Modul:category tree/poscatboiler/data/lang-specific/dok

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This is the documentation page for the main language-specific data module for Module:category tree/poscatboiler, as well as for its submodules. Collectively, these modules handle generating the descriptions and categorization for language-specific category pages of the format "LANG LABEL" (e.g. Category:Bulgarian conjugation 2.1 verbs and Category:Russian velar-stem neuter-form nouns). "Language-specific" means that the category labels (in these examples, "conjugation 2.1 verbs" and "velar-stem neuter-form nouns") are specialized to apply only to particular languages, unlike a category such as Category:Bulgarian verbs or Category:Russian nouns, where the labels "verbs" and "nouns" apply to all languages.

To understand how these data modules work, you should first familiarize yourself with how poscatboiler labels and handlers work in general. See Module:category tree/poscatboiler/data/documentation for information on this.

Language-specific labels and handlers work almost identically to non-language-specific labels and handlers. Labels have the same fields, and handlers are called with the same arguments and should return the same types of objects. The only real difference is that language-specific categories don't normally have corresponding umbrella categories, so there is no need to set the umbrella or umbrella_parents fields.

The language-specific module for a given language should be named Module:category tree/poscatboiler/data/lang-specific/LANGCODE where LANGCODE is the language code for the language in question, e.g. Module:category tree/poscatboiler/data/lang-specific/bg for Bulgarian. To add a new data submodule, copy an existing submodule and modify its contents. Then, add its language code to the langs_with_modules list at the top of Module:category tree/poscatboiler/data/lang-specific. Note that the module for a given language is only loaded when a category referencing that particular language is encountered and the category's label is unrecognized.

	The text of any category page using this module should simply read `{{auto cat}}`.
	The correct way to invoke this module on a given category page that it handles is through `{{auto cat}}`. You should not normally invoke `{{poscatboiler}}` directly. If you find a category page that directly invokes `{{poscatboiler}}`, it is probably old, from before when `{{auto cat}}` was created, and should be changed.

Adding, removing or modifying categories

A sample entry is as follows (in this case, found in Module:category tree/poscatboiler/data/lang-specific/be):

labels["verbs by class and accent pattern"] = {
	description = "Belarusian verbs categorized by class and accent pattern.",
	parents = {{name = "verbs by inflection type", sort = "class and accent pattern"}},
}

See Module:category tree/poscatboiler/data/documentation for more information.

Handlers

A sample handler follows (in this case for Belarusian categories of the form Category:Belarusian class 2 verbs or Category:Belarusian class 4c verbs):

table.insert(handlers, function(data)
	local cls, pattern = data.label:match("^class ([0-9]*)([abc]?) verbs")
	if cls then
		if pattern == "" then
			return {
				description = "Belarusian class " .. cls .. " verbs.",
				breadcrumb = cls,
				parents = {{name = "verbs by class", sort = cls}},
			}
		else
			return {
				description = "Belarusian class " .. cls .. " verbs of " ..
					"accent pattern " .. pattern .. ". " .. (
					pattern == "a" and "With this pattern, all forms are stem-stressed."
					or pattern == "b" and "With this pattern, all forms are ending-stressed."
					or "With this pattern, the first singular present indicative and all forms " ..
					"outside of the present indicative are ending-stressed, while the remaining " ..
					"forms of the present indicative are stem-stressed."
				),
				breadcrumb = cls .. pattern,
				parents = {
					{name = "class " .. cls .. " verbs", sort = pattern},
					{name = "verbs by class and accent pattern", sort = cls .. pattern},
				},
			}
		end
	end
end)

Another example, for categories like Category:Dutch prefixed verbs with ver-:

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

table.insert(handlers, function(data)
	local pref = data.label:match("^prefixed verbs with (.+%-)$")
	if pref then
		local link = require("Module:links").full_link({ lang = lang, term = pref }, "term")
		local altlink = require("Module:links").full_link({ lang = lang, alt = pref }, "term")
		return {
			description = "Dutch prefixed verbs with the prefix " .. link .. ".",
			displaytitle = "Dutch prefixed verbs with " .. altlink,
			breadcrumb = altlink,
			parents = {{name = "prefixed verbs", sort = pref}},
		}
	end
end)

Here, we use displaytitle= to italicize the prefix in the title (and also italicize it in the breadcrumb and description).

See Module:category tree/poscatboiler/data/documentation for more information.

Adding, removing or modifying categories

Handlers

Subpages