urbit/j/4/in_put.c

109 lines
2.4 KiB
C
Raw Normal View History

2013-09-29 00:21:18 +04:00
/* j/4/in_put.c
**
** This file is in the public domain.
*/
#include "all.h"
2014-09-04 07:10:43 +04:00
2013-09-29 00:21:18 +04:00
/* functions
*/
2014-09-06 00:13:24 +04:00
u3_noun
u3_cqdi_put(
u3_noun a,
u3_noun b)
2013-09-29 00:21:18 +04:00
{
2014-09-06 00:13:24 +04:00
if ( u3_nul == a ) {
return u3nt(u3k(b), u3_nul, u3_nul);
2013-09-29 00:21:18 +04:00
}
else {
2014-09-06 00:13:24 +04:00
u3_noun l_a, n_a, r_a, lr_a; // XX copy tree boilerplate to other pt4
u3_noun c, l_c, n_c, r_c;
2013-09-29 00:21:18 +04:00
2014-11-05 04:18:47 +03:00
if ( (c3n == u3_cr_cell(a, &n_a, &lr_a)) ) {
2014-09-06 00:13:24 +04:00
return u3_cm_bail(c3__exit);
}
2014-11-05 04:18:47 +03:00
else if ( c3y == u3_cr_sing(n_a, b) ) {
2014-09-06 00:13:24 +04:00
return u3k(a);
2013-09-29 00:21:18 +04:00
}
2014-11-05 04:18:47 +03:00
else if ( c3n == u3_cr_cell(lr_a, &l_a, &r_a) ) {
2014-09-06 00:13:24 +04:00
return u3_cm_bail(c3__exit);
2013-09-29 00:21:18 +04:00
}
else {
2014-11-05 04:18:47 +03:00
if ( c3y == u3_cqc_hor(b, n_a) ) {
2014-09-06 00:13:24 +04:00
c = u3_cqdi_put(l_a, b);
2013-09-29 00:21:18 +04:00
2014-11-05 04:18:47 +03:00
if ( c3y == u3_cqc_vor(n_a, u3h(c)) ) {
2014-09-06 00:13:24 +04:00
return u3nt(u3k(n_a),
c,
2014-09-06 00:13:24 +04:00
u3k(r_a));
2013-09-29 00:21:18 +04:00
}
else {
2014-09-06 00:13:24 +04:00
u3_cr_trel(c, &n_c, &l_c, &r_c);
2013-09-29 00:21:18 +04:00
{
2014-09-06 00:13:24 +04:00
u3_noun d = u3nt
(u3k(n_c),
u3k(l_c),
u3nt(
u3k(n_a),
u3k(r_c),
u3k(r_a)));
2013-09-29 00:21:18 +04:00
2014-09-06 00:13:24 +04:00
u3z(c);
2013-09-29 00:21:18 +04:00
return d;
}
}
}
else {
2014-09-06 00:13:24 +04:00
c = u3_cqdi_put(r_a, b);
2013-09-29 00:21:18 +04:00
2014-11-05 04:18:47 +03:00
if ( c3y == u3_cqc_vor(n_a, u3h(c)) ) {
2014-09-06 00:13:24 +04:00
return u3nt(u3k(n_a),
u3k(l_a),
2013-09-29 00:21:18 +04:00
c);
}
else {
2014-09-06 00:13:24 +04:00
u3_cr_trel(c, &n_c, &l_c, &r_c);
2013-09-29 00:21:18 +04:00
{
2014-09-06 00:13:24 +04:00
u3_noun d = u3nt
(u3k(n_c),
u3nt(
u3k(n_a),
u3k(l_a),
u3k(l_c)),
u3k(r_c));
2013-09-29 00:21:18 +04:00
2014-09-06 00:13:24 +04:00
u3z(c);
2013-09-29 00:21:18 +04:00
return d;
}
}
}
}
}
}
2014-09-06 00:13:24 +04:00
u3_noun
u3_cwdi_put(
u3_noun cor)
2013-09-29 00:21:18 +04:00
{
2014-09-06 00:13:24 +04:00
u3_noun a, b;
2013-09-29 00:21:18 +04:00
2014-11-05 04:18:47 +03:00
if ( c3n == u3_cr_mean(cor, u3_cv_sam, &b, u3_cv_con_sam, &a, 0) ) {
2014-09-06 00:13:24 +04:00
return u3_cm_bail(c3__exit);
2013-09-29 00:21:18 +04:00
} else {
2014-09-06 00:13:24 +04:00
return u3_cqdi_put(a, b);
2013-09-29 00:21:18 +04:00
}
}
2014-10-22 00:53:27 +04:00
u3_weak
u3_ckdi_put(u3_noun a, u3_noun b)
{
// Bizarre asymmetry in old jets.
//
// (Mysterious comment in old glue code.)
//
u3_noun pro = u3_cqdi_put(a, b);
u3z(a); u3z(b);
return pro;
}
2013-09-29 00:21:18 +04:00