Hi All,
I am trying to create dynamic references in a recursion function.
Below I place code which I try, and it return '{}' only.
How to get the initial level reference in else part?
use Data::Dumper;
sub insert {
my ($ref, $head, @tail) = @_;
return unless ( @tail );
if ( @tail and $head ne 'break') { insert( \%{$ref->{$head}}, @tail
+) }
else {
# Here $ref gives '{}' value only.
# How to get values of previous head values (ie. f1,f2,f3)
print "\n==>", Dumper $ref;
# More commands . . .
#insert( \%{$ref->{f1}}, @tail )
}
}
my %hash;
while (<DATA>) {
chomp and insert \%hash, split( '/', $_ ) ;
}
print "\nDump\n", Dumper %hash;
__DATA__
f1/f2/f3/f4/break/f1/f2/f5/break/f1/f2/f6
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.