May I suggest two more possible improvements?

6. Builtin easy aliasing of lexicals:

something like: 

sub get_hash { my %h; ... ;return \%h}
my (*h2)= get_hash();         #I'm not sure about the best syntax
print keys %h2;

[download]
such that beginners don't need to learn dereferencing straight away, just because they have nested data structures or want to return them from a sub.

7. Introducing optional extra Sigils for Hashes and Arrays which behave like the sigils in perl6, that means representing the reference not the list! 

¥hash{key1}{key2}=$hash{key1}{key2};

€arr1[0]=€arr2;
# =>
    €arr1[0][0] == €arr2[0];

push €arr1[0], "string";
# =>
     pop €arr2 == "string";

[download]
I know finding appropriate symbols in all charsets is complicated, but this could facilitate forward compability to perl6, if perl6 could then use these symbols as alternative aliases for @ and %.

just ideas ...

Cheers Rolf

In reply to Two more Features Perl 5 Maybe Needs by LanX
in thread Five Features Perl 5 Needs Now by Arunbear

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.