Added the assignment operators to the lexeme group function
tree0f08cde06b932ff81bca8e655be48ebf617b2cf4
drwxr-xr-x - fridh
drwxr-xr-x - interpreter
drwxr-xr-x - lexer
-rw-r--r-- 1760 main.cpp
drwxr-xr-x - parser
drwxr-xr-x - variable