IRC channel logs

***heroux_ is now known as heroux

***_hanhart_ is now known as _hanhart

***adhoc_ is now known as adhoc

<nalaginrut>morning guilers~

***wleslie_ is now known as wleslie

<nalaginrut>so sad, gmail is very unstable for me

<paroneayea>hey thanks for that tip taylanub

<paroneayea>I updated my blogpost accordingly

<amz3>héllo :)

<mark_weaver>sneek: seen ijp?

<sneek>I last saw ijp on Jul 08 at 10:14 am UTC, saying: probably negligible if any.

<civodul>Hello Guilers!

<wleslie>hi ludo!

<nalaginrut>heya

<os_>hi, guile-gnome 2.16.3 link is broken in this page: https://www.gnu.org/software/guile-gnome/download.html

<os_>ok, i will use the mailist

***petercom1and is now known as petercommand

<taylanub>I'd love to hear opinions on http://taylanub.github.io/doc/r7rs-hashtables.html specifically with contrast to HashTablesCowan (currently down, soon to appear as SRFI-125). please be as blunt as you can.

<adhoc>"weak and ephemeral hashtables"

<adhoc>taylanub: i've little experience with that in scheme/lisp

<adhoc>used it a bit in perl

<adhoc>is the aim that they can be lazy ?

<taylanub>ephemeral is the correct implementation, non-ephemeral weak is the fast implementation.

<adhoc>ok

<amz3>I think it's the concepet of weak reference in python

<amz3> https://docs.python.org/3.5/library/weakref.html

<amz3>but it well explained in the document

<roelj>Is there an example to simply read a file using Guile?

<taylanub>roelj: reading sexprs, or text?

<roelj>taylanub: Just text

<taylanub>roelj: you can read it line-by-line via the (ice-9 rdelim) module

<roelj>taylanub: Ok, thanks.

<taylanub>(or by other delimiters. see read-line, read-delimited, etc.)

<roelj>I think this is exactly what I was looking for.

<roelj>But I have to read first

<amz3>I always look for that module

<amz3>:))

<amz3>really

<lloda>(help) searches all modules in the path if you use (use-modules (texinfo reflection)), e.g. in ~/.guile. For example (help read-line) works even when (ice-9 rdelim) isn't loaded. Would be great if ,a worked like that, too.

<amz3>what is ,a ?

<artyom-poptsov>amz3: I think it is the standard extension of a static library: https://en.wikipedia.org/wiki/Static_library

<amz3>no, it's metacommand in guile REPL

<amz3>got it

<amz3>there is even ,d which stands for ,describe

<amz3>my ~/.guile is growing

<artyom-poptsov>Ah, I thought it was a dot before "a"

<nalaginrut>hi folks, what's the suggested graphic tools?

<nalaginrut>for drawing how to capture stack frames

<nalaginrut>hi folks, what's the suggested graphic tools?

<nalaginrut>for drawing how to capture stack frames

<davexunit>nalaginrut: do you want a guile program to produce the image?

<nalaginrut>davexunit: I'm drawing it with inkscape now, but yes, I would like to do that in the future, what's it? ;-)

<nalaginrut>I think something like Scheme-postscript would be nice

<davexunit>nalaginrut: there's a guile-rsvg

<davexunit> http://wingolog.org/projects/guile-rsvg/

<nalaginrut>davexunit: oh, gitorious is empty now

<davexunit>nalaginrut: we have a guix package

<davexunit>so there's an altnerative tarball location

<nalaginrut>hmm...I need to setup my guix environment first

<nalaginrut>maybe later

<nalaginrut>davexunit: thanks for the hint ;-)

<davexunit>nalaginrut: http://wingolog.org/pub/guile-rsvg/

<davexunit>tarballs should be there

<davexunit>thanks to 'guix edit guile-rsvg' for opening it in emacs automagically :)

<nalaginrut>seems I failed to compile it

<nalaginrut>LIBRSVG_MAJOR_VERSION' undeclared

<nalaginrut>I've installed librsvg-devel

<alezost>davexunit: you can also use "M-x guix-edit"

<daviid>nalaginrut: see guile-charting as well

<davexunit>alezost: ;)

<davexunit>I don't seem to have that, though.

<davexunit>guess my emacs interface is busted.

