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class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <h1 id="firstHeading" class="firstHeading mw-first-heading">Módulo:Arguments</h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang"> <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Ir a un artículo en otro idioma. Disponible en 4 idiomas"> <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-4" aria-hidden="true"> 4 idiomas </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-an mw-list-item"><a href="http://web.archive.org/web/20241118040052/https://an.wikipedia.org/wiki/M%C3%B3dulo:Arguments" title="Módulo:Arguments (aragonés)" lang="an" hreflang="an" data-title="Módulo:Arguments" data-language-autonym="Aragonés" data-language-local-name="aragonés" class="interlanguage-link-target">Aragonés</a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="http://web.archive.org/web/20241118040052/https://gl.wikipedia.org/wiki/M%C3%B3dulo:Arguments" title="Módulo:Arguments (gallego)" lang="gl" hreflang="gl" data-title="Módulo:Arguments" data-language-autonym="Galego" data-language-local-name="gallego" class="interlanguage-link-target">Galego</a></li><li class="interlanguage-link interwiki-ti mw-list-item"><a href="http://web.archive.org/web/20241118040052/https://ti.wikipedia.org/wiki/%E1%88%9E%E1%8B%B5%E1%8B%A9%E1%88%8D:Arguments" title="ሞድዩል:Arguments (tigriña)" lang="ti" hreflang="ti" data-title="ሞድዩል:Arguments" data-language-autonym="ትግርኛ" data-language-local-name="tigriña" class="interlanguage-link-target">ትግርኛ</a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="http://web.archive.org/web/20241118040052/https://tr.wikipedia.org/wiki/Mod%C3%BCl:Arguments" title="Modül:Arguments (turco)" lang="tr" hreflang="tr" data-title="Modül:Arguments" data-language-autonym="Türkçe" data-language-local-name="turco" class="interlanguage-link-target">Türkçe</a></li> </ul> <div class="after-portlet after-portlet-lang"><a 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dir="ltr"><pre><a href="#L-1"></a>-- This module provides easy processing of arguments passed to Scribunto from <a href="#L-2"></a>-- #invoke. It is intended for use by other Lua modules, and should not be <a href="#L-3"></a>-- called from #invoke directly. <a href="#L-4"></a> <a href="#L-5"></a>local libraryUtil = require('libraryUtil') <a href="#L-6"></a>local checkType = libraryUtil.checkType <a href="#L-7"></a> <a href="#L-8"></a>local arguments = {} <a href="#L-9"></a> <a href="#L-10"></a>-- Generate four different tidyVal functions, so that we don't have to check the <a href="#L-11"></a>-- options every time we call it. <a href="#L-12"></a> <a href="#L-13"></a>local function tidyValDefault(key, val) <a href="#L-14"></a> if type(val) == 'string' then <a href="#L-15"></a> val = val:match('^%s*(.-)%s*$') <a href="#L-16"></a> if val == '' then <a href="#L-17"></a> return nil <a href="#L-18"></a> else <a href="#L-19"></a> return val <a href="#L-20"></a> end <a href="#L-21"></a> else <a href="#L-22"></a> return val <a href="#L-23"></a> end <a href="#L-24"></a>end <a href="#L-25"></a> <a href="#L-26"></a>local function tidyValTrimOnly(key, val) <a href="#L-27"></a> if type(val) == 'string' then <a href="#L-28"></a> return val:match('^%s*(.-)%s*$') <a href="#L-29"></a> else <a href="#L-30"></a> return val <a href="#L-31"></a> end <a href="#L-32"></a>end <a href="#L-33"></a> <a href="#L-34"></a>local function tidyValRemoveBlanksOnly(key, val) <a href="#L-35"></a> if type(val) == 'string' then <a href="#L-36"></a> if val:find('%S') then <a href="#L-37"></a> return val <a href="#L-38"></a> else <a href="#L-39"></a> return nil <a href="#L-40"></a> end <a href="#L-41"></a> else <a href="#L-42"></a> return val <a href="#L-43"></a> end <a href="#L-44"></a>end <a href="#L-45"></a> <a href="#L-46"></a>local function tidyValNoChange(key, val) <a href="#L-47"></a> return val <a href="#L-48"></a>end <a href="#L-49"></a> <a href="#L-50"></a>local