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Proposal: Programming Language Design

The vast majority of the high-scoring questions at the moment are about the technical side of programming language design (how do I implement ...). Many of them will also work on CS.SE as pointed out by pxeger here. I don't think PLD.SE should limit itself like this, but also accept more "developer experience"-related questions, e.g. how a decision will impact developer productivity, or how to give better feedback to the programmer, etc.

Are non-ASCII operators a good idea, and why? - If this question is changed to asking about pros and cons, I think it is a perfectly fine question about developer experience. It certainly impacts how a programmer can effectively use the language. A good answer would include how hard it is to set up a custom input (keyboard layout, editor setting, or other tooling support) and how some Unicode chars are used for better expressiveness in various existing languages.

How can I show multiple parse errors at once? is more of a technical question, but also touches on the UX side. Producing good error messages is a critical part of a language's usability, and producing multiple errors at once is the first step forward.

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Only if they can be made somewhat objective

"Should I use tabs or spaces for indentation" is bad.

"What are the advantages to using tabs over spaces for indentation in my language" is ok. And answers that just give their opinion without a neutral POV or sufficient backing should be downvoted/deleted.

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Of course!

Everything in PLD is UX-related. Anything a (practical) programming language can be designed to do comes down to making something easier for the user, whether it's writing correct code with a rich type system, writing performant code with an optimizing compiler, or writing code in a common ecosystem--so what's any different about writing code quickly, readably, or at all?

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