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Frequently Asked Questions

Where can I get an implementation of Prolog in Lisp?

Kantrowitz & Margolin comp.lang.lisp FAQ
Implementations of Prolog in Lisp: The Frolic package from the University of Utah is written in Common Lisp and available by anonymous ftp from cs.utah.edu:/pub/frolic.tar.Z LM-PROLOG by Ken Kahn and Mats Carlsson is written in ZetaLisp and not easily portable to Common Lisp. It is available by anonymous ftp from sics.se:/archive/lm-prolog.tar.Z. Peter Norvig's book "Paradigms of AI Programming" includes Common Lisp implementations of a prolog interpreter and compiler.
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Do you know a good, free Lisp implementation?

Lisp FAQ
There are several. The Common Lisp implementation I use is Clisp, but CMUCL is also well-regarded. For Scheme hacking I use Scheme 48 and PLT Scheme.
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Is Scheme a lisp?

Frequently Asked Questions for comp.lang.lisp
Scheme is a member of the greater family of Lisp languages, assuming that is considered to include others like Dylan and Emacs Lisp. The design of Scheme predates the ANSI Common Lisp standard, and some CL features such as lexical scoping may be considered to have been derived from Scheme. More detailed comparative discussions don't generally prove very productive; those that are interested in discussing Scheme should first consider discussing it in comp.lang.
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What is Lisp?

Lisp FAQ
Lisp is a family of programming languages descended from a language John McCarthy invented (or more accurately, discovered) in the late 1950s. The two main dialects now are Common Lisp and Scheme. We're working on a new dialect called Arc.
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Staging Area for the Common Lisp FAQ
But you now wish to add a special case. Simple: (defun foo (bar &optional (special-case nil)) (if special-case 0 (+ bar 42))) (foo 3) 45 (foo 3 t) 0 Rather than having to write two functions, with the oldest one delegating to the new one, you simply amend the existing one with optional arguments, all of which you give a default value that you can now account for in the new version.
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Where can I find free lisp compilers or interpreters?

Frequently Asked Questions for comp.lang.lisp
A lightweight common lisp interpreter and compiler, which compiles to bytecode, and runs on Windows, AmigaOS, Acorns, OS/2 and most flavours of Unix. CLISP's implementation of CLOS is currently not quite complete. CLISP is licensed under the GNU GPL. CMUCL interpreter and optimizing compiler to native code running on a few flavours of Unix (including x86/FreeBSD, x86/Linux and sparc/Solaris). CMUCL can be difficult to compile; it requires itself to build itself, and bootstrapping is an issue.
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Where can I buy a professional lisp system?

Frequently Asked Questions for comp.lang.lisp
Franz Inc's Allegro Common Lisp is a fine lisp development environment. See their website for more detailsLCL Another offering from Xanalys, LispWorks has a different set of extensions above the ANSI specification from LCLMCL A commercial natively multithreaded implementation of Common Lisp for various Unixes.Symbolics Common Lisp
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What online resources are there for lisp users?

Frequently Asked Questions for comp.lang.lisp
A non-normative transferral of the official ANSI standard for Common Lisp to the hypertext medium, by Kent Pitman.Association of Lisp Users
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Why doesn't Common Lisp have continuations?

Frequently Asked Questions for comp.lang.lisp
Continuations are a great theoretical tool; if a language has first-class, multiply invocable continuations then one can build threads, exceptions, coroutines, and the kitchen sink on top. However, there is an implementation burden with continuations; supporting first-class, multiply invocable continuations complicates things tremendously for the Lisp implementor.
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Where can I get an implementation of LP?

Larch Frequently Asked Questions
Currently, LP only runs on Unix machines. You can get an implementation of LP using the world-wide web, starting at the following URL. http://www.sds.lcs.mit.edu/spd/larch/LP/news/distribution.html You can also get an implementation by anonymous ftp from the following URL. ftp://ftp.sds.lcs.mit.edu/pub/Larch/LP/ See section 2.
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What is ProLog III?

DEI Ltd
ProLog III is the latest version of the innovative process/inspection data logging system designed by DEI in Aberdeen, Scotland. b. ProLog 8100 IS data collector (Comprising DEI’s Intrinsically Safe unit and Pocket ProLog software) Taken together, this makes ProLog III unique in the marketplace and takes the logging and reporting of plant process data to a new level.
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How do I call non-Lisp functions from Lisp?

Kantrowitz & Margolin comp.lang.lisp FAQ
Most Lisp implementations for systems where Lisp is not the most common language provide a "foreign function" interface. As of now there has been no significant standardization effort in this area. They tend to be similar, but there are enough differences that it would be inappropriate to try to describe them all here.
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Can I do the implementation myself?

