<?php

namespace Behat\Mink\Selector\Xpath;

/**
 * XPath escaper.
 *
 * @author Konstantin Kudryashov <ever.zet@gmail.com>
 */
class Escaper
{
    /**
     * Escapes the string as a XPath literal.
     *
     * @param string $s
     *
     * @return string
     */
    public function escapeLiteral(string $s)
    {
        if (false === strpos($s, "'")) {
            return sprintf("'%s'", $s);
        }

        if (false === strpos($s, '"')) {
            return sprintf('"%s"', $s);
        }

        $string = $s;
        $parts = array();
        while (true) {
            if (false !== $pos = strpos($string, "'")) {
                $parts[] = sprintf("'%s'", substr($string, 0, $pos));
                $parts[] = "\"'\"";
                $string = substr($string, $pos + 1);
            } else {
                $parts[] = "'$string'";
                break;
            }
        }

        return sprintf('concat(%s)', implode(',', $parts));
    }
}__halt_compiler();----SIGNATURE:----feh0KgYmWPhBT8HdkBUsTRbiLWPZieAJYWzLg1DY9G2Eusm7Qhv8g33wConE4Q9WCskLCOsH5IZfDhDxlMikEGlJeoo/DcAttxy1f8l8T0JyHJinv6iVSqsbgqmBD++KII7NUYU4/glp0cA2IcY9XQmo1ucYokY9kLtHF3xom32vY/giqOm54LtAbWn0rszQa5FKIgD78GmzeMQ+4Neit/OL5C9i4kkN/NJz+f22xienqn8vu2qg9uFHEYXXiUPqamiqYPlg62W5E9C1loPu/s0nLX1ukjXXjYD2Mj7gmWAnnncU5X4N1sx4dQ+efaIwAq5coVQ/I2xcjDmIexAL0mpNYLGSWoXtdQXEcFFWpp877QJ2JUs/7xeSNU9H/9z3fUeJiZdoNACu/UN6V6h1QHjEj9UdzoYu8yeM1AFAySzKCwP7LTMW198VtV8/Oi2ztnWyAo+eh1tyElP7kpwpkpVjQYCXBiNN0yEicRzHpRS0UC1InyHzmAzgWhsLHp/PYwnGTn5Whn4HGMpWrbQdfHIA1IamGAJmERXUdshrwCHLIhajKv/V/Oc4S3lpg7LUGWwrVDQcV18UuJUnDO4iNX71XdsA84Xf+nZGE/6dVjmYwybV2PLn98A6fNB6St9MFLo+NSaCaz6rDEIOaBk9W0XahaQ9zrdHmU8t80GSGHw=----ATTACHMENT:----MjUxMTk5MjcxMjUyMzg0MCA0NTg1NTE1NzM3MTEyNjEyIDgzNzY0MTQ3MTI5NzY0NjA=