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SWI Prolog Tutorial Winning eleven 7 full version for pc.

SWI-Prolog offers a comprehensive Free Software Prolog environment, which features fast compilation, robust and free of memory leaks, unbounded integer and rational number arithmetic based on GMP. Dan, Peter Ludemann 4. Go / golang and swi-prolog. I would put Erlang far to the right of Go in terms of 'beautiful, straight code'. (Or, unread, go / golang and swi-prolog. I would put Erlang far to the right of Go in terms of 'beautiful, straight code'. SWI Prolog by Jan Wielemaker is probably the most comprehensive Prolog development environment. It has excellent development facilities. It sports a graphical debugging environment and a range of libraries that allow you to implement GUIs, use object-orientation easily implement an http server (or client), TCP/IP sockets and many other functionalities.

By now it goes without saying, but I'll say it anyhow: This is a environment tutorial, not a language tutorial. For language documentation please see:

The tutorial is divided into three section listed below.

• Getting Started - finding and running SWI prolog
• Getting Help - using SWI's built in help
• Running a simple program - loading, running and debugging a simple program

SWI-Prolog is located on orcas and sanjuan in the following directory:

/cse/courses/misc_lang/axp/prolog/bin/pl

To avoid typing the directory every time, just add the following line to your .mycshrc file in your home directory:

set path = ($path /cse/courses/misc_lang/axp/prolog/bin)

and just type pl Teac usb card reader driver for mac. from anywhere to run SWI Prolog. If you wish to run SWI prolog from home the source code is available from the SWI-Prolog site at:

http://www.hio.hen.nl/faq/SWI-Prolog.html


Getting Help

You should see the following text when you run SWI-Prolog.

Getting help is easy thanks to the built in features in SWI-Prolog. As suggested by the startup screen, SWI-Prolog has a built in manual, which can be searched using help(<topic you need help on>). Just like in unix, you can search for a keyword using apropos(<some word>) To view the top level help menu simply type:

1 ?- help.

Make sure to include the PERIOD ('.'). The period tells prolog to interpret what you have written and not wait for any further input. Some more (relevant) examples of help:

2 ?- help(3). - shows the third section of the manual **note that typing 'q' returns you to the command prompt**

3 ?- help(;). - the continue operator

4 ?- apropos(trace). - lists key words associated with the trace function

Sample Prolog Interaction

Welcome to the comically complex sample of prolog. The sample interaction is motivated by the movie The Stupids. I suggest that none of you waste your time watching this movie. This single highlight of this movie is the 'I'm my own grandpa' song, whose lyrics can be viewed here.

Like Haskell you are unable to write rules directly at the command line. They must be loaded from a file using the consult command. Our sample file is called grandpa.pl, and should be saved locally. Once you have a copy of grandpa.pl start SGI Prolog and load the file by typing:

1 ?- consult('grandpa.pl').

You may also type ['grandpa.pl'] or just [grandpa] (because pl is the default file name.

NOTE: if you have a file named grandpa, and and file named grandpa.pl [grandpa] will load grandpa.pl. Look up help(consult) for further details.

Now all the definitions have been loaded you may further investigate the lineage of Stanley Stupid. In grandpa.pl are rules defining what the various relations are and facts about the Stupid Family. There is also another copy of the lyrics, with notes in the margins with the names we choose for characters. Type:

1 ?- married(father_stupid, X).

It will display the first value of X (a variable because it is capital) that satisfies the predicate married. To view more matching results use the ; key.

Experiment with the trace and spy functions, which allow you to follow prologs logic as it progresses through the rules. For complicated interactions you will see numbers appearing in the place of the variable names, these are values that the prolog uses when trying to find a match to the rules. Type:

1 ?- trace(grandparent). trace(step_parent).

Now you have turned on tracing for these two rules. To test if Stanley really is his own grandfather type:

2 ?- grandfather(stan_stupid, stan_stupid).

Now experiment with the different relations. Try:

1 ?- uncle(X, Y).

If there is circular logic then you can get the same answers over and over again. For now just use <control-c> to bring up the debugging menu and type a to abort. To exit the environment type:

1 ?- halt.

