Three little things, beyond what's said above: you might want to look at CPAN modules for dealing for CSS. They'll parse a bit of CSS for you and then let you get hold of the background-color attributes using a hash. Too easy!

You probably don't need the brackets round "background" and "color" in your regexp. The brackets will make perl remember what it found inside those brackets and store it in the $1 and $2 variables. That's probably a bit wasteful unless you need it.

Finally, it's valid CSS to have 3 characters rather than 6 specifying a hex colour value. See colour units in the CSS spec. Also, CSS is (mostly) case insensitive, so you probably want to match BACKgrouNd-CoLoR as well. Well, here's a slightly modified version:

if ( $css =~ /background-color\s*:\s*#([0-9a-f]{6}|[0-9a-f]{3})\s*;?/i + ) { print "background color is $1"; }

HTH
ViceRaid


In reply to Re: Background color HTML regexp by ViceRaid
in thread Background color HTML regexp by Tricky

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.