function matchesTitle(given, title) <a href="#L-51"></a> local tp = type( given ) <a href="#L-52"></a> return (tp == 'string' or tp == 'number') and mw.title.new( given ).prefixedText == title <a href="#L-53"></a>end <a href="#L-54"></a> <a href="#L-55"></a>local translate_mt = { __index = function(t, k) return k end } <a href="#L-56"></a> <a href="#L-57"></a>function arguments.getArgs(frame, options) <a href="#L-58"></a> checkType('getArgs', 1, frame, 'table', true) <a href="#L-59"></a> checkType('getArgs', 2, options, 'table', true) <a href="#L-60"></a> frame = frame or {} <a href="#L-61"></a> options = options or {} <a href="#L-62"></a> <a href="#L-63"></a> --[[ <a href="#L-64"></a> -- Set up argument translation. <a href="#L-65"></a> --]] <a href="#L-66"></a> options.translate = options.translate or {} <a href="#L-67"></a> if getmetatable(options.translate) == nil then <a href="#L-68"></a> setmetatable(options.translate, translate_mt) <a href="#L-69"></a> end <a href="#L-70"></a> if options.backtranslate == nil then <a href="#L-71"></a> options.backtranslate = {} <a href="#L-72"></a> for k,v in pairs(options.translate) do <a href="#L-73"></a> options.backtranslate[v] = k <a href="#L-74"></a> end <a href="#L-75"></a> end <a href="#L-76"></a> if options.backtranslate and getmetatable(options.backtranslate) == nil then <a href="#L-77"></a> setmetatable(options.backtranslate, { <a href="#L-78"></a> __index = function(t, k) <a href="#L-79"></a> if options.translate[k] ~= k then <a href="#L-80"></a> return nil <a href="#L-81"></a> else <a href="#L-82"></a> return k <a href="#L-83"></a> end <a href="#L-84"></a> end <a href="#L-85"></a> }) <a href="#L-86"></a> end <a href="#L-87"></a> <a href="#L-88"></a> --[[ <a href="#L-89"></a> -- Get the argument tables. If we were passed a valid frame object, get the <a href="#L-90"></a> -- frame arguments (fargs) and the parent frame arguments (pargs), depending <a href="#L-91"></a> -- on the options set and on the parent frame's availability. If we weren't <a href="#L-92"></a> -- passed a valid frame object, we are being called from another Lua module <a href="#L-93"></a> -- or from the debug console, so assume that we were passed a table of args <a href="#L-94"></a> -- directly, and assign it to a new variable (luaArgs). <a href="#L-95"></a> --]] <a href="#L-96"></a> local fargs, pargs, luaArgs <a href="#L-97"></a> if type(frame.args) == 'table' and type(frame.getParent) == 'function' then <a href="#L-98"></a> if options.wrappers then <a href="#L-99"></a> --[[ <a href="#L-100"></a> -- The wrappers option makes Module:Arguments look up arguments in <a href="#L-101"></a> -- either the frame argument table or the parent argument table, but <a href="#L-102"></a> -- not both. This means that users can use either the #invoke syntax <a href="#L-103"></a> -- or a wrapper template without the loss of performance associated <a href="#L-104"></a> -- with looking arguments up in both the frame and the parent frame. <a href="#L-105"></a> -- Module:Arguments will look up arguments in the parent frame <a href="#L-106"></a> -- if it finds the parent frame's title in options.wrapper; <a href="#L-107"></a> -- otherwise it will look up arguments in the frame object passed <a href="#L-108"></a> -- to getArgs. <a href="#L-109"></a> --]] <a href="#L-110"></a> local parent = frame:getParent() <a href="#L-111"></a> if not parent then <a href="#L-112"></a> fargs = frame.args <a href="#L-113"></a> else <a href="#L-114"></a> local title = parent:getTitle():gsub('/sandbox$', '') <a href="#L-115"></a> local found = false <a href="#L-116"></a> if matchesTitle(options.wrappers, title) then <a href="#L-117"></a> found = true <a href="#L-118"></a> elseif type(options.wrappers) == 'table' then <a href="#L-119"></a> for _,v in pairs(options.wrappers) do <a href="#L-120"></a> if matchesTitle(v, title) then <a href="#L-121"></a> found = true <a href="#L-122"></a> break <a href="#L-123"></a> end <a href="#L-124"></a> end <a href="#L-125"></a> end <a href="#L-126"></a> <a href="#L-127"></a> -- We test for false specifically here so that nil (the default) acts like true. <a href="#L-128"></a> if found or options.frameOnly == false then <a href="#L-129"></a> pargs = parent.args <a href="#L-130"></a> end <a href="#L-131"></a> if not found or options.parentOnly == false then <a href="#L-132"></a> fargs = frame.args <a href="#L-133"></a> end <a href="#L-134"></a> end <a href="#L-135"></a> else <a href="#L-136"></a> -- options.wrapper isn't set, so check the other options. <a href="#L-137"></a> if not options.parentOnly then <a href="#L-138"></a> fargs = frame.args <a href="#L-139"></a> end <a href="#L-140"></a> if not options.frameOnly then <a href="#L-141"></a> local parent = frame:getParent() <a href="#L-142"></a> pargs = parent and parent.args or nil <a href="#L-143"></a> end <a href="#L-144"></a> end <a href="#L-145"></a> if options.parentFirst then <a href="#L-146"></a> fargs, pargs = pargs, fargs <a href="#L-147"></a> end <a href="#L-148"></a> else <a href="#L-149"></a> luaArgs = frame <a href="#L-150"></a> end <a href="#L-151"></a> <a href="#L-152"></a> -- Set the order of precedence of the argument tables. If the variables are <a href="#L-153"></a> -- nil, nothing will be added to the table, which is how we avoid clashes <a href="#L-154"></a> -- between the frame/parent args and the Lua args. <a href="#L-155"></a> local argTables = {fargs} <a href="#L-156"></a> argTables[#argTables + 1] = pargs <a href="#L-157"></a> argTables[#argTables + 1] = luaArgs <a href="#L-158"></a> <a href="#L-159"></a> --[[ <a href="#L-160"></a> -- Generate the tidyVal function. If it has been specified by the user, we <a href="#L-161"></a> -- use that; if not, we choose one of four functions depending on the <a href="#L-162"></a> -- options chosen. This is so that we don't have to call the options table <a href="#L-163"></a> -- every time the function is called. <a href="#L-164"></a> --]] <a href="#L-165"></a> local tidyVal = options.valueFunc <a href="#L-166"></a> if tidyVal then <a href="#L-167"></a> if type(tidyVal) ~= 'function' then <a href="#L-168"></a> error( <a href="#L-169"></a> "bad value assigned to option 'valueFunc'" <a href="#L-170"></a> .. '(function expected, got ' <a href="#L-171"></a> .. type(tidyVal) <a href="#L-172"></a> .. ')', <a href="#L-173"></a> 2 <a href="#L-174"></a> ) <a href="#L-175"></a> end <a href="#L-176"></a> elseif options.trim ~= false then <a href="#L-177"></a> if options.removeBlanks ~= false then <a href="#L-178"></a> tidyVal = tidyValDefault <a href="#L-179"></a> else <a href="#L-180"></a> tidyVal = tidyValTrimOnly <a href="#L-181"></a> end <a href="#L-182"></a> else <a href="#L-183"></a> if options.removeBlanks ~= false then <a href="#L-184"></a> tidyVal = tidyValRemoveBlanksOnly <a href="#L-185"></a> else <a href="#L-186"></a> tidyVal = tidyValNoChange <a href="#L-187"></a> end <a href="#L-188"></a> end <a href="#L-189"></a> <a href="#L-190"></a> --[[ <a href="#L-191"></a> -- Set up the args, metaArgs and nilArgs tables. args will be the one <a href="#L-192"></a> -- accessed from functions, and metaArgs will hold the actual arguments. Nil <a href="#L-193"></a> -- arguments are memoized in nilArgs, and the metatable connects all of them <a href="#L-194"></a> -- together. <a href="#L-195"></a> --]] <a href="#L-196"></a> local args, metaArgs, nilArgs, metatable = {}, {}, {}, {} <a href="#L-197"></a> setmetatable(args, metatable) <a href="#L-198"></a> <a href="#L-199"></a> local function mergeArgs(tables) <a href="#L-200"></a> --[[ <a href="#L-201"></a> -- Accepts multiple tables as input and merges their keys and values <a href="#L-202"></a> -- into one table. If a value is already present it is not overwritten; <a href="#L-203"></a> -- tables listed earlier have precedence. We are also memoizing nil <a href="#L-204"></a> -- values, which can be overwritten if they are 