shrub/jets/b/murn.c
Paul Driver d997f035ae murn
2018-04-26 18:55:17 -07:00

57 lines
1.0 KiB
C

/* j/2/murn.c
**
*/
#include "all.h"
u3_noun
_murn_in(u3j_site* sit_u, u3_noun a)
{
if ( 0 == a ) {
return a;
}
else if ( c3n == u3du(a) ) {
return u3m_bail(c3__exit);
}
else {
u3_noun one = u3j_gate_slam(sit_u, u3k(u3h(a)));
u3_noun two = _murn_in(sit_u, u3t(a));
u3_noun nex;
switch ( u3ud(one) ) {
case c3y: u3z(one);
return two;
case c3n: nex = u3nc(u3k(u3t(one)), two);
u3z(one);
return nex;
default: u3z(one);
u3z(two);
return u3_none;
}
}
}
/* functions
*/
u3_noun
u3qb_murn(u3_noun a, u3_noun b)
{
u3_noun pro;
u3j_site sit_u;
u3j_gate_prep(&sit_u, b);
pro = _murn_in(&sit_u, a);
u3j_gate_lose(&sit_u);
return pro;
}
u3_noun
u3wb_murn(u3_noun cor)
{
u3_noun a, b;
if ( c3n == u3r_mean(cor, u3x_sam_2, &a, u3x_sam_3, &b, 0) ) {
return u3m_bail(c3__exit);
} else {
return u3qb_murn(a, b);
}
}