$s , 'zrl' => $use_zrl, 'options' => $options ];
call_hooks('markdown_to_bb_init',$x);
$s = $x['text'];
// Escaping the hash tags
$s = preg_replace('/\#([^\s\#])/','#$1',$s);
$s = MarkdownExtra::defaultTransform($s);
if($options && $options['preserve_lf']) {
$s = str_replace(["\r","\n"],["",'
'],$s);
}
else {
$s = str_replace("\r","",$s);
}
$s = str_replace('#','#',$s);
$s = html2bbcode($s);
// Convert everything that looks like a link to a link
if($use_zrl) {
$s = str_replace(array('[img','/img]'),array('[zmg','/zmg]'),$s);
$s = preg_replace("/([^\]\=]|^)(https?\:\/\/)([a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,\@\(\)]+)/ism", '$1[zrl=$2$3]$2$3[/zrl]',$s);
}
else {
$s = preg_replace("/([^\]\=]|^)(https?\:\/\/)([a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,\@\(\)]+)/ism", '$1[url=$2$3]$2$3[/url]',$s);
}
// remove duplicate adjacent code tags
$s = preg_replace("/(\[code\])+(.*?)(\[\/code\])+/ism","[code]$2[/code]", $s);
// Don't show link to full picture (until it is fixed)
$s = scale_external_images($s, false);
call_hooks('markdown_to_bb',$s);
return $s;
}
function bb_to_markdown_share($match) {
$matches = array();
$attributes = $match[1];
$author = "";
preg_match("/author='(.*?)'/ism", $attributes, $matches);
if ($matches[1] != "")
$author = urldecode($matches[1]);
$link = "";
preg_match("/link='(.*?)'/ism", $attributes, $matches);
if ($matches[1] != "")
$link = $matches[1];
$avatar = "";
preg_match("/avatar='(.*?)'/ism", $attributes, $matches);
if ($matches[1] != "")
$avatar = $matches[1];
$profile = "";
preg_match("/profile='(.*?)'/ism", $attributes, $matches);
if ($matches[1] != "")
$profile = $matches[1];
$posted = "";
preg_match("/posted='(.*?)'/ism", $attributes, $matches);
if ($matches[1] != "")
$posted = $matches[1];
// message_id is never used, do we still need it?
$message_id = "";
preg_match("/message_id='(.*?)'/ism", $attributes, $matches);
if ($matches[1] != "")
$message_id = $matches[1];
if(! $message_id) {
preg_match("/guid='(.*?)'/ism", $attributes, $matches);
if ($matches[1] != "")
$message_id = $matches[1];
}
$reldate = datetime_convert('UTC', date_default_timezone_get(), $posted, 'r');
$headline = '';
if ($avatar != "")
$headline .= '[url=' . zid($profile) . '][img]' . $avatar . '[/img][/url]';
// Bob Smith wrote the following post 2 hours ago
$fmt = sprintf( t('%1$s wrote the following %2$s %3$s'),
'[url=' . zid($profile) . ']' . $author . '[/url]',
'[url=' . zid($link) . ']' . t('post') . '[/url]',
$reldate
);
$headline .= $fmt . "\n\n";
$text = $headline . trim($match[2]);
return $text;
}
function bb_to_markdown($Text, $options = []) {
/*
* Transform #tags, strip off the [url] and replace spaces with underscore
*/
$Text = preg_replace_callback('/#\[([zu])rl\=(.*?)\](.*?)\[\/[(zu)]rl\]/i',
create_function('$match', 'return \'#\'. str_replace(\' \', \'_\', $match[3]);'), $Text);
$Text = preg_replace('/#\^\[([zu])rl\=(.*?)\](.*?)\[\/([zu])rl\]/i', '[$1rl=$2]$3[/$4rl]', $Text);
// Converting images with size parameters to simple images. Markdown doesn't know it.
$Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '[img]$3[/img]', $Text);
$Text = preg_replace_callback("/\[share(.*?)\](.*?)\[\/share\]/ism", 'bb_to_markdown_share', $Text);
$x = [ 'bbcode' => $Text, 'options' => $options ];
call_hooks('bb_to_markdown_bb',$x);
$Text = $x['bbcode'];
// Convert it to HTML - don't try oembed
$Text = bbcode($Text, $preserve_nl, false);
// Markdownify does not preserve previously escaped html entities such as <> and &.
$Text = str_replace(array('<','>','&'),array('&_lt_;','&_gt_;','&_amp_;'),$Text);
// Now convert HTML to Markdown
$Text = html2markdown($Text);
// It also adds backslashes to our attempt at getting around the html entity preservation for some weird reason.
$Text = str_replace(array('&\\_lt\\_;','&\\_gt\\_;','&\\_amp\\_;'),array('<','>','&'),$Text);
// If the text going into bbcode() has a plain URL in it, i.e.
// with no [url] tags around it, it will come out of parseString()
// looking like: , which gets removed by strip_tags().
// So take off the angle brackets of any such URL
$Text = preg_replace("//is", "http$1", $Text);
// Remove empty zrl links
$Text = preg_replace("/\[zrl\=\].*?\[\/zrl\]/is", "", $Text);
$Text = trim($Text);
call_hooks('bb_to_markdown', $Text);
return $Text;
}
/**
* @brief Convert a HTML text into Markdown.
*
* This function uses the library league/html-to-markdown for this task.
*
* If the HTML text can not get parsed it will return an empty string.
*
* @see HTMLToMarkdown
*
* @param string $html The HTML code to convert
* @return string Markdown representation of the given HTML text, empty on error
*/
function html2markdown($html) {
$markdown = '';
$converter = new HtmlConverter();
try {
$markdown = $converter->convert($html);
} catch (InvalidArgumentException $e) {
logger("Invalid HTML. HTMLToMarkdown library threw an exception.");
}
// The old html 2 markdown library "pixel418/markdownify": "^2.2",
//$md = new HtmlConverter();
//$markdown = $md->convert($Text);
return $markdown;
}