*/ include_once("inc/common.php"); include_once("inc/html.php"); include_once("inc/format.php"); require_once("lang/en/lang.php"); require_once("lang/".$conf['lang']."/lang.php"); /** * The main parser function. * * Accepts raw data and returns valid xhtml * * @author Andreas Gohr */ function parse($text){ global $parser; global $conf; $table = array(); $hltable = array(); //preparse $text = preparse($text,$table,$hltable); //padding with a newline $text = "\n".$text."\n"; #for link matching $urls = '(https?|telnet|gopher|file|wais|ftp|ed2k|irc)'; $ltrs = '\w'; $gunk = '/\#~:.?+=&%@!\-'; $punc = '.:?\-;,'; $host = $ltrs.$punc; $any = $ltrs.$gunk.$punc; /* first pass */ //preformated texts firstpass($table,$text,"#(.*?)#se","preformat('\\1','nowiki')"); firstpass($table,$text,"#%%(.*?)%%#se","preformat('\\1','nowiki')"); firstpass($table,$text,"#(.*?)#se","preformat('\\3','code','\\2')"); firstpass($table,$text,"#(.*?)#se","preformat('\\1','file')"); // html and php includes firstpass($table,$text,"#(.*?)#se","preformat('\\1','html')"); firstpass($table,$text,"#(.*?)#se","preformat('\\1','php')"); // codeblocks firstpass($table,$text,"/(\n( {2,}|\t)[^\*\-\n ][^\n]+)(\n( {2,}|\t)[^\n]*)*/se","preformat('\\0','block')","\n"); //check if toc is wanted if(!isset($parser['toc'])){ if(strpos($text,'~~NOTOC~~')!== false){ $text = str_replace('~~NOTOC~~','',$text); $parser['toc'] = false; }else{ $parser['toc'] = true; } } //check if this file may be cached if(!isset($parser['cache'])){ if(strpos($text,'~~NOCACHE~~')!=false){ $text = str_replace('~~NOCACHE~~','',$text); $parser['cache'] = false; }else{ $parser['cache'] = true; } } //headlines format_headlines($table,$hltable,$text); //links firstpass($table,$text,"#\[\[([^\]]+?)\]\]#ie","linkformat('\\1')"); //media firstpass($table,$text,"/\{\{([^\}]+)\}\}/se","mediaformat('\\1')"); //match full URLs (adapted from Perl cookbook) firstpass($table,$text,"#(\b)($urls://[$any]+?)([$punc]*[^$any])#ie","linkformat('\\2')",'\1','\4'); //short www URLs firstpass($table,$text,"#(\b)(www\.[$host]+?\.[$host]+?[$any]+?)([$punc]*[^$any])#ie","linkformat('http://\\2|\\2')",'\1','\3'); //windows shares firstpass($table,$text,"#([$gunk$punc\s])(\\\\\\\\[$host]+?\\\\[$any]+?)([$punc]*[^$any])#ie","linkformat('\\2')",'\1','\3'); //short ftp URLs firstpass($table,$text,"#(\b)(ftp\.[$host]+?\.[$host]+?[$any]+?)([$punc]*[^$any])#ie","linkformat('ftp://\\2')",'\1','\3'); // email@domain.tld firstpass($table,$text,"#<([\w0-9\-_.]+?)@([\w\-]+\.([\w\-\.]+\.)*[\w]+)>#ie", "linkformat('\\1@\\2')"); //CamelCase if wanted if($conf['camelcase']){ firstpass($table,$text,"#(\b)([A-Z]+[a-z]+[A-Z][A-Za-z]*)(\b)#se","linkformat('\\2')",'\1','\3'); } $text = htmlspecialchars($text); //smileys smileys($table,$text); //acronyms acronyms($table,$text); /* second pass for simple formating */ $text = simpleformat($text); /* third pass - insert the matches from 1st pass */ reset($table); while (list($key, $val) = each($table)) { $text = str_replace($key,$val,$text); } /* remove empty paragraphs */ $text = preg_replace('"

\n*

"','',$text); /* remove padding */ $text = trim($text); return $text; } /** * Line by line preparser * * This preparses the text by walking it line by line. This * is the only place where linenumbers are still available (needed * for section edit. Some precautions have to be taken to not change * any noparse block. * * @author Andreas Gohr */ function preparse($text,&$table,&$hltable){ $lines = split("\n",$text); //prepare a tokens for paragraphs $po = mkToken(); $table[$po] = "

