2013-09-29 00:21:18 +04:00
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/* j/6/ut_repo.c
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**
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** This file is in the public domain.
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*/
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#include "all.h"
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#include "../pit.h"
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/* logic
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*/
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u2_noun // transfer
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2014-09-03 07:36:29 +04:00
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u2_cqfu_repo(
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2013-09-29 00:21:18 +04:00
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u2_noun van, // retain
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u2_noun sut) // retain
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{
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2013-12-26 21:12:07 +04:00
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u2_noun p_sut, q_sut;
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2013-09-29 00:21:18 +04:00
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2014-08-21 01:18:34 +04:00
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if ( u2_no == u2du(sut) ) switch ( sut ) {
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default: return u2k(sut);
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2013-09-29 00:21:18 +04:00
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2014-04-22 05:22:11 +04:00
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case c3__noun:
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2014-08-21 01:18:34 +04:00
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return u2nt(c3__fork,
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u2nc(c3__atom, u2_blip),
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u2nt(c3__cell, c3__noun, c3__noun));
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2013-09-29 00:21:18 +04:00
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}
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2014-08-21 01:18:34 +04:00
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else switch ( u2h(sut) ) {
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2013-09-29 00:21:18 +04:00
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default: {
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2014-08-21 01:18:34 +04:00
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return u2_cm_error("repo-flat");
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2013-09-29 00:21:18 +04:00
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}
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2013-12-26 21:12:07 +04:00
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case c3__bull: {
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2014-08-21 01:18:34 +04:00
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if ( u2_no == u2_cr_cell(u2t(sut), &p_sut, &q_sut)) {
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return u2_cm_bail(c3__fail);
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2013-12-26 21:12:07 +04:00
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} else {
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2014-08-21 01:18:34 +04:00
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return u2k(q_sut);
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2013-12-26 21:12:07 +04:00
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}
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}
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2013-09-29 00:21:18 +04:00
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case c3__core: {
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2014-08-21 01:18:34 +04:00
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if ( u2_no == u2_cr_cell(u2t(sut), &p_sut, &q_sut) ) {
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return u2_cm_bail(c3__fail);
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2013-09-29 00:21:18 +04:00
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} else {
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2014-08-21 01:18:34 +04:00
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return u2nt(c3__cell, c3__noun, u2k(p_sut));
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2013-09-29 00:21:18 +04:00
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}
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}
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case c3__cube: {
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2014-08-21 01:18:34 +04:00
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if ( u2_no == u2_cr_cell(u2t(sut), &p_sut, &q_sut)) {
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return u2_cm_bail(c3__fail);
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2013-09-29 00:21:18 +04:00
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} else {
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2014-08-21 01:18:34 +04:00
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return u2k(q_sut);
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2013-09-29 00:21:18 +04:00
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}
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}
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case c3__face: {
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2014-08-21 01:18:34 +04:00
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if ( u2_no == u2_cr_cell(u2t(sut), &p_sut, &q_sut)) {
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return u2_cm_bail(c3__fail);
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2013-09-29 00:21:18 +04:00
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} else {
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2014-08-21 01:18:34 +04:00
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return u2k(q_sut);
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2013-09-29 00:21:18 +04:00
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}
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}
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case c3__hold: {
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2014-08-21 01:18:34 +04:00
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p_sut = u2t(sut);
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2014-09-03 07:36:29 +04:00
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return u2_cqfu_rest(van, sut, p_sut);
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2013-09-29 00:21:18 +04:00
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}
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}
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}
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u2_noun // transfer
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2014-09-03 09:46:55 +04:00
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u2_cwfu_repo(
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2013-09-29 00:21:18 +04:00
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u2_noun cor) // retain
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{
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u2_noun sut;
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2014-08-21 01:18:34 +04:00
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if ( u2_none == (sut = u2_cr_at(u2_cv_sam, cor)) ) {
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return u2_cm_bail(c3__fail);
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2013-09-29 00:21:18 +04:00
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} else {
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2014-09-03 07:36:29 +04:00
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return u2_cqfu_repo(cor, sut);
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2013-09-29 00:21:18 +04:00
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}
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}
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