March 2017 - armedbear-devel - mailman3.common-lisp.net

disabling debugger in production
by Vibhu Mohindra 26 Apr '17

26 Apr '17

I'm bundling up a program for distribution to customers. I don't want it to ever enter the debugger. I want it to raise Java exceptions instead. What I've written to achieve this follows. I've observed it working. However, there are still times when my program enters the debugger. I can't tell why, and want to prevent it entirely. Does anybody know? Does anyone on this list distribute ABCL applications to end users, and how do you disable the debugger? /* disable the debugger. raise a RuntimeException instead */ static void installDebuggerHook() { Symbol.DEBUGGER_HOOK .setSymbolValue(new Function() { public LispObject execute(LispObject c, LispObject h) { throw translateCondition(c);}}); } static RuntimeException translateCondition(LispObject c) { return new RuntimeException( c instanceof Condition ? String.format("%s: %s", c.princToString(), ((Condition) c).getConditionReport()) : c.princToString()); } My program is really a Lisp library that people will use via a thin Java layer. I have a hunch that the above takes care of errors that occur in: interpreter.eval("...") but not errors that occur in: someSymbol.execute(...) Thanks in advance, Vibhu

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Easy Maven publishing for GitHub projects
by Alessio Stalla 29 Mar '17

29 Mar '17

FYI, if you're interested, I've just stepped on this: https://jitpack.io/

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bug report: ENCODE-UNIVERSAL-TIME effectively ignores TIME-ZONE argument
by Robert Dodier 23 Mar '17

23 Mar '17

A contributor to the Maxima project bumped into this while trying Maxima + ABCL 1.4.0. CL-USER(1): (ENCODE-UNIVERSAL-TIME 48 1 15 15 8 1995 -23) 3017516508 CL-USER(2): (ENCODE-UNIVERSAL-TIME 48 1 15 15 8 1995 -13) 3017516508 CL-USER(3): (ENCODE-UNIVERSAL-TIME 48 1 15 15 8 1995 13) 3017516508 CL-USER(4): (ENCODE-UNIVERSAL-TIME 48 1 15 15 8 1995 23) 3017516508 CL-USER(5): (ENCODE-UNIVERSAL-TIME 48 1 15 15 8 1995 'foo) 3017516508 Not too surprising, I think -- a glance at ./src/org/armedbear/lisp/time.lisp shows that the TIME-ZONE argument doesn't take part in the calculations. TIME-ZONE does come into play in pre-14840 versions of time.lisp and the results are consistent with other CL implementations, at least for the examples exercised by the Maxima test suite (date parsing). Tried to submit a bug report via Trac but when I clicked on the OpenID button I get a connection reset error. Thanks for all your efforts, I appreciate it. Robert Dodier

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integration with java's threading
by Devon Miller 13 Mar '17

13 Mar '17

I saw that Bordeaux threads uses a very thin layer of java threads in their abcl implementation file. I wanted to use some libraries from java that use threading fairly heavily (web apis) and was wondering if there had been good testing with exchanging data from the lisp layer to the java layer when threading is heavily used in the java layer. For example, passing xml and json s-expr into java for processing and sending out through a multi-threaded environment i.e. akka actors.

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[CfPart] 10th European Lisp Symposium, Apr 3-4 2017, Brussels
by Didier Verna 03 Mar '17

03 Mar '17

ELS'17 - 10th European Lisp Symposium VUB - Vrije Universiteit Brussel Belgium April 3-4, 2017 In co-location with <Programming> 2017 Sponsors: Brunner Software GmbH, Franz Inc., LispWorks Ltd. and EPITA http://www.european-lisp-symposium.org/ Recent news: - Invited speakers announced (see below) - Registration open. Don't miss the March 13 deadline for the full <Programming> conference early bird discount! 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. Keynote speakers: - Hans Hübner -- Identity in a World of Values - Bohdan B. Khomtchouk -- How the Strengths of Lisp Facilitate Building Complex and Flexible Bioinformatics Applications Important dates: - 13 Mar 2017 Early registration deadline - 03-04 Apr 2017 Symposium - 05-06 Apr 2017 <Programming> main tack Programme chair: Alberto Riva, University of Florida, USA Programme committee: Marco Antoniotti, Università Milano Bicocca, Italy Marc Battyani, FractalConcept Theo D'Hondt, Vrije Universiteit Brussel, Belgium Marc Feeley, Université de Montreal, Canada Erick Gallesio, Université de Nice Sophia-Antipolis, France Stelian Ionescu, Google Rainer Joswig, Independent Consultant, Germany António Menezes Leitão, Technical University of Lisbon, Portugal Nick Levine, RavenPack Henry Lieberman, MIT, USA Mark Tarver, Shen Programming Group Jay McCarthy, University of Massachusetts Lowell, USA Christian Queinnec, Université Pierre et Marie Curie, France François-René Rideau, Bridgewater Associates, USA Nikodemus Siivola, ZenRobotics Ltd Alessio Stalla, Università degli Studi di Genova, Italy Chris Stacy, CS Consulting Search Keywords: #els2017, ELS 2017, ELS '17, European Lisp Symposium 2017, European Lisp Symposium '17, 10th ELS, 10th European Lisp Symposium, European Lisp Conference 2017, European Lisp Conference '17 -- Resistance is futile. You will be jazzimilated. Lisp, Jazz, Aïkido: http://www.didierverna.info

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asdf:defsystem complains about path, sometimes
by Mirko Vukovic 01 Mar '17

01 Mar '17

Hello, This is with asdf 3.1.7.27, Armed Bear Common Lisp 1.4.0 Java 1.6.0_41 Sun Microsystems Inc. OpenJDK 64-Bit Server VM, Emacs & Slime The following example code from the ASDF manual (asdf:defsystem "hello-lisp" :description "hello-lisp: a sample Lisp system." :version "0.0.1" :author "Joe User <joe(a)example.com>" :licence "Public Domain" :depends-on ("optima.ppcre" "command-line-arguments") :components ((:file "packages") (:file "macros" :depends-on ("packages")) (:file "hello" :depends-on ("macros")))) when executed via the ABCL command line gives a relative path error Invalid relative pathname #P"packages.lisp" for component ("hello-lisp" "packages") Restarts: 0: RETRY Retry ASDF operation. 1: CLEAR-CONFIGURATION-AND-RETRY Retry ASDF operation after resetting the configuration. 2: TOP-LEVEL Return to top level. If that code is in a file, then the file compiles cleanly: CL-USER(6): (load (compile-file "test.asd")) ; Compiling /home/mv/projects/poi+excel/test.asd ... ; (IN-PACKAGE :CL-USER) ; (ASDF/PARSE-DEFSYSTEM:DEFSYSTEM "hello-lisp" ...) ; Wrote /home/mv/projects/poi+excel/test.abcl (0.021 seconds) T CL-USER(7): I am looking for confirmation of this and second opinions before taking up at the ASDF mailing list. Thanks, Mirko

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