[racket-users] note about parsing speed of xml vs sxml?

I’m parsing a large-ish apple plist file, (18 megabytes), and I find that the built-in xml parsing (read-xml) takes about five times as long as the sxml version (11 seconds vs 2.4 seconds on my machine), and that the plist parser is way longer, at 18 seconds. Would anyone object if I added a

[racket-users] "Concolic Testing with Higher-Order Inputs"

Am I the first one to post about this? Looks like Robby’s giving a talk for the Chalmers online functional programming seminar series! http://chalmersfp.org/ (and yes, this URL is non-ssl only, sigh) Date: June 15th, 7am PDT / 10am EDT / 1400 UTC / 16:00 CEST Title: “Concolic Testing with

[racket-users] graphql library?

Uh oh… another protocol! Has anyone done any work on a GraphQL client library in Racket? https://graphql.org/code/#graphql-clients John -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails

Re: [racket-users] re-run really fast!

spiky green ball to know when it will > work). It doesn't work in error trace mode tho. > > Could that be it? > > Robby > > On Thu, Mar 5, 2020 at 12:25 AM 'John Clements' via users-redirect > wrote: > Okay, I’m probably under a rock and just haven’t read my e-

[racket-users] re-run really fast!

Okay, I’m probably under a rock and just haven’t read my e-mail in a week, but … I just noticed that re-running a long TR file of 900 lines took ONE second, rather than eleven. It appears to me that either TR or DrRacket or both are now cooperating to not re-compile when no edits have been

[racket-users] Re: racket-poppler dumping core & failing contract checks

Forwarding this with permission to the kind folks on racket-users… I’m having a strange problem with raco test; specifically, performing raco test on a file in a collection from the racket-poppler collection generates error text very fast… about 3 megabytes per second… with this text

[racket-users] racket-poppler dumping core & failing contract checks

I’m interested in converting TeX to picts. It looks like racket-poppler might be the way to do that. Unfortunately, I’m having trouble running racket-poppler. I ran into several problems, but fortunately, all of the problems that I saw were also observed by the test suite. Running raco test

Re: [racket-users] cast on mutable hash table...

> On Feb 15, 2020, at 10:33, Sam Tobin-Hochstadt wrote: > > You can annotate variables like that in match patterns using #{s : Symbol}, > which ought to work in common cases. > > On Sat, Feb 15, 2020, 1:23 PM 'John Clements' via users-redirect > wrote: > Yes, absolutely.

Re: [racket-users] cast on mutable hash table...

nd a type annotation to any > mutable data structure you create. > > Also, cast is almost never what you want. I see lots of people (maybe > including this student) using it as a substitute for type annotation but it > really isn't. > > Sam > > On Fri, Feb 14, 202

[racket-users] TR: cast on mutable hash table...

I think I may understand what’s going on here, but a student and I worked on this for quite a while today before I found the problem. Here’s a program: #lang typed/racket (define-type Store (Mutable-HashTable Integer Value)) (define-type Value (U Real Boolean String)) (define top-store (cast

[racket-users] Racket v7.6

-- Racket version 7.6 is now available from https://racket-lang.org/ * DrRacket's scrolling has been made more responsive. * DrRacket's dark mode support is improved for Mac OS and Unix. * Racket CS is ready for

[racket-users] resources for learning JS / React?

I have a graduate student that wants a self-guided introduction to JS and React. The problem here, to some degree, is that there are so *many* introductions. Does anyone here have specific references that might be helpful? (Say, e.g., if Gregor Kiczales did a JS course on coursera… that would

[racket-users] symlink to raco changes its behavior?

I’ve been testing the release version of racket for a few weeks now, and I notice a strange difference between using the “raco” binary that’s part of the distribution and using a symlink to that binary. Specifically, calling raco setup always requires an explicit ‘-l’ when I use the symlink.

Re: [racket-users] Confirming receipt

Confirming publicly (so you don’t get a torrent of off-list responses). John Clements > On Aug 23, 2019, at 09:10, Sage Gerard wrote: > > Hello, > > My last few emails to the user mailing list have gone without responses, and > I suspect that my emails were sent to spam or silently discarded

Re: [racket-users] racket url connection problem solved by reboot?

