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authorproller <proller@github.com>2014-01-07 02:50:45 +0400
committerproller <proller@github.com>2014-01-07 02:50:45 +0400
commitc62bab010fcf2b4b93af1cf0b71d4d0dbf78fed8 (patch)
treeebc099dab9ded4535351b3ef3115ca593c48d482 /po/hu/minetest.po
parent3e728e722a788350718046daaf36f9a9c14ef1d1 (diff)
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Send long announce as POST, show OS in useragent
Add lag reporting to masterserver (average dtime) StyledWriter -> FastWriter in masterserver announce
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-- Minetest: builtin/misc_helpers.lua

--------------------------------------------------------------------------------
-- Localize functions to avoid table lookups (better performance).
local string_sub, string_find = string.sub, string.find

--------------------------------------------------------------------------------
local function basic_dump(o)
	local tp = type(o)
	if tp == "number" then
		return tostring(o)
	elseif tp == "string" then
		return string.format("%q", o)
	elseif tp == "boolean" then
		return tostring(o)
	elseif tp == "nil" then
		return "nil"
	-- Uncomment for full function dumping support.
	-- Not currently enabled because bytecode isn't very human-readable and
	-- dump's output is intended for humans.
	--elseif tp == "function" then
	--	return string.format("loadstring(%q)", string.dump(o))
	elseif tp == "userdata" then
		return tostring(o)
	else
		return string.format("<%s>", tp)
	end
end

local keywords = {
	["and"] = true,
	["break"] = true,
	["do"] = true,
	["else"] = true,
	["elseif"] = true,
	["end"] = true,
	["false"] = true,
	["for"] = true,
	["function"] = true,
	["goto"] = true,  -- Lua 5.2
	["if"] = true,
	["in"] = true,
	["local"] = true,
	["nil"] = true,
	["not"] = true,
	["or"] = true,
	["repeat"] = true,
	["return"] = true,
	["then"] = true,
	["true"] = true,
	["until"] = true,
	["while"] = true,
}
local function is_valid_identifier(str)
	if not str:find("^[a-zA-Z_][a-zA-Z0-9_]*$") or keywords[str] then
		return false
	end
	return true
end

--------------------------------------------------------------------------------
-- Dumps values in a line-per-value format.
-- For example, {test = {"Testing..."}} becomes:
--   _["test"] = {}
--   _["test"][1] = "Testing..."
-- This handles tables as keys and circular references properly.
-- It also handles multiple references well, writing the table only once.
-- The dumped argument is internal-only.

function dump2(o, name, dumped)
	name = name or "_"
	-- "dumped" is used to keep track of serialized tables to handle
	-- multiple references and circular tables properly.
	-- It only contains tables as keys.  The value is the name that
	-- the table has in the dump, eg:
	-- {x = {"y"}} -> dumped[{"y"}] = '_["x"]'
	dumped = dumped or {}
	if type(o) ~= "table" then
		return string.format("%s = %s\n", name, basic_dump(o))
	end
	if dumped[o] then
		return string.format("%s = %s\n", name, dumped[o])
	end
	dumped[o] = name
	-- This contains a list of strings to be concatenated later (because
	-- Lua is slow at individual concatenation).
	local t = {}
	for k, v in pairs(o) do
		local keyStr
		if type(k) == "table" then
			if dumped[k] then
				keyStr = dumped[k]
			else
				-- Key tables don't have a name, so use one of
				-- the form _G["table: 0xFFFFFFF"]
				keyStr = string.format("_G[%q]", tostring(k))
				-- Dump key table
				t[#t + 1] = dump2(k, keyStr, dumped)
			end
		else
			keyStr = basic_dump(k)
		end
		local vname = string.format("%s[%s]", name, keyStr)
		t[#t + 1] = dump2(v, vname, dumped)
	end
	return string.format("%s = {}\n%s", name, table.concat(t))
end

