import os

TYPE_INT = 1
TYPE_STR = 2
TYPE_FLO = 3
ID_FUNC = 4
ID_INT_VAR = 5
ID_STR_VAR = 6
ID_FLO_VAR = 7
L_BRAC = 8
R_BRAC = 9
L_S_BRAC = 10
R_S_BRAC = 11
L_C_BRAC = 12
R_C_BRAC = 13
IF_ID1 = 14
IF_ID2 = 15
IF_ID3 = 16
IF_ID4 = 17
PF = 18
SF = 19
ID_ARR = 20
EL = 21
EQ = 22
PLUS = 23
MINUS = 24
RULES = [[TYPE_INT,ID_FUNC,L_BRAC,R_BRAC,L_C_BRAC,[[TYPE_INT,ID_INT_VAR,EL],
                                                   [TYPE_STR,ID_STR_VAR,EL],
                                                   [TYPE_FLO,ID_FLO_VAR,EL]],R_C_BRAC],
         [TYPE_STR,ID_FUNC,L_BRAC,R_BRAC,L_C_BRAC,[[TYPE_INT,ID_INT_VAR,EL],
                                                   [TYPE_STR,ID_STR_VAR,EL],
                                                   [TYPE_FLO,ID_FLO_VAR,EL]],R_C_BRAC],
         [TYPE_FLO,ID_FUNC,L_BRAC,R_BRAC,L_C_BRAC,[[TYPE_INT,ID_INT_VAR,EL],
                                                   [TYPE_STR,ID_STR_VAR,EL],
                                                   [TYPE_FLO,ID_FLO_VAR,EL]],R_C_BRAC],
         [TYPE_INT,ID_INT_VAR,EL],
         [TYPE_STR,ID_STR_VAR,EL],
         [TYPE_FLO,ID_FLO_VAR,EL]]
MEMORY = []

def parse(txt):
    _TXT = ''
    TOKENS = []
    CMD = 0
    TYPE = 0
    BACKUP = ''
    for i in txt:
        if i != ' ':
            if i.isalpha():
                _TXT += i
            print(_TXT)
            if _TXT == 'int': TOKENS.append(TYPE_INT); TYPE = 1; _TXT = ''; continue
            elif _TXT == 'string': TOKENS.append(TYPE_STR); TYPE = 2; _TXT = ''; continue
            elif _TXT == 'float': TOKENS.append(TYPE_FLO); TYPE = 3; _TXT = ''; continue

            if i == '(':
                if _TXT != '':
                    MEMORY.append((_TXT,ID_FUNC))
                    TOKENS.append(ID_FUNC)
                    TOKENS.append(L_BRAC)
                    TOKENS.append(R_BRAC)
                    TYPE = 0
                    BACKUP = ''; _TXT = ''
            elif i == '[':
                if _TXT != '':
                    MEMORY.append((_TXT,ID_ARR))
                    TOKENS.append(ID_ARR)
                    TOKENS.append(L_S_BRAC)
                    TOKENS.append(R_S_BRAC)
                    TYPE = 0
                    BACKUP = '';_TXT = ''
            elif i == ';':
                if _TXT != '':
                    if TYPE == 1:
                        TOKENS.append(ID_INT_VAR)
                        MEMORY.append((_TXT,ID_INT_VAR))
                        BACKUP = ''; TYPE = 0; _TXT = ''
                    elif TYPE == 2:
                        TOKENS.append(ID_STR_VAR)
                        MEMORY.append((_TXT,ID_STR_VAR))
                        BACKUP = ''; TYPE = 0; _TXT = ''
                    elif TYPE == 3:
                        TOKENS.append(ID_FLO_VAR)
                        MEMORY.appendd((_TXT,ID_FLO_VAR))
                        BACKUP = ''; TYPE = 0; _TXT = '';
                TOKENS.append(EL)
            elif i == '{':
                TOKENS.append(L_C_BRAC)
            elif i == '}':
                TOKENS.append(R_C_BRAC)
        else:
            if TYPE == 1:
                BACKUP = _TXT
                _TXT = ''
            elif TYPE == 2:
                BACKUP = _TXT
                _TXT = ''
            elif TYPE == 3:
                BACKUP = _TXT
                _TXT = ''
            else:
                _TXT = ''
    return TOKENS

txt = 'int main;'
print(parse(txt))