private void Identifier(int currentLevel)
{
if (Identifiers.ContainsValue(LexemString[currentLexem].code))
{
Tree.Add(new Node(LexemString[currentLexem].value, currentLevel, LexemString[currentLexem++]));
}
else
{
RiseErrorOrAddNodeToTree(currentLevel, "IDENTIFIER");
}
Tree = Tree.Parent;
}