Package "plog"

Title:	Dynamic Prolog blog engine with Markdown parser and RSS
Rating:	Not rated. Create the first rating!
Latest version:	1.0.3
SHA1 sum:	22f5e65220b1b397fff4eb344dfec621e37a4a73
Author:	Zhongying Qiao https://blauanarchy.org/
Maintainer:	Zhongying Qiao https://github.com/cryptoque
Packager:	Zhongying Qiao https://github.com/cryptoque
Home page:	https://github.com/SymbolicGarden/plog
Download URL:	https://github.com/SymbolicGarden/plog.git

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Details by download location

Version	SHA1	#Downloads	URL
1.0.3	22f5e65220b1b397fff4eb344dfec621e37a4a73	2	https://github.com/SymbolicGarden/plog.git
1.0.2	9882d70142676baa03c72787b71d96ff251adb08	2	https://github.com/SymbolicGarden/plog.git
	3f766eb836678fcc9402672bf15aff6a2113f864	1	https://github.com/SymbolicGarden/plog.git
1.0.1	1e25f68459e6a5b80025a5365555086bf0924baa	3	https://github.com/SymbolicGarden/plog.git
1.0.0	bfa8925e2d2eb670e32b67daac28b4f044479ab1	5	https://github.com/SymbolicGarden/plog.git

Plog — A Dynamic Prolog Blog Server

 

What does a blog engine look like if you write it in logic?

Dynamic Markdown -> HTML server in pure Prolog.

Yes, you can write a web server with Prolog. Plog is a blog engine written in pure Prolog that dynamically reads Markdown files, parses them at request time, and serves clean HTML using a minimal prolog HTTP server.

No frameworks. No dependencies. No JavaScript. Just Prolog.

To add a new blog entry, simply write it in markdown and add it as prolog file to the contents folder. The prolog engine will dynamically parse the markdown into html recursively for display.

Check the site live: https://blauanarchy.org

Features

• Dynamic Markdown parsing on request
• HTTP server and router
• HTML rendering via http/html_write
• Built-in RSS feed
• Simple content model

Supported Markdown constructs

• Headings
• Paragraphs
• Links
• Images
• Inline code and code blocks
• Bold, italic
• Blockquotes
• Horizontal rules

Getting started

• Install the pack:

  swipl pack install plog

• To overwrite the blog title, description and site link, create my_prolog_config.pl, or modify my_prolog_config.pl from the installed location:

  :- module(my_plog_config, []).
  :- multifile plog:site_title/1, plog:site_link/1, plog:site_description/1.
  
  plog:site_title('BlauAnarchy\'s Blogs'). % Change this with your own blog title
  plog:site_link('https://blauanarchy.org'). % Change this with your own blog link
  plog:site_description('A Blog site on Symbolic Coherence, written in pure prolog.'). % Change this with your own blog description

• To add blog contents, create a contents directory: contents and put your blogs files e.g. my_first_blog.pl inside. Checkout contents folder for examples. The blog files should be written in markdown and look like this:

  content("Put your markdown contents here").

• If you would like to add images to your blog markdown, you can create an images folder images and drop the files there.
• Load the configuration file, the pack, and run the server:

  [my_prolog_config].
  use_module(library(plog)).
  server(Port).

• Open the index page, you will see it lists all posts. Each post is served dynamically.

  http://localhost:Port

  That is the entire authoring model.

Design philosophy

This project intentionally avoids complexity. No abstractions unless justified. Everything is visible and understandable at a glance.

Authorship

Built by Zhongying Qiao.

If you find this project interesting, you’re welcome to star the repository or reuse it as a base for your own Prolog systems.

License

Apache License 2.0 Copyright © Zhongying Qiao 2025

Contents of pack "plog"

Pack contains 18 files holding a total of 852K bytes.