You can't "append" it per se. You can't just say you want part of a regexp to match and another part to fail for the thing to succeed. Regular expressions are meant to match something, not "not" match. There's a negative lookahead thing (?!pattern) but that wasn't meant for what you're trying to do. You need to design your regular expression to succeed, even if you intend to negate its results when you're done (like with unless or !~).

Perhaps if you give us a few lines of input and tell us what is supposed to match, and if so, what part of that string you expect your regexp to pull out, and we can try and point you in the right direction (or even write it).


In reply to RE: RE: Re: How do you match by Fastolfe
in thread How do you match by Limo

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.