sym_infix        1889 src/extlib.c   static ScmObj sym_infix = SCM_UNBOUND;
sym_infix        1926 src/extlib.c     if (SCM_UNBOUNDP(grammer) || SCM_UNDEFINEDP(grammer) || grammer == sym_infix)
sym_infix        6149 src/extlib.c     sym_infix = Scm_Intern(&sym_infix__NAME);