> to be used to build "trails" through wiki documents. This feature is automatically included from stdconfig.php unless disabled by $EnableWikiTrails = 0; . To explicitly include this feature, execute include_once("scripts/trails.php"); from config.php somewhere. Once enabled, the <<|TrailPage|>> markup is replaced with << PrevPage | TrailPage | NextPage >> on output. TrailPage should contain either a bullet or number list defining the sequence of pages in the "trail". The ^|TrailPage|^ markup uses the depth of the bullets to display the ancestry of the TrailPage to the current one. The <|TrailPage|> markup is like <<|TrailPage|>> except that "< PrevPage |" and "| NextPage >" are omitted if at the beginning or end of the trail respectively. Thanks to John Rankin for contributing these markups and the original suggestion for WikiTrails. Script maintained by Petko YOTOV www.pmwiki.org/petko */ Markup_e('<<|','<<|','/<\\|([^|]+|\\[\\[(.+?)\\]\\])\\|>/', "PRR(MakeTrailStopB(\$pagename,\$m[1]))"); Markup_e('^|','>/' => '$1', '/<\\|([^|]+|\\[\\[(.+?)\\]\\])\\|>/' => '$1', '/\\^\\|([^|]+|\\[\\[(.+?)\\]\\])\\|\\^/' => '$1')); $Conditions['ontrail'] = 'CondOnTrail($pagename, $condparm)'; function CondOnTrail($pagename, $condparm) { @list($trailname, $pn) = preg_split('/\\s+/', $condparm, 2); $trail = ReadTrail($pagename, $trailname); if (!$trail) return false; $pn = ($pn > '') ? MakePageName($pagename, $pn) : $pagename; foreach($trail as $t) if ($t['pagename'] == $pn) return true; return false; } function ReadTrail($pagename, $trailname) { global $RASPageName, $SuffixPattern, $GroupPattern, $WikiWordPattern, $LinkWikiWords; if (preg_match('/^\\[\\[(.+?)(->|\\|)(.+?)\\]\\]$/', $trailname, $m)) $trailname = ($m[2] == '|') ? $m[1] : $m[3]; $trailtext = RetrieveAuthSection($pagename, $trailname); $trailname = $RASPageName; $trailtext = Qualify($trailname, $trailtext); $t = array(); $n = 0; foreach(explode("\n", PHSC(@$trailtext, ENT_NOQUOTES)) as $x) { $x = preg_replace("/\\[\\[([^\\]]*)->([^\\]]*)\\]\\]/",'[[$2|$1]]',$x); if (!preg_match("/^([#*:]+) \\s* (\\[\\[([^:#!|][^|:]*?)(?:\".*?\")?(\\|.*?)?\\]\\]($SuffixPattern) | (($GroupPattern([\\/.]))?$WikiWordPattern)) (.*)/x",$x,$match)) continue; if (@$match[6]) { if (!$LinkWikiWords) continue; $tgt = MakePageName($trailname, $match[6]); } else $tgt = MakePageName($trailname, $match[3]); $t[$n]['depth'] = $depth = strlen($match[1]); $t[$n]['pagename'] = $tgt; $t[$n]['markup'] = $match[2]; $t[$n]['detail'] = $match[9]; for($i=$depth;$i<10;$i++) $d[$i]=$n; if ($depth>1) $t[$n]['parent']=@$d[$depth-1]; $n++; } return $t; } function MakeTrailStop($pagename,$trailname) { $t = ReadTrail($pagename,$trailname); $prev=''; $next=''; for($i=0;$i0) $prev = $t[$i-1]['markup']; if ($i+1<< $prev | $trailname | $next >>"; } function MakeTrailStopB($pagename,$trailname) { $t = ReadTrail($pagename,$trailname); $prev = ''; $next = ''; for($i=0;$i0) $prev = '< '.$t[$i-1]['markup'].' | '; if ($i+1$prev$trailname$next"; } function MakeTrailPath($pagename,$trailname) { global $TrailPathSep; SDV($TrailPathSep,' | '); $t = ReadTrail($pagename,$trailname); $crumbs = ''; for($i=0;$i0) { $crumbs = $TrailPathSep.$t[$i]['markup'].$crumbs; $i = @$t[$i]['parent']; } return "$trailname$crumbs"; } } return "$trailname"; }