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Re: icalendar.el bug fix patch

From: Stefan Monnier
Subject: Re: icalendar.el bug fix patch
Date: Sun, 03 Nov 2019 14:55:05 -0500
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux)

> what would be an equivalent for specifying regexp modifiers in Emacs Lisp?
> Maybe something like
>   (let ((regexp-modifiers "s"))
>     (string-match "." string))

That will affect all the regexp matching that will happen during
execution of this code, so it will require changes in debug.el and
edebug.el, and probably in elp.el and trace.el as well to "reset" the
var before running innocent code.

Also, it can be problematic for cases where we combine/concatenate
several regexp chunks.


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