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local export = {}

-- This module contains ancillary functions for manipulating labels. Currently the supported functions are for finding
-- the labels that generate a given category.

local m_labels = require("Module:labels")
local languages_module = "Module:languages"

--[==[
Find the labels matching category `cat` of type `cat_type` for language `lang` (a full language object). `lang` can be
{nil}, but in that case no language-specific labels will be fetched. Currently supported values for `cat_type` are
{"topic"} for topic categories, e.g. {en:Water}; {"pos"} for POS categories, e.g. {English attenuative verbs};
{"regional"} for regional categories, e.g. {Ghanaian English}; {"sense"} for sense-dependent categories, e.g.
{English obsolete terms} or {English terms with obsolete senses} (where the particular category chosen depends on
whether {{tl|lb}} or {{tl|tlb}} is used); and {"plain"} for plain categories, e.g. {Issime Walser}. The format of `cat`
depends on `cat_type`, but in general is the portion of the category minus the language prefix or suffix. For topic
categories it should be e.g. {"water"} or {"Water"} (either form works); for POS categories it should be e.g.
{"attenuative verbs"}; for regional categories it should be e.g. {"Ghanaian"}; for sense categories it should be e.g.
{"obsolete"}; and for plain categories it should be e.g. {"Issime Walser"} (the actual category name).

Note that this will only check for categories of the specified type. In particular, since the format of POS and
sense-dependent categories overlaps, you may need to check for labels with both types of categories. (This is done, for
example, in [[Module:category tree/poscatboiler]]; see that module for details.) Likewise with regional and plain
categories. (See the code in [[Module:category tree/poscatboiler/data/language varieties]] that handles both types of
categories.)

If `cat_type` is {"plain"} and `check_all_langs` is specified, the code will check all language-specific modules for
plan categories matching `cat`. In that case, the relevant language is returned in the return value structure (see
below).

The return value is a table whose keys are concatenations of labels and language codes (separated by a colon), and
whose values are objects with the following keys:
* `module` (the name of the module from which the label was fetched);
* `labdata` (the raw label data structure from this module);
* `canonical` (the canonical form of the label);
* `aliases` (a list of any aliases for the label, not including the label itself);
* `lang` (the language needed to generate the category using the label; this will always be the passed-in `lang` unless
`check_all_langs` is specified, in which case it may be a different language).

The table can be directly passed to `format_labels_categorizing`.
]==]
function export.find_labels_for_category(cat, cat_type, lang, check_all_langs)
local function ucfirst(txt)
return mw.getContentLanguage():ucfirst(txt)
end

local function transform_cat_for_comparison(cat)
if cat_type ~= "pos" and cat_type ~= "sense" then
cat = ucfirst(cat)
end
return cat
end

local function should_error_on_cat(cat)
if cat_type == "topic" then
return cat:find("^[Aa]ll ")
elseif cat_type == "pos" then
return cat == "lemmas"
elseif cat_type == "regional" then
return cat == "British" -- an arbitrary known regional category
elseif cat_type == "sense" then
return cat == "obsolete" -- an arbitrary known sense category
else
return cat == "Issime Walser" -- an arbitrary known plain category
end
end

local function labcat_matches(labcat)
if cat_type ~= "pos" and cat_type ~= "sense" then
return ucfirst(labcat) == cat
else
return labcat == cat
end
end

local function fetch_labdata_cats(labdata)
if cat_type == "topic" then
return labdata.topical_categories
elseif cat_type == "pos" then
return labdata.pos_categories
elseif cat_type == "regional" then
return labdata.regional_categories
elseif cat_type == "sense" then
return labdata.sense_categories
else
return labdata.plain_categories
end
end

cat = transform_cat_for_comparison(cat)

local cat_labels_found = {}
local prev_modules_labels_found = {}
local this_module_labels_found

