Support comma-separated flags values when using the `isMultiple` option

Description

Contributor guide

Tech stack

javascriptnodejs

Domain

cli

Issue type

feature

DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.

3

Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.

over 1 week

Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.

blocked

ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.

needs investigation

Prerequisites

awareness of yargs issue #846knowledge of meow's isMultiple option

Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.

15

Research direction

This issue is blocked by yargs/yargs#846, which must be resolved first. Once that is done, the feature can be implemented by modifying meow's handling of the `isMultiple` option to support comma separated values. Refer to the linked yargs issue for the expected behavior and inspect meow's source code in `index.js` for the current implementation of option parsing.