include/bbcode.php

   1 <?php
   2
   3 require_once("include/oembed.php");
   4 require_once('include/event.php');
   5
   6 function bb_cleanstyle($st) {
   7   return "<span style=\"".cleancss($st[1]).";\">".$st[2]."</span>";
   8 }
   9
  10 function bb_cleanclass($st) {
  11   return "<span class=\"".cleancss($st[1])."\">".$st[2]."</span>";
  12 }
  13
  14 function cleancss($input) {
  15
  16         $cleaned = "";
  17
  18         $input = strtolower($input);
  19
  20         for ($i = 0; $i < strlen($input); $i++) {
  21                 $char = substr($input, $i, 1);
  22
  23                 if (($char >= "a") and ($char <= "z"))
  24                         $cleaned .= $char;
  25
  26                 if (!(strpos(" #;:0123456789", $char) === false))
  27                         $cleaned .= $char;
  28         }
  29
  30         return($cleaned);
  31 }
  32
  33 function stripcode_br_cb($s) {
  34         return '[code]' . str_replace('<br />', '', $s[1]) . '[/code]';
  35 }
  36
  37 function tryoembed($match){
  38         $url = ((count($match)==2)?$match[1]:$match[2]);
  39 //      logger("tryoembed: $url");
  40
  41         $o = oembed_fetch_url($url);
  42
  43         //echo "<pre>"; var_dump($match, $url, $o); killme();
  44
  45         if ($o->type=="error") return $match[0];
  46
  47         $html = oembed_format_object($o);
  48         return $html; //oembed_iframe($html,$o->width,$o->height);
  49
  50 }
  51
  52 // [noparse][i]italic[/i][/noparse] turns into
  53 // [noparse][ i ]italic[ /i ][/noparse],
  54 // to hide them from parser.
  55
  56 function bb_spacefy($st) {
  57   $whole_match = $st[0];
  58   $captured = $st[1];
  59   $spacefied = preg_replace("/\[(.*?)\]/", "[ $1 ]", $captured);
  60   $new_str = str_replace($captured, $spacefied, $whole_match);
  61   return $new_str;
  62 }
  63
  64 // The previously spacefied [noparse][ i ]italic[ /i ][/noparse],
  65 // now turns back and the [noparse] tags are trimed
  66 // returning [i]italic[/i]
  67
  68 function bb_unspacefy_and_trim($st) {
  69   $whole_match = $st[0];
  70   $captured = $st[1];
  71   $unspacefied = preg_replace("/\[ (.*?)\ ]/", "[$1]", $captured);
  72   return $unspacefied;
  73 }
  74
  75 function bb_find_open_close($s, $open, $close, $occurance = 1) {
  76
  77         if($occurance < 1)
  78                 $occurance = 1;
  79
  80         $start_pos = -1;
  81         for($i = 1; $i <= $occurance; $i++) {
  82                 if( $start_pos !== false)
  83                         $start_pos = strpos($s, $open, $start_pos + 1);
  84         }
  85
  86         if( $start_pos === false)
  87                 return false;
  88
  89         $end_pos = strpos($s, $close, $start_pos);
  90
  91         if( $end_pos === false)
  92                 return false;
  93
  94         $res = array( 'start' => $start_pos, 'end' => $end_pos );
  95
  96         return $res;
  97 }
  98
  99 function get_bb_tag_pos($s, $name, $occurance = 1) {
 100
 101         if($occurance < 1)
 102                 $occurance = 1;
 103
 104         $start_open = -1;
 105         for($i = 1; $i <= $occurance; $i++) {
 106                 if( $start_open !== false)
 107                         $start_open = strpos($s, '[' . $name, $start_open + 1); // allow [name= type tags
 108         }
 109
 110         if( $start_open === false)
 111                 return false;
 112
 113         $start_equal = strpos($s, '=', $start_open);
 114         $start_close = strpos($s, ']', $start_open);
 115
 116         if( $start_close === false)
 117                 return false;
 118
 119         $start_close++;
 120
 121         $end_open = strpos($s, '[/' . $name . ']', $start_close);
 122
 123         if( $end_open === false)
 124                 return false;
 125
 126         $res = array( 'start' => array('open' => $start_open, 'close' => $start_close),
 127                       'end' => array('open' => $end_open, 'close' => $end_open + strlen('[/' . $name . ']')) );
 128         if( $start_equal !== false)
 129                 $res['start']['equal'] = $start_equal + 1;
 130
 131         return $res;
 132 }
 133
 134 function bb_tag_preg_replace($pattern, $replace, $name, $s) {
 135
 136         $string = $s;
