hyperformula VS yieldparser

My initial thoughts were how does a spreadsheet do it? but it's a different kind of beast.

In search of a parser toolkit I had come across this https://github.com/handsontable/hyperformula which uses chevrotain to parse spreadsheet formulas and decided to use chevrotain for the parsing.

There was a time when we used Excel Services in SharePoint to meet some of our business user needs. I wouldn’t use Excel again, but back then it seemed to be a good trade-off between time-to-market and usability (meaning performance for most of the time).

Anyhow, we use https://github.com/handsontable/hyperformula to run calculations in our other components these days.

My project only depends on the hyperformula package (https://github.com/handsontable/hyperformula) and it also causes the following error when building the image:

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() {