1 files changed, 48 insertions, 0 deletions
diff --git a/challenge-207/roger-bell-west/lua/ch-1.lua b/challenge-207/roger-bell-west/lua/ch-1.lua
new file mode 100755
index 0000000000..375300a8b9
--- /dev/null
+++ b/challenge-207/roger-bell-west/lua/ch-1.lua
@@ -0,0 +1,48 @@
+#! /usr/bin/lua
+
+-- by Michael Anderson at
+-- https://stackoverflow.com/questions/8722620/comparing-two-index-tables-by-index-value-in-lua
+function recursive_compare(t1,t2)
+   if t1==t2 then return true end
+   if (type(t1)~="table") then return false end
+   local mt1 = getmetatable(t1)
+   local mt2 = getmetatable(t2)
+   if( not recursive_compare(mt1,mt2) ) then return false end
+   for k1,v1 in pairs(t1) do
+      local v2 = t2[k1]
+      if( not recursive_compare(v1,v2) ) then return false end
+   end
+   for k2,v2 in pairs(t2) do
+      local v1 = t1[k2]
+      if( not recursive_compare(v1,v2) ) then return false end
+   end
+   return true
+end
+
+function keyboardword(wl)
+   local out = {}
+   for i, w in ipairs(wl) do
+      local wx = string.lower(w)
+      if string.match(wx, "^[qwertyuiop]+$") or
+         string.match(wx, "^[asdfghjkl]+$") or
+         string.match(wx, "^[zxcvbnm]+$") then
+         table.insert(out, w)
+      end
+   end
+   return out
+end
+
+if recursive_compare(keyboardword({"Hello", "Alaska", "Dad", "Peace"}), {"Alaska", "Dad"}) then
+  io.write("Pass")
+else
+  io.write("FAIL")
+end
+io.write(" ")
+
+if recursive_compare(keyboardword({"OMG", "Bye"}), {}) then
+  io.write("Pass")
+else
+  io.write("FAIL")
+end
+print("")
+