Hi,
I'm trying to match some strings and not others within the same regex but it's not working. I was hoping someone with far more experience and wisdom could take a look and point me in the right direction.

MATCH: r10,rect12x50,rect20.5x30.5,dounut_s12x30
NOMATCH: ddil3,construct+10,is.i274x

I need the interger or float values extracted.
i.e., r10 has $1 only but rect12x50 has $1 and $2 set. But for "r10" I am getting $1 = 1 and $2 = 0 sometimes. Strings with 2 distinct number values seem to work fine.

The regex: 
(($string !~ /^i/)&&
($string !~ /^ddi/)&&
($string =~ /^[a-z_]+([\d]+[\.]?[\d]*)[a-z]?([\d]+[\.]?[\d]*)/))

[download]
Thanks

In reply to Regex trouble by cyclone

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.