Chris@0: <?php
Chris@0: 
Chris@0: /*
Chris@0:  * This file is part of the Mink package.
Chris@0:  * (c) Konstantin Kudryashov <ever.zet@gmail.com>
Chris@0:  *
Chris@0:  * For the full copyright and license information, please view the LICENSE
Chris@0:  * file that was distributed with this source code.
Chris@0:  */
Chris@0: 
Chris@0: namespace Behat\Mink\Selector\Xpath;
Chris@0: 
Chris@0: /**
Chris@0:  * XPath escaper.
Chris@0:  *
Chris@0:  * @author Konstantin Kudryashov <ever.zet@gmail.com>
Chris@0:  */
Chris@0: class Escaper
Chris@0: {
Chris@0:     /**
Chris@0:      * Escapes the string as a XPath literal.
Chris@0:      *
Chris@0:      * @param string $s
Chris@0:      *
Chris@0:      * @return string
Chris@0:      */
Chris@0:     public function escapeLiteral($s)
Chris@0:     {
Chris@0:         if (false === strpos($s, "'")) {
Chris@0:             return sprintf("'%s'", $s);
Chris@0:         }
Chris@0: 
Chris@0:         if (false === strpos($s, '"')) {
Chris@0:             return sprintf('"%s"', $s);
Chris@0:         }
Chris@0: 
Chris@0:         $string = $s;
Chris@0:         $parts = array();
Chris@0:         while (true) {
Chris@0:             if (false !== $pos = strpos($string, "'")) {
Chris@0:                 $parts[] = sprintf("'%s'", substr($string, 0, $pos));
Chris@0:                 $parts[] = "\"'\"";
Chris@0:                 $string = substr($string, $pos + 1);
Chris@0:             } else {
Chris@0:                 $parts[] = "'$string'";
Chris@0:                 break;
Chris@0:             }
Chris@0:         }
Chris@0: 
Chris@0:         return sprintf('concat(%s)', implode($parts, ','));
Chris@0:     }
Chris@0: }