1 files changed, 53 insertions, 0 deletions
diff --git a/vere/pkg/noun/jets/b/scag.c b/vere/pkg/noun/jets/b/scag.c
new file mode 100644
index 0000000..d13dd46
--- /dev/null
+++ b/vere/pkg/noun/jets/b/scag.c
@@ -0,0 +1,53 @@
+/// @file
+
+#include "jets/q.h"
+#include "jets/w.h"
+
+#include "noun.h"
+
+u3_noun
+u3qb_scag(u3_atom a, u3_noun b)
+{
+  if ( u3_nul == b ) {
+    return u3_nul;
+  }
+  else if ( !_(u3a_is_cat(a)) ) {
+    return u3m_bail(c3__fail);
+  }
+  else {
+    u3_noun  pro;
+    u3_noun* lit = &pro;
+
+    {
+      c3_w   len_w = (c3_w)a;
+      u3_noun* hed;
+      u3_noun* tel;
+      u3_noun i, t = b;
+
+      while ( len_w-- && (u3_nul != t) ) {
+        u3x_cell(t, &i, &t);
+
+        *lit = u3i_defcons(&hed, &tel);
+        *hed = u3k(i);
+        lit  = tel;
+      }
+    }
+
+    *lit = u3_nul;
+
+    return pro;
+  }
+}
+
+u3_noun
+u3wb_scag(u3_noun cor)
+{
+  u3_noun a, b;
+  u3x_mean(cor, u3x_sam_2, &a, u3x_sam_3, &b, 0);
+
+  if ( (c3n == u3ud(a)) && (u3_nul != b) ) {
+    return u3m_bail(c3__exit);
+  }
+
+  return u3qb_scag(a, b);
+}