I think it's worth checking back about how far we can go toward an ideal bare {{#invoke:SomeName}} format, since the extra parameter is only a nuisance/confusion to many non-Lua users. If you need a debugger, I recommend checking out. The system compares actual template output with fixed text, and is only suitable for templates and results that are reasonably short because each template and its expected result have to be in one line. It has a GNU Make build, so building it is easy. WebLua scripts have the same capability with calling MMF events. We now have the /doc system somewhat integrated/forced trough the Scribunto extension. Please take a look, critique it, test it, and let me know if there is anything that should change before I look at deploying it to some of the maintenance templates. In brief, the categories I set up were pre-alpha, alpha, beta, release, and protected. The #invoke speed in March 2013 has been about 180/second, compared to short templates running 350-600 per second, or parser functions >750/second, or character-insertion templates running 2,400/second. The sandbox Wiki code {{Special:AllPages|namespace=666}} {{CURRENTTIMESTAMP}} returns a timestamp that changes each time the page is reloaded, because caching is disabled. To get the perf bit out of the way: the bridging code between C++/Lua has overhead compared to just calling Lua from Lua or calling C++ from C++. My initial thought is that having a module named after a single string function may be a bit extravagant, so perhaps it would be better grouped with other similar functions, if those exist somewhere. The first question, of course, is whether we should require() at all. lua.CanConvToString(v LValue) - True if LString or LNumber. The fact that even an IP user may edit the module namespace suggests that it must be really stable and secure. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. To iterate a table, instead use for k=1, #tbl do local v = tbl [k]; It does exactly the same without the function call overhead (pairs actually returns another function which is then called for Frietjes (talk) 16:17, 30 October 2013 (UTC). You can call a function with a number of arguments different from a find-and-replace Macro that lets you write code that acts like a function, without the function overhead running an external image to lua tool, so you can just stick the images in your Project folder, and automatically include them into your lua script every time you hit F7 ! Can Lua scripts access the username of the logged in user? Does someone have an idea how to code this feature? This is a matter of implementation of the compiler or runtime (and its options) and cannot be said with any certainty. Many 3rd party Lua libraries usually work with Lua 5.2/5.3/5.4. It Is Me Here t / c 15:08, 3 September 2013 (UTC). I wonder if there's any actually helpful tutorial for those already familiar with Wikisyntax but without other computer language experience like Lua or C. The tutorials I found usually begin with a simple code to tell you to copy-and-paste (hello, world) then look at the outcome. :P Anyway, I have taken that idea and added some parameter checking and some documentation, and called it Module:User:Mr. Stradivarius/PrefixIndex. If needed, custom metadata can safely be written to the metadata table; it is unique for each key and will persist for the duration of the load() call. These timings are likely different on different processor Page content can be retrieved with the getContent () method of the title object. ], So templates can call Lua modules, parser functions and pages in MediaWiki namespace. --Aftab1995 (talk) 15:50, 23 May 2013 (UTC), I'm very happy to announce that Template:FlagiconLua has reached feature parity with Template:Flagicon! I would welcome comments, and if people think the scheme is OK, please consider rating your modules Wnt (talk) 23:31, 16 April 2013 (UTC), I have opened a discussion here: en:Module_talk:String#Replication on other wikis. You can even create small domain specific languages thanks to Luas syntax sugar. Now you dont need to ship this init.lua with your binary and life becomes easier. Mr. Stradivarius talk 12:54, 10 July 2013 (UTC), We have {{WikiProject Lua/header}} that does the header tabs (I started). I have used the mw.title library with a call like mw.title.new(page_name):fullUrl({uselang=lang}), but mw.title.new() is marked as an expensive function so I would like to known if there are alternative.--Moroboshi (talk) 07:06, 18 May 2013 (UTC), Is there a way to use the Mediawiki API inside Lua? The XLua object also has a substantial MMF Interface for directly querying and modifying game objects and state Greetings Stephan Kulla (talk) 15:54, 19 May 2013 (UTC), (Sorry for writing here. I'd rather see useful LUA links. In Module:Sidebar, I extended the boilerplate further to allow a third way, invoking the module from a template and passing args in explicitly (instead of using whatever args were passed to the template), like {{#invoke: Navbar | arg1 = foo | arg2 = bar}}. With those it's not entirely clear if they are meant to go together or not. Otherwise false. Sandboxing is easy. Use Git or checkout with SVN using the web URL. WebThe Redis Lua execution context always provides a singleton instance of an object named redis . The LState is needed for interacting with the Lua VM, most commonly for retrieving function arguments. We have a lot of cases where related modules have the same name with "/" to indicate subpages, and some others where apparently related modules simply extend a name. You're looking for performance in the wrong place. The problem with function calls is not that they cost much. There is another problem. Function c Theyre mostly written in C/C++ and only expose a bunch of Lua functions/tables to the user. !) 