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Re^2: (Beginner) Can 'qw' be implemented into a list?

by AnomalousMonk (Archbishop)
on Mar 24, 2015 at 18:13 UTC ( [id://1121194]=note: print w/replies, xml ) Need Help??


in reply to Re: (Beginner) Can 'qw' be implemented into a list?
in thread (Beginner) Can 'qw' be implemented into a list?

... a list is an UNordered sequence of values. ... Lists cannot be accessed using an index.

I disagree with both these assertions. To my way of thinking, lists are most certainly ordered. In what sense do you think of them otherwise? They can also be array indexed:

c:\@Work\Perl>perl -wMstrict -le "my $s = ('foo', 'bar', 'baz')[1]; print qq{'$s'}; ;; $s = (qw(zip zap zop))[1]; print qq{'$s'}; ;; $s = qw(hic hac hoc)[1]; print qq{'$s'}; " 'bar' 'zap' 'hac'
Note: I think the  qw(hic hac hoc)[1] example relies on a syntactic feature that, if not deprecated, is at least disparaged and contumed, and may be slated to go away someday/someversion (I'm running this with 5.14). It is certainly deprecated (as of 5.14) in a for-loop:
c:\@Work\Perl>perl -wMstrict -le "for my $s qw(hic hac hoc) { print qq{'$s'}; } " Use of qw(...) as parentheses is deprecated at -e line 1. 'hic' 'hac' 'hoc'


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Re^3: (Beginner) Can 'qw' be implemented into a list?
by Discipulus (Canon) on Mar 25, 2015 at 07:55 UTC
    You are obviously right, thanks to point me in the right direction. I still find difficult to be precise describing Perl behaviour. My attempt was to tell the difference between lists and arrays and the OP confusion undeerstanding the @arr = qw (a b); construct.

    Anyway you too are wrong, because the latin demonstrative pronouns are: qw(hic haec hoc) and not qw(hic hac hoc) ...;=)

    L*
    There are no rules, there are no thumbs..
    Reinvent the wheel, then learn The Wheel; may be one day you reinvent one of THE WHEELS.

      A little hiccup in my Latin lexicon. :)


      Give a man a fish:  <%-(-(-(-<

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