Beefy Boxes and Bandwidth Generously Provided by pair Networks
Keep It Simple, Stupid

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
Hi Guys, Problem in a nutshell: I cannot retrieve Text node data. I am very new to Perl but need to use it for a project I am involved with. I need to write an XML parser that uses DOM that plugs into the back of apache.
My environment is: Solaris 2.6 Perl 5.6.0 Apache 1.3.12 Mod-perl 1.24 XML::Parser 2.27 XML::DOM 1.25 An example of the XML I am parsing is: <methodCall>Level1 Text <Level2a>Text at Level2a</Level2a> <Level2b>Text at Level2b</Level2b> </methodCall>
(In practice it will be more complex, but that is enough for now..) An exerept from my apache module code is.... (The xml arrives in $buf having been poked in over a socket) and it is all called from the handler() routine.
my $parser = new XML::DOM::Parser; $doc = $parser->parse( $buf ) or die "Unable to parse document"; $root = $doc->getFirstChild(); scanner($root); sub scanner { my ($rt) = @_; my $i; my $nde; my $ndeLst = $rt->getChildNodes(); my $numndes = $ndeLst->getLength() - 1; for ( $i = 0; $i < $numndes; $i++ ) { $nde = $ndeLst->item( $i ); if ($nde->getNodeType() == TEXT_NODE ) { $log->info( $i.$nde->getNodeValue()); print $i,"TEXT", $nde->getData(); } if ($nde->getNodeType == ELEMENT_NODE) { $log->info( $i.$nde->getNodeName()); print $i, "ELEMENT ", $nde->getNodeName(), "\n"; } scanner( $nde ); } }
Although the output is ugly, I believe I should be able to retrieve the Elements <tags> and the text (data). What I actually get is:
0TEXTLevel1 Text 1ELEMENT Level2a 2TEXT 3ELEMENT Level2b
The text elements seem to be lots of white space. I don't think you have to worry about casting in perl so I don't understand why I cannot retrieve the textual data. I do get the first level though. Incidently calling a $root->toString() prints everything so I know it is getting into the tree ok. I would greatly appreciate any advice from you perl gurus out there as I have spent many hours on this without any results !

In reply to XML::DOM::Parser by spoddie

Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":

  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?

    What's my password?
    Create A New User
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others studying the Monastery: (3)
    As of 2021-02-24 17:52 GMT
    Find Nodes?
      Voting Booth?

      No recent polls found