implement most for string/list, and reverse/last for string

1 files changed, 8 insertions, 0 deletions

diff --git a/neb/std/lists.py b/neb/std/lists.py
index 9335c3d..ae5e56c 100644
--- a/neb/std/lists.py
+++ b/neb/std/lists.py
@@ -185,3 +185,11 @@ prepend_func = Builtin("prepend", interpretPrepend, [Arg("list", TypeEnum.LIST),
 prepend_multi = MultiFunction("prepend")
 prepend_multi.register(prepend_func)
 LISTS.register("prepend", prepend_multi)
+
+def interpretListMost(symbol, args, env, ns):
+    return List(args[0].args[:-1])
+
+most_func = Builtin("most", interpretListMost, [Arg("list", TypeEnum.LIST)], return_type=Type(":list"))
+most_multi = MultiFunction("most")
+most_multi.register(most_func)
+LISTS.register("most", most_multi)