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Programming in Ruby Dave Thomas Andy Hun t 1 September 13,2000 1 Dave and Andyare authors of Programming Ruby and The Pragmatic Programmer , both from Addison-Wesley.

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Programming in Ruby Dave Thomas Andy Hunt1 September 13,2000 1 Dave and Andyare authors of Programming Ruby and The Pragmatic Programmer , both from Addison-Wesley. They run an independent consultancy from offices in Dallas, TX and Raleigh, NC. Contact them via www.pragmaticprogrammer.com Take the pure object-orientation of Smalltalk, but remove the quirky syntax and the reliance on aw orkspace. Add in the convenience and power of Perl, but without all the special cases and magic conversions. Wrap it up in a clean syntax based in part of Eiffel, and addafewconcepts from Scheme, CLU, Sather, and Common Lisp. You end up with Ruby, a language that is already more popular than Python in its native Japan. Ruby is a pure, untyped, object-oriented language—just about everything in Ruby is an object, and object references are not typed. People who enjoy exploring different OO programming paradigms will enjoy experimenting with Ruby: it has a full metaclass model, iterators, closures, reflection, and supports theruntime extension of both classes and individual objects. Ruby is being used world-wide for text processing, XML and web applications, GUI building, in middle-tier servers, and general system administration. Ruby is used in artificial intelligence and machine-learning research, and as an engine for exploratory mathematics. Rubyssimplesyntaxand transparent semantics make it easy to learn. Its direct ex ecu- tionmodeland dynamic typing let you develop code incrementally: you can typically add a feature and then try it immediately, with no need for scaffolding code. Ruby programs are typically more concise than their Perlor Python counterparts, and their simplicity makes them easier to understand and maintain. When you bump up against some facility that Ruby is lacking, youllfinditeasyto write Ruby extensions, both using Ruby and by using low level Ccodethataddsnew features to the language. We came across R ...

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