 137
 138         $occurance = 1;
 139         $pos = get_bb_tag_pos($string, $name, $occurance);
 140         while($pos !== false && $occurance < 1000) {
 141
 142                 $start = substr($string, 0, $pos['start']['open']);
 143                 $subject = substr($string, $pos['start']['open'], $pos['end']['close'] - $pos['start']['open']);
 144                 $end = substr($string, $pos['end']['close']);
 145                 if($end === false)
 146                         $end = '';
 147
 148                 $subject = preg_replace($pattern, $replace, $subject);
 149                 $string = $start . $subject . $end;
 150
 151                 $occurance++;
 152                 $pos = get_bb_tag_pos($string, $name, $occurance);
 153         }
 154
 155         return $string;
 156 }
 157
 158 if(! function_exists('bb_extract_images')) {
 159 function bb_extract_images($body) {
 160
 161         $saved_image = array();
 162         $orig_body = $body;
 163         $new_body = '';
 164
 165         $cnt = 0;
 166         $img_start = strpos($orig_body, '[img');
 167         $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
 168         $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
 169         while(($img_st_close !== false) && ($img_end !== false)) {
 170
 171                 $img_st_close++; // make it point to AFTER the closing bracket
 172                 $img_end += $img_start;
 173
 174                 if(! strcmp(substr($orig_body, $img_start + $img_st_close, 5), 'data:')) {
 175                         // This is an embedded image
 176
 177                         $saved_image[$cnt] = substr($orig_body, $img_start + $img_st_close, $img_end - ($img_start + $img_st_close));
 178                         $new_body = $new_body . substr($orig_body, 0, $img_start) . '[$#saved_image' . $cnt . '#$]';
 179
 180                         $cnt++;
 181                 }
 182                 else
 183                         $new_body = $new_body . substr($orig_body, 0, $img_end + strlen('[/img]'));
 184
 185                 $orig_body = substr($orig_body, $img_end + strlen('[/img]'));
 186
 187                 if($orig_body === false) // in case the body ends on a closing image tag
 188                         $orig_body = '';
 189
 190                 $img_start = strpos($orig_body, '[img');
 191                 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
 192                 $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
 193         }
 194
 195         $new_body = $new_body . $orig_body;
 196
 197         return array('body' => $new_body, 'images' => $saved_image);
 198 }}
 199
 200 if(! function_exists('bb_replace_images')) {
 201 function bb_replace_images($body, $images) {
 202
 203         $newbody = $body;
 204
 205         $cnt = 0;
 206         foreach($images as $image) {
 207                 // We're depending on the property of 'foreach' (specified on the PHP website) that
 208                 // it loops over the array starting from the first element and going sequentially
 209                 // to the last element
 210                 $newbody = str_replace('[$#saved_image' . $cnt . '#$]', '<img src="' . $image .'" alt="' . t('Image/photo') . '" />', $newbody);
 211                 $cnt++;
 212         }
 213
 214         return $newbody;
 215 }}
 216
 217 function bb_ShareAttributes($match) {
 218
 219         $attributes = $match[1];
 220
 221         $author = "";
 222         preg_match("/author='(.*?)'/ism", $attributes, $matches);
 223         if ($matches[1] != "")
 224                 $author = html_entity_decode($matches[1],ENT_QUOTES,'UTF-8');
 225
 226         preg_match('/author="(.*?)"/ism', $attributes, $matches);
 227         if ($matches[1] != "")
 228                 $author = $matches[1];
 229
 230         $link = "";
 231         preg_match("/link='(.*?)'/ism", $attributes, $matches);
 232         if ($matches[1] != "")
 233                 $link = $matches[1];
 234
 235         preg_match('/link="(.*?)"/ism', $attributes, $matches);
 236         if ($matches[1] != "")
 237                 $link = $matches[1];
 238
 239         $avatar = "";
 240         preg_match("/avatar='(.*?)'/ism", $attributes, $matches);
