Handle token vectors with less than 2 values in the Parser::parseVector() method.

src/headers/parsing/Parser.hpp

@@ -7,11 +7,13 @@ namespace Parser {
     ParseTree parseVector(const vector<tok>& lexed) {
         ParseTree parseTree;
         using namespace StandardComponents::types;
+        if (lexed.size() > 1) {
             for (unsigned int i = 0; i < lexed.size() - 1; ++i) {
                 const auto& current = lexed[i], next = lexed[i + 1];
 
 
             }
+        }
         return parseTree;
     }
 }