Update Diff.php

[machtigBE]

changing \R to \r seems to fix the output of unicode characters

[Mistralys]

Hi, thanks for the pull request!

After doing a bit of research, I think I will add some tests first. The \R modifier should be the correct one, as it includes a range of newline characters. I suspect that the solution can be found in the unicode regex switch, but I will confirm it first.

[Mistralys]

The official regular expression doc has this to say:

"by default, the escape sequence \R matches any Unicode newline sequence. In 8-bit non-UTF-8 mode \R is equivalent to the following: (?>\r\n|\n|\x0b|\f|\r|\x85)"

http://www.pcre.org/current/doc/html/pcre2pattern.html#newlineseq

So in theory, the regex is correct. I will confirm :)

[Mistralys]

Hi @machtigBE,

I have pushed some changes and published a new release that fixes the issue.

[machtigBE]

Works perfectly, thank you！