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Previously we omitted extra whitespace for single PCDATA/CDATA children, but in
mixed content there was extra indentation before/after text nodes.
One of the problems with that is that the text that you saved is not exactly
the same as the parsing result using default flags (parse_trim_pcdata helps).
Another problem is that parse-format cycles do not have a fixed point for mixed
content - the result expands indefinitely. Some XML libraries, like Python
minidom, have the same issue, but this is definitely a problem.
Pretty-printing mixed content is hard. It seems that the only other sensible
choice is to switch mixed content nodes to raw formatting. In a way the code in
this change is a weaker version of that - it removes indentation around text
nodes but still keeps it around element siblings/children.
Thus we can switch to mixed-raw formatting at some point later, which will be
a superset of the current behavior.
To do this we have to either switch at the first text node (.NET XmlDocument
does that), or scan the children of each element for a possible text node and
switch before we output the first child.
The former behavior seems non-intuitive (and a bit broken); unfortunately, the
latter behavior can cost up to 20% of the output time for trees *without* mixed
content.
Fixes #13.
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The current code is not optimal; since users actually read samples/tests
change them to use faster (and shorter!) code.
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git-svn-id: http://pugixml.googlecode.com/svn/trunk@846 99668b35-9821-0410-8761-19e4c4f06640
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git-svn-id: http://pugixml.googlecode.com/svn/trunk@839 99668b35-9821-0410-8761-19e4c4f06640
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git-svn-id: http://pugixml.googlecode.com/svn/trunk@607 99668b35-9821-0410-8761-19e4c4f06640
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git-svn-id: http://pugixml.googlecode.com/svn/trunk@544 99668b35-9821-0410-8761-19e4c4f06640
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git-svn-id: http://pugixml.googlecode.com/svn/trunk@383 99668b35-9821-0410-8761-19e4c4f06640
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