Re: Please fix my writing style


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Re: Please fix my writing style

by hydo (Monk)

on Nov 22, 2008 at 03:10 UTC ( [id://725282]=note: print w/replies, xml )

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in reply to Please fix my writing style

Syntactical differences aside, that's almost exactly how I've been writing code for a long time with the exception of the my statement.

my $newyork;
my $miami;

if ( exp ) {
  statement;
} else {
  statement;
}
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Although now with 5.10 you could do

while ( <DATA> ) {
  given( $_ ) {
    when ( $_ =~ /^NEW YORK:..../ ) {
      expression;
    }
    ...
    default {
       ...
    }
  }
}
[download]

Which is pretty nifty, imo. I'm sure there's even more compact ways you can say that as well. As a matter of practice though, as long as I can come back in 6 months and figure out what I was doing in roughly 30 seconds, I personally don't care about the style. Though, for some inexplicable reason, this always bugs me and I find it thoroughly distracting.

while ( <DATA> )
{
  if ( expr )
  {
    expr
  }
}
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Re^2: Please fix my writing style
by blazar (Canon) on Nov 23, 2008 at 23:24 UTC

Although now with 5.10 you could do
while ( <DATA> ) { given( $_ ) { when ( $_ =~ /^NEW YORK:..../ ) { expression; } ... default { ... } } }
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Which is pretty nifty, imo

I personally believe that the most powerful characteristic of C<when>'s is the syntactic sugar it provides with implicit matches: which most of the times, actually happen to be smart matches - albeit not in this particular case, in which a similar beast that is a regular bind would be used anyway; thus you wouldn't do $_ =~ /REGEX/ but just as you wouldn't do in Perl quite about anywhere: because as usual you either want to use a full fledged generic variable and the binding operator, or the "topicalizer," i.e. $_, i.e. the pronoun "it" - but implicitly!