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From: Philipp Stephani
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Subject: bug#20640: 24.5;
lexical-binding should work like a normal file-local variable
Date: Sun, 21 Jun 2015 20:08:52 +0000
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To: Stefan Monnier , Glenn Morris
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Stefan Monnier schrieb am Mi., 27. Mai 2015 um
03:49 Uhr:
> > Even if the code were to check for "coding:" (which we already have to
> > scan the end of the file for) and "lexical-binding:" in the same pass?
>
> The check for "coding:" is a misdesign, indeed. I think we should use
> some utf-8 tell-tale sign at the beginning of *.el files to eliminate
> the need to check for "coding:" (and to go through
> load-with-code-conversion) in the normal case. It could be a utf-8 BOM
> or something like that. Ideally we could give extra meaning to this
> marker so it not only means "uses utf-8" but also "uses
> lexical-scoping", so that we can have a future where we don't need to
> add "lexical-binding:t" to every file.
>
>
>
I don't think this is a misdesign. In most cases files are either seekable
or small enough so that reading the variables from the end is tolerable. I
prefer the end of files for local variables because they tend to be less
important than the actual content.
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> Even if the code were to check for "c=
oding:" (which we already have to
> scan the end of the file for) and "lexical-binding:" in the =
same pass?
The check for "coding:" is a misdesign, indeed.=C2=A0 I think we =
should use
some utf-8 tell-tale sign at the beginning of *.el files to eliminate
the need to check for "coding:" (and to go through
load-with-code-conversion) in the normal case.=C2=A0 It could be a utf-8 BO=
M
or something like that.=C2=A0 Ideally we could give extra meaning to this
marker so it not only means "uses utf-8" but also "uses
lexical-scoping", so that we can have a future where we don't need=
to
add "lexical-binding:t" to every file.
I don't think this is a misdesign.=
In most cases files are either seekable or small enough so that reading th=
e variables from the end is tolerable. I prefer the end of files for local =
variables because they tend to be less important than the actual content.=
=C2=A0
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