mirror of
https://github.com/urbit/shrub.git
synced 2024-12-22 18:31:44 +03:00
118 lines
2.5 KiB
C
118 lines
2.5 KiB
C
/* j/4/put.c
|
|
**
|
|
*/
|
|
#include "all.h"
|
|
|
|
|
|
/* functions
|
|
*/
|
|
u3_noun
|
|
u3qdb_put(u3_noun a,
|
|
u3_noun b,
|
|
u3_noun c)
|
|
{
|
|
if ( u3_nul == a ) {
|
|
return u3nt(
|
|
u3nc(u3k(b),
|
|
u3k(c)),
|
|
u3_nul,
|
|
u3_nul);
|
|
}
|
|
else {
|
|
u3_noun l_a, n_a, r_a, pn_a, qn_a;
|
|
u3_noun d, l_d, n_d, r_d;
|
|
|
|
if ( (c3n == u3r_trel(a, &n_a, &l_a, &r_a)) ||
|
|
(c3n == u3r_cell(n_a, &pn_a, &qn_a)) )
|
|
{
|
|
return u3m_bail(c3__exit);
|
|
}
|
|
else if ( c3y == u3r_sing(pn_a, b) ) {
|
|
if ( c3y == u3r_sing(qn_a, c) ) {
|
|
return u3k(a);
|
|
} else {
|
|
return u3nt
|
|
(u3nc(u3k(b), u3k(c)),
|
|
u3k(l_a),
|
|
u3k(r_a));
|
|
}
|
|
}
|
|
else {
|
|
if ( c3y == u3qc_gor(b, pn_a) ) {
|
|
d = u3qdb_put(l_a, b, c);
|
|
|
|
if ( c3y == u3qc_mor(pn_a, u3h(u3h(d))) ) {
|
|
return u3nt(u3k(n_a),
|
|
d,
|
|
u3k(r_a));
|
|
}
|
|
else {
|
|
u3r_trel(d, &n_d, &l_d, &r_d);
|
|
{
|
|
u3_noun e = u3nt
|
|
(u3k(n_d),
|
|
u3k(l_d),
|
|
u3nt(u3k(n_a),
|
|
u3k(r_d),
|
|
u3k(r_a)));
|
|
|
|
u3z(d);
|
|
return e;
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
d = u3qdb_put(r_a, b, c);
|
|
|
|
if ( c3y == u3qc_mor(pn_a, u3h(u3h(d))) ) {
|
|
return u3nt(u3k(n_a),
|
|
u3k(l_a),
|
|
d);
|
|
}
|
|
else {
|
|
u3r_trel(d, &n_d, &l_d, &r_d);
|
|
{
|
|
u3_noun e = u3nt
|
|
(u3k(n_d),
|
|
u3nt(u3k(n_a),
|
|
u3k(l_a),
|
|
u3k(l_d)),
|
|
u3k(r_d));
|
|
|
|
u3z(d);
|
|
return e;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
u3_noun
|
|
u3wdb_put(u3_noun cor)
|
|
{
|
|
u3_noun a, b, c;
|
|
|
|
if ( c3n == u3r_mean(cor, u3x_sam_2, &b,
|
|
u3x_sam_3, &c,
|
|
u3x_con_sam, &a, 0) ) {
|
|
return u3m_bail(c3__exit);
|
|
} else {
|
|
return u3qdb_put(a, b, c);
|
|
}
|
|
}
|
|
u3_weak
|
|
u3kdb_put(u3_noun a,
|
|
u3_noun b,
|
|
u3_noun c)
|
|
{
|
|
// Bizarre asymmetry in old jets.
|
|
//
|
|
// (Mysterious comment in old glue code.)
|
|
//
|
|
u3_noun pro = u3qdb_put(a, b, c);
|
|
|
|
u3z(a); u3z(b); u3z(c);
|
|
return pro;
|
|
}
|
|
|