- for (opt = strtok(old_opts, ","); opt; opt = strtok(NULL, ",")) {
+ for (p=old_opts, opt_b=NULL; p && *p; p++) {
+ if (!opt_b)
+ opt_b = p; /* begin of the option item */
+ if (*p == '"')
+ open_quote ^= 1; /* reverse the status */
+ if (open_quote)
+ continue; /* still in a quoted block */
+ if (*p == ',')
+ *p = '\0'; /* terminate the option item */
+ if (*p == '\0' || *(p+1) == '\0') {
+ opt = opt_b; /* opt is useful now */
+ opt_b = NULL;
+ }
+ else
+ continue; /* still somewhere in the option item */
+