Beefy Boxes and Bandwidth Generously Provided by pair Networks
XP is just a number

Comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
Some of you might have experienced it, too. You work with an XML document whose structure is complicated. Constructing XPath queries becomes boring at last, even in an interactive XML processing tool like XML::XSH2. A diagram would help.

Here is a short xsh script that creates a dot source code. Just pipe its output to dot to get a nice graphical representation of the XML structure!

# xml2dot.xsh # Author: E. Choroba 2013 open {$ARGV[0]} ; my $count ; def processNonRec $type $parent $node { my $name = $type ; perl { $name .= $count->{"*$type"}++ } ; echo :s '"' $parent '"' " -> " '"' $name '"' ; echo :s '"' $name '" [label="' $type '()"]' ; } def processNode $parent $node { my $label = name($node); my $name ; perl { $name = $label."=".$count->{$label}++ } ; echo :s '"' $parent '"' " -> " '"' $name '"' ; if $node/self::* { if (count($node/../*[name()=$label]) > 1) { my $num = count($node/preceding-sibling::*[name()=$label]) + ; $label = concat($label,"[",$num+1,"]") ; } } else { $label = concat("@",$label) ; } echo :s '"' $name '" [label="' $label '"]' ; for ($node/* | $node/@* | $node/text() | $node/comment() | $node/processing-instruction()) { if self::* processNode $name (.) ; if count(.|../@*)=count(../@*) processNode $name (.) ; if self::text() processNonRec 'text' $name (.) ; if self::comment() processNonRec 'comment' $name (.) ; if self::processing-instruction() processNonRec 'pi' $name (.) + ; } } echo 'strict digraph' name() '{' ; echo 'node [shape=box]' ; processNode "document" /* ; echo '}' ;

Example usage:

xsh -al xml2dot.xsh data.xml | dot -Tpng > data.png
لսႽ ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ

In reply to Visualize a XML Document as a Tree by choroba

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 all is quiet...

    How do I use this? | Other CB clients
    Other Users?
    Others having an uproarious good time at the Monastery: (5)
    As of 2018-06-23 17:04 GMT
    Find Nodes?
      Voting Booth?
      Should cpanminus be part of the standard Perl release?

      Results (125 votes). Check out past polls.