Module:Infobox regtemp

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This module should not be invoked directly; use its corresponding template instead: Template:Infobox regtemp.
Module:Infobox regtemp is a draft module. It is incomplete and may not be in active development. If possible, editors are encouraged to help with its development. In the meantime, editors should avoid using this module across the Xenharmonic Wiki, except for testing.
This module generates an infobox providing information about a given regular temperament.
Introspection summary for Module:Infobox regtemp
Functions provided (8)
Line	Function	Params
7	`infobox_RT` (invokable)	`(frame)`
280	`count_matches`	`(base, pattern)`
284	`digit2greek`	`(number, purpose)`
366	`num2greek`	`(number, purpose)`
381	`digit2greeklet`	`(number, purpose)`
448	`num2greeklet`	`(number)`
463	`equave2letter`	`(et_eq)`
478	`warts2ed`	`(warts)`
Lua modules required (3)
Variable	Module	Functions used
infobox	Module:Infobox	`build`
u	Module:Utils	`eval_num_arg` `value_provided` `log2`
yesno	Module:Yesno	dependency not used
No function descriptions were provided. The Lua code may have further information.
local p = {}

local infobox = require("Module:Infobox")
local u = require("Module:Utils")
local yesno = require("Module:Yesno")

function p.infobox_RT(frame)
	
	local name = frame.args["tempname"]
	
	local subgroup = frame.args["subgroup"]
	local basis = frame.args["commas"]
	
	local et1 = frame.args["edo_first"]
	local et2 = frame.args["edo_second"]
	local et3 = frame.args["edo_third"]
	local et4 = frame.args["edo_fourth"]
	
	local tuning = frame.args["tuning"]
	local genfrac = frame.args["genfrac"]
	local method = frame.args["method"]
	local mapping = frame.args["mapping"]
	
	local mos_override = frame.args["mosses"]
	local ploidacot_override = frame.args["ploidacot"]
	local colorname = frame.args["colorname"]
	local pergen = frame.args["pergen"]
	
	local limit1 = frame.args["lim1"]
	local comp1 = frame.args["comp1"]
	local acc1 = frame.args["acc1"]
	local limit2 = frame.args["lim2"]
	local comp2 = frame.args["comp2"]
	local acc2 = frame.args["acc2"]
	local limit3 = frame.args["lim3"]
	local comp3 = frame.args["comp3"]
	local acc3 = frame.args["acc3"]
	local limit4 = frame.args["lim4"]
	local comp4 = frame.args["comp4"]
	local acc4 = frame.args["acc4"]
	local debugg = frame.args["debug"]
	
	local data = {}
	
	-- process mapping
	local rank = p.count_matches(mapping, ";") + 1
	local period = string.match(mapping, "(-?%d+);")
	local genchain_mapping = {}
	for str in mapping:gmatch("(-?%d+)") do
		table.insert(genchain_mapping, str)
	end
	
	-- interpret subgroup
	local subgroup_basis = {}
	for str in subgroup:gmatch("(%d+/?%d*)") do
		table.insert(subgroup_basis, str)
	end
	
	local equave = u.eval_num_arg(subgroup_basis[1])
	
	-- process et join
	function process_et_join(et)
		local et_eq, et_num = p.warts2ed(et)
		local et_eq_letter = p.equave2letter (et_eq)
		return "[[" .. et_num .. "ed" .. et_eq_letter .. "|" .. et .. "]]"
	end
	
	local et_table = {}
	for _, et in ipairs({et1, et2, et3, et4}) do
		if u.value_provided(et) then
			table.insert(et_table, process_et_join (et))
		end
	end
	local et_join = table.concat(et_table, " & ")
	
	-- process generators
	function process_generators(genfrac_item, tuning_item)
		return "~" .. genfrac_item .. " = " .. tuning_item .. "{{c}}"
	end
	
	local genfrac_table = {}
	for str in genfrac:gmatch("(%d+/?%d*)") do
		table.insert(genfrac_table, str)
	end
	local tuning_table = {}
	for str in tuning:gmatch("(-?%d+%.?%d*)") do
		table.insert(tuning_table, str)
	end
	local generators_table = {}
	for i = 1, math.min(#genfrac_table, #tuning_table) do
		table.insert(generators_table, 
			process_generators (genfrac_table[i], tuning_table[i]))
	end
	local generators = table.concat (generators_table, ", ")
	
	-- default value for mos
	local mos = "n/a"
	
	-- autocalculating ploidacot
	if rank == 2 then
		local ploid = tonumber(period)
		local referent = u.eval_num_arg(subgroup_basis[2])
		local cot = tonumber(genchain_mapping[2])
		local suffix = "cleft"
		if equave == 2 then -- octave-based temp
			if referent == 3 then
				suffix = "cot"
			elseif referent == 5 then
				suffix = "seph"
			end
		elseif equave == 3 then -- twelfth-based temp
			if referent == 5 then
				referent_candidate = u.eval_num_arg(subgroup_basis[3])
				if referent_candidate == 7 then
					referent = referent_candidate
					cot = tonumber(genchain_mapping[3])
					suffix = "gem"
				end
			end
		end
		
		if suffix == "cleft" then
			suffix = referent .. suffix
		end
		
		local equave_size = 1200 * u.log2(equave)
		local referent_size = 1200 * u.log2(referent)
		local period_size = equave_size / ploid
		local generator_size = tonumber(tuning_table[1])
		if cot < 0 then
			generator_size = equave_size - generator_size
			cot = -cot
		end
		
