Beginning Lua Programming (Programmer to Programmer) by Aaron Brown, Kurt Jung

By Aaron Brown, Kurt Jung

This booklet is for college students and pros who're intrigued through the chance of studying and utilizing a strong language that offers a wealthy infrastructure for growing courses. No programming wisdom is critical to profit from this publication aside from the part on Lua bindings, which calls for a few familiarity with the interval. a undeniable convenience point with command-line operations, textual content modifying, and listing constructions is assumed.

Software builders who've adventure with capabilities, strings, and associative arrays can skim Chapters 2 via five with the caveat that convinced Lua colloquialisms are brought there in addition to programming concepts.

Throughout the textual content, sections relating a specific working approach are sincerely marked and will be skipped via readers engaged on a unique platform.

This publication is geared up to lead you thru the fundamentals of utilizing Lua. Its constitution is as follows:
* fitting Lua in your approach (Chapter 1)
* studying the basics of programming in Lua (Chapters 2 via 10)
* Reviewing usual Lua features (Chapter 11)
* Exploring program improvement with Lua utilizing applications contributed through the neighborhood (Chapters 12 via 18)
* utilizing Lua's many group assets (Chapter 19)

Chapters 2 via 10 each one construct on strategies which are offered in its predecessors, so a sequential interpreting of this a part of the ebook is suggested. The precis of Lua's integrated libraries comprises examples that think you will have an exceptional grab of the fabrics awarded within the first 10 chapters.

Some of the libraries and methods offered in Chapters 12 and thirteen are wanted within the ultimate chapters of the booklet. Chapters 14 via 19 are particularly self sustaining of each other and will be learn out of sequence.

You desire unusually little within the method of laptop assets to profit and use Lua. This ebook specializes in home windows and Unix-like (including Linux) platforms, yet any working approach that helps a command shell may be appropriate. You'll desire a textual content editor to arrange and store Lua scripts.

If you opt to increase Lua with libraries written in a programming language like C, you'll want a compatible software program improvement package. lots of those kits are freely on hand on the net yet, not like Lua, they could eat prodigious quantities of disk area and memory.

Chapter 18 discusses utilizing Lua on a Palm Pilot. no matter if you don't personal or have entry to at least one of those units, this bankruptcy exhibits how one can simulate one at the significant computer systems.

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Additional info for Beginning Lua Programming (Programmer to Programmer)

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If you want to install Lua in this environment, follow the directions for building Lua on Unix-type systems. The other package is the MinGW system, which enables you to use standard Unix-like tools to build applications that run on all 32-bit desktop versions of Windows without any extra support libraries. org. As you read this chapter, section headers will indicate whether a Unix-like system or Windows is being discussed. You can skip the sections that don’t apply to your platform. exe in Windows and lua in Unix and friends, is a small command-line program that executes your scripts either interactively or noninteractively.

Lua has a few special variables that start with an underscore followed by capital letters (and possibly a number), such as _G or _PROMPT2. Avoid using names like that so that your variables don’t clash with them. A single underscore (_) is often used as a variable for junk values — values that need to be assigned, but won’t be used. ) 30 Chapter 2: First Steps Multiple Assignment You can assign multiple values to multiple variables at the same time. You can also print multiple values at the same time.

Note that quotes are necessary when specifying names with spaces: mkdir “c:\program files\utility” 5 Chapter 1: Getting Situated 2. Add this directory to the Windows search path. bat file in the root directory of the boot drive. ) If the text field containing the path variable is too small to see the entire value, cut and paste the value to your text editor, make the appropriate change, and then cut and paste the modified value back to the path edit field. 3. The new search path applies only to shells that are opened after the change, so exit and restart your shell.

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