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344 discussions

[pro] Default safety level and specialized arrays
by Edi Weitz 12 Mar '15

12 Mar '15

Hi everybody, After rummaging around in the HyperSpec and various implementation manuals I came to the following conclusion: 1. The standard doesn't prescribe such thing as a default safety level for CL implementations and there's no portable way to figure out the safety level of the global environment. (And the same holds for other optimize qualities.) The closest I could find in the CLHS is 3.3.1 where they talk about an "implementation that always processes code as if safety were high." From this I conclude that implementations are allowed NOT to do this or otherwise there would be no need to mention it. The LispWorks manual for example describes the defaults in section 9.5 about compiler control, but for SBCL I couldn't find them in the manual. 2. The standard doesn't prescribe what should happen if you try to write an element of a wrong type to a specialized array, even in safe code. Both LispWorks and SBCL will by default complain in this case but my understanding is that you can't rely on this in portable code. So, my question is whether the above is correct or if I missed something? Thanks, Edi.

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[pro] RavenPack Lisp Job
by Andrew Lawson 23 Feb '15

23 Feb '15

Good afternoon all We at RavenPack in Marbella, Spain, are searching for a Common Lisp developer. The webpage linked below goes into more detail. I'd like to encourage anyone with an interest to have a look. We are a growing company with an expanding development group and offer the opportunity to work with interesting technologies and a great group of people. Applicants must already be able to work legally in the E.U. The job is situated in our Marbella office, no remote work is available. We are looking for someone interested in building a career with us, not a short-term contractor. http://www.ravenpack.com/company/careers/ Andrew -- Andrew Lawson Lisp Development Manager RavenPack International S.L. alawson(a)ravenpack.com

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[pro] [Final CfP] ELS 2015 submission deadline extended to March 1st
by Didier Verna 22 Feb '15

22 Feb '15

ELS'15 - 8th European Lisp Symposium Goldsmiths College, London, UK April 20-21, 2015 http://www.european-lisp-symposium.org/ Sponsored by EPITA, Franz Inc. and Lispworks Ltd. Recent news: - *** Submission deadline extended to March 1st *** - Invited speakers announced: Zach Beane, Bodil Stokke, Martin Cracauer - Registration to open early March The purpose of the European Lisp Symposium is to provide a forum for the discussion and dissemination of all aspects of design, implementation and application of any of the Lisp and Lisp-inspired dialects, including Common Lisp, Scheme, Emacs Lisp, AutoLisp, ISLISP, Dylan, Clojure, ACL2, ECMAScript, Racket, SKILL, Hop and so on. We encourage everyone interested in Lisp to participate. The 8th European Lisp Symposium invites high quality papers about novel research results, insights and lessons learned from practical applications and educational perspectives. We also encourage submissions about known ideas as long as they are presented in a new setting and/or in a highly elegant way. Topics include but are not limited to: - Context-, aspect-, domain-oriented and generative programming - Macro-, reflective-, meta- and/or rule-based development approaches - Language design and implementation - Language integration, inter-operation and deployment - Development methodologies, support and environments - Educational approaches and perspectives - Experience reports and case studies We invite submissions in the following forms: Papers: Technical papers of up to 8 pages that describe original results or explain known ideas in new and elegant ways. Demonstrations: Abstracts of up to 2 pages for demonstrations of tools, libraries, and applications. Tutorials: Abstracts of up to 4 pages for in-depth presentations about topics of special interest for at least 90 minutes and up to 180 minutes. The symposium will also provide slots for lightning talks, to be registered on-site every day. All submissions should be formatted following the ACM SIGS guidelines and include ACM classification categories and terms. For more information on the submission guidelines and the ACM keywords, see: http://www.acm.org/sigs/publications/proceedings-templates and http://www.acm.org/about/class/1998. Important dates: - 01 Mar 2015: Submission deadline *** EXTENDED *** - 15 Mar 2015: Notification of acceptance - 29 Mar 2015: Early registration deadline - 05 Apr 2015: Final papers - 20-21 Apr 2015: Symposium Programme chair: Julian Padget, University of Bath, UK Local chair: Christophe Rhodes, Goldsmiths, University of London, UK Programme committee: Sacha Chua — Toronto, Canada Edmund Weitz — University of Applied Scicences, Hamburg, Germany Rainer Joswig — Hamburg, Germany Henry Lieberman — MIT, USA Matthew Flatt — University of Utah, USA Christian Queinnec — University Pierre et Marie Curie, Paris 6, France Giuseppe Attardi — University of Pisa, Italy Marc Feeley — University of Montreal, Canada Stephen Eglen — University of Cambridge, UK Robert Strandh — University of Bordeaux, France Nick Levine — RavenPack, Spain Search Keywords: #els2015, ELS 2015, ELS '15, European Lisp Symposium 2015, European Lisp Symposium '15, 8th ELS, 8th European Lisp Symposium, European Lisp Conference 2015, European Lisp Conference '15 -- My new Jazz CD entitled "Roots and Leaves" is out! Check it out: http://didierverna.com/records/roots-and-leaves.php Lisp, Jazz, Aïkido: http://www.didierverna.info

