# Céu

> synchronous programming language for reactive programming

**Wikidata**: [Q28457754](https://www.wikidata.org/wiki/Q28457754)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Céu_(programming_language))  
**Source**: https://4ort.xyz/entity/ceu

## Summary
Céu is a synchronous programming language specifically designed for reactive programming. It supports paradigms such as structured concurrency and event-driven programming, making it suitable for programming reactive systems.

## Key Facts
*   Céu is a synchronous programming language for reactive programming.
*   It is released under the MIT License.
*   The preferred stable version of Céu is 0.30, released on March 21, 2018.
*   Its programming paradigms include reactive programming, structured concurrency, synchronous programming, and event-driven programming.
*   Céu was inspired by the programming languages Esterel and Lua.
*   The source code for Céu is available on GitHub at https://github.com/ceu-lang/ceu.
*   Céu is classified as free and open-source software.
*   Its official website is http://www.ceu-lang.org/.
*   Céu is also known by the alias "Structured Synchronous Reactive Programming."

## FAQs
### Q: What is Céu?
A: Céu is a synchronous programming language primarily used for reactive programming. It is designed to facilitate the creation of reactive systems by supporting paradigms like structured concurrency and event-driven programming.

### Q: What programming paradigms does Céu support?
A: Céu supports several programming paradigms, including reactive programming, structured concurrency, synchronous programming, and event-driven programming.

### Q: Is Céu open source?
A: Yes, Céu is classified as free and open-source software. It is released under the MIT License, and its source code is publicly available on GitHub.

### Q: What languages influenced Céu?
A: Céu was inspired by the programming languages Esterel and Lua.

### Q: Where can I find Céu's source code?
A: The source code for Céu is hosted on GitHub. You can access its repository at https://github.com/ceu-lang/ceu.

## Why It Matters
Céu is significant as a synchronous programming language specifically tailored for reactive programming, a domain often characterized by complex asynchronous interactions. By employing a synchronous model, Céu aims to simplify the design and implementation of reactive systems, making their behavior more predictable and easier to reason about. This approach is particularly valuable in applications where precise timing, deterministic responses, and robust event handling are critical. Its support for structured concurrency and event-driven programming further enhances its utility, providing developers with tools to build reliable and maintainable software that reacts efficiently to external stimuli. In essence, Céu offers a distinct paradigm for tackling the challenges of reactive system development, promoting clarity and control over system dynamics.

## Notable For
*   Being a synchronous programming language explicitly designed for reactive programming.
*   Its support for structured concurrency and event-driven programming paradigms.
*   Its open-source nature, distributed under the MIT License.
*   Being inspired by established languages like Esterel and Lua.

## Body

### Definition and Classification
Céu is defined as a synchronous programming language for reactive programming. It is classified as an instance of a synchronous programming language, a reactive programming language, a structured programming language, and a concurrent programming language. Céu is also categorized as free and open-source software.

### Programming Paradigms
Céu supports multiple programming paradigms, including:
*   Reactive programming
*   Structured concurrency
*   Synchronous programming
*   Event-driven programming

### Key Features and Influences
Céu is also known by the alias "Structured Synchronous Reactive Programming." Its design was influenced by the programming languages Esterel and Lua.

### Licensing and Availability
Céu is released under the MIT License. Its source code repository is hosted on GitHub at https://github.com/ceu-lang/ceu. The official website for Céu is http://www.ceu-lang.org/, which is available in English. Céu is copyrighted.

### Version History
Céu has seen several stable releases. The preferred stable version is 0.30, which was released on March 21, 2018. Other stable versions include:
*   0.7 (released on 2014-04-03)
*   0.8 (released on 2014-06-25)
*   0.10 (released on 2015-09-11)
*   0.12b (released on 2016-10-07)
*   0.20 (released on 2017-01-25)

### Online Presence
Céu has a Wikipedia title, "Céu (programming language)," and its Wikipedia content is available in English. Its GitHub username is ceu-lang. Céu is associated with a YouTube channel under the handle "luagravity" (channel ID: UCLgzr52V_2rSpVP0ox-9exg), which started on February 15, 2009. As of August 27, 2023, this channel had 57 videos and 31 subscribers.

## References

1. [Source](https://github.com/ceu-lang/ceu/blob/master/LICENSE)
2. [Release 0.7. 2014](https://github.com/ceu-lang/ceu/releases/tag/v0.7)
3. [Release 0.8. 2014](https://github.com/ceu-lang/ceu/releases/tag/v0.8)
4. [Release 0.10. 2015](https://github.com/ceu-lang/ceu/releases/tag/v0.10)
5. [Release 0.12b. 2016](https://github.com/ceu-lang/ceu/releases/tag/v0.12b)
6. [Release 0.20. 2017](https://github.com/ceu-lang/ceu/releases/tag/v0.20)
7. [Release 0.30. 2018](https://github.com/ceu-lang/ceu/releases/tag/v0.30)
8. YouTube API