Genshi strips XML namespace declaration

[Alec Thomas <alec@…>]

Given the input:

<?xml version="1.0" encoding="utf-8"?>
<root />

Genshi currently produces:

<root />

This is because the XML namespace is distinct from processing instructions, thus Expat has a distinct callback for it. This callback is not currently handled by Genshi.

Patch attached which adds an XML_DECL type, which effectively just contains the values passed through from Expat. eg.

XML_DECL (u'1.0', u'utf-8', 1) ('feed.xml', 1, 0)

Outputs as:

<?xml version="1.0" encoding="utf-8" standalone="yes"?>

I didn't add XPath support for it, as apparently ​it's not a valid node (this is the only reference that I could find in the spec').

(Note that Expat doesn't appear to generate text elements between the XML decl and the first element, so the unit tests explicitly use \n)

[Alec Thomas <alec@…>]

Patch adding support for the XML declaration

[cmlenz]

(Slightly modified) patch applied in [558], and ported to 0.4.x in [559]. Thanks!