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<?php
// (c) Copyright by authors of the Tiki Wiki CMS Groupware Project
//
// All Rights Reserved. See copyright.txt for details and a complete list of authors.
// Licensed under the GNU LESSER GENERAL PUBLIC LICENSE. See license.txt for details.
// $Id$
/**
* "Inline" character diff renderer.
*
* This class renders the diff in "inline" format by characters.
*
* @package Text_Diff
*/
class Text_Diff_Renderer_character_inline extends Tiki_Text_Diff_Renderer
{
protected $orig;
protected $final;
public function __construct($context_lines = 0)
{
$this->_leading_context_lines = $context_lines;
$this->_trailing_context_lines = $context_lines;
$this->diff = "";
$this->change = "";
}
protected function _startDiff()
{
}
protected function _endDiff()
{
return [$this->diff, $this->change];
}
protected function _blockHeader($xbeg, $xlen, $ybeg, $ylen)
{
}
protected function _startBlock($header)
{
echo $header;
}
protected function _endBlock()
{
}
protected function _getChange($lines)
{
return str_replace("<br />", "↵<br />", join("", $lines));
}
protected function _lines($lines, $prefix = '', $suffix = '', $type = '')
{
if ($type == 'context') {
$this->diff .= join("", $lines);
} elseif ($type == 'added' || $type == 'change-added') {
$t = $this->_getChange($lines);
if (! empty($t)) {
$this->diff .= "<span class='diffadded'>$t</span>";
}
} elseif ($type == 'deleted' || $type == 'change-deleted') {
$t = $this->_getChange($lines);
if (! empty($t)) {
$this->diff .= "<span class='diffinldel'>$t</span>";
}
} elseif ($type == 'changed') {
$t = $this->_getChange($lines[0]);
if (! empty($t)) {
$this->diff .= "<span class='diffinldel'>$t</span>";
}
$t = $this->_getChange($lines[1]);
if (! empty($t)) {
$this->diff .= "<span class='diffadded'>$t</span>";
}
}
}
protected function _context($lines)
{
$this->_lines($lines, '', '', 'context');
}
protected function _added($lines, $changemode = false)
{
if (! $this->change) {
$this->change = "added";
}
if ($this->change != "added") {
$this->change = "changed";
}
if ($changemode) {
$this->_lines($lines, '+', '', 'change-added');
} else {
$this->_lines($lines, '+', '', 'added');
}
}
protected function _deleted($lines, $changemode = false)
{
if (! $this->change) {
$this->change = "deleted";
}
if ($this->change != "deleted") {
$this->change = "changed";
}
if ($changemode) {
$this->_lines($lines, '-', '', 'change-deleted');
} else {
$this->_lines($lines, '-', '', 'deleted');
}
}
protected function _changed($orig, $final)
{
$this->change = 'changed';
$this->_lines([$orig, $final], '*', '', 'changed');
}
}