DataHabitat - FAQs
DataHabitat implementation requires a basic knowledge of how to set up ODBC connections and the Windows Task scheduler. You should contact your accounting system reseller if you have any questions.
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How can I learn Lisp?

Lisp FAQ
The way to learn any language is to write programs in it. You have two main dialects to choose between: Scheme and Common Lisp. They each have advantages and disadvantages, but the differences between them are tiny compared to the differences between them and other languages, so if you want to start learning Lisp, it doesn't matter which you choose. There are good books about both dialects, and many good free implementations.
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Where can I get a copy of On Lisp?

Lisp FAQ
It looks as if the book is going to be in print again soon, but if you are determined to have a valuable first edition, you can get a used copy at Amazon.
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Where can I get a Lisp interpreter?

Staging Area for the Common Lisp FAQ
You probably mean an interactive command processor that accepts Lisp expressions, evaluates them and prints their results. If so, you should simply look for a Common Lisp implementation or development environment, without regard to how expressions are processed. Although native machine code Lisp compilers have been available since the early 1960s, many outsiders still tend to refer to Lisp environments as "interpreters", with an implied assumption of poor performance.
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Is Lisp Slow?

Staging Area for the Common Lisp FAQ
Answer 2: Some free Common Lisp implementations have native-code compilers that are about half as fast as C. This translates to 2-4 times the speed of Java and 50-80 times the speed of Perl, Python, or Ruby. Refer to http://www.norvig.com/Lisp-retro.html for details.
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Where can I find more Lisp packages?

FAQ (komplett)
The best place to start looking is in the newsgroup gnu.emacs.sources, this can be searched online via Deja.com After that the Emacs Lisp List, which is maintained by Stephen Eglen <stephen@anc.ed.ac.uk> , is another good starting point, this lists several hundred lisp files, and a brief description, and thanks to ell.el can be used from within Emacs. WoMan allows Unix MAN pages to be browsed within Emacs, this lisp package requires no external programs.
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What is a LISP Routine and what do they do?

Lanc & Tully AutoCAD FAQ
LISP is a programming language that AutoCAD can understand. Many people have written LISP routines to perform all kinds tasks for AutoCAD users. You can think of them as scripts, macros, programs, or code. Basically, they are just text files with instructions (in a special language) that AutoCAD uses to automate repetitive or complicated AutoCAD tasks. An.lsp ? An autonumbering routine that creates and spaces a sequence of numbers for paperspace notes. Clo.lsp ? Current Layer Offset.
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What about schedule implementation?

Frequently Asked Questions (and their Answers)
I would hate to invest in one more organizational book, fail, and then have to explain to my husband!
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How does implementation of NEPA work?

Frequently Asked Questions-NEPA | Compliance and Enforcement...
In 1978, CEQ promulgated regulations [40 CFR Parts 1500-15081] implementing NEPA which are binding on all federal agencies. The regulations address the procedural provisions of NEPA and the administration of the NEPA process, including preparation of EISs. To date, the only change in the NEPA regulations occurred on May 27,1986, when CEQ amended Section 1502.
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Where can I get the CLDC reference implementation?

J2ME CLDC and K virtual machine: Frequently Asked Questions
The J2ME CLDC reference implementation (RI) is available on Sun's website at http://java.sun.com/products/cldc. The CLDC RI is a source code product that is provided for porting to various platforms.
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What is the CLDC HotSpot Implementation?

J2ME CLDC and K virtual machine: Frequently Asked Questions
The CLDC HotSpot[tm] Implementation is a high performance, battery-preserving virtual machine that is compliant with the CLDC specification. It not only offers significantly improved performance over the KVM, but it also offers greater portability and faster time to market. The CLDC HotSpot Implementation is suitable for devices based on ARM microprocessors/controllers, and with 512KB to 1MB of total memory available for the Java technology stack.
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Where can I get a free Lisp system?

Common Lisp FAQ
ABCL (Armed Bear Common Lisp) is an implementation of ANSI Common Lisp that runs in a Java virtual machine. It provides a runtime system, a compiler that compiles Lisp source to JVM bytecode, and an interactive REPL for program development. It runs on any platform that support Java 1.4 (or later), including Linux, Windows, and Mac OS X. It is, by the author's admission, a relatively young implementation, and has some notable limitations in its CLOS implementation.
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How can I turn a chain into a Prolog list?

Luca's XPCE programming FAQ
Try the Browsers/Prolog Predicates list from the online manual. The predicate is called chain_list(+Chain, -List).
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