File

tools/dnsregistry.lua @ 13039:9ddb344b9fab

util.human.io: Allow defining per column ellipsis function As an alternative to doing it in the mapper function. Could be useful in cases where one may want to put the ellipsis in the middle or beginning instead of the start.
author Kim Alvefur <zash@zash.se>
date Fri, 07 Apr 2023 13:00:58 +0200
parent 12855:3306807c0619
child 13142:879a6a33c21b
line wrap: on
line source

-- Generate util/dnsregistry.lua from IANA HTTP status code registry
local xml = require "util.xml";
local registries = xml.parse(io.read("*a"), { allow_processing_instructions = true });

print("-- Source: https://www.iana.org/assignments/dns-parameters/dns-parameters.xml");
print(os.date("-- Generated on %Y-%m-%d"))

local registry_mapping = {
	["dns-parameters-2"] = "classes";
	["dns-parameters-4"] = "types";
	["dns-parameters-6"] = "errors";
};

print("return {");
for registry in registries:childtags("registry") do
	local registry_name = registry_mapping[registry.attr.id];
	if registry_name then
		print("\t" .. registry_name .. " = {");
		for record in registry:childtags("record") do
			local record_name = record:get_child_text("name");
			local record_type = record:get_child_text("type");
			local record_desc = record:get_child_text("description");
			local record_code = tonumber(record:get_child_text("value"));

			if tostring(record):lower():match("reserved") or tostring(record):lower():match("unassigned") then
				record_code = nil;
			end

			if registry_name == "classes" and record_code then
				record_type = record_desc and record_desc:match("%((%w+)%)$")
				if record_type then
					print(("\t\t[%q] = %d; [%d] = %q;"):format(record_type, record_code, record_code, record_type))
				end
			elseif registry_name == "types" and record_type and record_code then
				print(("\t\t[%q] = %d; [%d] = %q;"):format(record_type, record_code, record_code, record_type))
			elseif registry_name == "errors" and record_code and record_name then
				print(("\t\t[%d] = %q; [%q] = %q;"):format(record_code, record_name, record_name, record_desc or record_name));
			end
		end
		print("\t};");
	end
end
print("};");