---[[
-function urldecode(str)
- str = str:gsub("+", " ")
- str = str:gsub("%%(%x%x)",
- function(h) return string.char(tonumber(h,16)) end)
- str = str:gsub("\r\n", "\n")
- return str
-end
-
-function urlencode(str)
- str = str:gsub("\n", "\r\n")
- str = str:gsub("([^%w ])",
- function (c) return string.format ("%%%02X", string.byte(c)) end)
- str = str:gsub(" ", "+")
- return str
-end
-]]--
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