this post was submitted on 26 Jan 2024
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Programming
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Factor!
It's incredible and elegant and defies some common categorization.
I've put some of my favorite resources in the sidebar of https://programming.dev/c/concatenative and I'm happy to walk through any particular challenges/examples -- I've done about the first week of Advent of Code with it this year, and the most recent handful of Perl Weekly Challenges, and some basic Euler problems.
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Re the sidebar: How are Nim and Roc partially concatenative?
I may be expressing it poorly and inaccurately, but what I mean is that in Nim you can re-order arguments and functions to start with some data followed by a series of transformations. The following two lines are equivalent:
Roc offers a similar flow with their
|>
operator. Here's a snippet from one of my Advent of Code 2022 solutions:https://en.wikipedia.org/wiki/Uniform_Function_Call_Syntax
Exactly. That's the second link under "Wikipedia Topics" in the sidebar.
That’s true, but if the transformations have more than one argument, they go after the name:
as opposed to concatenative programming languages, where all arguments go before the name and there’s no visual indication of the structure:
Also, there are more languages with this feature, for example D, VimScript or Koka.
Yup, I understand. That's why I've not put them in the concatenative section.
Thanks, maybe I'll add them to the sidebar! I hadn't heard of Koka.
If you have a suggested heading/description to replace "partially concatenative" I'm interested. Function chaining? And I'm not sure but maybe execline is actually concatenative and needs to be moved out of that section.
I think “uniform function call syntax” is the established term for this particular feature.
Thanks. I know that's the case for Nim's flexibility, but I didn't think it applied to the pipe operator stuff like in Roc. I'll do some reading tonight to confirm.