GNU bug report logs - #17964
24.3; xml-print inserts spurious whitespace

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From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Juliusz Chroboczek <jch <at> pps.univ-paris-diderot.fr>
Cc: 17964 <at> debbugs.gnu.org
Subject: bug#17964: 24.3; xml-print inserts spurious whitespace
Date: Tue, 01 Mar 2016 17:14:52 +1100

Juliusz Chroboczek <jch <at> pps.univ-paris-diderot.fr> writes:

> I'm trying to use Emacs' XML parser to parse Atom feeds, and I'm finding
> that xml-print inserts spurious whitespace in the XHTML content, which
> breaks formatting.  Here's a pretty minimal example:
>
> (require 'xml)
>
> (defun xml-parse-from-string (s)
>   (with-temp-buffer
>     (insert s)
>     (xml-parse-region (point-min) (point-max))))
>
> (defun xml-print-to-string (x)
>   (with-temp-buffer
>     (xml-print x)
>     (buffer-substring (point-min) (point-max))))
>
> (xml-print-to-string (xml-parse-from-string "<p>[<a>foo</a>]</p>"))
> "<p>[
>   <a>foo</a>]
> </p>"

I can confirm that this is still an issue on the Emacs trunk.  However,
our XML reader does not retain information about whitespace (or the lack
of it).  And

<p>[
   <a>foo</a>]
 </p>

is perfectly valid XML.  I don't really think there's a way to "fix"
this, if it's considered a bug, which is kinda isn't.  So I'm closing
this as "wontfix".

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

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