Ask HN: what's up with HN and Lisp?

#1

Post by CoffeeDregs » Sun, Feb 13, 2011, 7:42 PM UTC

[edit: formatting]

I was browsing through HN this morning and came across the Lisp-at-JPL submission (http://news.ycombinator.com/item?id=2212211). There were about 3 other Lisp stories on the same page... And a question came to mind: putting aside PG and HN-being-written-in-Lisp, what's the deal with Hackers News and Lisp?

I'm curious about the actual status of Lisp (and Clojure) among HNers. I aspire to use Clojure, but I have not yet done so and am wondering if I oughta do a small project in it. The submissions on HN suggest I should do so. So:

  * Do you use Lisp/Clojure?   
   * On core projects at work?  On utilities or side projects at work?  
   *On serious personal projects?  On small personal projects?

  * Do you aspire to or want to use Lisp/Clojure?  Why?    
   * Learn something new?  
   * See if you experience some of that wonderfulness 
     that everyone talks about?

  * Do you know others who are serious Lispers?  
  * Are you reading HN and assuming that there are 
    lots of serious Lispers out there? (I am.)

  * Is Lisp really seeing the kind of interest and
    usage suggested by the submissions? 
  * Is HN groupthinking about Lisp?

Re: Ask HN: what's up with HN and Lisp?

#2

Post by mindcrime » Sun, Feb 13, 2011, 7:53 PM UTC

Do you use Lisp/Clojure? On core projects at work? On utilities or side projects at work? On serious personal projects? On small personal projects?

Not yet. I've only recently started making a concerted effort to learn Clojure; so I haven't written any "production" Lisp yet.

Do you aspire to or want to use Lisp/Clojure? Why? Learn something new? See if you experience some of that wonderfulness that everyone talks about?

Yes, and for all of the reasons you mention. I've been hearing about how incredible and productive Lisp is, so I want to find out first-hand if it really lives up to the hype or not. If it does, then maybe using Lisp (via Clojure) could actually represent a real competitive advantage.

Do you know others who are serious Lispers? Are you reading HN and assuming that there are lots of serious Lispers out there? (I am.)

I really don't know anybody personally who I would call a "serious Lisper." But I do know some other people who have gotten on the Clojure bandwagon and are learning Clojure.

Is Lisp really seeing the kind of interest and usage suggested by the submissions? Or is HN groupthinking about Lisp?

Who knows?

Re: Ask HN: what's up with HN and Lisp?

#3

Post by bayareaguy » Sun, Feb 13, 2011, 8:04 PM UTC

I'm eager to use Clojure professionally but Python is more practical. Another case of the "worse is better" syndrome.

Re: Ask HN: what's up with HN and Lisp?

#4

Post by JoshCole » Sun, Feb 13, 2011, 8:16 PM UTC

I do use Clojure. I'm not working yet, so its only for personal projects. However, I've been using it on all sizes of personal projects. I especially like using it for web scraping.

I do want to be using Lisp, mostly because it is giving me a chance to experience programming in a new way. The only really new thing I've learned is a sort of mental click on how programming functionally feels. However, I've also been exposed to a lot of new concepts. I don't think I've had any sort of enlightenment, but I do think I've improved.

The only other people I know who use Lisp are people I met after starting Clojure. It has some really awesome people lurking in its IRC channel.

As to whether or not the Lisp love is group think, I have no idea. I can tell you that most of my teachers in college don't even know Lisp exists and I'm the only student I know who is using it. Subjectively, my teachers don't seem very competent to me and my fellow students don't seem to program outside of the classroom.

I can tell you that Lisp doesn't seem as readable as python, but it is still fun to program in. I don't regret that I'm trying out Clojure.

Re: Ask HN: what's up with HN and Lisp?

#5

Post by igneous4 » Sun, Feb 13, 2011, 10:00 PM UTC

Like many folks, I'd reckon, I've really meant to learn Lisp or Scheme better, but it just seems like -- with the lack of syntax -- it would be tedious to write out every single operation as a function/procedure call.

Is Lisp/Scheme as tedious as I'm assuming? I'm not talking about readability -- surely one can get used to the parens and indenting and read (and write) it just fine -- I'm talking about tedium of everything having to be a procedure call.

Re: Ask HN: what's up with HN and Lisp?

#6

Post by dandrews » Sun, Feb 13, 2011, 10:26 PM UTC

I'm using Clojure for small personal projects, and a few toy applications at the office. ("The office" operates an IBM mainframe under z/OS -- sometimes this "write once run anywhere" stuff really works.)

