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Marshalling data between C and Lua functions is also done using the stack. To call a Lua function, arguments are pushed onto the stack, and then the lua_call is used to call the actual function. When writing a C function to be directly called from Lua, the arguments are read from the stack. Here is an example of calling a Lua function from C:
Aerospike Database uses Lua as its internal scripting language for its 'UDF' (User Defined Function) capabilities, similar to procedures; Apache HTTP Server can use Lua anywhere in the request process (since version 2.3, via the core mod_lua module).
Function names are often of the form p.myFunctionName, where p is the table from the return p at the bottom of your program. The reason for this is that you can only access functions that are entries in this table from the original #invoke statement. Functions for local use within the program can have any name.
This module is subject to page protection.It is a highly visible module in use by a very large number of pages, or is substituted very frequently. Because vandalism or mistakes would affect many pages, and even trivial editing might cause substantial load on the servers, it is protected from editing.
This module provides a number of basic mathematical operations.]] local yesno, getArgs-- lazily initialized local p = {}-- Holds functions to be returned from #invoke, and functions to make available to other Lua modules. local wrap = {}-- Holds wrapper functions that process arguments from #invoke. These act as intemediary between functions ...
The term closure is often used as a synonym for anonymous function, though strictly, an anonymous function is a function literal without a name, while a closure is an instance of a function, a value, whose non-local variables have been bound either to values or to storage locations (depending on the language; see the lexical environment section below).
A concatenative programming language is a point-free computer programming language in which all expressions denote functions, and the juxtaposition of expressions denotes function composition. [4] Concatenative programming replaces function application , which is common in other programming styles, with function composition as the default way ...
Wikipedia:Lua string functions – string performance considerations and limits; Wikipedia:Guide to Scribbling – how to write templates that use Scribunto/Lua; Wikipedia:Guide to Scribbling/Programmers' Quick start Guide to Lua – a list of essential points; Wikipedia:Comparable Lua functions to wikitext – how to convert wikitext to Lua