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class MappedDiff in Service Container 7.2

Same name and namespace in other branches
  1. 7 lib/Drupal/Component/Diff/MappedDiff.php \Drupal\Component\Diff\MappedDiff

FIXME: bad name. @todo document @private @subpackage DifferenceEngine

Hierarchy

  • class \Drupal\Component\Diff\Diff

Expanded class hierarchy of MappedDiff

File

lib/Drupal/Component/Diff/MappedDiff.php, line 16
Contains \Drupal\Component\Diff\MappedDiff.

Namespace

Drupal\Component\Diff
View source
class MappedDiff extends Diff {

  /**
   * Constructor.
   *
   * Computes diff between sequences of strings.
   *
   * This can be used to compute things like
   * case-insensitive diffs, or diffs which ignore
   * changes in white-space.
   *
   * @param $from_lines array An array of strings.
   *  (Typically these are lines from a file.)
   *
   * @param $to_lines array An array of strings.
   *
   * @param $mapped_from_lines array This array should
   *  have the same size number of elements as $from_lines.
   *  The elements in $mapped_from_lines and
   *  $mapped_to_lines are what is actually compared
   *  when computing the diff.
   *
   * @param $mapped_to_lines array This array should
   *  have the same number of elements as $to_lines.
   */
  public function __construct($from_lines, $to_lines, $mapped_from_lines, $mapped_to_lines) {
    assert(sizeof($from_lines) == sizeof($mapped_from_lines));
    assert(sizeof($to_lines) == sizeof($mapped_to_lines));
    parent::__construct($mapped_from_lines, $mapped_to_lines);
    $xi = $yi = 0;
    for ($i = 0; $i < sizeof($this->edits); $i++) {
      $orig =& $this->edits[$i]->orig;
      if (is_array($orig)) {
        $orig = array_slice($from_lines, $xi, sizeof($orig));
        $xi += sizeof($orig);
      }
      $closing =& $this->edits[$i]->closing;
      if (is_array($closing)) {
        $closing = array_slice($to_lines, $yi, sizeof($closing));
        $yi += sizeof($closing);
      }
    }
  }

}

Members

Namesort descending Modifiers Type Description Overrides
Diff::$edits protected property The list of differences as an array of diff operations.
Diff::check public function Check a Diff for validity.
Diff::closing public function Gets the closing set of lines. 1
Diff::getEdits public function Gets the list of differences as an array of diff operations.
Diff::isEmpty public function Check for empty diff.
Diff::lcs public function Compute the length of the Longest Common Subsequence (LCS).
Diff::orig public function Gets the original set of lines. 1
Diff::reverse public function Compute reversed Diff.
MappedDiff::__construct public function Constructor. Overrides Diff::__construct 1