/**
* Converts a given string to our xml friendly text.
* This step involves purifying the string
*
* @param String $string Input string to reformat
* @return String Reformatted string (optional HTML -> Markdown, UTF-8)
*/
public function xml_ready($string, $convert_to_markdown = true)
{
static $purifier = null;
static $fixer = null;
static $markdown = null;
if ($purifier === null) {
$purifier_config = HTMLPurifier_Config::createDefault();
$purifier_config->set('Cache.SerializerPath', realpath($GLOBALS['TMP_PATH']));
$purifier = new HTMLPurifier($purifier_config);
$markdown = new HTML_To_Markdown();
$markdown->set_option('strip_tags', true);
}
$string = studip_utf8encode($string);
$string = $purifier->purify($string);
if ($convert_to_markdown) {
$string = $markdown->convert($string);
$string = preg_replace('/\\[\\]\\((\\w+:\\/\\/.*?)\\)/', '', $string);
$string = preg_replace('/\\[(\\w+:\\/\\/.*?)\\/?\\]\\(\\1\\/?\\s+"(.*?)"\\)/isxm', '$2: $1', $string);
$string = preg_replace('/\\[(\\w+:\\/\\/.*?)\\/?\\]\\(\\1\\/?\\)/isxm', '$1', $string);
$string = preg_replace('/\\[(.*?)\\]\\((\\w+:\\/\\/.*?)\\)/', '$1: $2', $string);
}
$string = preg_replace('/[\\x00-\\x08\\x0b\\x0c\\x0e-\\x1f]/', '', $string);
$string = trim($string);
$string = htmlspecialchars($string, ENT_QUOTES, 'UTF-8');
return $string;
}
/**
* In addition to markdown conversion, strips images and treats h3-6 as paragraphs.
* @param string $html
* @return string empty if conversion fails
*/
public static function convert($html)
{
$converter = new HTML_To_Markdown();
$html = preg_replace('/<img[^>]*>/', '', $html);
$html = preg_replace('/<(\\/)?h[3-6]>/', '<$1p>', $html);
$converter->set_option('header_style', 'postmatic');
$converter->set_option('strip_tags', true);
$markdown = $converter->convert($html);
return $markdown ? $markdown : '';
}
/**
* Create the Calendar Event
*
* @param $title
* @param $startDate
* @param null $description
* @param int $duration
* @param null $location
*/
public function __construct($title, $startDate, $description = null, $duration = 60, $location = null)
{
if ($description) {
$markdown = new HTML_To_Markdown();
$markdown->set_option('strip_tags', true);
$noImageText = preg_replace(array("/<img[^>]+\\>/i", "/<hr[^>]+\\>/i"), "", $description);
$markdown->convert($noImageText);
$this->description = $markdown;
}
if (is_numeric($startDate)) {
$startTimestamp = new DateTime();
$startTimestamp->setTimestamp($startDate);
} else {
$startTimestamp = new DateTime($startDate);
}
$startTimestamp->setTimezone(new DateTimeZone('UTC'));
$this->startDate = $startTimestamp->format('Ymd\\THis\\Z');
$this->duration = $duration;
$this->endDate = $startTimestamp->modify('+' . $duration . ' minutes')->format('Ymd\\THis\\Z');
$this->location = $location;
$this->title = strip_tags($title);
}
public function test_set_option()
{
$markdown = new HTML_To_Markdown();
$markdown->set_option('strip_tags', true);
$markdown->convert('<span>Strip</span>');
$this->assertEquals('Strip', $markdown->__toString());
}
public static function text($html = null, $overrides = null)
{
$md = new \HTML_To_Markdown($overrides);
return $md->convert($html);
}
/**
* Convert HTML to markdown
*
* @since 1.0.0
*
* @param string $html
* @return string
*/
protected function convertToMarkdown($html)
{
$converter = new HTML_To_Markdown();
$converter->set_option('strip_tags', false);
$converter->set_option('header_style', $this->headingStyle);
return $converter->convert($html);
}
