模組:utilities
可在模組:utilities/doc建立此模組的說明文件
local decode = mw.text.decode
local u = mw.ustring.char
local data = mw.loadData("Module:utilities/data")
local notneeded = data.notneeded
local neededhassubpage = data.neededhassubpage
local export = {}
function export.require_when_needed(text)
return setmetatable({}, {
__index = function(t, k)
t = require(text)
return t[k]
end,
__call = function(t, ...)
t = require(text)
return t(...)
end
})
end
-- A helper function to escape magic characters in a string.
-- Magic characters: ^$()%.[]*+-?
function export.pattern_escape(text)
if type(text) == "table" then
text = text.args[1]
end
return (text:gsub("[%^$()%%.[%]*+%-?]", "%%%0"))
end
-- A helper function to resolve HTML entities into plaintext.
do
local entities
local function get_named_entity(entity)
entities = entities or mw.loadData("Module:data/entities")
return entities[entity]
end
-- Catches entities with capital X, which aren't supported by default.
local function get_numbered_entity(entity)
entity = entity:lower()
local ret = decode(entity)
if ret ~= entity then
return ret
end
end
function export.get_entities(text)
return (text:gsub("&([^#&;]+);", get_named_entity)
:gsub("&#[Xx]?%x+;", get_numbered_entity)
)
end
end
-- A helper function to convert plaintext into HTML entities where these match the characters given in set.
-- By default, this resolves any pre-existing entities into plaintext first, to allow mixed input and to avoid accidental double-conversion. This can be turned off with the raw parameter.
function export.make_entities(text, set, raw)
text = not raw and export.get_entities(text) or text
return mw.text.encode(text, set)
end
-- A helper function to return the content of a page section.
-- `content` is raw wikitext, `name` is the requested section, and `level` is an optional parameter that specifies the required section heading level. If `level` is not supplied, then the first section called `name` is returned.
-- `name` can either be a string or table of section names. If a table, each name represents a section that has the next as a subsection. For example, {"Spanish", "Noun"} will return the first matching section called "Noun" under a section called "Spanish". These do not have to be at adjacent levels ("Noun" might be L4, while "Spanish" is L2). If `level` is given, it refers to the last name in the table (i.e. the name of the section to be returned).
-- The returned section includes all of its subsections.
-- If no matching section is found, returns nil.
function export.get_section(content, names, level)
local trim = mw.text.trim
local function _section(content, name, level)
if not (content and name) then
return nil
elseif level and level > 6 then
error("Heading level cannot be greater than 6.")
elseif name:find("[\n\r]") then
error("Heading name cannot contain a newline.")
end
name = trim(name)
local start
for loc, lvl, sec in content:gmatch("()%f[^%z\n\r](=+)([^\n\r]+)%2[\t ]*%f[%z\n\r]") do
lvl = #lvl
if not start then
if lvl > 6 then
local ex = ("="):rep(lvl - 6)
sec = ex .. sec .. ex
lvl = 6
end
if (
(not level or lvl == level) and
trim(sec) == name
) then
start = loc
level = lvl
end
elseif level == 6 or lvl <= level then
return content:sub(start, loc - 1)
end
end
return start and content:sub(start)
end
if type(names) == "string" then
return _section(content, names, level)
else
local names_len = #names
if names_len > 6 then
error("Not possible specify more than 5 subsections: headings only go up to level 6.")
end
for i, name in ipairs(names) do
if i == names_len then
content = _section(content, name, level)
else
content = _section(content, name)
end
end
return content
end
end
-- A helper function to strip wiki markup, giving the plaintext of what is displayed on the page.
function export.get_plaintext(text)
text = text
:gsub("%[%[", "\1")
:gsub("%]%]", "\2")
-- Remove strip markers and HTML tags.
text = mw.text.unstrip(text)
:gsub("<[^<>\1\2]+>", "")
-- Parse internal links for the display text, and remove categories.
text = require("Module:links").remove_links(text)
-- Remove files.
for _, falsePositive in ipairs({"File", "Image"}) do
text = text:gsub("\1" .. falsePositive .. ":[^\1\2]+\2", "")
end
-- Parse external links for the display text.
text = text:gsub("%[(https?://[^%[%]]+)%]",
function(capture)
return capture:match("https?://[^%s%]]+%s([^%]]+)") or ""
end)
text = text
:gsub("\1", "[[")
:gsub("\2", "]]")
-- Any remaining square brackets aren't involved in links, but must be escaped to avoid creating new links.
text = text:gsub("[%[%]]", mw.text.nowiki)
-- Strip bold, italics and soft hyphens.
text = text
:gsub("('*)'''(.-'*)'''", "%1%2")
:gsub("('*)''(.-'*)''", "%1%2")
:gsub("", "")
-- Get any HTML entities.
