$s,
'zrl' => $use_zrl,
'options' => $options
];
/**
* @hooks markdown_to_bb_init
* * \e string \b text - The message as Markdown and what will get returned
* * \e boolean \b zrl
* * \e array \b options
*/
Hook::call('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 ($use_zrl) {
if (strpos($s, '[/img]') !== false) {
$s = preg_replace_callback("/\[img\](.*?)\[\/img\]/ism", ['\\Code\\Lib\\Markdown', 'use_zrl_cb_img'], $s);
$s = preg_replace_callback("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", ['\\Code\\Lib\\Markdown', 'use_zrl_cb_img_x'], $s);
}
$s = preg_replace_callback("/([^\]\=\{\/]|^)(https?\:\/\/)([a-zA-Z0-9\pL\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,\@\(\)]+)/ismu", ['\\Code\\Lib\\Markdown', 'use_zrl_cb_link'], $s);
} else {
$s = preg_replace("/([^\]\=\{\/]|^)(https?\:\/\/)([a-zA-Z0-9\pL\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,\@\(\)]+)/ismu", '$1[url=$2$3]$2$3[/url]', $s);
}
// remove duplicate adjacent code tags
$s = preg_replace("/(\[code\])+(.*?)(\[\/code\])+/ism", "[code]$2[/code]", $s);
/**
* @hooks markdown_to_bb
* * \e string - The already converted message as bbcode
*/
Hook::call('markdown_to_bb', $s);
return $s;
}
public static function use_zrl_cb_link($match)
{
$res = '';
$is_zid = is_matrix_url(trim($match[0]));
if ($is_zid) {
$res = $match[1] . '[zrl=' . $match[2] . $match[3] . ']' . $match[2] . $match[3] . '[/zrl]';
} else {
$res = $match[1] . '[url=' . $match[2] . $match[3] . ']' . $match[2] . $match[3] . '[/url]';
}
return $res;
}
public static function use_zrl_cb_img($match)
{
$res = '';
$is_zid = is_matrix_url(trim($match[1]));
if ($is_zid) {
$res = '[zmg]' . $match[1] . '[/zmg]';
} else {
$res = $match[0];
}
return $res;
}
public static function use_zrl_cb_img_x($match)
{
$res = '';
$is_zid = is_matrix_url(trim($match[3]));
if ($is_zid) {
$res = '[zmg=' . $match[1] . 'x' . $match[2] . ']' . $match[3] . '[/zmg]';
} else {
$res = $match[0];
}
return $res;
}
/**
* @brief
*
* @param array $match
* @return string
*/
public static function from_bbcode_share($match)
{
$matches = [];
$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;
}
/**
* @brief Convert bbcode to Markdown.
*
* @param string $Text The message as bbcode
* @param array $options default empty
* @return string The message converted to Markdown
*/
public static function from_bbcode($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", ['\\Code\\Lib\\Markdown', 'from_bbcode_share'], $Text);
$x = ['bbcode' => $Text, 'options' => $options];
/**
* @hooks bb_to_markdown_bb
* * \e string \b bbcode - The message as bbcode and what will get returned
* * \e array \b options
*/
Hook::call('bb_to_markdown_bb', $x);
$Text = $x['bbcode'];
// Convert it to HTML - don't try oembed
$Text = bbcode($Text, ['tryoembed' => false]);
// Now convert HTML to Markdown
$Text = self::from_html($Text);
//html2markdown adds backslashes infront of hashes after a new line. remove them
$Text = str_replace("\n\#", "\n#", $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);
/**
* @hooks bb_to_markdown
* * \e string - The already converted message as bbcode and what will get returned
*/
Hook::call('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.
*
* @param string $html The HTML code to convert
* @return string Markdown representation of the given HTML text, empty on error
*/
public static function from_html($html, $options = [])
{
$markdown = '';
if (!$options) {
$options = [
'header_style' => 'setext', // Set to 'atx' to output H1 and H2 headers as # Header1 and ## Header2
'suppress_errors' => true, // Set to false to show warnings when loading malformed HTML
'strip_tags' => false, // Set to true to strip tags that don't have markdown equivalents. N.B. Strips tags, not their content. Useful to clean MS Word HTML output.
'bold_style' => '**', // DEPRECATED: Set to '__' if you prefer the underlined style
'italic_style' => '*', // DEPRECATED: Set to '_' if you prefer the underlined style
'remove_nodes' => '', // space-separated list of dom nodes that should be removed. example: 'meta style script'
'hard_break' => false, // Set to true to turn
into `\n` instead of ` \n`
'list_item_style' => '-', // Set the default character for each in a . Can be '-', '*', or '+'
];
}
$environment = Environment::createDefaultEnvironment($options);
$environment->addConverter(new TableConverter());
$converter = new HtmlConverter($environment);
try {
$markdown = $converter->convert($html);
} catch (InvalidArgumentException $e) {
logger("Invalid HTML. HTMLToMarkdown library threw an exception.");
}
return $markdown;
}
}
// Tables are not an official part of the markdown specification.
// This interface was suggested as a workaround.
// author: Mark Hamstra
// https://github.com/Mark-H/Docs
class TableConverter implements ConverterInterface
{
/**
* @param ElementInterface $element
*
* @return string
*/
public function convert(ElementInterface $element)
{
switch ($element->getTagName()) {
case 'tr':
$line = [];
$i = 1;
foreach ($element->getChildren() as $td) {
$i++;
$v = $td->getValue();
$v = trim($v);
if ($i % 2 === 0 || $v !== '') {
$line[] = $v;
}
}
return '| ' . implode(' | ', $line) . " |\n";
case 'td':
case 'th':
return trim($element->getValue());
case 'tbody':
return trim($element->getValue());
case 'thead':
$headerLine = reset($element->getChildren())->getValue();
$headers = explode(' | ', trim(trim($headerLine, "\n"), '|'));
$hr = [];
foreach ($headers as $td) {
$length = strlen(trim($td)) + 2;
$hr[] = str_repeat('-', $length > 3 ? $length : 3);
}
$hr = '|' . implode('|', $hr) . '|';
return $headerLine . $hr . "\n";
case 'table':
$inner = $element->getValue();
if (strpos($inner, '-----') === false) {
$inner = explode("\n", $inner);
$single = explode(' | ', trim($inner[0], '|'));
$hr = [];
foreach ($single as $td) {
$length = strlen(trim($td)) + 2;
$hr[] = str_repeat('-', $length > 3 ? $length : 3);
}
$hr = '|' . implode('|', $hr) . '|';
array_splice($inner, 1, 0, $hr);
$inner = implode("\n", $inner);
}
return trim($inner) . "\n\n";
}
return $element->getValue();
}
/**
* @return string[]
*/
public function getSupportedTags()
{
return array('table', 'tr', 'thead', 'td', 'tbody');
}
}