Oh! both excellent thoughts. Okay, I’ll try to remember this for the next time this happens. Many thanks! John > On Aug 19, 2019, at 11:10, Bogdan Popa wrote: > > The server doesn't seem to handle `Expect:' headers properly so, for > example, curl has a couple seconds' delay when you run

[racket-users] racket url connection problem solved by reboot?

This may be an OS question, but it manifested as a curious racket problem, so I thought I’d ask. Consider the following program: #lang racket (require net/url) (post-impure-port (string->url "http://brinckerhoff.org:8025/;) #"request=1234" '("Content-Type: application/x-www-form-urlencoded”))

[racket-users] Racket v7.4

Racket version 7.4 is now available from https://racket-lang.org/ With this 7.4 release, we are making Racket CS available, a beta version of the Racket on Chez Scheme implementation. Racket CS is "beta" quality for the v7.4 release. It works well enough to be worth trying, but there are

Re: [racket-users] 7 GUIs

Would it make sense to post the early ones to the 7GUIs site? They might be the easiest ones for others to understand. John > On Jun 1, 2019, at 4:47 PM, Matthias Felleisen wrote: > > > Someone recently mentioned the “7 GUIs” task. I spent a couple of days to > write up minimal solutions:

Re: [racket-users] Help narrow down problem using plt-web-server:

Apologies if this is obvious, but have you checked to see whether some other process is already listening on port 443? On a Linux server, it looks to me like you should be able to see what processes are listening on what ports by running sudo netstat -tulpn Also, you don’t mention what the

[racket-users] t-test (student's, welch's)

I often find myself wanting to use a t-test. Wikipedia suggests that really, I should probably be using Welch’s t-test, because it works well when variances and sample sizes are different, and about as well as student’s t-test when variances and sample sizes are the same. My vague

[racket-users] pkgd.racket-lang.org sign-in link down

The “sign in” link on pkgs.racket-lang.org appears to time out. It looks to me like that’s because it’s a link to pkgd.racket-lang.org (not pkgs….). I believe these are … supposed to be synonyms? When I go to pkgd.racket-lang.org I get a directory listing… looks like a misconfigured web server.

[racket-users] disappearance of cursor & ability to move cursor

I had a funny thing happen to me today in (racket7) DrRacket; the cursor disappeared. I was able to type, but only in one location; the arrow keys didn’t move the (invisible) insertion point. I restarted DrR, and the problem went away. Strange. Nothing like a bug report, but something to be on

[racket-users] TR can't generate contracts for prefab structs?

It looks to me like TR can’t generate contracts for prefab structs in a way that I would expect it to. Specifically, here’s a TR file and a Racket file that uses a TR-defined prefab structure: makes-foo.rkt: #lang typed/racket (provide (struct-out Foo) get-a-foo) (struct Foo ([a :

[racket-users] pragmatics of exhaustiveness checking in TR

TR doesn’t really do exhaustiveness checking, really, … except sorta. I’m mostly just writing this to summarize my thinking and to see if there’s something obvious I’m missing. I spent some time this morning debugging code that looked something like this: #lang typed/racket (define-type

Re: [racket-users] DrRackGit & LibGit2

> On Dec 7, 2017, at 2:34 PM, Stephen De Gabrielle > wrote: > > I should be clear, I ran the libgit2 tests by hard coding the location of the > library and running them manually. I don’t really know what I’m doing so that > was the best I could muddle through. That

Re: [racket-users] DrRackGit & LibGit2

Bradley was a student of mine, so I’m interested generally. Have you checked to see whether adding the libgit2 dependency allows the tests to pass? John > On Dec 7, 2017, at 10:27 AM, Stephen De Gabrielle > wrote: > > > Hi, >

[racket-users] desired behavior on error-during expected for check-expect?

