Re: [racket-users] Comparing (delimited) continuations in Racket
This is not a direct answer, but has a few different answer-like things. The Racket contract system has a similar problem to solve. Suppose contracted procedure is supposed to return a number? value. The state would look like this: ( continuation (obey-or-error number? ( function body ))) Now, suppose that the function ends in a tail-call to a different procedure that is also expected to return a number? ( continuation (obey-or-error number? (obey-or-error number? ( function body Clearly this pattern can cause the obey-or-error frames to pill up and consume arbitrary space, despite the fact that all but the inner-most is unnecessary. The solution is for the code that inserts the obey-or-error call to inspect the continuation and tell if it is already going to check some particular contract. This is like what you need to do: decide if the continuation is the same, but not on an eq?-basis, but actually on a deeper more nuanced basis. This is preciously the featured enabled by continuation marks (with-continuation-mark and current-continuation-marks). They allow your code to install information into the stack and then inspect it later. If your request for tell if two continuations are the same is about some such deeper property, then maybe you want to learn about continuation marks as a more direct way to do it. You could also hack #%app as you suggest by doing something like: #lang racket/base (require racket/list) (define k-id (gensym 'k-id)) (define-syntax-rule (#%whats-app . e) (with-continuation-mark k-id (gensym) (#%app . e))) (define (continuation-id k) (continuation-mark-set-first (continuation-marks k) k-id)) (define (same-continuation? k1 k2) (eq? (continuation-id k1) (continuation-id k2))) (define (f x) (if (zero? x) empty (let/cc k (cons k (#%whats-app f (sub1 x)) (define (snoc l x) (append l (list x))) (define (g x) (define l empty) (let loop ([x x]) (unless (zero? x) (let/cc k (set! l (snoc l k)) (loop (sub1 x) l) (module+ test (define fl (#%whats-app f 5)) (same-continuation? (first fl) (second fl)) (define gl (#%whats-app g 5)) (same-continuation? (first gl) (second gl))) Finally, you could also write your program in #lang web-server which reifies the continuation as a serializable object when you capture it. These values can be compared with equal? and will do exactly what you want. Jay On Fri, Aug 14, 2015 at 6:40 AM, Klaus Ostermann klaus...@gmail.com wrote: Is there any way in Racket to use (delimited) continuations to find out whether I'm evaluating an expression in the same evaluation context as before? Let's assume for a second that Racket had an ordinary call stack, and I could access that call stack as a first-order value. Then I could compare two call stacks and find out whether they denote the same evaluation context or not. But continuations are of course Racket procedures and eq? always yields #f. There is literature on defunctionalizing continuations, which would yield a first-order representation of a continuation, but of course I don't want to defunctionalize by hand, hence I wonder whether there is some way to do this with the batteries that are included in Racket. Presumably I could hack something by redefining the application macro, but that's not what I want. Any ideas? -- 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+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- Jay McCarthy http://jeapostrophe.github.io Wherefore, be not weary in well-doing, for ye are laying the foundation of a great work. And out of small things proceedeth that which is great. - DC 64:33 -- 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+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [racket-users] Comparing (delimited) continuations in Racket
Robby, I think what I want is simple to say: If I have a Racket program and manually CPS-transform and then defunctionalize it, I would be able to compare and analyze continuations (and normal procedures, for that matter). I want to be able to do the same without CPS-transforming and defunctionalizing by hand, and I was hoping that there is some way to do that in terms of the continuation machinery in Racket. -- 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+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [racket-users] HTTPS connection through proxy (CONNECT HTTP Method)
On Wednesday, August 12, 2015 at 9:54:23 PM UTC+1, Sean Kemplay wrote: On Wednesday, August 12, 2015 at 12:54:10 PM UTC+1, Jay McCarthy wrote: On Tue, Aug 11, 2015 at 10:24 AM, Sean Kemplay sean.kemp...