mirror of
https://github.com/ilyakooo0/urbit.git
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61 lines
1.2 KiB
C
61 lines
1.2 KiB
C
/* j/6/swab.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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/* internals
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*/
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/* functions
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*/
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u3_noun
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_cqfu_snub(u3_noun van,
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u3_noun sut,
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u3_noun har)
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{
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if ( u3_no == u3du(har) ) {
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return u3_nul;
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} else {
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u3_noun i_har = u3h(har);
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u3_noun t_har = u3t(har);
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u3_noun pi_har = u3h(i_har);
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u3_noun qi_har = u3t(i_har);
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u3_noun peh = u3_cqb_flop(pi_har);
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u3_noun ret = u3nc(u3nc(peh, u3k(qi_har)),
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_cqfu_snub
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(van, sut, t_har));
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return ret;
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}
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}
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/* boilerplate
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*/
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u3_noun
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u3_cwfu_snub(
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u3_noun cor)
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{
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u3_noun van, sut, har;
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if ( (u3_no == u3_cr_mean(cor, u3_cv_sam, &har,
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u3_cv_con, &van,
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0)) ||
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(u3_none == (sut = u3_cr_at(u3_cv_sam, van))) )
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{
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return u3_cm_bail(c3__fail);
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} else {
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return _cqfu_snub(van, sut, har);
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}
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}
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u3_noun
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u3_cqfu_snub(u3_noun van,
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u3_noun sut,
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u3_noun har)
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{
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return _cqfu_snub(van, sut, har);
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}
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