 241         if ($matches[1] != "")
 242                 $avatar = $matches[1];
 243
 244         preg_match('/avatar="(.*?)"/ism', $attributes, $matches);
 245         if ($matches[1] != "")
 246                 $avatar = $matches[1];
 247
 248         $profile = "";
 249         preg_match("/profile='(.*?)'/ism", $attributes, $matches);
 250         if ($matches[1] != "")
 251                 $profile = $matches[1];
 252
 253         preg_match('/profile="(.*?)"/ism', $attributes, $matches);
 254         if ($matches[1] != "")
 255                 $profile = $matches[1];
 256
 257         $posted = "";
 258         preg_match("/posted='(.*?)'/ism", $attributes, $matches);
 259         if ($matches[1] != "")
 260                 $posted = $matches[1];
 261
 262         preg_match('/posted="(.*?)"/ism', $attributes, $matches);
 263         if ($matches[1] != "")
 264                 $posted = $matches[1];
 265                 $reldate = (($posted) ? " " . relative_date($posted) : '');
 266
 267         $headline = '<div class="shared_header">';
 268
 269         if ($avatar != "")
 270                 $headline .= '<img src="'.$avatar.'" height="32" width="32" >';
 271
 272         $headline .= sprintf(t('<span><a href="%s" target="external-link">%s</a> wrote the following <a href="%s" target="external-link">post</a>'.$reldate.':</span>'), $profile, $author, $link);
 273
 274         $headline .= "</div>";
 275
 276         $text = $headline.'<blockquote class="shared_content">'.trim($match[2])."</blockquote>";
 277
 278         return($text);
 279 }
 280
 281 function bb_ShareAttributesSimple($match) {
 282
 283         $attributes = $match[1];
 284
 285         $author = "";
 286         preg_match("/author='(.*?)'/ism", $attributes, $matches);
 287         if ($matches[1] != "")
 288                 $author = html_entity_decode($matches[1],ENT_QUOTES,'UTF-8');
 289
 290         preg_match('/author="(.*?)"/ism', $attributes, $matches);
 291         if ($matches[1] != "")
 292                 $author = $matches[1];
 293
 294         $profile = "";
 295         preg_match("/profile='(.*?)'/ism", $attributes, $matches);
 296         if ($matches[1] != "")
 297                 $profile = $matches[1];
 298
 299         preg_match('/profile="(.*?)"/ism', $attributes, $matches);
 300         if ($matches[1] != "")
 301                 $profile = $matches[1];
 302
 303         $text = "<br />".html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').' <a href="'.$profile.'">'.$author."</a>: <br />»".$match[2]."«";
 304
 305         return($text);
 306 }
 307
 308         // BBcode 2 HTML was written by WAY2WEB.net
 309         // extended to work with Mistpark/Friendica - Mike Macgirvin
 310
 311 function bbcode($Text,$preserve_nl = false, $tryoembed = true, $simplehtml = false) {
 312
 313         $stamp1 = microtime(true);
 314
 315         $a = get_app();
 316
 317         // Hide all [noparse] contained bbtags by spacefying them
 318         // POSSIBLE BUG --> Will the 'preg' functions crash if there's an embedded image?
 319
 320         $Text = preg_replace_callback("/\[noparse\](.*?)\[\/noparse\]/ism", 'bb_spacefy',$Text);
 321         $Text = preg_replace_callback("/\[nobb\](.*?)\[\/nobb\]/ism", 'bb_spacefy',$Text);
 322         $Text = preg_replace_callback("/\[pre\](.*?)\[\/pre\]/ism", 'bb_spacefy',$Text);
 323
 324
 325         // Move all spaces out of the tags
 326         $Text = preg_replace("/\[(\w*)\](\s*)/ism", '$2[$1]', $Text);
 327         $Text = preg_replace("/(\s*)\[\/(\w*)\]/ism", '[/$2]$1', $Text);
 328
 329         // Extract the private images which use data url's since preg has issues with
 330         // large data sizes. Stash them away while we do bbcode conversion, and then put them back
 331         // in after we've done all the regex matching. We cannot use any preg functions to do this.
 332
 333         $extracted = bb_extract_images($Text);
 334         $Text = $extracted['body'];
 335         $saved_image = $extracted['images'];
 336
 337         // If we find any event code, turn it into an event.
 338         // After we're finished processing the bbcode we'll
 339         // replace all of the event code with a reformatted version.