I was debugging some student code today, and I was momentarily thrown by a message that said “both tests passed!” when most of the code was not getting run. It turned out that there was an error being signalled during the evaluation of the expected value. To see this, try this code in beginner:

[racket-users] okay for the stepper to blanket disarm all syntax?

I’m in the process of trying to update the stepper to handle check-random, and I’m somewhat baffled by the amount of difficulty I’m running into in and around ‘syntax-disarm’. It occurs to me that it would probably be simpler just to walk over the expanded syntax tree and reformulate it by

[racket-users] Fwd: Racket Con

Forwarded without comment… :) > Begin forwarded message: > > From: Jasmine Harihar Patel > Subject: Racket Con > Date: October 5, 2017 at 11:54:02 AM PDT > To: "John B. Clements" > > Dear Professor Clements, > > My name is Jasmine and I am a 2nd

Re: [racket-users] existing predicate for membership in TR Sexp type?

> On Sep 25, 2017, at 5:52 AM, Matthias Felleisen <matth...@ccs.neu.edu> wrote: > > >> On Sep 24, 2017, at 9:32 PM, 'John Clements' via users-redirect >> <us...@plt-scheme.org> wrote: >> >> Now that I know how much faster ‘assert’ can be than ‘ca

[racket-users] tooltip "im" message

I have a file on which I’m getting this DrRacket internal error: interval-map-cons*!: start is not strictly less than end im: (make-interval-map '(((390 . 410) #(struct:tooltip-info #(str... start: 3201 end: 3201 obj: (tooltip-info (object:...ivate/get-extend.rkt:134:12 ...) 320...

[racket-users] existing predicate for membership in TR Sexp type?

Now that I know how much faster ‘assert’ can be than ‘cast’, I’m eager to replace uses of ‘assert' all over the place. Specifically, in my PL class, I’m hoping to get rid of uses of (cast … Sexp) that wind up principally in RHSes of match clauses. In order to do this, I need a predicate of

[racket-users] interesting reproducible DrR core dump

I haven’t finished (or really even started) minimizing this yet, but I’m getting a reproducible core dump in DrRacket when running one of my grading scripts. It seems to be related to the top level; specifically, to trigger the crash, I have to run in DrRacket and then call a particular

Re: [racket-users] tabular text display

> On Sep 23, 2017, at 12:24, 'John Clements' via users-redirect > <us...@plt-scheme.org> wrote: > >> >> On Sep 23, 2017, at 12:02, Laurent <laurent.ors...@gmail.com> wrote: >> >> Okay, I made a stand-alone package called 'text-table', uploaded on

Re: [racket-users] tabular text display

╬╬╬╣ > ╠╬╬╬╣ > ║a ║║b ║c ║ > ╠╬╬╬╣ > ║x ║║y ║z ║ > ╚╩╩╩╝ > > If I had time I would merge the two and make it both simple and tweakable... > > On Fri, Sep 22, 2017 at 7:07 AM, 'John Clements' via users-redirect

Re: [racket-users] tabular text display

ohn > > On Thu, Sep 21, 2017 at 5:03 PM, 'John Clements' via users-redirect > <us...@plt-scheme.org> wrote: >> Before I go re-inventing the wheel, I want to ask you folks: has anyone >> written a library that prints out tabular data in a textual format? >> &g

[racket-users] tabular text display

Before I go re-inventing the wheel, I want to ask you folks: has anyone written a library that prints out tabular data in a textual format? E.G: given ‘((“a” “bcd” “ef”) (“gh” “hhu.thnt” “t”) returns " -- | a | bcd | ef | | gh | hhu.thnt | t | ——— “ (sorry

Re: [racket-users] TR for fast manipulation of C data

on, and I figured that no-check would accomplish that; I realize that it’s a "what’s-the-upper-limit-on-this" measure, not a long-term solution. John > > Sam > > On Sep 18, 2017 1:38 AM, "'John Clements' via users-redirect" > <us...@plt-scheme.org> wrote: >

Re: [racket-users] TR for fast manipulation of C data

...@eecs.northwestern.edu> > wrote: > Maybe a first step is to just (unsafely) disable the contract checking > in order to see what the upper-limit of the improvement is. > > Robby > > > On Sun, Sep 17, 2017 at 8:07 PM, 'John Clements' via users-redirect > <us.