--------------------------------------------------------------------------------
-- This dumps values in a one-statement format.
-- For example, {test = {"Testing..."}} becomes:
-- [[{
-- 	test = {
-- 		"Testing..."
-- 	}
-- }]]
-- This supports tables as keys, but not circular references.
-- It performs poorly with multiple references as it writes out the full
-- table each time.
-- The indent field specifies a indentation string, it defaults to a tab.
-- Use the empty string to disable indentation.
-- The dumped and level arguments are internal-only.

function dump(o, indent, nested, level)
	local t = type(o)
	if not level and t == "userdata" then
		-- when userdata (e.g. player) is passed directly, print its metatable:
		return "userdata metatable: " .. dump(getmetatable(o))
	end
	if t ~= "table" then
		return basic_dump(o)
	end

	-- Contains table -> true/nil of currently nested tables
	nested = nested or {}
	if nested[o] then
		return "<circular reference>"
	end
	nested[o] = true
	indent = indent or "\t"
	level = level or 1

	local ret = {}
	local dumped_indexes = {}
	for i, v in ipairs(o) do
		ret[#ret + 1] = dump(v, indent, nested, level + 1)
		dumped_indexes[i] = true
	end
	for k, v in pairs(o) do
		if not dumped_indexes[k] then
			if type(k) ~= "string" or not is_valid_identifier(k) then
				k = "["..dump(k, indent, nested, level + 1).."]"
			end
			v = dump(v, indent, nested, level + 1)
			ret[#ret + 1] = k.." = "..v
		end
	end
	nested[o] = nil
	if indent ~= "" then
		local indent_str = "\n"..string.rep(indent, level)
		local end_indent_str = "\n"..string.rep(indent, level - 1)
		return string.format("{%s%s%s}",
				indent_str,
				table.concat(ret, ","..indent_str),
				end_indent_str)
	end
	return "{"..table.concat(ret, ", ").."}"
end

--------------------------------------------------------------------------------
function string.split(str, delim, include_empty, max_splits, sep_is_pattern)
	delim = delim or ","
	max_splits = max_splits or -2
	local items = {}
	local pos, len = 1, #str
	local plain = not sep_is_pattern
	max_splits = max_splits + 1
	repeat
		local np, npe = string_find(str, delim, pos, plain)
		np, npe = (np or (len+1)), (npe or (len+1))
		if (not np) or (max_splits == 1) then
			np = len + 1
			npe = np
		end
		local s = string_sub(str, pos, np - 1)
		if include_empty or (s ~= "") then
			max_splits = max_splits - 1
			items[#items + 1] = s
		end
		pos = npe + 1
	until (max_splits == 0) or (pos > (len + 1))
	return items
end

--------------------------------------------------------------------------------
function table.indexof(list, val)
	for i, v in ipairs(list) do
		if v == val then
			return i
		end
	end
	return -1
end

--------------------------------------------------------------------------------
function string:trim()
	return (self:gsub("^%s*(.-)%s*$", "%1"))
end

--------------------------------------------------------------------------------
function math.hypot(x, y)
	return math.sqrt(x * x + y * y)
end

--------------------------------------------------------------------------------
function math.sign(x, tolerance)
	tolerance = tolerance or 0
	if x > tolerance then
		return 1
	elseif x < -tolerance then
		return -1
	end
	return 0
end

--------------------------------------------------------------------------------
function math.factorial(x)
	assert(x % 1 == 0 and x >= 0, "factorial expects a non-negative integer")
	if x >= 171 then
		-- 171! is greater than the biggest double, no need to calculate
		return math.huge
	end
	local v = 1
	for k = 2, x do
		v = v * k
	end
	return v
end


function math.round(x)
	if x >= 0 then
		return math.floor(x + 0.5)
	end
	return math.ceil(x - 0.5)
end


function core.formspec_escape(text)
	if text ~= nil then
		text = string.gsub(text,"\\","\\\\")
		text = string.gsub(text,"%]","\\]")
		text = string.gsub(text,"%[","\\[")
		text = string.gsub(text,";","\\;")
		text = string.gsub(text,",","\\,")
	end
	return text
end


