Data update

Task/CSV-data-manipulation/Lua/csv-data-manipulation-1.lua

@@ -0,0 +1,13 @@
+-- Lua has no built in methods to handle csv files.
+-- it does have string.gmatch, which we use to global.match whatever isn't a comma
+
+print(io.read"l" .. ",SUM")
+for line in io.lines() do
+	local fields, sum = {}, 0
+	for field in line:gmatch"[^,]+" do
+		table.insert(fields, field)
+		sum = sum + field
+	end
+	table.insert(fields, sum)
+	print(table.concat(fields,","))
+end