sym_index        1993 src/extlib.c   static ScmObj sym_index = SCM_UNBOUND;
sym_index        2021 src/extlib.c     if (SCM_NULLP(SCM_OPTARGS)) mode_scm = sym_index;
sym_index        2029 src/extlib.c     if (mode == sym_index)         retmode = SCM_STRING_SCAN_INDEX;
sym_index        6142 src/extlib.c     sym_index = Scm_Intern(&sym_index__NAME);