> Well, the problem is that i don't know which properties that are available at the time, so instead of @colors, @sizes, @shapes, I need something more dynamic.
So use a recursive function!
rec_for([1..3],["a".."c"],[10..13]);
my @tuple;
sub rec_for {
if (@_) {
my $a_list = shift;
for my $x (@$a_list) {
push @tuple, $x;
rec_for(@_);
pop @tuple;
}
} else {
print "tuple: @tuple\n";
}
}
/usr/bin/perl -w /home/lanx/B/PL/PM/recursive_for.pl
tuple: 1 a 10
tuple: 1 a 11
tuple: 1 a 12
tuple: 1 a 13
tuple: 1 b 10
tuple: 1 b 11
...
UPDATE
if you need the result in a %hash, just alter the routine to process key-value pairs
rec_for(a=>[1..3],b=>["a".."c"],c=>[10..13]);
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.