monkfan,
Not only does your code not do what was asked for,
I think it is broken. I believe both uses of glob in your while loop lead to infinite loops. I can't be sure as I don't have access to perl currently. Update: tye informed me this does work. This is because
glob in scalar context doesn't create an iterator, it is an iterator. After re-reading
I/O Operators in
perlop I realized I was mistaken. I would still recommend spelling out
glob over angle brackets to avoid confusion with
readline.
Update 2: I am not sure why, but this still seems odd to me. Perhaps it is because I have less than 30 hours to wait before starting a 3 week vacation. I wonder how the following two examples would behave (i.e. how they are scoped):
while (my $file = next_file()) {
print "$file\n";
}
sub next_file { <*> }
while (my $file = next_file()) {
print "$file\n";
my $next = <*>;
last if ! defined $next;
print "$next\n";
}
sub next_file { <*> }
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: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.