shrub/jets/b/lien.c
2018-04-30 09:57:09 -07:00

50 lines
922 B
C

/* j/2/lien.c
**
*/
#include "all.h"
static u3_noun
_lien_in(u3j_site* sit_u, u3_noun a)
{
if ( 0 == a ) {
return c3n;
} else {
u3_noun loz;
if ( c3n == u3du(a) ) {
return u3m_bail(c3__exit);
}
else switch ( (loz = u3j_gate_slam(sit_u, u3k(u3h(a)))) ) {
case c3y: return c3y;
case c3n: return _lien_in(sit_u, u3t(a));
default: u3z(loz);
return u3m_bail(c3__exit);
}
}
}
/* functions
*/
u3_noun
u3qb_lien(u3_noun a,
u3_noun b)
{
u3_noun pro;
u3j_site sit_u;
u3j_gate_prep(&sit_u, u3k(b));
pro = _lien_in(&sit_u, a);
u3j_gate_lose(&sit_u);
return pro;
}
u3_noun
u3wb_lien(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_lien(a, b);
}
}