a tool that indents a document without changing its semantics.
Is there no such tool by definition?
The only way (in general) to reformat an XML file without changing its
semantics is to add the extra whitespace _inside_ the tags not in
element content.
so
you can change
<a>bbbb</a>
to
<a
bbbb</a
which is sometimes useful (James Clark's sp suite tends to use that
style) although not everyone likes the result.
indenting elements (as used for example in xsl:output indent="yes")
will in general change the document, which is why it is not on by
default in xml output (but is for html output).
David
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