1<?php
2/**
3 * Generic_Sniffs_PHP_SyntaxSniff.
4 *
5 * PHP version 5
6 *
7 * @category  PHP
8 * @package   PHP_CodeSniffer
9 * @author    Blaine Schmeisser <blainesch@gmail.com>
10 * @author    Greg Sherwood <gsherwood@squiz.net>
11 * @copyright 2006-2014 Squiz Pty Ltd (ABN 77 084 670 600)
12 * @license   https://github.com/squizlabs/PHP_CodeSniffer/blob/master/licence.txt BSD Licence
13 * @link      http://pear.php.net/package/PHP_CodeSniffer
14 */
15
16/**
17 * Generic_Sniffs_PHP_SyntaxSniff.
18 *
19 * Ensures PHP believes the syntax is clean.
20 *
21 * @category  PHP
22 * @package   PHP_CodeSniffer
23 * @author    Blaine Schmeisser <blainesch@gmail.com>
24 * @author    Greg Sherwood <gsherwood@squiz.net>
25 * @copyright 2006-2014 Squiz Pty Ltd (ABN 77 084 670 600)
26 * @license   https://github.com/squizlabs/PHP_CodeSniffer/blob/master/licence.txt BSD Licence
27 * @version   Release: @package_version@
28 * @link      http://pear.php.net/package/PHP_CodeSniffer
29 */
30class Generic_Sniffs_PHP_SyntaxSniff implements PHP_CodeSniffer_Sniff
31{
32
33    /**
34     * The path to the PHP version we are checking with.
35     *
36     * @var string
37     */
38    private $_phpPath = null;
39
40
41    /**
42     * Returns an array of tokens this test wants to listen for.
43     *
44     * @return array
45     */
46    public function register()
47    {
48        return array(T_OPEN_TAG);
49
50    }//end register()
51
52
53    /**
54     * Processes this test, when one of its tokens is encountered.
55     *
56     * @param PHP_CodeSniffer_File $phpcsFile The file being scanned.
57     * @param int                  $stackPtr  The position of the current token in
58     *                                        the stack passed in $tokens.
59     *
60     * @return void
61     */
62    public function process(PHP_CodeSniffer_File $phpcsFile, $stackPtr)
63    {
64        if ($this->_phpPath === null) {
65            $this->_phpPath = PHP_CodeSniffer::getConfigData('php_path');
66            if ($this->_phpPath === null) {
67                // PHP_BINARY is available in PHP 5.4+.
68                if (defined('PHP_BINARY') === true) {
69                    $this->_phpPath = PHP_BINARY;
70                } else {
71                    return;
72                }
73            }
74        }
75
76        $fileName = escapeshellarg($phpcsFile->getFilename());
77        if (defined('HHVM_VERSION') === false) {
78            $cmd = escapeshellcmd($this->_phpPath)." -l -d error_prepend_string='' $fileName 2>&1";
79        } else {
80            $cmd = escapeshellcmd($this->_phpPath)." -l $fileName 2>&1";
81        }
82
83        $output  = shell_exec($cmd);
84        $matches = array();
85        if (preg_match('/^.*error:(.*) in .* on line ([0-9]+)/m', trim($output), $matches) === 1) {
86            $error = trim($matches[1]);
87            $line  = (int) $matches[2];
88            $phpcsFile->addErrorOnLine("PHP syntax error: $error", $line, 'PHPSyntax');
89        }
90
91        // Ignore the rest of the file.
92        return ($phpcsFile->numTokens + 1);
93
94    }//end process()
95
96
97}//end class
98