friendica/include/bbcode.php

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<?php
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require_once("include/oembed.php");
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require_once('include/event.php');
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function stripcode_br_cb($s) {
return '[code]' . str_replace('<br />', '', $s[1]) . '[/code]';
}
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// BBcode 2 HTML was written by WAY2WEB.net
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// extended to work with Mistpark/Friendika - Mike Macgirvin
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function bbcode($Text,$preserve_nl = false) {
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// If we find any event code, turn it into an event.
// After we're finished processing the bbcode we'll
// replace all of the event code with a reformatted version.
$ev = bbtoevent($Text);
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// Replace any html brackets with HTML Entities to prevent executing HTML or script
// Don't use strip_tags here because it breaks [url] search by replacing & with amp
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$Text = str_replace("<", "&lt;", $Text);
$Text = str_replace(">", "&gt;", $Text);
// Convert new line chars to html <br /> tags
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$Text = nl2br($Text);
if($preserve_nl)
$Text = str_replace(array("\n","\r"), array('',''),$Text);
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// Set up the parameters for a URL search string
$URLSearchString = "^\[\]";
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// Set up the parameters for a MAIL search string
$MAILSearchString = $URLSearchString;
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// Perform URL Search
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$Text = preg_replace("/([^\]\=]|^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\.\=\_\~\#\%\$\!\+\,]+)/", '$1<a href="$2" target="external-link">$2</a>', $Text);
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$Text = preg_replace("/\[url\]([$URLSearchString]*)\[\/url\]/m", '<a href="$1" target="external-link">$1</a>', $Text);
$Text = preg_replace("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/m", '<a href="$1" target="external-link">$2</a>', $Text);
//$Text = preg_replace("/\[url\=([$URLSearchString]*)\]([$URLSearchString]*)\[\/url\]/m", '<a href="$1" target="_blank">$2</a>', $Text);
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// Perform MAIL Search
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$Text = preg_replace("/\[mail\]([$MAILSearchString]*)\[\/mail\]/", '<a href="mailto:$1">$1</a>', $Text);
$Text = preg_replace("/\[mail\=([$MAILSearchString]*)\](.*?)\[\/mail\]/", '<a href="mailto:$1">$2</a>', $Text);
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// Check for bold text
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$Text = preg_replace("(\[b\](.*?)\[\/b\])ism",'<strong>$1</strong>',$Text);
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// Check for Italics text
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$Text = preg_replace("(\[i\](.*?)\[\/i\])ism",'<em>$1</em>',$Text);
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// Check for Underline text
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$Text = preg_replace("(\[u\](.*?)\[\/u\])ism",'<u>$1</u>',$Text);
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// Check for strike-through text
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$Text = preg_replace("(\[s\](.*?)\[\/s\])ism",'<strike>$1</strike>',$Text);
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// Check for over-line text
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$Text = preg_replace("(\[o\](.*?)\[\/o\])ism",'<span class="overline">$1</span>',$Text);
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// Check for colored text
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$Text = preg_replace("(\[color=(.*?)\](.*?)\[\/color\])ism","<span style=\"color: $1;\">$2</span>",$Text);
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// Check for sized text
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$Text = preg_replace("(\[size=(.*?)\](.*?)\[\/size\])ism","<span style=\"font-size: $1;\">$2</span>",$Text);
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// Check for list text
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$Text = preg_replace("/\[list\](.*?)\[\/list\]/ism", '<ul class="listbullet">$1</ul>' ,$Text);
$Text = preg_replace("/\[list=1\](.*?)\[\/list\]/ism", '<ul class="listdecimal">$1</ul>' ,$Text);
$Text = preg_replace("/\[list=i\](.*?)\[\/list\]/sm",'<ul class="listlowerroman">$1</ul>' ,$Text);
$Text = preg_replace("/\[list=I\](.*?)\[\/list\]/sm", '<ul class="listupperroman">$1</ul>' ,$Text);
