Module:de-headword

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The following documentation is located at Module:de-headword/documentation. Categories were auto-generated by Module:module categorization.
Useful links: subpage list • links • transclusions • testcases • sandbox (diff)
This module needs documentation.
Please document this module by describing its purpose and usage on the documentation page. 

local export = {}
local pos_functions = {}

local headword_utilities_module = "Module:headword utilities"
local inflection_utilities_module = "Module:inflection utilities"

local lang = require("Module:languages").getByCode("de")

local legal_gender = {
	 = true,
	 = true,
	 = true,
	 = true,
}

local gender_names = {
	 = "masculine",
	 = "feminine",
	 = "neuter",
}

local legal_verb_classes = {
	 = true,
	 = true,
	 = true,
	 = true,
	 = true,
	 = true,
	 = true,
}

local function ine(val)
	if val == "" then return nil else return val end
end


local function glossary_link(entry, text)
	text = text or entry
	return "]"
end


local function track(page)
	require("Module:debug").track("de-headword/" .. page)
	return true
end


-- The main entry point.
-- This is the only function that can be invoked from a template.
function export.show(frame)
	local args = frame:getParent().args
	PAGENAME = mw.title.getCurrentTitle().text

	local poscat = frame.args or error("Part of speech has not been specified. Please pass parameter 1 to the module invocation.")
	local class = frame.args; if class == "" then class = nil end

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

	if pos_functions then
		pos_functions(class, args, data)
	end

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

local function old_adjectives(class, args, data)
	track("de-adj-old")
	local params = {
		 = {list = "comp"},
		 = {list = "sup"},
		 = {list = true},
	}
	local args = require("Module:parameters").process(args, params)
	data.heads = args

	if args == "-" then
		table.insert(data.inflections, {label = "not comparable"})
		table.insert(data.categories, "German uncomparable adjectives")
		return
	end

	if #args > 0 then
		for i, form in ipairs(args) do
			args = {term = (form == "er" and PAGENAME .. "er" or form),
				accel = {form = "comparative"}}
		end
	else
		args = {request = true}
		track("de-adj lacking comparative")
	end
	args.label = glossary_link("comparative")
	table.insert(data.inflections, args)

	if #args > 0 then
		for i, form in ipairs(args) do
			args = {
				term = "am ]",
				accel = {form = "superlative"}}
		end
	else
		args = {request = true}
		track("de-adj lacking superlative")
	end
	args.label = glossary_link("superlative")
	table.insert(data.inflections, args)
end


pos_functions.adjectives = function(class, args, data, proper)
	-- Compatibility with old calling convention, either if old= is given or any arg no longer supported is given.
	if ine(args.old) or ine(args) or ine(args.comp1) or ine(args.comp2) or ine(args.comp3) or
		ine(args.sup1) or ine(args.sup2) or ine(args.sup3) or args == "-" then
		return old_adjectives(class, args, data)
	else
		-- Remove this code once we convert to the new format.
		track("de-adj-need-old")
	end

	local alternant_multiword_spec = require("Module:de-adjective").do_generate_forms(args, nil, "from headword")
	data.heads = alternant_multiword_spec.args.head
	data.id = alternant_multiword_spec.args.id
	data.sort = alternant_multiword_spec.args.sort

	local function do_adj_form(slot, label, should_be_present, accel_form)
		local forms = alternant_multiword_spec.forms
		local retval
		if not forms then
			if not should_be_present then
				return
			end
			retval = {label = "no " .. label}
		else
			retval = {label = label, accel = accel_form and {form = accel_form} or nil}
			local prev_footnotes
			for _, form in ipairs(forms) do
				local footnotes = form.footnotes
				if footnotes and prev_footnotes and require("Module:table").deepEquals(footnotes, prev_footnotes) then
					footnotes = nil
				end
				prev_footnotes = form.footnotes
				local quals, refs = require(inflection_utilities_module).
					convert_footnotes_to_qualifiers_and_references(footnotes)
				local term = form.form
				table.insert(retval, {term = term, q = quals, refs = refs, genders = genders})
			end
		end