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[pro] Lexer wanted
by Frank Huttner 15 Feb '15

15 Feb '15

buffalo is an LALR(1) parser generator in pure Lisp that performs roughly on par with its large cousin on the "torture" tests from the GNU Bison test suite (https://github.com/fhuttner/buffalo-testsuite). What I find really missing is an equivalent, open-sourced lexer; is there such a project?

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[pro] [2nd CfP] European Lisp Symposium 2015, April 20-21, London
by Didier Verna 24 Jan '15

24 Jan '15

ELS'15 - 8th European Lisp Symposium Goldsmiths College, London, UK April 20-21, 2015 http://www.european-lisp-symposium.org/ Sponsored by EPITA, Franz Inc. and Lispworks Ltd. Recent news: - Submission deadline in less than a month now! - Programme committee has been announced (see below) - Venue information now available on the web site The purpose of the European Lisp Symposium is to provide a forum for the discussion and dissemination of all aspects of design, implementation and application of any of the Lisp and Lisp-inspired dialects, including Common Lisp, Scheme, Emacs Lisp, AutoLisp, ISLISP, Dylan, Clojure, ACL2, ECMAScript, Racket, SKILL, Hop and so on. We encourage everyone interested in Lisp to participate. The 8th European Lisp Symposium invites high quality papers about novel research results, insights and lessons learned from practical applications and educational perspectives. We also encourage submissions about known ideas as long as they are presented in a new setting and/or in a highly elegant way. Topics include but are not limited to: - Context-, aspect-, domain-oriented and generative programming - Macro-, reflective-, meta- and/or rule-based development approaches - Language design and implementation - Language integration, inter-operation and deployment - Development methodologies, support and environments - Educational approaches and perspectives - Experience reports and case studies We invite submissions in the following forms: Papers: Technical papers of up to 8 pages that describe original results or explain known ideas in new and elegant ways. Demonstrations: Abstracts of up to 2 pages for demonstrations of tools, libraries, and applications. Tutorials: Abstracts of up to 4 pages for in-depth presentations about topics of special interest for at least 90 minutes and up to 180 minutes. The symposium will also provide slots for lightning talks, to be registered on-site every day. All submissions should be formatted following the ACM SIGS guidelines and include ACM classification categories and terms. For more information on the submission guidelines and the ACM keywords, see: http://www.acm.org/sigs/publications/proceedings-templates and http://www.acm.org/about/class/1998. Important dates: - 22 Feb 2015: Submission deadline - 15 Mar 2015: Notification of acceptance - 29 Mar 2015: Early registration deadline - 05 Apr 2015: Final papers - 20-21 Apr 2015: Symposium Programme chair: Julian Padget, University of Bath, UK Local chair: Christophe Rhodes, Goldsmiths, University of London, UK Programme committee: Sacha Chua — Toronto, Canada Edmund Weitz — University of Applied Scicences, Hamburg, Germany Rainer Joswig — Hamburg, Germany Henry Lieberman — MIT, USA Matthew Flatt — University of Utah, USA Christian Queinnec — University Pierre et Marie Curie, Paris 6, France Giuseppe Attardi — University of Pisa, Italy Marc Feeley — University of Montreal, Canada Stephen Eglen — University of Cambridge, UK Robert Strandh — University of Bordeaux, France Nick Levine — RavenPack, Spain Search Keywords: #els2015, ELS 2015, ELS '15, European Lisp Symposium 2015, European Lisp Symposium '15, 8th ELS, 8th European Lisp Symposium, European Lisp Conference 2015, European Lisp Conference '15 -- My new Jazz CD entitled "Roots and Leaves" is out! Check it out: http://didierverna.com/records/roots-and-leaves.php Lisp, Jazz, Aïkido: http://www.didierverna.info

