swipl-devel
Apache
swipl-devel | Apache | |
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19 | 82 | |
902 | 3,428 | |
1.4% | 0.7% | |
9.9 | 9.3 | |
2 days ago | 3 days ago | |
C | C | |
GNU General Public License v3.0 or later | Apache License 2.0 |
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Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
swipl-devel
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If given a list of properties/definitions and relationship between them, could a machine come up with (mostly senseless, but) true implications?
Still, there are many useful tools based on these ideas, used by programmers and mathematicians alike. What you describe sounds rather like Datalog (e.g. Soufflé Datalog), where you supply some rules and an initial fact, and the system repeatedly expands out the set of facts until nothing new can be derived. (This has to be finite, if you want to get anywhere.) In Prolog (e.g. SWI Prolog) you also supply a set of rules and facts, but instead of a fact as your starting point, you give a query containing some unknown variables, and the system tries to find an assignment of the variables that proves the query. And finally there is a rich array of theorem provers and proof assistants such as Agda, Coq, Lean, and Twelf, which can all be used to help check your reasoning or explore new ideas.
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Scryer Prolog
SWIProlog[1] has so far been my go to due to the extensive support system it has. However, I've been meaning to explore higher order logic a bit and Ciao[2] caught my attention there, with sugar for function-like notation and higher order programming including "lambda" style predicate expressions .... and it compiles down to executable. The function notation in this context is along the same lines as Mozart/Oz and can be convenient. Not explore the higher order aspects much though.
[1]: https://www.swi-prolog.org/
[2]: https://en.wikipedia.org/wiki/Ciao_(programming_language)
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Not all possible results of a simple predicate given by backtracking.
?- version(). Welcome to SWI-Prolog (threaded, 64 bits, version 9.0.0)SWI-Prolog comes with ABSOLUTELY NO WARRANTY. This is free software. Please run ?- license. for legal details.For online help and background, visit https://www.swi-prolog.org For built-in help, use ?- help(Topic). or ?- apropos(Word). true. ?- del(a, L, [1,2,3]). L = [a, 1, 2, 3] ; L = [1, a, 2, 3] ; L = [1, 2, a, 3] ; L = [1, 2, 3, a] ; false.
- Looking for suggestions of interesting language to learn
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Could this code calculating primes be much more optimized?
$ swipl Welcome to SWI-Prolog (threaded, 64 bits, version 8.5.10) SWI-Prolog comes with ABSOLUTELY NO WARRANTY. This is free software. Please run ?- license. for legal details. For online help and background, visit https://www.swi-prolog.org For built-in help, use ?- help(Topic). or ?- apropos(Word). ?- [fm2gp_primes]. true. ?- time( setup_call_cleanup(open('prolog-primes.txt', write, Out), with_output_to(Out, primes(500_000)), close(Out)) ). % 8,766,852 inferences, 1.055 CPU in 1.198 seconds (88% CPU, 8311018 Lips) Out = (0x600000648100).
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Anyone got lots of trivial DCG examples?
The utilities in dgc/bacics.pl that you linked yourself are not too advanced, too quickly. Understanding those is exactly what you need in order to be able to write useful grammars for two reasons. They show how to approach many common issues with DCGs; and you know what building blocks you have at your disposal. I feel you discarded those too fast and strongly suggest you try to revisit them.
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Is Datalog a good language for authorization?
- And last but not least... the ability to convert authorization logic into SQL [4]. Which is done by having the language return constraints over any unbound (free) variables.
To me this is what makes logic programming exciting for authorization. It gives you this small kernel of declarative programming, and gives you a ton of freedom to build on top.
[1] https://www.swi-prolog.org/
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What is your favorite programming language that isn't Haskell?
(Btw. I'm using SWI Prolog.)
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What happened to clumped/2 in SWI-Prolog?
Welcome to SWI-Prolog (threaded, 64 bits, version 8.0.2) SWI-Prolog comes with ABSOLUTELY NO WARRANTY. This is free software. Please run ?- license. for legal details. For online help and background, visit http://www.swi-prolog.org For built-in help, use ?- help(Topic). or ?- apropos(Word). ?- use_module(library(lists)). true. ?- clumped([a,a,a,b,b,c], Rs). ERROR: Undefined procedure: clumped/2 (DWIM could not correct goal) ?-
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Choicepoints and empty lists
Many library predicates do the argument reordering to take advantage of this special case argument indexing as explained in the answer by u/mycl. For example library(apply) in SWI-Prolog. is full of those.
Apache
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The 2024 Web Hosting Report
Single-page applications (SPAs) existed before S3, but given that you still had to set up, scale, and maintain servers using something like Apache or NGINX in order to serve them, the advantages for “Ops” or “DevOps” were not so different to running a “real server” with a language like PHP, python, or Java.
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Performance benchmark of PHP runtimes
Apache(prefork mode) + mod_php.
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BCHS stack: BSD, C, httpd, SQLite
Simiplicity is nice, but there are reasons why Perl and PHP were the popular choices for web stacks in the early 2000's--they are faster and easier to develop with than C and likely safer than C too.
mod_perl (https://perl.apache.org/) and mod_php (https://cwiki.apache.org/confluence/plugins/servlet/mobile?c...) helped to make Apache httpd (https://httpd.apache.org/) the number one web server in the early days of the web.
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Apache2 in Local Machine
https://httpd.apache.org/ - Apache2 website
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Apache HTTP Server: An Overview of the Open Source Web Server for Multiple Platforms
The Apache HTTP Server project was initially launched in 1995 by a group of web developers and administrators who sought to improve upon the existing web server software available at the time. The project has since evolved into a collaborative effort, with contributors from around the world working together to maintain and enhance the server. Today, the Apache HTTP Server is managed by the Apache Software Foundation, a non-profit organization that oversees the development of numerous open source software projects.
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Selfmade PVE-Rack
Apache websites of friends and acquaintances
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What is LAMP stack? LAMP stack components, How LAMP Technologies work Together
Apache: This is the web server that is used in the LAMP stack. Apache is an open-source web server that provides a flexible and scalable platform for hosting web applications.
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How do you host a website locally in your personal network?
Install the web server software: Download the appropriate version of Apache HTTP Server for your operating system from the official website (https://httpd.apache.org/). Follow the installation instructions provided in the documentation.
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Keeping Your WordPress Website Safe and Secure with WP White Security
Popular web servers include Apache and Nginx. Apache is the most widely used web server on the internet, and it is known for its flexibility and extensibility. Nginx, on the other hand, is known for its speed and efficiency, and it is often used as a reverse proxy or load balancer.
- How can I set up a Node server on the cheap?
What are some alternatives?
scryer-prolog - A modern Prolog implementation written mostly in Rust.
Squid - Squid Web Proxy Cache
tau-prolog - An open source Prolog interpreter in JavaScript
Caddy - Fast and extensible multi-platform HTTP/1-2-3 web server with automatic HTTPS
the-power-of-prolog - Introduction to modern Prolog
HAProxy - HAProxy documentation
Vim - The official Vim repository
MySQL - MySQL Server, the world's most popular open source database, and MySQL Cluster, a real-time, open source transactional database.
biscuit-rust - Rust implementation of the Biscuit authorization token
Nginx - An official read-only mirror of http://hg.nginx.org/nginx/ which is updated hourly. Pull requests on GitHub cannot be accepted and will be automatically closed. The proper way to submit changes to nginx is via the nginx development mailing list, see http://nginx.org/en/docs/contributing_changes.html
MongoDB - The MongoDB Database
Cherokee - Cherokee Web Server