/* boilerplate
*/
u3_noun
u3wfu_peek(u3_noun cor)
{
u3_noun sut, way, axe, van;
if ( (c3n == u3r_mean(cor, u3x_sam_2, &way,
u3x_sam_3, &axe,
u3x_con, &van,
0)) ||
(c3n == u3ud(axe)) ||
(u3_none == (sut = u3r_at(u3x_sam, van))) )
{
return u3m_bail(c3__fail);
} else {
return _cqfu_peek(van, sut, way, axe);
}
}
u3_noun
u3qfu_peek(u3_noun van,
u3_noun sut,
u3_noun way,
u3_noun axe)
{
c3_m fun_m = c3__peek;
u3_noun pro = u3z_find_3(fun_m, sut, way, axe);
if ( u3_none != pro ) {
return pro;
}
else {
pro = _cqfu_peek(van, sut, way, axe);
return u3z_save_3(fun_m, sut, way, axe, pro);
}
}
static u3_noun
_peek_in(u3_noun van,
u3_noun sut,
u3_noun way,
u3_atom axe,
u3_noun gil)
{
u3_noun p_sut, q_sut;
u3_noun pro;
if ( (c3n == u3du(sut)) ) switch ( sut ) {
default: return u3m_bail(c3__fail);
case c3__noun: {
return c3__noun;
}
case c3__void: {
return c3__void;
}
}
else switch ( u3h(sut) ) {
default: return u3m_bail(c3__fail);
case c3__atom: {
return c3__void;
}
case c3__bull: {
if ( (c3n == u3r_trel(sut, 0, &p_sut, &q_sut)) ) {
return u3m_bail(c3__fail);
} else {
return _peek_in(van, q_sut, way, axe, gil);
}
}
case c3__cell: {
if ( (c3n == u3r_trel(sut, 0, &p_sut, &q_sut)) ) {
return u3m_bail(c3__fail);
} else {
u3_atom tip = u3qc_cap(axe);
u3_atom tap = u3qc_mas(axe);
if ( 2 == tip ) {
pro = _cqfu_peek(van, p_sut, way, tap);
}
else {
pro = _cqfu_peek(van, q_sut, way, tap);
}
u3z(tap);
u3z(tip);
return pro;
}
}
case c3__core: {
u3_noun pq_sut, qq_sut, rq_sut;
u3_noun prq_sut, qrq_sut;
if ( (c3n == u3r_trel(sut, 0, &p_sut, &q_sut)) ||
(c3n == u3r_trel(q_sut, &pq_sut, &qq_sut, &rq_sut)) ||
(c3n == u3r_cell(rq_sut, &prq_sut, &qrq_sut)) )
{
return u3m_bail(c3__fail);
} else {
u3_atom tip = u3qc_cap(axe);
u3_atom tap = u3qc_mas(axe);
if ( 3 == tip ) {
if ( c3n == u3qfu_park(van, sut, way, tap) )
{
// u3_noun dun = u3qfu_dunq(van, "type", sut);
u3_noun waz = u3qfu_shep
(van, "axis", 'd', u3k(axe));
// u3t_push(u3nc(c3__mean, dun));
u3t_push(u3nc(c3__mean, waz));
return u3m_error("peek-park");
}
else pro = _cqfu_peek(van, p_sut, way, tap);
}
else {
pro = c3__noun;
}
u3z(tap);
u3z(tip);
return pro;
}
}
case c3__cube: {
if ( (c3n == u3r_trel(sut, 0, &p_sut, &q_sut)) ) {
return u3m_bail(c3__fail);
} else {
return _peek_in(van, q_sut, way, axe, gil);
}
}
case c3__face: {
if ( (c3n == u3r_trel(sut, 0, &p_sut, &q_sut)) ) {
return u3m_bail(c3__fail);
} else {
return _peek_in(van, q_sut, way, axe, gil);
}
}
case c3__fork: {
if ( (c3n == u3r_trel(sut, 0, &p_sut, &q_sut)) ) {
return u3m_bail(c3__fail);
} else {
