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/// @file
#include "jets/q.h"
#include "jets/w.h"
#include "noun.h"
u3_noun
u3qb_skid(u3_noun a, u3_noun b)
{
u3_noun l, r;
u3_noun* lef = &l;
u3_noun* rig = &r;
if ( u3_nul != a) {
u3_noun i, t;
u3_noun* hed;
u3_noun* tel;
u3j_site sit_u;
u3j_gate_prep(&sit_u, u3k(b));
u3k(a);
do {
i = u3h(a);
switch ( u3j_gate_slam(&sit_u, u3k(i)) ) {
case c3y: {
*lef = u3i_defcons(&hed, &tel);
*hed = u3k(i);
lef = tel;
} break;
case c3n: {
*rig = u3i_defcons(&hed, &tel);
*hed = u3k(i);
rig = tel;
} break;
default: u3m_bail(c3__exit);
}
t = u3k(u3t(a));
u3z(a), a = t;
}
while ( u3_nul != a );
u3j_gate_lose(&sit_u);
}
*lef = u3_nul;
*rig = u3_nul;
return u3nc(l, r);
}
u3_noun
u3wb_skid(u3_noun cor)
{
u3_noun a, b;
u3x_mean(cor, u3x_sam_2, &a, u3x_sam_3, &b, 0);
return u3qb_skid(a, b);
}
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