[lxml-dev] Lost DTD when serialising

[Stefan Behnel]

Hi,

Alex Klizhentas wrote:
> Hi All, I've read that
> "
> Serialising an ElementTree now includes any internal DTD subsets that are
> part of the document, as well as comments and PIs that are siblings of the
> root node.
> " (from changelog)
> 
> but I've failed to achieve this goal, dtd data is lost:
> 
>         root = lxml.etree.parse(StringIO("""<?xml version="1.0"
> encoding="utf-8"?>
>             <!DOCTYPE schema [
>               <!ATTLIST reference id ID #REQUIRED>
>               <!ATTLIST joined_values id ID #REQUIRED>
>               <!ATTLIST file id ID #REQUIRED>
>               <!ATTLIST lookup id ID #REQUIRED>
>               <!ATTLIST selector id ID #REQUIRED>
>               <!ATTLIST Column id ID #REQUIRED>
>             ]>
>             <schema/>
>         """))
>         print lxml.etree.tostring(root)
> 
> prints me
> 
> <schema/>

Time machine strikes again, I just fixed this fifteen minutes ago and was just
in the middle of testing it. :)

Here's a patch.

Stefan
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