local export = {}
local d_languages = mw.loadData("Module:languages/data")
local d = mw.loadData("Module:auto cat/data")
local d_cats, d_pos = d.cats, d.pos
-- Alternative to mw.ustring.gsub that is neater to call in code
-- and can handle multiple replacements at once.
local function replace(str, gsubs)
for from, to in pairs(gsubs) do
str = tostring(mw.ustring.gsub(str, from, to))
end
return str
end
-- Sanitizes a string containing hyphens so that the hyphens
-- do not count as Lua pattern special characters
local function sanitize(str)
return tostring(mw.ustring.gsub(str, "%-", "%-"))
end
-- Takes a Lua pattern and a table of categories and returns
-- the auto-cat-style table format required, containing the
-- given data
local function to_pattern(pattern, categories)
return {"^" .. pattern .. "$", categories}
end
-- provides initial capitalisation
local function capitalize(word)
if mw.ustring.len(word) > 1 then
return mw.ustring.upper(mw.ustring.sub(word, 1, 1)) .. mw.ustring.sub(word, 2)
elseif mw.ustring.len(word) == 1 then
return mw.ustring.upper(word)
end
error("Empty input for capitalisation")
end
local function pluralize(word)
local ending = mw.ustring.sub(word, -1)
if ending == "h" and mw.ustring.sub(word, -2, -1) == "s" then ending = "sh" end
if ending == "s" or ending == "z" or ending == "x" or ending == "sh" then
return word .. "es"
end
return word .. "s"
end
-- Expands a pattern containing %l (and optionally %u), adding versions
-- of the pattern for each possible language
local function hydrate_pattern_l(out_patterns, p_lua, p_categories, also_u, also_p)
for _, l_data in pairs(d_languages) do
if also_p then
for _, pos in ipairs(d_pos) do
if also_u then
for _, l2_data in pairs(d_languages) do
if l2_data.code ~= l_data.code then
local p_out_cats = {}
for _, p_cat in ipairs(p_categories) do
table.insert(p_out_cats, capitalize(replace(p_cat, {["%%l"] = l_data.name, ["%%u"] = l2_data.name, ["%%ps"] = pluralize(pos), ["%%p"] = pos})))
end
table.insert(out_patterns, to_pattern(capitalize(replace(p_lua, {["%%l"] = sanitize(l_data.name), ["%%u"] = sanitize(l2_data.name), ["%%ps"] = pluralize(pos), ["%%p"] = pos})), p_out_cats))
end
end
else
local p_out_cats = {}
for _, p_cat in ipairs(p_categories) do
table.insert(p_out_cats, capitalize(replace(p_cat, {["%%l"] = l_data.name, ["%%ps"] = pluralize(pos), ["%%p"] = pos})))
end
table.insert(out_patterns, to_pattern(capitalize(replace(p_lua, {["%%l"] = sanitize(l_data.name), ["%%ps"] = pluralize(pos), ["%%p"] = pos})), p_out_cats))
end
end
else
if also_u then
for _, l2_data in pairs(d_languages) do
if l2_data.code ~= l_data.code then
local p_out_cats = {}
for _, p_cat in ipairs(p_categories) do
table.insert(p_out_cats, replace(p_cat, {["%%l"] = l_data.name, ["%%u"] = l2_data.name}))
end
table.insert(out_patterns, to_pattern(replace(p_lua, {["%%l"] = sanitize(l_data.name), ["%%u"] = sanitize(l2_data.name)}), p_out_cats))
end
end
else
local p_out_cats = {}
for _, p_cat in ipairs(p_categories) do
table.insert(p_out_cats, replace(p_cat, {["%%l"] = l_data.name}))
end
table.insert(out_patterns, to_pattern(replace(p_lua, {["%%l"] = sanitize(l_data.name)}), p_out_cats))
end
end
end
end
local function hydrate_pattern_c(out_patterns, p_lua, p_categories)
for l_code, l_data in pairs(d_languages) do
local p_out_cats = {}
for _, p_cat in ipairs(p_categories) do
table.insert(p_out_cats, replace(p_cat, {["%%l"] = l_data.name, ["%%c"] = l_code}))
end
table.insert(out_patterns, to_pattern(replace(p_lua, {["%%c"] = l_code}), p_out_cats))
end
end
local function hydrate_pattern_p(out_patterns, p_lua, p_categories)
for _, pos in ipairs(d_pos) do
local p_out_cats = {}
for _, p_cat in ipairs(p_categories) do
table.insert(p_out_cats, capitalize(replace(p_cat, {["%%ps"] = pluralize(pos), ["%%p"] = pos})))
end
table.insert(out_patterns, to_pattern(capitalize(replace(p_lua, {["%%ps"] = pluralize(pos), ["%%p"] = pos})), p_out_cats))
end
end
local function hydrate_patterns()
local out_patterns = {}
for _, p_data in ipairs(d_cats) do
local p_template, p_categories = p_data[1], p_data[2]
local p_lua = replace(sanitize(p_template), {["%%s"] = "(..-)"})
if mw.ustring.find(p_template, "%%l") ~= nil then
hydrate_pattern_l(out_patterns, p_lua, p_categories, mw.ustring.find(p_template, "%%u") ~= nil, mw.ustring.find(p_template, "%%p") ~= nil)
elseif mw.ustring.find(p_template, "%%c") ~= nil then
hydrate_pattern_c(out_patterns, p_lua, p_categories)
elseif mw.ustring.find(p_template, "%%p") ~= nil then
hydrate_pattern_p(out_patterns, p_lua, p_categories)
else
table.insert(out_patterns, to_pattern(capitalize(p_lua, p_categories)))
end
end
return out_patterns
end
local function process_category(category_name, p_lua, p_categories)
local out = ""
local is_s = mw.ustring.find(p_lua, "%(%.%.%-%)") ~= nil
local _, _, s_match = mw.ustring.find(category_name, p_lua)
for _, p_category in ipairs(p_categories) do
out = out .. "[[Category:" .. (is_s and replace(p_category, {["%%s"] = s_match}) or p_category) .. "]]"
end
return out
end
function export.auto_cat(category_name)
local lua_patterns = hydrate_patterns()
for _, p_data in ipairs(lua_patterns) do
local p_lua, p_categories = p_data[1], p_data[2]
if mw.ustring.find(category_name, p_lua) ~= nil then
return process_category(category_name, p_lua, p_categories)
end
end
return "[[Category:Category pages not matched by auto cat]]"
end
function export.show(frame)
local title_obj = mw.title.getCurrentTitle()
if title_obj.nsText ~= "Category" then
error("{{auto cat}} can only be used on pages in the Category namespace")
end
return export.auto_cat(title_obj.text)
end
return export