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56 lines
883 B
C
56 lines
883 B
C
/* j/4/in_tap.c
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**
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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 u3_noun
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_tap_in(u3_noun a,
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u3_noun b)
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{
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if ( u3_nul == a ) {
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return b;
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} else {
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u3_noun l_a, n_a, r_a;
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if ( (c3n == u3r_trel(a, &n_a, &l_a, &r_a)) ) {
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u3z(b);
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return u3m_bail(c3__exit);
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} else {
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return _tap_in(r_a,
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u3nc(u3k(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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u3_noun
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u3qdi_tap(u3_noun a)
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{
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return _tap_in(a, u3_nul);
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}
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u3_noun
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u3wdi_tap(u3_noun cor)
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{
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u3_noun a;
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if ( c3n == u3r_mean(cor, u3x_con_sam, &a, 0) ) {
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return u3m_bail(c3__exit);
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} else {
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return u3qdi_tap(a);
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}
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}
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u3_noun
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u3kdi_tap(u3_noun a)
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{
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u3_weak b = u3qdi_tap(a);
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u3z(a);
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if ( u3_none == b ) {
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return u3m_bail(c3__exit);
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}
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else return b;
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}
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