I have a device that I'm connecting to via a perl script and outputting the numerical values it sends the script. The problem is, sometimes the device screws up and sends extremely large negative numbers to me, which it is not suppose to do.
The normal output from the device is:
It could output numbers like the above (which are good outputs). However, sometimes it outputs garbage like this:
I'm trying to create a regular expression that will match large negative numbers and not the smaller ones. If I do something like:
my $match =~ m/-\d+\d+\d+\d+\d+\d+\d+\d+\d+\d+\d+.*\..*/;
It always matches. Can someone help me make a regular expression that matches only large negative numbers?
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.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||