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[pro] [MOP] Does intern-eql-specializer serve any real purpose?
by Jean-Claude Beaudoin 27 Dec '14

27 Dec '14

Hello CL Pros, Lately I have been improving the MOPishness of MKCL and that brought me in contact with the specification of intern-eql-specializer in AMOP. The EQ requirement on its returned value seem to me to dictate a hash-table implementation (PCL and its derivatives all seem to do just that). The problem I see with this is that it will be a "for ever growing" hash-table with not upper bound in sight. And the "purpose" of such a mandatory built-in memory leak also completely escapes me. Could any of you share some insight on this question, please? Thank you, JCB

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[pro] [CfP] ELS 2015, 8th European Lisp Symposium, Apr. 20-21, London
by Didier Verna 05 Dec '14

05 Dec '14

ELS'15 - 8th European Lisp Symposium Goldsmiths College, London, UK April 20-21, 2015 http://www.european-lisp-symposium.org/ Sponsored by EPITA, Franz Inc. and Lispworks Ltd. The purpose of the European Lisp Symposium is to provide a forum for the discussion and dissemination of all aspects of design, implementation and application of any of the Lisp and Lisp-inspired dialects, including Common Lisp, Scheme, Emacs Lisp, AutoLisp, ISLISP, Dylan, Clojure, ACL2, ECMAScript, Racket, SKILL, Hop and so on. We encourage everyone interested in Lisp to participate. The 8th European Lisp Symposium invites high quality papers about novel research results, insights and lessons learned from practical applications and educational perspectives. We also encourage submissions about known ideas as long as they are presented in a new setting and/or in a highly elegant way. Topics include but are not limited to: - Context-, aspect-, domain-oriented and generative programming - Macro-, reflective-, meta- and/or rule-based development approaches - Language design and implementation - Language integration, inter-operation and deployment - Development methodologies, support and environments - Educational approaches and perspectives - Experience reports and case studies We invite submissions in the following forms: Papers: Technical papers of up to 8 pages that describe original results or explain known ideas in new and elegant ways. Demonstrations: Abstracts of up to 2 pages for demonstrations of tools, libraries, and applications. Tutorials: Abstracts of up to 4 pages for in-depth presentations about topics of special interest for at least 90 minutes and up to 180 minutes. The symposium will also provide slots for lightning talks, to be registered on-site every day. All submissions should be formatted following the ACM SIGS guidelines and include ACM classification categories and terms. For more information on the submission guidelines and the ACM keywords, see: http://www.acm.org/sigs/publications/proceedings-templates and http://www.acm.org/about/class/1998. Important dates: - 22 Feb 2015: Submission deadline - 15 Mar 2015: Notification of acceptance - 29 Mar 2015: Early registration deadline - 05 Apr 2015: Final papers - 20-21 Apr 2015: Symposium Programme chair: Julian Padget, University of Bath, UK Local chair: Christophe Rhodes, Goldsmiths, University of London, UK Programme committee: To be announced Search Keywords: #els2015, ELS 2015, ELS '15, European Lisp Symposium 2015, European Lisp Symposium '15, 8th ELS, 8th European Lisp Symposium, European Lisp Conference 2015, European Lisp Conference '15 -- My new Jazz CD entitled "Roots and Leaves" is out! Check it out: http://didierverna.com/records/roots-and-leaves.php Lisp, Jazz, Aïkido: http://www.didierverna.info

