u3_noun
u3wf_flip(
u3_noun cor)
{
u3_noun hel;
if ( u3_none == (hel = u3r_at(u3x_sam, cor)) ) {
return u3m_bail(c3__fail);
} else {
return u3qf_flip(hel);
}
}
static u3_noun
_fish_in(u3_noun van,
u3_noun sut,
u3_atom axe,
u3_noun vit)
{
u3_noun p_sut, q_sut;
if ( c3y == u3ud(sut) ) switch ( sut ) {
default: return u3m_bail(c3__fail);
case c3__noun: {
return u3nc(1, 0);
}
case c3__void: {
return u3nc(1, 1);
}
}
else switch ( u3h(sut) ) {
default: return u3m_bail(c3__fail);
case c3__atom: {
if ( (c3n == u3r_trel(sut, 0, &p_sut, &q_sut)) ) {
return u3m_bail(c3__fail);
} else {
if ( c3n == u3du(q_sut) ) {
u3_noun ton = u3nt(3, 0, u3k(axe));
u3_noun pro = u3qf_flip(ton);
u3z(ton);
return pro;
} else {
return u3nt(5,
u3nc(1, u3k(u3t(q_sut))),
u3nc(0, u3k(axe)));
}
}
}
case c3__cell: {
if ( (c3n == u3r_trel(sut, 0, &p_sut, &q_sut)) ) {
return u3m_bail(c3__fail);
} else {
u3_noun hut = u3nt(3, 0, u3k(axe));
u3_noun lef = u3qc_peg(axe, 2);
u3_noun rit = u3qc_peg(axe, 3);
u3_noun hed = _fish_in(van, p_sut, lef, vit);
u3_noun tal = _fish_in(van, q_sut, rit, vit);
u3_noun hob = u3qf_flan(hed, tal);
u3_noun vug = u3qf_flan(hut, hob);
u3z(hob);
u3z(tal);
u3z(hed);
u3z(rit);
u3z(lef);
u3z(hut);
return vug;
}
}
case c3__core: {
return u3nc(0, 0);
}
case c3__face: {
if ( (c3n == u3r_trel(sut, 0, &p_sut, &q_sut)) ) {
return u3m_bail(c3__fail);
} else {
return _fish_in(van, q_sut, axe, vit);
}
}
case c3__fork: p_sut = u3t(sut);
{
u3_noun yed = u3qdi_tap(p_sut, u3_nul);
u3_noun ret = _fish_fork(van, yed, axe, vit);
u3z(yed);
return ret;
}
case c3__hold: {
p_sut = u3t(sut);
{
if ( (c3y == u3qdi_has(vit, sut)) ) {
// u3_noun dun = u3qfu_dunq(van, "type", sut);
u3_noun niz = u3qfu_shep
(van, "axis", 'd', u3k(axe));
// u3t_push(u3nc(c3__mean, dun));
u3t_push(u3nc(c3__mean, niz));
return u3m_error("fish-loop");
} else {
u3_noun zoc = u3qdi_put(vit, sut);
u3_noun fop = u3qfu_repo(van, sut);
u3_noun pro = _fish_in(van, fop, axe, zoc);
u3z(fop);
u3z(zoc);
return pro;
}
}
}
}
}