urbit/j/f/ut_fink.c
2014-11-17 13:56:51 -08:00

80 lines
1.7 KiB
C

/* j/6/fink.c
**
** This file is in the public domain.
*/
#include "all.h"
/* logic
*/
u3_noun
_cqfu_fink(
u3_noun van,
u3_noun sut,
u3_noun dep,
u3_noun way,
u3_noun cog)
{
// u3_noun dun = u3qfu_dunq(van, "type", sut);
u3_noun nuc = (u3_blip == cog)
? u3qfu_shew
(van,
u3nc
(u3nc('c', u3i_string("find-limb")),
'$'))
: u3qfu_shep
(van, "find-limb", 'a', u3k(cog));
u3_noun pro;
// u3t_push(u3nc(c3__mean, dun));
u3t_push(u3nc(c3__mean, nuc));
{
u3_noun hoq = u3qfu_find(van, sut, dep, way, cog);
u3_noun fin = u3t(hoq);
if ( u3_nul == fin ) {
u3m_p("cog", cog);
return u3m_error("find-none");
}
else {
pro = u3k(u3t(fin));
u3z(hoq);
}
}
// u3t_drop();
u3t_drop();
return pro;
}
/* boilerplate
*/
u3_noun
u3wfu_fink(u3_noun cor)
{
u3_noun sut, dep, way, cog, van;
if ( (c3n == u3r_mean(cor, u3x_sam_2, &dep,
u3x_sam_6, &way,
u3x_sam_7, &cog,
u3x_con, &van,
0)) ||
(u3_none == (sut = u3r_at(u3x_sam, van))) )
{
return u3m_bail(c3__fail);
} else {
return _cqfu_fink(van, sut, dep, way, cog);
}
}
u3_noun
u3qfu_fink(
u3_noun van,
u3_noun sut,
u3_noun dep,
u3_noun way,
u3_noun cog)
{
return _cqfu_fink(van, sut, dep, way, cog);
}