mirror of
https://github.com/ilyakooo0/urbit.git
synced 2024-12-03 14:37:05 +03:00
62 lines
1.1 KiB
C
62 lines
1.1 KiB
C
/* j/4/in_tap.c
|
|
**
|
|
** This file is in the public domain.
|
|
*/
|
|
#include "all.h"
|
|
|
|
|
|
/* functions
|
|
*/
|
|
static u3_noun
|
|
_tap_in(
|
|
u3_noun a,
|
|
u3_noun b)
|
|
{
|
|
if ( u3_nul == a ) {
|
|
return b;
|
|
} else {
|
|
u3_noun l_a, n_a, r_a;
|
|
|
|
if ( (u3_no == u3_cr_trel(a, &n_a, &l_a, &r_a)) ) {
|
|
u3z(b);
|
|
return u3_cm_bail(c3__exit);
|
|
} else {
|
|
return _tap_in
|
|
(r_a,
|
|
u3nc(u3k(n_a),
|
|
_tap_in(l_a, b)));
|
|
}
|
|
}
|
|
}
|
|
|
|
u3_noun
|
|
u3_cqdi_tap(
|
|
u3_noun a,
|
|
u3_noun b)
|
|
{
|
|
return _tap_in(a, u3k(b));
|
|
}
|
|
u3_noun
|
|
u3_cwdi_tap(
|
|
u3_noun cor)
|
|
{
|
|
u3_noun a, b;
|
|
|
|
if ( u3_no == u3_cr_mean(cor, u3_cv_sam, &b, u3_cv_con_sam, &a, 0) ) {
|
|
return u3_cm_bail(c3__exit);
|
|
} else {
|
|
return u3_cqdi_tap(a, b);
|
|
}
|
|
}
|
|
u3_noun
|
|
u3_ckdi_tap(u3_noun a, u3_noun b)
|
|
{
|
|
u3_weak c = u3_cqdi_tap(a, b);
|
|
|
|
u3z(a); u3z(b);
|
|
if ( u3_none == c ) {
|
|
return u3_cm_bail(c3__exit);
|
|
}
|
|
else return c;
|
|
}
|