From fcedfddf00b3f994e4f4e40332ac7fc192c63244 Mon Sep 17 00:00:00 2001
From: polwex <polwex@sortug.com>
Date: Sun, 5 Oct 2025 21:56:51 +0700
Subject: claude is gud

---
 vere/pkg/noun/jets/d/in_uni.c | 98 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 98 insertions(+)
 create mode 100644 vere/pkg/noun/jets/d/in_uni.c

(limited to 'vere/pkg/noun/jets/d/in_uni.c')

diff --git a/vere/pkg/noun/jets/d/in_uni.c b/vere/pkg/noun/jets/d/in_uni.c
new file mode 100644
index 0000000..504ddcb
--- /dev/null
+++ b/vere/pkg/noun/jets/d/in_uni.c
@@ -0,0 +1,98 @@
+/// @file
+
+#include "jets/k.h"
+#include "jets/q.h"
+#include "jets/w.h"
+
+#include "noun.h"
+
+/* internal functions
+*/
+static u3_noun
+_in_uni(u3_noun a, u3_noun b)
+{
+  if ( u3_nul == a ) {
+    return u3k(b);
+  }
+  else if ( u3_nul == b ) {
+    return u3k(a);
+  }
+  else {
+    u3_noun n_a, l_a, r_a,
+            n_b, l_b, r_b,
+            neb, sub, naw, pro;
+    u3x_trel(a, &n_a, &l_a, &r_a);
+    u3x_trel(b, &n_b, &l_b, &r_b);
+
+    if ( c3n == u3qc_mor(n_a, n_b) ) {
+      if ( c3y == u3r_sing(n_a, n_b) ) {
+        return u3nt(u3k(n_b), _in_uni(l_a, l_b), _in_uni(r_a, r_b));
+      }
+      else if ( c3y == u3qc_gor(n_a, n_b) ) {
+        naw = u3nt(u3k(n_a), u3k(l_a), u3_nul);
+        sub = _in_uni(naw, l_b);
+        neb = u3nt(u3k(n_b), sub, u3k(r_b));
+        pro = _in_uni(r_a, neb);
+        u3z(naw); u3z(neb);
+        return pro;
+      }
+      else {
+        naw = u3nt(u3k(n_a), u3_nul, u3k(r_a));
+        sub = _in_uni(naw, r_b);
+        neb = u3nt(u3k(n_b), u3k(l_b),  sub);
+        pro = _in_uni(l_a, neb);
+        u3z(naw); u3z(neb);
+        return pro;
+      }
+    }
+    else if ( c3y == u3r_sing(n_b, n_a) ) {
+      return u3nt(u3k(n_b), _in_uni(l_a, l_b), _in_uni(r_a, r_b));
+    }
+    else if ( c3y == u3qc_gor(n_b, n_a) ) {
+      neb = u3nt(u3k(n_b), u3k(l_b), u3_nul);
+      sub = _in_uni(l_a, neb);
+      naw = u3nt(u3k(n_a), sub, u3k(r_a));
+      pro = _in_uni(naw, r_b);
+      u3z(neb); u3z(naw);
+      return pro;
+    }
+    else {
+      neb = u3nt(u3k(n_b), u3_nul, u3k(r_b));
+      sub = _in_uni(r_a, neb);
+      naw = u3nt(u3k(n_a), u3k(l_a), sub);
+      pro = _in_uni(naw, l_b);
+      u3z(neb); u3z(naw);
+      return pro;
+    }
+  }
+}
+
+u3_noun
+u3kdi_uni(u3_noun a,
+          u3_noun b)
+{
+  u3_noun c = u3qdi_uni(a, b);
+  u3z(a); u3z(b);
+  return c;
+}
+
+u3_noun
+u3qdi_uni(u3_noun a,
+          u3_noun b)
+{
+  if ( c3y == u3r_sing(a, b) ) {
+    return u3k(a);
+  }
+  else {
+    return _in_uni(a, b);
+  }
+}
+
+u3_noun
+u3wdi_uni(u3_noun cor)
+{
+  u3_noun a, b;
+  u3x_mean(cor, u3x_sam, &b, u3x_con_sam, &a, 0);
+  return u3qdi_uni(a, b);
+}
+
-- 
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