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#!/usr/bin/perl

# This script will output event information as it parses the HTML document.
# This gives the user a "Parser's eye view" of an HTML document.

use strict;
use warnings;

use HTML::Parser ();
use Data::Dumper qw(Dumper);

sub h {
    my ($event, $line, $column, $text, $tagname, $attr) = @_;

    my @d = (uc(substr($event, 0, 1)) . " L$line C$column");
    substr($text, 40) = "..." if length($text) > 40;
    push(@d, $text);
    push(@d, $tagname) if defined $tagname;
    push(@d, $attr) if $attr;

    print Dumper(@d), "\n";
}

my $p = HTML::Parser->new(api_version => 3);
$p->handler(default => \&h, "event, line, column, text, tagname, attr");

$p->parse_file(@ARGV ? shift : *STDIN);