[racket] Question about parser-tools/lex

, given the way the lexer is implemented, but I cannot figure out how to change this behavior. Could someone please give me directions to fix this ? Thanks in advance. Regards, Philippe Mechaï Sample code: #lang racket/base (require racket/port parser-tools/lex

Re: [racket] Question about parser-tools/lex

; Test 2 (check-equal? (collect-tokens "4 a") (list (token-NUM 4) (token-ID 'a))) ;; Test 3 (check-exn exn:fail? (lambda () (collect-tokens "4a"))) ;; I thought that, given the way the NUM and ID tokens are defined (resp. only digits, only letters), the third test should pass...it does not. Thanks again for your time. Regards, Philippe Mechaï Racket Users list: http://lists.racket-lang.org/users

Re: [racket] Question about parser-tools/lex

On Thu, Oct 18, 2012 at 01:56:20PM -0600, Danny Yoo wrote: > > ;; Test 3 > > (check-exn exn:fail? (lambda () (collect-tokens "4a"))) > > ;; > > > > I thought that, given the way the NUM and ID tokens are defined (resp. only > > digits, only letters), the third test

Re: [racket-users] Should #; comments be colored as comments or code in Dr Racket?

Just for the record, the bug seems to be known to someone :) https://github.com/racket/gui/blob/master/gui-lib/framework/private/color.rkt#L989 On Mon, Oct 8, 2018 at 8:15 PM Robby Findler wrote: > I like the idea that you suggested where the parens keep their paren > color but the rest of the

Re: [racket-users] How to download image using net/http-client?

Hi You could simply do a (copy-port ip op) and remove the content-length and buffer parts i think. Le mar. 16 oct. 2018 à 21:17, Chansey a écrit : > > Dear all, > > I wrote some experiment code for net/http-client. > > The purpose is downloading some images from web. > > This is my code (run

Re: [racket-users] How to download image using net/http-client?

Indeed the issue is with your call to pipe-content-length which is to be used with pipes and is not the Content-Length header returned when doing HTTP requests. The Content-Length can be found in the list of headers returned by the call to http-sendrecv (second value or b in your let-values call).

Re: [racket-users] Difficulty using subprocess

Hi Brian I think you need to add a call to flush-output after sending data to outp Regards Philippe Le jeu. 15 nov. 2018 à 19:51, Brian Adkins a écrit : > I'm porting a Ruby application to Racket (will be deployed on Linux, but > I'm developing on OSX). It uses the s3270 terminal emulator to

Re: [racket-users] How to get libsodium-factory on OSX?

dylib is the OSX equivalent of Linux .so, so nothing wrong here. Looking at the ffi documentation it seems that libraries are looked into a list of paths reported by (get-lib-search-dirs) See https://docs.racket-lang.org/raco/dirs.html#%28def._%28%28lib._setup%2Fdirs..rkt%29._get-lib-search-dirs%29

Re: [racket-users] Dumb question about Windows paths

Hi, If I understand the racket code correctly (*), you cannot generate windows paths using strings on unix. But you can do it using bytes->path-element which allows you to specify the path-convention (windows here): (build-path/convention-type 'windows (bytes->path-element (string->bytes/utf-8