You have [a..z] where you should have [a-z]. You also have 'my' in front of $content2, which is wrong if you are trying to match a string which is already in $content2. If you are trying to match against $_ and put the results in $content2, you should write:
my $content2 = m#(yourregexhere)#i;

[download]
or, maybe clearer,
my $content2 = ($_ =~ m#(yourregexhere)#i);

[download]

The construct (.+)+ doesn't really make sense. Just .+ would be okay, but you have to worry about matching too much. One possibility is .+?, but that's not the most efficient code and you could still get false matches in some cases, such as if the source text was, e.g.:

http://www.page.com/files4/i/90c/93898.gif is not a .jpg file

[download]
You might want 
m#(www\.page\.com/files\d+/[a-z]/\d\S+\.jpg)#i

[download]
or, if this is a real HTML link, 
  m#(www\.page\.com/files\d+/[a-z]/[^"']+\.jpg)#i

[download]

In reply to Re: very quick link regex by Thelonius
in thread very quick link regex 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.