Captioning\Format\TtmlFile::parse PHP Method

    public function parse()
    {
        $xml = simplexml_load_string($this->fileContent);
        // parsing headers
        $this->setTimeBase((string) $xml->attributes('ttp', true)->timeBase);
        $this->setTickRate((string) $xml->attributes('ttp', true)->tickRate);
        $head = $xml->head;
        // parsing styles
        foreach ($head->styling->style as $style) {
            $styleData = $this->parseAttributes($style);
            $this->styles[$styleData['id']] = $styleData;
        }
        // parsing regions
        $regions = $head->layout->region;
        foreach ($regions as $region) {
            $regionData = $this->parseAttributes($region);
            $this->regions[$regionData['id']] = $regionData;
            if ($region->style) {
                $regionAttr = array();
                foreach ($region->style as $regionStyle) {
                    $regionAttr = array_merge($regionAttr, $this->parseAttributes($regionStyle));
                }
                $this->regions[$regionData['id']] = array_merge($this->regions[$regionData['id']], $regionAttr);
            }
        }
        // parsing cues
        $this->parseCues($xml->body);
        return $this;
    }