/**
* @{inheritdoc}
*/
public function parse(Formula $formula)
{
$this->tokenCollector->addParameterBag($formula->getParameterBag());
foreach ($formula->getSubFormulas() as $key => $subformula) {
$this->tokenCollector->set($key, $subformula->formula);
$this->parse($subformula);
}
}
/**
* @param Formula $formula
*
* @return array
*/
public function getReplacements(Formula $formula)
{
$result = array();
$start = $this->getOption('separator_start');
$end = $this->getOption('separator_end');
if (preg_match_all('/' . $start . '(.+?)' . $end . '/is', $this->prepare($formula->formula), $matches)) {
$result = array_merge($result, $matches[1]);
}
foreach ($formula->getSubFormulas() as $key => $subformula) {
$result = array_merge($result, $this->getReplacements($subformula));
unset($result[array_search($key, $result)]);
}
return array_unique($result);
}