's' (soft). <a href="#L-205"></a> --]] <a href="#L-206"></a> for _, t in ipairs(tables) do <a href="#L-207"></a> for key, val in pairs(t) do <a href="#L-208"></a> if metaArgs[key] == nil and nilArgs[key] ~= 'h' then <a href="#L-209"></a> local tidiedVal = tidyVal(key, val) <a href="#L-210"></a> if tidiedVal == nil then <a href="#L-211"></a> nilArgs[key] = 's' <a href="#L-212"></a> else <a href="#L-213"></a> metaArgs[key] = tidiedVal <a href="#L-214"></a> end <a href="#L-215"></a> end <a href="#L-216"></a> end <a href="#L-217"></a> end <a href="#L-218"></a> end <a href="#L-219"></a> <a href="#L-220"></a> --[[ <a href="#L-221"></a> -- Define metatable behaviour. Arguments are memoized in the metaArgs table, <a href="#L-222"></a> -- and are only fetched from the argument tables once. Fetching arguments <a href="#L-223"></a> -- from the argument tables is the most resource-intensive step in this <a href="#L-224"></a> -- module, so we try and avoid it where possible. For this reason, nil <a href="#L-225"></a> -- arguments are also memoized, in the nilArgs table. Also, we keep a record <a href="#L-226"></a> -- in the metatable of when pairs and ipairs have been called, so we do not <a href="#L-227"></a> -- run pairs and ipairs on the argument tables more than once. We also do <a href="#L-228"></a> -- not run ipairs on fargs and pargs if pairs has already been run, as all <a href="#L-229"></a> -- the arguments will already have been copied over. <a href="#L-230"></a> --]] <a href="#L-231"></a> <a href="#L-232"></a> metatable.__index = function (t, key) <a href="#L-233"></a> --[[ <a href="#L-234"></a> -- Fetches an argument when the args table is indexed. First we check <a href="#L-235"></a> -- to see if the value is memoized, and if not we try and fetch it from <a href="#L-236"></a> -- the argument tables. When we check memoization, we need to check <a href="#L-237"></a> -- metaArgs before nilArgs, as both can be non-nil at the same time. <a href="#L-238"></a> -- If the argument is not present in metaArgs, we also check whether <a href="#L-239"></a> -- pairs has been run yet. If pairs has already been run, we return nil. <a href="#L-240"></a> -- This is because all the arguments will have already been copied into <a href="#L-241"></a> -- metaArgs by the mergeArgs function, meaning that any other arguments <a href="#L-242"></a> -- must be nil. <a href="#L-243"></a> --]] <a href="#L-244"></a> if type(key) == 'string' then <a href="#L-245"></a> key = options.translate[key] <a href="#L-246"></a> end <a href="#L-247"></a> local val = metaArgs[key] <a href="#L-248"></a> if val ~= nil then <a href="#L-249"></a> return val <a href="#L-250"></a> elseif metatable.donePairs or nilArgs[key] then <a href="#L-251"></a> return nil <a href="#L-252"></a> end <a href="#L-253"></a> for _, argTable in ipairs(argTables) do <a href="#L-254"></a> local argTableVal = tidyVal(key, argTable[key]) <a href="#L-255"></a> if argTableVal ~= nil then <a href="#L-256"></a> metaArgs[key] = argTableVal <a href="#L-257"></a> return argTableVal <a href="#L-258"></a> end <a href="#L-259"></a> end <a href="#L-260"></a> nilArgs[key] = 'h' <a href="#L-261"></a> return nil <a href="#L-262"></a> end <a href="#L-263"></a> <a href="#L-264"></a> metatable.__newindex = function (t, key, val) <a href="#L-265"></a> -- This function is called when a module tries to add a new value to the <a href="#L-266"></a> -- args table, or tries to change an existing value. <a href="#L-267"></a> if type(key) == 'string' then <a href="#L-268"></a> key = options.translate[key] <a href="#L-269"></a> end <a href="#L-270"></a> if options.readOnly then <a href="#L-271"></a> error( <a href="#L-272"></a> 'could not write to argument table key "' <a href="#L-273"></a> .. tostring(key) <a href="#L-274"></a> .. '"; the table is read-only', <a href="#L-275"></a> 2 <a href="#L-276"></a> ) <a href="#L-277"></a> elseif options.noOverwrite and args[key] ~= nil then <a href="#L-278"></a> error( <a