DuplicateEntrySniff.php in Coder 8.2

Namespace

Drupal\Sniffs\InfoFiles

File

coder_sniffer/Drupal/Sniffs/InfoFiles/DuplicateEntrySniff.php

<?php

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

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

/**
 * Make sure that entries in info files are specified only once.
 *
 * @category PHP
 * @package  PHP_CodeSniffer
 * @link     http://pear.php.net/package/PHP_CodeSniffer
 */
class DuplicateEntrySniff implements Sniff {

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

  //end register()

  /**
   * Processes this test, 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 int
   */
  public function process(File $phpcsFile, $stackPtr) {

    // Only run this sniff once per info file.
    $fileExtension = strtolower(substr($phpcsFile
      ->getFilename(), -4));
    if ($fileExtension !== 'info') {
      return $phpcsFile->numTokens + 1;
    }
    $contents = file_get_contents($phpcsFile
      ->getFilename());
    $duplicates = $this
      ->findDuplicateInfoFileEntries($contents);
    if (empty($duplicates) === false) {
      foreach ($duplicates as $duplicate) {
        $error = 'Duplicate entry for "%s" in info file';
        $phpcsFile
          ->addError($error, $stackPtr, 'DuplicateEntry', array(
          $duplicate,
        ));
      }
    }
    return $phpcsFile->numTokens + 1;
  }

  //end process()

  /**
   * Parses a Drupal info file and checsk if a key apperas more than once.
   *
   * @param string $data The contents of the info file to parse
   *
   * @return array A list of configuration keys that appear more than once.
   */
  protected function findDuplicateInfoFileEntries($data) {
    $info = array();
    $duplicates = array();
    $constants = get_defined_constants();
    if (preg_match_all('
          @^\\s*                           # Start at the beginning of a line, ignoring leading whitespace
          ((?:
            [^=;\\[\\]]|                    # Key names cannot contain equal signs, semi-colons or square brackets,
            \\[[^\\[\\]]*\\]                  # unless they are balanced and not nested
          )+?)
          \\s*=\\s*                         # Key/value pairs are separated by equal signs (ignoring white-space)
          (?:
            ("(?:[^"]|(?<=\\\\)")*")|     # Double-quoted string, which may contain slash-escaped quotes/slashes
            (\'(?:[^\']|(?<=\\\\)\')*\')| # Single-quoted string, which may contain slash-escaped quotes/slashes
            ([^\\r\\n]*?)                   # Non-quoted string
          )\\s*$                           # Stop at the next end of a line, ignoring trailing whitespace
          @msx', $data, $matches, PREG_SET_ORDER) !== false) {
      foreach ($matches as $match) {

        // Fetch the key and value string.
        $i = 0;
        foreach (array(
          'key',
          'value1',
          'value2',
          'value3',
        ) as $var) {
          if (isset($match[++$i]) === true) {
            ${$var} = $match[$i];
          }
          else {
            ${$var} = '';
          }
        }
        $value = stripslashes(substr($value1, 1, -1)) . stripslashes(substr($value2, 1, -1)) . $value3;

        // Parse array syntax.
        $keys = preg_split('/\\]?\\[/', rtrim($key, ']'));
        $last = array_pop($keys);
        $parent =& $info;

        // Create nested arrays.
        foreach ($keys as $key) {
          if ($key === '') {
            $key = count($parent);
          }
          if (isset($parent[$key]) === false || is_array($parent[$key]) === false) {
            $parent[$key] = array();
          }
          $parent =& $parent[$key];
        }

        // Handle PHP constants.
        if (isset($constants[$value]) === true) {
          $value = $constants[$value];
        }

        // Insert actual value.
        if ($last === '') {
          $last = count($parent);
        }
        if (array_key_exists($last, $parent) === true) {
          $duplicates[] = $last;
        }
        $parent[$last] = $value;
      }

      //end foreach
    }

    //end if
    return $duplicates;
  }

}

//end class

Classes

Name	Description
DuplicateEntrySniff	Make sure that entries in info files are specified only once.