How do you prototype a nice language?

1. gleam

   1 126 19,542 10.0 Rust

   ⭐️ A friendly language for building type-safe, scalable systems!

   

   > the Gleam language, which is written in Rust and has first-party LSP support

   How have I never heard of this language before?

   https://gleam.run/

2. SurveyJS

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   JavaScript Form Builder with No-Code UI & Built-In JSON Schema Editor. Keep full control over the data you collect and tailor the form builder’s entire look and feel to your users’ needs. SurveyJS works with React, Angular, Vue 3, and is compatible with any backend or auth system. Learn more.

   

3. shi

   2 3 7 7.9 Python

   a Simple Hackable Interpreter (by codr7)

   

   I've been working on lowering the bar for designing new languages lately:

   https://github.com/codr7/shi

   Very much a work in progress, but I hope to soon be able to provide the same minimal interpreter in Java/C/Common Lisp, each using the unique strengths of the host language.

4. tarsec

   3 2 23 4.3 TypeScript

   A parser combinator library in TypeScript

   

   I wrote a parser combinator library for TypeScript that I have been having a lot of fun with [1]. It has limitations, I wouldn't use it to write a full language programming language like Gleam, but for "language-ish projects", parser combinators can be lovely to use. I used it to build a typed version of Mustache [2].

   > Rather, I’m after a particular kind of software hygge: Loads instantly, doesn’t crash, and fits nicely in the hand.

   The author is talking about the language, but this is what parser combinators feel like to me, and could be another option. Tarsec is probably the most fun side project I have built in a while.

   [1] https://github.com/egonSchiele/tarsec

   [2] https://github.com/egonSchiele/typestache

5. typestache

   4 1 1 8.3 TypeScript

   Mustache with static typing

   

   I wrote a parser combinator library for TypeScript that I have been having a lot of fun with [1]. It has limitations, I wouldn't use it to write a full language programming language like Gleam, but for "language-ish projects", parser combinators can be lovely to use. I used it to build a typed version of Mustache [2].

   > Rather, I’m after a particular kind of software hygge: Loads instantly, doesn’t crash, and fits nicely in the hand.

   The author is talking about the language, but this is what parser combinators feel like to me, and could be another option. Tarsec is probably the most fun side project I have built in a while.

   [1] https://github.com/egonSchiele/tarsec

   [2] https://github.com/egonSchiele/typestache

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