begin astal rewrite in lua; implement workspace widget in statusbar

lua/lib/init.lua

@@ -0,0 +1,23 @@
+local M = {}
+
+function M.map(tbl, f)
+    local t = {}
+    for k,v in pairs(tbl) do
+        t[k] = f(v)
+    end
+    return t
+end
+
+function M.sequence(start, stop)
+    local t = {}
+    for i=start,stop do
+        table.insert(t, i)
+    end
+    return t
+end
+
+function ternary(cond, t, f)
+    if cond then return t else return f end
+end
+
+return M