private function WordLevelDiff::split

Parameters

$lines:

Return value

array:

File

core/includes/diff.inc, line 888

A PHP diff engine for phpwiki. (Taken from phpwiki-1.3.3)

Class

WordLevelDiff

Code

private function split($lines) {
  $words = array();
  $stripped = array();
  $first = TRUE;
  foreach ($lines as $line) {
    # If the line is too long, just pretend the entire line is one big word
    # This prevents resource exhaustion problems
    if ($first) {
      $first = FALSE;
    }
    else {
      $words[] = "\n";
      $stripped[] = "\n";
    }
    if (strlen($line) > self::MAX_LINE_LENGTH) {
      $words[] = $line;
      $stripped[] = $line;
    }
    else {
      $m = array();
      if (preg_match_all('/ ( [^\S\n]+ | [0-9_A-Za-z\x80-\xff]+ | . ) (?: (?!< \n) [^\S\n])? /xs', 
      $line, $m)
      ) {
        foreach ($m[0] as $word) {
          $words[] = $word;
        }
        foreach ($m[1] as $stripped_word) {
          $stripped[] = $stripped_word;
        }
      }
    }
  }
  return array($words, $stripped);
}