		-- find the shear
		local shear
		if cot ~= 0 then
			shear = (math.floor(generator_size * cot / period_size) 
				- math.floor(referent_size % equave_size / period_size)) % cot
		else
			shear = 0
		end
		
		-- omega extension
		if ploid == 1 and cot > 2 and shear == cot - ploid then
			shear = shear - cot
		end
		
		-- construct the ploidacot signature
		local MAX_GREEK_NUMERAL = 12 -- max number to convert to greek letters/numerals
		
		local ploid_sig
		if ploid == 1 then
			ploid_sig = "" -- omit the ploid part
		elseif ploid <= MAX_GREEK_NUMERAL then
			ploid_sig = p.num2greek(tostring(ploid), "ploid") .. "ploid "
		else
			ploid_sig = tostring (ploid) .. "-ploid "
		end
		
		local shear_sig
		if shear <= MAX_GREEK_NUMERAL then
			shear_sig = p.num2greeklet(tostring(shear))
		else
			shear_sig = tostring(shear) .. "-sheared "
		end
		
		local cot_sig
		if cot <= MAX_GREEK_NUMERAL then
			cot_sig = p.num2greek(tostring(cot), "cot") .. suffix
		else
			cot_sig = tostring(cot) .. "-" .. suffix
		end
		
		ploidacot = ploid_sig .. shear_sig .. cot_sig
	else
		ploidacot = "n/a"
	end
		
	-- user override
	if u.value_provided (mos_override) then
		mos = mos_override
	end
	if u.value_provided (ploidacot_override) then
		ploidacot = ploidacot_override
	end
	
	-- construct the table
	table.insert(data, {
		"Subgroups",
		subgroup
	})

	table.insert(data, {
		"Comma basis",
		basis
	})

	table.insert(data, {
		"Reduced mapping",
		"⟨" .. mapping .. "]"
	})

	table.insert(data, {
		"ET join",
		et_join
	})

	table.insert(data, {
		"Generators ([[" .. method .. "]])",
		generators
	})

	table.insert(data, {
		"MOS scales",
		mos
	})

	table.insert(data, {
		"Ploidacot",
		ploidacot
	})
	
	if u.value_provided (pergen) then
		table.insert(data, {
			"Pergen",
			pergen
		})
	end

	if u.value_provided (colorname) then
		table.insert(data, {
			"Color name",
			colorname
		})
	end
	
	-- error and stuff
	local limit_text
	if equave == 2 then
		limit_text = "-odd-limit"
	elseif equave == 3 then
		limit_text = "-throdd-limit"
	else
		limit_text = "-integer-limit"
	end
	local string1 = limit1 .. limit_text .. ": " .. acc1 .. "{{c}}"
	local string2 = limit1 .. limit_text .. ": " .. comp1 .. " notes"
	if u.value_provided (limit2) then
		string1 = string1 .. "; <br>" .. limit2 .. limit_text .. ": " .. acc2 .. "{{c}}"
		string2 = string2 .. "; <br>" .. limit2 .. limit_text .. ": " .. comp2 .. " notes"
	end
	if u.value_provided (limit3) then
		string1 = string1 .. "; <br>" .. limit3 .. limit_text .. ": " .. acc3 .. "{{c}}"
		string2 = string2 .. "; <br>" .. limit3 .. limit_text .. ": " .. comp3 .. " notes"
	end
	if u.value_provided (limit4) then
		string1 = string1 .. "; <br>" .. limit4 .. limit_text .. ": " .. acc4 .. "{{c}}"
		string2 = string2 .. "; <br>" .. limit4 .. limit_text .. ": " .. comp4 .. " notes"
	end

	table.insert(data, {
		"Minimax error",
		string1
	})

	table.insert(data, {
		"Target scale size",
		string2
	})

	local result = infobox.build(
		name,
		data
	)
	
	return frame:preprocess(debugg == true and "<pre>" .. result .. "</pre>" or result)
end

function p.count_matches(base, pattern)
    return select(2, string.gsub(base, pattern, ""))
end

function p.digit2greek(number, purpose)