		table.insert(data.inflections, retval)
	end

	if alternant_multiword_spec.props.indecl then
		table.insert(data.inflections, {label = glossary_link("indeclinable")})
		if alternant_multiword_spec.props.predonly then
			table.insert(data.inflections, {label = "predicative only"})
		elseif alternant_multiword_spec.props.nopred then
			table.insert(data.inflections, {label = "no predicative form"})
		end
	else
		if alternant_multiword_spec.props.nopred then
			table.insert(data.inflections, {label = "no predicative form"})
		end
		do_adj_form("str_nom_m", "strong nominative masculine singular", true)
		local should_comp_sup =
			alternant_multiword_spec.forms.comp_pred or alternant_multiword_spec.forms.sup_pred or
			alternant_multiword_spec.forms.comp_str_nom_m or alternant_multiword_spec.forms.sup_str_nom_m
		if not should_comp_sup then
			table.insert(data.inflections, {label = "not comparable"})
		else
			-- If there is no predicative comparative, but there is an attributive comparative, include it;
			-- otherwise, include the predicative comparative (if any). If there is no comparative but a superlative,
			-- this will display "no comparative".
			if not alternant_multiword_spec.forms.comp_pred and alternant_multiword_spec.forms.comp_str_nom_m then
				do_adj_form("comp_str_nom_m", "strong comparative nominative masculine singular", true)
			else
				do_adj_form("comp_pred", glossary_link("comparative"), true, "comparative")
			end
			-- Same as above, for the superlative.
			if not alternant_multiword_spec.forms.sup_pred and alternant_multiword_spec.forms.sup_str_nom_m then
				do_adj_form("sup_str_nom_m", "strong superlative nominative masculine singular", true)
			else
				do_adj_form("sup_pred", glossary_link("superlative"), true, "superlative")
			end
		end
	end

	-- Add categories.
	for _, cat in ipairs(alternant_multiword_spec.categories) do
		table.insert(data.categories, cat)
	end

	-- Use the "linked" form of the lemma as the head if no head= explicitly given.
	data.no_redundant_head_cat = true -- always set since we have a different lemma linking algorithm from ].
	if #data.heads == 0 then
		data.heads = {}
		local lemmas = alternant_multiword_spec.forms.the_lemma or {}
		for _, lemma_obj in ipairs(lemmas) do
			local head = alternant_multiword_spec.args.nolinkhead and lemma_obj.form or
				require(headword_utilities_module).add_links_to_multiword_term(lemma_obj.form,
					{split_hyphen_when_space = alternant_multiword_spec.args.splithyph})
			local quals, refs = require(inflection_utilities_module).
				convert_footnotes_to_qualifiers_and_references(lemma_obj.footnotes)
			table.insert(data.heads, {term = head, q = quals, refs = refs})
		end
	end
end

local function old_nouns(class, args, data)
	track("de-noun-old")
	local params = {
		 = {list = "g", default = "?"},
		 = {list = "gen"},
		 = {list = "pl"},
		 = {list = "dim"},
		 = {list = true},
		 = {list = true},
		 = {list = true},
		 = {type = "boolean"},
	}

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

	-- Gender
	for _, g in ipairs(args) do
		if legal_gender then
			table.insert(data.genders, g)

			if g == "p" then
				table.insert(data.categories, "German pluralia tantum")
			else
				table.insert(data.categories, "German " .. gender_names .. " nouns")
			end
		else
			if g == "m-s" or g == "f-s" or g == "n-s" or g == "m-p" or g == "f-p" or g == "n-p" then
				require("Module:debug").track("de-headword/genders")
			end

			table.insert(data.genders, "?")
		end
	end

	if args ~= "p" then
		-- Genitive
		if not args then
			if args == "m" or args == "n" then
				table.insert(args, PAGENAME .. "s")
			else
				table.insert(args, PAGENAME)
			end
		end

		for i, form in ipairs(args) do
			args = {term = form}
		end

		args.accel = {form = "gen|s"}
		args.label = "genitive"
		table.insert(data.inflections, args)

