Is the colon always going to be in place after the last octet? With /\d+\.$oc1\.$oc2\.$oc3\.$oc4\:*/, first, you don't need to escape the colon, and second, you use *, so that means 0 or more. That means that it'll ignore the colon if it means a longer match. The following will match the 4th octet exactly before the colon, or it won't match at all:

/\d+\.$oc1\.$oc2\.$oc3\.$oc4:/

In reply to Re: Regex to match an IP address that is embedded inside of another string by stevieb
in thread Regex to match an IP address that is embedded inside of another string by adamZ88

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.