local function check_submodule(submodule_to_check, lang)
if this_module_labels_found then
for label, _ in pairs(this_module_labels_found) do
prev_modules_labels_found[label] = true
end
end
this_module_labels_found = {}
local submodule = mw.loadData(submodule_to_check)
for label, labdata in pairs(submodule) do
local canonical = label
local num_hops = 0
local hop_error = false
while type(labdata) == "string" do
num_hops = num_hops + 1
if num_hops >= 10 then
if should_error_on_cat(cat) then
error(("Internal error: Likely alias loop processing label '%s' in submodule '%s'"):format(label, submodule_to_check))
else
hop_error = true
break
end
end
-- an alias
canonical = labdata
labdata = submodule[labdata]
end
if hop_error then
-- skip this label
elseif not labdata then
if should_error_on_cat(cat) then
-- Only error at top level to avoid a flood of errors.
error(("Internal error: In submodule '%s', label '%s' is aliased to '%s', which doesn't exist"):format(submodule_to_check, label, canonical))
end
else
-- Deprecated labels directly assign an object to aliases, where `canonical` is the canonical label.
if labdata.canonical then
canonical = labdata.canonical
end
local labcats = fetch_labdata_cats(labdata)
local matching_labcat
if labcats then
if type(labcats) ~= "table" then
labcats = {labcats}
end
for _, labcat in ipairs(labcats) do
if labcat == true then
labcat = canonical
end
if labcat_matches(labcat) then
matching_labcat = true
break
end
end
end
local canonical_with_lang = canonical .. ":" .. (lang and lang:getCode() or "nil")
if matching_labcat and not prev_modules_labels_found[canonical_with_lang] then
this_module_labels_found[canonical_with_lang] = true
if not cat_labels_found[canonical_with_lang] then
cat_labels_found[canonical_with_lang] = {
module = submodule_to_check, canonical = canonical,
aliases = {}, lang = lang, labdata = labdata
}
end
if canonical ~= label then
table.insert(cat_labels_found[canonical_with_lang].aliases, label)
end
end
end
end
end

local submodules_to_check
if check_all_langs then
if cat_type ~= "plain" then
error("Currently, `check_all_langs` only supported with category type \"plain\"")
end
submodules_to_check = {}
local all_lang_codes = mw.loadData(m_labels.lang_specific_data_list_module)
for lang_code, _ in pairs(all_lang_codes.langs_with_lang_specific_modules) do
local lang = require(languages_module).getByCode(lang_code)
if lang then
table.insert(submodules_to_check, {
module = m_labels.lang_specific_data_modules_prefix .. lang_code,
lang = lang
})
end
end
for _, submodule_to_check in ipairs(m_labels.get_submodules(nil)) do
table.insert(submodules_to_check, {module = submodule_to_check, lang = lang})
end
else
submodules_to_check = m_labels.get_submodules(lang)
for i, submodule_to_check in ipairs(submodules_to_check) do
submodules_to_check[i] = {module = submodule_to_check, lang = lang}
end
end
for _, submodule_to_check in ipairs(submodules_to_check) do
check_submodule(submodule_to_check.module, submodule_to_check.lang)
end

return cat_labels_found
end

--[==[
Format the labels that categorize into some category for display in the text for that category. `lang` is the
language of the category, or {nil}. `labels` are the labels that categorize when invoked using {{tl|lb}}, while
`tlb_labels` are the labels that categorize when invoked using {{tl|tlb}}. Both of these parameters are tables whose
keys are concatenations of labels and language codes and whose values are objects as returned by
`find_labels_for_category`. Returns {nil} if there are no labels.
]==]
function export.format_labels_categorizing(labels, tlb_labels, lang)
local function make_code(txt)
return ("<code>%s</code>"):format(txt)
end
local function generate_label_set_text(labels, use_tlb, include_in_addition)
local labels_by_lang = {}
for _, labobj in pairs(labels) do
local labobj_code = labobj.lang and labobj.lang:getCode() or false
if not labels_by_lang[labobj_code] then
labels_by_lang[labobj_code] = {}
end
table.insert(labels_by_lang[labobj_code], labobj)
end

