Your main issue seems to be that you fetch too much or the wrong things. Reminder: you need to put the thing you want to get in round brackets ... which is the \w\w\d\d\d\d\d in this case. So your regex could look like
(I don't see the need for look-aheads or or look-behinds here.)
update Flexx: why do you assume that the second field of an semicolon-seperated file is meant?
I agree that the specification is very vague. However from the examples given by invaderzard, it seems
that the text DR Pfam as well as the format (2 letters, 5 digits) are the important parts ...
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:
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
- 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
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||