1 files changed, 32 insertions, 0 deletions
diff --git a/challenge-067/stuart-little/lua/ch-2.lua b/challenge-067/stuart-little/lua/ch-2.lua
new file mode 100755
index 0000000000..21a29b011e
--- /dev/null
+++ b/challenge-067/stuart-little/lua/ch-2.lua
@@ -0,0 +1,32 @@
+#!/usr/bin/env lua
+
+-- run <script> <number>
+
+local dict={
+   [0]="0",
+   "_@",
+   "abc",
+   "def",
+   "ghi",
+   "jkl",
+   "mno",
+   "pqrs",
+   "tuv",
+   "wxyz"
+}
+
+function poss(dict,w)
+   if w:len()==0 then return {""} end
+   local prev=poss(dict,w:sub(1,-2))
+   local out={}
+   for _,wrd in ipairs(prev) do
+      for i=1,string.len(dict[tonumber(w:sub(-1))]) do
+	 table.insert(out,wrd..dict[tonumber(w:sub(-1))]:sub(i,i))
+      end
+   end
+   return out
+end
+
+for _,w in ipairs(poss(dict,arg[1])) do
+   print(w)
+end