Editor: Word count should exclude ellipsis

[bassgang]

The "Word count" shown below the post editor counts a ellipsis "…" as a word at the moment. As a ellipsis is more punctation than a word, it should be excluded from the "Word count".

Steps to reproduce:

• Add a new post
• Add a ellipsis (Mac: Alt + .) "…"
• See "Word count"

I think this is a good first bug since the fix should be relatively easy. Extend the "clean" regular expression with ellipsis match in https://core.trac.wordpress.org/browser/trunk/src/wp-admin/js/word-count.js#L8.

[desaiuditd]

In this case; I think ellipsis does fall under Unicode characters category. So here the question is do we have to handle all the Unicodes and put a Regex for that or Unicodes are to be counted as a word.

[johnbillion]

Related: #27386

[lukechilds]

Added ellipsis unicode character to 'clean' regex.

[iseulde]

See #30966. The patch there would exclude ranges of unicode characters.

[iseulde]

In 33292:

Editor: word count: exclude more characters

Also only exclude these characters for the words type. They should be counted for other types.
Add the ASCIIOnly option to the uglify config to preserve escaped unicode characters.

See #30966. Fixes #27391.