Now you know why Perl doesn't have a switch statement . . .
It should still get one, since the advantage of C switches it that they have O(1) efficency, whereas most of the equivilent idioms in Perl have O(n) worst-case time.
<UPDATE>Actually, the one posted above always runs in O(n) time.</UPDATE> <UPDATE2>Oops, that update wasn't quite true. Thanks demerphq.</UPDATE2> You can get O(1) time using a hash table that stores subroutine refs, but then you make implementing fall-through a lot harder.
Fortunatly, we're getting a real switch in Perl6.
I wanted to explore how Perl's closures can be manipulated, and ended up creating an object system by accident.
Note: All code is untested, unless otherwise stated
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:
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, 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, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||