Your earlier post included something like: 
my $url3="http://microrna.sanger.ac.uk/blah/blah";
my $content=get $url3;

[download]
This give you a string in $content that you can supply to $p->parse_content($content);.

I only used the special perl <DATA> file handle for the purposes of the example (so I could easily get a string of HTML). You won't need to do this as that is what LWP::Simple's get gives you.

You need to use the regex on the text, so something like this might do it (untested): 

for my $td (@tds){
  my $bold = $td->look_down(_tag => q{b}); # look for a bold tag
  next unless $bold;
  my $txt = $bold->as_text;
  if ($txt=~ m/miR|let/){
    print $txt, qq{\n}; # if there is one print the text
  }
}

[download]
Hope that helps

In reply to Re: quite SOLVED Re^4: parsing html by wfsp
in thread parsing html by paola82

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.