I must say that I don't fully understand your examples. I need to take more time to study them.

But looking at what comprehensions are (I only had a very vague idea), it seems to me that it would be possible to implement them with the gather and take functions of Perl 6. And it should not be too difficult to implement a gather and take functionality in pure Perl 5. I think that Damian has implemented a CPAN module doing that. The only difficulty might be to make that really lazy, but combining an iterator and gather and take might do the trick.

But I'll look further at your modules this week-end (hopefully), this looks interesting.


In reply to Re^3: A "Fun"ctional Attempt by Laurent_R
in thread A "Fun"ctional Attempt by withering

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.