Ok, so I'm trying to use Text::Sprintf::Named -- I'm looking for the functionality to do something similar to GNU /bin/find's -printf. The catch is I'm using Moose lazy/default, so I don't want the unneeded accessors to be used at all. I'm wondering if there is a pragma or module that changes the way perl works to allow this behavior:

sub value { die 'bad' }
my $hash = { "key" => value() }
die 'good'

[download]

I want that example to die with good. So I'm looking to make a whole hash lazy. I'm kind of just thinking out loud and playing around. I can't return a subref because T::S::N doesn't accept it. Ideally, T::S::N, would also support values deeper in a hash, { key => { title => 'foo', value => 'bar' } } or execute by $obj->$name. ;) If anyone else has done an exercise like this please give your input. I'm writing a printf filter for postgres's EXPLAIN



Evan Carroll
www.EvanCarroll.com

In reply to Printf in perl / Lazy hash possible? by EvanCarroll

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • 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:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.