[racket-users] TR for fast manipulation of C data

I’m currently unhappy with the speed of rsound’s resampling. This is a pretty straightforward interpolation operation; if you’re not already familiar, imagine mapping an old vector ‘o' of size M onto a new vector ’n’ of size N where each point ‘i’ in the new vector is obtained by linearly

Re: [racket-users] Testing #langs

> On Jun 29, 2017, at 09:08, Sam Waxman <samwax...@gmail.com> wrote: > > On Thursday, June 29, 2017 at 11:49:49 AM UTC-4, 'John Clements' via > users-redirect wrote: >> Oops forgot to cc: list >> >>> On Jun 29, 2017, at 08:49, John Cle

Re: [racket-users] Testing #langs

Oops forgot to cc: list > On Jun 29, 2017, at 08:49, John Clements wrote: > >> >> On Jun 29, 2017, at 08:30, Sam Waxman wrote: >> >> Hey all, >> >> I've been running into a lot of major roadblocks when it comes to writing >> good tests for

Re: [racket-users] GLPK: how many chickens to invite to your picnic?

> On Jun 23, 2017, at 10:25, Robby Findler <ro...@eecs.northwestern.edu> wrote: > > Docs link with examples? :) But of course! http://docs.racket-lang.org/glpk/index.html John > > On Fri, Jun 23, 2017 at 1:13 PM 'John Clements' via users-redirect > <us...@plt

[racket-users] GLPK: how many chickens to invite to your picnic?

Doing some operations research in Racket? Frustrated by the lack of linear programming libraries? Well, be frustrated no more! Actually, this is just a package announcement: I built a nice clean one-function interface to GLPK, the Gnu Linear Programming Kit, allowing primal simplex to do

[racket-users] immutable hash table references?

I’m introducing hash tables to students in a first-year class. Is there a handy reference for the implementation of immutable hash tables? Is this in Okasaki? John -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this

Re: [racket-users] Given any list, group n number of sublists into a single list

Sugar looks great; I just reimplemented your ‘filter-split’ for about the seventeenth time yesterday while breaking a text file into paragraphs. John -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop

Re: [racket-users] ->i applies contract projections multiple times?

> On Dec 14, 2016, at 3:56 PM, Scott Moore wrote: > > Robby beat me to it. For a longer discussion, see Christos, Robby, Cormac and > Matthias’ paper: http://www.ccs.neu.edu/racket/pubs/popl11-dfff.pdf on the > difference between dependent (->d) and indy-dependent

Re: [racket-users] DSL to C code generation with symbolic computations en route

> On Apr 19, 2016, at 3:18 PM, Hendrik Boom wrote: > > On Mon, Apr 18, 2016 at 08:04:32PM +0200, Jerzy Karczmarczuk wrote: >> Dmitry Pavlov wants "adult" numerics in Racket, and he adds: >> >>> - I need to take derivatives of equations that I wrote in my DSL, >>>

Re: [racket-users] DSL to C code generation with symbolic computations en route

> On Apr 18, 2016, at 10:29 AM, Robby Findler > wrote: > > I'm not sure if there is anything in Racketdom that will serve your > needs, but if you do end up with the "implement it" plan, do be sure > to check out Jeff Siskin's work on program analysis for the

Re: [racket-users] mode-lambda example doesn't work?

> On Apr 6, 2016, at 2:43 AM, Jay McCarthy wrote: > > Hi John, > > I'd like to debug the glClear error with you. I'll have to look up the error > to figure out where to go on it though, so I'll get back to you. > > However, the screen you see is expected. The demo has

Re: [racket-users] racket not W^X?

> On Apr 2, 2016, at 1:40 PM, Jos Koot wrote: > > A compiler produces code (in this phase data) that can be executed. > Babbage started with a machine that made distinction between program and > data. > In a Von Neuman machine there is no distinction between data and

Re: [racket-users] reaching connection pool limit on connection pool with +inf.0 limit?

