Now, I understand what you are looking for, it wasn't clear to me so far. If you store ' ' into a variable, you don't get the expected behavior as if you hard code:
my @fields = split ' ', $line;
Using "qr/\s+/;" as a split pattern improves the result but still does not yields what you want (you still get an extra empty element at the beginning of the array).
Well, then I don't see any real simple direct solution. Even something like this:
my @fields = split $pattern? $pattern : ' ', $line;
does not do what you are looking for. The only solutions I can think of are either to use the above "qr/\s+/;" and shift the first element if empty, or use a if else construct, or yet this equivalent construct:
my @fields = defined $pattern? split $pattern, $line : split ' ', $line;
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.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||