Re: Attractive examples of function-generating functions
That's a good call. +1 On Friday, August 10, 2012 8:36:25 AM UTC-4, Jonas wrote: How about the new reducers library: http://clojure.com/blog/2012/05/08/reducers-a-library-and-model-for-collection-processing.html http://clojure.com/blog/2012/05/15/anatomy-of-reducer.html Jonas On Wednesday, August 8, 2012 7:48:23 PM UTC+3, Brian Marick wrote: I'm looking for medium-scale examples of using function-generating functions. I'm doing it because examples like this: (def make-incrementer (fn [increment] (fn [x] (+ increment x ... or this: (def incish (partial map + [100 200 300])) ... show the mechanics, but I'm looking for examples that would resonate more with an object-oriented programmer. Such examples might be ones that close over a number of values (which looks more like an object), or generate multiple functions that all close over a shared value (which looks more like an object), or use closures to avoid the need to have some particular argument passed from function to function (which looks like the `this` in an instance method). Note: please put the flamethrower down. I'm not saying that looking like objects is the point of higher-order functions. I'll give full credit. - Brian Marick, Artisanal Labrador Contract programming in Ruby and Clojure Occasional consulting on Agile -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Attractive examples of function-generating functions
Maybe SICP's simulator of digital circuits will provide some inspiration. I know when I read this I was deeply awed by what HOFs can do. Maybe Clojure's zippers would be good too? On Wednesday, August 8, 2012 12:48:23 PM UTC-4, Brian Marick wrote: I'm looking for medium-scale examples of using function-generating functions. I'm doing it because examples like this: (def make-incrementer (fn [increment] (fn [x] (+ increment x ... or this: (def incish (partial map + [100 200 300])) ... show the mechanics, but I'm looking for examples that would resonate more with an object-oriented programmer. Such examples might be ones that close over a number of values (which looks more like an object), or generate multiple functions that all close over a shared value (which looks more like an object), or use closures to avoid the need to have some particular argument passed from function to function (which looks like the `this` in an instance method). Note: please put the flamethrower down. I'm not saying that looking like objects is the point of higher-order functions. I'll give full credit. - Brian Marick, Artisanal Labrador Contract programming in Ruby and Clojure Occasional consulting on Agile -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: A succinct reasonably fast sudoku solver in core.logic
On Tuesday, July 31, 2012 11:48:14 AM UTC-4, David Nolen wrote: A much shorter version using an everyo goal I just landed in master: http://gist.github.com/3217582 David That is awesome. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Alternate set literal syntax?
I think one of the strengths of clojure (over at least CL certainly) is
it's a warm and helpful community. Please, let's not poison that.
I think this response was not only not helpful, it was also, in some small
way, damaging to the community. Please don't reply to legitimate questions
in this manor.
On Saturday, March 24, 2012 8:17:57 AM UTC-4, Luc wrote:
I would suggest that we introduced some klingon characters in the language,
we could then satisfy all these alien desires to change a syntax that has
been
established 4 years ago.
We have a product driving an hospital here, your esthetic considerations
do not
fit in my deployment plan. This is not a toy language anymore... That era
is behind
us since Jan. 2009.
With nearly 5 versions out since 2009, I think that we can say that the
language has
reached some maturity at least regarding the syntax.
Now we are in the framework selection phase to meet greater challenges and
improving internals and platform availability.
I suggest you clone the source code and create your custom reader version.
Then you will be free to apply any change you may feel appropriate.
vaj HabHa''a' je 'uSDu'lIj joj
Luc
On Sat, Mar 24, 2012 at 1:28 AM, Sean Corfield seancorfi...@gmail.com
wrote:
On Fri, Mar 23, 2012 at 8:44 PM, Cedric Greevey cgree...@gmail.com
wrote:
#{foo bar baz} is somewhat ugly. It occurs to me that one could modify
the reader to additionally accept
{{foo bar baz}}
My concern is that {{1 2 3 4}5} is currently legal - a map with a map
as a key and 5 as the value. That means that the reader couldn't tell
if {{ introduced your set notation or the start of a nested map
without looking arbitrarily far ahead. And that problem gets worse if
you encounter {{{ or or... {{{ could introduce a nested map, a
map of your sets or one of your sets containing a map...
