Formula: For example, return {84 = 132}, or return {'84' = 132}, or return {0 = 00}, give errors demanding a } near the =. John Victor - via Google, Very nice owner, extremely helpful and understanding lua.LVIsFalse(v LValue) - Returns true if nil or false. Throughout the post L will denote a pointer to lua.LState. Can Lua scripts access the username of the logged in user? The value of any of these keys will never be. Lua is written in ANSI C, so it can compile almost everywhere. extra parameters get nil. Similarly to the previous advice, when defining classes (e.g. Basically, you need to tell Lua explicitly that something youve created in the coroutine needs to outlive this coroutine (and this is done with lua_xmove). For example, Module:Navbar contains the code: In what case would frame not be equal to mw.getCurrentFrame()? In brief, the categories I set up were pre-alpha, alpha, beta, release, and protected. and expressions in Lua. lua.CanConvToString(v LValue) - True if LString or LNumber. How about expanding the template's function so that we can also put at the top of template /doc pages? n Exposing Go functions to Lua is essential to create custom a custom API. Best Mr. Stradivarius talk 10:42, 27 March 2013 (UTC), You've got it pretty much right. You can learn about how to use Lua C API here (or in the latest version of Programming in Lua) - the online version is written for Lua 5.1 and some things have changed since 5.1, but most concepts have stayed the same. --Rotpunkt (talk) 13:50, 9 January 2014 (UTC), mediawikiwiki:Extension talk:Scribunto/Lua reference manual #Example for string.format? -Wikid77 (talk) 19:29, 22 March 2013 (UTC), When moving a module there is no redirect left behind and existing invocations should be fixed. Calling Lua code is done through L.CallByParam, which takes a parameters object, P, and arguments as variadic parameters. If an argument to a function can be of more then one type the L.CheckTypes(n int, types LValueType) function can be used to check and yield an error to the user. If nothing happens, download GitHub Desktop and try again. We could also use the template to automatically add Category:Lua-based templates to keep track of converted templates more easily. They are iteration functions, so they add the overhead of a function call to each loop iteration. Local declaration of (built-in) Lua functions to reduce WebBut when you create thou sands of small tables, the combined overhead can be signic ant. -- Gets args.rowtype1, args.rowtype2, etc. Then, executing script.lua would resullt in an error: SomeClass is nil. For instance, all library functions are written in C; Have there been any major incidents yet? If you wish to retain the metadata for logging or other purposes, the entire metadata table is returned as the third return value from load(), containing the metadata for every key that was operated on (including those with no conflicts). ], So templates can call Lua modules, parser functions and pages in MediaWiki namespace. http://godoc.org/github.com/yuin/gopher-lua, http://github.com/otm/embedding-lua-in-go, http://godoc.org/github.com/yuin/gopher-lua#LTable. So its better to do it on Lua side, unless you make a C++ API which has to accept tables for ease-of-use - then you dont have much choice (but you can still wrap them into Lua functions and call C++ function internally). how can i do this (on which module, i find this Category for translation). Also, your feedback here about the best way to organize the data is also welcome. in Lua and functions defined in C. As we have seen in other examples, Can one call lua function that returns sevaral strings and pass them to a template? Iterative multi-file loader, used to load all Lua modules in a directory and return them as one table. How to implement action sequences and cutscenes in Lua, Making and storing references to game objects (entities) in C++ and Lua, https://www.lua.org/manual/5.4/manual.html#4. In this case we will embed Lua using gopher-lua. You can do procedural, functional, OO programming. Please let me know your thoughts over at Template talk:Pagetype#Module:Pagetype. The process was smooth and easy. Johnuniq (talk) 22:58, 10 January 2014 (UTC). The parser seems to reject any effort to initialize a table in the return statement if one of the indexes is, or could be, interpreted as a number. In the first case, we use a function call as a statement; The price they quote you is guaranteed and if your load comes in on the scales below the pounds they quote you they will refund you the difference you paid. I don't think it was really a active decision. Putting the following into the debug window gives the values shown: I don't need the functionI'm just asking if it has a bug. Comments appreciated. If youre writing a game and want to make it possible for people to create mods, many of your players are likely to know Lua thanks to such games as Minecraft, Factorio, Garrys Mod, World of Warcraft, Roblox and. With your own bindings, you can control what version you use and how the exposed API looks in Lua. There are some practical functions to convert and check lua.LValue objects. --Iantresman (talk) 13:14, 8 December 2013 (UTC). I did not see any mention of this in the tutorial.--greenrd (talk) 10:04, 19 October 2013 (UTC), I've started up a new discussion about this at Wikipedia talk:Lua style guide#CodeEditor switched to tabs. Given that each {{#ifexist:}} is an expensive parser function (EPF), these templates can consume an excessive number of EPFs. If you only want to call some C/C++ functions from Lua (or some small Lua functions from C/C++) - use Lua C API. At Module:DisplayLuaTableContents I see numerous loops as, , but I learned that strings are immutable and hence this assignment is rather costly. In short, if your coroutine gets GCed and you hold the reference to this local variable as a sol::object on the C++ side, it wont prevent the variable from getting GCed by Lua and your program crashing because of that. Prompt and friendly service as well! Can templates, MediaWiki pages or parser functions be called from Lua? Your opinions on the matter are welcome; please participate in the discussion by adding your comments at Wikipedia:Miscellany for deletion/Wikipedia:Lua/To do and please be sure to sign your comments with four tildes (~~~~).

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