public function convert(ElementInterface $element)
{
$markdown = '';
$pre_content = html_entity_decode($element->getChildrenAsString());
$pre_content = str_replace(array('<pre>', '</pre>'), '', $pre_content);
/*
* Checking for the code tag.
* Usually pre tags are used along with code tags. This conditional will check for already converted code tags,
* which use backticks, and if those backticks are at the beginning and at the end of the string it means
* there's no more information to convert.
*/
$firstBacktick = strpos(trim($pre_content), '`');
$lastBacktick = strrpos(trim($pre_content), '`');
if ($firstBacktick === 0 && $lastBacktick === strlen(trim($pre_content)) - 1) {
return $pre_content;
}
// If the execution reaches this point it means it's just a pre tag, with no code tag nested
// Normalizing new lines
$pre_content = preg_replace('/\\r\\n|\\r|\\n/', PHP_EOL, $pre_content);
// Checking if the string has multiple lines
$lines = preg_split('/\\r\\n|\\r|\\n/', $pre_content);
if (count($lines) > 1) {
// Multiple lines detected, adding three backticks and newlines
$markdown .= '```' . "\n" . $pre_content . "\n" . '```';
} else {
// One line of code, wrapping it on one backtick.
$markdown .= '`' . $pre_content . '`';
}
return $markdown;
}
