my $nist_parser = HTML::Parser->new( start_h => [\&start_nist, "self, tagname, attr"], end_h => [\&end_nist, "tagname, attr"], text_h => [\&text, "text"], );
my $nist_parser = HTML::Parser->new( start_h => [\&start_nist, "self, tagname, attr"], end_h => [\&end_nist, "tagname, attr"], text_h => [\&text, "text"], );