 340
 341         $ev = bbtoevent($Text);
 342
 343
 344         // Replace any html brackets with HTML Entities to prevent executing HTML or script
 345         // Don't use strip_tags here because it breaks [url] search by replacing & with amp
 346
 347         $Text = str_replace("<", "&lt;", $Text);
 348         $Text = str_replace(">", "&gt;", $Text);
 349
 350         // remove some newlines before the general conversion
 351         $Text = preg_replace("/\s?\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","[share$1]$2[/share]",$Text);
 352         $Text = preg_replace("/\s?\[quote(.*?)\]\s?(.*?)\s?\[\/quote\]\s?/ism","[quote$1]$2[/quote]",$Text);
 353
 354         $Text = preg_replace("/\n\[code\]/ism", "[code]", $Text);
 355         $Text = preg_replace("/\[\/code\]\n/ism", "[/code]", $Text);
 356
 357         // when the content is meant exporting to other systems then remove the avatar picture since this doesn't really look good on these systems
 358         if (!$tryoembed)
 359                 $Text = preg_replace("/\[share(.*?)avatar\s?=\s?'.*?'\s?(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","\n[share$1$2]$3[/share]",$Text);
 360
 361         // Convert new line chars to html <br /> tags
 362
 363         // nlbr seems to be hopelessly messed up
 364         //      $Text = nl2br($Text);
 365
 366         // We'll emulate it.
 367
 368         $Text = trim($Text);
 369         $Text = str_replace("\r\n","\n", $Text);
 370
 371         // removing multiplicated newlines
 372         if (get_config("system", "remove_multiplicated_lines")) {
 373                 $search = array("\n\n\n", "\n ", " \n", "[/quote]\n\n", "\n[/quote]");
 374                 $replace = array("\n\n", "\n", "\n", "[/quote]\n", "[/quote]");
 375                 do {
 376                         $oldtext = $Text;
 377                         $Text = str_replace($search, $replace, $Text);
 378                 } while ($oldtext != $Text);
 379         }
 380
 381         $Text = str_replace(array("\r","\n"), array('<br />','<br />'), $Text);
 382
 383         if($preserve_nl)
 384                 $Text = str_replace(array("\n","\r"), array('',''),$Text);
 385
 386
 387
 388         // Set up the parameters for a URL search string
 389         $URLSearchString = "^\[\]";
 390         // Set up the parameters for a MAIL search string
 391         $MAILSearchString = $URLSearchString;
 392
 393
 394         // Perform URL Search
 395
 396         $Text = preg_replace("/([^\]\='".'"'."]|^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", '$1<a href="$2" target="external-link">$2</a>', $Text);
 397
 398         if ($tryoembed)
 399                 $Text = preg_replace_callback("/\[bookmark\=([^\]]*)\].*?\[\/bookmark\]/ism",'tryoembed',$Text);
 400
 401         $Text = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",'[url=$1]$2[/url]',$Text);
 402
 403         if ($tryoembed)
 404                 $Text = preg_replace_callback("/\[url\]([$URLSearchString]*)\[\/url\]/ism",'tryoembed',$Text);
 405
 406         $Text = preg_replace("/\[url\]([$URLSearchString]*)\[\/url\]/ism", '<a href="$1" target="external-link">$1</a>', $Text);
 407         $Text = preg_replace("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '<a href="$1" target="external-link">$2</a>', $Text);
 408         //$Text = preg_replace("/\[url\=([$URLSearchString]*)\]([$URLSearchString]*)\[\/url\]/ism", '<a href="$1" target="_blank">$2</a>', $Text);
 409
 410         // we may need to restrict this further if it picks up too many strays
 411         // link acct:user@host to a webfinger profile redirector
 412
 413         $Text = preg_replace('/acct:(.*?)@(.*?)([ ,])/', '<a href="' . $a->get_baseurl() . '/acctlink?addr=' . "$1@$2"
 414                 . '" target="extlink" >acct:' . "$1@$2$3" . '</a>',$Text);
 415
 416         // Perform MAIL Search
 417         $Text = preg_replace("/\[mail\]([$MAILSearchString]*)\[\/mail\]/", '<a href="mailto:$1">$1</a>', $Text);
 418         $Text = preg_replace("/\[mail\=([$MAILSearchString]*)\](.*?)\[\/mail\]/", '<a href="mailto:$1">$2</a>', $Text);
 419
 420         // Check for bold text
 421         $Text = preg_replace("(\[b\](.*?)\[\/b\])ism",'<strong>$1</strong>',$Text);
 422
 423         // Check for Italics text
 424         $Text = preg_replace("(\[i\](.*?)\[\/i\])ism",'<em>$1</em>',$Text);
 425
 426         // Check for Underline text
 427         $Text = preg_replace("(\[u\](.*?)\[\/u\])ism",'<u>$1</u>',$Text);
 428
 429         // Check for strike-through text
 430         $Text = preg_replace("(\[s\](.*?)\[\/s\])ism",'<strike>$1</strike>',$Text);
 431
 432         // Check for over-line text
 433         $Text = preg_replace("(\[o\](.*?)\[\/o\])ism",'<span class="overline">$1</span>',$Text);
 434
 435         // Check for colored text
 436         $Text = preg_replace("(\[color=(.*?)\](.*?)\[\/color\])ism","<span style=\"color: $1;\">$2</span>",$Text);
 437
 438         // Check for sized text
 439         // [size=50] --> font-size: 50px (with the unit).
