In addition to learning Racket I'm trying to learn literate programming. Unfortunately the Racket documentation is sparse to say the least with regards to scribble/lp. Could someone point me to some better resources on this subject or examples of literate programs written in Racket?
Thank you kindly.
Here's a small puzzle game in Racket, using the scribble/lp library: https://github.com/racket/games/blob/master/chat-noir/chat-noir-literate.rkt
Here is another shorter and self - explanatory example:
Project Repository Github.
Project Page using woven output.
It was written to cover some of the gaps in the Racket documentation.
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I am doing some study in typed racket.To understand typed racket well, I need some typed racket projects . Can anyone please give me some links where I can find some typed racket source code.Thanks
Leif is probably right about this not being right for SO. But as a quick answer, there is a lot of typed racket code shipped with Racket itself. On Ubuntu, for example, you can search for the line #lang typed/racket in /usr/share/racket/pkgs. Or you can find them on GitHub. The math or images libraries might be a good place to start.
I love the Ironclad cryptography library for Common Lisp. Out of curiosity, has anyone implemented this library into their Emacs Lisp project? In researching this question, I suspected there would be too much work to make it compatible with a pure Emacs Lips project, but a hybrid Elisp and CL project might also be an option for what I need to do.
Some of the functionality of ironclad is built-in to Emacs via the secure-hash and md5 functions. http://www.gnu.org/software/emacs/manual/html_node/elisp/Checksum_002fHash.html has more information.
These functions are written in C. I don't know for sure, but it seems like Emacs Lisp's slow speed and small fixnums would be a real obstacle for doing this work directly in pure elisp.
I got Paradigms of Artificial Intelligence Programming because I've read tons of good reviews about it, but every example have errors, I tried using SBCL and Lispworks on windows 7.
For example, I'm trying to write a scheme interpreter, this file has undefined functions, this file has undefined operators, and this file, there's something wrong with REQUIRE.
Google didn't help, it seems that I'm the only guy having these errors. The book is really amazing but I'm dying to see a working code. would you please copy/paste and see if it works for you? Is it only me who has these kind of errors?
Should i try a Clisp or something? Should i contact the author asking him to correct his code? but he is a director at google now, he won't reply to a stupid guy like me, therefore i'm coming here for help, you can't find lisp experts everywhere
Your problem is that you are treating each file as a stand-alone system. They are not independent, but build on each other.
You need to follow the instructions in the README file you link to instead of loading the individual files.
Is there any general guidelines (equivalent to How to Write Go Code ) on how to structure large racket project ?
Your question is about structuring large Racket projects, however your example link How to Write Go Code seems mainly to be about how to create a package. These aren't necessarily the same thing (although you might divide a large Racket program into different source directories, which could be "collections" or "packages"). Anyway, to address both parts:
How to structure a large Racket project: Asumu's answer provides a good link: How to Program Racket. In particular see section 3, "Units of Code", which discusses modules. Also, one technique you will see in the source code of Racket itself, is that a module may exist solely to require functions from others and provide them -- to "re-provide". In other words you can use modules like this to chunk up other modules and selectively expose them as a "layer" in your structure. Furthermore, Racket has a class system if that fits your problem domain, and generics if you have some sort of "interface" or "protocol" strategy. And more. Really, there a many, many techniques available in Racket to structure a large project.
How to make Racket packages: This is an interesting time to ask. Historically Racket has used something called Planet as a package manager. More recently, it has a new package system. Although not yet officially out of beta, many people are already using it for real work. The current documentation for that, although in a different style than the Go doc, is Package Management in Racket Beta).
You asked for general guidelines, which is a bit open-ended. If you have any specific choices you're weighing for how to structure a large project, perhaps you could ask about those one by one to get crisper answers?
There is a Racket style guide called How to Program Racket that will ship in the documentation of a future version of Racket. You can read it at the link I posted or in the bundled docs if you build the git version of Racket.
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Examples of excellent Common Lisp code?
I'm currently trying to get proficient in Common Lisp and to learn some of the tricks for writing compact, clear and beautiful code in it.
So, I want to know if you have any sources of good Common Lisp, preferably free and online but books are also OK.
The most admirable modern Common Lisp I've seen is in Edi Weitz's libraries. (Look within the outline area NerdStuff/Common Lisp/Code available on this server.) His CL-PPCRE library is worth studying in depth.
Large codebases can be schizophrenic, because there are often many contributors to the project. I would also say that contributors tend to want to add new features rather than re-write some code because it could be coded in a slightly more elegant way.
Paul Graham is attributed with good coding style. The link points to pages where his coding style in ANSI Common Lisp is commented upon.
Peter Norvig has also written about good Lisp coding style here.
Practical Common Lisp
Complete book (HTML) is free.
http://www.gigamonkeys.com/book/
Most open source Common Lisp (CL) environments ship with a lot of CL source code.
Take a look at CMUCL, CLISP and SBCL.
Cliki (the Common Lisp Wiki) has many open source CL packages.
Google Code Search is another large repository of CL code. Setting the language to "Lisp" will return both CL and non-CL files, like Emacs Lisp (.el) files. To narrow the results, set the Files text box to .lisp$ so only file names that end in .lisp are returned.
Paradigms of AI Programming. The code is online, though the book itself is not to be missed.
On Lisp is also very fine.