int String_split(String *s, int pos){
if(s->num < pos) return 1;
String *back;
int size;
back = String_create();
if(back == NULL) return 1;
size = s->num - pos;
mpc_memcpy(back->string, &s->string[pos], size);
back->num = size;
back->line_num = back->num / WindowWidth + 1;
mpc_memset(&s->string[pos], 0, size);
s->num -= size;
s->line_num = s->num / WindowWidth + 1;
back->next = s->next;
if(back->next->prev != NULL)
back->next->prev = back;
s->next = back;
back->prev = s;
return 0;
}
void
mpc_log_stderr(int err, const char *fmt, ...)
{
mpc_logger_t *l = &mpc_logger;
uint8_t errstr[MPC_LOG_MAX_LEN];
uint8_t *p, *last;
va_list args;
ssize_t n;
last = errstr + MPC_LOG_MAX_LEN;
p = errstr + 5;
mpc_memcpy(errstr, "mpc: ", 5);
va_start(args, fmt);
p = mpc_vslprintf(p, last, fmt, args);
va_end(args);
if (err) {
p = mpc_log_errno(p, last, err);
}
if (p > last - 1) {
p = last - 1;
}
*p++ = LF;
n = write(STDERR_FILENO, errstr, p - errstr);
if (n < 0) {
l->nerror++;
}
}
