Initial data commit

Task/FASTA-format/Lua/fasta-format.lua

@@ -0,0 +1,24 @@
+local file = io.open("input.txt","r")
+local data = file:read("*a")
+file:close()
+
+local output = {}
+local key = nil
+
+-- iterate through lines
+for line in data:gmatch("(.-)\r?\n") do
+	if line:match("%s") then
+		error("line contained space")
+	elseif line:sub(1,1) == ">" then
+		key = line:sub(2)
+		-- if key already exists, append to the previous input
+		output[key] = output[key] or ""
+	elseif key ~= nil then
+		output[key] = output[key] .. line
+	end
+end
+
+-- print result
+for k,v in pairs(output) do
+	print(k..": "..v)
+end