<paroneayea>hopefully today will be a plesant day with guile and implementing json-ld

<paroneayea>let's see if i can have running code by the end of the day this time, as opposed to a pile of untested algorithms ;)

<davexunit>:)

<paroneayea>you know what's great? writing code that doesn't have users yet ;)

<davexunit>hell yeah

<paroneayea>it won't be great forever

<paroneayea>but for now

<paroneayea>I'm doing insane amounts of experimentation and refactoring that would be hard to get away with elsewhere

<paroneayea>I really need to get a up an actual automake file and and an easy way to dump in tests before that bites me though

<daviid>davexunit: fi, guile-srvg-2.18.1 compiles here

<paroneayea>ACTION stumbles into sussman's assigned readings for a class he's teaching http://groups.csail.mit.edu/mac/users/gjs/6.945/readings/

<paroneayea>some interesting stuff in here

<paroneayea>ACTION opens the robusthness paper on his other monitor to read idly while hacking

<davexunit>paroneayea: 2 papers by sussman and stallman in there

<davexunit>very cool

<davexunit>oh wow, still using MIT/GNU Scheme in 2015

<davexunit>I hear tell that I can sit in on such classes

<davexunit> https://groups.csail.mit.edu/mac/users/gjs/6.945/dont-panic/

<alezost>davexunit: it was added recently and should be available only if you use emacs ui from the guix git repo

<davexunit>paroneayea: you might like this: https://groups.csail.mit.edu/mac/users/gjs/6.945/psets/ps09/ps.txt

<davexunit>alezost: I thought I did

<davexunit>but I guess not

<alezost>davexunit: probably not, to check you may "M-x find-function guix-<anything>" and see if it is from your git repo

<paroneayea>davexunit: haha, edwin

<davexunit>alezost: yeah it's loading it from /gnu/store. I thought I had edited my load path to use my git repo...

<paroneayea>arg, I need to write some stuff that folds over either vhashes but doesn't process a key twice if there are older values... I'm writing a fold-unique procedure that secretly keeps track of what keys it has seen in a hash table but hides that from the user

<paroneayea>guess I'll leave myself a functional interface but secretly do this imperative thing

<daviid>ah! the dark side ... :)

<paroneayea>the alternative is to make the result being built up from the fold be a pair that contains both the real result and what's ben seen

<sneek>Okay.

<paroneayea>oooh

<paroneayea>davexunit: thanks for that actor model link

<davexunit>paroneayea: if a procedure only performs mutation on internal variables then it is still referentially transparent.

<davexunit>memoization is a good example of this.

<davexunit>or Clojure's concept of "transients"

<paroneayea>davexunit: yeah true

<paroneayea> http://groups.csail.mit.edu/mac/users/gjs/propagators/ huh

<paroneayea>seems like kind of a combination of the actor model, capabilities, and reactive programming

<paroneayea>not functional though ;)

<davexunit>paroneayea: there's a video somewhere where sussman discusses his propagaters

<davexunit>the implementation of reactive systems isn't functional, either.

<paroneayea>oh maybe it is

<paroneayea>semi-functional

<davexunit>though I don't know how different propagaters are from the "system of constraints" in SICP

<please_help>The following results in leaks but the hook still gets called while the leak is happening (so the problem isn't exactly the same): paste.lisp.org/+3BIF am I using scm-gc-register-allocation correctly?

<paroneayea>hello bipt!

<paroneayea>bipt: how goes things?

<taylanub>mark_weaver: I'm sorta kinda trying to drag R7RS-large in a better direction. I have no idea if I'm cut for this. if you have time, I'd be grateful if you could give some comments on http://taylanub.github.io/doc/r7rs-hashtables.html contrasted to http://trac.sacrideo.us/wg/wiki/HashTablesCowan?version=125 and tell me if I seem to be on the right track

<taylanub>others feel free to chime in, but I especially trust mark_weaver's judgment :)

<taylanub>oh, this might be a better link for the mentioned SRFI-125 than the trac link: http://www.ccil.org/~cowan/temp/srfi-125.html

<please_help>taylanub: exposing the hashing functions for the eq? and eqv? procedures is a hindrance for Scheme implementations with a moving garbage collector; what does that mean?

IRC channel logs

2015-09-07.log