@gmail.com wrote: Hi All, Sending an http request through our corporate proxy works as follows for http requests - (define-values (x y z) (http-sendrecv 10.0.0.200 http://www.example.com; #:port 8080 #:headers '( Proxy-Authorization: Basic base64encodedcredentials Proxy-Connections: keep-alive ) #:ssl? #f #:method GET)) However fails for HTTPS requests (as expected). What I need to do is make a request like the above using the #:method CONNECT and then make a secondary request through a returned connection. Does anyone know how I would go about doing that in Racket? http-sendrecv combines calls to http-conn-open, http-conn-send!, http-conn-recv!, then http-conn-close!. I suspect that you just need to break up that one big call into a few calls like open, send, recv, send, recv, close. I'd be happy to work on it with you, but I don't have such a proxy on hand, so I'll need helping testing it. Jay Kind regards, Sean -- 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+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- Jay McCarthy http://jeapostrophe.github.io Wherefore, be not weary in well-doing, for ye are laying the foundation of a great work. And out of small things proceedeth that which is great. - DC 64:33 Hi Jay, Thanks for that, yes I think you are right. I have just installed squid at home which also supports http tunnelling. I'll see how I get on and post my results - whether they be good or bad! It would be really good to at least get an example on the wiki for others to build from, as I suspect a lot of corporate networks are behind proxies and this would be problematic in using Racket to make calls to REST APIs etc which my job at least requires a lot of. Kind regards, Sean Hi Jay, Unfortunately I am not getting very far with this. Our app servers where our production code sits are not behind a proxy, so at the end of the day it doesn't rule out using Racket for some of the tasks I have in mind. It would be nice to be able to get through the proxy from my desktop to test code though. I tried the following but the connection is ending early - #lang racket (require net/http-client) (define conn (http-conn-open 10.0.0.200 #:port 8080)) (http-conn-send! conn https://news.ycombinator.com/; #:method CONNECT #:headers '(Proxy-Authorization: Basic base64encodedcredentials Connection: Keep-Alive) #:version #1.1) (define-values (a b c)(http-conn-recv! conn #:close? #f)) (http-conn-send! conn / #:method GET); #:headers '(Proxy-Authorization: Basic Y3hnXHNlYW4ua2VtcGxheTpBdWd1c3QyMDE0 Connection: Keep-Alive) #:version #1.1) (define-values (e f g) (http-conn-recv! conn)) (http-conn-close! conn) I am basing the above on this S/O post but am not entirely sure if this is even the path I should be pursuing! http://stackoverflow.com/questions/11697943/when-should-one-use-connect-and-get-http-methods-at-http-proxy-server Here is an example using Node, it opens the connection to the uri through the proxy, then writes to that connection through an SSL connection which is something I can't see how to do in Racket. http://blog.vanamco.com/proxy-requests-in-node-js/ I will keep digging, if you have any Ideas or anything I could test against our network it would be much appreciated. Kind regards, Sean -- 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+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[racket-users] Re: FrTime basics
On 13/08/15 22:55, Aidan Gauland wrote: Are there any non-graphical FrTime demos? I'm trying to figure out how to define your own behaviors, and just going by the manual http://docs.racket-lang.org/frtime/, it seems rather imperative in nature, which is not what I understood it to be from reading the whitepaper. https://cs.brown.edu/people/sk/Publications/Papers/Published/ck-frtime/paper.pdf [snip] Something seemed to click in my head last night after my original post, and it occurred to me to try this (in DrRacket). Welcome to DrRacket, version 6.2 [3m]. Language: FrTime; memory limit: 128 MB. (define rx (event-receiver)) (define foo (+ 3 (hold rx))) foo undefined (send-event rx 5) ;; The undefined magically changes to 8. So I think I've got it now. I suspect I'll have to pick Greg Cooper's brain about FrTime's innards and undocumented public procedures, once I've been using it (the documented part of it, anyway) for a while. --Aidan -- 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+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [racket-users] Website Eyecandy from days gone by
Thanks Eli. On 13/08/15 18:30, Eli Barzilay wrote: On Mon, Aug 10, 2015 at 5:35 AM, Tim Brown tim.br...@cityc.co.uk wrote: Folks, The “PLT Scheme” website, as was, had a set of preview pictures along the left hand side which scrolled in a “fish-eyed” kind of way (you either know what I’m talking about or not). Is the source of this (or anything similar) available anywhere for me to “learn” from? You can still see it on the old website: http://plt-scheme.org/screenshots/ (just dismiss the nag message with the close button). There's a possibly slightly newer version on my pages, eg http://barzilay.org/random/reflection2.html In both cases, you can just look at the source to see the JS code. IIRC, it should just be inlined on the page. (And apply the usual disclaimers about old JS code that was fighting browser problems, many of which are probably dead.) -- Tim Brown CEng MBCS tim.br...@cityc.co.uk City Computing Limited · www.cityc.co.uk City House · Sutton Park Rd · Sutton · Surrey · SM1 2AE · GB T:+44 20 8770 2110 · F:+44 20 8770 2130 City Computing Limited registered in London No:1767817. Registered Office: City House, Sutton Park Road, Sutton, Surrey, SM1 2AE VAT No: GB 918 4680 96 -- 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+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [racket-users] HTTPS connection through proxy (CONNECT HTTP Method)
