Package br.ufpe.cin.if688.AulaMonitoria;

Helpers
  digit = ['0' .. '9'];

Tokens

number = digit+;
plus = '+';
minus = '-';
mult = '*';
div = '/';
mod = '%';
l_par = '(';
r_par = ')';
blank = (' ' | 13 | 10)+;

Ignored Tokens

blank;

Productions

expr =
{factor} factor |
{plus} expr plus factor |
{minus} expr minus factor;

factor =
{term} term |
{mult} factor mult term |
{div} factor div term |
{mod} factor mod term;

term =
{number} number |
{expr} l_par expr r_par;