include/bbcode.php

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