https://github.com/weirdnox/generic-grafcet

Generic Grafcet implementation, in C, using metaprogramming.
https://github.com/weirdnox/generic-grafcet

c generic grafcet macros metaprogramming preprocessor system

Last synced: 23 days ago
JSON representation

Generic Grafcet implementation, in C, using metaprogramming.

• Host: GitHub
• URL: https://github.com/weirdnox/generic-grafcet
• Owner: weirdNox
• License: other
• Created: 2018-05-15T23:23:16.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2018-05-19T11:47:32.000Z (over 6 years ago)
• Last Synced: 2024-10-29T18:30:57.113Z (2 months ago)
• Topics: c, generic, grafcet, macros, metaprogramming, preprocessor, system
• Language: C
• Size: 74.2 KB
• Stars: 5
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.org
  • License: LICENSE.org

Awesome Lists containing this project

README

        
* Generic Grafcet

This is a program that implements generic Grafcet systems with the help of very simple

macros. It is not provided as a library, but it should be easy to adapt it and embed it in

other programs.

It works by having the source be fed to a preprocessor, which generates custom functions

and enums in another file (preprocessor_output.h) that will be included by the original

one. This is a technique called [[https://en.wikipedia.org/wiki/Metaprogramming][metaprogramming]].

[[https://youtu.be/t8XrhOiZT2E][Watch a screencast here!]]

** Features

- Generic grafcet system, with a variable number of grafcets, states and transitions

- Customizable inputs and outputs

  - With rising and falling edges

- Colorful, automatic debug information

- State timers

- Supervising

  - Hierarchy (grafcets with lower index are updated first)

  - Grafcet freeze function

** The preprocessor

It was based on the simple preprocessor made on [[https://handmadehero.org/][Handmade Hero]] (which is a huge inspiration

for me!). It uses a pseudo [[https://en.wikipedia.org/wiki/Recursive_descent_parser][Recursive Descent]] which only parses some tokens of interest,

from all that are scanned.

** Some things missing

- Grafcet reset utility (set it to the starting point)

- Grafcet pausing

** License

This is made available in the MIT License, with some third party code documented as such.