NAME

    XML::Twig - Tree interface to XML documents allowing processing chunk
                by chunk of huge documents.
                

SUMMARY (see Twig.pod for full details)

    single-tree mode    
        my $t= new XML::Twig();
        $t->parsefile( 'doc.xml');
        $t->print;

    chunk mode 
        my $t= new XML::Twig( TwigHandlers => { section => \&flush});
        $t->parsefile( 'doc.xml');
        $t->flush;
        sub flush { $_[0]->flush; }
    
    sub-tree mode 
        # print all title's in the document
        my $t= new XML::Twig( TwigRoots => { title => 1 },
                              TwigHandlers => { title => \&list});
        $t->parsefile( 'doc.xml');
        sub list { print $_[1]->print . "\n"; }
    
INSTALLATION

    perl Makefile.PL
    make
    make test
    make install

CHANGES

    This is version 2.02 - 2001-01-16

    Added 
      XML::Twig safe_parse and safe_parsefile methods which wrap the parse
        in an eval block so errors are not fatal any more (the parse stops
        though)
      XML::Twig first_elt, get_xpath methods 
      XML::Twig::Elt descendants, sibling, child, sibling_text, child_text,
        prev_siblings, next_siblings, get_xpath methods
      PI's and comments can now ke either droped, kept or processed through
        the Pi and Comments options to XML::Twig::new (if kept they will be 
        moved if they occur within an element)
      StartTagHandlers can now be called outside of TwigRoots, in which case
        they are called with the following arguments: $t, $gi, %atts 
      EndTagHandlers (which can be called only _outside_ TwigRoots)

    Enhanced 
      removed recursion in next_elt and prev_elt
      handler can now be triggered with a gi[@att], *[@att], *[@att="val"],
          gi[string()=~/regexp/],  gi[string(child_gi)= "string"] and 
          gi[string(child_gi)=~/regexp/] conditions
      get_xpath accepts gi[@att] and gi[string()="toto"] conditions too 
      all options for new XML::Twig can now be written in lower case with _
          between words (eg twig_roots instead of TwigRoots) 

    Fixed bugs:
      in next_elt when the element was empty
      bug that marked the wrong element as the current one being parsed, thus
         preventing cut (and methods based on cut) to work properly.
      StartTagHandlers not set when created with new XML::Twig
      bug in print that prevented it from working with FileHandle refs
      allow ':' (for namespace processing) in gi's in xpath expression when
        setting handlers

AUTHOR

    Michel Rodriguez (m.v.rodriguez@ieee.org)
    The Twig page is at http://www.xmltwig.cx/ (mirror: http://www.xmltwig.com/)

COPYRIGHT

       Copyright (c) 1999-2000, Michel Rodriguez. All Rights Reserved.
     This module is free software. It may be used, redistributed
     and/or modified under the terms of the Perl Artistic License
          (see http://www.perl.com/perl/misc/Artistic.html)