Install

This package is pure ESM. If you're not ready yet, install an older version of this program, 2.1.0 (npm i [email protected]).

npm i string-process-comma-separated

Quick Take

import { strict as assert } from "assert";

import { processCommaSep } from "string-process-comma-separated";

const gatheredChunks = [];
const gatheredErrors = [];
const rawnbsp = "\u00a0";

// it's a callback-interface:
processCommaSep(`<FRAMESET rows=" ,,\t50% ,${rawnbsp} 50% ,\t\t,">`, {
  from: 16, // <- beginning of the attribute's value
  to: 35, // <- ending of the attribute's value
  separator: ",",
  cb: (idxFrom, idxTo) => {
    gatheredChunks.push([idxFrom, idxTo]);
  },
  errCb: (ranges, message) => {
    gatheredErrors.push({ ranges, message });
  },
});

assert.deepEqual(gatheredChunks, [
  [20, 23],
  [27, 30],
]);

assert.deepEqual(gatheredErrors, [
  { ranges: [[16, 17]], message: "Remove whitespace." },
  { ranges: [[17, 18]], message: "Remove separator." },
  { ranges: [[18, 19]], message: "Remove separator." },
  { ranges: [[19, 20]], message: "Remove whitespace." },
  { ranges: [[23, 24]], message: "Remove whitespace." },
  { ranges: [[25, 27]], message: "Remove whitespace." },
  { ranges: [[30, 31]], message: "Remove whitespace." },
  { ranges: [[32, 34]], message: "Remove whitespace." },
  { ranges: [[31, 32]], message: "Remove separator." },
  { ranges: [[34, 35]], message: "Remove separator." },
]);

Documentation

Please visit codsen.com for a full description of the API. If you’re looking for the Changelog, it’s here.

Contributing

To report bugs or request features or assistance, raise an issue on GitHub.

Licence

MIT License

Copyright © 2010-2025 Roy Revelt and other contributors