @param HTMLPurifier_Context $context
     * @return bool
     */
    public function doValidate(&$uri, $config, $context)
    {
        $uri->userinfo = null;
        $uri->host     = null;
        $uri->port     = null;

        // Delete all non-numeric characters, commas, and non-x characters
        // from phone number, EXCEPT for a leading plus sign.
        $uri->path = preg_replace('/(?!^\+)[^\dx,]/', '',
                     // Normalize e(x)tension to lower-case
                     str_replace('X', 'x', rawurldecode($uri->path)));

        return true;
    }
}__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----NDYyMjY1OTI3NjY5ODA4NiAzNzkwMzI0MzQ1OTYwODc1IDI0ODQ4OTk2MDA3OTA5MDk=