-- Note: don't decode URL percent encoding, as it shouldn't be used in display text and may cause problems if % is used.
text = export.get_entities(text)
return mw.text.trim(text)
end
function export.plain_gsub(text, pattern, replacement)
local invoked = false
if type(text) == "table" then
invoked = true
if text.args then
local frame = text
local params = {
[1] = {},
[2] = {},
[3] = { allow_empty = true },
}
local args = require("Module:parameters").process(frame.args, params, nil, "utilities", "plain_gsub")
text = args[1]
pattern = args[2]
replacement = args[3]
else
error("If the first argument to plain_gsub is a table, it should be a frame object.")
end
else
if not ( type(pattern) == "string" or type(pattern) == "number" ) then
error("The second argument to plain_gsub should be a string or a number.")
end
if not ( type(replacement) == "string" or type(replacement) == "number" ) then
error("The third argument to plain_gsub should be a string or a number.")
end
end
pattern = export.pattern_escape(pattern)
local gsub = require("Module:string utilities").gsub
if invoked then
return (gsub(text, pattern, replacement))
else
return gsub(text, pattern, replacement)
end
end
--[[
Format the categories with the appropriate sort key. CATEGORIES is a list of
categories.
-- LANG is an object encapsulating a language; if nil, the object for
language code 'und' (undetermined) will be used.
-- SORT_KEY is placed in the category invocation, and indicates how the
page will sort in the respective category. Normally this should be nil,
and a default sort key based on the subpage name (the part after the
colon) will be used.
-- SORT_BASE lets you override the default sort key used when SORT_KEY is
nil. Normally, this should be nil, and a language-specific default sort
key is computed from the subpage name (e.g. for Russian this converts
Cyrillic ё to a string consisting of Cyrillic е followed by U+10FFFF,
so that effectively ё sorts after е instead of the default Wikimedia
sort, which (I think) is based on Unicode sort order and puts ё after я,
the last letter of the Cyrillic alphabet.
-- FORCE_OUTPUT forces normal output in all namespaces. Normally, nothing
is output if the page isn't in the main, Appendix:, Reconstruction: or
Citations: namespaces.
-- SC is a script object; if nil, the default will be used from the sort
base.
]]
function export.format_categories(categories, lang, sort_key, sort_base, force_output, sc)
if type(lang) == "table" and not lang.getCode then
error("The second argument to format_categories should be a language object.")
end
local title_obj = mw.title.getCurrentTitle()
local allowedNamespaces = {
[0] = true, [100] = true, [110] = true, [114] = true, [118] = true -- (main), Appendix, Thesaurus, Citations, Reconstruction
}
if force_output or allowedNamespaces[title_obj.namespace] or title_obj.prefixedText == "Wiktionary:Sandbox" then
local headword_data = mw.loadData("Module:headword/data")
local pagename = headword_data.pagename
local pagename_defaultsort = headword_data.pagename_defaultsort
-- Generate a default sort key.
if sort_key ~= "-" then
if not lang then
lang = require("Module:languages").getByCode("und")
end
sort_base = (lang:makeSortKey(sort_base or pagename, sc))
if sort_key and sort_key ~= "" then
-- Gather some statistics regarding sort keys
if not no_track and sort_key:uupper() == sort_base then
table.insert(categories, "Sort key tracking/redundant")
end
else
sort_key = sort_base
end
-- If the sort key is empty, remove it.
if sort_key == "" then
sort_key = nil
end
-- If the sort key is "-", bypass the process of generating a sort key altogether. This is desirable when categorising (e.g.) translation requests, as the pages to be categorised are always in English/Translingual.
else
sort_key = sort_base and sort_base:uupper() or pagename_defaultsort
end
local out_categories = {}
for key, cat in ipairs(categories) do
out_categories[key] = "[[Category:" .. cat .. (sort_key and "|" .. sort_key or "") .. "]]"
end
return table.concat(out_categories, "")
else
return ""
end
end
function export.catfix(lang, sc)
if not lang then
require("Module:debug").track("catfix/no lang")
return nil
elseif type(lang) ~= "table" then
require("Module:debug").track("catfix/lang not table")
return nil
end
local canonicalName = lang:getCanonicalName() or error('The first argument to the function "catfix" should be a language object from Module:languages.')
