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Re: [elpa] externals/xr e77aa97: Postfix ops are literal after ^ but not


From: Stefan Monnier
Subject: Re: [elpa] externals/xr e77aa97: Postfix ops are literal after ^ but not after \(?:^\)
Date: Tue, 19 Feb 2019 15:29:17 -0500
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux)

>     Postfix ops are literal after ^ but not after \(?:^\)

BTW, some of those details of the syntax of regexps are really
undesirable.  Would it be possible for xr to flag them somehow to try
and discourage their use?

Of course, even better would be to flag such uses not only in xr but
more generally.  I'm thinking for example of a regexp that starts with
a postfix operator or that backslash-escapes a non-special character.


        Stefan



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