 440         $Text = preg_replace("(\[size=(\d*?)\](.*?)\[\/size\])ism","<span style=\"font-size: $1px;\">$2</span>",$Text);
 441         $Text = preg_replace("(\[size=(.*?)\](.*?)\[\/size\])ism","<span style=\"font-size: $1;\">$2</span>",$Text);
 442
 443         // Check for centered text
 444         $Text = preg_replace("(\[center\](.*?)\[\/center\])ism","<div style=\"text-align:center;\">$1</div>",$Text);
 445
 446         // Check for list text
 447         $Text = str_replace("[*]", "<li>", $Text);
 448
 449         // Check for style sheet commands
 450         $Text = preg_replace_callback("(\[style=(.*?)\](.*?)\[\/style\])ism","bb_cleanstyle",$Text);
 451
 452         // Check for CSS classes
 453         $Text = preg_replace_callback("(\[class=(.*?)\](.*?)\[\/class\])ism","bb_cleanclass",$Text);
 454
 455         // handle nested lists
 456         $endlessloop = 0;
 457
 458         while ((((strpos($Text, "[/list]") !== false) && (strpos($Text, "[list") !== false)) ||
 459                ((strpos($Text, "[/ol]") !== false) && (strpos($Text, "[ol]") !== false)) ||
 460                ((strpos($Text, "[/ul]") !== false) && (strpos($Text, "[ul]") !== false)) ||
 461                ((strpos($Text, "[/li]") !== false) && (strpos($Text, "[li]") !== false))) && (++$endlessloop < 20)) {
 462                 $Text = preg_replace("/\[list\](.*?)\[\/list\]/ism", '<ul class="listbullet" style="list-style-type: circle;">$1</ul>' ,$Text);
 463                 $Text = preg_replace("/\[list=\](.*?)\[\/list\]/ism", '<ul class="listnone" style="list-style-type: none;">$1</ul>' ,$Text);
 464                 $Text = preg_replace("/\[list=1\](.*?)\[\/list\]/ism", '<ul class="listdecimal" style="list-style-type: decimal;">$1</ul>' ,$Text);
 465                 $Text = preg_replace("/\[list=((?-i)i)\](.*?)\[\/list\]/ism",'<ul class="listlowerroman" style="list-style-type: lower-roman;">$2</ul>' ,$Text);
 466                 $Text = preg_replace("/\[list=((?-i)I)\](.*?)\[\/list\]/ism", '<ul class="listupperroman" style="list-style-type: upper-roman;">$2</ul>' ,$Text);
 467                 $Text = preg_replace("/\[list=((?-i)a)\](.*?)\[\/list\]/ism", '<ul class="listloweralpha" style="list-style-type: lower-alpha;">$2</ul>' ,$Text);
 468                 $Text = preg_replace("/\[list=((?-i)A)\](.*?)\[\/list\]/ism", '<ul class="listupperalpha" style="list-style-type: upper-alpha;">$2</ul>' ,$Text);
 469                 $Text = preg_replace("/\[ul\](.*?)\[\/ul\]/ism", '<ul class="listbullet" style="list-style-type: circle;">$1</ul>' ,$Text);
 470                 $Text = preg_replace("/\[ol\](.*?)\[\/ol\]/ism", '<ul class="listdecimal" style="list-style-type: decimal;">$1</ul>' ,$Text);
 471                 $Text = preg_replace("/\[li\](.*?)\[\/li\]/ism", '<li>$1</li>' ,$Text);
 472         }
 473
 474         $Text = preg_replace("/\[th\](.*?)\[\/th\]/sm", '<th>$1</th>' ,$Text);
 475         $Text = preg_replace("/\[td\](.*?)\[\/td\]/sm", '<td>$1</td>' ,$Text);
 476         $Text = preg_replace("/\[tr\](.*?)\[\/tr\]/sm", '<tr>$1</tr>' ,$Text);
 477         $Text = preg_replace("/\[table\](.*?)\[\/table\]/sm", '<table>$1</table>' ,$Text);
 478
 479         $Text = preg_replace("/\[table border=1\](.*?)\[\/table\]/sm", '<table border="1" >$1</table>' ,$Text);
 480         $Text = preg_replace("/\[table border=0\](.*?)\[\/table\]/sm", '<table border="0" >$1</table>' ,$Text);
 481
 482         $Text = str_replace('[hr]','<hr />', $Text);
 483
 484         // This is actually executed in prepare_body()
 485
 486         $Text = str_replace('[nosmile]','',$Text);
 487
 488         // Check for font change text
 489         $Text = preg_replace("/\[font=(.*?)\](.*?)\[\/font\]/sm","<span style=\"font-family: $1;\">$2</span>",$Text);
 490
 491         // Declare the format for [code] layout
 492
 493 //      $Text = preg_replace_callback("/\[code\](.*?)\[\/code\]/ism",'stripcode_br_cb',$Text);
 494
 495         $CodeLayout = '<code>$1</code>';
