lua

The Lua language -- like its community -- is robust, inventive, and ready to help.

In operating systems where static loading is a necessity, extending the Lua engine to call a C function requires you to rebuild Lua.

The function is called with a Lua state argument; once again, all interaction between C and Lua occurs through the stack of the Lua state.

At the heart of the symbiotic relationship between Lua and its host language is a virtual stack.

Before you create yet another configuration file or resource format (and yet another parser to accompany it), try Lua.

Actually, Lua goes to great lengths to make sure that implementation details do not surface to the user.

As the Thai-Dai people settled in the rich river valley, they took over the control upon the Lua indigenous people.

Codify is built upon the Lua scripting language, a widely used scripting mechanism used in games.

Implementing the core logic of a program in Lua, rather than in C, might well dramatically reduce development time.

Virtually all the C application program interface (API) for Lua operations operate through the stack.

When Lua needs to insert a new key into a table and the hash array is full, Lua does a rehash.

But the reciprocal is true as well: The host language can simultaneously extend Lua.

Note that every C language call to or about Lua takes a Lua state as an argument; there is no default state.

Indeed, tables are the only data structure in Lua.

Vale da Lua (Moon Valley) is a water eroded rock formation with natural swimming pools, placed on a river in the brazilian cerrado forest.

A metatable is a (normal) Lua table that maps standard operations to custom functions that you provide.

It's quite possible to bounce back and forth between Lua and C, as the Lua interpreter is reentrant.

Lua is probably the fastest of the three languages and usually uses the least amount of runtime memory.

It is easier to create objects and write code while logged on as a system administrator or database owner than it is using a LUA account.

Moreover, any Lua value -- including a function or another table -- can serve as a dictionary element key.

If your C program invokes the Lua interpreter on a script, which calls a C function, which then uses the Lua interpreter again, that's okay.

All Lua applications must be embedded in a host application.

Usually, you do not need to know anything about how Lua implement tables to use them.

Beware, however, that Lua can only shrink a table when rehashing it.

To explore tables, start the Lua interpreter and type the lines shown in bold in Listing 1.

Lua would be Wicca - A pantheistic language that can easily be adapted for different cultures and locations.

The error handler, if one is provided, is the index on the stack of the Lua code to handle any errors that occur.

After you've installed Lua on your system, give the stand-alone Lua interpreter a try.

If a Lua function returns n values, the first value is at location -n in the stack, and the last value is at position -1.

Lua is distributed under the MIT license, and is completely free for any use, including commercial use.

A thread is a co-routine created by calling the built-in function coroutine. create(f), where f is a Lua function.

In the Thai-Dai chronicle, it is believed that the Lua people are the indigenous people in the Kingdom of Thailand in Southeast Asia.

A chunk can be stored in a file or in a string in a Lua program.

If you want to start writing some top-level logic in Lua, though, it's very easy and efficient to do so.

Balancing the need for high-performance code and high-level programming is the purview of Lua, an embeddable scripting language.

If your operating system supports dynamic loading, Lua can load and call functions on demand.

The third, and most flexible, is to mix and match these approaches, using Lua to script some actions, and code in C to manage others.

The implementation of tables in Lua involves some clever algorithms.

The second is to write a program primarily in C, then use embedded Lua as a way to store and report data and configuration.

The Lua interpreter uses a stack interface to communicate with calling code.

So, if your initial sizes are larger than needed, Lua may never correct your waste of space.

All numbers in Lua are doubles (but you can easily build code to realize other numeric types).

The lightweight Lua language (developed at the Pontifical Catholic University of Rio de Janeiro in Brazil) includes a register-based VM.

There are eight fundamental types (of values) in Lua: nil, boolean, number, string, function, thread, table, and userdata.

I am looking for an experienced LUA (which I believe is the current platform used) programmer to design a WOW ADD ON.

At the Lua-users wiki, browse a variety of pre-built, installable Lua binaries.

Tables are the catch-all data structure in Lua.

If an error occurs during execution, a Lua string is pushed on the stack.

When a Lua program is executed, it is translated into bytecodes, and then executed in the VM.

Addons are made up of LUA files, and XML files, both of which are also run by blizzard's interpreter.

And because the Lua scripts are separate from the compiled code, you readily and separately revise the scripts.

Lua has a mark-and-sweep garbage collector.

A chunk is any sequence of Lua statements.

In Lua, only values have a type, but variables are dynamically typed.

With Lua, the development cycle is more akin to "Code, Build, Run, Script, Script, Script. . . " .

The entire Lua 5. 0. 2 core, including the standard libraries and the Lua compiler, is less than 200KB in size.

Put the code into the Lua interpreter, and then type print(color[1], color[2], color[1]).

And in development, there are projects to support Perl and Lua.

That is why currently Lua creates empty tables with no pre-allocated slots.

This is the same as Lua's behavior on multiple assignment operations.

As of Lua 5. 1, the garbage collector works incrementally.

It wouldn't matter; Lua is very flexible about how code gets called.

Lua is a scripting language popular among games such as World of Warcraft, Dawn of War, and Far Cry.

Of course, because the userdata originates in C, there are no pre-defined operations for userdata in Lua.

Building Lua is easy; you just run make ; you can fall back on posix or even ansi if you don't want to rely on platform-specific features.

LUA VANG RUBBER PLASTIC COMPANY

If you use Debian Linux, you can install Lua 5. 0 quickly and easily by running this command

Lua allows multiple assignments, and expressions are evaluated first and are then assigned. For example, the statements

Table 1 Eva lua tion indexes and weight