Source for file DisallowTabIndentSniff.php
Documentation is available at DisallowTabIndentSniff.php
* Throws errors if tabs are used for indentation.
* @author Greg Sherwood <gsherwood@squiz.net>
* @copyright 2006-2015 Squiz Pty Ltd (ABN 77 084 670 600)
* @license https://github.com/squizlabs/PHP_CodeSniffer/blob/master/licence.txt BSD Licence
namespace PHP_CodeSniffer\Standards\Generic\Sniffs\WhiteSpace;
use PHP_CodeSniffer\Sniffs\Sniff;
use PHP_CodeSniffer\Files\File;
class DisallowTabIndentSniff implements Sniff
* A list of tokenizers this sniff supports.
public $supportedTokenizers = array (
* The --tab-width CLI value that is being used.
private $tabWidth = null;
* Returns an array of tokens this test wants to listen for.
public function register ()
return array (T_OPEN_TAG );
* Processes this test, when one of its tokens is encountered.
* @param \PHP_CodeSniffer\Files\File $phpcsFile All the tokens found in the document.
* @param int $stackPtr The position of the current token in
* the stack passed in $tokens.
public function process (File $phpcsFile, $stackPtr)
if ($this->tabWidth === null ) {
if (isset ($phpcsFile->config ->tabWidth ) === false || $phpcsFile->config ->tabWidth === 0 ) {
// We have no idea how wide tabs are, so assume 4 spaces for metrics.
$this->tabWidth = $phpcsFile->config ->tabWidth;
$tokens = $phpcsFile->getTokens ();
$error = 'Spaces must be used to indent lines; tabs are not allowed';
for ($i = ($stackPtr + 1 ); $i < $phpcsFile->numTokens; $i++ ) {
if (isset ($checkTokens[$tokens[$i]['code']]) === false ) {
// If tabs are being converted to spaces by the tokeniser, the
// original content should be checked instead of the converted content.
if (isset ($tokens[$i]['orig_content']) === true ) {
$content = $tokens[$i]['orig_content'];
$content = $tokens[$i]['content'];
// Ignore file/class-level DocBlock, especially for recording metrics.
if (isset ($tokens[($i + 1 )]) === true
&& $tokens[$i]['line'] < $tokens[($i + 1 )]['line']
// Don't record metrics for empty lines.
if ($tokens[$i]['column'] === 1 ) {
if ($content[0 ] === "\t") {
if ($recordMetrics === true ) {
$spacePosition = strpos($content, ' ');
$tabAfterSpaces = strpos($content, "\t", $spacePosition);
if ($spacePosition !== false && $tabAfterSpaces !== false ) {
$phpcsFile->recordMetric ($i, 'Line indent', 'mixed');
// Check for use of precision spaces.
$numTabs = (int) floor($numSpaces / $this->tabWidth);
$phpcsFile->recordMetric ($i, 'Line indent', 'tabs');
$phpcsFile->recordMetric ($i, 'Line indent', 'mixed');
} else if ($content[0 ] === ' ') {
if (strpos($content, "\t") !== false ) {
if ($recordMetrics === true ) {
$phpcsFile->recordMetric ($i, 'Line indent', 'mixed');
} else if ($recordMetrics === true ) {
$phpcsFile->recordMetric ($i, 'Line indent', 'spaces');
// Look for tabs so we can report and replace, but don't
// record any metrics about them because they aren't
if (strpos($content, "\t") !== false ) {
$error = 'Spaces must be used for alignment; tabs are not allowed';
$errorCode = 'NonIndentTabsUsed';
if ($tabFound === false ) {
$fix = $phpcsFile->addFixableError ($error, $i, $errorCode);
if (isset ($tokens[$i]['orig_content']) === true ) {
// Use the replacement that PHPCS has already done.
$phpcsFile->fixer ->replaceToken ($i, $tokens[$i]['content']);
// Replace tabs with spaces, using an indent of 4 spaces.
// Other sniffs can then correct the indent if they need to.
$newContent = str_replace("\t", ' ', $tokens[$i]['content']);
$phpcsFile->fixer ->replaceToken ($i, $newContent);
// Ignore the rest of the file.
return ($phpcsFile->numTokens + 1 );
Documentation generated on Mon, 11 Mar 2019 15:27:23 -0400 by phpDocumentor 1.4.4. PEAR Logo Copyright © PHP Group 2004.
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