Wiley-World.of.Warcraft.Programming.A.Guide.and.Reference.for.Creating.WoW.Addons

16 Part I ■ Learning to ProgramDownloading and Installing a Lua InterpreterIf you prefer to download an interpreter so you can work offline, packages areavailable for both Microsoft Windows and Mac OS X.Microsoft WindowsYou can download the interpreter for Microsoft Windows at http://wowprogramming.com/utils/lua/windows. The package doesn’t require anyinstallation; you can simply place it anywhere that is convenient for you.Extract the ZIP file to a new folder and place it where you can easily findit again.To launch the Lua interpreter, go to the files you’ve extracted anddouble-click the icon for the interpreter. This opens a window that lookssomething like that shown in Figure 2-3. You can also create a shortcut to thisfile from which you can launch the interpreter.Figure 2-3: Lua running on Microsoft WindowsMac OS XYou can find a package that can be used to install a Lua interpreter for MacOS X at http://wowprogramming.com/utils/lua/macosx. The download isa standard disk image that can be mounted on your system. To mount it,navigate to the disk image and double-click it. The disk image contains apackage (selected in Figure 2-4) that you can run to install Lua on your system.Double-click the package to install Lua on your system.To launch the Lua interpreter, you need to open Terminal. This is an applicationnormally located under Applications Utilities. A window appears,so you can type lua and press Enter to actually open the Lua interpreter.Figure 2-5 shows a terminal window with Lua running.