On Friday, August 14, 2015 at 10:22:03 AM UTC+1, Sean Kemplay wrote: On Wednesday, August 12, 2015 at 9:54:23 PM UTC+1, Sean Kemplay wrote: On Wednesday, August 12, 2015 at 12:54:10 PM UTC+1, Jay McCarthy wrote: On Tue, Aug 11, 2015 at 10:24 AM, Sean Kemplay sean.kemp...@gmail.com wrote: Hi All, Sending an http request through our corporate proxy works as follows for http requests - (define-values (x y z) (http-sendrecv 10.0.0.200 http://www.example.com; #:port 8080 #:headers '( Proxy-Authorization: Basic base64encodedcredentials Proxy-Connections: keep-alive ) #:ssl? #f #:method GET)) However fails for HTTPS requests (as expected). What I need to do is make a request like the above using the #:method CONNECT and then make a secondary request through a returned connection. Does anyone know how I would go about doing that in Racket? http-sendrecv combines calls to http-conn-open, http-conn-send!, http-conn-recv!, then http-conn-close!. I suspect that you just need to break up that one big call into a few calls like open, send, recv, send, recv, close. I'd be happy to work on it with you, but I don't have such a proxy on hand, so I'll need helping testing it. Jay Kind regards, Sean -- 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+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- Jay McCarthy http://jeapostrophe.github.io Wherefore, be not weary in well-doing, for ye are laying the foundation of a great work. And out of small things proceedeth that which is great. - DC 64:33 Hi Jay, Thanks for that, yes I think you are right. I have just installed squid at home which also supports http tunnelling. I'll see how I get on and post my results - whether they be good or bad! It would be really good to at least get an example on the wiki for others to build from, as I suspect a lot of corporate networks are behind proxies and this would be problematic in using Racket to make calls to REST APIs etc which my job at least requires a lot of. Kind regards, Sean Hi Jay, Unfortunately I am not getting very far with this. Our app servers where our production code sits are not behind a proxy, so at the end of the day it doesn't rule out using Racket for some of the tasks I have in mind. It would be nice to be able to get through the proxy from my desktop to test code though. I tried the following but the connection is ending early - #lang racket (require net/http-client) (define conn (http-conn-open 10.0.0.200 #:port 8080)) (http-conn-send! conn https://news.ycombinator.com/; #:method CONNECT #:headers '(Proxy-Authorization: Basic base64encodedcredentials Connection: Keep-Alive) #:version #1.1) (define-values (a b c)(http-conn-recv! conn #:close? #f)) (http-conn-send! conn / #:method GET); #:headers '(Proxy-Authorization: Basic Y3hnXHNlYW4ua2VtcGxheTpBdWd1c3QyMDE0 Connection: Keep-Alive) #:version #1.1) (define-values (e f g) (http-conn-recv! conn)) (http-conn-close! conn) I am basing the above on this S/O post but am not entirely sure if this is even the path I should be pursuing! http://stackoverflow.com/questions/11697943/when-should-one-use-connect-and-get-http-methods-at-http-proxy-server Here is an example using Node, it opens the connection to the uri through the proxy, then writes to that connection through an SSL connection which is something I can't see how to do in Racket. http://blog.vanamco.com/proxy-requests-in-node-js/ I will keep digging, if you have any Ideas or anything I could test against our network it would be much appreciated. Kind regards, Sean Just an update on this, looking at the code for http-client I now understand that http-conn is a struct with an input and output port from a tcp connection. Based on the node.js example I am thinking of instead of calling http-conn-send! a second time with a different method I need to write a function along the lines of http-conn-tunnel! which somehow pipes ssl input and output ports from the tcp input and output ports from http-conn's input and output pipes. -- 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+unsubscr...@googlegroups.com. For more options, visit
Re: [racket-users] Comparing (delimited) continuations in Racket
On Fri, 14 Aug 2015 07:29:37 -0500, Robby Findler wrote: For that you would have to write a (straightforward) compiler that transformed a fully expanded Racket program into another program (in that same language), inserting with-continuation-mark expressions around every subexpression. Run the transformed program. Then, at the point that you wish to compare with another, you can get the marks and compare them with another set you got earlier. This won't be a short function (as Racket is not a toy language), but it will be a straightforward one; you do not need to cps-convert or defunctionalize. We have few transformations along these lines implemented already that you may wish to look at. The most commonly used one is errortrace and it is what we use to get the precise stacktraces that DrRacket shows you. A similar transformation is used to do test coverage and another to get profiling information. The library is called errortrace and that search key in the docs should provide you with more information. To expand a little on that, I think you should be able to reuse errortrace out of the box (e.g., by running your code with `racket -l errortrace my-file.rkt`), and looking up the continuation marks with key `errortrace-key` (from `errortrace/errortrace-key`). Errortrace is usable both as a standalone annotator (as in the instructions above), and as a library. The former is easier to use, and it sounds like it may be enough for your purposes. Vincent -- 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+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [racket-users] Comparing (delimited) continuations in Racket
