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46 lines
860 B
C
46 lines
860 B
C
/* j/2/skip.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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/* functions
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*/
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u3_noun
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u3_cqb_skip(
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u3_noun a,
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u3_noun b)
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{
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if ( 0 == a ) {
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return a;
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}
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else if ( u3_no == u3du(a) ) {
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return u3_none;
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} else {
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u3_noun hoz = u3_cn_slam_on(u3k(b), u3k(u3h(a)));
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u3_noun vyr = u3_cqb_skip(u3t(a), b);
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switch ( hoz ) {
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case u3_yes: return vyr;
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case u3_no: return u3nc(u3k(u3h(a)), vyr);
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default: u3z(hoz);
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u3z(vyr);
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return u3_none;
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}
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}
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}
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u3_noun
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u3_cwb_skip(
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u3_noun cor)
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{
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u3_noun a, b;
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if ( u3_no == u3_cr_mean(cor, u3_cv_sam_2, &a, u3_cv_sam_3, &b, 0) ) {
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return u3_none;
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} else {
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return u3_cqb_skip(a, b);
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}
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}
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