rcs_strsplit
aargv = rcs_strsplit(alist, ",");
eargv = rcs_strsplit(elist, ",");
revargv = rcs_strsplit(range, ",");
revrange = rcs_strsplit(revargv->argv[i], ":");
struct rcs_argvector *rcs_strsplit(const char *, const char *);
args = rcs_strsplit(date, ";");
largv = rcs_strsplit(llist, ",");
sargv = rcs_strsplit(slist, ",");
wargv = rcs_strsplit(wlist, ",");