");
SDV($DiffDelFmt['c'],"
\$[Changed line \$DiffLines from:]
");
SDV($DiffAddFmt['d'],"
\$[Added line \$DiffLines:]
");
SDV($DiffAddFmt['c'],"
$[to:]
");
SDV($DiffEndDelAddFmt,"
");
SDV($DiffEndFmt,"
");
SDV($DiffRestoreFmt,"
");
SDV($HandleActions['diff'], 'HandleDiff');
SDV($HandleAuth['diff'], 'read');
SDV($ActionTitleFmt['diff'], '| $[History]');
SDV($HTMLStylesFmt['diff'], "
.diffbox { width:570px; border-left:1px #999999 solid; margin-top:1.33em; }
.diffauthor { font-weight:bold; }
.diffchangesum { font-weight:bold; }
.difftime { font-family:verdana,sans-serif; font-size:66%;
background-color:#dddddd; }
.difftype { clear:both; font-family:verdana,sans-serif;
font-size:66%; font-weight:bold; }
.diffadd { border-left:5px #99ff99 solid; padding-left:5px; }
.diffdel { border-left:5px #ffff99 solid; padding-left:5px; }
.diffrestore { clear:both; font-family:verdana,sans-serif;
font-size:66%; margin:1.5em 0px; }
.diffmarkup { font-family:monospace; }
.diffmarkup del { background:#ffff99; text-decoration: none; }
.diffmarkup ins { background:#99ff99; text-decoration: none; }");
function PrintDiff($pagename) {
global $DiffHTMLFunction,$DiffShow,$DiffStartFmt,$TimeFmt,
$DiffEndFmt,$DiffRestoreFmt,$FmtV, $LinkFunctions;
$page = ReadPage($pagename);
if (!$page) return;
krsort($page); reset($page);
$lf = $LinkFunctions;
$LinkFunctions['http:'] = 'LinkSuppress';
$LinkFunctions['https:'] = 'LinkSuppress';
SDV($DiffHTMLFunction, 'DiffHTML');
foreach($page as $k=>$v) {
if (!preg_match("/^diff:(\d+):(\d+):?([^:]*)/",$k,$match)) continue;
$diffclass = $match[3];
if ($diffclass=='minor' && $DiffShow['minor']!='y') continue;
$diffgmt = $FmtV['$DiffGMT'] = $match[1];
$FmtV['$DiffTime'] = strftime($TimeFmt,$diffgmt);
$diffauthor = @$page["author:$diffgmt"];
if (!$diffauthor) @$diffauthor=$page["host:$diffgmt"];
if (!$diffauthor) $diffauthor="unknown";
$FmtV['$DiffChangeSum'] = PHSC(@$page["csum:$diffgmt"]);
$FmtV['$DiffHost'] = @$page["host:$diffgmt"];
$FmtV['$DiffUserAgent'] = PHSC(@$page["agent:$diffgmt"], ENT_QUOTES);
$FmtV['$DiffAuthor'] = $diffauthor;
$FmtV['$DiffId'] = $k;
$html = $DiffHTMLFunction($pagename, $v);
if ($html===false) continue;
echo FmtPageName($DiffStartFmt,$pagename);
echo $html;
echo FmtPageName($DiffEndFmt,$pagename);
echo FmtPageName($DiffRestoreFmt,$pagename);
}
$LinkFunctions = $lf;
}
# This function converts a single diff entry from the wikipage file
# into HTML, ready for display.
function DiffHTML($pagename, $diff) {
if (@$_REQUEST['nodiff']>'') return '';
global $FmtV, $DiffShow, $DiffAddFmt, $DiffDelFmt, $DiffEndDelAddFmt,
$DiffRenderSourceFunction;
SDV($DiffRenderSourceFunction, 'DiffRenderSource');
$difflines = explode("\n",$diff."\n");
$in=array(); $out=array(); $dtype=''; $html = '';
foreach($difflines as $d) {
if ($d>'') {
if ($d[0]=='-' || $d[0]=='\\') continue;
if ($d[0]=='<') { $out[]=substr($d,2); continue; }
if ($d[0]=='>') { $in[]=substr($d,2); continue; }
}
if (preg_match("/^(\\d+)(,(\\d+))?([adc])(\\d+)(,(\\d+))?/",
$dtype,$match)) {
if (@$match[7]>'') {
$lines='lines';
$count=$match[1].'-'.($match[1]+$match[7]-$match[5]);
} elseif ($match[3]>'') {
$lines='lines'; $count=$match[1].'-'.$match[3];
} else { $lines='line'; $count=$match[1]; }
if ($match[4]=='a' || $match[4]=='c') {
$txt = str_replace('line',$lines,$DiffDelFmt[$match[4]]);
$FmtV['$DiffLines'] = $count;
$html .= FmtPageName($txt,$pagename);
if ($DiffShow['source']=='y')
$html .= "
"
.$DiffRenderSourceFunction($in, $out, 0)
."
";
else $html .= MarkupToHTML($pagename,
preg_replace_callback('/\\(:.*?:\\)/',"cb_diffhtml", join("\n",$in)));
}
if ($match[4]=='d' || $match[4]=='c') {
$txt = str_replace('line',$lines,$DiffAddFmt[$match[4]]);
$FmtV['$DiffLines'] = $count;
$html .= FmtPageName($txt,$pagename);
if ($DiffShow['source']=='y')
$html .= "
"
.$DiffRenderSourceFunction($in, $out, 1)
."
