@Nullable
private static RegExpLanguageHost findRegExpHost(@Nullable final PsiElement element) {
if (element == null) {
return null;
}
PsiLanguageInjectionHost host =
InjectedLanguageManager.getInstance(element.getProject()).getInjectionHost(element);
if (host instanceof RegExpLanguageHost) {
return (RegExpLanguageHost) host;
}
if (host != null) {
return INSTANCE.forClass(host.getClass());
}
return null;
}
