private static boolean isLiteral(PsiElement element) {
if (element == null) return false;
final ASTNode astNode = element.getNode();
if (astNode == null) {
return false;
}
final IElementType elementType = astNode.getElementType();
final ParserDefinition parserDefinition =
LanguageParserDefinitions.INSTANCE.forLanguage(element.getLanguage());
if (parserDefinition != null) {
final TokenSet literals = parserDefinition.getStringLiteralElements();
return literals.contains(elementType);
}
return false;
}
@Override
public boolean canBeVarDelimeter(@NotNull PsiElement element) {
final ASTNode node = element.getNode();
return node != null && getVariableDelimiters().contains(node.getElementType());
}