The other objections are fair enough -- matters of taste. But the
above is a technical problem with a simple fix: make one pass over the
source, converting it into a rudimentary AST whose nodes just look
like (thing thing thing), #(thing thing thing), [thing thing thing],
{thing thing thing}, and #{thing thing thing} (the file as a whole
be regarded as implicitly wrapped in (do ... )); then (assuming no
unbalanced delimiters) make a second pass doing the rest of the
reader's job. The second pass will see a {...} node with one direct
child that is also a {...} node in, and only in, the case of the
proposed set syntax. (It will also allow { {foo bar baz}} and
similarly as sets.)
As for the aesthetics, what I like about {{...}} is that the
delimiters are symmetrical, unlike #{...}, and it would allow one to
reserve use of the # mark to, mostly, closures, so # would stand out
more as typically indicating a lambda. (The #{...} syntax then remains
comparatively desirable in the specific case that the set literal is
being used as a predicate, as it's both a set and a lambda in that
context.)
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Re: SuperDevMode and SourceMaps for ClojureScript debugging
Any suggestions on how to get started on tackling that? On Tuesday, March 20, 2012 5:05:40 PM UTC-4, David Nolen wrote: On Tue, Mar 20, 2012 at 2:45 PM, Alexander Zolotko azolo...@gmail.comwrote: Ray Cromwell https://plus.google.com/u/1/110412141990454266397/posts, a Google employee, has recently announced new feature in Chrome Dev Tools: SuperDevMode and SourceMapshttps://plus.google.com/u/1/110412141990454266397/posts/Nvr6Se6eAPh. It helps to map source code written in programming language that targets JavaScript run-time (e.g. CoffeeScript) to resulting JavaScript code. Is it feasible to utilize it to debug ClojureScript in a browser? Please share your thoughts. Yep, looks promising and we definitely want to support it. Would love to see someone tackle this project. David -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Clojurescript One and Websockets
Hey Jay, Are there any plans to make a ring adapter for webbit? On Friday, March 2, 2012 6:40:27 AM UTC-5, Jay Fields wrote: clojure + web sockets, not using aleph: http://blog.jayfields.com/2011/02/clojure-web-socket-introduction.html On Mar 1, 2012, at 10:51 PM, Brian Rowe wrote: Hi, I'm thinking about using clojurescript one a starting point for a web game. I would like to use websockets as the primary communication mechanism between the browser and the server. As far as I know Zack Tellman's Aleph is the only clojure web server that supports websockets. Is this true? If so, are there any guides showing how to modify clojurescript one to use Aleph? If there are no guides, how much work would it take to modify cljs one to use aleph? Thanks! -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Clojurescript One and Websockets
Hi, I'm thinking about using clojurescript one a starting point for a web game. I would like to use websockets as the primary communication mechanism between the browser and the server. As far as I know Zack Tellman's Aleph is the only clojure web server that supports websockets. Is this true? If so, are there any guides showing how to modify clojurescript one to use Aleph? If there are no guides, how much work would it take to modify cljs one to use aleph? Thanks! -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Writing Android Apps in Clojure
Hi, I've seen that one of the biggest speed bumps on the path to delivering an Android application written in Clojure is app startup time. Has anyone tried writing the application's initial activity in pure java and delegating the loading of clojure to a service? Perhaps the service could send a broadcast when it is finished loading. At that point the activity could enable code paths that jump into Clojure code. I'm not completely familiar with how libraries get loaded and initialized in Dalvik. This may not even bee possible, or perhaps it would require the service to be an out of process service. Anyhow, I would be interested to know if anyone has tried this. Thanks! -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