16:39, 24 February 2013 (UTC), the following code is arguably better than the current one;-) [Note: It also highlights more Lua features - assertion, type checking, local scoping, tail call recursion etc. The easy part is 'getting rid of the function name': assuming p is the variable in the last line of the program, just say, However, I see no way to get rid of the pipe - it. Snipre (talk) 07:52, 31 October 2013 (UTC), Is there a LUA method for '#ifexist' that doesn't generate false incoming links? Check out this engine for making Zelda-likes for inspiration of how to write game code in Lua. to use Codespaces. {{. P:S Creating separate module for template2 in above example is not feasible because I am trying to reduce the number of template substitution and writing separate modules would defeat the purpose.--Jayarathina (talk) 05:20, 24 December 2013 (UTC). On each conflict, this function will be passed the conflicted key, the current value that load() is attempting to save, the value that is currently stored in the conflicted key, and a table of metadata consisting of the following: Please note that these keys are created and updated automatically by load() and should not be altered manually. If nothing happens, download Xcode and try again. And you can do even better, you can hide library details and not expose them to Lua at all which will make switching between lower-level frameworks much easier, for example: If you want to use a C library and youre using LuaJIT, you dont even need to create a binding for it at all. Hard working, fast, and worth every penny! For example, I might want to process the posts on a talk page, and add some extra formatting. But what I'd like to ask now is: as a matter of general policy, does it ever make sense to link from a module that is in such widespread use that it needs to be protected to the current copy of another module? [feature X] (images/feature-x.png) Multi-MC Simulation Wnt (talk) 15:56, 6 January 2014 (UTC). The documentation toolbox does not yet know about Module testcases (though the editnotice 'sort of' does). {\displaystyle d=3^{(n/2000)}.} If you notice that your C++ function has a huge overhead because of Lua calls, consider using this pattern: If you dont use local to define/init a variable, it becomes a global by default. If you create a local object inside the coroutine and store the reference to it in C++. OUR MISSION. --Iantresman (talk) 14:56, 12 December 2013 (UTC), --Iantresman (talk) 09:36, 13 December 2013 (UTC), Does our implementation allow Lua scripts access to whether the user is logged in or not? To learn Lua, read Programming in Lua by Roberto Ierusalimschy. Ive written many articles about using Lua with C++ on my old blog many years ago. E.g. It doesnt have many gotchas. To be sure, this is the strip marker for a current time function, but I'm thinking this is either a bug or a feature, and we should figure out which! The function is followed by the arguments, in order. Clearly it's worth thinking about ways to reduce this impact as much as possible. This concept might be extended to support more than one memory location: WebBut when you create thou sands of small tables, the combined overhead can be signic ant. Incnis Mrsi (talk) 22:46, 9 January 2014 (UTC). A fixed size callstack has the highest performance and has a fixed memory overhead. A Go function should implement the LGFunction type to be callable from Lua. For example (C++ functions have cpp postfix): Ask yourself: do all these functions need to be in C++? Johnuniq (talk) 22:58, 10 January 2014 (UTC). Long story short, the overhead of a direct (non-virtual) function call was approximately 5.5 nanoseconds, or 18 clock cycles, compared to an inline function call. The overhead of a virtual function call was 13.2 nanoseconds, or 42 clock cycles, compared to inline. These timings are likely different on different processor families. You just compile a bunch of C files, link with the library and youre ready to go - you dont need to rewrite half of your program/game or make your build script 10 times more difficult. All values in Lua can be stored in variables, used as arguments when calling functions, and returned as the result of their execution. It's just that a central repository would be so beneficial for everybody (en.wiki devs/editors included) and en.wiki can't really be (in my honest and personal opinion) that place. n WebTo call a Lua funcion, we first push the function onto the stack. after imported i find error in article with this Category:Pages with script errors. Have there been any major incidents yet? I'm currently using the following function to get template arguments. Similarly to the previous advice, when defining classes (e.g. Is it a good idea to deviate from the template standard of calling pages with testcases, tests for the module namespace? I very much regret that. I don't know, but with some of these things being transcluded on every page in the wiki, and having elaborate powers to write anything they can slip by the interface, we should be wary of security holes, and the first step is to know quickly and certainly which are a unit, I think.