Before my infatuation with Clojure I spent a couple of years intermittently hacking at SBCL, writing other toy applications, flirting with CLSQL and UCW and struggling with the ASDF ecosystem. CL became a disappointment because of the library problem, and because I couldn't shake the feeling that the language was overburdened. How many operators for equal do you need, anyway?

(Joke, joke. Well, sorta.)

Frightfully smart people, worthy of your respect, say you should know Lisp.

You've already surmised that there's some groupthink here on HN. PG is one of Lisp's principal cheerleaders, he writes in lucid prose and has a couple of very nice textbooks to his credit. (On Lisp is probably the best macro treatment out there.) HN is itself written in PG's own Lisp variant, and there's lots of us here who have drunk the Kool-Aid.

So do invest some time in Lisp, but don't believe for a moment that you can do a few Euler problems and have a good feeling for the language. Your effort will take some time, however long it takes to learn to recognize design patterns in Lisp code. (This is where those autoindenting editors shine.)

And which Lisp? You'll get as many opinions as there are Lisps. Clojure's emphasis on FP attracts me, and its heavy emphasis on Java interop is immensely practical. You've got eight months to go before the next Conj; better get cracking, and good luck.

Re: Ask HN: what's up with HN and Lisp?

#7

Post by SamReidHughes » Mon, Feb 14, 2011, 12:05 AM UTC

igneous4 wrote: post #5

Like many folks, I'd reckon, I've really meant to learn Lisp or Scheme better, but it just seems like -- with the lack of syntax -- it would be tedious to write out every single operation as a function/procedure call. Is Lisp/Scheme as tedious as I'm assuming? I'm not talking about readability -- surely one can get used to the parens and indenting and read (and write) it just fine -- I'm talking about tedium of every…

There's no tedium of writing everything out with parentheses, so you don't need to worry about that. You aren't writing everything "as a procedure call," or at least I wouldn't put it that way. For example, if you write babby's first recursive function in Scheme,

    (define (factorial n)
      (if (= n 0)
          1
          (* n (factorial (- n 1)))))

There, the procedure calls are (= n 0), (* n (factorial (- n 1))), (factorial (- n 1)), and (- n 1). You are not writing "(define ...)" as if it were a procedure call. You are writing it as if it were a special form (because it is one). That's a description of how it psychologically feels. Writing the (if ...) special form feels no different than writing if (...) { } else { } in Java.

Lisp and Scheme are not tedious at all. I'd say Common Lisp is one of the least tedious languages.

Re: Ask HN: what's up with HN and Lisp?

#8

Post by mark_l_watson » Mon, Feb 14, 2011, 12:11 AM UTC

dandrews wrote: post #6

I'm using Clojure for small personal projects, and a few toy applications at the office. ("The office" operates an IBM mainframe under z/OS -- sometimes this "write once run anywhere" stuff really works.) Before my infatuation with Clojure I spent a couple of years intermittently hacking at SBCL, writing other toy applications, flirting with CLSQL and UCW and struggling with the ASDF ecosystem. CL became a disappoint…

re: CL package problem: you might want to give it another try, using Quicklisp

Re: Ask HN: what's up with HN and Lisp?

#9

Post by Ingaz » Mon, Feb 14, 2011, 1:17 AM UTC

I think of Lisp not as a concrete programming language as but essence of programming itself.

I think that main feature of Lisp - Lisp is "syntaxless". And I mean not CL or Scheme or Clojure. I mean some "abstract Lisp"

But syntax sugar is not so bad in itself - you can treat python and javascript as versions of "infix scheme", you can treat java as horrible lisp-macros library, you can treat Perl as especially horrible Lisp with some funny inclusions.

I think that Lisp is a start of the road, not the end

Re: Ask HN: what's up with HN and Lisp?

#10

Post by jfields » Mon, Feb 14, 2011, 1:38 AM UTC

dandrews wrote: post #6

I'm using Clojure for small personal projects, and a few toy applications at the office. ("The office" operates an IBM mainframe under z/OS -- sometimes this "write once run anywhere" stuff really works.) Before my infatuation with Clojure I spent a couple of years intermittently hacking at SBCL, writing other toy applications, flirting with CLSQL and UCW and struggling with the ASDF ecosystem. CL became a disappoint…

I have been fluent in Scheme for some time. In fact, I used Project Euler problems and Racket (formerly called PLT) to teach myself Scheme. I enjoyed it immensely, and it reminded me of why I decided to study programming in the first place.

Unfortunately, I spent so long writing Scheme for my own amusement that I neglected my skill with C. I felt like a complete idiot the next time I tried to compose something in C, and I try to be more mindful of such things now.