> On Jan 25, 2016, at 5:51 PM, Greg Williams <gwilliam...@gmail.com> wrote: > > On Saturday, April 25, 2015 at 3:12:20 PM UTC-7, 'John Clements' via > users-redirect wrote: >> I have a long-running racket server that’s connecting to a MySQL back end. >> It

Re: [racket-users] Evaluating whatever expression halfway a debugging session

First, apologies for bouncing this back to the list, hope that’s okay… = > On Nov 4, 2015, at 2:20 AM, Marco Faustinelli > wrote: > > > What I definitely AM missing (I can't see why you contradict my personal > statement at the same time you are actually taking

Re: [racket-users] Evaluating whatever expression halfway a debugging session

-> 5) John > On Nov 4, 2015, at 9:02 AM, 'John Clements' via users-redirect > <us...@plt-scheme.org> wrote: > > First, apologies for bouncing this back to the list, hope that’s okay… > = >> On Nov 4, 2015, at 2:20 AM, Marco Faustinelli <marco.faustine...@o

[racket-users] must manually delete compiled file for tests/racket/package.rkt ?

I updated my tree today and ran make, and ran into this error: raco pkg update: packages conflict package: compatibility-test package: racket-test module path: tests/racket/package I did a little investigating, and sure enough, I can see that while this file used to be a part of the

[racket-users] new dependency on scheme-lib for build of rsound?

This is in the “very unimportant” category, but I see that as of today, running setup-plt … er … raco setup informs me that raco setup: undeclared dependency detected raco setup: for package: rsound raco setup: on package for build: raco setup:scheme-lib” It’s perfectly easy to add

Re: [racket-users] help please on git/github pull request

On Jul 3, 2015, at 2:00 AM, Tim Brown tim.br...@cityc.co.uk wrote: Thanks for the help folks! I'll take a long hard look at rebasing before I do anything. It sounds like something my mother would have advised against. On 03/07/15 03:52, Alexander D. Knauth wrote: On Jul 2, 2015, at

Re: [racket-users] help please on git/github pull request

On Jul 2, 2015, at 7:52 PM, Alexander D. Knauth alexan...@knauth.org wrote: On Jul 2, 2015, at 1:53 PM, John Clements cleme...@brinckerhoff.org wrote: On Jul 2, 2015, at 7:31 AM, Alexander D. Knauth alexan...@knauth.org wrote: After you resolve them you will (I think) need to `git

Re: [racket-users] help please on git/github pull request

On Jul 2, 2015, at 7:31 AM, Alexander D. Knauth alexan...@knauth.org wrote: On Jul 2, 2015, at 6:34 AM, Tim Brown tim.br...@cityc.co.uk wrote: Folks, I have two pull requests related to my separation of net/url-string from net/url. plt/racket #948 implementation of the separation

Re: [racket-users] Very urgent requirement || OpenShift (PaaS) Consultant @ Phoenix, AZ

On Jun 24, 2015, at 1:12 PM, Vasanth Kumar vasanth.ai...@gmail.com wrote: Hi, *plonk* -- You received this message because you are subscribed to the Google Groups Racket Users group. To unsubscribe from this group and stop receiving emails from it, send an email to

[racket-users] Molis Hai -- passwords generated from Dickens

About six months ago, I had an idea on how to generate passwords from English text while still maintaining entropy. I wrote it up quickly on ArXiv, and published a web page where you can try it: http://www.brinckerhoff.org/molis-hai/ I’ve now released it as a raco command-line tool, too. You

[racket-users] no plot zooming on local build--update procedure wrong?

I notice that currently, plot snips are not zoomable in my local build. The release candidate doesn’t seem to have this problem. I believe I’ve had this problem since before the release candidate was built. This suggests to me that the problem is not that there’s a bug in the code, but rather

Re: [racket-users] iso-recursive types not allowed in TR?

