[racket-users] making standalone application

[sagar tripathy]

i am trying to make a software with Racket for generic use . Or ,you can say a 
complete setup for system without "DRracket" or "minimal Racket" . I do not 
know the way to achieve it.

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Re: [racket-users] Abridged summary of racket-users@googlegroups.com - 16 updates in 7 topics

[sagar tripathy]

is it possible to create a 'os' using 'racket'

On Wed, Jan 20, 2016 at 12:57 PM,  wrote:

> racket-users@googlegroups.com
> 
>  Google
> Groups
> 
> 
> Today's topic summary
> View all topics
> 
>
>- Code critique request: data/fetch, proc for walking hashes/lists
><#-239076200_group_thread_0> - 1 Update
>- backwards-incompatible change to in-vector
><#-239076200_group_thread_1> - 7 Updates
>- Using the web server without continuations?
><#-239076200_group_thread_2> - 3 Updates
>- Top Level Variables or List of Shared Libraries
><#-239076200_group_thread_3> - 2 Updates
>- 1st Call for Contributions for SPLASH'16: OOPSLA, Onward!,
>Workshops, DLS, SLE, GPCE <#-239076200_group_thread_4> - 1 Update
>- Store value with unsupported type in Postgres?
><#-239076200_group_thread_5> - 1 Update
>- Implement Topological sorting in HtDP-y way?
><#-239076200_group_thread_6> - 1 Update
>
> Code critique request: data/fetch, proc for walking hashes/lists
> 
> "David K. Storrs" : Jan 19 10:38PM -0800
>
> I apologize for the long ping time on this -- for whatever reason I didn't
> get any of the replies sent to my email and I thought no one had responded.
>
> JCG, Jack, thank you very much for taking the ...more
> 
> Back to top <#-239076200_digest_top>
> backwards-incompatible change to in-vector
> 
> Stephen Chang : Jan 19 01:19PM -0500
>
> I'm fixing pr 15227 but I would like to do so in a backwards-incompatible
> way.
>
> Right now an out-of-range index is sometimes allowed as an argument to
> in-vector, leading to the bug:
>
> $ racket ...more
> 
> Vincent St-Amour : Jan 19 01:06PM -0600
>
> Would it be possible to special-case `(in-vector (vector) 0 0)`
> directly, and fix the bug while keeping backwards compatibility?
>
> Vincent
>
>
> On Tue, 19 Jan 2016 12:19:12 -0600, ...more
> 
> Stephen Chang : Jan 19 02:16PM -0500
>
> Yes, or course it's possible, at the expense of more unreadable code.
>
> But the zero special case doesnt make sense. And is inconsistent with
> other out-of-range cases, eg (in-vector (vector) 1 1) ...more
> 
> Robby Findler : Jan 19 02:05PM -0600
>
> I think you should not change this backwards compatibility unless you
> really know it isn't used (and even then it is hard to know such
> things).
>
> Robby
>
> ...more
> 
> Stephen Chang : Jan 19 03:51PM -0500
>
> > I think you should not change this backwards compatibility unless you
> > really know it isn't used (and even then it is hard to know such
> > things).
>
> Well I still think these programs would be ...more
> 
> Robby Findler : Jan 19 02:55PM -0600
>
> > > things).
>
> > Well I still think these programs would be relying on a bug, since
> > they are referencing a non-existent vector element.
>
>
> Just to be clear, you cannot know that. ...more
> 
> Gustavo Massaccesi : Jan 20 12:01AM -0300
>
> I couldn't write an example that is not obvious, but this programs
> looks ok to me:
>
> ;---
> #lang racket
> (define (display-vector v)
> (for ([x (in-vector v 0 (vector-length v))]) ...more
> 
> Back to top <#-239076200_digest_top>
> Using the web server without continuations?
> 
> Alexis King : Jan 19 04:07PM -0800
>
> I’ve been using the Racket web server, and I’m very pleased with how
> easy it’s been to get a simple working application. However, so far, I
> haven’t been using 

Re: [racket-users] Abridged summary of racket-users@googlegroups.com - 19 updates in 7 topics

[sagar tripathy]

