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Re: Trimming strings, /emacs/lisp/emacs-lisp/subr-x.el modification

From: Eli Zaretskii
Subject: Re: Trimming strings, /emacs/lisp/emacs-lisp/subr-x.el modification
Date: Sat, 06 May 2017 13:43:14 +0300

> From: Jean-Christophe Helary <address@hidden>
> Date: Sat, 6 May 2017 19:33:10 +0900
> Cc: address@hidden,
>  address@hidden,
>  address@hidden
> My original idea was to put the regexp into a variable that *can* eventually 
> be overridden by a user preference.

Does this really have legitimate use cases?  We are talking about a
very low-level function; overriding its default definition of
whitespace by a user option would affect every single use of this
function, and will most probably disrupt some code which uses it.

I think having a way for overriding the default programmatically
should be good enough, at least for now.  Let's not provide a
defcustom unless and until we have use cases for that which we want to

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