1<?php
2/**
3 * Generic_Sniffs_Debug_CSSLintSniff.
4 *
5 * PHP version 5
6 *
7 * @category  PHP
8 * @package   PHP_CodeSniffer
9 * @author    Roman Levishchenko <index.0h@gmail.com>
10 * @copyright 2013-2014 Roman Levishchenko
11 * @license   https://github.com/squizlabs/PHP_CodeSniffer/blob/master/licence.txt BSD Licence
12 * @link      http://pear.php.net/package/PHP_CodeSniffer
13 */
14
15/**
16 * Generic_Sniffs_Debug_CSSLintSniff.
17 *
18 * Runs csslint on the file.
19 *
20 * @category  PHP
21 * @package   PHP_CodeSniffer
22 * @author    Roman Levishchenko <index.0h@gmail.com>
23 * @copyright 2013-2014 Roman Levishchenko
24 * @license   https://github.com/squizlabs/PHP_CodeSniffer/blob/master/licence.txt BSD Licence
25 * @version   Release: @package_version@
26 * @link      http://pear.php.net/package/PHP_CodeSniffer
27 */
28class Generic_Sniffs_Debug_CSSLintSniff implements PHP_CodeSniffer_Sniff
29{
30
31    /**
32     * A list of tokenizers this sniff supports.
33     *
34     * @var array
35     */
36    public $supportedTokenizers = array('CSS');
37
38
39    /**
40     * Returns the token types that this sniff is interested in.
41     *
42     * @return int[]
43     */
44    public function register()
45    {
46        return array(T_OPEN_TAG);
47
48    }//end register()
49
50
51    /**
52     * Processes the tokens that this sniff is interested in.
53     *
54     * @param PHP_CodeSniffer_File $phpcsFile The file where the token was found.
55     * @param int                  $stackPtr  The position in the stack where
56     *                                        the token was found.
57     *
58     * @return void
59     */
60    public function process(PHP_CodeSniffer_File $phpcsFile, $stackPtr)
61    {
62        $fileName = $phpcsFile->getFilename();
63
64        $csslintPath = PHP_CodeSniffer::getConfigData('csslint_path');
65        if ($csslintPath === null) {
66            return;
67        }
68
69        $cmd = escapeshellcmd($csslintPath).' '.escapeshellarg($fileName).' 2>&1';
70        exec($cmd, $output, $retval);
71
72        if (is_array($output) === false) {
73            return;
74        }
75
76        $count = count($output);
77
78        for ($i = 0; $i < $count; $i++) {
79            $matches    = array();
80            $numMatches = preg_match(
81                '/(error|warning) at line (\d+)/',
82                $output[$i],
83                $matches
84            );
85
86            if ($numMatches === 0) {
87                continue;
88            }
89
90            $line    = (int) $matches[2];
91            $message = 'csslint says: '.$output[($i + 1)];
92            // First line is message with error line and error code.
93            // Second is error message.
94            // Third is wrong line in file.
95            // Fourth is empty line.
96            $i += 4;
97
98            $phpcsFile->addWarningOnLine($message, $line, 'ExternalTool');
99        }//end for
100
101        // Ignore the rest of the file.
102        return ($phpcsFile->numTokens + 1);
103
104    }//end process()
105
106
107}//end class
108