Beefy Boxes and Bandwidth Generously Provided by pair Networks
Syntactic Confectionery Delight
 
PerlMonks  

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??

i've been localizing handles with anonymous subroutines for a while now.

i think i'd write your snippet as an anonymous sub, giving it a little more muscle compared to a do block. something like:

#!/usr/bin/perl require 5.006_001; use strict; use warnings; $|++; my %cool_funcs = ( ## slurp a file to a scalar ## pass filename (as scalar) ## returns contents of file (scalar context) slurp_to_scalar => sub{ local( *ARGV, $/ ); @ARGV = @_; <> }, ## slurp one or more files to an array ## pass filename(s) (as scalar) ## returns contents of file(s) (list context) ## returns number of lines (scalar context) slurp_to_array => sub{ local *ARGV; @ARGV = @_; <> }, ); ## to use it: ## create a list of test files my @files = @ARGV; ## get the contents to an array, and the number of lines to a scalar my $no_of_lines = ( my @contents ) = $cool_funcs{slurp_to_array}->( @files ); ## these values match... print $no_of_lines, $/, scalar @contents, $/; ## here's the good stuff... print @contents; ## get file to scalar -- note extra args are ignored my $data = $cool_funcs{slurp_to_scalar}->( @files ); ## here's the file's contents... print $data;

~Particle *accelerates*


In reply to Re: Cheap idioms by particle
in thread Cheap idioms by Juerd

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 chilling in the Monastery: (12)
    As of 2015-07-31 08:21 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 (275 votes), past polls