yieldparser VS parser

I’ve found generator functions work great for parsers. You yield the tokens you expect to be next. The token could be a string, a regular expression to be matched, or another generator function.

The library is open source here, contributions welcome: https://github.com/RoyalIcing/yieldparser

Generator functions have great support in modern browsers (not IE) and Node.js.

For example here’s a simple v4 IP address parser:

import { parse, mustEnd } from 'yieldparser';

function* Digit() {

I find straight forward, dedicated combinators much more readable and practical to use ie. for iterables (context where it makes a lot of sense) [0] example [1], runtime assertions (through refutations, which are much faster than combinators over assertions) [2], parser combinators for smallish grammars [3] etc.

In many cases vanilla/imperative js is more readable and terse, no need to bring functional fanaticism everywhere, just in places where it gives true benefits and in form that can be understood by peers.

Functional code can be beautiful and can also be unreadable/undebugable. Same with imperative code. It's great in js/ts you can pick approach where the problem is expressed more naturally and mix it at will.

[0] https://github.com/preludejs/generator

[1] https://observablehq.com/@mirek/project-euler

[2] https://github.com/preludejs/refute

[3] https://github.com/preludejs/parser

Parser combinators are great, we're using parser combinators in production, they are great ie. for typescript [0].

[0] https://github.com/preludejs/parser