(1) how grey is your cat? The color of a television, tuned to a dead channel. Robby -- 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+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [racket-users] Comparing (delimited) continuations in Racket
On 08/14/2015 11:16 AM, Robby Findler wrote: The color of a television, tuned to a dead channel. Bright, pure, sky blue? What an unusual grey. https://twitter.com/DJSundog/status/629659761902948352 -- 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+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [racket-users] HTTPS connection through proxy (CONNECT HTTP Method)
On Friday, August 14, 2015 at 3:41:04 PM UTC+1, Sean Kemplay wrote: On Friday, August 14, 2015 at 10:22:03 AM UTC+1, Sean Kemplay wrote: On Wednesday, August 12, 2015 at 9:54:23 PM UTC+1, Sean Kemplay wrote: On Wednesday, August 12, 2015 at 12:54:10 PM UTC+1, Jay McCarthy wrote: On Tue, Aug 11, 2015 at 10:24 AM, Sean Kemplay sean.kemp...@gmail.com wrote: Hi All, Sending an http request through our corporate proxy works as follows for http requests - (define-values (x y z) (http-sendrecv 10.0.0.200 http://www.example.com; #:port 8080 #:headers '( Proxy-Authorization: Basic base64encodedcredentials Proxy-Connections: keep-alive ) #:ssl? #f #:method GET)) However fails for HTTPS requests (as expected). What I need to do is make a request like the above using the #:method CONNECT and then make a secondary request through a returned connection. Does anyone know how I would go about doing that in Racket? http-sendrecv combines calls to http-conn-open, http-conn-send!, http-conn-recv!, then http-conn-close!. I suspect that you just need to break up that one big call into a few calls like open, send, recv, send, recv, close. I'd be happy to work on it with you, but I don't have such a proxy on hand, so I'll need helping testing it. Jay Kind regards, Sean -- 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+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- Jay McCarthy http://jeapostrophe.github.io Wherefore, be not weary in well-doing, for ye are laying the foundation of a great work. And out of small things proceedeth that which is great. - DC 64:33 Hi Jay, Thanks for that, yes I think you are right. I have just installed squid at home which also supports http tunnelling. I'll see how I get on and post my results - whether they be good or bad! It would be really good to at least get an example on the wiki for others to build from, as I suspect a lot of corporate networks are behind proxies and this would be problematic in using Racket to make calls to REST APIs etc which my job at least requires a lot of. Kind regards, Sean Hi Jay, Unfortunately I am not getting very far with this. Our app servers where our production code sits are not behind a proxy, so at the end of the day it doesn't rule out using Racket for some of the tasks I have in mind. It would be nice to be able to get through the proxy from my desktop to test code though. I tried the following but the connection is ending early - #lang racket (require net/http-client) (define conn (http-conn-open 10.0.0.200 #:port 8080)) (http-conn-send! conn https://news.ycombinator.com/; #:method CONNECT #:headers '(Proxy-Authorization: Basic base64encodedcredentials Connection: Keep-Alive) #:version #1.1) (define-values (a b c)(http-conn-recv! conn #:close? #f)) (http-conn-send! conn / #:method GET); #:headers '(Proxy-Authorization: Basic Y3hnXHNlYW4ua2VtcGxheTpBdWd1c3QyMDE0 Connection: Keep-Alive) #:version #1.1) (define-values (e f g) (http-conn-recv! conn)) (http-conn-close! conn) I am basing the above on this S/O post but am not entirely sure if this is even the path I should be pursuing! http://stackoverflow.com/questions/11697943/when-should-one-use-connect-and-get-http-methods-at-http-proxy-server Here is an example using Node, it opens the connection to the uri through the proxy, then writes to that connection through an SSL connection which is something I can't see how to do in Racket. http://blog.vanamco.com/proxy-requests-in-node-js/ I will keep digging, if you have any Ideas or anything I could test against our network it would be much appreciated. Kind regards, Sean Just an update on this, looking at the code for http-client I now understand that http-conn is a struct with an input and output port from a tcp connection. Based on the node.js example I am thinking of instead of calling http-conn-send! a second time with a different method I need to write a function along the lines of http-conn-tunnel! which somehow pipes ssl input and output ports from the tcp input and output ports from http-conn's input and output pipes. I haven't given up... yet! I exported http-conn-from and
[racket-users] Using the draw and plot packages with other languages
