mirror of
https://github.com/urbit/shrub.git
synced 2024-12-16 23:04:16 +03:00
56 lines
1.1 KiB
C
56 lines
1.1 KiB
C
/* j/6/ut_perk.c
|
|
**
|
|
*/
|
|
#include "all.h"
|
|
|
|
|
|
/* logic
|
|
*/
|
|
u3_noun
|
|
_cqfu_perk(u3_noun van,
|
|
u3_noun sut,
|
|
u3_noun way,
|
|
u3_noun met)
|
|
{
|
|
if ( c3__gold == met ) {
|
|
return u3nc(c3y, c3y);
|
|
}
|
|
else switch ( way ) {
|
|
default: return u3m_bail(c3__fail);
|
|
|
|
case c3__both: return u3nc(c3n, c3n);
|
|
case c3__free: return u3nc(c3y, c3y);
|
|
case c3__read: return u3nc(((met == c3__zinc) ? c3y : c3n), c3n);
|
|
case c3__rite: return u3nc(((met == c3__iron) ? c3y : c3n), c3n);
|
|
}
|
|
}
|
|
|
|
/* boilerplate
|
|
*/
|
|
u3_noun
|
|
u3wfu_perk(u3_noun cor)
|
|
{
|
|
u3_noun sut, way, met, van;
|
|
|
|
if ( (c3n == u3r_mean(cor, u3x_sam_2, &way,
|
|
u3x_sam_3, &met,
|
|
u3x_con, &van,
|
|
0)) ||
|
|
(u3_none == (sut = u3r_at(u3x_sam, van))) )
|
|
{
|
|
return u3m_bail(c3__fail);
|
|
} else {
|
|
return _cqfu_perk(van, sut, way, met);
|
|
}
|
|
}
|
|
|
|
u3_noun
|
|
u3qfu_perk(u3_noun van,
|
|
u3_noun sut,
|
|
u3_noun way,
|
|
u3_noun met)
|
|
{
|
|
return _cqfu_perk(van, sut, way, met);
|
|
}
|
|
|