 496         // Check for [code] text
 497         $Text = preg_replace("/\[code\](.*?)\[\/code\]/ism","$CodeLayout", $Text);
 498
 499         // Declare the format for [spoiler] layout
 500         $SpoilerLayout = '<blockquote class="spoiler">$1</blockquote>';
 501
 502         // Check for [spoiler] text
 503         // handle nested quotes
 504         $endlessloop = 0;
 505         while ((strpos($Text, "[/spoiler]") !== false) and (strpos($Text, "[spoiler]") !== false) and (++$endlessloop < 20))
 506                 $Text = preg_replace("/\[spoiler\](.*?)\[\/spoiler\]/ism","$SpoilerLayout", $Text);
 507
 508         // Check for [spoiler=Author] text
 509
 510         $t_wrote = t('$1 wrote:');
 511
 512         // handle nested quotes
 513         $endlessloop = 0;
 514         while ((strpos($Text, "[/spoiler]")!== false)  and (strpos($Text, "[spoiler=") !== false) and (++$endlessloop < 20))
 515                 $Text = preg_replace("/\[spoiler=[\"\']*(.*?)[\"\']*\](.*?)\[\/spoiler\]/ism",
 516                                      "<br /><strong class=".'"spoiler"'.">" . $t_wrote . "</strong><blockquote class=".'"spoiler"'.">$2</blockquote>",
 517                                      $Text);
 518
 519         // Declare the format for [quote] layout
 520         $QuoteLayout = '<blockquote>$1</blockquote>';
 521
 522         // Check for [quote] text
 523         // handle nested quotes
 524         $endlessloop = 0;
 525         while ((strpos($Text, "[/quote]") !== false) and (strpos($Text, "[quote]") !== false) and (++$endlessloop < 20))
 526                 $Text = preg_replace("/\[quote\](.*?)\[\/quote\]/ism","$QuoteLayout", $Text);
 527
 528         // Check for [quote=Author] text
 529
 530         $t_wrote = t('$1 wrote:');
 531
 532         // handle nested quotes
 533         $endlessloop = 0;
 534         while ((strpos($Text, "[/quote]")!== false)  and (strpos($Text, "[quote=") !== false) and (++$endlessloop < 20))
 535                 $Text = preg_replace("/\[quote=[\"\']*(.*?)[\"\']*\](.*?)\[\/quote\]/ism",
 536                                      "<br /><strong class=".'"author"'.">" . $t_wrote . "</strong><blockquote>$2</blockquote>",
 537                                      $Text);
 538
 539         // [img=widthxheight]image source[/img]
 540         //$Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '<img src="$3" style="height: $2px; width: $1px;" >', $Text);
 541         $Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '<img src="$3" style="width: $1px;" >', $Text);
 542
 543         // Images
 544         // [img]pathtoimage[/img]
 545         $Text = preg_replace("/\[img\](.*?)\[\/img\]/ism", '<img src="$1" alt="' . t('Image/photo') . '" />', $Text);
 546
 547         // Shared content
 548         if (!$simplehtml)
 549                 $Text = preg_replace_callback("/\[share(.*?)\](.*?)\[\/share\]/ism","bb_ShareAttributes",$Text);
 550         else
 551                 $Text = preg_replace_callback("/\[share(.*?)\](.*?)\[\/share\]/ism","bb_ShareAttributesSimple",$Text);
 552
 553         $Text = preg_replace("/\[crypt\](.*?)\[\/crypt\]/ism",'<br/><img src="' .$a->get_baseurl() . '/images/lock_icon.gif" alt="' . t('Encrypted content') . '" title="' . t('Encrypted content') . '" /><br />', $Text);
 554         $Text = preg_replace("/\[crypt=(.*?)\](.*?)\[\/crypt\]/ism",'<br/><img src="' .$a->get_baseurl() . '/images/lock_icon.gif" alt="' . t('Encrypted content') . '" title="' . '$1' . ' ' . t('Encrypted content') . '" /><br />', $Text);
 555
 556
 557         // Try to Oembed
 558         if ($tryoembed) {
 559                 $Text = preg_replace("/\[video\](.*?\.(ogg|ogv|oga|ogm|webm|mp4))\[\/video\]/ism", '<video src="$1" controls="controls" width="' . $a->videowidth . '" height="' . $a->videoheight . '"><a href="$1">$1</a></video>', $Text);
 560                 $Text = preg_replace("/\[audio\](.*?\.(ogg|ogv|oga|ogm|webm|mp4|mp3))\[\/audio\]/ism", '<audio src="$1" controls="controls"><a href="$1">$1</a></audio>', $Text);
