Module:snon-headword

export.show

function export.show(frame)

---

local export = {}
local pos_functions = {}

local m_links = require("Module:links")
local m_table = require("Module:table")
local m_en_util = require("Module:en-utilities")
local m_hw_util = require("Module:headword utilities")

local lang = require("Module:languages").getByCode("snon")
local langname = lang:getCanonicalName()

local pagename = mw.loadData("Module:headword/data").pagename

local suffix_categories = {
	["adjectives"] = true,
	["adverbs"] = true,
	["nouns"] = true,
	["verbs"] = true,
}

local function do_inflection(data, forms, label, accel)
	if forms and #forms > 0 then
		forms.label = label
		if accel then
			forms.accel = accel
		end
		table.insert(data.inflections, forms)
	end
end

-- The main entry point.
-- This is the only function that can be invoked from a template.
function export.show(frame)
	local poscat = frame.args[1] or error("Part of speech has not been specified. Please pass parameter 1 to the module invocation.")
	local parargs = frame:getParent().args

	local params = {
		["head"] = {list = true, disallow_holes = true},
		["nomut"] = {type = "boolean"},
	}

	if pos_functions[poscat] then
		for key, val in pairs(pos_functions[poscat].params) do
			params[key] = val
		end
	end

	local args = require("Module:parameters").process(parargs, params)

	local heads = args.head
	if #heads == 0 then
		heads = {pagename}
	end

	local data = {
		lang = lang,
		pos_category = poscat,
		categories = {},
		heads = heads,
		genders = {},
		inflections = {},
		pagename = pagename,
	}

	if pos_functions[poscat] then
		pos_functions[poscat].func(args, data)
	end

	return require("Module:headword").full_headword(data)
end

-----------------------------------------------------------------------------------------
--                                          Nouns                                      --
-----------------------------------------------------------------------------------------

local allowed_genders = m_table.listToSet(
    {"m", "f", "mf", "mfbysense", "mfequiv", "gneut", "n", "m-p", "f-p", "mf-p", "mfbysense-p", "mfequiv-p", "gneut-p", "n-p", "?", "?-p"}
)

local function validate_genders(genders)
	for _, g in ipairs(genders) do
		if type(g) == "table" then
			g = g.spec
		end
		if not allowed_genders[g] then
			error("Unrecognized gender: " .. g)
		end
	end
end

local function do_noun(args, data, is_proper)
	local is_plurale_tantum = false
	local category_pos = m_en_util.singularize(data.pos_category)

	validate_genders(args[1])
	data.genders = args[1]
	-- Check for specific genders and pluralia tantum.
	for _, g in ipairs(args[1]) do
		if type(g) == "table" then
			g = g.spec
		end
		if g:find("-p$") then
			is_plurale_tantum = true
		end
	end

	local lemma = data.pagename

	local plurals = {}

	local function insert_noun_inflection(terms, label, accel)
		m_hw_util.insert_inflection {
			headdata = data,
			terms = terms,
			label = label,
			accel = accel and {form = accel} or nil,
		}
	end
	
	local function make_plural(term)
		return {{term .. "arr"}, {term .. "ar", l = "VE"}}
	end
	
	if is_plurale_tantum then
		if args[2][1] then
			error("Can't specify plurals of plurale tantum " .. category_pos)
		end
		insert(data.inflections, {label = m_hw_util.glossary_link("plural only")})
	else
		plurals = m_hw_util.parse_term_list_with_modifiers {
			paramname = {2, "pl"},
			forms = args[2],
			splitchar = ",",
		}
		-- Check for special plural signals
		local mode = nil

		local pl1 = plurals[1]
		if pl1 and #pl1.term == 1 then
			mode = pl1.term
			if mode == "?" or mode == "!" or mode == "-" or mode == "~" then
				pl1.term = nil
				if next(pl1) then
					error(("Can't specify inline modifiers with plural code '%s'"):format(mode))
				end
				table.remove(plurals, 1)  -- Remove the mode parameter
			elseif mode ~= "+" and mode ~= "#" then
				error(("Unexpected plural code '%s'"):format(mode))
			end
		end

		if is_plurale_tantum then
			-- both singular and plural
			insert(data.inflections, {label = "sometimes " .. m_hw_util.glossary_link("plural only") .. ", in variation"})
		end
		if mode == "?" then
			-- Plural is unknown
			insert(data.categories, langname .. " " .. data.pos_category .. " with unknown or uncertain plurals")
		elseif mode == "!" then
			-- Plural is not attested
			insert(data.inflections, {label = "plural not attested"})
			insert(data.categories, langname .. " " .. data.pos_category .. " with unattested plurals")
			if plurals[1] then
				error("Can't specify any plurals along with unattested plural code '!'")
			end
		elseif mode == "-" then
			-- Uncountable noun; may occasionally have a plural
			insert(data.categories, langname .. " uncountable " .. data.pos_category)

			-- If plural forms were given explicitly, then show "usually"
			if plurals[1] then
				insert(data.inflections, {label = "usually " .. m_hw_util.glossary_link("uncountable")})
				insert(data.categories, langname .. " countable " .. data.pos_category)
			else
				insert(data.inflections, {label = m_hw_util.glossary_link("uncountable")})
			end
		else
			-- Countable or mixed countable/uncountable
			if not plurals[1] and not is_proper then
				plurals[1] = {term = "+"}
			end
			if mode == "~" then
				-- Mixed countable/uncountable noun, always has a plural
				insert(data.inflections, {label = m_hw_util.glossary_link("countable") .. " and " .. m_hw_util.glossary_link("uncountable")})
				insert(data.categories, langname .. " uncountable " .. data.pos_category)
				insert(data.categories, langname .. " countable " .. data.pos_category)
			elseif plurals[1] then
				-- Countable nouns
				insert(data.categories, langname .. " countable " .. data.pos_category)
			else
				-- Uncountable nouns
				insert(data.categories, langname .. " uncountable " .. data.pos_category)
			end
		end

		-- Gather plurals, handling requests for default plurals.
		local has_default_or_hash = false
		for _, pl in ipairs(plurals) do
			if pl.term:find("^%+") or pl.term:find("#") then
				has_default_or_hash = true
				break
			end
		end

		if has_default_or_hash then
			for _, pl in ipairs(plurals) do
				if pl.term == "+" then
					-- make_plural should never return nil
					pl = make_plural(lemma)
				end
			end
		end

		insert_noun_inflection(plurals, "plural", "p")

		if plurals[2] then
			insert(data.categories, langname .. " " .. data.pos_category .. " with multiple plurals")
		end
	end
end

local function get_noun_params(is_proper)
	return {
		[1] = {list = "g", disallow_holes = true, required = not is_proper, default = "?", type = "genders", flatten = true},
		[2] = {list = "pl", disallow_holes = true},
		["w"] = {list = true, disallow_holes = true},
	}
end

pos_functions["nouns"] = {
	params = get_noun_params(),
	func = do_noun,
}

pos_functions["proper nouns"] = {
	params = get_noun_params("is proper"),
	func = function(args, data)
		do_noun(args, data, "is proper noun")
	end,
}

return export