AutoHotkey Community

[Joy2DWorld]

doc:

[Chris]

I'm not a PCRE or RegEx expert, this seems like a PCRE bug or quirk. If it's a bug, I think it should be reported and fixed. If it's intentional, I'd like an explanation if anyone knows one.

Thanks.

[Titan]

I think it's intentional, most control chars have special meaning in sets e.g. \b is usually a zero-width word boundary but as [\b] it means a backspace character.
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RegExReplace("irc.freenode.net/autohotkey", "^(?=(.(?=[\0-r\[]*((?<=\.).))))(?:[c-\x73]{2,8}(\S))+((2)|\b[^\2-]){2}\D++$", "$u3$1$3$4$2")

[Chris]

Thanks. I found this mentioned in the PCRE docs, so I've revised the wording to be: \R means "any single newline of any type", namely `r, `n, or `r`n (except inside a character set, where \R is the same as the letter "R").