Beefy Boxes and Bandwidth Generously Provided by pair Networks
P is for Practical
 
PerlMonks  

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??
> I have no idea what you are asking.

Maybe I'm not smart enough for Smart Match ;)

It seems that the operands in Smart Match are swapped to what I expected after reading the docs

Is perlsyn#Switch statements clear???

Most of the power comes from implicit smart matching: when($foo) is exactly equivalent to when($_ ~~ $foo)
($_ was given)

and

# $a $b Type of Match Implied Matching Code # ====== ===== ===================== ============= ... # Array Regex array grep grep /$b/, @$a
see perlsyn#Smart matching in detail

so when writing

given (@a) { when (/abc/) {} }

I expect this to be tested:  @a ~~ /$b/ in the meaning of  grep /$b/, @$a

Two possibilities:

a) the docs need a rewrite!

b) my brain needs a rewrite! ;)

Cheers Rolf ...still confused...

UPDATE: Sorry personally I think that ~~ is far too overloaden with functionality to be easily understood!!!


In reply to Smart enough for Smart Match??? (was "Understanding ...Given/When" ) by LanX
in thread Understanding the benefit of Given/When ... 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!
  • 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, 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
  • 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.
  • Log In?
    Username:
    Password:

    What's my password?
    Create A New User
    Chatterbox?
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others having an uproarious good time at the Monastery: (7)
    As of 2015-08-01 01:44 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









      Results (285 votes), past polls