includes/diffengine/Renderer/xhtml.php
author Dan
Thu, 06 Mar 2008 20:47:48 -0500
changeset 477 c4d6e9b3b964
parent 1 fe660c52c48f
child 1227 bdac73ed481e
permissions -rw-r--r--
Fixed bad style update during theme uninstall.
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
1
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
     1
<?php
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
     2
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
     3
/**
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
     4
 * XHTML diff renderer.
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
     5
 *
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
     6
 * This class renders diffs in XHTML format.
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
     7
 *
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
     8
 * $Horde: framework/Text_Diff/Diff/Renderer/inline.php,v 1.16 2006/01/08 00:06:57 jan Exp $
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
     9
 *
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    10
 * @author  Ciprian Popovici
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    11
 * @author  Dan Fuhry
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    12
 * @package Text_Diff
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    13
 */
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    14
class Text_Diff_Renderer_xhtml extends Text_Diff_Renderer {
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    15
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    16
    /**
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    17
     * Number of leading context "lines" to preserve.
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    18
     */
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    19
    var $_leading_context_lines = 5;
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    20
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    21
    /**
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    22
     * Number of trailing context "lines" to preserve.
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    23
     */
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    24
    var $_trailing_context_lines = 3;
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    25
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    26
    /**
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    27
     * Prefix for inserted text.
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    28
     */
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    29
    var $_ins_prefix = "<!-- Start added text -->\n<tr><td style='width: 0px;'>+</td><td class=\"diff-added\" style='width: 100%;'>";
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    30
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    31
    /**
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    32
     * Suffix for inserted text.
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    33
     */
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    34
    var $_ins_suffix = "</td></tr>\n<!-- End added text -->\n\n";
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    35
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    36
    /**
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    37
     * Prefix for deleted text.
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    38
     */
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    39
    var $_del_prefix = "<!-- Start deleted text -->\n<tr><td style='width: 0px;'>-</td><td class=\"diff-deleted\" style='width: 100%;'>";
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    40
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    41
    /**
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    42
     * Suffix for deleted text.
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    43
     */
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    44
    var $_del_suffix = "</td></tr>\n<!-- End deleted text -->\n\n";
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    45
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    46
    /**
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    47
     * Header for each change block.
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    48
     */
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    49
    var $_block_header = '';
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    50
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    51
    /**
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    52
     * What are we currently splitting on? Used to recurse to show word-level
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    53
     * changes.
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    54
     */
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    55
    var $_split_level = 'lines';
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    56
    
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    57
    function _blockHeader($xbeg, $xlen, $ybeg, $ylen)
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    58
    {
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    59
      return "<!-- Start block -->\n<tr><td colspan='2' class='diff-block'>Line $xbeg: {$this->_block_header}</td></tr>";
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    60
    }
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    61
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    62
    function _startBlock($header)
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    63
    {
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    64
        return $header;
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    65
    }
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    66
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    67
    function _lines($lines, $prefix = ' ', $encode = true)
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    68
    {
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    69
        if ($encode) {
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    70
            array_walk($lines, array(&$this, '_encode'));
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    71
        }
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    72
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    73
        if ($this->_split_level == 'words') {
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    74
            return implode('', $lines);
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    75
        } else {
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    76
            return implode("<br />", $lines) . "\n";
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    77
        }
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    78
    }
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    79
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    80
    function _added($lines)
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    81
    {
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    82
        array_walk($lines, array(&$this, '_encode'));
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    83
        $lines[0] = $this->_ins_prefix . $lines[0];
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    84
        $lines[count($lines) - 1] .= $this->_ins_suffix;
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    85
        return $this->_lines($lines, ' ', false);
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    86
    }
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    87
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    88
    function _deleted($lines, $words = false)
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    89
    {
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    90
        array_walk($lines, array(&$this, '_encode'));
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    91
        $lines[0] = $this->_del_prefix . $lines[0];
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    92
        $lines[count($lines) - 1] .= $this->_del_suffix;
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    93
        return $this->_lines($lines, ' ', false);
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    94
    }
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    95
    
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    96
    function _context($lines)
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    97
    {
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    98
        return "<!-- Start context -->\n<tr><td></td><td class=\"diff-context\">".$this->_lines($lines).'</td></tr>'."\n<!-- End context -->\n\n";
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    99
    }
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   100
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   101
    function _changed($orig, $final)
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   102
    {
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   103
        /* If we've already split on words, don't try to do so again - just display. */ 
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   104
        if ($this->_split_level == 'words') {
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   105
            $prefix = '';
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   106
            while ($orig[0] !== false && $final[0] !== false &&
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   107
                   substr($orig[0], 0, 1) == ' ' &&
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   108
                   substr($final[0], 0, 1) == ' ') {
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   109
                $prefix .= substr($orig[0], 0, 1);
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   110
                $orig[0] = substr($orig[0], 1);
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   111
                $final[0] = substr($final[0], 1);
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   112
            }
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   113
            $ret = $prefix . $this->_deleted($orig) . $this->_added($final) . "\n";
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   114
            //echo 'DEBUG:<pre>'.htmlspecialchars($ret).'</pre>';
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   115
            return $ret;
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   116
        }
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   117
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   118
        $text1 = implode("\n", $orig);
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   119
        $text2 = implode("\n", $final);
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   120
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   121
        /* Non-printing newline marker. */
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   122
        $nl = "\0";
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   123
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   124
        /* We want to split on word boundaries, but we need to
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   125
         * preserve whitespace as well. Therefore we split on words,
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   126
         * but include all blocks of whitespace in the wordlist. */
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   127
        $diff = &new Text_Diff($this->_splitOnWords($text1, $nl),
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   128
                               $this->_splitOnWords($text2, $nl));
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   129
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   130
        /* Get the diff in inline format. */
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   131
        $renderer = &new Text_Diff_Renderer_inline(array_merge($this->getParams(),
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   132
                                                               array('split_level' => 'words')));
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   133
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   134
        /* Run the diff and get the output. */
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   135
        $ret = str_replace($nl, "<br />", $renderer->render($diff));
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   136
        //echo 'DEBUG:<pre>'.htmlspecialchars($ret).'</pre>';
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   137
        return $ret . "\n";
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   138
    }
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   139
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   140
    function _splitOnWords($string, $newlineEscape = "<br />")
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   141
    {
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   142
        $words = array();
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   143
        $length = strlen($string);
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   144
        $pos = 0;
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   145
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   146
        while ($pos < $length) {
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   147
            // Eat a word with any preceding whitespace.
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   148
            $spaces = strspn(substr($string, $pos), " \n");
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   149
            $nextpos = strcspn(substr($string, $pos + $spaces), " \n");
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   150
            $words[] = str_replace("\n", $newlineEscape, substr($string, $pos, $spaces + $nextpos));
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   151
            $pos += $spaces + $nextpos;
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   152
        }
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   153
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   154
        return $words;
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   155
    }
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   156
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   157
    function _encode(&$string)
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   158
    {
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   159
        $string = htmlspecialchars($string);
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   160
    }
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   161
    
