Question mark is not recognized as dynamic glob and fails to find files

[vladshcherbin]

Environment

• OS Version: mac os 10.13.4
• Node.js Version: 11.14.0
• Fast-glob Version: 2.2.6

Actual behavior

I have a file: assets/css.css and a pattern with question mark: assets/?ss.css.

The file doesn't match the pattern.

Expected behavior

Since ? is for a single character, I'd expect the file to match the pattern.

I tried same thing with glob and micromatch, both of them return a match.

After a small investigation I found that assets/?ss.css pattern is considered as static here. is-glob package is used there and returns false for this pattern.

Steps to reproduce

Here is a repo with reproduction.

Use yarn start/npm start or run index.js file.

Code sample

const fastGlob = require('fast-glob')
const glob = require('glob')
const micromatch = require('micromatch')
const isGlob = require('is-glob')

async function run() {
  const pattern = 'assets/?ss.css'

  // fast glob
  console.log('fast-glob', await fastGlob(pattern)) // []

  // glob
  console.log('glob', glob.sync(pattern)) // [ 'assets/css.css' ]

  // micromatch
  console.log('micromatch', micromatch('assets/css.css', pattern)) // [ 'assets/css.css' ]

  // is glob
  console.log('is-glob', isGlob(pattern)) // false
}

run()