https://bugs.exim.org/show_bug.cgi?id=2158
Philip Hazel <p...@hermes.cam.ac.uk> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |INVALID
Status|NEW |RESOLVED
--- Comment #2 from Philip Hazel <p...@hermes.cam.ac.uk> ---
Petr is absolutely right. PCRE2 does not have a warning mode like Perl, so I
felt it best to give an error because this is likely to be a user error. If you
want to include a hyphen in a class, it's best to put it first or last (or, as
Petr says, escape it). The pcre2pattern documentation says this:
"Perl treats a hyphen as a literal if it appears before or after a POSIX class
(see below) or before or after a character type escape such as as \d or \H.
However, unless the hyphen is the last character in the class, Perl outputs a
warning in its warning mode, as this is most likely a user error. As PCRE2 has
no facility for warning, an error is given in these cases."
In other words, it's a documented feature. I'm sorry you have been caught, but
I think it's better to err on the side of strictness.
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