		-- Plural
		if not args and data.pos_category == "nouns" then
			table.insert(args, PAGENAME .. "en")
		end

		if args == "-" then
			table.insert(data.inflections, {label = "no plural"})
			table.insert(data.categories, "German uncountable nouns")
		elseif #args > 0 then
			for i, form in ipairs(args) do
				args = {term = form}
			end

			args.accel = {form = "p"}
			args.label = "plural"
			table.insert(data.inflections, args)
		end
	end

	-- Diminutive
	if #args > 0 then
		for i, form in ipairs(args) do
			args = {term = form, genders = {"n"}}
		end

		args.accel = {form = "diminutive", gender = "n"}
		args.label = "diminutive"
		table.insert(data.inflections, args)
	end

	-- Other gender
	if #args.f > 0 then
		args.f.label = "female"
		if args.f == "in" then
			args.f = PAGENAME .. "in"
		end
		if args.f == PAGENAME .. "in" then
			args.f.accel = {form = "feminine", gender = "f"}
			args.f.label = "feminine"
		end
		table.insert(data.inflections, args.f)
	end

	if #args.m > 0 then
		args.m.label = "male"
		table.insert(data.inflections, args.m)
	end
end


pos_functions.nouns = function(class, args, data, proper)
	-- Compatibility with old calling convention, either if old= is given or any arg no longer supported is given.
	if ine(args.old) or ine(args) or ine(args) or ine(args) or ine(args.g1) or ine(args.g2) or ine(args.g3) or
		ine(args.gen1) or ine(args.gen2) or ine(args.gen3) or ine(args.pl1) or ine(args.pl2) or ine(args.pl3) then
		return old_nouns(class, args, data)
	end

	local m_de_noun = require("Module:de-noun")
	local alternant_multiword_spec = m_de_noun.do_generate_forms(args, nil, "from headword", proper)
	data.heads = alternant_multiword_spec.args.head
	data.genders = alternant_multiword_spec.genders
	data.id = alternant_multiword_spec.args.id
	data.sort = alternant_multiword_spec.args.sort
	if not proper then
		data.pos_category = alternant_multiword_spec.pos
		if alternant_multiword_spec.pos == "suffixes" then
			table.insert(data.categories, "German noun-forming suffixes")
		end
	end

	local function get_nom_articles(alternant_multiword_spec)
		local articles = {}
		local m_table = require("Module:table")
		if alternant_multiword_spec.number == "pl" then
			m_table.insertIfNot(articles, "]")
		else
			for _, gender in ipairs(alternant_multiword_spec.genders) do
				if gender.spec == "m" then
					m_table.insertIfNot(articles, "]")
				elseif gender.spec == "f" then
					m_table.insertIfNot(articles, "]")
				elseif gender.spec == "n" then
					m_table.insertIfNot(articles, "]")
				else
					error("Internal error: Unrecognized gender '" .. gender.spec .. "'")
				end
			end
		end
		return table.concat(articles, "/")
	end

	local function get_gen_s_articles(alternant_multiword_spec)
		local articles = {}
		local m_table = require("Module:table")
		if alternant_multiword_spec.number == "pl" then
			error("Internal error: Should not be called on plural-only nouns")
		else
			for _, gender in ipairs(alternant_multiword_spec.genders) do
				if gender.spec == "m" or gender.spec == "n" then
					m_table.insertIfNot(articles, "]")
				elseif gender.spec == "f" then
					m_table.insertIfNot(articles, "]")
				else
					error("Internal error: Unrecognized gender '" .. gender.spec .. "'")
				end
			end
		end
		return table.concat(articles, "/")
	end

