From: Stefan Monnier via Users list for the GNU Emacs text editor <help-gnu-emacs@gnu.org>
To: help-gnu-emacs@gnu.org
Subject: Re: and nXML mode
Date: Wed, 11 Aug 2021 01:45:22 -0400 [thread overview]
Message-ID: <jwv35rg4jzw.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: CAP_d_8UJ6kCBqgg+MwBK=zTqhgnnbY07JQg7JdYjhBD1PAX1jA@mail.gmail.com
>> Is there a reason why nXML mode refuses to consider entities as
>> legit in a document that starts with:
>>
>> <!DOCTYPE html>
>> <html xmlns="http://www.w3.org/1999/xhtml">
>
> If you view that as an XML document (which is what nXML deals with),
> without any preconceived knowledge of HTML5, there is nothing to
> suggest that is legit.
>
> In XML, an entity can be defined inline within the doctype declaration:
>
> <!DOCTYPE html [
> <!ENTITY nbsp "&#a0;">
> ]>
My understanding is that XML wants to be "parsable" without knowing
anything about the schema being used, and that this notion of parsing
includes conversion of `&<foo>;` entities, so basically XML only allows
the 4 or 5 predefined/builtin entities and that's it.
> <!ENTITY nbsp " " ><!-- no-break space = non-breaking
> space, U+00A0 ISOnum -->
I thought the recommended way to "do &bnsp;" in XML is to use an
actual NBSP character (because XML can use utf-8).
Stefan
next prev parent reply other threads:[~2021-08-11 5:45 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-09 2:22 and nXML mode Jean-Christophe Helary
2021-08-09 5:57 ` Yuri Khan
2021-08-11 0:41 ` Jean-Christophe Helary
2021-08-11 5:45 ` Stefan Monnier via Users list for the GNU Emacs text editor [this message]
2021-08-11 6:19 ` Yuri Khan
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