$Text = preg_replace("/\[list=a\](.*?)\[\/list\]/sm", '<ul class="listloweralpha">$1</ul>' ,$Text);
$Text = preg_replace("/\[list=A\](.*?)\[\/list\]/sm", '<ul class="listupperalpha">$1</ul>' ,$Text);
$Text = preg_replace("/\[li\](.*?)\[\/li\]/sm", '<li>$1</li>' ,$Text);
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$Text = preg_replace("/\[td\](.*?)\[\/td\]/sm", '<td>$1</td>' ,$Text);
$Text = preg_replace("/\[tr\](.*?)\[\/tr\]/sm", '<tr>$1</tr>' ,$Text);
$Text = preg_replace("/\[table\](.*?)\[\/table\]/sm", '<table>$1</table>' ,$Text);
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$Text = preg_replace("/\[table border=1\](.*?)\[\/table\]/sm", '<table border="1" >$1</table>' ,$Text);
$Text = preg_replace("/\[table border=0\](.*?)\[\/table\]/sm", '<table border="0" >$1</table>' ,$Text);
// $Text = str_replace("[*]", "<li>", $Text);
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// Check for font change text
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$Text = preg_replace("/\[font=(.*?)\](.*?)\[\/font\]/m","<span style=\"font-family: $1;\">$2</span>",$Text);
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// Declare the format for [code] layout
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$Text = preg_replace_callback("/\[code\](.*?)\[\/code\]/ism",'stripcode_br_cb',$Text);
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$CodeLayout = '<code>$1</code>';
// Check for [code] text
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$Text = preg_replace("/\[code\](.*?)\[\/code\]/ism","$CodeLayout", $Text);
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// Declare the format for [quote] layout
$QuoteLayout = '<blockquote>$1</blockquote>';
// Check for [quote] text
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$Text = preg_replace("/\[quote\](.*?)\[\/quote\]/ism","$QuoteLayout", $Text);
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// Images
// [img]pathtoimage[/img]
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$Text = preg_replace("/\[img\](.*?)\[\/img\]/ism", '<img src="$1" alt="' . t('Image/photo') . '" />', $Text);
// html5 video and audio
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$Text = preg_replace("/\[video\](.*?)\[\/video\]/ism", '<video src="$1" controls="controls" width="425" height="350"><a href="$1">$1</a></video>', $Text);
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$Text = preg_replace("/\[audio\](.*?)\[\/audio\]/ism", '<audio src="$1" controls="controls"><a href="$1">$1</a></audio>', $Text);
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$Text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '<iframe src="$1" width="425" height="350"><a href="$1">$1</a></iframe>', $Text);
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// [img=widthxheight]image source[/img]
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$Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '<img src="$3" style="height:{$2}px; width:{$1}px;" >', $Text);
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if (get_pconfig(local_user(), 'oembed', 'use_for_youtube' )==1){
// use oembed for youtube links
$Text = preg_replace("/\[youtube\]/",'[embed]',$Text);
$Text = preg_replace("/\[\/youtube\]/",'[/embed]',$Text);
} else {
// Youtube extensions
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$Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/watch\?v\=(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
$Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/embed\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
$Text = preg_replace("/\[youtube\]https?:\/\/youtu.be\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
$Text = preg_replace("/\[youtube\]([A-Za-z0-9\-_=]+)(.*?)\[\/youtube\]/ism", '<iframe width="425" height="350" src="http://www.youtube.com/embed/$1" frameborder="0" ></iframe>', $Text);
}
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// $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);
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// oembed tag
$Text = oembed_bbcode2html($Text);
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// If we found an event earlier, strip out all the event code and replace with a reformatted version.
if(x($ev,'desc') && x($ev,'start')) {
$sub = format_event_html($ev);
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$Text = preg_replace("/\[event\-description\](.*?)\[\/event\-description\]/ism",$sub,$Text);
$Text = preg_replace("/\[event\-start\](.*?)\[\/event\-start\]/ism",'',$Text);
$Text = preg_replace("/\[event\-finish\](.*?)\[\/event\-finish\]/ism",'',$Text);
$Text = preg_replace("/\[event\-location\](.*?)\[\/event\-location\]/ism",'',$Text);
$Text = preg_replace("/\[event\-adjust\](.*?)\[\/event\-adjust\]/ism",'',$Text);
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}
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call_hooks('bbcode',$Text);
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return $Text;
}