It would be really simple to knock up something that did this using HTML::Parser, but it's perhaps worth pointing out that if you are at all interested in XHTML compatibility then valid XHTML tags are all lower case.

Update: Here's a basic HTML::Parser solution. It can almost certainly be improved and/or simplified.

#!/usr/bin/perl

use strict;
use warnings;

use HTML::Parser;

my $p = HTML::Parser->new(start_h => [\&start, 'tagname, attr, attrseq
+'],
                          end_h   => [\&end,   'tagname'],
                          text_h  => [\&text,  'text']);

$p->parse_file(shift);

sub start {
  my ($name, $attr, $attrseq) = @_;

  print '<' . uc($name);
  if (keys %$attr) {
    foreach (@$attrseq) {
      print ' ' . uc($_) . '="' . $attr->{$_} . '"';
    }
  }
  print '>';
}

sub end {
  print '</' . uc($_[0]) . '>';
}

sub text {
  print $_[0];
}

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<http://dave.org.uk>

"The first rule of Perl club is you do not talk about Perl club."
-- Chip Salzenberg

In reply to Re: Converting HTML tags into uppercase using Perl by davorg
in thread Converting HTML tags into uppercase using Perl by steve_g50

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