public static function parse($chapters_string)
{
// remove UTF8 BOM if it exists
$chapters_string = str_replace("", "", $chapters_string);
if (!is_string($chapters_string)) {
return NULL;
}
if (!($chapters_string = trim($chapters_string))) {
return NULL;
}
if (!($xml = self::get_simplexml($chapters_string))) {
return NULL;
}
$xml->registerXPathNamespace('psc', 'http://podlove.org/simple-chapters');
if (!($chapters_xpath = $xml->xpath("//psc:chapter"))) {
return NULL;
}
$chapters = new Chapters();
foreach ($chapters_xpath as $chapter) {
$simplexml_attributes = (array) $chapter->attributes();
$attributes = $simplexml_attributes['@attributes'];
$chapters->addChapter(new Chapter(NormalPlayTime\Parser::parse($attributes['start']), isset($attributes['title']) ? $attributes['title'] : '', isset($attributes['href']) ? $attributes['href'] : '', isset($attributes['image']) ? $attributes['image'] : ''));
}
return $chapters;
}
public function testMsStringParser()
{
$examples = array(" 1" => 100, "12" => 120, "123" => 123, "1234" => 123);
foreach ($examples as $ms_string => $expected_ms) {
$this->assertEquals($expected_ms, Parser::parse_ms_string($ms_string));
}
}
public static function parse($chapters_string)
{
// remove UTF8 BOM if it exists
$chapters_string = str_replace("", "", $chapters_string);
$chapters_string = trim($chapters_string);
if (!strlen($chapters_string)) {
return NULL;
}
$chapters = new Chapters();
$invalid_lines = 0;
foreach (preg_split("/((\r?\n)|(\r\n?))/", $chapters_string) as $line) {
$valid = preg_match('/^([\\d.:]+)(.*)$/', trim($line), $matches);
if (!$valid) {
$invalid_lines++;
continue;
}
$time_string = $matches[1];
$title = $matches[2];
$timestamp_milliseconds = NormalPlayTime\Parser::parse($time_string);
if ($timestamp_milliseconds === false) {
continue;
}
$link = '';
$title = preg_replace_callback('/\\s?<[^>]+>\\s?/', function ($matches) use(&$link) {
$link = trim($matches[0], ' < >');
return ' ';
}, $title);
$chapters->addChapter(new Chapter($timestamp_milliseconds, trim($title), $link));
}
return $invalid_lines <= count($chapters) ? $chapters : NULL;
}
/**
* Extract time segments from duration string.
*
* - verifies validity
* - extracts hours, minutes, seconds, milliseconds
*/
private function normalize()
{
if ($milliseconds = \Podlove\NormalPlayTime\Parser::parse($this->duration, 'ms')) {
$this->hours = floor($milliseconds / 1000 / 60 / 60);
$this->minutes = floor($milliseconds / 1000 / 60) % 60;
$this->seconds = floor($milliseconds / 1000) % 60;
$this->milliseconds = $milliseconds % 1000;
} else {
$this->valid = false;
}
}
public static function parse($chapters_string)
{
// remove UTF8 BOM if it exists
$chapters_string = str_replace("", "", $chapters_string);
$chapters = new Chapters();
$json = json_decode(trim($chapters_string));
if (!$json) {
return $chapters;
}
foreach ($json as $chapter) {
$chapters->addChapter(new Chapter(NormalPlayTime\Parser::parse($chapter->start), $chapter->title, $chapter->href, $chapter->image));
}
return $chapters;
}
/**
* The total duration in milliseconds
*
* 0,1,2,…
*
* @accessor
*/
public function totalMilliseconds()
{
return \Podlove\NormalPlayTime\Parser::parse($this->duration, 'ms');
}
public static function duration_to_seconds($timestring)
{
return \Podlove\NormalPlayTime\Parser::parse($timestring, 's');
}