During adding a tech-pack of type #lang plai , Error is showing what is the
right process to overcome it.

prog is like :

#lang plai



On Thu, Jan 7, 2016 at 1:02 PM,  wrote:

> racket-users@googlegroups.com
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>- HTTPS problem with net/url <#1521b003f2886e38_group_thread_0> - 3
>Updates
>- Typed/Untyped cost reduction and experience
><#1521b003f2886e38_group_thread_1> - 6 Updates
>- using a different "scribble.tex" <#1521b003f2886e38_group_thread_2>
>- 3 Updates
>- hot reloading code and html templates for web app development
><#1521b003f2886e38_group_thread_3> - 3 Updates
>- Potential Contract Profiler UI Change
><#1521b003f2886e38_group_thread_4> - 1 Update
>- typed compilation option again <#1521b003f2886e38_group_thread_5> - 2
>Updates
>- Cycle in loading. Units, (sub)modules, files...
><#1521b003f2886e38_group_thread_6> - 1 Update
>
> HTTPS problem with net/url
> 
> David Storrs : Jan 06 01:50PM -0800
>
> Hi folks,
>
> tl;dr: How do I make HTTPS calls from within Racket?
>
> Background:
>
> I co-write a play-by-post RPG ( ...more
> 
> Matthew Flatt : Jan 06 03:15PM -0700
>
> Racket is using the too-old version of "libssl.dylib" that is provided
> by the OS. The too-old version doesn't work with some servers.
>
> For that server, I get the same error in v6.3. ...more
> 
> David Storrs : Jan 06 04:37PM -0800
>
> Wow. You're fantastic Matthew, thank you.
>
> > Thanks for delaying this question until the first day that I know the
> answer!
>
> No problem. I'm nice like that. ;>
>
> On Wed, Jan 6, 2016 at 2:15 PM, ...more
> 
> Back to top <#1521b003f2886e38_digest_top>
> Typed/Untyped cost reduction and experience
> 
> Matthias Felleisen : Jan 06 09:33AM -0500
>
>
> > * Or maybe it means adding types proactively is just not a recommended
> way to go in general, and types should only be added when the code base
> reaches certain trigger conditions?
> ...more
> 
> Matthias Felleisen : Jan 06 09:34AM -0500
>
>
> >> I don't understand this bullet. Bullet 1 says your code is now
> completely typed. Our experience is that completely typed versions are
> about as fast and on many occasions (eg., numeric) faster ...more
> 
> JCG : Jan 06 11:01AM -0800
>
> > I will say this as the first Racketeer and Typed Racketeer: if you just
> want to program in an explicitly-statically typed language (possibly with
> inference), you might wish to broaden your scope of ...more
> 
> Sam Tobin-Hochstadt : Jan 06 02:13PM -0500
>
>
> > So, two things come to mind, Racket and SBCL because I've used them
> before, and the ML family - Haskell, OCaml, and Scala. Having tried Scala,
> I like the language but the associated ...more
> 
> Emmanuel Oga : Jan 06 11:52AM -0800
>
> On Wednesday, January 6, 2016 at 11:01:56 AM UTC-8, JCG wrote:
> > 5) I've had enough uncaught flaws in Python that I'm now convinced that
> I need types.
> > 6) It needs pattern matching, otherwise I'm ...more
> 
> Matthias Felleisen : Jan 06 06:21PM -0500
>
> > 2) Lightweight threads
> > 3) Reasonable ability to use multiple cores safely.
> > 4) Reliable environment generating reliable JavaScript
>
>
> Hmph.
>
>
>
> > So, two things come to mind, Racket and ...more
> 
> Back to top <#1521b003f2886e38_digest_top>
> using a different "scribble.tex"
> 

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
> 
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> Groups
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> Today's topic summary
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>
>- 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 

[racket-users] adding functionality to draw.ss (draw tech. pack)

[sagar tripathy]

I am wondering how to add functionality of htdp/image to draw.ss

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[racket-users] start to contribute to racket

[sagar tripathy]

I started racket before six month. After knowing some part I want to do some 
useful thing in racket.
Anyone Please help me.

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