	local function do_noun_form(slot, label, should_be_present, accel_form, genders, prefix)
		local forms = alternant_multiword_spec.forms
		local retval
		if not forms then
			if not should_be_present then
				return
			end
			retval = {label = "no " .. label}
		else
			retval = {label = label, accel = accel_form and {form = accel_form} or nil}
			local prev_footnotes
			for _, form in ipairs(forms) do
				local footnotes = form.footnotes
				if footnotes and prev_footnotes and require("Module:table").deepEquals(footnotes, prev_footnotes) then
					footnotes = nil
				end
				prev_footnotes = form.footnotes
				local quals, refs = require(inflection_utilities_module).convert_footnotes_to_qualifiers_and_references(footnotes)
				local term = form.form
				if prefix then
					if not term:find("]") then
						term = "]"
					end
					term = prefix .. " " .. term
				end
				table.insert(retval, {term = term, q = quals, refs = refs, genders = genders})
			end
		end

		table.insert(data.inflections, retval)
	end

	if proper then
		table.insert(data.inflections, {label = glossary_link("proper noun")})
	end
	local decl_types = alternant_multiword_spec.decl_type
	if decl_types and #decl_types > 0 then
		local decl_descs = {}
		for _, decl_type in ipairs(decl_types) do
			table.insert(decl_descs, glossary_link(decl_type .. " declension", decl_type))
		end
		table.insert(data.inflections, {label = table.concat(decl_descs, " or ")})
	end
	local overall_adj = alternant_multiword_spec.props.overall_adj
	local article = alternant_multiword_spec.props.article
	local surname = alternant_multiword_spec.props.surname
	local langname = alternant_multiword_spec.props.langname
	local saw_f = false
	local saw_mn = false
	for _, gender in ipairs(alternant_multiword_spec.genders) do
		if gender.spec == "f" then
			saw_f = true
		elseif gender.spec == "m" or gender.spec == "n" then
			saw_mn = true
		end
	end
	local fem_sg_only = not saw_mn and alternant_multiword_spec.number ~= "pl"
	if not alternant_multiword_spec.first_noun and alternant_multiword_spec.first_adj then
		table.insert(data.inflections, {label = "adjectival"})
	end
	if surname then
		table.insert(data.inflections, {label = "surname"})
	end
	if langname then
		table.insert(data.inflections, {label = "language name"})
	end
	if alternant_multiword_spec.number == "pl" then
		table.insert(data.inflections, {label = glossary_link("plural only")})
	end
	if article then
		table.insert(data.inflections, {label = "usually definite"})
	end
	if alternant_multiword_spec.number == "pl" then
		if overall_adj then
			do_noun_form("wk_nom_p", "definite plural", true, nil, nil, "]")
		end
	elseif surname then
		do_noun_form("gen_m_s", "masculine genitive", true)
		do_noun_form("gen_f_s", "feminine genitive", true)
		do_noun_form("nom_p", "plural", true)
	elseif langname then
		do_noun_form("gen_s", "genitive", true)
		do_noun_form("nom_s_alt", "alternative nominative (used with the definite article)", true)
		do_noun_form("gen_s_alt", "alternative genitive", true)
		-- There should be no plural; this will trigger the display of 'no plural'.
		do_noun_form("nom_p", "plural", true)
	elseif overall_adj then
		if article then
			if not fem_sg_only then
				do_noun_form("wk_nom_s", "definite nominative", true, nil, nil, get_nom_articles(alternant_multiword_spec))
			end
			do_noun_form("wk_gen_s", "definite genitive", true, nil, nil, get_gen_s_articles(alternant_multiword_spec))
			do_noun_form("wk_nom_p", "definite plural", not proper, nil, nil, "]")
		else
			do_noun_form("wk_nom_s", "definite nominative", true, nil, nil, get_nom_articles(alternant_multiword_spec))
			do_noun_form("str_gen_s", "genitive", true, nil, nil, not saw_f and "(])" or nil)
			if saw_f then
				do_noun_form("wk_gen_s", "definite genitive", true, nil, nil, get_gen_s_articles(alternant_multiword_spec))
			end
			do_noun_form("str_nom_p", "plural", not proper)
			do_noun_form("wk_nom_p", "definite plural", nil, nil, nil, "]")
		end
	else
		if article then
			do_noun_form("gen_s", "definite genitive", true, nil, nil, get_gen_s_articles(alternant_multiword_spec))
			do_noun_form("nom_p", "definite plural", not proper, nil, nil, "]")
		else
			do_noun_form("gen_s", "genitive", true)
			do_noun_form("nom_p", "plural", not proper)
		end
	end
	-- FIXME: Should we include the article in the singular equivalent if .article is given? I have no examples to go by.
	do_noun_form("sg", "singular")
	do_noun_form("dim", "diminutive", nil, "diminutive", {"n"}, article and "]" or nil)
	do_noun_form("m", "masculine", nil, nil, nil, article and "]" or nil)
	do_noun_form("f", "feminine", nil, "feminine", nil, article and "]" or nil)
	do_noun_form("n", "neuter", nil, "neuter", nil, article and "]" or nil)