function core.wrap_text(text, max_length, as_table)
	local result = {}
	local line = {}
	if #text <= max_length then
		return as_table and {text} or text
	end

	for word in text:gmatch('%S+') do
		local cur_length = #table.concat(line, ' ')
		if cur_length > 0 and cur_length + #word + 1 >= max_length then
			-- word wouldn't fit on current line, move to next line
			table.insert(result, table.concat(line, ' '))
			line = {}
		end
		table.insert(line, word)
	end

	table.insert(result, table.concat(line, ' '))
	return as_table and result or table.concat(result, '\n')
end

--------------------------------------------------------------------------------

if INIT == "game" then
	local dirs1 = {9, 18, 7, 12}
	local dirs2 = {20, 23, 22, 21}

	function core.rotate_and_place(itemstack, placer, pointed_thing,
			infinitestacks, orient_flags, prevent_after_place)
		orient_flags = orient_flags or {}

		local unode = core.get_node_or_nil(pointed_thing.under)
		if not unode then
			return
		end
		local undef = core.registered_nodes[unode.name]
		local sneaking = placer and placer:get_player_control().sneak
		if undef and undef.on_rightclick and not sneaking then
			return undef.on_rightclick(pointed_thing.under, unode, placer,
					itemstack, pointed_thing)
		end
		local fdir = placer and core.dir_to_facedir(placer:get_look_dir()) or 0

		local above = pointed_thing.above
		local under = pointed_thing.under
		local iswall = (above.y == under.y)
		local isceiling = not iswall and (above.y < under.y)

		if undef and undef.buildable_to then
			iswall = false
		end

		if orient_flags.force_floor then
			iswall = false
			isceiling = false
		elseif orient_flags.force_ceiling then
			iswall = false
			isceiling = true
		elseif orient_flags.force_wall then
			iswall = true
			isceiling = false
		elseif orient_flags.invert_wall then
			iswall = not iswall
		end

		local param2 = fdir
		if iswall then
			param2 = dirs1[fdir + 1]
		elseif isceiling then
			if orient_flags.force_facedir then
				param2 = 20
			else
				param2 = dirs2[fdir + 1]
			end
		else -- place right side up
			if orient_flags.force_facedir then
				param2 = 0
			end
		end

		local old_itemstack = ItemStack(itemstack)
		local new_itemstack = core.item_place_node(itemstack, placer,
				pointed_thing, param2, prevent_after_place)
		return infinitestacks and old_itemstack or new_itemstack
	end


--------------------------------------------------------------------------------
--Wrapper for rotate_and_place() to check for sneak and assume Creative mode
--implies infinite stacks when performing a 6d rotation.
--------------------------------------------------------------------------------
	core.rotate_node = function(itemstack, placer, pointed_thing)
		local name = placer and placer:get_player_name() or ""
		local invert_wall = placer and placer:get_player_control().sneak or false
		return core.rotate_and_place(itemstack, placer, pointed_thing,
			core.is_creative_enabled(name),
			{invert_wall = invert_wall}, true)
	end
end

--------------------------------------------------------------------------------
function core.explode_table_event(evt)
	if evt ~= nil then
		local parts = evt:split(":")
		if #parts == 3 then
			local t = parts[1]:trim()
			local r = tonumber(parts[2]:trim())
			local c = tonumber(parts[3]:trim())
			if type(r) == "number" and type(c) == "number"
					and t ~= "INV" then
				return {type=t, row=r, column=c}
			end
		end
	end
	return {type="INV", row=0, column=0}
end

--------------------------------------------------------------------------------
function core.explode_textlist_event(evt)
	if evt ~= nil then
		local parts = evt:split(":")
		if #parts == 2 then
			local t = parts[1]:trim()
			local r = tonumber(parts[2]:trim())
			if type(r) == "number" and t ~= "INV" then
				return {type=t, index=r}
			end
		end
	end
	return {type="INV", index=0}
end

