Adding pretty=True causes extra spaces in output about odfdo

[keestux]

The example program

#!/usr/bin/env python3

from odfdo import Document, Paragraph

mydoc = Document('BugOdfdo.odt')

content = mydoc.get_part('content')

mydoc.save(target='BugOdfdo2.odt', pretty=True)

[keestux]

Here is the example input ODT
BugOdfdo.odt

[keestux]

Maybe it is a bug in LibreOffice.
When I look at content.xml there is nothing different, except for the white space (pretty print).

[jdum]

Hi, thanks for this interesting bug. Actually I'm not sure to remember of what should be the correct interpretation of the standard. But a few first thoughts:

• as main ODF implementation, let's consider LibreOffice as "always right"...
• I'm surprised the pretty option breaks things, however maybe I use it mainly to analyse and debug the XML result, not in actual production code,
• the ODF standard says: http://docs.oasis-open.org/office/v1.2/os/OpenDocument-v1.2-os-part1.html at "3.18White Space Processing and EOL Handling" that "ODF processing of whitespace characters is in conformance with the provisions of XML, ..." but this can be quite complex (ODF uses the "tail" part of XML tags, aka the text after the tag itself...), and ODF has a special feature for multiple white chars. And if I remember, XML knows about "significant" and "insignificant" whitespaces (thus allowing the pretty output?). Thus a whitespace at "tail" position of a Span inside a paragraph, between Span tags is unclear for me. Should be insignificant as XML, but maybe still significant in ODF ?
• As a result, at least, I should add some information about the pretty print to possibly breaks the rendering in major ODF softwares.