href="#L-279"></a> 'could not write to argument table key "' <a href="#L-280"></a> .. tostring(key) <a href="#L-281"></a> .. '"; overwriting existing arguments is not permitted', <a href="#L-282"></a> 2 <a href="#L-283"></a> ) <a href="#L-284"></a> elseif val == nil then <a href="#L-285"></a> --[[ <a href="#L-286"></a> -- If the argument is to be overwritten with nil, we need to erase <a href="#L-287"></a> -- the value in metaArgs, so that __index, __pairs and __ipairs do <a href="#L-288"></a> -- not use a previous existing value, if present; and we also need <a href="#L-289"></a> -- to memoize the nil in nilArgs, so that the value isn't looked <a href="#L-290"></a> -- up in the argument tables if it is accessed again. <a href="#L-291"></a> --]] <a href="#L-292"></a> metaArgs[key] = nil <a href="#L-293"></a> nilArgs[key] = 'h' <a href="#L-294"></a> else <a href="#L-295"></a> metaArgs[key] = val <a href="#L-296"></a> end <a href="#L-297"></a> end <a href="#L-298"></a> <a href="#L-299"></a> local function translatenext(invariant) <a href="#L-300"></a> local k, v = next(invariant.t, invariant.k) <a href="#L-301"></a> invariant.k = k <a href="#L-302"></a> if k == nil then <a href="#L-303"></a> return nil <a href="#L-304"></a> elseif type(k) ~= 'string' or not options.backtranslate then <a href="#L-305"></a> return k, v <a href="#L-306"></a> else <a href="#L-307"></a> local backtranslate = options.backtranslate[k] <a href="#L-308"></a> if backtranslate == nil then <a href="#L-309"></a> -- Skip this one. This is a tail call, so this won't cause stack overflow <a href="#L-310"></a> return translatenext(invariant) <a href="#L-311"></a> else <a href="#L-312"></a> return backtranslate, v <a href="#L-313"></a> end <a href="#L-314"></a> end <a href="#L-315"></a> end <a href="#L-316"></a> <a href="#L-317"></a> metatable.__pairs = function () <a href="#L-318"></a> -- Called when pairs is run on the args table. <a href="#L-319"></a> if not metatable.donePairs then <a href="#L-320"></a> mergeArgs(argTables) <a href="#L-321"></a> metatable.donePairs = true <a href="#L-322"></a> end <a href="#L-323"></a> return translatenext, { t = metaArgs } <a href="#L-324"></a> end <a href="#L-325"></a> <a href="#L-326"></a> local function inext(t, i) <a href="#L-327"></a> -- This uses our __index metamethod <a href="#L-328"></a> local v = t[i + 1] <a href="#L-329"></a> if v ~= nil then <a href="#L-330"></a> return i + 1, v <a href="#L-331"></a> end <a href="#L-332"></a> end <a href="#L-333"></a> <a href="#L-334"></a> metatable.__ipairs = function (t) <a href="#L-335"></a> -- Called when ipairs is run on the args table. <a href="#L-336"></a> return inext, t, 0 <a href="#L-337"></a> end <a href="#L-338"></a> <a href="#L-339"></a> return args <a href="#L-340"></a>end <a href="#L-341"></a> <a href="#L-342"></a>return arguments </pre></div>   </div><noscript><img src="http://web.archive.org/web/20241118040052im_/https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Obtenido de «<a dir="ltr" href="http://web.archive.org/web/20241118040052/https://es.wikipedia.org/w/index.php?title=Módulo:Arguments&oldid=149589594">https://es.wikipedia.org/w/index.php?title=Módulo:Arguments&oldid=149589594</a>»</div></div> <div id="catlinks" class="catlinks catlinks-allhidden" data-mw="interface"></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer"> <ul id="footer-info"> <li id="footer-info-lastmod"> Esta página se editó por última vez el 28 feb 2023 a las 18:54.</li> <li id="footer-info-copyright">El texto está disponible bajo la <a href="/web/20241118040052/https://es.wikipedia.org/wiki/Wikipedia:Texto_de_la_Licencia_Creative_Commons_Atribuci%C3%B3n-CompartirIgual_4.0_Internacional" title="Wikipedia:Texto de la Licencia Creative Commons Atribución-CompartirIgual 4.0 Internacional">Licencia Creative Commons Atribución-CompartirIgual 4.0</a>; pueden aplicarse cláusulas adicionales. 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