1: <?php
 2: 
 3: namespace vierbergenlars\Forage\QueryParser;
 4: 
 5: class ParseException extends \Exception
 6: {
 7:     public function __construct($message, $string = null, $pos = null)
 8:     {
 9:         if($string) {
10:             $startpos = $pos - 15;
11:             $start_diff = 0;
12:             if($startpos < 0) {
13:                 $start_diff = $startpos;
14:                 $startpos = 0;
15:             }
16: 
17:             $str = substr($string, $startpos, 30);
18: 
19:             $err_pos_in_str = 15 + $start_diff;
20: 
21: 
22:             $message.=' near ';
23:             $msg_len = strlen($message);
24:             $message.= $str;
25:             $message.="\n";
26:             $i = 0;
27:             for($i = 0; $i < $msg_len; $i++)
28:                 $message.=' ';
29:             for($i = 0; $i < $err_pos_in_str; $i++)
30:                 $message.='-';
31:             $message.='^';
32:         }
33:         parent::__construct($message);
34:     }
35: 
36: }
37: