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モジュール:Category handler (ソースを閲覧)

2015年12月6日 (日) 16:56時点における版

5,190 バイト除去 、 2015年12月6日 (日)
en:Module:Category handler 05:08, 22 July 2014‎(UTC)より
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(en:Module:Category handler 05:08, 22 July 2014‎(UTC)より)
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----------------------------------------------------------------------------------------------------------
--------------------------------------------------------------------------------
--                                                                                                     --
--                                                                           --
--                                         CATEGORY HANDLER                                           --
--                             CATEGORY HANDLER                             --
--                                                                                                     --
--                                                                           --
--      This module implements the {{category handler}} template in Lua, with a few improvements: all   --
--      This module implements the {{category handler}} template in Lua,     --
--      namespaces and all namespace aliases are supported, and namespace names are detected           --
--      with a few improvements: all namespaces and all namespace aliases    --
--      automatically for the local wiki. This module requires [[Module:Namespace detect]] and          --
--      are supported, and namespace names are detected automatically for    --
--      [[Module:Yesno]] to be available on the local wiki. It can be configured for different wikis    --
--      the local wiki. This module requires [[Module:Namespace detect]]     --
--      by altering the values in the "cfg" table.                                                      --
--      and [[Module:Yesno]] to be available on the local wiki. It can be     --
--                                                                                                     --
--      configured for different wikis by altering the values in             --
----------------------------------------------------------------------------------------------------------
--     [[Module:Category handler/config]], and pages can be blacklisted      --
--     from categorisation by using [[Module:Category handler/blacklist]].   --
----------------------------------------------------------------------------------------------------------
--                                                                           --
--                                          Configuration data                                          --
--------------------------------------------------------------------------------
--                      Language-specific parameter names and values can be set here.                  --
 
----------------------------------------------------------------------------------------------------------
-- Load required modules
local cfg = {}
-- The following config values set the names of parameters that suppress categorisation. They are used
-- with Module:Yesno, and work as follows:
--
-- cfg.nocat:
-- Result of yesno(args[cfg.nocat])        Effect
-- true                                    Categorisation is suppressed
-- false                                    Categorisation is allowed, and the blacklist check is skipped
-- nil                                      Categorisation is allowed
--
-- cfg.categories:
-- Result of yesno(args[cfg.categories])    Effect
-- true                                    Categorisation is allowed, and the blacklist check is skipped
-- false                                    Categorisation is suppressed
-- nil                                      Categorisation is allowed
cfg.nocat = 'nocat'   
cfg.categories = 'categories'
-- The parameter name for the legacy "category2" parameter. This skips the blacklist if set to the
-- cfg.category2Yes value, and suppresses categorisation if present but equal to anything other than
-- cfg.category2Yes or cfg.category2Negative.
cfg.category2 = 'category2'
cfg.category2Yes = 'yes'
cfg.category2Negative = '¬'
-- cfg.subpage is the parameter name to specify how to behave on subpages. cfg.subpageNo is the value to
-- specify to not categorise on subpages; cfg.only is the value to specify to only categorise on subpages.
cfg.subpage = 'subpage'
cfg.subpageNo = 'no'
cfg.subpageOnly = 'only'
-- The parameter for data to return in all namespaces.
cfg.all = 'all'
-- The parameter name for data to return if no data is specified for the namespace that is detected. This
-- must be the same as the cfg.other parameter in [[Module:Namespace detect]].
cfg.other = 'other'
-- The parameter name used to specify a page other than the current page; used for testing and
-- demonstration. This must be the same as the cfg.page parameter in [[Module:Namespace detect]].
cfg.page = 'page'
-- The categorisation blacklist. Pages that match Lua patterns in this list will not be categorised.
-- (However, see the explanation of cfg.nocat, cfg.categories and cfg.category2 for some exceptions.)
-- If the namespace name has a space in, it must be written with an underscore, e.g. "Wikipedia_talk".
-- Other parts of the title can have either underscores or spaces.
cfg.blacklist = {
    '^メインページ$', -- don't categorise the main page.
    -- Don't categorise the following pages or their subpages.
    '^Wikipedia:Cascade%-protected items$',
    '^Wikipedia:Cascade%-protected items/.*$',
    '^User:UBX$', -- The userbox "template" space.
    '^User:UBX/.*$',
    '^User_talk:UBX$',
    '^User_talk:UBX/.*$',
    -- Don't categorise subpages of these pages, but allow
    -- categorisation of the base page.
    '^Wikipedia:Template メッセージの一覧/.+$',
    '/過去ログ' -- Don't categorise archives.
}
-- This is a table of namespaces to categorise by default. They should be in the format of parameter
-- names accepted by [[Module:Namespace detect]].
cfg.defaultNamespaces = {
    'main',
    'file',
    'help',
    'category'
}
----------------------------------------------------------------------------------------------------------
--                                         End configuration data                                      --
----------------------------------------------------------------------------------------------------------
-- Get dependent modules
local nsDetect = require('Module:Namespace detect')
local yesno = require('Module:Yesno')
local yesno = require('Module:Yesno')
 
----------------------------------------------------------------------------------------------------------
-- Lazily load things we don't always need
--                                         Local functions                                            --
local mShared, mappings
--     The following are internal functions, which we do not want to be accessible from other modules. --
 
----------------------------------------------------------------------------------------------------------
local p = {}
 
-- Find whether we need to return a category or not.
--------------------------------------------------------------------------------
local function needsCategory(pageObject, args)
-- Helper functions
    -- Don't categorise if the relevant options are set.
--------------------------------------------------------------------------------
    if yesno(args[cfg.nocat])
 
        or yesno(args[cfg.categories]) == false
local function trimWhitespace(s, removeBlanks)
        or (
if type(s) ~= 'string' then
            args[cfg.category2]
return s
            and args[cfg.category2] ~= cfg.category2Yes
end
            and args[cfg.category2] ~= cfg.category2Negative
s = s:match('^%s*(.-)%s*$')
        )
if removeBlanks then
    then
if s ~= '' then
        return false
return s
    end
else
    -- If there is no pageObject available, then that either means that we are over
return nil
    -- the expensive function limit or that the title specified was invalid. Invalid
end
    -- titles will probably only be a problem during testing, so we choose the best
else
    -- fallback for being over the expensive function limit. The fallback behaviour
return s
    -- of the old template was to assume the page was not a subpage, so we will do
end
    -- the same here.
end
    if args[cfg.subpage] == cfg.subpageNo and pageObject and pageObject.isSubpage then
 
        return false
--------------------------------------------------------------------------------
    end
-- CategoryHandler class
    if args[cfg.subpage] == cfg.subpageOnly
--------------------------------------------------------------------------------
        and (not pageObject or (pageObject and not pageObject.isSubpage))
 
    then
local CategoryHandler = {}
        return false
CategoryHandler.__index = CategoryHandler
    end
 
    return true
function CategoryHandler.new(data, args)
local obj = setmetatable({ _data = data, _args = args }, CategoryHandler)
-- Set the title object
do
local pagename = obj:parameter('demopage')
local success, titleObj
if pagename then
success, titleObj = pcall(mw.title.new, pagename)
end
if success and titleObj then
obj.title = titleObj
if titleObj == mw.title.getCurrentTitle() then
obj._usesCurrentTitle = true
end
else
obj.title = mw.title.getCurrentTitle()
obj._usesCurrentTitle = true
end
end
 
-- Set suppression parameter values
for _, key in ipairs{'nocat', 'categories'} do
local value = obj:parameter(key)
value = trimWhitespace(value, true)
obj['_' .. key] = yesno(value)
end
do
local subpage = obj:parameter('subpage')
local category2 = obj:parameter('category2')
if type(subpage) == 'string' then
subpage = mw.ustring.lower(subpage)
end
if type(category2) == 'string' then
subpage = mw.ustring.lower(category2)
end
obj._subpage = trimWhitespace(subpage, true)
obj._category2 = trimWhitespace(category2) -- don't remove blank values
end
return obj
end
 
function CategoryHandler:parameter(key)
local parameterNames = self._data.parameters[key]
local pntype = type(parameterNames)
if pntype == 'string' or pntype == 'number' then
return self._args[parameterNames]
elseif pntype == 'table' then
for _, name in ipairs(parameterNames) do
local value = self._args[name]
if value ~= nil then
return value
end
end
return nil
else
error(string.format(
'invalid config key "%s"',
tostring(key)
), 2)
end
end
 
function CategoryHandler:isSuppressedByArguments()
return
-- See if a category suppression argument has been set.
self._nocat == true
or self._categories == false
or (
self._category2
and self._category2 ~= self._data.category2Yes
and self._category2 ~= self._data.category2Negative
)
 
-- Check whether we are on a subpage, and see if categories are
-- suppressed based on our subpage status.
or self._subpage == self._data.subpageNo and self.title.isSubpage
or self._subpage == self._data.subpageOnly and not self.title.isSubpage
end
 
function CategoryHandler:shouldSkipBlacklistCheck()
-- Check whether the category suppression arguments indicate we
-- should skip the blacklist check.
return self._nocat == false
or self._categories == true
or self._category2 == self._data.category2Yes
end
 
function CategoryHandler:matchesBlacklist()
if self._usesCurrentTitle then
return self._data.currentTitleMatchesBlacklist
else
mShared = mShared or require('Module:Category handler/shared')
return mShared.matchesBlacklist(
self.title.prefixedText,
mw.loadData('Module:Category handler/blacklist')
)
end
end
 
function CategoryHandler:isSuppressed()
-- Find if categories are suppressed by either the arguments or by
-- matching the blacklist.
return self:isSuppressedByArguments()
or not self:shouldSkipBlacklistCheck() and self:matchesBlacklist()
end
 
function CategoryHandler:getNamespaceParameters()
if self._usesCurrentTitle then
return self._data.currentTitleNamespaceParameters
else
if not mappings then
mShared = mShared or require('Module:Category handler/shared')
mappings = mShared.getParamMappings(true) -- gets mappings with mw.loadData
end
return mShared.getNamespaceParameters(
self.title,
mappings
)
end
end
end
 
-- Find whether we need to check the blacklist or not.
function CategoryHandler:namespaceParametersExist()
local function needsBlacklistCheck(args)
-- Find whether any namespace parameters have been specified.
    if yesno(args[cfg.nocat]) == false
-- We use the order "all" --> namespace params --> "other" as this is what
        or yesno(args[cfg.categories]) == true
-- the old template did.
        or args[cfg.category2] == cfg.category2Yes
if self:parameter('all') then
    then
return true
        return false
end
    else
if not mappings then
        return true
mShared = mShared or require('Module:Category handler/shared')
    end
mappings = mShared.getParamMappings(true) -- gets mappings with mw.loadData
end
for ns, params in pairs(mappings) do
for i, param in ipairs(params) do
if self._args[param] then
return true
end
end
end
if self:parameter('other') then
return true
end
return false
end
end
 
-- Find whether any namespace parameters have been specified.
function CategoryHandler:getCategories()
-- Mappings is the table of parameter mappings taken from
local params = self:getNamespaceParameters()
-- [[Module:Namespace detect]].
local nsCategory
local function nsParamsExist(mappings, args)
for i, param in ipairs(params) do
    if args[cfg.all] or args[cfg.other] then
local value = self._args[param]
        return true
if value ~= nil then
    end
nsCategory = value
    for ns, params in pairs(mappings) do
break
        for i, param in ipairs(params) do
end
            if args[param] then
end
                return true
if nsCategory ~= nil or self:namespaceParametersExist() then
            end
-- Namespace parameters exist - advanced usage.
        end
if nsCategory == nil then
    end
nsCategory = self:parameter('other')
    return false
end
local ret = {self:parameter('all')}
local numParam = tonumber(nsCategory)
if numParam and numParam >= 1 and math.floor(numParam) == numParam then
-- nsCategory is an integer
ret[#ret + 1] = self._args[numParam]
else
ret[#ret + 1] = nsCategory
end
if #ret < 1 then
return nil
else
return table.concat(ret)
end
elseif self._data.defaultNamespaces[self.title.namespace] then
-- Namespace parameters don't exist, simple usage.
return self._args[1]
end
return nil
end
end
 
----------------------------------------------------------------------------------------------------------
--------------------------------------------------------------------------------
--                                          Global functions                                            --
-- Exports
--      The following functions are global, because we want them to be accessible from #invoke and      --
--------------------------------------------------------------------------------
--     from other Lua modules.                                                                        --
 
----------------------------------------------------------------------------------------------------------
local p = {}
local p = {}
 
-- Find if a string matches the blacklist. Returns the match if one is found, or nil otherwise.
function p._exportClasses()
-- Input should be a page title with a namespace prefix, e.g. "Wikipedia talk:Articles for deletion".
-- Used for testing purposes.
function p.matchesBlacklist(page)
return {
    if type(page) ~= 'string' then return end
CategoryHandler = CategoryHandler
    for i, pattern in ipairs(cfg.blacklist) do
}
        local match = mw.ustring.match(page, pattern)
        if match then
            return match
        end
    end
end
end
 
-- The main structure of the module. Checks whether we need to categorise,
function p._main(args, data)
-- and then passes the relevant arguments to [[Module:Namespace detect]].
data = data or mw.loadData('Module:Category handler/data')
function p._main(args)
local handler = CategoryHandler.new(data, args)
    -- Get the page object and argument mappings from
if handler:isSuppressed() then
    -- [[Module:Namespace detect]], to save us from having to rewrite the
return nil
    -- code.
end
    local pageObject = nsDetect.getPageObject(args[cfg.page])
return handler:getCategories()
    local mappings = nsDetect.getParamMappings()
    if not needsCategory(pageObject, args) then return end
    local ret = ''
    -- Check blacklist if necessary.
    if not needsBlacklistCheck(args) or not p.matchesBlacklist(pageObject.prefixedText) then
        if not nsParamsExist(mappings, args) then
            -- No namespace parameters exist; basic usage. Pass args[1] to
            -- [[Module:Namespace detect]] using the default namespace
            -- parameters, and return the result.
            local ndargs = {}
            for _, ndarg in ipairs(cfg.defaultNamespaces) do
                ndargs[ndarg] = args[1]
            end
            ndargs.page = args.page
            ndargs.demospace = args.demospace
            local ndresult = nsDetect._main(ndargs)
            if ndresult then
                ret = ret .. ndresult
            end
        else
            -- Namespace parameters exist; advanced usage.
            -- If the all parameter is specified, return it.
            local all = args.all
            if type(all) == 'string' then
                ret = ret .. all
            end
            -- Get the arguments to pass to [[Module:Namespace detect]].
            local ndargs = {}
            for ns, params in pairs(mappings) do
                for _, param in ipairs(params) do
                    ndargs[param] = args[param] or args[cfg.other] or nil
                end
            end
            ndargs.other = args.other
            ndargs.page = args.page
            ndargs.demospace = args.demospace
            local data = nsDetect._main(ndargs)
            -- Work out what to return based on the result of the namespace detect call.
            local datanum = tonumber(data)
            if type(datanum) == 'number' then
                -- "data" is a number, so return that positional parameter.
                -- Remove non-positive integer values, as only positive integers
                -- from 1-10 were used with the old template.
                if datanum > 0 and math.floor(datanum) == datanum then
                    local dataArg = args[datanum]
                    if type(dataArg) == 'string' then
                        ret = ret .. dataArg
                    end
                end
            else
                -- "data" is not a number, so return it as it is.
                if type(data) == 'string' then
                    ret = ret .. data
                end
            end
        end
    end
    return ret
end
end
 
function p.main(frame)
function p.main(frame, data)
    -- If called via #invoke, use the args passed into the invoking
data = data or mw.loadData('Module:Category handler/data')
    -- template, or the args passed to #invoke if any exist. Otherwise
local args = require('Module:Arguments').getArgs(frame, {
    -- assume args are being passed directly in.
wrappers = data.wrappers,
    local origArgs
valueFunc = function (k, v)
    if frame == mw.getCurrentFrame() then
v = trimWhitespace(v)
        origArgs = frame:getParent().args
if type(k) == 'number' then
        for k, v in pairs(frame.args) do
if v ~= '' then
            origArgs = frame.args
return v
            break
else
        end
return nil
    else
end
        origArgs = frame
else
    end
return v
end
    -- Trim whitespace and remove blank arguments for the following args:
end
    -- 1, 2, 3 etc., "nocat", "categories", "subpage", and "page".
})
    local args = {}
return p._main(args, data)
    for k, v in pairs(origArgs) do
        if type(v) == 'string' then
            v = mw.text.trim(v) -- Trim whitespace.
        end
        if type(k) == 'number'
            or k == cfg.nocat
            or k == cfg.categories
            or k == cfg.subpage
            or k == cfg.page
        then
            if v ~= '' then
                args[k] = v
            end
        else
            args[k] = v
        end
    end
    -- Lower-case "nocat", "categories", "category2", and "subpage". These
    -- parameters are put in lower case whenever they appear in the old
    -- template, so we can just do it once here and save ourselves some work.
    local lowercase = {cfg.nocat, cfg.categories, cfg.category2, cfg.subpage}
    for _, v in ipairs(lowercase) do
        local argVal = args[v]
        if type(argVal) == 'string' then
            args[v] = mw.ustring.lower(argVal)
        end
    end
    return p._main(args)
end
end
 
return p
return p
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