feat(prefixRegex): add _ regex support

[townmi]

some time globalsPrefix not use hyphen, like react-modal. they use underline.

[constgen]

It is easy to confuse 'app' and 'application' in a such case. Better replace the dash with \b expression that means the end of the word with any delimiter or the end or start of the string. Which means that it should not be a substring of the word. I feel that we start to need unit tests

[townmi]

@constgen thank you for find my mistake, but underline can't match by \b expression in javascript, so I add [-|_] for support underline.

[constgen]

Ok. Lets not confuse [-|_] and (-|_)

• [-|_] finds -, |, _ symbols
• (-|_) finds - or _

So what is expected?

[townmi]

@constgen I confused [] and (), thanks , my mistake. I will remove | and use [-_]

[constgen]

Now it looks ok. But unfortunately I have no rights to merge these changes. I am not a collaborator of this project. Lets hope @nairinarinyan will respond quickly. Or may be will make me a core maintainer? ))