Example

function Process(req)

local f_name = InFieldName:GetValue(req).Value local f_value = InFieldValue:GetValue(req).Value local img = InImage:GetValue(req)

local result = Image({IMG_Like = img, IMG_NoData = req:IsPreCalc()}) img:Crop(result, { })

if (f_name ~= "") then

local newmetadata = result.Metadata or {} if f_value ~= "" then

-- create subtables for dotted field names local key

local subtable = newmetadata

for key in string.gmatch(f_name, "([%w_]+)%.") do subtable[key] = subtable[key] or {} subtable = subtable[key]

end

-- get final key

f_name = string.match(f_name, "[%w_]+$")

-- look for tables in f_value

local tbl = string.match(f_value, "%s*%b{}%s*") if tbl then

subtable[f_name] = eyeon.readstring(f_value) -- parse tables

else

subtable[f_name] = f_value

end

else

newmetadata[f_name] = nil

end

result.Metadata = newmetadata

end

OutImage:Set(req, result)

end