On Jun 13, 2015, at 7:37 AM, Alexander D. Knauth alexan...@knauth.org wrote: On Jun 13, 2015, at 12:18 AM, 'John Clements' via users-redirect us...@plt-scheme.org wrote: Okay, I shouldn’t change topics, but while I’ve got you (guys): it looks like (module+ test …) now works in TR

Re: [racket-users] iso-recursive types not allowed in TR?

On Jun 12, 2015, at 6:07 PM, Asumu Takikawa as...@ccs.neu.edu wrote: On 2015-06-12 17:30:42 -0700, 'John Clements' via users-redirect wrote: (define-type (HuffJsexpr T) (U T (HashTable Symbol HuffJsexpr))) The variant that Alex mentioned should work. Interesting… there *is* a problem

[racket-users] iso-recursive types not allowed in TR?

Here’s the type I want to write: (define-type (HuffJsexpr T) (U T (HashTable Symbol HuffJsexpr))) … for use in converting a tree to a jsexpr. My memory was that this wasn’t possible in TR because TR would get caught in a loop trying to figure out how many times to “unfold” the type in order

Re: [racket-users] iso-recursive types not allowed in TR?

On Jun 12, 2015, at 5:52 PM, Alexander D. Knauth alexan...@knauth.org wrote: On Jun 12, 2015, at 8:30 PM, 'John Clements' via users-redirect us...@plt-scheme.org wrote: Here’s the type I want to write: (define-type (HuffJsexpr T) (U T (HashTable Symbol HuffJsexpr))) Do you

[racket-users] right abstraction for this?

I write this kind of code all the darn time: ;; take (listof (list a b)) into (hashof a (listof b)) (define (gather l) (for/fold ([ht (make-hash)]) ([pr l]) (hash-set ht (first pr) (cons (second pr) (hash-ref ht (first pr) empty) ;; gather

Re: [racket-users] right abstraction for this?

On Jun 11, 2015, at 10:19 AM, Stephen Chang stch...@ccs.neu.edu wrote: Would any of the functions in unstable/list help? For example, Ah, ‘group-by’ is very nice, yes. Looks like that was Vincent’s? Many thanks, Vincent! John -- You received this message because you are subscribed to

[racket-users] ...aaand, too late to register for Strange Loop.

Golly, that was fast. So much for RacketCon this year. My fault, I know. John -- You received this message because you are subscribed to the Google Groups Racket Users group. To unsubscribe from this group and stop receiving emails from it, send an email to

[racket-users] can't quite reproduce this contract error involving an exported function

I just got an interesting and very scary contract error. I tried to reproduce it, but I can’t quite do it. I think I can see (part of) what’s going on, though. Suppose I have a file called bad1.rkt that is in Typed Racket (I’m guessing this is significant) and exports a structure called

Re: [racket-users] can't quite reproduce this contract error involving an exported function

On Jun 1, 2015, at 1:46 PM, Robby Findler ro...@eecs.northwestern.edu wrote: I think that if you don't have up to date .zo files, arbitrary badness can ensue. Just to check my development model; generally, when I’m working on multiple interdependent libraries in a collection, my experience

Re: [racket-users] racket-explorer now deals with cyclic/mutable data

On May 22, 2015, at 1:52 PM, Tony Garnock-Jones to...@ccs.neu.edu wrote: Hi all, I've updated racket-explorer (https://github.com/tonyg/racket-explorer) to handle cyclic (and mutable) data by lazily (and repeatedly) unfolding children only when the triangle next to an item is opened (and

[racket-users] slideshow keyboard callbacks?

I’m creating a simple slideshow, and I’d like to be able to jump to a given slide instantly, ideally by pressing a particular key. Basically, I’d like to be able to write this: #lang slideshow (extend-keyboard-handler (lambda (key default-handler) (match key [1 (jump-to-slide

[racket-users] munger package

I’m interested in your munger package for data analysis, but … it looks like there are no docs or examples? Any plans to work on this? Thanks! John Clements -- You received this message because you are subscribed to the Google Groups Racket Users group. To unsubscribe from this group and

Re: [racket-users] pkg-build report for the v6.2 release candidate

On May 14, 2015, at 4:08 PM, Matthew Flatt mfl...@cs.utah.edu wrote: Here are the results of a package build using the v6.2 release candidate: http://release-pkg-build.racket-lang.org.s3-website-us-west-2.amazonaws.com/ Compare to v6.1.1: http://pkg-build.racket-lang.org/ I believe

[racket-users] keystroke logger for DrRacket editor?

