Beefy Boxes and Bandwidth Generously Provided by pair Networks
Pathologically Eclectic Rubbish Lister
 
PerlMonks  

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
It's mildly ugly, but in fact it's not really slow or all that fattening :)

The only problem with it is that you're going to be carrying the Sort key after you no longer need it.

ST to the rescue!

sub computeSortKey { my $aref=shift; my $sort; my $M = 100; for (@{$aref}) { $sort += $M * $_; $M = $M / 100; } return $sort; } #Schwartzian Transform @Tree = map {$_->[0]} sort {$a->[1] <=> $b->[1]} map {[ $_, computeSortKey($_->{Path})]} @Tree;
Note that I don't have perl on this PC, so I can't double check the code for syntax errors, but I think that'll work for you.

The advantages of doing it this way are that
1) it's a well known idiom, so a lot of perl programmers will grok right away what you're trying to do, and
2) you don't keep the sort key around after you no longer need it, so it keeps @Tree relatively clean.
--
Mike


In reply to Re: Complex Sort - using varying numbers of parameters by RMGir
in thread Complex Sort - using varying numbers of parameters by George_Sherston

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":



  • Are you posting in the right place? Check out Where do I post X? to know for sure.
  • Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
    <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
  • Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
  • Want more info? How to link or or How to display code and escape characters are good places to start.
Log In?
Username:
Password:

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

How do I use this? | Other CB clients
Other Users?
Others romping around the Monastery: (1)
As of 2021-08-04 03:16 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    My primary motivation for participating at PerlMonks is: (Choices in context)








    Results (41 votes). Check out past polls.

    Notices?