Have Fun. **Bonus points will be awarded to those who memorize the song.

** No bonus points will actually be awarded.

Swi-prolog Version 5.0.9

SWI-Prolog is a free implementation of the programming languageProlog, commonly used for teaching and semantic web applications. It has a rich set of features, libraries for constraint logic programming, multithreading, unit testing, GUI, interfacing to Java, ODBC and others, literate programming, a web server, SGML, RDF, RDFS, developer tools (including an IDE with a GUI debugger and GUI profiler), and extensive documentation.

SWI-Prolog runs on Unix, Windows, Macintosh and Linux platforms.

SWI-Prolog has been under continuous development since 1987. Its main author is Jan Wielemaker.

The name SWI is derived from Sociaal-Wetenschappelijke Informatica ('Social Science Informatics'), the former name of the group at the University of Amsterdam, where Wielemaker is employed. The name of this group has changed to HCS (Human-Computer Studies).

Web framework[edit]

SWI-Prolog installs with a web framework based on definite clause grammars.^[1]

Distributed computing[edit]

SWI-Prolog queries may be distributed over several servers and web pages through the Pengines system.^[2]

XPCE[edit]

XPCE is a platform-independentobject-oriented^[3]GUI toolkit for SWI-Prolog, Lisp and other interactive and dynamically typed languages. Although XPCE was designed to be language-independent, it has gained popularity mostly with Prolog. The development XPCE graphic toolkit started in 1987, together with SWI-Prolog.

It supports buttons, menus, sliders, tabs and other basic GUI widgets. XPCE is available for all platforms supported by SWI-Prolog.

PceEmacs[edit]

Swi-prolog Download Mac

PceEmacs is a SWI-Prolog builtin editor. PceEmacs is an Emacs clone implemented in Prolog (and XPCE). It supports proper indentation, syntax highlighting, full syntax checking by calling the SWI-Prolog parser, warning for singleton variables and finding predicate definitions based on the source information from the Prolog database.

Interface between Java and Prolog (JPL)[edit]

JPL is a bidirectional interface between Java and Prolog.^[4] It requires both SWI-Prolog and Java SDK.^[5] It is installed as a part of SWI-Prolog.

Constraint logic programming libraries (CLP)[edit]

Constraint logic programming functionality came rather late in the lifetime of SWI-Prolog, because it lacked the basic support.^[6] This changed early in 2004, when attributed variables were added to the language. The Leuven CHR library was then the first CLP library to be ported to SWI-Prolog. We mention SWI-Prolog's INCLP(R) library (De Koninck et al. 2006), which provides non-linear constraints over the reals and was implemented on top of CHR. Later came a port of Christian Holzbaur's CLP(QR) library and a finite-domain CLP(FD) solver. E maculation sheepshaver ub build for mac. Finally, a boolean CLP(B) solver was added.^[7]

See also[edit]

References[edit]

1. ^Wielemaker, Jan; Huang, Zhisheng; van der Meij, Lourens (2008). 'SWI-Prolog and the Web'(PDF). Theory and Practice of Logic Programming. 8 (3): 363–392. doi:10.1017/S1471068407003237. S2CID5404048.
2. ^Wielemaker, Jan; Lager, Torbjorn (14 May 2014). 'Pengines: WebLogic Programming Made Easy'. Theory and Practice of Logic Programming. 14 (special issue 4–5): 539–552. arXiv:1405.3953. doi:10.1017/S1471068414000192. S2CID9949345.
3. ^Programming in XPCE/Prolog.
4. ^Paul Singleton, Fred Dushin, Jan Wielemaker (February 2004). 'JPL: A bidirectional Prolog/Java interface'. SWI-Prolog.CS1 maint: uses authors parameter (link)
5. ^Paul Singleton (February 2004). 'JPL 3.x installation'. SWI-Prolog.
6. ^Jan Wielemaker, Tom Schrijvers, Markus Triska, Torbjörn Lager: SWI-Prolog. TPLP 12(1–2): 67–96 (2012).
7. ^Markus Triska: The Boolean Constraint Solver of SWI-Prolog (System Description). FLOPS 2016: 45–61.

External links[edit]

Swi-prolog.org