"; $pc = mkToken(); $table[$pc] = "

"; for ($l=0; $l(.*?)#","",$line); $line = preg_replace("#%%(.*?)%%#","",$line); $line = preg_replace("#(.*?)#","",$line); $line = preg_replace("#(.*?)#","",$line); $line = preg_replace("#(.*?)#","",$line); $line = preg_replace("#(.*?)#","",$line); //check for start of multiline noparse areas if(preg_match('#^.*?<(nowiki|code|php|html|file)( (\w+))?>#',$line,$matches)){ list($noparse) = split(" ",$matches[1]); //remove options $noparse = ''; continue; }elseif(preg_match('#^.*?%%#',$line)){ $noparse = '%%'; continue; } } //handle headlines if(preg_match('/^(\s)*(==+)(.+?)(==+)(\s*)$/',$lines[$l],$matches)){ //get token $tk = tokenize_headline($hltable,$matches[2],$matches[3],$l); //replace line with token $lines[$l] = $tk; } //handle paragraphs if(empty($lines[$l])){ $lines[$l] = "$pc\n$po"; } } //reassemble full text $text = join("\n",$lines); //open first and close last paragraph $text = "$po\n$text\n$pc"; return $text; } /** * Build TOC lookuptable * * This function adds some information about the given headline * to a lookuptable to be processed later. Returns a unique token * that idetifies the headline later * * @author Andreas Gohr */ function tokenize_headline(&$hltable,$pre,$hline,$lno){ switch (strlen($pre)){ case 2: $lvl = 5; break; case 3: $lvl = 4; break; case 4: $lvl = 3; break; case 5: $lvl = 2; break; default: $lvl = 1; break; } $token = mkToken(); $hltable[] = array( 'name' => htmlspecialchars(trim($hline)), 'level' => $lvl, 'line' => $lno, 'token' => $token ); return $token; } /** * Headline formatter * * @author Andreas Gohr */ function format_headlines(&$table,&$hltable,&$text){ global $parser; global $conf; global $lang; global $ID; // walk the headline table prepared in preparsing $last = 0; $cnt = 0; $hashs = array(); foreach($hltable as $hl){ $cnt++; //make unique headlinehash $hash = cleanID($hl['name']); $i=2; while(in_array($hash,$hashs)) $hash = cleanID($hl['name']).$i++; $hashs[] = $hash; // build headline $headline = "

\n"; //close paragraph if($cnt - 1) $headline .= ''; //no close on first HL $headline .= ''; $headline .= ''; $headline .= $hl['name']; $headline .= ''; $headline .= '
'; $headline .= "\n

"; //open new paragraph //remember for autoTOC if($hl['level'] <= $conf['maxtoclevel']){ $content[] = array('id' => $hash, 'name' => $hl['name'], 'level' => $hl['level']); } //add link for section edit for HLs 1, and 3 if( ($hl['level'] <= $conf['maxseclevel']) && ($hl['line'] - $last > 1)){ $secedit = ''; $headline = $secedit.$headline; $last = $hl['line']; } //put headline into firstpasstable $table[$hl['token']] = $headline; } //add link for editing the last section if($last){ $secedit = ''; $token = mktoken(); $text .= $token; $table[$token] = $secedit; } //close last div if ($cnt){ $token = mktoken(); $text .= $token; $table[$token] = '

