changes

luprex/core/lua/uglyglobals.lua

@@ -27,3 +27,24 @@ function login.cb_uglytimedaemon()
   end
 
 function time() return ug.get('time') end
+
+function isa(k1,k2)
+  if k1==k2  then return true  end
+  if k1==nil then return false end
+  local mt=getmetatable(k1)
+  if not mt then return false end
+  return isa(mt.__index,k2)
+  end
+
+function tabcat(t1,t2)
+  for i=1,#t2 do t1[#t1+1]=t2[i] end
+  end
+
+function multistart(filter,closure)
+  local lis=tangible.scan('nowhere',0,0,1000000000,false)
+  lis=tabcat(lis,tangible.scan('main',0,0,1000000000,true)
+  for _,t in iparis(lis) do if filter(t) then closure(t) end end
+  end
+
+
+