add question mark character to strictRegex

[dlong500]

I'm opening this PR just to start the discussion (per @phated request from gulpjs/glob-parent#39).

There are lots of broken tests as this PR currently stands after adding the question mark character to strictRegex. See the linked issue in glob-parent for context why I think a question mark should be treated as a glob character.

[phated]

@jonschlinkert based on the discussion in the other thread. Are we going to support this?

[jonschlinkert]

based on the discussion in the other thread. Are we going to support this?

Hey @phated, I just responded here. I think this is something that would need to be solved in del or fast-glob, please let me know if I misunderstood.

EDIT: @dlong500 I forgot to mention, I don't think you are, but if you do use picomatch directly, instead of using the is-glob library, picomatch has a scan method that returns an object with an isGlob boolean (as well as the glob parent (aka base) and some other useful properties):

const result = picomatch.scan('!./foo/*.js');
console.log(result);
{ prefix: '!./',
  input: '!./foo/*.js',
  start: 3,
  base: 'foo',
  glob: '*.js',
  isBrace: false,
  isBracket: false,
  isGlob: true,
  isExtglob: false,
  isGlobstar: false,
  negated: true }