public MappedDiff::__construct($from_lines, $to_lines, $mapped_from_lines, $mapped_to_lines)
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.
Parameters
$from_lines array An array of strings.: (Typically these are lines from a file.)
$to_lines array An array of strings.:
$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.
$mapped_to_lines array This array should: have the same number of elements as $to_lines.
Overrides Diff::__construct
File
- core/lib/Drupal/Component/Diff/MappedDiff.php, line 33
Class
- MappedDiff
- FIXME: bad name. @todo document @private @subpackage DifferenceEngine
Namespace
Drupal\Component\Diff
Code
public function __construct($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); } } }
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