[[ [CL] means by this "display formatting".]]
[[Explain what's available in [TclDOM] and [tdom].]]
For TclDOM, just use the -indent option. For example,
dom::serialize $dom -indent yes
The man page [http://tclxml.sf.net/tcldom/2.3/tcldom-man.html] explains
the use of -indent and -indentspec.
[[Explain pretty_print package--application, why not at SF, plans, ...]]
[[License, too.]]
[[Last one CL packaged was
http://www.phaseit.net/claird/comp.lang.tcl/dom_pretty_print/dom_pretty_print-0.2.tar.Z ]]
----
[RS] can't resist to contribute a quite pretty one-liner proc:
package require tdom
proc xmlpretty xml {[[dom parse $xml] documentElement] asXML}
% xmlpretty "grill"
grill
Also see [XML] and
http://software.decisionsoft.com/software/xmlpp.pl