static Token *savePreviousToken(Token_state *ts, TokensTable *tt)
{
// save the previous token
Token *temp_tk = createTokenByLen(ts->begin, ts->cur - ts->begin);
if(!temp_tk)
{
error_process(ts, Error_type_not_enough_mem);
return NULL;
}
else
{
if(!addTokenToTable(tt, temp_tk))
{
freeToken(temp_tk);
return NULL;
}
else
{
ts->state = Lex_state_begin;
cc_skip_space((const char **)&ts->cur);
ts->begin = ts->cur;
return temp_tk;
}
}
}
static int command_absolute(char **argv, t_sh *datas)
{
pid_t pid;
int ret;
pid = fork();
if (pid > 0)
{
wait(&ret);
datas->ret_err = ret & 0xFF;
datas->ret_val = (ret & 0xFF00) >> 8;
if (datas->ret_err)
error_process(datas->ret_err);
else
ft_printf("%{F}(%d)%{!F} ",
(datas->ret_val) ? 1 : 2, (int)datas->ret_val);
}
// an optimized getting token method that can get the token type after the process
Token *
getNextToken_Optimized(Token_state *ts, TokensTable *tt)
{
cc_skip_space((const char **)&ts->cur);
while(*ts->cur)
{
// alpha
if(isalpha(*ts->cur))
{
if(ts->state == Lex_state_begin || ts->state == Lex_state_id)
{
ts->state = Lex_state_id;
ts->sub_state = Lex_sub_state_alpha;
goto will_continue;
}
else if((*ts->cur >= 'a' && *ts->cur <= 'f')
|| (*ts->cur >= 'A' && *ts->cur <= 'F'))
{
if(ts->sub_state == Lex_sub_state_hex_num)
{
goto will_continue;
}
}
else
{
}
}
else if(*ts->cur == '_') // '_'
{
if(ts->state == Lex_state_begin || ts->state == Lex_state_id)
{
ts->state = Lex_state_id;
ts->sub_state = Lex_sub_state_underline;
goto will_continue;
}
}
else if(isdigit(*ts->cur)) // digit
{
if(ts->state == Lex_state_begin)
{
if(*ts->cur == '0')
{
ts->state = Lex_state_literal_num;
ts->sub_state = Lex_sub_state_oct_num;
goto will_continue;
}
else
{
ts->state = Lex_state_literal_num;
ts->sub_state = Lex_sub_state_dec_num;
goto will_continue;
}
}
else if(ts->sub_state == Lex_sub_state_dec_num)
{
ts->state = Lex_state_literal_num;
ts->sub_state = Lex_sub_state_dec_num;
goto will_continue;
}
else if(ts->sub_state == Lex_sub_state_oct_num)
{
if(*ts->cur >= '8')
{
error_process(ts, Error_type_oct_include_over_7_num);
return false;
}
else
{
ts->state = Lex_state_literal_num;
ts->sub_state = Lex_sub_state_oct_num;
goto will_continue;
}
}
else if(ts->state == Lex_state_id)
{
goto will_continue;
}
else if(ts->state == Lex_sub_state_hex_num)
{
goto will_continue;
}
else
{
}
}
else if(isspace(*ts->cur)) // ' ', '\t', '\n', '\v',...
{
if(ts->state != Lex_state_begin)
{
return savePreviousToken(ts, tt);
}
else
{
cc_skip_space((const char **)&ts->cur);
ts->begin = ts->cur;
continue;
}
}
else if(isOpeChar(ts->cur)) // operator , '<', '=' and so on
{
if(ts->state == Lex_state_begin)
{
ts->state = Lex_state_op;
goto will_continue;
}
else if(ts->state == Lex_state_op)
{
if(isOpeChar_n(ts->begin, ts->cur - ts->begin + 1))
{
ts->state = Lex_state_op;
goto will_continue;
}
else
{
return savePreviousToken(ts, tt);
}
}
}
else if(*ts->cur == ';')
{
if(ts->state != Lex_state_begin)
{
return savePreviousToken(ts, tt);
}
else
{
++ts->cur;
return savePreviousToken(ts, tt);
}
}
will_continue:
++ts->cur;
continue;
}
if(*ts->cur == '\0' && ts->cur != ts->begin)
{
return savePreviousToken(ts, tt);
}
return NULL;
}
