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bug#23440: 25.1.50; xml.el parses default namespace incorrectly


From: David Engster
Subject: bug#23440: 25.1.50; xml.el parses default namespace incorrectly
Date: Wed, 04 May 2016 08:06:36 +0200
User-agent: Gnus/5.13001 (Ma Gnus v0.10) Emacs/25.0.50 (gnu/linux)

Eric Abrahamsen writes:
> Apparently xml.el isn't doing quite the right thing when parsing xml
> default namespaces. With the following text:
>
> <multistatus xmlns="DAV:">
> </multistatus>
>
> M-: (xml-parse-region nil nil nil nil 'symbol-qnames)
>
> Should return:
>
> ((DAV:multistatus ((... . "DAV:"))
>
> But actually returns:
>
> ((multistatus ((http://www\.w3\.org/2000/xmlns/xmlns . "DAV:"))

Should be fixed by the attached patch, but I need to test a bit more
before pushing it.

-David

diff --git a/lisp/xml.el b/lisp/xml.el
index 414300c..848a030 100644
--- a/lisp/xml.el
+++ b/lisp/xml.el
@@ -646,8 +646,10 @@ xml-parse-string
 (defun xml-parse-attlist (&optional xml-ns)
   "Return the attribute-list after point.
 Leave point at the first non-blank character after the tag."
-  (let ((attlist ())
-       end-pos name)
+  (let* ((attlist ())
+        (symbol-qnames (eq (car-safe xml-ns) 'symbol-qnames))
+        (xml-ns (if symbol-qnames (cdr xml-ns) xml-ns))
+        end-pos name)
     (skip-syntax-forward " ")
     (while (looking-at (eval-when-compile
                         (concat "\\(" xml-name-re "\\)\\s-*=\\s-*")))

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