/usr/share/php/Horde/Text/Diff/Renderer/Unified.php is in php-horde-text-diff 2.2.0-1ubuntu1.
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/**
* "Unified" diff renderer.
*
* This class renders the diff in classic "unified diff" format.
*
* Copyright 2004-2017 Horde LLC (http://www.horde.org/)
*
* See the enclosed file COPYING for license information (LGPL). If you did
* not receive this file, see http://www.horde.org/licenses/lgpl21.
*
* @author Ciprian Popovici
* @package Text_Diff
*/
class Horde_Text_Diff_Renderer_Unified extends Horde_Text_Diff_Renderer
{
/**
* Number of leading context "lines" to preserve.
*/
protected $_leading_context_lines = 4;
/**
* Number of trailing context "lines" to preserve.
*/
protected $_trailing_context_lines = 4;
protected function _blockHeader($xbeg, $xlen, $ybeg, $ylen)
{
if ($xlen != 1) {
$xbeg .= ',' . $xlen;
}
if ($ylen != 1) {
$ybeg .= ',' . $ylen;
}
return "@@ -$xbeg +$ybeg @@";
}
protected function _context($lines)
{
return $this->_lines($lines, ' ');
}
protected function _added($lines)
{
return $this->_lines($lines, '+');
}
protected function _deleted($lines)
{
return $this->_lines($lines, '-');
}
protected function _changed($orig, $final)
{
return $this->_deleted($orig) . $this->_added($final);
}
}
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