local function process_lang_labels(labels)
local formatted_labels = {}
local has_aliases = false
if labels then
for _, labobj in ipairs(labels) do
local function make_edit_button()
return ("<sup>[%s edit]</sup>"):format(tostring(mw.uri.fullUrl(labobj.module, "action=edit")))
end
local label = labobj.canonical
local aliases = labobj.aliases
if #aliases == 0 then
table.insert(formatted_labels, make_code(label) .. make_edit_button())
elseif #aliases == 1 then
table.insert(formatted_labels,
("%s (alias %s)%s"):format(make_code(label), make_code(aliases[1]), make_edit_button()))
has_aliases = true
else
table.sort(aliases)
for i, alias in ipairs(aliases) do
aliases[i] = make_code(alias)
end
table.insert(formatted_labels,
("%s (aliases %s)%s"):format(make_code(label),table.concat(aliases, ", "), make_edit_button()))
has_aliases = true
end
end
end
return formatted_labels, has_aliases
end

local function get_intro_text(num_labels, include_also)
local intro_wording = not include_also and include_in_addition and "In addition, the" or "The"
local sense_dependent = use_tlb and "sense-dependent " or ""
return ("%s following %slabel%s %sgenerate%s this category:"):format(intro_wording,
sense_dependent, num_labels == 1 and "" or "s",
include_also and "also " or "", num_labels == 1 and "s" or "")
end

local function get_label_text(label_lang, formatted_labels, has_aliases)
table.sort(formatted_labels)
local retval = table.concat(formatted_labels, "; ") .. ". "
local template = use_tlb and "tlb" or "lb"
local this_label_text
if #formatted_labels == 1 and not has_aliases then
this_label_text = "this label"
else
this_label_text = "one of these labels"
end
if label_lang then
retval = retval .. ("To generate this category using %s, use {{tl|%s|%s|<var>label</var>}}."):format(
this_label_text, template, label_lang:getCode())
else
retval = retval .. ("To generate this category using %s, use {{tl|%s|<var>langcode</var>|<var>label</var>}}, " ..
"where <code><var>langcode</var></code> is the appropriate language code for the language in question " ..
"(see [[Wiktionary:List of languages]])."):format(this_label_text, template)
end
return retval
end

if not lang then
local formatted_labels, has_aliases = process_lang_labels(labels_by_lang[false])
if #formatted_labels > 0 then
local intro_text = get_intro_text(#formatted_labels)
local label_text = get_label_text(false, formatted_labels, has_aliases)
return intro_text .. " " .. label_text
end
else
local formatted_labels, has_aliases = process_lang_labels(labels_by_lang[lang:getCode()])
local this_lang_text
if #formatted_labels > 0 then
local intro_text = get_intro_text(#formatted_labels)
local label_text = get_label_text(lang, formatted_labels, has_aliases)
this_lang_text = intro_text .. " " .. label_text
end
local langcode = lang:getCode()
local other_langs_label_text = {}
local total_num_other_lang_labels = 0
for other_lang_code, lang_labels in pairs(labels_by_lang) do
if other_lang_code ~= langcode then
local formatted_labels, has_aliases = process_lang_labels(lang_labels)
if #formatted_labels > 0 then
total_num_other_lang_labels = total_num_other_lang_labels + #formatted_labels
local other_lang = require(languages_module).getByCode(other_lang_code, true, "allow etym")
local label_text = get_label_text(other_lang, formatted_labels, has_aliases)
table.insert(other_langs_label_text,
("* For %s: %s"):format(other_lang:getCanonicalName(), label_text))
end
end
end
local other_lang_text
if total_num_other_lang_labels > 0 then
table.sort(other_langs_label_text)
local intro_text = get_intro_text(total_num_other_lang_labels, this_lang_text and "include also")
other_lang_text = intro_text .. "\n" .. table.concat(other_langs_label_text, "\n")
end
if this_lang_text and other_lang_text then
return ("%s\n\n%s"):format(this_lang_text, other_lang_text)
else
return this_lang_text or other_lang_text
end
end
end

local labels_text = generate_label_set_text(labels)
local tlb_labels_text = tlb_labels and
generate_label_set_text(tlb_labels, "use tlb", labels_text and "include in addition") or nil
if labels_text and tlb_labels_text then
return ("%s\n\n%s"):format(labels_text, tlb_labels_text)
else
return labels_text or tlb_labels_text
end
end

return export

Module:labels/utilities - Revision history

Sware: 1 revision imported

wikt>Surjection: Changed protection settings for "Module:labels/utilities" ([Edit=Allow only template editors and administrators] (indefinite) [Move=Allow only template editors and administrators] (indefinite))