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[pro] CL-PDF on ACL 9.0 - using Quicklisp works
by Martin Mallinson 25 Aug '14

25 Aug '14

Ah - success! I could not get asdf to work - see note below since it may be helpful to understand why - but quicklist just worked ... (thanks for the tip Nick) *ASDF Notes (th**is is all ACL 9.0 64bit)* sch(68): (asdf:asdf-version) "3.0.2.3" sch(74): (asdf/operate:load-system "cl-pdf") Error: Component "cl-pdf" not found [condition type: missing-component] sch(75): (setf asdf:*central-registry* '(*default-pathname-defaults*)) (*default-pathname-defaults*) sch(76): (asdf/operate:load-system "cl-pdf") ; Loading c:\LISP\CL-pdf\trunk\cl-pdf.asd Error: Component :iterate not found, required by #<system "cl-pdf"> [condition type: missing-dependency] *QUICKLISP notes* sch(78): (ql:quickload :cl-pdf) To load "cl-pdf": Load 1 ASDF system: cl-pdf ; Loading "cl-pdf" To load "iterate": Install 1 Quicklisp release: iterate ; Fetching #<url "http://beta.quicklisp.org/archive/iterate/2013-01-28/iterate-20130128-darcs…"> ; 326.07KB ================================================== 333,896 bytes in 1.85 seconds (176.73KB/sec) ; Loading "iterate" [package iterate].......................... ; Loading "cl-pdf" To load "zpb-ttf": Install 1 Quicklisp release: zpb-ttf ; Fetching #<url "http://beta.quicklisp.org/archive/zpb-ttf/2013-07-20/zpb-ttf-1.0.3.tgz"> ; 43.82KB ================================================== 44,869 bytes in 0.13 seconds (327.00KB/sec) ; Loading "zpb-ttf" [package zpb-ttf].......... ; Loading "cl-pdf" [package pdf].................................. (:cl-pdf) sch(79): (example1 "c:/temp/temp.pdf") #P"c:\\temp\\temp.pdf" sch(80): (ed *) It works ... thanks team.. Martin M

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[pro] Jonl
by Steve Haflich 23 Aug '14

23 Aug '14

[Sorry if this isn't quite the usual business for this list.] I've been wanting to get in touch with my old X3J13 colleague JonL White, but email to his last known good address got no response. He is one of the important contributors to Lisp development over the past half century. I believe he is still somewhere in the silicon valley area, but he has had health issues the past several years. Anyone have recent news or contact information? TIA--

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[pro] Langutils
by peter 22 Aug '14

22 Aug '14

From Re: [pro] CL-PDF in ACL 64bit - anyone know how to get 64bit ZLIB? At 5:27 AM +0100 14/8/22, Nick Levine wrote: There should be no "try to build" with quicklisp - it's supposed to Just Work. Not only does Langutils not work (although it can seem to load OK in some contexts), but it can be tricky to unpick such as langutils-tokenize::tokenize-stream with its many layers of macro and readtable optimizations. It doesn't seem so obvious as to where to find who might have unpicked this already. Or find documentation behind a system and its design intent. I.e. although perhaps nothing should be in Quicklisp unless pure and solid, it can be quite a goose chase to try to hunt down remedies when that does not seem the case.

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