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- local function encode (str)
- str = string.gsub (str, "([^0-9a-zA-Z !'()*._~-])", -- locale independent
- function (c) return string.format ("%%%02X", string.byte(c)) end)
- str = string.gsub (str, " ", "%%20")
- return str
- end
- local function decode (str)
- str = string.gsub (str, "%%20", " ")
- str = string.gsub (str, "%%(%x%x)", function(h) return string.char(tonumber(h,16)) end)
- return str
- end
- return {
- encode = encode,
- decode = decode
- }
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