urbit/jets/z/loot.c
2018-05-05 15:10:34 -07:00

134 lines
3.0 KiB
C

/* j/6/loot.c
**
*/
#include "all.h"
/* internals
*/
static u3_noun
_loot_in(u3_noun cog,
u3_noun dom,
u3_atom axe)
{
if ( u3_nul == dom ) {
return u3_nul;
}
else {
u3_noun n_dom, l_dom, r_dom;
u3r_trel(dom, &n_dom, &l_dom, &r_dom);
if ( c3n == u3du(n_dom) ) {
return u3m_bail(c3__fail);
}
else {
u3_noun qqn_dom = u3t(u3t(n_dom));
u3_noun yep = u3qz_look(cog, qqn_dom);
if ( (u3_nul == l_dom) && (u3_nul == r_dom) ) {
if ( u3_nul == yep ) {
return u3_nul;
} else {
u3_noun u_yep = u3t(yep);
u3_noun pro;
pro = u3nt(u3_nul, u3qc_peg(axe, u3h(u_yep)), u3k(u3t(u_yep)));
u3z(yep);
return pro;
}
}
else if ( (u3_nul == l_dom) ) {
if ( u3_nul == yep ) {
u3_noun nax = u3qc_peg(axe, 3);
u3_noun pro;
pro = _loot_in(cog, r_dom, nax);
u3z(nax);
return pro;
}
else {
u3_noun u_yep = u3t(yep);
u3_noun nax = u3qc_peg(axe, 2);
u3_noun pro;
pro = u3nt(u3_nul, u3qc_peg(nax, u3h(u_yep)), u3k(u3t(u_yep)));
u3z(nax);
u3z(yep);
return pro;
}
}
else if ( (u3_nul == r_dom) ) {
if ( u3_nul == yep ) {
u3_noun nax = u3qc_peg(axe, 3);
u3_noun pro;
pro = _loot_in(cog, l_dom, nax);
u3z(nax);
return pro;
}
else {
u3_noun u_yep = u3t(yep);
u3_noun nax = u3qc_peg(axe, 2);
u3_noun pro;
pro = u3nt(u3_nul, u3qc_peg(nax, u3h(u_yep)), u3k(u3t(u_yep)));
u3z(nax);
u3z(yep);
return pro;
}
}
else {
if ( u3_nul == yep ) {
u3_noun nax = u3qc_peg(axe, 6);
u3_noun pey;
pey = _loot_in(cog, l_dom, nax);
u3z(nax);
if ( u3_nul != pey ) {
return pey;
}
else {
u3_noun nax = u3qc_peg(axe, 7);
u3_noun pro;
pro = _loot_in(cog, r_dom, nax);
u3z(nax);
return pro;
}
}
else {
u3_noun u_yep = u3t(yep);
u3_noun nax = u3qc_peg(axe, 2);
u3_noun pro;
pro = u3nt(u3_nul, u3qc_peg(nax, u3h(u_yep)), u3k(u3t(u_yep)));
u3z(nax);
u3z(yep);
return pro;
}
}
}
}
}
/* functions
*/
u3_noun
u3qz_loot(u3_noun cog,
u3_noun dom)
{
return _loot_in(cog, dom, 1);
}
u3_noun
u3wz_loot(u3_noun cor)
{
u3_noun cog, dom;
if ( c3n == u3r_mean(cor, u3x_sam_2, &cog, u3x_sam_3, &dom, 0) ) {
return u3m_bail(c3__fail);
} else {
return u3qz_loot(cog, dom);
}
}