Problem parsing number alias

[torifat]

Non-number alias

var argv = require("yargs-parser")(process.argv.slice(2), {
  alias: { z: "zero" },
  default: { zero: false }
});

console.log(argv);

$ node example.js --zero
{ _: [], zero: true, z: true }

$ node example.js -z
{ _: [], z: true, zero: true }

Number alias

var argv = require("yargs-parser")(process.argv.slice(2), {
  alias: { 0: "zero" },
  default: { zero: false }
});

console.log(argv);

$ node example.js --zero
{ '0': true, _: [], zero: true }

$ node example.js -0
{ '0': false, _: [ -0 ], zero: false }

For more context check sindresorhus/meow#89

[torifat]

I tried to create a PR and end up finding:

} else if (arg.match(/^-[^-]+/) && !arg.match(negative)) {

#44

[bcoe]

@torifat just catching up on old issues, I'm guessing this is because we allow -1, -2, -3, etc, as positional arguments, so it's ambiguous?