start parser
there are conflits when the files are linking
conflito de cabecalhos resolvido
some functions with errors
correcting error message - parser
decl_var finish
iteracao complete
if done, without else
fix bug in block function
test condicional
expressao relacional feita, expressao artitimetica com apenas uma expressao
ajustando parser.h
parser finish, falta juntar os codigos
parser finished - testado com o arquivo scanner.txt
fix bug file test - atribuicao.txt
fix bug fator, bloco - has a bug in do/while loop
fix bug do/while loop - all functions need a boolean returns
change to call command first