[ANN] clamda - reducible Java Streams
Hi folks, /clamda/ [1], is a little library for working with Java Streams from Clojure, and to a lesser extend, for working with Clojure seqs from Java. Parallel streams are fully supported, but there are some gotchas (described in the README). Convenience helper for constructing Lamdas on-demand from plain Clojure functions, exists as well. This library was motivated by the memory-mapped parallel stream returned by `Files.lines()` in JDK9. We can now take /full/ advantage of it (and other Streams like it) from Clojure. Enjoy & feedback is always welcome ;) Kind regards, Dimitris [1]: https://github.com/jimpil/clamda -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [ANN] clamda - reducible Java Streams
Ignore my previous post please - I will try to get clamda 0.1.2 removed from clojars as it is misspelled (:facepalm:). There will be a new email eventually. Apologies for the noise... Kind regards, Dimitris On 08/08/18 22:01, dimitris wrote: Hi folks, /clamda/ [1], is a little library for working with Java Streams from Clojure, and to a lesser extend, for working with Clojure seqs from Java. Parallel streams are fully supported, but there are some gotchas (described in the README). Convenience helper for constructing Lamdas on-demand from plain Clojure functions, exists as well. This library was motivated by the memory-mapped parallel stream returned by `Files.lines()` in JDK9. We can now take /full/ advantage of it (and other Streams like it) from Clojure. Enjoy & feedback is always welcome ;) Kind regards, Dimitris [1]: https://github.com/jimpil/clamda -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: How to escape a space in a keyword?
Reviving an old thread. I have a case where I convert ION to Clojure, and ION has a SYMBOL type, which can be any UTF-8 character, including spaces. I though of making them keywords in Clojure, since they serve the same purpose, to be used as identifiers. I can create such keyword with the keyword function, but they don't serialize to EDN and back using the default printer and reader. I'm thinking of extending the printer like tbc++ says so keywords are printed as (keyword "string") instead. Does anyone believe there is something that's going to bite me later if I do this? On Tuesday, 13 March 2012 00:14:48 UTC-7, Andy Fingerhut wrote: > > Ah, my senior moment was not noticing the invalid example use of symbol in > the second example, which was passing strings of decimal digits to symbol. > I went ahead and deleted that one. > > Thanks, > Andy > > On Mar 13, 2012, at 12:04 AM, Andy Fingerhut wrote: > > Which one? > > (symbol 'foo) > > (symbol "foo") > > (symbol "clojure.core" "foo") > > I don't see it, but I'm probably having a senior moment. > > clojuredocs.org are editable to anyone willing to create a free account, > by the way. I'm nobody special there. > > Andy > > On Mar 12, 2012, at 11:53 PM, Meikel Brandmeyer (kotarak) wrote: > > Hi, > > Am Dienstag, 13. März 2012 07:46:58 UTC+1 schrieb Andy Fingerhut: >> >> >> http://clojuredocs.org/clojure_core/clojure.core/symbol >> >> > And right below is an example of invalid usage. > > Sincerely > Meikel > > > -- > You received this message because you are subscribed to the Google > Groups "Clojure" group. > To post to this group, send email to clo...@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+u...@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 --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Can someone explains the difference between print-method and print-dup once and for all?
Can someone explains the difference between print-method and print-dup once and for all? Regards -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: How to escape a space in a keyword?
