How to replace?

[admin]

Try this. The example has the layout array encoded as a JSON string for some reason. It might be an error in the documentation. If it's not then uncomment line 42 and remove line 43.

Code:

chars =  {
  [0] = " ", [1] = "A", [2] = "B", [3] = "C", [4] = "D", [5] = "E",
  [6] = "F", [7] = "G", [8] = "H", [9] = "I", [10] = "J", [11] = "K",
  [12] = "L", [13] = "M", [14] = "N", [15] = "O", [16] = "P",
  [17] = "Q", [18] = "R", [19] = "S", [20] = "T", [21] = "U",
  [22] = "V", [23] = "W", [24] = "X", [25] = "Y", [26] = "Z",
  [27] = "1", [28] = "2", [29] = "3", [30] = "4", [31] = "5",
  [32] = "6", [33] = "7", [34] = "8", [35] = "9", [36] = "0",
  [37] = "!", [38] = "@", [39] = "#", [40] = "$", [41] = "(",
  [42] = ")", [44] = "-", [46] = "+", [47] = "&", [48] = "=",
  [49] = ";", [50] = ":", [52] = "'", [53] = '"', [54] = "%",
  [55] = ",", [56] = ".", [59] = "/", [60] = "?", [62] = "°",
}

function decode(input)
  for i, code in ipairs(input) do
    input[ i ] = chars[ code ] or ''
  end

  local res = table.concat(input)
  return res:trim()
end

data = [[
{
  "currentMessage": {
    "layout": [
      [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
      [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
      [0,0,0,0,0,8,5,12,12,15,0,23,15,18,12,4,0,0,0,0,0,0],
      [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
      [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
      [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
    ],
    "id": "172c7808-52db-4eb9-9ecf-505bd00436bc"
  }
}
]]

data = json.pdecode(data)

-- messages = json.pdecode(data.currentMessage.layout)
messages = data.currentMessage.layout

for i, message in ipairs(messages) do
  messages[ i ] = decode(message)
end

log(messages)