mirror of
https://github.com/ilyakooo0/urbit.git
synced 2024-09-20 15:08:34 +03:00
105 lines
2.5 KiB
C
105 lines
2.5 KiB
C
/* j/6/tock.c
|
|
**
|
|
** This file is in the public domain.
|
|
*/
|
|
#include "all.h"
|
|
#include "../pit.h"
|
|
|
|
/* internals
|
|
*/
|
|
static u2_noun
|
|
_tock_in(
|
|
u2_noun van,
|
|
u2_noun sut,
|
|
u2_noun peh,
|
|
u2_noun mur,
|
|
u2_noun men)
|
|
{
|
|
if ( u2_no == u2du(men) ) {
|
|
return u2nc(u2_nul, u2_nul);
|
|
}
|
|
else {
|
|
u2_noun i_men = u2h(men);
|
|
u2_noun pi_men = u2h(i_men);
|
|
u2_noun qi_men = u2t(i_men);
|
|
u2_noun t_men = u2t(men);
|
|
u2_noun geq = u2_cqfu_tack(van, pi_men, peh, mur);
|
|
u2_noun p_geq = u2h(geq);
|
|
u2_noun q_geq = u2t(geq);
|
|
u2_noun mox = _tock_in(van, sut, peh, mur, t_men);
|
|
u2_noun p_mox = u2h(mox);
|
|
u2_noun q_mox = u2t(mox);
|
|
u2_noun ret;
|
|
|
|
ret = u2nc(
|
|
( (u2_nul == p_mox)
|
|
? u2nc(u2_nul, u2k(p_geq))
|
|
: (u2_no == u2_cr_sing(p_geq, u2t(p_mox)))
|
|
? u2_cm_bail(c3__exit)
|
|
: u2k(p_mox) ),
|
|
u2nc(u2nc(u2k(q_geq),
|
|
u2k(qi_men)),
|
|
u2k(q_mox)));
|
|
|
|
u2z(mox);
|
|
u2z(geq);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
/* functions
|
|
*/
|
|
u2_noun
|
|
_cqfu_tock(
|
|
u2_noun van,
|
|
u2_noun sut,
|
|
u2_noun peh,
|
|
u2_noun mur,
|
|
u2_noun men)
|
|
{
|
|
u2_noun wib = _tock_in(van, sut, peh, mur, men);
|
|
u2_noun p_wib = u2h(wib);
|
|
u2_noun q_wib = u2t(wib);
|
|
|
|
if ( u2_nul == p_wib ) {
|
|
return u2_cm_bail(c3__exit);
|
|
} else {
|
|
u2_noun ret = u2nc(u2k(u2t(p_wib)),
|
|
u2k(q_wib));
|
|
|
|
u2z(wib);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
/* boilerplate
|
|
*/
|
|
u2_noun
|
|
u2_cwfu_tock(
|
|
u2_noun cor)
|
|
{
|
|
u2_noun van, sut, peh, mur, men;
|
|
|
|
if ( (u2_no == u2_cr_mean(cor, u2_cv_sam_2, &peh,
|
|
u2_cv_sam_6, &mur,
|
|
u2_cv_sam_7, &men,
|
|
u2_cv_con, &van,
|
|
0)) ||
|
|
(u2_none == (sut = u2_cr_at(u2_cv_sam, van))) )
|
|
{
|
|
return u2_cm_bail(c3__fail);
|
|
} else {
|
|
return _cqfu_tock(van, sut, peh, mur, men);
|
|
}
|
|
}
|
|
|
|
u2_noun
|
|
u2_cqfu_tock(u2_noun van,
|
|
u2_noun sut,
|
|
u2_noun peh,
|
|
u2_noun mur,
|
|
u2_noun men)
|
|
{
|
|
return _cqfu_tock(van, sut, peh, mur, men);
|
|
}
|