";
else $html .= MarkupToHTML($pagename,
preg_replace_callback('/\\(:.*?:\\)/',"cb_diffhtml",join("\n",$out)));
}
$html .= FmtPageName($DiffEndDelAddFmt,$pagename);
}
$in=array(); $out=array(); $dtype=$d;
}
return $html;
}
function cb_diffhtml($m) { return Keep(PHSC($m[0])); }
function HandleDiff($pagename, $auth='read') {
global $HandleDiffFmt, $PageStartFmt, $PageDiffFmt, $PageEndFmt;
$page = RetrieveAuthPage($pagename, $auth, true, READPAGE_CURRENT);
if (!$page) { Abort("?cannot diff $pagename"); }
PCache($pagename, $page);
SDV($HandleDiffFmt,array(&$PageStartFmt,
&$PageDiffFmt,"
", 'function:PrintDiff', '
',
&$PageEndFmt));
PrintFmt($pagename,$HandleDiffFmt);
}
## Functions for simple word-diff (written by Petko Yotov)
function DiffRenderSource($in, $out, $which) {
global $WordDiffFunction, $EnableDiffInline;
if (!IsEnabled($EnableDiffInline, 1)) {
$a = $which? $out : $in;
return str_replace("\n","
",PHSC(join("\n",$a)));
}
$countdifflines = abs(count($in)-count($out));
$lines = $cnt = $x2 = $y2 = array();
foreach($in as $line) {
$tmp = $countdifflines>20 ? array($line) : DiffPrepareInline($line);
if (!$which) $cnt[] = array(count($x2), count($tmp));
$x2 = array_merge($x2, $tmp);
}
foreach($out as $line) {
$tmp = $countdifflines>20 ? array($line) : DiffPrepareInline($line);
if ($which) $cnt[] = array(count($y2), count($tmp));
$y2 = array_merge($y2, $tmp);
}
$z = $WordDiffFunction(implode("\n", $x2), implode("\n", $y2));
$z2 = array_map('PHSC', ($which? $y2 : $x2));
array_unshift($z2, '');
foreach (explode("\n", $z) as $zz) {
if (preg_match('/^(\\d+)(,(\\d+))?([adc])(\\d+)(,(\\d+))?/',$zz,$m)) {
$a1 = $a2 = $m[1];
if (@$m[3]) $a2=$m[3];
$b1 = $b2 = $m[5];
if (@$m[7]) $b2=$m[7];
if (!$which && ($m[4]=='c'||$m[4]=='d')) {
$z2[$a1] = '
'. $z2[$a1];
$z2[$a2] .= '';
}
if ($which && ($m[4]=='c'||$m[4]=='a')) {
$z2[$b1] = '
'.$z2[$b1];
$z2[$b2] .= '';
}
}
}
$line = array_shift($z2);
$z2[0] = $line.$z2[0];
foreach ($cnt as $a) $lines[] = implode('', array_slice($z2, $a[0], $a[1]));
$ret = implode("\n", $lines);
$ret = str_replace(array('
', ' '), ' ', $ret);
$ret = preg_replace('/(<(ins|del)>|^) /', '$1 ', $ret);
return str_replace(array(" ", "\n ", "\n"),array(" ", "
", "
"),$ret);
}
## Split a line into pieces before passing it through `diff`
function DiffPrepareInline($x) {
global $DiffSplitInlineDelims;
SDV($DiffSplitInlineDelims, "-@!?#$%^&*()=+[]{}.'\"\\:|,<>_/;~");
return preg_split("/([".preg_quote($DiffSplitInlineDelims, '/')."\\s])/",
$x, -1, PREG_SPLIT_DELIM_CAPTURE);
}
SDV($WordDiffFunction, 'PHPDiff'); # faster than sysdiff for many calls
if (IsEnabled($EnableDiffInline, 1) && $DiffShow['source'] == 'y'
&& $WordDiffFunction == 'PHPDiff' && !function_exists('PHPDiff'))
include_once("$FarmD/scripts/phpdiff.php");
## Show diff before the preview Cookbook:PreviewChanges
function PreviewDiff($pagename,&$page,&$new) {
global $FmtV, $DiffFunction, $DiffHTMLFunction, $EnableDiffInline, $DiffShow;
if (@$_REQUEST['preview']>'' && @$page['text']>'' && $page['text']!=$new['text']) {
$d = IsEnabled($DiffShow['source'], 'y');
$e = IsEnabled($EnableDiffInline, 1);
$DiffShow['source'] = 'y';
$EnableDiffInline = 1;
SDV($DiffHTMLFunction, 'DiffHTML');
$diff = $DiffFunction($new['text'], $page['text']);# reverse the diff
$FmtV['$PreviewText'] = $DiffHTMLFunction($pagename, $diff).'
'.@$FmtV['$PreviewText'];
$DiffShow['source'] = $d;
$EnableDiffInline = $e;
}
}
if (IsEnabled($EnablePreviewChanges, 0) && @$_REQUEST['preview']>'') {
$EditFunctions[] = 'PreviewDiff';
}