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devops/perl/Examples/Chap1/walk-html
2025-09-17 16:08:16 +08:00

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###
### walk_html
###
## Chapter 1 section 7
sub walk_html {
my ($html, $textfunc, $elementfunc) = @_;
return $textfunc->($html) unless ref $html; # It's a plain string
my @results;
for my $item (@{$html->{_content}}) {
push @results, walk_html($item, $textfunc, $elementfunc);
}
return $elementfunc->($html, @results);
}