Hi

I'm experimenting with some operator overloading and I'm getting bitten by the diamond operator. A numeric "less-then" < in list context is parsed as the start of a diamond glob <>

  DB<9> sub bla { bless [@_], "Test" }


  DB<10> package Test; use overload "<" => sub { warn "works" };


  DB<11> bla() < bla
works at (eval 18) ...

  DB<12> bla < bla
Unterminated <> operator at (eval 20) ...

[download]

I'm aware that I could give bla an empty prototype in line 9 or call it with an empty list (like in line 11), or embrace it in brackets, but I need it to swallow a list of args in other parts.

I'm not very confident there is a way but the almighty monastery is always able to surprise me... ;-)

Cheers Rolf
(addicted to the Perl Programming Language and ☆☆☆☆ :)
Wikisyntax for the Monastery

update

for those wondering, other operators "work"

  DB<13> package Test; use overload ">" => sub { warn "works" };


  DB<14> bla > bla
works at (eval 21)

[download]

In reply to Disabling the interpretation of diamond <> operator in package? by LanX

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.