includes/diffengine/Renderer/unified.php
author Dan
Sat, 15 Dec 2007 18:10:14 -0500
changeset 320 112debff64bd
parent 1 fe660c52c48f
child 1227 bdac73ed481e
permissions -rw-r--r--
SURPRISE! Preliminary PostgreSQL support added. The required schema file is not present in this commit and will be included at a later date. No installer support is implemented. Also in this commit: several fixes including <!-- SYSMSG ... --> was broken in template compiler; set fixed width on included images to prevent the thumbnail box from getting huge; added a much more friendly interface to AJAX responses that are invalid JSON

<?php

/**
 * "Unified" diff renderer.
 *
 * This class renders the diff in classic "unified diff" format.
 *
 * $Horde: framework/Text_Diff/Diff/Renderer/unified.php,v 1.5 2006/01/08 00:06:57 jan Exp $
 *
 * @package Text_Diff
 */
class Text_Diff_Renderer_unified extends Text_Diff_Renderer {

    /**
     * Number of leading context "lines" to preserve.
     */
    var $_leading_context_lines = 4;

    /**
     * Number of trailing context "lines" to preserve.
     */
    var $_trailing_context_lines = 4;

    function _blockHeader($xbeg, $xlen, $ybeg, $ylen)
    {
        if ($xlen != 1) {
            $xbeg .= ',' . $xlen;
        }
        if ($ylen != 1) {
            $ybeg .= ',' . $ylen;
        }
        return "@@ -$xbeg +$ybeg @@";
    }

    function _added($lines)
    {
        return $this->_lines($lines, '+');
    }

    function _deleted($lines)
    {
        return $this->_lines($lines, '-');
    }

    function _changed($orig, $final)
    {
        return $this->_deleted($orig) . $this->_added($final);
    }

}