AIMA.Core.Logic.FOL.Parsing.FOLParser.parseTerm C# (CSharp) Method

        private Term parseTerm()
        {
            Token t = lookAhead(1);
            int tokenType = t.getType();
            if (tokenType == (int)LogicTokenTypes.CONSTANT)
            {
                return parseConstant();
            }
            else if (tokenType == (int)LogicTokenTypes.VARIABLE)
            {
                return parseVariable();
            }
            else if (tokenType == (int)LogicTokenTypes.FUNCTION)
            {
                return parseFunction();
            }

            else
            {
                return null;
            }
        }