 561
 562                 $Text = preg_replace_callback("/\[video\](.*?)\[\/video\]/ism", 'tryoembed', $Text);
 563                 $Text = preg_replace_callback("/\[audio\](.*?)\[\/audio\]/ism", 'tryoembed', $Text);
 564         } else {
 565                 $Text = preg_replace("/\[video\](.*?)\[\/video\]/", '$1', $Text);
 566                 $Text = preg_replace("/\[audio\](.*?)\[\/audio\]/", '$1', $Text);
 567         }
 568
 569         // html5 video and audio
 570
 571
 572         if ($tryoembed)
 573                 $Text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '<iframe src="$1" width="' . $a->videowidth . '" height="' . $a->videoheight . '"><a href="$1">$1</a></iframe>', $Text);
 574         else
 575                 $Text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '<a href="$1">$1</a>', $Text);
 576
 577         // Youtube extensions
 578         if ($tryoembed) {
 579                 $Text = preg_replace_callback("/\[youtube\](https?:\/\/www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", 'tryoembed', $Text);
 580                 $Text = preg_replace_callback("/\[youtube\](www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", 'tryoembed', $Text);
 581                 $Text = preg_replace_callback("/\[youtube\](https?:\/\/youtu.be\/.*?)\[\/youtube\]/ism",'tryoembed',$Text);
 582         }
 583
 584         $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/watch\?v\=(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
 585         $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/embed\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
 586         $Text = preg_replace("/\[youtube\]https?:\/\/youtu.be\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
 587
 588         if ($tryoembed)
 589                 $Text = preg_replace("/\[youtube\]([A-Za-z0-9\-_=]+)(.*?)\[\/youtube\]/ism", '<iframe width="' . $a->videowidth . '" height="' . $a->videoheight . '" src="http://www.youtube.com/embed/$1" frameborder="0" ></iframe>', $Text);
 590         else
 591                 $Text = preg_replace("/\[youtube\]([A-Za-z0-9\-_=]+)(.*?)\[\/youtube\]/ism", "http://www.youtube.com/watch?v=$1", $Text);
 592
 593
 594         if ($tryoembed) {
 595                 $Text = preg_replace_callback("/\[vimeo\](https?:\/\/player.vimeo.com\/video\/[0-9]+).*?\[\/vimeo\]/ism",'tryoembed',$Text);
 596                 $Text = preg_replace_callback("/\[vimeo\](https?:\/\/vimeo.com\/[0-9]+).*?\[\/vimeo\]/ism",'tryoembed',$Text);
 597         }
 598
 599         $Text = preg_replace("/\[vimeo\]https?:\/\/player.vimeo.com\/video\/([0-9]+)(.*?)\[\/vimeo\]/ism",'[vimeo]$1[/vimeo]',$Text);
 600         $Text = preg_replace("/\[vimeo\]https?:\/\/vimeo.com\/([0-9]+)(.*?)\[\/vimeo\]/ism",'[vimeo]$1[/vimeo]',$Text);
 601
 602         if ($tryoembed)
 603                 $Text = preg_replace("/\[vimeo\]([0-9]+)(.*?)\[\/vimeo\]/ism", '<iframe width="' . $a->videowidth . '" height="' . $a->videoheight . '" src="http://player.vimeo.com/video/$1" frameborder="0" ></iframe>', $Text);
 604         else
 605                 $Text = preg_replace("/\[vimeo\]([0-9]+)(.*?)\[\/vimeo\]/ism", "http://vimeo.com/$1", $Text);
 606
 607 //      $Text = preg_replace("/\[youtube\](.*?)\[\/youtube\]/", '<object width="425" height="350" type="application/x-shockwave-flash" data="http://www.youtube.com/v/$1" ><param name="movie" value="http://www.youtube.com/v/$1"></param><!--[if IE]><embed src="http://www.youtube.com/v/$1" type="application/x-shockwave-flash" width="425" height="350" /><![endif]--></object>', $Text);
 608
 609
 610         // oembed tag
 611         $Text = oembed_bbcode2html($Text);
 612
 613         // Avoid triple linefeeds through oembed
 614         $Text = str_replace("<br style='clear:left'></span><br /><br />", "<br style='clear:left'></span><br />", $Text);
 615
 616         // If we found an event earlier, strip out all the event code and replace with a reformatted version.