'; } //prepend toc if ($parser['toc'] && count($content) > 2){ $token = mktoken(); $text = $token.$text; $table[$token] = html_toc($content); } } /** * Formats various link types using the functions from format.php * * @author Andreas Gohr */ function linkformat($match){ global $conf; //unescape $match = str_replace('\\"','"',$match); //prepare variables for the formaters $link = array(); list($link['url'],$link['name']) = split('\|',$match,2); $link['url'] = trim($link['url']); $link['name'] = trim($link['name']); $link['class'] = ''; $link['target'] = ''; $link['style'] = ''; $link['pre'] = ''; $link['suf'] = ''; $link['more'] = ''; //save real name for image check $realname = $link['name']; /* put it into the right formater */ if(strpos($link['url'],'>')){ // InterWiki $link = format_link_interwiki($link); }elseif(preg_match('#^([a-z0-9]+?){1}://#i',$link['url'])){ // external URL $link = format_link_externalurl($link); }elseif(preg_match("/^\\\\\\\\([a-z0-9\-_.]+)\\\\(.+)$/",$link['url'])){ // windows shares $link = format_link_windows($link); }elseif(preg_match('#([a-z0-9\-_.]+?)@([\w\-]+\.([\w\-\.]+\.)*[\w]+)#i',$link['url'])){ // email $link = format_link_email($link); }else{ // wiki link $link = format_link_wiki($link); } //is realname an image? use media formater if(preg_match('#^{{.*?\.(gif|png|jpe?g)(\?.*?)?\s*(\|.*?)?}}$#',$realname)){ $link['name'] = substr($realname,2,-2); $link = format_link_media($link); } // build the replacement with the variables set by the formaters return format_link_build($link); } /** * Simple text formating and typography is done here * * @author Andreas Gohr */ function simpleformat($text){ global $conf; $text = preg_replace('/__(.+?)__/s','\1',$text); //underline $text = preg_replace('/\/\/(.+?)\/\//s','\1',$text); //emphasize $text = preg_replace('/\*\*(.+?)\*\*/s','\1',$text); //bold $text = preg_replace('/\'\'(.+?)\'\'/s','\1',$text); //code $text = preg_replace('#<del>(.*?)</del>#is','\1',$text); //deleted $text = preg_replace('/^(\s)*----+(\s*)$/m',"

\n
\n

",$text); //hr //sub and superscript $text = preg_replace('#<sub>(.*?)</sub>#is','\1',$text); $text = preg_replace('#<sup>(.*?)</sup>#is','\1',$text); //do quoting $text = preg_replace("/\n((>)[^\n]*?\n)+/se","'\n'.quoteformat('\\0').'\n'",$text); // Typography if($conf['typography']){ $text = preg_replace('/([^-])--([^-])/s','\1–\2',$text); //endash $text = preg_replace('/([^-])---([^-])/s','\1—\2',$text); //emdash $text = preg_replace('/"([^\"]+?)"/s','“\1”',$text); //curly quotes $text = preg_replace('/(\s)\'(\S)/m','\1‘\2',$text); //single open quote $text = preg_replace('/(\S)\'/','\1’',$text); //single closing quote or apostroph $text = preg_replace('/\.\.\./','\1…\2',$text); //ellipse $text = preg_replace('/(\d+)x(\d+)/i','\1×\2',$text); //640x480 $text = preg_replace('/>>/i','»',$text); // >> $text = preg_replace('/<</i','«',$text); // << $text = preg_replace('/<->/i','↔',$text); // <-> $text = preg_replace('/<-/i','←',$text); // <- $text = preg_replace('/->/i','→',$text); // -> $text = preg_replace('/<=>/i','⇔',$text); // <=> $text = preg_replace('/<=/i','⇐',$text); // <= $text = preg_replace('/=>/i','⇒',$text); // => $text = preg_replace('/\(c\)/i','©',$text); // copyrigtht $text = preg_replace('/\(r\)/i','®',$text); // registered $text = preg_replace('/\(tm\)/i','™',$text); // trademark } //forced linebreaks $text = preg_replace('#\\\\\\\\(\s)#',"
\\1",$text); // lists (blocks leftover after blockformat) $text = preg_replace("/(\n( {2,}|\t)[\*\-][^\n]+)(\n( {2,}|\t)[^\n]*)*/se","\"\\n\".listformat('\\0')",$text); // tables $text = preg_replace("/\n(([\|\^][^\n]*?)+[\|\^] *\n)+/se","\"\\n\".tableformat('\\0')",$text); // footnotes $text = footnotes($text); // run custom text replacements $text = customs($text); return $text; } /** * Footnote formating * * @author Andreas Gohr */ function footnotes($text){ $num = 0; while (preg_match('/\(\((.+?)\)\)/s',$text,$match)){ $num++; $fn = $match[1]; $linkt = ''.$num.')'; $linkb = ''.$num.')'; $text = preg_replace('/ ?\(\((.+?)\)\)/s',$linkt,$text,1); if($num == 1) $text .= '