If you want to serialize the data to EDN and back, and print them out into the EDN file as (keyword "arbitrary-char-sequence"), then using the normal Clojure functions for reading the EDN data in will leave those expressions as the lists (keyword "arbitrary-char-sequence"). Of course you could write a simple function that walks the data structure looking for such lists and replacing them with the corresponding keywords. However, that breaks round-tripability of the data if you ever have an occurrence of such a list in your original data before printing it to EDN. If you believe, or can somehow ensure, that will never happen, seems workable to me. Using a custom data-reader like #my.namespace/keyword "arbitrary-char-sequence" with a globally unique namespace that you own would be less susceptible to such aliasing problems. Andy On Wed, Aug 8, 2018 at 4:55 PM Didier wrote: > Reviving an old thread. I have a case where I convert ION to Clojure, and > ION has a SYMBOL type, which can be any UTF-8 character, including spaces. > I though of making them keywords in Clojure, since they serve the same > purpose, to be used as identifiers. I can create such keyword with the > keyword function, but they don't serialize to EDN and back using the > default printer and reader. > > I'm thinking of extending the printer like tbc++ says so keywords are > printed as (keyword "string") instead. Does anyone believe there is > something that's going to bite me later if I do this? > > On Tuesday, 13 March 2012 00:14:48 UTC-7, Andy Fingerhut wrote: >> >> Ah, my senior moment was not noticing the invalid example use of symbol >> in the second example, which was passing strings of decimal digits to >> symbol. I went ahead and deleted that one. >> >> Thanks, >> Andy >> >> On Mar 13, 2012, at 12:04 AM, Andy Fingerhut wrote: >> >> Which one? >> >> (symbol 'foo) >> >> (symbol "foo") >> >> (symbol "clojure.core" "foo") >> >> I don't see it, but I'm probably having a senior moment. >> >> clojuredocs.org are editable to anyone willing to create a free account, >> by the way. I'm nobody special there. >> >> Andy >> >> On Mar 12, 2012, at 11:53 PM, Meikel Brandmeyer (kotarak) wrote: >> >> Hi, >> >> Am Dienstag, 13. März 2012 07:46:58 UTC+1 schrieb Andy Fingerhut: >>> >>> >>> http://clojuredocs.org/clojure_core/clojure.core/symbol >>> >>> >> And right below is an example of invalid usage. >> >> Sincerely >> Meikel >> >> >> -- >> You received this message because you are subscribed to the Google >> Groups "Clojure" group. >> To post to this group, send email to clo...@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+u...@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 > --- > You received this message because you are subscribed to the Google Groups > "Clojure" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to clojure+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 "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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: How to escape a space in a keyword?
Why are you fighting so hard to make keywords with spaces? If you need things with spaces, use strings. -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Can someone explains the difference between print-method and print-dup once and for all?
This is glossing over some details, but print-method is for “human” printing (print, println). print-dup is for printing readable data (pr, prn). Often these are the same. Strings are a good example where they aren’t. -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[ANN] hystrix-dynamicvar -- Clojure dynamic var binding through hystrix command
https://github.com/Netflix/Hystrix does its job quiet good. However, its thread-style isolation makes dynamic var not work any more. hystrix-dynamicvar to the rescue. More refer: - https://github.com/jiacai2050/hystrix-dynamicvar - https://github.com/Netflix/Hystrix/wiki/Plugins#concurrencystrategy -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: How to escape a space in a keyword?
Thanks Andy, ya I actually realized this, I'm using a custom reader literal now instead. > Why are you fighting so hard to make keywords with spaces? If you need things > with spaces, use strings. Why have keywords at all then? What does a space add that somehow negates the premise of keywords? I see keywords over strings give you interning, namespaces, and the semantic that this value serves as an identifier. What's wrong with having that and a space as well? Also, to be more specific to my use case. If I convert ION symbols to Clojure strings, I've lost information, and can no longer convert back to the same ION. I need to do ION -> EDN -> ION in a lossless way. Piggybacking on keywords seemed easiest. -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Can someone explains the difference between print-method and print-dup once and for all?
Thanks, but I think I need the details. It seems pr, prn and company default to using print-method, and print-method implementations check for *print-readably*. So how exactly would print-dup differ? I ask specifically in the context of serializing Clojure to EDN and back. Would it be best to do so with print-dup true and print-readably true? What would be the expected pr-str settings? -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: How to escape a space in a keyword?
I was wondering about the rationale for the unreadable keywords a while a ago. Weavejester pointed me to https://clojure.org/guides/faq#unreadable_keywords and https://dev.clojure.org/jira/browse/CLJ-2309 Erik. -- i farta > 9. aug. 2018 kl. 06:48 skrev Didier : > > Thanks Andy, ya I actually realized this, I'm using a custom reader literal > now instead. > >> Why are you fighting so hard to make keywords with spaces? If you need >> things with spaces, use strings. > > Why have keywords at all then? What does a space add that somehow negates the > premise of keywords? > > I see keywords over strings give you interning, namespaces, and the semantic > that this value serves as an identifier. What's wrong with having that and a > space as well? > > Also, to be more specific to my use case. If I convert ION symbols to Clojure > strings, I've lost information, and can no longer convert back to the same > ION. > > I need to do ION -> EDN -> ION in a lossless way. Piggybacking on keywords > seemed easiest. > > -- > 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 unsubscribe from this group and stop receiving emails from it, send an > email to clojure+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 "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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.