if sc and not sc.getCode then
error('The second argument to the function "catfix" should be a script object from Module:scripts.')
end
-- To add script classes to links on pages created by category boilerplate templates.
if not sc then
sc = data.catfix_scripts[lang:getCode()]
if sc then
sc = require("Module:scripts").getByCode(sc)
end
end
return "<span id=\"catfix\" style=\"display:none;\" class=\"CATFIX-" .. mw.uri.anchorEncode(canonicalName) .. "\">" ..
require("Module:script utilities").tag_text(" ", lang, sc, nil) ..
"</span>"
end
function export.catfix_template(frame)
local params = {
[1] = {},
[2] = { alias_of = "sc" },
["sc"] = {},
}
local args = require("Module:parameters").process(frame:getParent().args, params, nil, "utilities", "catfix_template")
local lang = require("Module:languages").getByCode(args[1]) or require("Module:languages").err(args[1], 1)
local sc = args.sc
if sc then
sc = require("Module:scripts").getByCode(sc) or error('The script code "' .. sc .. '", provided in the second parameter, is not valid.')
end
return export.catfix(lang, sc)
end
-- Not exporting because it is not used yet.
local function getDateTense(frame)
local name_num_mapping = {["January"] = 1, ["February"] = 2, ["March"] = 3, ["April"] = 4, ["May"] = 5, ["June"] = 6,
["July"] = 7, ["August"] = 8, ["September"] = 9, ["October"] = 10, ["November"] = 11, ["December"] = 12,
[1] = 1, [2] = 2, [3] = 3, [4] = 4, [5] = 5, [6] = 6, [7] = 7, [8] = 8, [9] = 9, [10] = 10, [11] = 11, [12] = 12}
local month = name_num_mapping[frame.args[2]]
local date = os.time({year = frame.args[1], day = frame.args[3], month = month})
local today = os.time() -- 12 AM/PM
local diff = os.difftime(date, today)
local daylength = 24 * 3600
if diff < -daylength / 2 then return "past"
else
if diff > daylength / 2 then return "future"
else return "present" end
end
end
function export.make_id(lang, str)
--[[ If called with invoke, first argument is a frame object.
If called by a module, first argument is a language object. ]]
local invoked = false
if type(lang) == "table" then
if lang.args then
invoked = true
local frame = lang
local params = {
[1] = {},
[2] = {},
}
local args = require("Module:parameters").process(frame:getParent().args, params, nil, "utilities", "make_id")
local langCode = args[1]
str = args[2]
local m_languages = require("Module:languages")
lang = m_languages.getByCode(langCode) or m_languages.err(langCode, 1)
elseif not lang.getCanonicalName then
error("The first argument to make_id should be a language object.")
end
end
if not ( type(str) == "string" or type(str) == "number" ) then
error("The second argument to make_id should be a string or a number.")
end
local id = require("Module:senseid").anchor(lang, str)
if invoked then
return '<li class="senseid" id="' .. id .. '">'
else
return id
end
end
-- Given a type (as a string) and an arbitrary number of entities, checks whether all of those entities are language, family, script, writing system or Wikimedia language objects. Useful for error handling in functions that require one of these kinds of object.
-- If noErr is set, the function returns false instead of throwing an error, which allows customised error handling to be done in the calling function.
function export.check_object(typ, noErr, ...)
local function fail(message)
if noErr then
return false
else
error(message, 3)
end
end
local objs = {...}
if #objs == 0 then
return fail("Must provide at least one object to check.")
end
for _, obj in ipairs{...} do
if type(obj) ~= "table" or type(obj.hasType) ~= "function" then
return fail("Function expected a " .. typ .. " object, but received a " .. type(obj) .. " instead.")
elseif not (typ == "object" or obj:hasType(typ)) then
for _, wrong_type in ipairs{"family", "language", "script", "Wikimedia language", "writing system"} do
if obj:hasType(wrong_type) then
return fail("Function expected a " .. typ .. " object, but received a " .. wrong_type .. " object instead.")
end
end
return fail("Function expected a " .. typ .. " object, but received another type of object instead.")
end
end
return true
end
return export