function MappedDiff::MappedDiff in Diff 5

Same name and namespace in other branches

1. 5.2 DiffEngine.php \MappedDiff::MappedDiff()
2. 6.2 DiffEngine.php \MappedDiff::MappedDiff()
3. 6 DiffEngine.php \MappedDiff::MappedDiff()
4. 7.2 DiffEngine.php \MappedDiff::MappedDiff()

* Constructor. * * Computes diff between sequences of strings. * * This can be used to compute things like * case-insensitve diffs, or diffs which ignore * changes in white-space. * *

Parameters

$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.

1 call to MappedDiff::MappedDiff()

WordLevelDiff::WordLevelDiff in ./DiffEngine.php

File

./DiffEngine.php, line 700

Class

MappedDiff

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

Code

function MappedDiff($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));
  $this
    ->Diff($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);
    }
  }
}