static size_t cmd_param_len(LPCTSTR lpParam)
{
int nBacket = 0;
TCHAR c;
LPCTSTR lpStr = lpParam;
while ( (c = *lpStr) != 0 )
{
if ( is_blank_char(c) && (nBacket == 0 || nBacket == 2) )
{
break;
}
lpStr++;
if ( c == _T('\"') )
{
nBacket++;
}
else if ( c == _T('\\') )
{
// 转义
if ( lpStr[1] == 0 )
{
break;
}
lpStr++;
}
}
return (lpStr - lpParam);
}
static inline LPCTSTR skip_no_blank(LPCTSTR lpStr)
{
TCHAR c;
while ( (c = *lpStr) != 0 )
{
if ( is_blank_char(c) )
{
return lpStr;
}
lpStr++;
}
return lpStr;
}
int myAtoi(char *str) {
int ans = 0;
boolean check_blank = TRUE;
boolean check_sign = TRUE;
boolean negative = FALSE;
boolean overflow = FALSE;
int i = 0;
while (*str != '\0') {
if (check_blank) {
if (!is_blank_char(*str)) {
check_blank = FALSE;
continue;
}
}
else if (check_sign) {
if (*str == '+') {
check_sign = FALSE;
str++;
i++;
}
else if (*str == '-') {
negative = TRUE;
check_sign = FALSE;
str++;
i++;
}
else {
check_sign = FALSE;
}
continue;
}
else {
char num = is_number(*str);
printf(" num %d\n", num);
if (num == -1) {
break;
}
else {
int new_ans_multiply = ans * 10;
if (new_ans_multiply / 10 != ans) {
overflow = TRUE;
}
int new_ans_sum = new_ans_multiply + num;
if (new_ans_sum < new_ans_multiply) {
overflow = TRUE;
}
ans = new_ans_sum;
}
}
str++;
i++;
}
if (negative) {
ans = -ans;
if (overflow) {
ans = 0x80000000;
}
}
else {
if (overflow) {
ans = 0x7FFFFFFF;
}
}
return ans;
}