u3_noun hed = _peek_in(van, p_sut, way, axe, gil);
u3_noun tal = _peek_in(van, q_sut, way, axe, gil);
pro = u3qf_fork(hed, tal);
u3z(hed);
u3z(tal);
return pro;
}
}
case c3__hold: {
p_sut = u3t(sut);
if ( (c3y == u3qdi_has(gil, sut)) ) {
return c3__void;
}
else {
u3_noun zoc = u3qdi_put(gil, sut);
u3_noun fop = u3qfu_repo(van, sut);
u3_noun pro = _peek_in(van, fop, way, axe, zoc);
u3z(fop);
u3z(zoc);
return pro;
}
}
}
}
static u3_noun
_peek_in(u3_noun van,
u3_noun sut,
u3_noun way,
u3_atom axe,
u3_noun gil)
{
u3_noun p_sut, q_sut;
u3_noun pro;
if ( (c3n == u3du(sut)) ) switch ( sut ) {
default: return u3m_bail(c3__fail);
case c3__noun: {
return c3__noun;
}
case c3__void: {
return c3__void;
}
}
else switch ( u3h(sut) ) {
default: return u3m_bail(c3__fail);
case c3__atom: {
return c3__void;
}
case c3__cell: {
if ( (c3n == u3r_trel(sut, 0, &p_sut, &q_sut)) ) {
return u3m_bail(c3__fail);
} else {
u3_atom tip = u3qc_cap(axe);
u3_atom tap = u3qc_mas(axe);
if ( 2 == tip ) {
pro = _cqfu_peek(van, p_sut, way, tap);
}
else {
pro = _cqfu_peek(van, q_sut, way, tap);
}
u3z(tap);
u3z(tip);
return pro;
}
}
case c3__core: {
u3_noun pq_sut, qq_sut, rq_sut;
u3_noun prq_sut, qrq_sut;
if ( (c3n == u3r_trel(sut, 0, &p_sut, &q_sut)) ||
(c3n == u3r_trel(q_sut, &pq_sut, &qq_sut, &rq_sut)) ||
(c3n == u3r_cell(rq_sut, &prq_sut, &qrq_sut)) )
{
return u3m_bail(c3__fail);
} else {
u3_atom now = u3qc_cap(axe);
u3_atom lat = u3qc_mas(axe);
if ( 3 == now ) {
u3_noun pec = u3qfu_perk(van, sut, way, pq_sut);
u3_noun sam = u3h(pec);
u3_noun con = u3t(pec);
if ( c3y == c3a(sam, con) ) {
pro = _cqfu_peek(van, p_sut, way, lat);
}
else {
u3_noun typ;
{
u3_noun hed, tal;
if ( c3n == sam ) {
hed = c3__noun;
} else {
hed = _cqfu_peek(van, p_sut, way, 2);
}
if ( c3n == con ) {
tal = c3__noun;
} else {
tal = _cqfu_peek(van, p_sut, way, 3);
}
typ = u3qf_cell(hed, tal);
u3z(hed);
u3z(tal);
}
pro = _cqfu_peek(van, typ, way, lat);
u3z(typ);
}
u3z(pec);
}
else {
pro = c3__noun;
}
u3z(lat);
u3z(now);
return pro;
}
}
case c3__face: {
if ( (c3n == u3r_trel(sut, 0, &p_sut, &q_sut)) ) {
return u3m_bail(c3__fail);
} else {
return _peek_in(van, q_sut, way, axe, gil);
}
}
case c3__fork: p_sut = u3t(sut);
{
u3_noun yed = u3qdi_tap(p_sut, u3_nul);
u3_noun ret = u3kf_fork(_peek_fork(van, yed, way, axe, gil));
u3z(yed);
return ret;
}
case c3__hold: {
if ( (c3y == u3qdi_has(gil, sut)) ) {
return c3__void;
}
else {
u3_noun zoc = u3qdi_put(gil, sut);
u3_noun fop = u3qfu_repo(van, sut);
u3_noun pro = _peek_in(van, fop, way, axe, zoc);
u3z(fop);
u3z(zoc);
return pro;
}
}
}
}