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51 lines
900 B
C
51 lines
900 B
C
/* j/4/in_tap.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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static u2_noun
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_tap_in(
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u2_noun a,
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u2_noun b)
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{
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if ( u2_nul == a ) {
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return b;
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} else {
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u2_noun l_a, n_a, r_a;
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if ( (u2_no == u2_cr_trel(a, &n_a, &l_a, &r_a)) ) {
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u2z(b);
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return u2_cm_bail(c3__exit);
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} else {
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return _tap_in
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(r_a,
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u2nc(u2k(n_a),
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_tap_in(l_a, b)));
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}
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}
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}
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u2_noun
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u2_cqdi_tap(
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u2_noun a,
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u2_noun b)
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{
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return _tap_in(a, u2k(b));
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}
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u2_noun
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u2_cwdi_tap(
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u2_noun cor)
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{
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u2_noun a, b;
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if ( u2_no == u2_cr_mean(cor, u2_cv_sam, &b, u2_cv_con_sam, &a, 0) ) {
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return u2_cm_bail(c3__exit);
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} else {
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return u2_cqdi_tap(a, b);
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}
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}
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