freenode/#lisp - IRC Chatlog

3:03:02 beach Good morning everyone!

3:27:44 jmercouris Good morning!

3:51:47 Fare Xach: still here? I saw your blog post about issues with uiop 3.3.0

3:52:03 Fare what is weird is that uiop.asd hasn't changed since uiop 3.2.0

3:52:15 Fare what version of asdf are you using?

3:52:44 Fare how come you did not experience the same issues with earlier versions of uiop?

3:53:03 Fare or did you then have an asdf more recent than those earlier versions of uiop, say asdf 3.2.1?

3:53:19 Fare and does the problem still happen with asdf 3.3.0 ?

3:55:05 vutral is there a simple way to expose a lisp interpreter by tcp ?

3:56:28 Zhivago You could have an account which ran the interpreter as its shell. This would allow access via telnet or ssp. It would be simple, but perhaps unwise.

3:56:46 vutral i just thought about the same thing ^^

3:57:07 vutral but it doesnt allow multiple connections to the same interpreter

3:57:23 vutral so its not exactly what i want

3:57:28 turkja or maybe play with things like socat? but i don't know how well these things work readline etc.

3:58:02 vutral i could imagine socat can do it

3:58:20 beach vutral: Why does it have to be an interpreter. Are you particularly attached to bad performance? Also, insisting that it is an interpreter will limit the number of Common Lisp implementations available to you.

3:59:15 Zhivago vutral: Why do you want the interpreter to be shared between connections?

3:59:57 vutral Zhivago, to access it from other programming languages

4:00:54 vutral i guess i should write some kind of tcp server in lisp which evaluates input and returns the result

4:01:08 vutral then i am not limited in lisp implementation

4:01:40 Zhivago Are you perhaps looking for some kind of RPC inteface?

4:02:03 vutral that would work too

4:02:31 Zhivago In that case, I would start by looking at those.

4:02:45 Fare vutral: you can make SLIME servers available on a port available through ssh redirection

4:03:10 vutral Fare, slime ?

4:03:28 Fare I knew someone who did that in a distributed system --- plenty of slaves listening to orders via SWANK

4:03:54 Fare so you could attach to any individual slave and pass it commands

4:03:59 Fare and/or debug it

4:04:22 Fare of course, don't expose that directly on the internet

4:05:12 jmercouris Anything connected to the internet is inherently exposing all of its resources, but I agree, take precautions

4:05:24 Fare https://github.com/brown

4:06:25 Zhivago You can always use a vpn without external routing.

4:23:09 nixfreak Hello I am looking for away to create "hot folders" like a workflow, where I can drop files in a folder and it goes through a workflow

4:23:37 nixfreak I haven't found much online so wondering if anyone has any ideas how to do this ?

4:23:48 beach nixfreak: How is that question related to Common Lisp?

4:24:20 nixfreak I would like to use common lisp to create it then plug it in org mode

4:25:25 beach "org mode" as in Emacs?

4:25:49 nixfreak yes

4:26:00 nixfreak if it works

4:26:08 beach How do you plan to plug a Common Lisp program into Emacs Lisp?

4:26:17 nixfreak if not then just a program to create

4:41:16 beach nixfreak: If you are going to make something like that compatible with the underlying operating system, i.e., use OS directories for the folders and OS files for the files, then I suspect you won't get much help from Common Lisp compared to other languages.

4:42:25 loke nixfreak: There are libraries that hook into the file notification infrastructure of your operating system

4:42:49 loke There are a few CL libraries for that, like cl-fsnotify, cl-inotify and inotify

4:43:05 loke Since this meahcnism is different in all different operating systems, I don't knwo which one is the best one.

4:43:07 nixfreak ok thanks for the information

4:43:23 loke I also thing IOLIB has something that can do it.

4:54:12 turkja hey still about SLIME... i wonder if there are good libraries for python or other language to connect to slime server?

4:54:30 turkja then just send s-expressions over the connection

4:56:00 turkja well i don't know about SLIME protocol, maybe it's simple enough to connect with raw tcp and start throwing expressions?

4:58:03 thebardian any good mailing lists for beginning/intermediate lispers?

5:01:40 Zhivago Are you sure that s-expressions are the right medium for this?

5:02:13 Zhivago Having unrestricted communication is probably not a good idea for purposes of security.

5:02:20 turkja i mean SWANK of course (i should go back to sleep)

5:03:18 Zhivago They also require the caller to be able to print things as expected for that lisp implementation.

5:03:41 turkja i don't know, i didn't see what exactly vutral is trying to do... but to his initial question, i think "socat" can do the job in a dirty way

5:07:39 Fare oh, I misread Xach's blog as meaning there was brokenness and e.g. an infinite loop. But reproducing the bug, I see that's it's the known behavior of asdf < 3.3.0 and has nothing to do with uiop.

5:09:22 d4ryus1 ** NICK d4ryus

5:09:57 beach thebardian: Here is fine, unless your questions become repetitive and trivial.

5:10:50 beach turkja: Xof wrote such a thing for R.

5:12:04 thebardian Got it. Thanks

5:16:21 mfiano Hello all. I found a nasty bug in the fast-io library. I wrote a little test case to reproduce it, but I'm having a hard time figuring out why it occurs.

5:18:17 mfiano This is supposed to behave similarly to cl:read-sequence, except when I read a single byte from a stream, it reports that it read the entire stream's contents. this does not occur when reading from a vector. https://github.com/rpav/fast-io/blob/master/src/io.lisp#L142-L163

5:19:40 mfiano test case: https://gist.github.com/mfiano/c07b07069908ea80a6816fb6862ceffe

5:19:48 mfiano any ideas?

5:24:37 Zhivago Well, 162 seems pretty damning at a glance.

5:25:31 Zhivago But there's no documentation, so it's not clear what it ought to be doing in the first place.

5:26:08 mfiano indeed. there lies my problem. sad part is this is being used by quite a few projects so i'm surprised it hasn't been detected

5:26:33 Fare maybe use iolib instead?

5:29:17 mfiano I'm using a third party library that uses fast-io, and it doesn't depend on a C library

5:29:57 Zhivago Well, why not fix it to do what you expect, and then submit a patch?

5:30:20 mfiano I have been trying to. I just don't see how to fix it

5:30:50 mfiano Also the author moved away from lisp, so I'd have to become familiar enough with it to fork and maintain it

5:31:17 Zhivago Isn't it just a matter of giving read-sequence in 162 the right end point?

5:32:14 mfiano maybe?

5:32:29 Zhivago Should be an easy theory to test.

5:32:45 mfiano heh, (length (ql:who-depends-on "fast-io")) => 24

5:35:44 Fare mfiano, you might be the new maintainer..

5:37:56 Zhivago The position comes with a fancy hat.

5:41:07 mfiano I maintain enough libraries, and if I were to maintain this, I'd rewrite it from scratch. The code is a bit...obtuse

5:52:31 beach thebardian: Are you just planning to learn Common Lisp for kicks, or do you have any particular projects in mind?

6:11:49 Fare mfiano: this is how maintainers are made: someone who cares enough to complain about some software... https://fare.livejournal.com/149264.html

6:14:33 phoe_ hah, good read

6:53:21 Ven ** NICK Guest65906

7:19:39 knobo luis: slime pr ok?

7:33:33 hajovonta hi

8:03:28 Ven ** NICK Guest16823

8:25:27 scymtym Fare: re UIOP 3.3.0 problem: would upgrading SBCL's bundled ASDF (and UIOP) to 3.3.0 also cause this problem?