People really expect the subs to work they way they do now though, so it's not likely to be changed until perl6 at the earliest. Imagine how much code would break if they suddenly worked differently?
I don't believe I am suggesting that existing "subs" work differently. What I proposed was the ability to declare a sub with "my" just as one does with variables. Do you think that if people saw:
sub print_sum($$) { my ($x, $y) =@_; my sub adder {return $_[0]+$_[1] }; printf "sum of $x, $y = %d\n", adder($x, $y); }
That people would get confused about why "adder" would be used as a helper function to the main sub "print_sum"?

Is there another possible meaning of "my sub" that would be confused with using it to specify that sub is local to the block just like the variables are?

I'm not entirely clear about the term 'lambda'. Something to do with anonymous functions in lisp? I don't recall seeing it in the perl docs I've read (doesn't me an it's not there...just don't recall it! :-)).


In reply to Re^4: Perl scoping not logical...? by perl-diddler
in thread Perl scoping not logical...? by perl-diddler

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.