shrub/j/4/by_has.c
2014-09-05 13:13:24 -07:00

64 lines
1.2 KiB
C

/* j/4/by_has.c
**
** This file is in the public domain.
*/
#include "all.h"
/* functions
*/
u3_bean
u3_cqdb_has(
u3_noun a,
u3_noun b)
{
if ( u3_nul == a ) {
return u3_no;
}
else {
u3_noun l_a, n_a, r_a;
u3_noun pn_a, qn_a;
if ( (u3_no == u3_cr_trel(a, &n_a, &l_a, &r_a)) ||
(u3_no == u3_cr_cell(n_a, &pn_a, &qn_a)) )
{
return u3_cm_bail(c3__exit);
}
else {
if ( (u3_yes == u3_cr_sing(b, pn_a)) ) {
return u3_yes;
}
else {
if ( u3_yes == u3_cqc_gor(b, pn_a) ) {
return u3_cqdb_has(l_a, b);
}
else return u3_cqdb_has(r_a, b);
}
}
}
}
u3_noun
u3_cwdb_has(
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_cqdb_has(a, b);
}
}
u3_bean
u3_ckdb_has(u3_noun a, u3_noun b)
{
u3_weak c = u3_cqdb_has(a, b);
u3z(a); u3z(b);
if ( u3_none == c ) {
return u3_cm_bail(c3__exit);
}
else return c;
}