--------------------------------------------------------------------------------
function core.explode_scrollbar_event(evt)
	local retval = core.explode_textlist_event(evt)

	retval.value = retval.index
	retval.index = nil

	return retval
end

--------------------------------------------------------------------------------
function core.rgba(r, g, b, a)
	return a and string.format("#%02X%02X%02X%02X", r, g, b, a) or
			string.format("#%02X%02X%02X", r, g, b)
end

--------------------------------------------------------------------------------
function core.pos_to_string(pos, decimal_places)
	local x = pos.x
	local y = pos.y
	local z = pos.z
	if decimal_places ~= nil then
		x = string.format("%." .. decimal_places .. "f", x)
		y = string.format("%." .. decimal_places .. "f", y)
		z = string.format("%." .. decimal_places .. "f", z)
	end
	return "(" .. x .. "," .. y .. "," .. z .. ")"
end

--------------------------------------------------------------------------------
function core.string_to_pos(value)
	if value == nil then
		return nil
	end

	local x, y, z = string.match(value, "^([%d.-]+)[, ] *([%d.-]+)[, ] *([%d.-]+)$")
	if x and y and z then
		x = tonumber(x)
		y = tonumber(y)
		z = tonumber(z)
		return vector.new(x, y, z)
	end
	x, y, z = string.match(value, "^%( *([%d.-]+)[, ] *([%d.-]+)[, ] *([%d.-]+) *%)$")
	if x and y and z then
		x = tonumber(x)
		y = tonumber(y)
		z = tonumber(z)
		return vector.new(x, y, z)
	end
	return nil
end


--------------------------------------------------------------------------------
function core.string_to_area(value)
	local p1, p2 = unpack(value:split(") ("))
	if p1 == nil or p2 == nil then
		return nil
	end

	p1 = core.string_to_pos(p1 .. ")")
	p2 = core.string_to_pos("(" .. p2)
	if p1 == nil or p2 == nil then
		return nil
	end

	return p1, p2
end

local function test_string_to_area()
	local p1, p2 = core.string_to_area("(10.0, 5, -2) (  30.2,   4, -12.53)")
	assert(p1.x == 10.0 and p1.y == 5 and p1.z == -2)
	assert(p2.x == 30.2 and p2.y == 4 and p2.z == -12.53)

	p1, p2 = core.string_to_area("(10.0, 5, -2  30.2,   4, -12.53")
	assert(p1 == nil and p2 == nil)

	p1, p2 = core.string_to_area("(10.0, 5,) -2  fgdf2,   4, -12.53")
	assert(p1 == nil and p2 == nil)
end

test_string_to_area()

--------------------------------------------------------------------------------
function table.copy(t, seen)
	local n = {}
	seen = seen or {}
	seen[t] = n
	for k, v in pairs(t) do
		n[(type(k) == "table" and (seen[k] or table.copy(k, seen))) or k] =
			(type(v) == "table" and (seen[v] or table.copy(v, seen))) or v
	end
	return n
end


function table.insert_all(t, other)
	for i=1, #other do
		t[#t + 1] = other[i]
	end
	return t
end


function table.key_value_swap(t)
	local ti = {}
	for k,v in pairs(t) do
		ti[v] = k
	end
	return ti
end


function table.shuffle(t, from, to, random)
	from = from or 1
	to = to or #t
	random = random or math.random
	local n = to - from + 1
	while n > 1 do
		local r = from + n-1
		local l = from + random(0, n-1)
		t[l], t[r] = t[r], t[l]
		n = n-1
	end
end


--------------------------------------------------------------------------------
-- mainmenu only functions
--------------------------------------------------------------------------------
if INIT == "mainmenu" then
	function core.get_game(index)
		local games = core.get_games()

		if index > 0 and index <= #games then
			return games[index]
		end

		return nil
	end
end

if core.gettext then -- for client and mainmenu
	function fgettext_ne(text, ...)