'; $text .= '
'.$linkb.' '.$fn.'
'; } if($num) $text .= '
'; return $text; } /** * Replace smileys with their graphic equivalents * * @author Andreas Gohr */ function smileys(&$table,&$text){ $smileys = file('conf/smileys.conf'); foreach($smileys as $smiley){ $smiley = preg_replace('/#.*$/','',$smiley); //ignore comments $smiley = trim($smiley); if(empty($smiley)) continue; $sm = preg_split('/\s+/',$smiley,2); $sm[1] = ''.$sm[0].''; $sm[0] = preg_quote($sm[0],'/'); firstpass($table,$text,'/(\W)'.$sm[0].'(\W)/s',$sm[1],"\\1","\\2"); } } /** * Add acronym tags to known acronyms * * @author Andreas Gohr */ function acronyms(&$table,&$text){ $acronyms = file('conf/acronyms.conf'); foreach($acronyms as $acro){ $acro = preg_replace('/#.*$/','',$acro); //ignore comments $acro = trim($acro); if(empty($acro)) continue; list($ac,$desc) = preg_split('/\s+/',$acro,2); $ac = preg_quote($ac,'/'); firstpass($table,$text,'/(\b)('.$ac.')(\b)/s',"\\2","\\1","\\3"); } } /** * Apply custom text replacements * * @author Andreas Gohr */ function customs($text){ $reps = file ('conf/custom.conf'); foreach($reps as $rep){ //strip comments only outside a regexp $rep = preg_replace('/#[^\/]*$/','',$rep); //ignore comments $rep = trim($rep); if(empty($rep)) continue; if(preg_match('#^(/.+/\w*)\s+\'(.*)\'$#',$rep,$matches)){ $text = preg_replace($matches[1],$matches[2],$text); } } return $text; } /** * Replace regexp with token * * @author Andreas Gohr */ function firstpass(&$table,&$text,$regexp,$replace,$lpad='',$rpad=''){ //extended regexps have to be disabled for inserting the token //and later reenabled when handling the actual code: $ext=''; if(substr($regexp,-1) == 'e'){ $ext='e'; $regexp = substr($regexp,0,-1); } while(preg_match($regexp,$text,$matches)){ $token = mkToken(); $match = $matches[0]; $text = preg_replace($regexp,$lpad.$token.$rpad,$text,1); $table[$token] = preg_replace($regexp.$ext,$replace,$match); } } /** * create a random and hopefully unique token * * @author Andreas Gohr */ function mkToken(){ return '~'.md5(uniqid(rand(), true)).'~'; } /** * Do quote blocks * * @author Andreas Gohr */ function quoteformat($block){ $block = trim($block); $lines = split("\n",$block); $lvl = 0; $ret = ""; foreach ($lines as $line){ //remove '>' and count them $cnt = 0; while(substr($line,0,4) == '>'){ $line = substr($line,4); $cnt++; } //compare to last level and open or close new divs if needed if($cnt > $lvl){ $ret .= "

\n"; for ($i=0; $i< $cnt - $lvl; $i++){ $ret .= '
'; } $ret .= "\n

"; }elseif($cnt < $lvl){ $ret .= "\n

"; for ($i=0; $i< $lvl - $cnt; $i++){ $ret .= "
\n"; } $ret .= "

\n"; }elseif(empty($line)){ $ret .= "

\n

"; } //keep rest of line but trim left whitespaces $ret .= ltrim($line)."\n"; //remember level $lvl = $cnt; } //close remaining divs $ret .= "

\n"; for ($i=0; $i< $lvl; $i++){ $ret .= "\n"; } $ret .= "

\n"; return "$ret"; } /** * format inline tables * * @author Andreas Gohr */ function tableformat($block) { $block = trim($block); $lines = split("\n",$block); $ret = ""; //build a row array $rows = array(); for($r=0; $r < count($lines); $r++){ $line = $lines[$r]; //remove last seperator and trailing whitespace $line = preg_replace('/[\|\^]\s*$/', '', $line); $c = -1; //prepare colcounter) for($chr=0; $chr < strlen($line); $chr++){ if($line[$chr] == '^'){ $c++; $rows[$r][$c]['head'] = true; $rows[$r][$c]['data'] = ''; }elseif($line[$chr] == '|'){ $c++; $rows[$r][$c]['head'] = false; $rows[$r][$c]['data'] = ''; }else{ $rows[$r][$c]['data'].= $line[$chr]; } } } //build table $ret .= "

