protected function DiffFormatter::blockHeader

Parameters

$xbeg:

$xlen:

$ybeg:

$ylen:

Return value

string:

File

core/includes/diff.inc, line 1105

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

Class

DiffFormatter

Base class for diff formatters

Code

protected function blockHeader($xbeg, $xlen, $ybeg, $ylen) {
  if ($xlen > 1) {
    $xbeg .= ',' . ($xbeg + $xlen - 1);
  }
  if ($ylen > 1) {
    $ybeg .= ',' . ($ybeg + $ylen - 1);
  }

  return $xbeg . ($xlen ? ($ylen ? 'c' : 'd') : 'a') . $ybeg;
}