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-rw-r--r--examples/llist-rdrip.pd_lua39
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+--[[
+ llist-rdrip
+ Output a list as a sequence of elements in reverse order
+ author Martin Peach 20120419
+--]]
+
+-- Pd class
+
+local LlistRdrip = pd.Class:new():register("llist-rdrip")
+local selectormap = {string = "symbol", number="float", userdata="pointer"} -- for lua/Pd type conversion
+
+function LlistRdrip:initialize(name, atoms)
+ self.inlets = 1
+ self.outlets = 1
+ return true
+end
+
+function LlistRdrip:in_1(sel, atoms) -- anything
+ --pd.post("sel is " .. sel);
+ --pd.post("number of atoms is ".. #atoms)
+ --for i,v in ipairs(atoms) do
+ -- pd.post(i .. " = " .. v)
+ --end
+ if sel == "list" then -- the usual case
+ for i = #atoms, 1, -1 do
+ -- map lua types to pd selectors
+ self:outlet(1, selectormap[type(atoms[i])], {atoms[i]})
+ end
+ elseif sel == "float" or sel == "symbol" or sel == "pointer" or sel == "bang" then -- single element "lists"
+ self:outlet(1, sel, {atoms[1]})
+ else -- messages are lists beginning with a selector
+ self:outlet(1, selectormap[type(sel)], {sel})
+ for i = #atoms , 1 , -1 do
+ self:outlet(1, selectormap[type(atoms[i])], {atoms[i]})
+ end
+ end
+end
+-- end of llist-rdrip
+