\n\n"; for($r=0; $r < count($rows); $r++){ $ret .= " \n"; for ($c=0; $c < count($rows[$r]); $c++){ $cspan=1; $data = trim($rows[$r][$c]['data']); $head = $rows[$r][$c]['head']; //join cells if next is empty while($c < count($rows[$r])-1 && $rows[$r][$c+1]['data'] == ''){ $c++; $cspan++; } if($cspan > 1){ $cspan = 'colspan="'.$cspan.'"'; }else{ $cspan = ''; } if ($head) { $ret .= " \n"; } else { $ret .= " \n"; } } $ret .= " \n"; } $ret .= "
$data$data
\n

"; return $ret; } /** * format lists * * @author Andreas Gohr */ function listformat($block){ //remove 1st newline $block = substr($block,1); //unescape $block = str_replace('\\"','"',$block); //dbg($block); //walk line by line $ret=''; $lst=0; $lvl=0; $enc=0; $lines = split("\n",$block); //build an item array $cnt=0; $items = array(); foreach ($lines as $line){ //get intendion level $lvl = 0; $lvl += floor(strspn($line,' ')/2); $lvl += strspn($line,"\t"); //remove indents $line = preg_replace('/^[ \t]+/','',$line); //get type of list (substr($line,0,1) == '-') ? $type='ol' : $type='ul'; // remove bullet and following spaces $line = preg_replace('/^[*\-]\s*/','',$line); //add item to the list $items[$cnt]['level'] = $lvl; $items[$cnt]['type'] = $type; $items[$cnt]['text'] = $line; //increase counter $cnt++; } $level = 0; $opens = array(); foreach ($items as $item){ if( $item['level'] > $level ){ //open new list $ret .= "\n<".$item['type'].">\n"; array_push($opens,$item['type']); }elseif( $item['level'] < $level ){ //close last item $ret .= "\n"; for ($i=0; $i<($level - $item['level']); $i++){ //close higher lists $ret .= '\n\n"; } }elseif($item['type'] != $opens[count($opens)-1]){ //close last list and open new $ret .= '\n\n"; $ret .= "\n<".$item['type'].">\n"; array_push($opens,$item['type']); }else{ //close last item $ret .= "\n"; } //remember current level and type $level = $item['level']; //print item $ret .= '

  • '; $ret .= ''.$item['text'].''; } //close remaining items and lists while ($open = array_pop($opens)){ $ret .= "
    • \n"; $ret .= '\n"; } return "

    \n".$ret."\n

    "; } /** * Handle preformatted blocks * * Uses GeSHi for syntax highlighting * * @author Andreas Gohr */ function preformat($text,$type,$option=''){ global $conf; global $lang; //unescape $text = str_replace('\\"','"',$text); if($type == 'php' && !$conf['phpok']) $type='file'; if($type == 'html' && !$conf['htmlok']) $type='file'; switch ($type){ case 'php': ob_start(); eval($text); $text = ob_get_contents(); ob_end_clean(); break; case 'html': break; case 'nowiki': $text = htmlspecialchars($text); break; case 'file': $text = htmlspecialchars($text); $text = "

    \n
    ".$text."
    \n

    "; break; case 'code': if(empty($option)){ $text = htmlspecialchars($text); $text = '

    '.$text.'
    '; }else{ //strip leading blank line $text = preg_replace('/^\s*?\n/','',$text); //use geshi for highlighting require_once("inc/geshi.php"); $geshi = new GeSHi($text, strtolower($option), "inc/geshi"); $geshi->set_encoding($lang['encoding']); $geshi->enable_classes(); $geshi->set_header_type(GESHI_HEADER_PRE); $geshi->set_overall_class('code'); $geshi->set_link_target($conf['target']['extern']); $text = $geshi->parse_code(); } $text = "

    \n".$text."\n

    "; break; case 'block': $text = substr($text,1); //remove 1st newline $lines = split("\n",$text); //break into lines $text = ''; foreach($lines as $line){ $text .= substr($line,2)."\n"; //remove indents } $text = htmlspecialchars($text); $text = "

    \n
    ".$text."
    \n

    "; break; } return $text; } /** * Format embedded media (images) * * @author Andreas Gohr */ function mediaformat($text){ global $conf; //unescape $text = str_replace('\\"','"',$text); // format RSS if(substr($text,0,4) == 'rss>'){ return format_rss(substr($text,4)); } //handle normal media stuff $link = array(); $link['name'] = $text; $link = format_link_media($link); return format_link_build($link); } ?>