	local greek
	
	if number == "1" then
		if purpose == "ploid" then
			greek = "ha"
		elseif purpose == "cot" then
			greek = "mono"
		elseif purpose == "decade" then
			greek = "deca"
		else
			greek = "hen"
		end
	elseif number == "2" then
		if purpose == "decade" then
			greek = "icosa"
		elseif purpose == "unit" then
			greek = "do"
		else
			greek = "di"
		end
	elseif number == "0" then
		if purpose == "unit" then
			greek = ""
		else
			greek = "a"
		end
	else
		if number == "3" then
			if purpose == "decade" then
				greek = "tria"
			else
				greek = "tri"
			end
		elseif number == "4" then
			if purpose == "decade" then
				greek = "tessera"
			else
				greek = "tetra"
			end
		elseif number == "5" then
			if purpose == "decade" then
				greek = "pente"
			else
				greek = "penta"
			end
		elseif number == "6" then
			if purpose == "decade" then
				greek = "hexe"
			else
				greek = "hexa"
			end
		elseif number == "7" then
			if purpose == "decade" then
				greek = "hebdome"
			else
				greek = "hepta"
			end
		elseif number == "8" then
			if purpose == "decade" then
				greek = "ogdoe"
			elseif purpose == "unit" then
				greek = "octo"
			else
				greek = "octa"
			end
		elseif number == "9" then
			if purpose == "decade" then
				greek = "enene"
			else
				greek = "ennea"
			end
		end
		if purpose == "decade" then
			greek = greek .. "conta"
		end
	end

	return greek
end

function p.num2greek(number, purpose)

	local greek
	
	if string.len(number) == 1 then
		greek = p.digit2greek(number, purpose)
	elseif string.len(number) == 2 then
		local unit = string.char(string.byte(number, 2))
		local decade = string.char(string.byte(number, 1))
		
		greek = p.digit2greek(unit, "unit") .. p.digit2greek(decade, "decade")
	end
	return greek
end

function p.digit2greeklet(number, purpose)

	local greek
	
	if number == "1" then
		if purpose == "decade" then
			greek = "iota-"
		elseif purpose == "unit" then
			greek = "alpha-"
		end
	elseif number == "2" then
		if purpose == "decade" then
			greek = "kappa-"
		elseif purpose == "unit" then
			greek = "beta-"
		end
	elseif number == "3" then
		if purpose == "decade" then
			greek = "lambda-"
		elseif purpose == "unit" then
			greek = "gamma-"
		end
	elseif number == "4" then
		if purpose == "decade" then
			greek = "mu-"
		elseif purpose == "unit" then
			greek = "delta-"
		end
	elseif number == "5" then
		if purpose == "decade" then
			greek = "nu-"
		elseif purpose == "unit" then
			greek = "epsilon-"
		end
	elseif number == "6" then
		if purpose == "decade" then
			greek = "xi-"
		elseif purpose == "unit" then
			greek = "wau-"
		end
	elseif number == "7" then
		if purpose == "decade" then
			greek = "omicron-"
		elseif purpose == "unit" then
			greek = "zeta-"
		end
	elseif number == "8" then
		if purpose == "decade" then
			greek = "pi-"
		elseif purpose == "unit" then
			greek = "eta-"
		end
	elseif number == "9" then
		if purpose == "decade" then
			greek = "qoppa-"
		elseif purpose == "unit" then
			greek = "theta-"
		end	
	elseif number == "0" then
		greek = ""
	elseif number == "-1" then
		greek = "omega-"
	end

	return greek
end

function p.num2greeklet(number)

	local greek
	
	if string.len(string.match(number, "(%d+)")) == 1 then
		greek = p.digit2greeklet(number, "unit")
	elseif string.len(string.match(number, "(%d+)")) == 2 then
		local unit = string.char(string.byte(number, 2))
		local decade = string.char(string.byte(number, 1))
		
		greek = p.digit2greeklet(decade, "decade") .. p.digit2greeklet(unit, "unit")
	end
	return greek
end

function p.equave2letter(et_eq)
	-- converts an equave string to a letter
	local et_eq_letter
	if et_eq == "2" then
		et_eq_letter = "o"
	elseif et_eq == "3" then
		et_eq_letter = "t"
	elseif et_eq == "3/2" then
		et_eq_letter = "f"
	else
		et_eq_letter = et_eq
	end
	return et_eq_letter
end

function p.warts2ed(warts)
	-- converts a wart notation to an equal division
	local wart_prefix, et_num = warts:match ("(%a?)(%d+)")
	local et_eq = "2"
	if wart_prefix == "a" then
		et_eq = "2"
	elseif wart_prefix == "b" then
		et_eq = "3"
	elseif wart_prefix == "c" then
		et_eq = "5"
	elseif wart_prefix == "d" then
		et_eq = "7"
	elseif wart_prefix == "e" then
		et_eq = "11"
	elseif wart_prefix == "f" then
		et_eq = "13"
	elseif wart_prefix == "g" then
		et_eq = "17"
	elseif wart_prefix == "h" then
		et_eq = "19"
	elseif wart_prefix == "i" then
		et_eq = "23"
	elseif wart_prefix == "j" then
		et_eq = "29"
	elseif wart_prefix == "k" then
		et_eq = "31"
	end
	return et_eq, et_num
end

return p
Module:Infobox regtemp

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