 617         // Replace the event-start section with the entire formatted event. The other bbcode is stripped.
 618         // Summary (e.g. title) is required, earlier revisions only required description (in addition to
 619         // start which is always required). Allow desc with a missing summary for compatibility.
 620
 621         if((x($ev,'desc') || x($ev,'summary')) && x($ev,'start')) {
 622                 $sub = format_event_html($ev);
 623
 624                 $Text = preg_replace("/\[event\-summary\](.*?)\[\/event\-summary\]/ism",'',$Text);
 625                 $Text = preg_replace("/\[event\-description\](.*?)\[\/event\-description\]/ism",'',$Text);
 626                 $Text = preg_replace("/\[event\-start\](.*?)\[\/event\-start\]/ism",$sub,$Text);
 627                 $Text = preg_replace("/\[event\-finish\](.*?)\[\/event\-finish\]/ism",'',$Text);
 628                 $Text = preg_replace("/\[event\-location\](.*?)\[\/event\-location\]/ism",'',$Text);
 629                 $Text = preg_replace("/\[event\-adjust\](.*?)\[\/event\-adjust\]/ism",'',$Text);
 630         }
 631
 632         // Unhide all [noparse] contained bbtags unspacefying them
 633         // and triming the [noparse] tag.
 634
 635         $Text = preg_replace_callback("/\[noparse\](.*?)\[\/noparse\]/ism", 'bb_unspacefy_and_trim',$Text);
 636         $Text = preg_replace_callback("/\[nobb\](.*?)\[\/nobb\]/ism", 'bb_unspacefy_and_trim',$Text);
 637         $Text = preg_replace_callback("/\[pre\](.*?)\[\/pre\]/ism", 'bb_unspacefy_and_trim',$Text);
 638
 639
 640         $Text = preg_replace('/\[\&amp\;([#a-z0-9]+)\;\]/','&$1;',$Text);
 641         $Text = preg_replace('/\&\#039\;/','\'',$Text);
 642         $Text = preg_replace('/\&quot\;/','"',$Text);
 643
 644         // fix any escaped ampersands that may have been converted into links
 645         $Text = preg_replace("/\<([^>]*?)(src|href)=(.*?)\&amp\;(.*?)\>/ism",'<$1$2=$3&$4>',$Text);
 646         $Text = preg_replace("/\<([^>]*?)(src|href)=\"[^hfm](.*?)\>/ism",'<$1$2="">',$Text);
 647
 648         if($saved_image)
 649                 $Text = bb_replace_images($Text, $saved_image);
 650
 651         // Clean up the HTML by loading and saving the HTML with the DOM
 652         // Only do it when it has to be done - for performance reasons
 653         // Update: Now it is done every time - since bad structured html can break a whole page
 654         //if (!$tryoembed) {
 655 //              $doc = new DOMDocument();
 656 //              $doc->preserveWhiteSpace = false;
 657
 658 //              $Text = mb_convert_encoding($Text, 'HTML-ENTITIES', "UTF-8");
 659
 660 //              $doctype = '<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">';
 661 //              @$doc->loadHTML($doctype."<html><body>".$Text."</body></html>");
 662
 663 //              $Text = $doc->saveHTML();
 664 //              $Text = str_replace(array("<html><body>", "</body></html>", $doctype), array("", "", ""), $Text);
 665
 666 //              $Text = str_replace('<br></li>','</li>', $Text);
 667
 668 //              $Text = mb_convert_encoding($Text, "UTF-8", 'HTML-ENTITIES');
 669         //}
 670
 671         call_hooks('bbcode',$Text);
 672
 673         $a->save_timestamp($stamp1, "parser");
 674
 675         return $Text;
 676 }
 677