I’m interested in analyzing my own programming patterns in DrRacket. Has anyone already written a keystroke logger / editor-change-logger for DrRacket? I’m imagining that it would capture a session record starting with a known snapshot, then a sequence of keystrokes/edit actions, in such a way

Re: [racket-users] writing a dual typed / untyped library

On May 6, 2015, at 7:16 PM, Matthew Butterick m...@mbtype.com wrote: A few notes about what I learned when converting my `sugar` library to a dual Typed Racket / Racket library (in part because of performance considerations).

[racket-users] reaching connection pool limit on connection pool with +inf.0 limit?

I have a long-running racket server that’s connecting to a MySQL back end. It has a connection pool wrapped in a virtual connection, created like this: ;; create a connection to the database (define conn (virtual-connection (connection-pool (lambda () (mysql-connect #:database

Re: [racket-users] Organizing tests

On Apr 16, 2015, at 3:17 AM, Konrad Hinsen konrad.hin...@fastmail.net wrote: I am looking for an approach that lets me run either all tests in my collection, or convenient subsets (e.g. one module), ideally using a single tool such as raco test. Any suggestions? You get bonus points for

Re: [racket-users] DrRacket plugin to remove trailing whitespace on save?

for the your code is more than 102 columns warning. +1 to this. I think I’d definitely like this independent of a mechanism to trim on save. John Robby On Mon, Apr 13, 2015 at 12:06 PM, 'John Clements' via users-redirect us...@plt-scheme.org wrote: On Apr 13, 2015, at 2:29 AM, Jon Zeppieri zeppi

Re: [racket-users] DrRacket plugin to remove trailing whitespace on save?

On Apr 13, 2015, at 2:29 AM, Jon Zeppieri zeppi...@gmail.com wrote: Robby, This is my first crack at a DrRacket tool (not to mention an uncommon foray into Racket's class system), so what I'm doing may not be... sane. But if you're willing to take a look:

[racket-users] pict3d

1) pict3d is Totally magnificent. Think I said this before. 2) New OS X mouse controls are excellent. 3) Doc bug (I think). You write Shapes: visible 2D surfaces in 3D space. Surfaces are visible on only one side.” I believe the first word and the first word of the second sentence should be

Re: [racket-users] ANN: glob, for Unix-style globbing

On Mar 30, 2015, at 11:15 PM, Benjamin Greenman bl...@cornell.edu wrote: I've pushed a script for globbing to the package server. It exports two functions, `glob` and `in-glob`. I hope that some day functions like these can be in racket/file, but until then, enjoy. This looks useful.

[racket-users] abort test but not test suite?

I’m writing a test suite, and I’d like a way to abort a test without aborting a test suite. It looks to me like “fail-check” is supposed to do this. Here’s the code I wrote: #lang racket (require rackunit) (define (f x) (fail-check foo) (/ 1 0)) (check-equal? (f 3) 4) (check-equal? 9

Re: [racket-users] ANN: Gregor, a date and time library

On Mar 25, 2015, at 6:55 PM, Jon Zeppieri zeppi...@gmail.com wrote: I recently uploaded Gregor, a date and time library, to the package server. Can I use this instead of SRFI 19? That would be wonderful. John Clements Features: - representations for and generic operations on: -

[racket-users] accumulators vs foldl? was: Fwd: Rsound question

This is a pedagogic question. The discussion below (forwarded with permission) is basically about the best way to find the maximum value in a vector of length four million, a.k.a. a sound file. Non-tail recursion is problematic; I blow a 512M-limited evaluator in about 14 seconds without