I want to be able to eventually take a URL and determine the keyword density of the page. For starters, I am using just a simple scalar to play with.

What I want to do is go up to three keywords at a time (one word, two words and three word phrases). The one word is easy, I'll rip through the array and populate a $hash++ with it. But now moving on to two and three keyword phrases.

I was thinking about tossing in a regex in the split (assuming we can do that) to match 2 words and 3 words. Unfortunately my regex skills aren't up to par quite yet and not sure how to go about that.

The first problem I am having is it's breaking up on my apostraphes making the following 's' a new word I don't want that. 

my $content = qq(Three blind mice.  Three blind mice.  See how they ru
+n.  See how they run.  The butcher's wife came after them with a knif
+e, three blind mice.);
my @words = split(/\W/, $content);

chomp(@words);
foreach (@words) { print "$_\n"; }

[download]
I would like to see some advice on how to go about doing this the way I am trying to before seeing other methods on how to do this. I know there are ways to produce shorter code, but this is probably easiest for me to understand right now.

In reply to Word density by Anonymous Monk

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.