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<?php
/**
* Squiz_Sniffs_CSS_DuplicateClassDefinitionSniff.
*
* PHP version 5
*
* @category PHP
* @package PHP_CodeSniffer
* @author Greg Sherwood <gsherwood@squiz.net>
* @copyright 2006-2011 Squiz Pty Ltd (ABN 77 084 670 600)
* @license http://matrix.squiz.net/developer/tools/php_cs/licence BSD Licence
* @link http://pear.php.net/package/PHP_CodeSniffer
*/
/**
* Squiz_Sniffs_CSS_DuplicateClassDefinitionSniff.
*
* Check for duplicate class definitions that can be merged into one.
*
* @category PHP
* @package PHP_CodeSniffer
* @author Greg Sherwood <gsherwood@squiz.net>
* @copyright 2006-2011 Squiz Pty Ltd (ABN 77 084 670 600)
* @license http://matrix.squiz.net/developer/tools/php_cs/licence BSD Licence
* @version Release: 1.3.4
* @link http://pear.php.net/package/PHP_CodeSniffer
*/
class Squiz_Sniffs_CSS_DuplicateClassDefinitionSniff implements PHP_CodeSniffer_Sniff
{
/**
* A list of tokenizers this sniff supports.
*
* @var array
*/
public $supportedTokenizers = array('CSS');
/**
* Returns the token types that this sniff is interested in.
*
* @return array(int)
*/
public function register()
{
return array(T_OPEN_TAG);
}//end register()
/**
* Processes the tokens that this sniff is interested in.
*
* @param PHP_CodeSniffer_File $phpcsFile The file where the token was found.
* @param int $stackPtr The position in the stack where
* the token was found.
*
* @return void
*/
public function process(PHP_CodeSniffer_File $phpcsFile, $stackPtr)
{
$tokens = $phpcsFile->getTokens();
// Find the content of each class definition name.
$classNames = array();
$next = $phpcsFile->findNext(T_OPEN_CURLY_BRACKET, ($stackPtr + 1));
if ($next === false) {
// No class definitions in the file.
return;
}
$find = array(
T_CLOSE_CURLY_BRACKET,
T_COMMENT,
T_OPEN_TAG,
);
while ($next !== false) {
$prev = $phpcsFile->findPrevious($find, ($next - 1));
// Create a sorted name for the class so we can compare classes
// even when the individual names are all over the place.
$name = '';
for ($i = ($prev + 1); $i < $next; $i++) {
$name .= $tokens[$i]['content'];
}
$name = trim($name);
$name = str_replace("\n", ' ', $name);
$name = preg_replace('|[\s]+|', ' ', $name);
$name = str_replace(', ', ',', $name);
$names = explode(',', $name);
sort($names);
$name = implode(',', $names);
if (isset($classNames[$name]) === true) {
$first = $classNames[$name];
$error = 'Duplicate class definition found; first defined on line %s';
$data = array($tokens[$first]['line']);
$phpcsFile->addError($error, $next, 'Found', $data);
} else {
$classNames[$name] = $next;
}
$next = $phpcsFile->findNext(T_OPEN_CURLY_BRACKET, ($next + 1));
}//end while
}//end process()
}//end class
?>
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