Latest stable version: 3.43.0
Release date: December 22, 2020
Requirements
Logtalk runs on any operating-system with a standards compliant modern Prolog compiler. The interface between Logtalk and a specific backend Prolog compiler is accomplished using a small adapter file. The Logtalk distribution includes adapter files for all supported Prolog compilers:
- B-Prolog 7.8 or later versions
- Ciao Prolog (version 1.19.0 or later) (experimental)
- CxProlog 0.98.1 or later versions
- ECLiPSe 6.1#143 or later versions
- GNU Prolog 1.4.5 or later versions
- JIProlog 4.1.6.1 or later versions
- LVM 1.0.0 or later versions
- Qu-Prolog 9.7 or later versions
- Quintus Prolog 3.3~3.5 (experimental)
- SICStus Prolog 4.1.0 or later versions
- SWI Prolog 6.6.0 or later versions
- Tau Prolog (version 0.3.0 or later)
- Trealla ProLog (version 1.4.0 or later) (experimental)
- XSB 3.8.0 or later versions
- YAP 6.3.4 or later versions
Legacy Logtalk versions 2.x and old Logtalk 3.x versions provide support for several other Prolog compilers, which are no longer supported due to lack of compliance with official and de facto standards and unfixed bugs.
Be sure to install the Prolog systems that you want to use as backend compilers before installing Logtalk. In general, it is recommended that you install the most recent versions of the Prolog systems.
License
Logtalk is an open source programming language, distributed under the
Apache License 2.0.
The copyright notice and license applies to all files in this release
(including sources, documentation, and examples) unless otherwise
explicitly stated (see the NOTICE.txt
file for details on bundled third-party resources).
Git repo
The Logtalk git repo is currently hosted at GitHub. Follow these steps for running Logtalk development versions. See the release notes for the latest changes.
You may keep up to date on development changes by subscribing to the Logtalk commits RSS feed.
Sources
logtalk-3.43.0.tar.bz2
7ab5f1ceec6d7d6c0283994637942dd649642b9215cddafabd4aafbcda5812c4
(SHA-256)
Includes the HTML versions of the Handbook and the APIs documentation. The bundled
INSTALL.md
file contains manual installation instructions.
Installers
Be sure to read the
README.md
,
CUSTOMIZE.md
, and
QUICK_START.md
files on the Logtalk user directory for important information, including
instructions on how to customize and run Logtalk. For Windows users,
this information is also available from the Logtalk
program group in
the Start Menu
.
The following installers are available for the latest stable version:
macOS
Based on the MacPorts portfile. Installs
Logtalk on /opt/local/share/
with integration scripts for supported
Prolog compilers on /opt/local/bin
. Creates an /Applications/Logtalk
folder with links to the installed files.
logtalk-3.43.0.pkg.zip
bcc2cb9ab3e9b316f8ece0c288a1a47f732ccb8e7d004ffaf691b95320eb57a3
(SHA-256)
A MacPorts portfile is also available. Users
may simply type the command sudo port install logtalk
(or
sudo port upgrade logtalk
) in order to install (or upgrade) Logtalk.
Homebrew users may simply type the
command brew install logtalk
(or brew upgrade logtalk
) in order to
install (or upgrade) Logtalk. But do check first that the MacPorts
portfile and the Homebrew formula are up-to-date.
Linux
Installs Logtalk on /usr/local/share
with integration scripts for
supported Prolog compilers on /usr/local/bin
.
logtalk-3.43.0-1.noarch.rpm
2bd28f3cdf5cb42c33653d8c07d001419745df056d8cc707960cf4101488b511
(SHA-256)
Package installation from the command-line is highly recommended:
$ sudo rpm -i logtalk-3.43.0-1.noarch.rpm
Logout and login after running the installer to activate the default values for the Logtalk environment variables.
