[racket-users] r6rs use

Hi, i have a code that works well in #lang racket and also with other scheme compilers with minor changes,Bigloo,MIT scheme, but it does not work with #!r6rs i do not know why,here it is (some extract): #!r6rs (import (rnrs)) ... ;; sort operands in a logic expression ;;

Re: [racket-users] hash-clear*

0 > > > > > > > > > > The notes on chaperones & impersonators are only about efficiency. They > shouldn't affect your choice. > > > > On Sun, Apr 24, 2016 at 5:11 AM, Damien Mattei <damien...@gmail.com> wrote: > hi, > > > &

[racket-users] hash-clear*

hi, what is the best way to clear a hash table, hash-clear or hash-clear! ? if the hash-table is defined in a code at top-level and used in functions as a global variable, the issue i have is that when at REPL i use a first time my function (that use hash-table) it's ok but when i reuse the

[racket-users] Logos for Scheme (DrRacket,Bigloo)

Hi, just a few words to say my enhanced version of Logos (a Scheme program to maipulate logical expressions symbolically) is on sourceforge: https://sourceforge.net/projects/logos1/ improvments are the Quine–McCluskey algorithm implementation and a Bigloo version (needed adaptation mainly for

[racket-users] macros

Hi, why this does not work with DrRacket: #lang racket (define-syntax then (syntax-rules () ((_ ev) ev) ((_ ev ...) (begin ev ... (define-syntax else (syntax-rules () ((_ ev) ev) ((_ ev ...) (begin ev ... (if #f (then 1 2 3) (else 3

Re: [racket-users] Re: Scheme and Javascript

Le 31/07/2017 16:21, Greg Trzeciak a écrit : > On Monday, July 31, 2017 at 3:48:07 PM UTC+2, Hendrik Boom wrote: >> As I heard it, the people who made Javascript originally wanted to use >> Scheme, and were starting to set that up when management decided tht >> it had to look like C. They

Re: [racket-users] Turing machines

Le Saturday 10 June 2017 22:50:19 Jos Koot, vous avez écrit : > To whom is interested. > > Jay McCarthy has a nice page about how to program Turing machines: > http://jeapostrophe.github.io/2013-10-29-tmadd-post.html. > > Because I did not immediately see his implementation of producing a Turing

Re: [racket-users] Asi64 - a Racket based 6502 assembler

Le Friday 02 June 2017 23:32:58 'Ross Mckinlay' via Racket Users, vous avez écrit : > Hello Racketeers! > > I just released an early version of my first real Racket project, which > extends Racket to become a 6502 assembler. Thought I would share it here: > >

Re: [racket-users] Alternatives to DrRacket

Le Monday 27 November 2017 05:18:02 pm David Storrs, vous avez écrit : > > > 2. The macro stepper is extremely handy when it works, and being able to > > inspect syntax objects in the interactions pane is wonderful when the > > macro stepper doesn't work. > > Offtopic: This is the one big

Re: [racket-users] Alternatives to DrRacket

i use emacs with all Scheme implementations and also for Racket,when debugging i can use the racket editor that display information about trace calls but i still modify in emacs and refresh only in DrRacket, in emacs i appeciate the syntax highlighting and the search and replace fast short-cuts

Re: [racket-users] Racket Discourse

i apologize ,the confirmation mail was in the spam folder, everything is fine now thanks Damien On Tue, Nov 23, 2021 at 6:46 PM John Clements wrote: > I’m sorry to hear that! Several things to check/try > > 1) I see the confirmation email coming from “rac...@discoursemail.com”, > with subject