use strict; use warnings; use HTML::TreeBuilder; my $str = '
>YBR018C GAL7 275433 275933 TTTGATATCACTCACAACTATTGCGAAGCGCTTCAGTGAAAAAATCATAA GGAAAAGTTGTAAATATTATTGGTAGTATTCGTTTGGTAAAGTAGAGGGG GTAATTTTTCCCCTTTATTTTGTTCATACATTCTTAAATTGCTTTGCCTC TCCTTTTGGAAAGCTATACTTCGGAGCACTGTTGAGCGAAGGCTCATTAG ATATATTTTCTGTCATTTTCCTTAACCCAAAAATAAGGGAAAGGGTCCAA AAAGCGCTCGGACAACTGTTGACCGTGATCCGAAGGACTGGCTATACAGT GTTCACAAAATAGCCAAGCTGAAAATAATGTGTAGCTATGTTCAGTTAGT TTGGCTAGCAAAGATATAAAAGCAGGTCGGAAATATTTATGGGCATTATT ATGCAGAGCATCAACATGATAAAAAAAAACAGTTGAATATTCCCTCAAAA ATGACTGCTGAAGAATTTGATTTTTCTAGCCATTCCCATAGACGTTACAA'; my $tree = HTML::TreeBuilder->new; $tree->parse ($str); print $_->as_text () . "\n" for $tree->find ('pre');