this post was submitted on 09 Oct 2024
3 points (100.0% liked)

Concatenative Programming

146 readers
1 users here now

Hello!

This space is for sharing news, experiences, announcements, questions, showcases, etc. regarding concatenative programming concepts and tools.

We'll also take any programming described as:


From Wikipedia:

A concatenative programming language is a point-free computer programming language in which all expressions denote functions, and the juxtaposition of expressions denotes function composition. Concatenative programming replaces function application, which is common in other programming styles, with function composition as the default way to build subroutines.

For example, a sequence of operations in an applicative language like the following:

y = foo(x)
z = bar(y)
w = baz(z)

...is written in a concatenative language as a sequence of functions:

x foo bar baz


Active Languages

Let me know if I've got any of these misplaced!

Primarily Concatenative

Concatenative-ish, Chain-y, Pipe-y, Uniform Function Call Syntax, etc.


Cheat Sheets & Tutorials

Discord

IRC

Wikis

Wikipedia Topics

Subreddits

GitHub Topics

Blogs

Practice

founded 1 year ago
MODERATORS
 

Slint is a GUI toolkit, and is largely not relevant to concatenative programming. But the latest release adds a touch of postfix to the mix, which is nice to see.

From the blog post:

Math Gains Postfix Support

A subtle but profound change to the language. Traditional syntax:

Math.max(20, Math.abs(value.x))

New postfix syntax:

value.x.abs().max(20)

The new syntax improves readability by making the transformation steps more explicit. It works well for many operations but has limitations:

Effective for simple transformations (e.g., abs, max) Less intuitive for operations like clamp or atan2.

pos.y.atan2(pos.x) // Less clear than atan2(pos.y, pos.x)

So for now you cannot use postfix for all functions in the Math namespace. We may revisit these cases later, so give them a try and let us know your thoughts.

no comments (yet)
sorted by: hot top controversial new old
there doesn't seem to be anything here