shrub/gen164/6/ut_fish.c

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/* j/6/fish.c
**
** This file is in the public domain.
*/
#include "all.h"
#include "../pit.h"
/* functions
*/
static u2_noun
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_fish_in(
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u2_noun van,
u2_noun sut,
u2_atom axe,
u2_noun vit)
{
u2_noun p_sut, q_sut;
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if ( u2_yes == u2ud(sut) ) switch ( sut ) {
default: return u2_cm_bail(c3__fail);
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case c3__noun: {
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return u2nc(1, 0);
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}
case c3__void: {
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return u2nc(1, 1);
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}
}
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else switch ( u2h(sut) ) {
default: return u2_cm_bail(c3__fail);
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case c3__atom: {
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u2_noun ton = u2nt(3, 0, u2k(axe));
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u2_noun pro = u2_cqf_flip(ton);
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u2z(ton);
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return pro;
}
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case c3__bull: {
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return u2_cm_error("bull-fish");
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}
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case c3__cell: {
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if ( (u2_no == u2_cr_trel(sut, 0, &p_sut, &q_sut)) ) {
return u2_cm_bail(c3__fail);
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} else {
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u2_noun hut = u2nt(3, 0, u2k(axe));
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u2_noun lef = u2_cqc_peg(axe, 2);
u2_noun rit = u2_cqc_peg(axe, 3);
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u2_noun hed = _fish_in(van, p_sut, lef, vit);
u2_noun tal = _fish_in(van, q_sut, rit, vit);
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u2_noun hob = u2_cqf_flan(hed, tal);
u2_noun vug = u2_cqf_flan(hut, hob);
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u2z(hob);
u2z(tal);
u2z(hed);
u2z(rit);
u2z(lef);
u2z(hut);
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return vug;
}
}
case c3__core: {
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return u2nc(0, 0);
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}
case c3__cube: {
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if ( (u2_no == u2_cr_trel(sut, 0, &p_sut, &q_sut)) ) {
return u2_cm_bail(c3__fail);
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} else {
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return u2nt
(5,
u2nc(1, u2k(p_sut)),
u2nc(0, u2k(axe)));
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}
}
case c3__face: {
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if ( (u2_no == u2_cr_trel(sut, 0, &p_sut, &q_sut)) ) {
return u2_cm_bail(c3__fail);
} else {
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return _fish_in(van, q_sut, axe, vit);
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}
}
case c3__fork: {
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if ( (u2_no == u2_cr_trel(sut, 0, &p_sut, &q_sut)) ) {
return u2_cm_bail(c3__fail);
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}
else {
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u2_noun hed = _fish_in(van, p_sut, axe, vit);
u2_noun tal = _fish_in(van, q_sut, axe, vit);
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u2_noun pro = u2_cqf_flor(hed, tal);
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u2z(hed);
u2z(tal);
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return pro;
}
}
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case c3__hold: {
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p_sut = u2t(sut);
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{
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if ( (u2_yes == u2_cqdi_has(vit, sut)) ) {
// u2_noun dun = u2_cqfu_dunq(van, "type", sut);
u2_noun niz = u2_cqfu_shep
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(van, "axis", 'd', u2k(axe));
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// u2_ct_push(u2nc(c3__mean, dun));
u2_ct_push(u2nc(c3__mean, niz));
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return u2_cm_error("fish-loop");
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} else {
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u2_noun zoc = u2_cqdi_put(vit, sut);
u2_noun fop = u2_cqfu_rest(van, sut, p_sut);
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u2_noun pro = _fish_in(van, fop, axe, zoc);
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u2z(fop);
u2z(zoc);
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return pro;
}
}
}
}
}
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u2_noun
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_cqfu_fish(
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u2_noun van,
u2_noun sut,
u2_atom axe)
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{
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return _fish_in(van, sut, axe, u2_nul);
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}
/* boilerplate
*/
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u2_noun
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u2_cwfu_fish(
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u2_noun cor)
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{
u2_noun sut, axe, van;
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if ( (u2_no == u2_cr_mean(cor, u2_cv_sam, &axe, u2_cv_con, &van, 0)) ||
(u2_no == u2ud(axe)) ||
(u2_none == (sut = u2_cr_at(u2_cv_sam, van))) )
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{
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return u2_cm_bail(c3__fail);
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} else {
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return _cqfu_fish(van, sut, axe);
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}
}
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u2_noun
u2_cqfu_fish(u2_noun van,
u2_noun sut,
u2_noun axe)
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{
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c3_m fun_m = c3__fish;
u2_noun pro = u2_cz_find_2(fun_m, sut, axe);
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if ( u2_none != pro ) {
return pro;
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}
else {
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pro = _cqfu_fish(van, sut, axe);
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return u2_cz_save_2(fun_m, sut, axe, pro);
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}
}