private function processSubLanguage()
{
try {
$hl = new Highlighter();
$hl->autodetectSet = $this->autodetectSet;
$explicit = is_string($this->top->subLanguage);
if ($explicit && !isset(array_flip(self::$languages)[$this->top->subLanguage])) {
return $this->escape($this->modeBuffer);
}
if ($explicit) {
$res = $hl->highlight($this->top->subLanguage, $this->modeBuffer, true, isset($this->continuations[$this->top->subLanguage]) ? $this->continuations[$this->top->subLanguage] : null);
} else {
$res = $hl->highlightAuto($this->modeBuffer, count($this->top->subLanguage) ? $this->top->subLanguage : null);
}
// Counting embedded language score towards the host language may
// be disabled with zeroing the containing mode relevance. Usecase
// in point is Markdown that allows XML everywhere and makes every
// XML snippet to have a much larger Markdown score.
if ($this->top->relevance > 0) {
$this->relevance += $res->relevance;
}
if ($explicit) {
$this->continuations[$this->top->subLanguage] = $res->top;
}
return $this->buildSpan($res->language, $res->value, false, true);
} catch (\Exception $e) {
error_log("TODO, is this a relevant catch?");
error_log($e);
return $this->escape($this->modeBuffer);
}
}
