Beefy Boxes and Bandwidth Generously Provided by pair Networks
Don't ask to ask, just ask

Comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
how about this:
#!/usr/bin/perl -w use strict; use Algorithm::Diff qw(diff LCS); use HTML::TokeParser; use LWP::Simple; sub tokenize_url { my $url = shift; my $content = get $url or die $!; my $p = new HTML::TokeParser(\$content); my (@tokens, $token); push @tokens, $token while (defined ($token = $p->get_token)); \@tokens; } my @content = map { tokenize_url($_) } qw{ }; # hash tokens based on their text content sub hash_token {$_[0][$_[0][0] eq 'T' ? 1 : -1]} my @diffs = diff $content[0], $content[1], \&hash_token; my @LCS = LCS $content[0], $content[1], \&hash_token; my $largest = 0; for my $hunk (@diffs) { my (@deletions, @additions); for (@$hunk) { push @deletions, $_ if $_->[0] eq '-'; push @additions, $_ if $_->[0] eq '+'; } my $size = @deletions > @additions ? @deletions : @additions; $largest = $size if $size > $largest; } print scalar(@{$content[0]}), " line", (@{$content[0]} == 1 ? '' : 's'), " in original", $/; print scalar(@{$content[1]}), " line", (@{$content[1]} == 1 ? '' : 's'), " in revision", $/; print scalar(@diffs), " hunk", (@diffs == 1 ? '' : 's'), " differ", $/; print $largest, " line", ($largest == 1 ? '' : 's'), " in largest hunk", $/; printf "Revision %0.2f%% similar to original$/", 100 * @LCS / @{$content[0]};

updated 2001-Aug-01: small code changes; renamed from "RE: Re: HTML Document Comparison"

In reply to HTML Token Diff by mdillon
in thread HTML Document Comparison by xjar

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, 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, 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.
  • Log In?

    What's my password?
    Create A New User
    LanX .oO(positively thought)
    [holli]: :) No. I might be small, but you don't want to be around me when I flip.
    [LanX]: I can imagine ...
    LanX hurts to be bitten between the legs ;-)
    [holli]: You see, I have a friend whose daughter has been damaged seriously because she wasn't vaccinated against measles. (Her mother being anti-vaxx).
    [LanX]: Contrary to Olivia newton John I don't like physical confrontations ...
    [LanX]: Oh, you spread measles in your saliva?
    [LanX]: ... and why did you bite hos daughter?
    [LanX]: *his
    [holli]: And this guy was also Anti-Vaxx and I just snapped. I shoed him all over the yard

    How do I use this? | Other CB clients
    Other Users?
    Others browsing the Monastery: (11)
    As of 2017-12-13 18:01 GMT
    Find Nodes?
      Voting Booth?
      What programming language do you hate the most?

      Results (373 votes). Check out past polls.