GNU bug report logs - #71985
Lexical directives at start of file

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From: Heime <heimeborgia <at> protonmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 71985 <at> debbugs.gnu.org
Subject: bug#71985: Lexical directives at start of file
Date: Mon, 08 Jul 2024 12:44:26 +0000

On Monday, July 8th, 2024 at 2:27 AM, Eli Zaretskii <eliz <at> gnu.org> wrote:

> > Date: Sun, 07 Jul 2024 19:19:41 +0000
> > From: Heime heimeborgia <at> protonmail.com
> > Cc: 71985 <at> debbugs.gnu.org
> >
> > On Sunday, July 7th, 2024 at 7:02 PM, Eli Zaretskii eliz <at> gnu.org wrote:
> >
> > > > Date: Sun, 07 Jul 2024 18:45:12 +0000
> > > > From: Heime via "Bug reports for GNU Emacs,
> > > > the Swiss army knife of text editors" bug-gnu-emacs <at> gnu.org
> > > >
> > > > I was curious whether the -- lexical-binding: t -- directive is effective
> > > > when there is an arbitrary number of comment characters before it.
> > >
> > > Why do you need to know this detail?
> >
> > Because I use ;;; as highlight when using outlines.
> >
> > > > For instance, in file.el:
> > > >
> > > > ;;; file.el -- lexical-binding: t --
> > > >
> > > > This is the first line from git-rebase.el in the Magit package:
> > > >
> > > > ;;; git-rebase.el --- Edit Git rebase files -- lexical-binding:t --
> > > >
> > > > This suggests that some characters can precede the variable list. However,
> > > > it's unclear if the number of characters can be arbitrary.
> > >
> > > Above you mention "comment characters". Here you are talking only
> > > about "characters" in general. I'm confused by what you are asking
> > > about.
> >
> > Yes about the starting ;;;. But then I have also seen additional non-directive
> > descriptions before the -- lexical-binding:t -- directive.
> >
> > As the lexical definition will be around a while, it would be good to know what
> > would be valid.
>
>
> Then the ELisp manual provides this information, I think.

It could be there.  But, where is it ?

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