From 4bab8348d2842245d93833a80f0d4713f973069c Mon Sep 17 00:00:00 2001
From: Martin Peach <mrpeach@users.sourceforge.net>
Date: Fri, 20 Apr 2012 19:03:21 +0000
Subject: Two objects to serialize symbols and floats.

svn path=/trunk/externals/loaders/pdlua/; revision=16129
---
 examples/lsymbol2bytes.pd_lua | 46 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 examples/lsymbol2bytes.pd_lua

(limited to 'examples/lsymbol2bytes.pd_lua')

diff --git a/examples/lsymbol2bytes.pd_lua b/examples/lsymbol2bytes.pd_lua
new file mode 100644
index 0000000..d024072
--- /dev/null
+++ b/examples/lsymbol2bytes.pd_lua
@@ -0,0 +1,46 @@
+--[[ 
+  lsymbol2bytes
+  Output a symbol as a sequence of bytes
+  author Martin Peach 20120420
+--]]
+
+-- Pd class
+
+local Lsymbol2Bytes = pd.Class:new():register("lsymbol2bytes")
+
+function Lsymbol2Bytes:initialize(name, atoms)
+  self.inlets = 1
+  self.outlets = 1
+  return true
+end
+
+-- Lsymbol2Bytes:drip: output possibly multibyte characters from buf and output them as floats on [0..255]
+function Lsymbol2Bytes:drip(buf)
+  --pd.post(buf.. " size " .. #buf)
+  local i = 1, b
+  local len = #buf
+
+  for i = 1, len do
+    self:outlet(1, "float", {string.byte(buf, i)})
+  end
+end
+
+function Lsymbol2Bytes: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
+  local buf
+  if sel == "symbol" then -- the usual case
+    buf = tostring(atoms[1])
+    self:drip(buf)
+  elseif #atoms == 0 then -- a selector
+    buf = tostring(sel)
+    self:drip(buf)
+  else -- reject non-symbols
+    self:error("lsymbol2bytes: input not a symbol")
+  end
+end
+-- end of lsymbol2bytes
+
-- 
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