https://bugs.exim.org/show_bug.cgi?id=1884
Philip Hazel <ph10@???> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |INVALID
--- Comment #1 from Philip Hazel <ph10@???> ---
I think you must have caught the web page before an update. I have just looked
at it, and it now reads the same as the 8.39 tarball: \81 is either a back
reference, or the two characters "8" and "1".
In the PCRE2 documentation the wording is: "\81 is always a back reference"
because the behaviour has changed. The ChangeLog for 10.20 says this:
"24. Adjust the treatment of \8 and \9 to be the same as the current Perl
behaviour."
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