EndFileNewlineSniff.php in Coder 8.2

Namespace

Drupal\Sniffs\Files

File

coder_sniffer/Drupal/Sniffs/Files/EndFileNewlineSniff.php

<?php

/**
 * \Drupal\Sniffs\Files\EndFileNewlineSniff.
 *
 * @category PHP
 * @package  PHP_CodeSniffer
 * @link     http://pear.php.net/package/PHP_CodeSniffer
 */
namespace Drupal\Sniffs\Files;

use PHP_CodeSniffer\Files\File;
use PHP_CodeSniffer\Sniffs\Sniff;

/**
 * Ensures the file ends with a newline character.
 *
 * Largely copied from PSR2, but we need to run it on *.txt files and templates as
 * well.
 *
 * @category PHP
 * @package  PHP_CodeSniffer
 * @link     http://pear.php.net/package/PHP_CodeSniffer
 */
class EndFileNewlineSniff implements Sniff {

  /**
   * A list of tokenizers this sniff supports.
   *
   * @var array
   */
  public $supportedTokenizers = array(
    'PHP',
    'JS',
    'CSS',
  );

  /**
   * Returns an array of tokens this test wants to listen for.
   *
   * @return array
   */
  public function register() {
    return array(
      T_OPEN_TAG,
      T_INLINE_HTML,
    );
  }

  //end register()

  /**
   * Processes this sniff, when one of its tokens is encountered.
   *
   * @param \PHP_CodeSniffer\Files\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(File $phpcsFile, $stackPtr) {

    // Skip to the end of the file.
    $tokens = $phpcsFile
      ->getTokens();
    if ($phpcsFile->tokenizerType === 'PHP') {
      $lastToken = $phpcsFile->numTokens - 1;
    }
    else {

      // JS and CSS have an artificial token at the end which we have to
      // ignore.
      $lastToken = $phpcsFile->numTokens - 2;
    }

    // Hard-coding the expected \n in this sniff as it is PSR-2 specific and
    // PSR-2 enforces the use of unix style newlines.
    if (substr($tokens[$lastToken]['content'], -1) !== "\n") {
      $error = 'Expected 1 newline at end of file; 0 found';
      $fix = $phpcsFile
        ->addFixableError($error, $lastToken, 'NoneFound');
      if ($fix === true) {
        $phpcsFile->fixer
          ->addNewline($lastToken);
      }
      $phpcsFile
        ->recordMetric($stackPtr, 'Number of newlines at EOF', '0');
      return $phpcsFile->numTokens + 1;
    }

    // Go looking for the last non-empty line.
    $lastLine = $tokens[$lastToken]['line'];
    if ($tokens[$lastToken]['code'] === T_WHITESPACE) {
      $lastCode = $phpcsFile
        ->findPrevious(T_WHITESPACE, $lastToken - 1, null, true);
    }
    else {
      if ($tokens[$lastToken]['code'] === T_INLINE_HTML) {
        $lastCode = $lastToken;
        while ($lastCode > 0 && trim($tokens[$lastCode]['content']) === '') {
          $lastCode--;
        }
      }
      else {
        $lastCode = $lastToken;
      }
    }
    $lastCodeLine = $tokens[$lastCode]['line'];
    $blankLines = $lastLine - $lastCodeLine + 1;
    $phpcsFile
      ->recordMetric($stackPtr, 'Number of newlines at EOF', $blankLines);
    if ($blankLines > 1) {
      $error = 'Expected 1 newline at end of file; %s found';
      $data = array(
        $blankLines,
      );
      $fix = $phpcsFile
        ->addFixableError($error, $lastCode, 'TooMany', $data);
      if ($fix === true) {
        $phpcsFile->fixer
          ->beginChangeset();
        $phpcsFile->fixer
          ->replaceToken($lastCode, rtrim($tokens[$lastCode]['content']));
        for ($i = $lastCode + 1; $i < $lastToken; $i++) {
          $phpcsFile->fixer
            ->replaceToken($i, '');
        }
        $phpcsFile->fixer
          ->replaceToken($lastToken, $phpcsFile->eolChar);
        $phpcsFile->fixer
          ->endChangeset();
      }
    }

    // Skip the rest of the file.
    return $phpcsFile->numTokens + 1;
  }

}

//end class

Classes

Name	Description
EndFileNewlineSniff	Ensures the file ends with a newline character.