Linked by Alexandru Lazar on Mon 5th Jan 2009 19:13 UTC
General Development In the age of dynamic languages and closures, most of you have probably heard of a mighty dragon called Lisp (which stands for LISt Processing), whose fans look almost with despise at other languages rediscovering it. Invented half a century ago, Lisp went on to become a de facto standard in the world of AI research, and has stood behind a handful of very neat inventions in the 1980s. Nevertheless, the long AI winter and the drift of technology towards other paradigms have almost lead to forgetting Lisp alltogether; IT has only recently started to rediscover parts of what made Lisp so cool back then.
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I agree; at its current state, Lisp does not make a good replacement for Java and .NET, not in the real world anyway. Most of those that have used Lisp for complex applications -- including some of the companies listed on the page I've posted earlier -- have complained about the lack of proper libraries. Emacs and SLIME make good enough development tools to be used, and now there are also good alternatives, like the two Eclipse plugins I can't name right now (one was called Cusp I think, I don't remember the other one). Most LISP implementations also have an excellent FFI and tools that can automatically generate bindings based on header files, but that really doesn't make a good replacement for well-written and, most importantly, well-documented actual libraries. In fact, most LISP users are a bit uncomfortable with automatically-generated FFI bindings because, when they are automatically generated, they don't make very Lispish code (and you probably don't want to write C with extra parenthesis).

Granted, there are enough libraries to cover most major areas right now, but there's a great deal of inertia. A few years ago when I first used Common LISP, the only reasonable options for GUI that I had were a toolkit called Garnet (big, complex and non-free) and Xlib bindings.

As for the syntax, I actually find it useful. Keeping track of parenthesis is hard if your text editor cannot do that automatically, but most editors do now. It also helps if it can indent your code properly. I never had problems with parenthesis. There are other problems in Lisp as a language, some of them nicely evaded by newLisp though.

It's hard to say whether these are better or worse times for Lisp. It does get a lot more attention, and (unlike some years ago) there is some proper documentation available, like Practical Common Lisp, but simply being is the spotlight is hardly enough. Unless someone manages to make up a decent, active community that actively contributes code and ideas, like that behind Perl, Ruby or Python, Lisp is really doomed to be just the language that was cool back in the 1980s (which, for large values of 1980s, really was half a decade ago :-D)

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