1 files changed, 73 insertions, 0 deletions
diff --git a/diller/inter.lua b/diller/inter.lua
new file mode 100644
index 0000000..725edbd
--- /dev/null
+++ b/diller/inter.lua
@@ -0,0 +1,73 @@
+local P = {}
+
+function P.parse(line)
+  -- print("inter_parse: line="..line)
+
+  line = string.sub(line, 1, string.find(line, "\r"))
+  line = line:gsub("%s+", "")
+
+  local args = {}
+  local i = string.find(line, " ")
+  if not i then
+--    print("inter_parse: invalid line: no command, line="..line)
+	return string.len(line) > 0 and line or nil, args
+  end
+  local cmd = string.sub(line, 1, i - 1)
+  -- print("inter_parse: cmd="..cmd)
+
+  local last = i + 1
+  while i do
+    local key
+    local value
+
+    i = string.find(line, " ", last)
+    arg = string.sub(line, last, i)
+    arg = arg:gsub("%s+", "")
+
+    if #arg > 0 then
+--      print("inter_parse: arg: "..arg)
+      j = string.find(arg, "=")
+      if not j then
+        if #arg > 0 then
+          key = arg
+          args[key] = true
+--          print("inter_parse: key="..key.."=true")
+        end
+      else
+        key = string.sub(arg, 1, j-1)
+        value = string.sub(arg, j+1)
+		args[key] = value
+--        print("inter_parse: key="..key..", value="..value)
+      end
+    end
+
+    if not i then
+      break
+    end
+    last = i + 1
+  end
+
+  return cmd, args
+end
+
+local cb
+function inter_on_line(line)
+--  print("line:"..line)
+
+  local cmd, args = P.parse(line)
+  if not cmd then
+    return
+  end
+
+  if cb then
+    cb(cmd, args)
+  end
+end
+
+function P.init(callback)
+  cb = callback
+
+  uart.on("data", "\r", inter_on_line, 0)
+end
+
+return P