protected function parseTemplate($template)
	{
		$this->references = [
			'anywhere' => [],
			'asUrl'    => [],
			'inText'   => []
		];

		preg_match_all($this->referencesRegexp, $template, $matches);
		foreach ($matches[0] as $match)
		{
			$key = trim($match, '\\${}');
			$this->references['anywhere'][$key] = $key;
		}

		$dom   = TemplateLoader::load($template);
		$xpath = new DOMXPath($dom);
		foreach ($xpath->query('//text()') as $node)
		{
			preg_match_all($this->referencesRegexp, $node->textContent, $matches);
			foreach ($matches[0] as $match)
			{
				$key = trim($match, '\\${}');
				$this->references['inText'][$key] = $key;
			}
		}

		foreach (NodeLocator::getURLNodes($dom) as $node)
		{
			// We only bother with literal attributes that start with a capture
			if ($node instanceof DOMAttr
			 && preg_match('(^(?:[$\\\\]\\d+|\\$\\{\\d+\\}))', trim($node->value), $m))
			{
				$key = trim($m[0], '\\${}');
				$this->references['asUrl'][$key] = $key;
			}
		}

		$this->removeUnknownReferences();
	}