I do most of my development in Common Lisp, but there are some moments when I want to switch to Scheme (while reading Lisp in Small Pieces, when I want to play with continuations, or when I want to do some scripting in Gauche, for example). In such situations, my main source of discomfort is that I don't have Slime (yes, you may call me ...
I understand what a Y Combinator is (those who don't should go here), but I don't understand this example of a "novel" YC, from the Wikipedia page: Yk = (L L L L L L L L L L L L L L L L L L L L L L L L L L) where: L = λabcdefghijklmnopqstuvwxyzr. (r (t h i s i s a f i x e d p o i n t c o m b i n a t o r)) How does this work? ...
C++ is probably the most popular language for static metaprogramming and Java doesn't support it. Are there any other languages besides C++ that support generative programming (programs that create programs)? Which ones are the best (for learning, for efficiency, for maintenance, for embedded systems, whatever)? ...
Ideally something that will work with Oracle, MS SQL Server, MySQL and Posgress. ...
Please respond with one by one. If you explain why it is not true then try to avoid general statements and provide particular examples. ...
What is the added value for learning F# when you are already familiar with LISP? ...
What is the best way to create reverse index for full text search in Common Lisp ? Is there any proven and (relatively) bug-free open library for SBCL or LispWorks ? I managed to create my own library on top of AllegroCache - it was fairly easy to create, reliable and fast, but lacks advanced search options (phrases, wildcarded words in...
I've been learning Lisp to expand my horizons because I have heard that it is used in AI programming. After doing some exploring, I have yet to find AI examples or anything in the language that would make it more inclined towards it. Was Lisp used in the past because it was available, or is there something that I'm just missing? ...
When I try to compile the newest version of Clisp on Ubuntu 8.04 I always get this error after running configure: Configure findings: FFI: no (user requested: default) readline: yes (user requested: yes) libsigsegv: no, consider installing GNU libsigsegv ./configure: libsigsegv was not detected, thus some features, such as gene...
I know there is a list-comprehension library for common lisp (incf-cl), I know they're supported natively in various other functional (and some non-functional) languages (F#, Erlang, Haskell and C#) - is there a list comprehension library for Scheme? incf-cl is implemented in CL as a library using macros - shouldn't it be possible to us...
I've read JRM's Syntax-rules Primer for the Merely Eccentric and it has helped me understand syntax-rules and how it's different from common-lisp's define-macro. syntax-rules is only one way of implementing a syntax transformer within define-syntax. I'm looking for two things, the first is more examples and explanations of syntax-rules...
After making it through the major parts of an introductory Lisp book, I don't understand what the (quote) (or equivalent ') function does, yet it's been all over Lisp code that I've seen. What does it do? ...
In other words, a block of code like this: (setq initial-major-mode (lambda () (text-mode) (font-lock-mode) )) ... would come out looking like something like this: If something like this already exists, what is it? And if it doesn't exist, how should I go about writing it? ...
I'm currently primarily a D programmer and am looking to add another language to my toolbox, preferably one that supports the metaprogramming hacks that just can't be done in a statically compiled language like D. I've read up on Lisp a little and I would love to find a language that allows some of the cool stuff that Lisp does, but wit...
At the moment I use PHP for almost everything I develop for the Web but its linguistic limitations are starting to annoy me. However, as I developed some practices and maintain some PHP libraries that help me a lot, I don't feel I'd be ready to just switch to LISP throwing away all my PHP output. It could even be impossible on the server...
I'm writing an interactive function that I'd like to have remember the last argument the user supplied and use it as the default. (defun run-rake (param) (interactive "sTask: ") (shell-command (format "rake %s" task))) The first time the function is invoked I want it to remember the argument the user supplied so that the next ti...
I've searched a lot for an answer for this question in the web: they say it's true, SBCL doesn't work under Vista. But I really need to work with lisp on my home Vista laptop and VM doesn't help really... And CL is not so interesting because of speed... If you have any recommendation, please share! ...
If I have a boolean function f(x) = {print(x); return is_even(x)} that does some time-consuming (in this example, for illustrative purposes, side-effect-producing) stuff and a list a={2,3,4} I can check if f() is true for every element of a with apply(And, map(f, a)) but that wastefully applies f to every element of a instead of retur...
I need something like this, a collection of elements which contains no duplicates of any element. Does Common Lisp, specifically SBCL, have any thing like this? ...
What are the popular (ok, popular is relative) web frameworks for the various flavours of LISP? ...