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   162
    /**
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   163
     * Renders a diff.
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   164
     *
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   165
     * @param Text_Diff $diff  A Text_Diff object.
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   166
     *
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   167
     * @return string  The formatted output.
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   168
     */
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   169
    
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   170
    function render($diff)
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   171
    {
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   172
        $xi = $yi = 1;
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   173
        $block = false;
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   174
        $context = array();
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   175
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   176
        $nlead = $this->_leading_context_lines;
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   177
        $ntrail = $this->_trailing_context_lines;
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   178
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   179
        $output = $this->_startDiff();
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   180
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   181
        $diffs = $diff->getDiff();
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   182
        foreach ($diffs as $i => $edit) {
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   183
            if (is_a($edit, 'Text_Diff_Op_copy')) {
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   184
                if (is_array($block)) {
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   185
                    $keep = $i == count($diffs) - 1 ? $ntrail : $nlead + $ntrail;
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   186
                    if (count($edit->orig) <= $keep) {
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   187
                        $block[] = $edit;
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   188
                    } else {
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   189
                        if ($ntrail) {
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   190
                            $context = array_slice($edit->orig, 0, $ntrail);
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   191
                            $block[] = &new Text_Diff_Op_copy($context);
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   192
                        }
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   193
                        $bk = $this->_block($x0, $ntrail + $xi - $x0,
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   194
                                            $y0, $ntrail + $yi - $y0,
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   195
                                            $block);
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   196
                        $output .= $bk;
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   197
                        $block = false;
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   198
                    }
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   199
                }
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   200
                $context = $edit->orig;
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   201
            } else {
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   202
                if (!is_array($block)) {
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   203
                    $context = array_slice($context, count($context) - $nlead);
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   204
                    $x0 = $xi - count($context);
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   205
                    $y0 = $yi - count($context);
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   206
                    $block = array();
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   207
                    if ($context) {
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   208
                        $block[] = &new Text_Diff_Op_copy($context);
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   209
                    }
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   210
                }
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   211
                $block[] = $edit;
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   212
            }
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   213
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   214
            if ($edit->orig) {
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   215
                $xi += count($edit->orig);
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   216
            }
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   217
            if ($edit->final) {
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   218
                $yi += count($edit->final);
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   219
            }
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   220
        }
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   221
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   222
        if (is_array($block)) {
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   223
            $bk = $this->_block($x0, $xi - $x0,
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   224
                                $y0, $yi - $y0,
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   225
                                $block);
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   226
            $output .= $bk;
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   227
        }
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   228
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   229
        $final = $output . $this->_endDiff();
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   230
        if ($final == '') $final = '<tr><td class="diff-block">No differences.</td></tr>';
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   231
        //$final = preg_replace('#('.preg_quote($this->_ins_suffix).'|'.preg_quote($this->_del_suffix).')(.+?)('.preg_quote($this->_ins_prefix).'|'.preg_quote($this->_ins_suffix).')#', '\\1<tr><td></td><td class="diff-context>\\2</td></tr>\\3', $final);
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   232
        return '<table class="diff">'.$final.'</table>'."\n\n";
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   233
    }
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   234
    
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   235
    function _block($xbeg, $xlen, $ybeg, $ylen, &$edits)
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   236
    {
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   237
        $output = $this->_startBlock($this->_blockHeader($xbeg, $xlen, $ybeg, $ylen));
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   238
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   239
        foreach ($edits as $edit) {
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   240
            switch (strtolower(get_class($edit))) {
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   241
            case 'text_diff_op_copy':
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   242
                $output .= $this->_context($edit->orig);
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   243
                break;
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   244
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   245
            case 'text_diff_op_add':
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   246
                $output .= $this->_added($edit->final);
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   247
                break;
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   248
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   249
            case 'text_diff_op_delete':
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   250
                $output .= $this->_deleted($edit->orig);
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   251
                break;
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   252
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   253
            case 'text_diff_op_change':
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   254
                $output .= $this->_changed($edit->orig, $edit->final);
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   255
                break;
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   256
            }
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   257
        }
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   258
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   259
        return $output . $this->_endBlock();
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   260
    }
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   261
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   262
}