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<?php
/**
* Squiz_Sniffs_PHP_LowercasePHPFunctionsSniff.
*
* PHP version 5
*
* @category PHP
* @package PHP_CodeSniffer
* @author Greg Sherwood <gsherwood@squiz.net>
* @author Marc McIntyre <mmcintyre@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_PHP_LowercasePHPFunctionsSniff.
*
* Ensures all calls to inbuilt PHP functions are lowercase.
*
* @category PHP
* @package PHP_CodeSniffer
* @author Greg Sherwood <gsherwood@squiz.net>
* @author Marc McIntyre <mmcintyre@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: @package_version@
* @link http://pear.php.net/package/PHP_CodeSniffer
*/
class Squiz_Sniffs_PHP_LowercasePHPFunctionsSniff implements PHP_CodeSniffer_Sniff
{
/**
* Returns an array of tokens this test wants to listen for.
*
* @return array
*/
public function register()
{
return array(
T_ISSET,
T_ECHO,
T_PRINT,
T_RETURN,
T_BREAK,
T_CONTINUE,
T_EMPTY,
T_EVAL,
T_EXIT,
T_LIST,
T_UNSET,
T_INCLUDE,
T_INCLUDE_ONCE,
T_REQUIRE,
T_REQUIRE_ONCE,
T_NEW,
T_DECLARE,
T_STRING,
);
}//end register()
/**
* Processes this test, when one of its tokens is encountered.
*
* @param PHP_CodeSniffer_File $phpcsFile The file being scanned.
* @param int $stackPtr The position of the current token in
* the stack passed in $tokens.
*
* @return void
*/
public function process(PHP_CodeSniffer_File $phpcsFile, $stackPtr)
{
$tokens = $phpcsFile->getTokens();
if ($tokens[$stackPtr]['code'] !== T_STRING) {
$content = $tokens[$stackPtr]['content'];
if ($content !== strtolower($content)) {
$error = '%s keyword must be lowercase; expected "%s" but found "%s"';
$data = array(
strtoupper($content),
strtolower($content),
$content,
);
$phpcsFile->addError($error, $stackPtr, 'KeywordUppercase', $data);
}
return;
}
// Make sure this is a function call.
$next = $phpcsFile->findNext(T_WHITESPACE, ($stackPtr + 1), null, true);
if ($next === false) {
// Not a function call.
return;
}
if ($tokens[$next]['code'] !== T_OPEN_PARENTHESIS) {
// Not a function call.
return;
}
$prev = $phpcsFile->findPrevious(T_WHITESPACE, ($stackPtr - 1), null, true);
if ($tokens[$prev]['code'] === T_FUNCTION) {
// Function declaration, not a function call.
return;
}
if ($tokens[$prev]['code'] === T_NEW) {
// Object creation, not an inbuilt function.
return;
}
if ($tokens[$prev]['code'] === T_OBJECT_OPERATOR) {
// Not an inbuilt function.
return;
}
if ($tokens[$prev]['code'] === T_DOUBLE_COLON) {
// Not an inbuilt function.
return;
}
// Make sure it is an inbuilt PHP function.
// PHP_CodeSniffer doesn't include/require any files, so no
// user defined global functions can exist, except for
// PHP_CodeSniffer ones.
$content = $tokens[$stackPtr]['content'];
if (function_exists($content) === false) {
return;
}
if ($content !== strtolower($content)) {
$error = 'Calls to inbuilt PHP functions must be lowercase; expected "%s" but found "%s"';
$data = array(
strtolower($content),
$content,
);
$phpcsFile->addError($error, $stackPtr, 'CallUppercase', $data);
}
}//end process()
}//end class
?>
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