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Re^4: Common Perl Pitfalls

by jdporter (Canon)
on Apr 11, 2012 at 15:15 UTC ( #964562=note: print w/ replies, xml ) Need Help??


in reply to Re^3: Common Perl Pitfalls
in thread Common Perl Pitfalls

use File::Slurp; my $text = read_file( 'filename' );

Yeah, that's a whole day's work.
I submit that finding the documentation on such a method is substantially easier than finding the documentation (for lack of a better word) for the snippet you gave.

Note.
The "cost" of useing the module is amortized over all the calls you make to any of its methods (of which File::Slurp has several useful ones).

And the cost of downloading a module is amortized over all of the times you ever use it (at least on that machine).


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Re^5: Common Perl Pitfalls
by JavaFan (Canon) on Apr 11, 2012 at 15:29 UTC
    Yeah, that's a whole day's work.
    Maybe not for you or me. But for someone who needs half a day to type
    my $test = do {local $/; <HANDLE>};
    it could easily be.
      half a day to type

      You keep dwelling on that, but I think you're misdirecting. He wrote, "spend half a day writing and debugging code", not "half a day to type in one line".

      If someone has a bug they need to track down, they're far more likely to waste cycles on a line like $_=do{local$/;<>}; than one like $_=read_file($file);

      Now let's compare apples to apples:

      use File::Slurp; my $text = read_file( 'filename' );
      vs
      my $text = do { local $/; open my $fh, '<', 'filename' or die "Error opening filename for read - $!"; <$fh> };

      For most programmers, the former looks sane.

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