urbit/j/3/dor.c
2014-11-05 16:20:01 -08:00

53 lines
925 B
C

/* j/3/dor.c
**
** This file is in the public domain.
*/
#include "all.h"
/* functions
*/
u3_noun
u3_cqc_dor(
u3_atom a,
u3_atom b)
{
if ( c3y == u3r_sing(a, b) ) {
return c3y;
}
else {
if ( c3y == u3ud(a) ) {
if ( c3y == u3ud(b) ) {
return u3_cqa_lth(a, b);
}
else {
return c3y;
}
}
else {
if ( c3y == u3ud(b) ) {
return c3n;
}
else {
if ( c3y == u3r_sing(u3h(a), u3h(b)) ) {
return u3_cqc_dor(u3t(a), u3t(b));
}
else return u3_cqc_dor(u3h(a), u3h(b));
}
}
}
}
u3_noun
u3_cwc_dor(
u3_noun cor)
{
u3_noun a, b;
if ( c3n == u3r_mean(cor, u3v_sam_2, &a, u3v_sam_3, &b, 0) ) {
return u3m_bail(c3__exit);
} else {
return u3_cqc_dor(a, b);
}
}