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120 lines
2.7 KiB
C
120 lines
2.7 KiB
C
/* j/4/put.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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u3_noun
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u3qdb_put(
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u3_noun a,
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u3_noun b,
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u3_noun c)
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{
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if ( u3_nul == a ) {
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return u3nt(
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u3nc(u3k(b),
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u3k(c)),
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u3_nul,
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u3_nul);
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}
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else {
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u3_noun l_a, n_a, r_a, pn_a, qn_a;
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u3_noun d, l_d, n_d, r_d;
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if ( (c3n == u3r_trel(a, &n_a, &l_a, &r_a)) ||
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(c3n == u3r_cell(n_a, &pn_a, &qn_a)) )
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{
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return u3m_bail(c3__exit);
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}
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else if ( c3y == u3r_sing(pn_a, b) ) {
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if ( c3y == u3r_sing(qn_a, c) ) {
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return u3k(a);
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} else {
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return u3nt
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(u3nc(u3k(b), u3k(c)),
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u3k(l_a),
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u3k(r_a));
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}
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}
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else {
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if ( c3y == u3qc_gor(b, pn_a) ) {
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d = u3qdb_put(l_a, b, c);
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if ( c3y == u3qc_vor(pn_a, u3h(u3h(d))) ) {
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return u3nt(u3k(n_a),
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d,
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u3k(r_a));
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}
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else {
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u3r_trel(d, &n_d, &l_d, &r_d);
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{
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u3_noun e = u3nt
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(u3k(n_d),
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u3k(l_d),
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u3nt(
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u3k(n_a),
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u3k(r_d),
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u3k(r_a)));
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u3z(d);
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return e;
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}
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}
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}
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else {
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d = u3qdb_put(r_a, b, c);
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if ( c3y == u3qc_vor(pn_a, u3h(u3h(d))) ) {
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return u3nt(u3k(n_a),
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u3k(l_a),
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d);
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}
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else {
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u3r_trel(d, &n_d, &l_d, &r_d);
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{
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u3_noun e = u3nt
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(u3k(n_d),
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u3nt(
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u3k(n_a),
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u3k(l_a),
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u3k(l_d)),
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u3k(r_d));
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u3z(d);
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return e;
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}
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}
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}
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}
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}
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}
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u3_noun
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u3wdb_put(
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u3_noun cor)
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{
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u3_noun a, b, c;
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if ( c3n == u3r_mean(cor, u3x_sam_2, &b,
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u3x_sam_3, &c,
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u3x_con_sam, &a, 0) ) {
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return u3m_bail(c3__exit);
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} else {
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return u3qdb_put(a, b, c);
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}
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}
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u3_weak
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u3kdb_put(u3_noun a, u3_noun b, u3_noun c)
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{
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// Bizarre asymmetry in old jets.
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//
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// (Mysterious comment in old glue code.)
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//
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u3_noun pro = u3qdb_put(a, b, c);
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u3z(a); u3z(b); u3z(c);
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return pro;
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}
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