# # @LANG: ruby # %%{ machine atoi3; action begin { neg = false; val = 0; } action see_neg { neg = true; } action add_digit { val = val * 10 + (fc - "0"[0]); } action finish { val = -1 * val if neg } action print { puts val; } atoi = (('-' @ see_neg | '+') ? (digit @ add_digit) +) > begin % finish; main := atoi '\n' @ print; }%% %% write data; def run_machine( data ) p = 0; pe = data.length cs = 0 val = 0; neg = false; %% write init; %% write exec; if cs >= atoi3_first_final puts "ACCEPT" else puts "FAIL" end end inp = [ "1\n", "12\n", "222222\n", "+2123\n", "213 3213\n", "-12321\n", "--123\n", "-99\n", " -3000\n", ] inp.each { |str| run_machine(str) } =begin _____OUTPUT_____ 1 ACCEPT 12 ACCEPT 222222 ACCEPT 2123 ACCEPT FAIL -12321 ACCEPT FAIL -99 ACCEPT FAIL =end _____OUTPUT_____