summaryrefslogtreecommitdiff
path: root/vere/pkg/noun/jets/e/tape.c
diff options
context:
space:
mode:
authorpolwex <polwex@sortug.com>2025-10-05 21:56:51 +0700
committerpolwex <polwex@sortug.com>2025-10-05 21:56:51 +0700
commitfcedfddf00b3f994e4f4e40332ac7fc192c63244 (patch)
tree51d38e62c7bdfcc5f9a5e9435fe820c93cfc9a3d /vere/pkg/noun/jets/e/tape.c
claude is gud
Diffstat (limited to 'vere/pkg/noun/jets/e/tape.c')
-rw-r--r--vere/pkg/noun/jets/e/tape.c53
1 files changed, 53 insertions, 0 deletions
diff --git a/vere/pkg/noun/jets/e/tape.c b/vere/pkg/noun/jets/e/tape.c
new file mode 100644
index 0000000..4d251b6
--- /dev/null
+++ b/vere/pkg/noun/jets/e/tape.c
@@ -0,0 +1,53 @@
+/// @file
+
+#include "jets/q.h"
+#include "jets/w.h"
+
+#include "noun.h"
+
+
+ static u3_noun
+ _norm(u3_noun a)
+ {
+ if ( c3n == u3du(a) ) {
+ return u3_nul;
+ } else {
+ return u3nc(((c3y == u3du(u3h(a))) ? u3_nul : u3k(u3h(a))),
+ _norm(u3t(a)));
+ }
+ }
+
+ static u3_noun
+ _good(u3_noun a)
+ {
+ while ( 1 ) {
+ if ( u3_nul == a ) {
+ return c3y;
+ }
+ if ( c3n == u3ud(u3h(a)) ) {
+ return c3n;
+ }
+ a = u3t(a);
+ }
+ }
+
+ u3_noun
+ u3qe_tape(u3_noun a)
+ {
+ if ( c3y == _good(a) ) {
+ return u3k(a);
+ } else {
+ return _norm(a);
+ }
+ }
+ u3_noun
+ u3we_tape(u3_noun cor)
+ {
+ u3_noun a;
+
+ if ( (u3_none == (a = u3r_at(u3x_sam, cor))) ) {
+ return u3m_bail(c3__fail);
+ } else {
+ return u3qe_tape(a);
+ }
+ }