+ fprintf(out, "%s", atom->name);
+}
+
+ao_poly
+ao_scheme_do_symbolp(struct ao_scheme_cons *cons)
+{
+ return ao_scheme_do_typep(_ao_scheme_atom_symbol3f, AO_SCHEME_ATOM, cons);
+}
+
+ao_poly
+ao_scheme_do_set(struct ao_scheme_cons *cons)
+{
+ ao_poly atom;
+ ao_poly val;
+ ao_poly *ref;
+
+ if (!ao_scheme_parse_args(_ao_scheme_atom_set, cons,
+ AO_SCHEME_ATOM|AO_SCHEME_ARG_RET_POLY, &atom,
+ AO_SCHEME_POLY, &val,
+ AO_SCHEME_ARG_END))
+ return AO_SCHEME_NIL;
+
+ ref = ao_scheme_atom_ref(atom, NULL);
+
+ if (!ref)
+ return ao_scheme_error(AO_SCHEME_UNDEFINED, "%v: undefined atom %v",
+ _ao_scheme_atom_set, atom);
+ *ref = val;
+ return val;
+}
+
+ao_poly
+ao_scheme_do_def(struct ao_scheme_cons *cons)
+{
+ ao_poly atom;
+ ao_poly val;
+
+ if (!ao_scheme_parse_args(_ao_scheme_atom_set, cons,
+ AO_SCHEME_ATOM|AO_SCHEME_ARG_RET_POLY, &atom,
+ AO_SCHEME_POLY, &val,
+ AO_SCHEME_ARG_END))
+ return AO_SCHEME_NIL;
+ return ao_scheme_atom_def(atom, val);
+}
+
+ao_poly
+ao_scheme_do_setq(struct ao_scheme_cons *cons)
+{
+ ao_poly atom;
+ ao_poly val;
+ ao_poly p;
+
+ if (!ao_scheme_parse_args(_ao_scheme_atom_set21, cons,
+ AO_SCHEME_ATOM|AO_SCHEME_ARG_RET_POLY, &atom,
+ AO_SCHEME_POLY, &val,
+ AO_SCHEME_ARG_END))
+ return AO_SCHEME_NIL;
+ if (!ao_scheme_atom_ref(atom, NULL))
+ return ao_scheme_error(AO_SCHEME_INVALID, "%v: symbol %v not defined",
+ _ao_scheme_atom_set21, atom);
+ /*
+ * Build the macro return -- `(set (quote ,atom) ,val)
+ */
+ ao_scheme_poly_stash(cons->cdr);
+ p = ao_scheme_cons(atom, AO_SCHEME_NIL);
+ p = ao_scheme_cons(_ao_scheme_atom_quote, p);
+ p = ao_scheme_cons(p, ao_scheme_poly_fetch());
+ return ao_scheme_cons(_ao_scheme_atom_set, p);
+}
+
+#ifdef AO_SCHEME_FEATURE_UNDEF
+ao_poly
+ao_scheme_do_undef(struct ao_scheme_cons *cons)
+{
+ ao_poly atom;
+
+ if (!ao_scheme_parse_args(_ao_scheme_atom_set, cons,
+ AO_SCHEME_ATOM|AO_SCHEME_ARG_RET_POLY, &atom,
+ AO_SCHEME_ARG_END))
+ return AO_SCHEME_NIL;
+ return ao_scheme_frame_del(ao_scheme_frame_global, atom);