Hmmm, I seem to recall localizing a hash value within a deeply nested structure, like:
my $root = { some_object => obj };
$root->{some_object} = new Object;
my $arrayref = $root->{some_object}->objectMethodReturningEmbeddedArra
+yref();
$arrayref->[0] = 5;
{
local $arrayref->[0] = 0;
# execute some code, which sees 0 not 5
}
# now array element is 5 again
I specifically remember wanting to do something like that in 5.004 and not being able to, having instead to do something like this:
# ...
$arrayref->[0] = 5;
# ...
{
my $lcl = $arrayref->[0];
$arrayref->[0] = 0;
# execute some code, which sees 0 not 5
$arrayref->[0] = $lcl;
}
# now array element is 5 again
dmm
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.