Dear all, As everybody knows, Racket's plot library is feature-rich and produces beautiful output. The draw library is also great for generating diagrams. I prefer functional-style drawing over LaTeX packages. What I would like to do is to be able to use these libraries in Maxima, Julia and other scientific computing environments. If I understand correctly, the plot package relies on the draw package, which in turn uses cairo. Since Racket is a compiled language, I thought that perhaps it would be possible to compile these packages as shared libraries and then (ideally automatically) generate bindings for the desired language. Given that a lot of time and expertise is involved in the development of the tools used in the scientific computing workflow, I believe that in order to maximize the profit and minimize the duplication of effort, such tools should be able to interoperate smoothly. In my view, the core algorithms should be written once in a compiled language and then all that should be needed to use them in your prefered language is to generate the bindings. It really bothers me that the current status of scientific software engineering is such that there are several implementations of plotting libraries, computer algebra systems, numerical routines libraries, etc. all doing mostly the same things but differing in the language in which they are written. Note that I have nothing against diversity, but it seems to me that there is too much reinventing the wheel. I look forward to your comments. Best, Marduk -- 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+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[racket-users] Comparing (delimited) continuations in Racket
Is there any way in Racket to use (delimited) continuations to find out whether I'm evaluating an expression in the same evaluation context as before? Let's assume for a second that Racket had an ordinary call stack, and I could access that call stack as a first-order value. Then I could compare two call stacks and find out whether they denote the same evaluation context or not. But continuations are of course Racket procedures and eq? always yields #f. There is literature on defunctionalizing continuations, which would yield a first-order representation of a continuation, but of course I don't want to defunctionalize by hand, hence I wonder whether there is some way to do this with the batteries that are included in Racket. Presumably I could hack something by redefining the application macro, but that's not what I want. Any ideas? -- 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+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [racket-users] Comparing (delimited) continuations in Racket
Hi Klaus, For what it’s worth, AspectScheme, which needs the call stack to express control flow related pointcuts, redefines the #%app macro to reify the parts of the call stack that you need using continuation marks. I doubt there is a way other than that one to reify the call stack, but if there is, I would really like to know :) -- Éric On Aug 14, 2015, at 7:40 AM, Klaus Ostermann klaus...@gmail.com wrote: Is there any way in Racket to use (delimited) continuations to find out whether I'm evaluating an expression in the same evaluation context as before? Let's assume for a second that Racket had an ordinary call stack, and I could access that call stack as a first-order value. Then I could compare two call stacks and find out whether they denote the same evaluation context or not. But continuations are of course Racket procedures and eq? always yields #f. There is literature on defunctionalizing continuations, which would yield a first-order representation of a continuation, but of course I don't want to defunctionalize by hand, hence I wonder whether there is some way to do this with the batteries that are included in Racket. Presumably I could hack something by redefining the application macro, but that's not what I want. Any ideas? -- 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+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [racket-users] Comparing (delimited) continuations in Racket
For that you would have to write a (straightforward) compiler that transformed a fully expanded Racket program into another program (in that same language), inserting with-continuation-mark expressions around every subexpression. Run the transformed program. Then, at the point that you wish to compare with another, you can get the marks and compare them with another set you got earlier. This won't be a short function (as Racket is not a toy language), but it will be a straightforward one; you do not need to cps-convert or defunctionalize. We have few transformations along these lines implemented already that you may wish to look at. The most commonly used one is errortrace and it is what we use to get the precise stacktraces that DrRacket shows you. A similar transformation is used to do test coverage and another to get profiling information. The library is called errortrace and that search key in the docs should provide you with more information. hth, Robby On Fri, Aug 14, 2015 at 6:02 AM, Klaus Ostermann klaus...@gmail.com wrote: Robby, I think what I want is simple to say: If I have a Racket program and manually CPS-transform and then defunctionalize it, I would be able to compare and analyze continuations (and normal procedures, for that matter). I want to be able to do the same without CPS-transforming and defunctionalizing by hand, and I was hoping that there is some way to do that in terms of the continuation machinery in Racket. -- 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+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
