dryajov has asked for the wisdom of the Perl Monks concerning the following question:

Hi Monks,

I'm trying to use XML::SAX to modify parts of an XHTML document, however all my attempts have failed.

Here is what I'm trying to do:
#!/usr/bin/perl package MyHandler; use strict; use warnings; use base qw(XML::SAX::Base); use Data::Dumper; sub start_element { my $self = shift; my $data = shift; if( $data->{LocalName} eq 'span') { $data->{LocalName} = 'naps'; } $self->SUPER::start_element($data); # GOOD (and easy) ! #print Dumper($data); } 1; #============================ #Main programm #============================ use strict; use warnings; use XML::SAX::ParserFactory; use XML::SAX::Writer; my $out; my $o = XML::SAX::Writer->new( Output => \$out ); my $h = MyHandler->new( Handler => $o ); my $p = XML::SAX::ParserFactory->parser(Handler => $h); my $data; { local undef $/ }; $data = <DATA>; $p->parse_string( $data ); print $out; __DATA__ <?xml version="1.0" encoding="UTF-8"?> <html xmlns="" xmlns:wicket="http://wi"> <body> <wicket:panel> <form wicket:id="mvpForm"> <span>Edit Information: </span> <input type="checkbox" wicket:id="editForm"/> <span>Name: </span> <span wicket:id="name"></span> <input type="text" wicket:id="nameEdit"/> <span>Last Name: </span> <span wicket:id="lastName"></span> <input type="text" wicket:id="lastNameEdit"/> <span>DOB: </span> <span wicket:id="dob"></span> <input type="text" wicket:id="dobEdit"/> <span>Occupation: </span> <span wicket:id="occupation"></span> <input type="text" wicket:id="occupationEdit"/> <span>Gender: </span> <span wicket:id="gender"></span> <span wicket:id="genderEdit"/> <input type="submit" wicket:id="submit"/> </form> </wicket:panel> </body> </html>
The basic idea is to change every "span" to a "naps" and write the resulting modified XML to STDOUT. Also, it'd be nice to see if its possible to merge xml chunks using SAX, in other words, if I found a particular element that gets expanded to something else, how can I merge it with the output going to STDOUT? E.g. From:
<xmltag> <expandable/> </xmltag>
<xmltag> <expanded> This is an expanded element </expanded> </xmltag>


I'm crossposting this on stackoverflow