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Re: master 13fe8a2: Fix rare undefined behaviors in replace-match
From: |
Stefan Monnier |
Subject: |
Re: master 13fe8a2: Fix rare undefined behaviors in replace-match |
Date: |
Sat, 03 Aug 2019 17:02:41 -0400 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) |
>> + xsignal2 (Qerror,
>> + build_string ("replace-match subexpression does not exist"),
>> + subexp);
>
> This is probably a better error to signal here for this error, but it
> possibly changes the behaviour. If somebody previously had
> condition-case'd this for args-out-of-range, then they'll get a new
> error signalled now (which is why I kept that signal)...
One way out is to `define-error` a new error for that, which has
`args-out-of-range` as a parent.
Stefan