Hey, XML::DOM!, My least favorite module!
Here is a more perlish (and which seems to be working
fine) version of your code:
my $parser = new XML::DOM::Parser;
my $doc = $parser->parse( \*DATA ) or die "Unable to parse document";
my $root = $doc->getDocumentElement(); # safer than just getting the f
# child, in case the document h
# DTD or start with comments
my ($rt) = @_;
foreach my $nde ( $rt->getChildNodes()) # yes it is an
if ( ($nde->getNodeType() == TEXT_NODE )
&& ($nde->getData()=~ /\S/s) ) # to avoid extr
+a white spaces
print $i++," TEXT /", $nde->getData(), "/\n";
if ($nde->getNodeType == ELEMENT_NODE)
print $i++, " ELEMENT ", $nde->getNodeName(), "\n";
scanner( $nde );
<Level2a>Text at Level2a</Level2a>
<Level2b>Text at Level2b</Level2b>
- Yes there are plenty of white spaces in your document.
The DOM states that they should be reported to the application.
In your case I think you can ignore "pure white spaces"
If you have a choice you should also wrap the text
at level 1 in a tag, it would make it easier to
ignore the trailing spaces and it would generally be
cleaner. Especially if you are dealing with data-oriented
XML it is a good idea to avoid mixed-content (text
such as Level1 Text and elements (Level2a
and Level2b) mixed within an element (methodCall).
- If you want to program in Java you should write Java code.
Seriously XML::DOM uses Perl native types such as arrays,
you should take advantage of it. The DOM is enough of
a pain as it is, no need to make it even more painful.
As for the oft heard argument than this is different than the Java API,
even Java programmers seem to be ditching the DOM in favour of JDOM (motto "Say NO to DOM"), a simpler interface
to the strict binding defined by the W3C so...
- use $root= $doc->getDocumentElement()
instead of getFirstChild(), that will save you some trouble
the day your XML document comes with a DTD or leading comment,
which is perfectly legal
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