Re: [racket-users] Abridged summary of racket-users@googlegroups.com - 17 updates in 5 topics

[Matthias Felleisen]

htdp/image (I hope you mean 2htdp/image, both exist) is not a good platform for 
creating GUIs. Consider using Racket’s underlying GUI library. 




> On Dec 23, 2015, at 12:23 PM, sagar tripathy  wrote:
> 
> I am trying to make a gui for htdp/image packet with interactive windows but 
> the documentation for windows is bit fuzzy. I do not know where to start.
> 
> On Wed, Dec 23, 2015 at 1:06 PM,  > wrote:
> racket-users@googlegroups.com 
> 
> Google Groups 
> 
>
> 
>
> Today's topic summary  <>
> View all topics 
> 
> listing the identifiers from "all-defined-out" and "all-from-out" 
>  - 2 Updates
> Can scribble/lp2 typeset comments within chunks? 
>  - 2 Updates
> Confused about the difference between the REPL and the toplevel. 
>  - 5 Updates
> backwards incompatible change to redex: does it break your models? 
>  - 1 Update
> DrRacket crashes on simple pict3d script 
>  - 7 Updates
>  <>listing the identifiers from "all-defined-out" and "all-from-out"  
> 
>   
> Asumu Takikawa >: Dec 22 05:21PM 
> -0500 
> 
> On 2015-12-18 17:27:54 -0800, Sanjeev Sharma wrote:
>  
> > all-defined-out 
> > all-from-out
>  
> > I can't yet make sense of regprov.rkt 
>  
> Do you mean how can you tell what's exported given a particular ...more 
> 
>  
> Benjamin Greenman  >: Dec 22 09:03PM -0500 
> 
> You might also like `filtered-out` from `racket/provide` [1]. The code
> sample below prints two identifiers (at compile-time):
>  
> a:x
>  
> y
>  
>  
> [1] ...more 
> 
>  
> Back to top  <>Can scribble/lp2 
> typeset comments within chunks?  
> 
>   
> Asumu Takikawa >: Dec 22 05:45PM 
> -0500 
> 
> On 2015-12-18 12:20:13 -0800, Matthew Butterick wrote:
> > Third try: also tried scribble/comment-reader [2] but this doesn't work
> > (apparently because `racketblock` knows about `code:comment` but ...more 
> > 
> >  
> Matthew Butterick >: Dec 22 06:00PM 
> -0800 
> 
> I'm a scribble/lp2 noob for sure, but why not eliminate the need for 
> `code:comment` within a `chunk`?
>  
> Because I find this curious: when the `chunk` is typeset in documentation 
> mode, scribble/lp2 is...more 
> 
>  
> Back to top  <>Confused about the 
> difference between the REPL and the toplevel.  
> 
>   
> Matthew Flatt >: Dec 22 
> 06:37AM -0700 
> 
> Expanding a form triggers compile-time evaluation in the sense of
> running macros. Currently, though, compilation treats changing the set
> of bindings at the top level as a kind of run-time effect (to ...more 
> 
>  
> Matthew Flatt >: Dec 22 
> 06:38AM -0700 
> 
> At Mon, 21 Dec 2015 21:30:45 -0700, Leif Andersen wrote:
> > #'5)
> > foo))
>  
> > I get back the compiled object. 
>  
> The compiled object ends with a reference to a ...more 
> 
>  
> Matthew Flatt >: Dec 22 
> 06:46AM -0700 
> 
> I think Robby was confused by your example (which is understandable).
>  
> The `expand` function does not splice any differently than `compile`,
> so `compile` behaves the same as `expand` in your ...more 
> 
>  
> Robby Findler  >: Dec 22 07:54AM -0600 
> 
> Oh right. Sorry for the confusion!
>  
> Robby
>  
> ...more 
> 

Re: [racket-users] Abridged summary of racket-users@googlegroups.com - 17 updates in 5 topics

[sagar tripathy]

I am trying to make a gui for htdp/image packet with interactive windows
but the documentation for windows is bit fuzzy. I do not know where to
start.

On Wed, Dec 23, 2015 at 1:06 PM,  wrote:

> racket-users@googlegroups.com
> 
>  Google
> Groups
> 
> 
> Today's topic summary
> View all topics
> 
>
>- listing the identifiers from "all-defined-out" and "all-from-out"
><#151cdc509fdab055_group_thread_0> - 2 Updates
>- Can scribble/lp2 typeset comments within chunks?
><#151cdc509fdab055_group_thread_1> - 2 Updates
>- Confused about the difference between the REPL and the toplevel.
><#151cdc509fdab055_group_thread_2> - 5 Updates
>- backwards incompatible change to redex: does it break your models?
><#151cdc509fdab055_group_thread_3> - 1 Update
>- DrRacket crashes on simple pict3d script
><#151cdc509fdab055_group_thread_4> - 7 Updates
>
> listing the identifiers from "all-defined-out" and "all-from-out"
> 
> Asumu Takikawa : Dec 22 05:21PM -0500
>
> On 2015-12-18 17:27:54 -0800, Sanjeev Sharma wrote:
>
> > all-defined-out
> > all-from-out
>
> > I can't yet make sense of regprov.rkt
>
> Do you mean how can you tell what's exported given a particular ...more
> 
> Benjamin Greenman : Dec 22 09:03PM -0500
>
> You might also like `filtered-out` from `racket/provide` [1]. The code
> sample below prints two identifiers (at compile-time):
>
> a:x
>
> y
>
>
> [1] ...more
> 
> Back to top <#151cdc509fdab055_digest_top>
> Can scribble/lp2 typeset comments within chunks?
> 
> Asumu Takikawa : Dec 22 05:45PM -0500
>
> On 2015-12-18 12:20:13 -0800, Matthew Butterick wrote:
> > Third try: also tried scribble/comment-reader [2] but this doesn't work
> > (apparently because `racketblock` knows about `code:comment` but ...more
> 
> Matthew Butterick : Dec 22 06:00PM -0800
>
> I'm a scribble/lp2 noob for sure, but why not eliminate the need for
> `code:comment` within a `chunk`?
>
> Because I find this curious: when the `chunk` is typeset in documentation
> mode, scribble/lp2 is ...more
> 
> Back to top <#151cdc509fdab055_digest_top>
> Confused about the difference between the REPL and the toplevel.
> 
> Matthew Flatt : Dec 22 06:37AM -0700
>
> Expanding a form triggers compile-time evaluation in the sense of
> running macros. Currently, though, compilation treats changing the set
> of bindings at the top level as a kind of run-time effect (to ...more
> 
> Matthew Flatt : Dec 22 06:38AM -0700
>
> At Mon, 21 Dec 2015 21:30:45 -0700, Leif Andersen wrote:
> > #'5)
> > foo))
>
> > I get back the compiled object.
>
> The compiled object ends with a reference to a ...more
> 
> Matthew Flatt : Dec 22 06:46AM -0700
>
> I think Robby was confused by your example (which is understandable).
>
> The `expand` function does not splice any differently than `compile`,
> so `compile` behaves the same as `expand` in your ...more
> 
> Robby Findler : Dec 22 07:54AM -0600
>
> Oh right. Sorry for the confusion!
>
> Robby
>
> ...more
> 
> Leif Andersen : Dec 22 06:57PM -0700
>
> Okay, thank you for the explanation.
>
> I totally see what you mean now by the top level being hopeless. (Or
> at least I think I do.) It seems there is no way to get a meaning that
> ...more
> 
> Back to top <#151cdc509fdab055_digest_top>
> backwards incompatible change to