Debian (e.g. Ubuntu)
Requires dpkg 1.15.0 or a later version. Installs Logtalk on
/usr/share
with integration scripts for supported Prolog compilers on
/usr/bin
.
logtalk_3.43.0-1_all.deb
9a914db6bc2f52bb1f5c4253785638ed95c3328a85854fe4c11389ee78575682
(SHA-256)
Package installation from the command-line is highly recommended:
$ sudo dpkg -i logtalk_3.43.0-1_all.deb
Logout and login after running the installer to activate the default values for the Logtalk environment variables.
Windows
Be sure to install a compatible Prolog compiler
before running the Logtalk installer. Creates a Logtalk
program
group in the Start Menu
with integration shortcuts for supported
Prolog compilers and shortcuts for the accessing the Logtalk
documentation. Can be used by both admin and non-admin users.
Installation video, courtesy of Paul Brown.
logtalk-3.43.0.exe
bc92c7c19705c6617a75ec25e17ed869c15494c937fc54d2d4e65368d1fd625f
(SHA-256)
VirusTotal scan results
Logtalk is also available as a Chocolatey package
and can be installed or updated using the choco install logtalk
and
choco upgrade logtalk
commands. Alternatively, on Windows 10 or Windows
Server 2019, you can use the Windows Subsystem for Linux (WSL) and install
Logtalk using one of the Linux installers listed in this page.
Installing on Windows 10 requires temporarily turning off Ransomware
protection
(in the Windows Defender Security Center
preferences) if
enabled as the Logtalk installer creates the the Logtalk user directory
inside the Documents
directory by default.
Automatically generated installers for the latest git versions can be download from AppVeyor.
SWI-Prolog packs
Logtalk is also available as a SWI-Prolog pack. The
pack is handy for deployment
but not ideal for development, however, as all the files in the distribution
(manuals, examples, …) are buried in a relatively deep sub-directory.
The pack can be easily installed typing the query pack_install(logtalk)
at the top-level (use the pack_info(logtalk)
query after installation
to find the installation directory). When upgrading an older pack, use
pack_install(logtalk, [update(true)])
or simply pack_remove(logtalk)
followed by pack_install(logtalk)
. See the pack specific
README.md
file for details. Also available as a manual download:
logtalk-3.43.0.tgz
49ff0c024e0c8e6bd415e3dc868478d7151108f8ffb54aa4d296e8d682ddf586
(SHA-256)
In this case, change directory to the download directory, start SWI-Prolog,
and run the query pack_install('logtalk-3.43.0.tgz').
There’s also an experimental pack that encapsulates de Logtalk
compiler and runtime in a logtalk
module. See the pack specific
README.md
file for details. This pack is only available as a manual download:
logtalk-experimental-3.43.0.tgz
627d212bb09a4d34ce5c0ecde889c7957c0163bb3c6d4a5d84fa6bbf6e2dccda
(SHA-256)
In this case, change directory to the download directory, start SWI-Prolog,
and run the query pack_install('logtalk-experimental-3.43.0.tgz').
Arch Linux package
Logtalk is also available as an Arch Linux package contributed by Ebrahim Azarisooreh.
Documentation
HTML, ePub, PDF, and Texinfo versions of the Handbook (includes a tutorial, the User Manual, the Reference Manual, and the FAQ). Note that the HTML version is included in the source and binary packages.
logtalk-manuals-3.43.0.tgz
7efc94a1d67311c7a2f8d530a5a007a667f131648b28552a169ee42ba3a5b29e
(SHA-256)
Docker images
Nightly and stable Docker images are available using selected backend Prolog compilers.
Older versions
Older releases are available here (but note that time stamps do not match the release dates due to all the moving of these files between servers along the years).
Sponsorship
If you want to express you appreciation for Logtalk and help keep it a sustainable project, your sponsorship is much appreciated. Sponsorship monthly tiers start at a symbolic $2 per month to hopefully allow everyone to show their love and support for Logtalk.
Registration
Consider registering if you become a Logtalk user.