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Is there a PEAR kind library for lisp? I hope there is, but I read somewhere that one of the disadvantages of lisp is its lack of serious libraries. I find that hard to believe since lisp is half a century old now.
Have you tried quicklisp?
http://www.quicklisp.org/beta/
The Common Lisp Wiki is a good place to start.
As jlf said www.cliki.net is a good starting point. Also take a closer look at asdf-install and clbuild. If you are on linux clbuild is like package manager for lisp libraries.
common-lisp.net hosts a lot of Lisp projects. Many are installable via ASDF.
See also The Common Lisp Directory.
Mudballs is also worth a look.
It's a myth that there's a lack of libraries for CL.
I can recommend clbuild to manage your libraries.
Use cl-user.net to find specific libraries.
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I'm using QuickLisp to load Common Lisp libraries. However, there are many libraries that all do similar things. For example, there are many libraries that all deal with parsing a CSV file.
Are there any resources you use to check which libraries meet your needs? How do you determine if a library is still being supported? Are there any heuristics short of visiting individual libraries's websites?
I'm aware of http://www.cliki.net/, which provides some recommendations.
There are two separate questions:
Are there any resources you use to check which libraries meet your
needs?
I just use the library's official documentation, or quickdocs as mentioned earlier. I don't think there are any comparison tables between similar libraries. But you can always ask for help on #lisp on Freenode IRC network (since StackOverflow doesn't like questions like "What's the best CL library for parsing CSV?")
How do you determine if a library is still being supported? Are there any heuristics short of visiting individual libraries's websites?
If a library is on Quicklisp then it is supported. Unsupported libraries usually drop out soon enough. Xach (Quicklisp's developer and maintainer) makes sure that there is no library in Quicklisp which can't be built on a supported CL implementation.
you can try http://quickdocs.org/
it contains a number of references to widely used libraries from quicklisp, shows their last update time and some documentation. As for me, it was nice starting point to avoid the choice paralysis
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By all accounts, Scala's Source is a bit of a mess - everything I've read about it mentions resources left open, mysterious bugs...
I was wondering whether that was still the case in recent versions of Scala and, if so, what are worthy alternatives?
I've mostly heard of scala-io and scalaz-streams (and, obviously standard Java IO primitives). Did I miss anything? If anyone has experience with these or other projects, what are their respective pros and cons?
I'm inclined to go for scala-io, since I found the author's blog to be a fairly high quality source of useful of information, but I'd love to know more about the alternatives and what other people use.
Rapture IO might be worth trying.
It provides some nice DSL for managing IO resources of various kinds.
Using the package java.nio.file in Java standard library may also be simple enough if you don't require advance features. For example, to read the lines of a file into memory:
Files.readAllLines(Paths.get("file_name"), StandardCharsets.UTF_8).asScala
And to write a sequence of lines into a file:
val strs = Seq("line1", "line2", "line3")
Files.write(Paths.get("output_file"), strs.mkString("\n").getBytes())
Check
http://docs.oracle.com/javase/tutorial/essential/io/file.html
for more information.
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When looking for a simple groovy mode plugin for emacs to get indenting and some form of syntax highlighting, I found 3 version on the groovy website.
This page is excellent at giving the overview and some down in the weeds details, however is a bit skimpy on why to choose one over the other.
There is Jeremy Rayner's groovy-mode.el which isn't painful
There is Russel Winder's identically named groovy-mode.el which is based on cc-mode.
There Stuart Clayman inferioir groovy mode inf-groovy.el
Currently I am drawn toward Jeremy's plugin, but I feel that being not painful is a poor reason to choose one over the others.
I'd like to know which ones are recommended or which ones are to be avoided?
Things changed a bit since ataylor's answer: now (March 2017) the official Groovy website links to Emacs-Groovy-Mode which combines Russel Winder's and Stuart Clayman's work.
As we may expect, the repo is available on Github.
I use Jeremy Ranyer's groovy-mode.el for the sole reason that it worked better with my code then Russel Winder's version, at the time I tested them.
Here's a small modification I've added to Rayner's that fixes some problems (the elvis operator, if I recall correctly):
(defconst groovy-block-mid-re
"need something here or it blows up"
)
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The question says it all: I'm looking for working, open source, implementations of algorithms (or derivatives there of) initially described in the Boids paper.
It looks like most of the code out there was written before "Open Source" really meant anything. I asked Mr Google:
Craig Reynolds's Boids page has a bunch of links for various languages and some mostly-original Lisp. Embedding a Lisp interpreter should not be that hard.
Christopher Kline, C++, Not-For-Profit. Licence terms for commercial apps negotiable with the author.
Tom Bak, Thong Chau, Visual C++/OpenGL/GLUT, no licence. You could try contacting them.
Robert Platt, VC++/D3D, no licence. You could try contacting him too.
You're unlikely to find anything specifically "for the iOS" (or even written in Objective-C), but C and C++ versions should be easy to port. .NET versions should be easy enough to run using MonoTouch.
This might help: Chapter from Killer game programming in Java about Flocking Boids
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I notice there is an sbaz tool that seems to have similar functionality to the ruby gem tool but I don't see any community site like gemcutter.org / rubygems.org. Is there something like this around.
There are 1084 repositories on github with scala in them. I'm surprised I can't find some centralized package management utility. Perhaps I'm just googling the wrong keywords.
The closest equivalent is probably http://scala-tools.org which maintains a Maven (ivy, sbt, etc) repository of most of the best-known packages.
Scala Tools appears to no longer be functional as of this writing. It says:
We are no longer providing any support for scala-tools.org.
Instead, it is suggested to use https://oss.sonatype.org/
As Kris said, http://scala-tools.org is the closest thing so far. We're working on improving the site, and will be enabling "static project sites" shortly. There's also http://implicit.ly/ which aims to be the standard new source for published releases.