	-- Add categories.
	for _, cat in ipairs(alternant_multiword_spec.categories) do
		table.insert(data.categories, cat)
	end

	-- Use the "linked" form of the lemma as the head if no head= explicitly given.
	data.no_redundant_head_cat = true -- always set since we have a different lemma linking algorithm from ].
	if #data.heads == 0 then
		data.heads = {}
		local lemmas = m_de_noun.get_lemmas(alternant_multiword_spec, "linked variant")
		for _, lemma_obj in ipairs(lemmas) do
			local head = alternant_multiword_spec.args.nolinkhead and lemma_obj.form or
				require(headword_utilities_module).add_links_to_multiword_term(lemma_obj.form,
					{split_hyphen_when_space = alternant_multiword_spec.args.splithyph})
			if article and (not overall_adj or fem_sg_only) then
				head = get_nom_articles(alternant_multiword_spec) .. " " .. head
			end
			local quals, refs = require(inflection_utilities_module).
				convert_footnotes_to_qualifiers_and_references(lemma_obj.footnotes)
			table.insert(data.heads, {term = head, q = quals, refs = refs})
		end
	end
end

pos_functions = function(class, args, data)
	return pos_functions.nouns(class, args, data, "proper noun")
end

pos_functions.verbs = function(class, args, data)
	if args then -- old-style
		local params = {
			 = {list = "pres", required = true},
			 = {list = "pres\1_qual", allow_holes = true},
			 = {list = "past", required = true},
			 = {list = "past\1_qual", allow_holes = true},
			 = {list = "pp", required = true},
			 = {list = "pp\1_qual", allow_holes = true},
			 = {list = "pastsubj"},
			 = {list = "pastsubj\1_qual", allow_holes = true},
			 = {list = true},
			 = {list = "aux\1_qual", allow_holes = true},
			 = {list = true},
			 = {list = true},
		}

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

		local function collect_forms(label, accel_form, forms, qualifiers)
			if forms == "-" then
				return {label = "no " .. label}
			else
				-- Disable this for now as deduplication between heardword and conjugation table doesn't work correctly.
				-- local into_table = accel_form and {label = label, accel = {form = accel_form}} or {label = label}
				local into_table = {label = label}
				for i, form in ipairs(forms) do
					table.insert(into_table, {term = form, q = qualifiers and {qualifiers} or nil})
				end
				return into_table
			end
		end

		if #args.class > 0 then
			local class_descs, cats = require("Module:de-verb").process_verb_classes(args.class)
			for _, cats in ipairs(cats) do
				table.insert(data.categories, cats)
			end
			table.insert(data.inflections, {label = require("Module:table").serialCommaJoin(class_descs, {conj = "or"})})
		end
		table.insert(data.inflections, collect_forms("third-person singular present", "3|s|pres", args, args.pres_qual))
		table.insert(data.inflections, collect_forms("past tense", "1//3|s|pret", args, args.past_qual))
		table.insert(data.inflections, collect_forms("past participle", "perf|part", args, args.pp_qual))
		if #args > 0 then
			table.insert(data.inflections, collect_forms("past subjunctive", "1//3|s|sub|II", args, args.pastsubj_qual))
		end
		if #args.aux > 0 then
			table.insert(data.inflections, collect_forms("auxiliary", nil, args.aux, args.aux_qual))
		end
		return
	end

