valueParser.unit(quantity) and scientific numbers

[jeddy3]

Firstly, thanks for writing this parser! We use it extensively in stylelint and its been rock solid so far.

We use valueParser.unit(quantity) in our unit-no-unknown rule.

An issue, stylelint/stylelint#3537, was raised about support for scientific numbers (e.g. 4e2px) as covered in the specs.

Reproduce with:

var postcssValueParser = require("postcss-value-parser");
postcssValueParser.unit("1e5px")

Expected:

{
  number: "1e5",
  unit: "px"
}

Got:

Expected:

{
  number: "1",
  unit: "e5px"
}

Is this something you'll be willing to support in this value parser?

[TrySound]

@jeddy3 hi, I'm not actively working on this project. I can accept PR with the fix.