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Objectionary

EO Programming Language, Its Objects, and πœ‘-Calculus
README.md

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Here are the components around the EO programming language and the πœ‘-calculus it's based on:

  • /eo is the canonical transpiler of EO programs to Java (start here!)
  • /lints is a collection of linting rules for EO
  • /eoc is a command line toolkit for compiling and running EO programs
  • /eo-lsp-server is an LSP server for EO
  • /eo-vscode is an EO plugin for VS Code
  • /eo-intellij-plugin is an EO plugin for JetBrains IDEs
  • /home is where we keep EO sources of all "canonical" objects

Our blog with recent news is here: news.eolang.org. Read our academic papers. Read the book about EO.

Our Twitter tag is #eolang. This is what Hacker News thinks about us.

If you want to discuss, join our Slack workspace and Telegram chat.

By the way, here is the list of things we still haven't had time to implement. You can help!

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  1. eo eo Public

    EOLANG, an Experimental Pure Object-Oriented Programming Language Based on πœ‘-Calculus

    Java 1.5k 254

  2. home home Public

    Centralized curated storage of all EO objects together with their unit tests

    Shell 35 12

  3. eo-intellij-plugin eo-intellij-plugin Public

    Syntax Highlighting Intellij IDEA Plugin for EO Programming Language

    Java 18 11

  4. eoc eoc Public

    Command-line toolkit for parsing, compiling, transpiling, optimizing, linking, dataizing, and running EOLANG programs

    JavaScript 36 67

Repositories

Showing 10 of 68 repositories
  • news.eolang.org Public

    Our Official Blog: we write about the development of EOLANG and πœ‘-calculus

    objectionary/news.eolang.org's past year of commit activity
    HTML 16 MIT 8 13 7 Updated Oct 29, 2026
  • calculus-paper Public

    The original paper introducing the πœ‘-calculus, on which the EO programming language is based

    objectionary/calculus-paper's past year of commit activity
    TeX 11 MIT 4 3 (1 issue needs help) 4 Updated Oct 29, 2026
  • jucs Public

    JUnit Classpath Sources: a simple framework for using classpath resources as JUnit sources

    objectionary/jucs's past year of commit activity
    Java 10 MIT 7 14 5 Updated Oct 29, 2026
  • eo-graphs Public

    A few classic graph algorithms implemented in C++, Java, and EOLANG

    objectionary/eo-graphs's past year of commit activity
    Java 17 MIT 7 33 9 Updated Oct 29, 2026
  • xax Public

    Java library for testing XSL stylesheets with XML samples and XPath assertions

    objectionary/xax's past year of commit activity
    Java 10 MIT 3 12 6 Updated Oct 29, 2026
  • on-the-origin-of-objects Public

    On the Origin of Objects by Means of Careful Selection, LaTeX paper

    objectionary/on-the-origin-of-objects's past year of commit activity
    TeX 12 MIT 7 2 5 Updated Oct 29, 2026
  • eoc Public

    Command-line toolkit for parsing, compiling, transpiling, optimizing, linking, dataizing, and running EOLANG programs

    objectionary/eoc's past year of commit activity
    JavaScript 36 MIT 67 67 (7 issues need help) 72 Updated Oct 29, 2026
  • phie Public

    Experimental Emulator of a Machine that Understands πœ‘-calculus

    objectionary/phie's past year of commit activity
    Rust 15 9 21 14 Updated Oct 29, 2026
  • lints Public

    A collection of style checkers for XMIR: they don't predict runtime errors, but prevent compilation mistakes

    objectionary/lints's past year of commit activity
    Java 14 MIT 41 176 (22 issues need help) 42 Updated Oct 29, 2026
  • eo Public

    EOLANG, an Experimental Pure Object-Oriented Programming Language Based on πœ‘-Calculus

    objectionary/eo's past year of commit activity
    Java 1,475 MIT 254 186 (15 issues need help) 143 Updated Oct 29, 2026
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