	local function get_headword_inflection(forms, label, accel_form)
		if forms then
			-- Disable this for now as deduplication between heardword and conjugation table doesn't work correctly.
			-- local inflection = accel_form and {label = label, accel = {form = accel_form}} or {label = label}
			local inflection = {label = label}
			for _, form in ipairs(forms) do
				local qualifiers
				if form.footnotes then
					qualifiers = {}
					for _, footnote in ipairs(form.footnotes) do
						footnote = footnote:gsub("^%$", "%1")
						table.insert(qualifiers, footnote)
					end
				end
				table.insert(inflection, {term = form.form, q = qualifiers})
			end
			return inflection
		elseif label then
			return {label = "no " .. label}
		else
			return {}
		end
	end

	local alternant_multiword_spec = require("Module:de-verb").do_generate_forms(args, "from headword")
	for _, cat in ipairs(alternant_multiword_spec.categories) do
		table.insert(data.categories, cat)
	end
	table.insert(data.inflections, {label = table.concat(alternant_multiword_spec.verb_types, " or ")})

	if #data.heads == 0 then
		data.no_redundant_head_cat = true
		for _, head in ipairs(alternant_multiword_spec.forms.infinitive_linked) do
			table.insert(data.heads, head.form)
		end
	end
	table.insert(data.inflections, get_headword_inflection(alternant_multiword_spec.forms.pres_3s,
		"third-person singular present", "3|s|pres"))
	local pret_3s = alternant_multiword_spec.forms.pret_3s
	table.insert(data.inflections, get_headword_inflection(pret_3s, "past tense", "1//3|s|pret"))
	table.insert(data.inflections, get_headword_inflection(alternant_multiword_spec.forms.perf_part,
		"past participle", "perf|part"))
	-- See if we need the past subjunctive, i.e. there exist past subjunctive forms whose stem is not the
	-- same as some past tense form. To facilitate comparison, we truncate final -e in both preterite 3s
	-- and past subjunctive 3s, to handle cases like subjunctive 'ginge aus' vs. preterite 'ging aus'.
	-- We need to compare 3s forms (and not e.g. 3p forms, where the issue with truncating -e doesn't
	-- occur) so we work correctly with impersonal verbs.
	local need_past_subj
	local truncated_pret_3s_forms = {}
	if pret_3s then
		for _, form in ipairs(pret_3s) do
			local truncated_form = form.form:gsub("e$", ""):gsub("e ", " ") -- discard 2nd retval
			table.insert(truncated_pret_3s_forms, truncated_form)
		end
	end
	local subii_3s = alternant_multiword_spec.forms.subii_3s
	local truncated_subii_3s_forms = {}
	if subii_3s then
		for _, form in ipairs(subii_3s) do
			local truncated_form = form.form:gsub("e$", ""):gsub("e ", " ") -- discard 2nd retval
			table.insert(truncated_subii_3s_forms, truncated_form)
		end
	end
	for _, past_subj_form in ipairs(truncated_subii_3s_forms) do
		local saw_same = false
		for _, pret_3s_form in ipairs(truncated_pret_3s_forms) do
			if past_subj_form == pret_3s_form then
				saw_same = true
				break
			end
		end
		if not saw_same then
			need_past_subj = true
			break
		end
	end
	if need_past_subj then
		table.insert(data.inflections, get_headword_inflection(subii_3s, "past subjunctive", "1//3|s|sub|II"))
	end

	local auxes = alternant_multiword_spec.forms.aux
	table.insert(data.inflections, get_headword_inflection(auxes, "auxiliary"))
end

return export
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